app/assets/javascripts/d3.v4.js in d3-rails-4.2.2 vs app/assets/javascripts/d3.v4.js in d3-rails-4.2.4

- old
+ new

@@ -1,16228 +1,16279 @@ -// https://d3js.org Version 4.2.2. Copyright 2016 Mike Bostock. +// https://d3js.org Version 4.2.4. Copyright 2016 Mike Bostock. (function (global, factory) { typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : typeof define === 'function' && define.amd ? define(['exports'], factory) : (factory((global.d3 = global.d3 || {}))); }(this, (function (exports) { 'use strict'; - var version = "4.2.2"; +var version = "4.2.4"; - function ascending(a, b) { - return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; - } +var ascending = function(a, b) { + return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; +} - function bisector(compare) { - if (compare.length === 1) compare = ascendingComparator(compare); - return { - left: function(a, x, lo, hi) { - if (lo == null) lo = 0; - if (hi == null) hi = a.length; - while (lo < hi) { - var mid = lo + hi >>> 1; - if (compare(a[mid], x) < 0) lo = mid + 1; - else hi = mid; - } - return lo; - }, - right: function(a, x, lo, hi) { - if (lo == null) lo = 0; - if (hi == null) hi = a.length; - while (lo < hi) { - var mid = lo + hi >>> 1; - if (compare(a[mid], x) > 0) hi = mid; - else lo = mid + 1; - } - return lo; +var bisector = function(compare) { + if (compare.length === 1) compare = ascendingComparator(compare); + return { + left: function(a, x, lo, hi) { + if (lo == null) lo = 0; + if (hi == null) hi = a.length; + while (lo < hi) { + var mid = lo + hi >>> 1; + if (compare(a[mid], x) < 0) lo = mid + 1; + else hi = mid; } - }; - } + return lo; + }, + right: function(a, x, lo, hi) { + if (lo == null) lo = 0; + if (hi == null) hi = a.length; + while (lo < hi) { + var mid = lo + hi >>> 1; + if (compare(a[mid], x) > 0) hi = mid; + else lo = mid + 1; + } + return lo; + } + }; +} - function ascendingComparator(f) { - return function(d, x) { - return ascending(f(d), x); - }; - } +function ascendingComparator(f) { + return function(d, x) { + return ascending(f(d), x); + }; +} - var ascendingBisect = bisector(ascending); - var bisectRight = ascendingBisect.right; - var bisectLeft = ascendingBisect.left; +var ascendingBisect = bisector(ascending); +var bisectRight = ascendingBisect.right; +var bisectLeft = ascendingBisect.left; - function descending(a, b) { - return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; - } +var descending = function(a, b) { + return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; +} - function number(x) { - return x === null ? NaN : +x; - } +var number = function(x) { + return x === null ? NaN : +x; +} - function variance(array, f) { - var n = array.length, - m = 0, - a, - d, - s = 0, - i = -1, - j = 0; +var variance = function(array, f) { + var n = array.length, + m = 0, + a, + d, + s = 0, + i = -1, + j = 0; - if (f == null) { - while (++i < n) { - if (!isNaN(a = number(array[i]))) { - d = a - m; - m += d / ++j; - s += d * (a - m); - } + if (f == null) { + while (++i < n) { + if (!isNaN(a = number(array[i]))) { + d = a - m; + m += d / ++j; + s += d * (a - m); } } + } - else { - while (++i < n) { - if (!isNaN(a = number(f(array[i], i, array)))) { - d = a - m; - m += d / ++j; - s += d * (a - m); - } + else { + while (++i < n) { + if (!isNaN(a = number(f(array[i], i, array)))) { + d = a - m; + m += d / ++j; + s += d * (a - m); } } - - if (j > 1) return s / (j - 1); } - function deviation(array, f) { - var v = variance(array, f); - return v ? Math.sqrt(v) : v; - } + if (j > 1) return s / (j - 1); +} - function extent(array, f) { - var i = -1, - n = array.length, - a, - b, - c; +var deviation = function(array, f) { + var v = variance(array, f); + return v ? Math.sqrt(v) : v; +} - if (f == null) { - while (++i < n) if ((b = array[i]) != null && b >= b) { a = c = b; break; } - while (++i < n) if ((b = array[i]) != null) { - if (a > b) a = b; - if (c < b) c = b; - } - } +var extent = function(array, f) { + var i = -1, + n = array.length, + a, + b, + c; - else { - while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = c = b; break; } - while (++i < n) if ((b = f(array[i], i, array)) != null) { - if (a > b) a = b; - if (c < b) c = b; - } + if (f == null) { + while (++i < n) if ((b = array[i]) != null && b >= b) { a = c = b; break; } + while (++i < n) if ((b = array[i]) != null) { + if (a > b) a = b; + if (c < b) c = b; } + } - return [a, c]; + else { + while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = c = b; break; } + while (++i < n) if ((b = f(array[i], i, array)) != null) { + if (a > b) a = b; + if (c < b) c = b; + } } - var array = Array.prototype; + return [a, c]; +} - var slice = array.slice; - var map = array.map; +var array = Array.prototype; - function constant(x) { - return function() { - return x; - }; - } +var slice = array.slice; +var map = array.map; - function identity(x) { +var constant$1 = function(x) { + return function() { return x; - } + }; +} - function range(start, stop, step) { - start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step; +var identity = function(x) { + return x; +} - var i = -1, - n = Math.max(0, Math.ceil((stop - start) / step)) | 0, - range = new Array(n); +var range = function(start, stop, step) { + start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step; - while (++i < n) { - range[i] = start + i * step; - } + var i = -1, + n = Math.max(0, Math.ceil((stop - start) / step)) | 0, + range = new Array(n); - return range; + while (++i < n) { + range[i] = start + i * step; } - var e10 = Math.sqrt(50); - var e5 = Math.sqrt(10); - var e2 = Math.sqrt(2); - function ticks(start, stop, count) { - var step = tickStep(start, stop, count); - return range( - Math.ceil(start / step) * step, - Math.floor(stop / step) * step + step / 2, // inclusive - step - ); - } + return range; +} - function tickStep(start, stop, count) { - var step0 = Math.abs(stop - start) / Math.max(0, count), - step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)), - error = step0 / step1; - if (error >= e10) step1 *= 10; - else if (error >= e5) step1 *= 5; - else if (error >= e2) step1 *= 2; - return stop < start ? -step1 : step1; - } +var e10 = Math.sqrt(50); +var e5 = Math.sqrt(10); +var e2 = Math.sqrt(2); - function sturges(values) { - return Math.ceil(Math.log(values.length) / Math.LN2) + 1; - } +var ticks = function(start, stop, count) { + var step = tickStep(start, stop, count); + return range( + Math.ceil(start / step) * step, + Math.floor(stop / step) * step + step / 2, // inclusive + step + ); +} - function histogram() { - var value = identity, - domain = extent, - threshold = sturges; +function tickStep(start, stop, count) { + var step0 = Math.abs(stop - start) / Math.max(0, count), + step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)), + error = step0 / step1; + if (error >= e10) step1 *= 10; + else if (error >= e5) step1 *= 5; + else if (error >= e2) step1 *= 2; + return stop < start ? -step1 : step1; +} - function histogram(data) { - var i, - n = data.length, - x, - values = new Array(n); +var sturges = function(values) { + return Math.ceil(Math.log(values.length) / Math.LN2) + 1; +} - for (i = 0; i < n; ++i) { - values[i] = value(data[i], i, data); - } +var histogram = function() { + var value = identity, + domain = extent, + threshold = sturges; - var xz = domain(values), - x0 = xz[0], - x1 = xz[1], - tz = threshold(values, x0, x1); + function histogram(data) { + var i, + n = data.length, + x, + values = new Array(n); - // Convert number of thresholds into uniform thresholds. - if (!Array.isArray(tz)) tz = ticks(x0, x1, tz); + for (i = 0; i < n; ++i) { + values[i] = value(data[i], i, data); + } - // Remove any thresholds outside the domain. - var m = tz.length; - while (tz[0] <= x0) tz.shift(), --m; - while (tz[m - 1] >= x1) tz.pop(), --m; + var xz = domain(values), + x0 = xz[0], + x1 = xz[1], + tz = threshold(values, x0, x1); - var bins = new Array(m + 1), - bin; + // Convert number of thresholds into uniform thresholds. + if (!Array.isArray(tz)) tz = ticks(x0, x1, tz); - // Initialize bins. - for (i = 0; i <= m; ++i) { - bin = bins[i] = []; - bin.x0 = i > 0 ? tz[i - 1] : x0; - bin.x1 = i < m ? tz[i] : x1; - } + // Remove any thresholds outside the domain. + var m = tz.length; + while (tz[0] <= x0) tz.shift(), --m; + while (tz[m - 1] >= x1) tz.pop(), --m; - // Assign data to bins by value, ignoring any outside the domain. - for (i = 0; i < n; ++i) { - x = values[i]; - if (x0 <= x && x <= x1) { - bins[bisectRight(tz, x, 0, m)].push(data[i]); - } - } + var bins = new Array(m + 1), + bin; - return bins; + // Initialize bins. + for (i = 0; i <= m; ++i) { + bin = bins[i] = []; + bin.x0 = i > 0 ? tz[i - 1] : x0; + bin.x1 = i < m ? tz[i] : x1; } - histogram.value = function(_) { - return arguments.length ? (value = typeof _ === "function" ? _ : constant(_), histogram) : value; - }; + // Assign data to bins by value, ignoring any outside the domain. + for (i = 0; i < n; ++i) { + x = values[i]; + if (x0 <= x && x <= x1) { + bins[bisectRight(tz, x, 0, m)].push(data[i]); + } + } - histogram.domain = function(_) { - return arguments.length ? (domain = typeof _ === "function" ? _ : constant([_[0], _[1]]), histogram) : domain; - }; + return bins; + } - histogram.thresholds = function(_) { - return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant(slice.call(_)) : constant(_), histogram) : threshold; - }; + histogram.value = function(_) { + return arguments.length ? (value = typeof _ === "function" ? _ : constant$1(_), histogram) : value; + }; - return histogram; - } + histogram.domain = function(_) { + return arguments.length ? (domain = typeof _ === "function" ? _ : constant$1([_[0], _[1]]), histogram) : domain; + }; - function threshold(array, p, f) { - if (f == null) f = number; - if (!(n = array.length)) return; - if ((p = +p) <= 0 || n < 2) return +f(array[0], 0, array); - if (p >= 1) return +f(array[n - 1], n - 1, array); - var n, - h = (n - 1) * p, - i = Math.floor(h), - a = +f(array[i], i, array), - b = +f(array[i + 1], i + 1, array); - return a + (b - a) * (h - i); - } + histogram.thresholds = function(_) { + return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant$1(slice.call(_)) : constant$1(_), histogram) : threshold; + }; - function freedmanDiaconis(values, min, max) { - values = map.call(values, number).sort(ascending); - return Math.ceil((max - min) / (2 * (threshold(values, 0.75) - threshold(values, 0.25)) * Math.pow(values.length, -1 / 3))); - } + return histogram; +} - function scott(values, min, max) { - return Math.ceil((max - min) / (3.5 * deviation(values) * Math.pow(values.length, -1 / 3))); - } +var threshold = function(array, p, f) { + if (f == null) f = number; + if (!(n = array.length)) return; + if ((p = +p) <= 0 || n < 2) return +f(array[0], 0, array); + if (p >= 1) return +f(array[n - 1], n - 1, array); + var n, + h = (n - 1) * p, + i = Math.floor(h), + a = +f(array[i], i, array), + b = +f(array[i + 1], i + 1, array); + return a + (b - a) * (h - i); +} - function max(array, f) { - var i = -1, - n = array.length, - a, - b; +var freedmanDiaconis = function(values, min, max) { + values = map.call(values, number).sort(ascending); + return Math.ceil((max - min) / (2 * (threshold(values, 0.75) - threshold(values, 0.25)) * Math.pow(values.length, -1 / 3))); +} - if (f == null) { - while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; } - while (++i < n) if ((b = array[i]) != null && b > a) a = b; - } +var scott = function(values, min, max) { + return Math.ceil((max - min) / (3.5 * deviation(values) * Math.pow(values.length, -1 / 3))); +} - else { - while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = b; break; } - while (++i < n) if ((b = f(array[i], i, array)) != null && b > a) a = b; - } +var max = function(array, f) { + var i = -1, + n = array.length, + a, + b; - return a; + if (f == null) { + while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; } + while (++i < n) if ((b = array[i]) != null && b > a) a = b; } - function mean(array, f) { - var s = 0, - n = array.length, - a, - i = -1, - j = n; + else { + while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = b; break; } + while (++i < n) if ((b = f(array[i], i, array)) != null && b > a) a = b; + } - if (f == null) { - while (++i < n) if (!isNaN(a = number(array[i]))) s += a; else --j; - } + return a; +} - else { - while (++i < n) if (!isNaN(a = number(f(array[i], i, array)))) s += a; else --j; - } +var mean = function(array, f) { + var s = 0, + n = array.length, + a, + i = -1, + j = n; - if (j) return s / j; + if (f == null) { + while (++i < n) if (!isNaN(a = number(array[i]))) s += a; else --j; } - function median(array, f) { - var numbers = [], - n = array.length, - a, - i = -1; + else { + while (++i < n) if (!isNaN(a = number(f(array[i], i, array)))) s += a; else --j; + } - if (f == null) { - while (++i < n) if (!isNaN(a = number(array[i]))) numbers.push(a); - } + if (j) return s / j; +} - else { - while (++i < n) if (!isNaN(a = number(f(array[i], i, array)))) numbers.push(a); - } +var median = function(array, f) { + var numbers = [], + n = array.length, + a, + i = -1; - return threshold(numbers.sort(ascending), 0.5); + if (f == null) { + while (++i < n) if (!isNaN(a = number(array[i]))) numbers.push(a); } - function merge(arrays) { - var n = arrays.length, - m, - i = -1, - j = 0, - merged, - array; + else { + while (++i < n) if (!isNaN(a = number(f(array[i], i, array)))) numbers.push(a); + } - while (++i < n) j += arrays[i].length; - merged = new Array(j); + return threshold(numbers.sort(ascending), 0.5); +} - while (--n >= 0) { - array = arrays[n]; - m = array.length; - while (--m >= 0) { - merged[--j] = array[m]; - } - } +var merge = function(arrays) { + var n = arrays.length, + m, + i = -1, + j = 0, + merged, + array; - return merged; - } + while (++i < n) j += arrays[i].length; + merged = new Array(j); - function min(array, f) { - var i = -1, - n = array.length, - a, - b; - - if (f == null) { - while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; } - while (++i < n) if ((b = array[i]) != null && a > b) a = b; + while (--n >= 0) { + array = arrays[n]; + m = array.length; + while (--m >= 0) { + merged[--j] = array[m]; } + } - else { - while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = b; break; } - while (++i < n) if ((b = f(array[i], i, array)) != null && a > b) a = b; - } + return merged; +} - return a; - } +var min = function(array, f) { + var i = -1, + n = array.length, + a, + b; - function pairs(array) { - var i = 0, n = array.length - 1, p = array[0], pairs = new Array(n < 0 ? 0 : n); - while (i < n) pairs[i] = [p, p = array[++i]]; - return pairs; + if (f == null) { + while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; } + while (++i < n) if ((b = array[i]) != null && a > b) a = b; } - function permute(array, indexes) { - var i = indexes.length, permutes = new Array(i); - while (i--) permutes[i] = array[indexes[i]]; - return permutes; + else { + while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = b; break; } + while (++i < n) if ((b = f(array[i], i, array)) != null && a > b) a = b; } - function scan(array, compare) { - if (!(n = array.length)) return; - var i = 0, - n, - j = 0, - xi, - xj = array[j]; + return a; +} - if (!compare) compare = ascending; +var pairs = function(array) { + var i = 0, n = array.length - 1, p = array[0], pairs = new Array(n < 0 ? 0 : n); + while (i < n) pairs[i] = [p, p = array[++i]]; + return pairs; +} - while (++i < n) if (compare(xi = array[i], xj) < 0 || compare(xj, xj) !== 0) xj = xi, j = i; +var permute = function(array, indexes) { + var i = indexes.length, permutes = new Array(i); + while (i--) permutes[i] = array[indexes[i]]; + return permutes; +} - if (compare(xj, xj) === 0) return j; - } +var scan = function(array, compare) { + if (!(n = array.length)) return; + var i = 0, + n, + j = 0, + xi, + xj = array[j]; - function shuffle(array, i0, i1) { - var m = (i1 == null ? array.length : i1) - (i0 = i0 == null ? 0 : +i0), - t, - i; + if (!compare) compare = ascending; - while (m) { - i = Math.random() * m-- | 0; - t = array[m + i0]; - array[m + i0] = array[i + i0]; - array[i + i0] = t; - } + while (++i < n) if (compare(xi = array[i], xj) < 0 || compare(xj, xj) !== 0) xj = xi, j = i; - return array; - } + if (compare(xj, xj) === 0) return j; +} - function sum(array, f) { - var s = 0, - n = array.length, - a, - i = -1; +var shuffle = function(array, i0, i1) { + var m = (i1 == null ? array.length : i1) - (i0 = i0 == null ? 0 : +i0), + t, + i; - if (f == null) { - while (++i < n) if (a = +array[i]) s += a; // Note: zero and null are equivalent. - } + while (m) { + i = Math.random() * m-- | 0; + t = array[m + i0]; + array[m + i0] = array[i + i0]; + array[i + i0] = t; + } - else { - while (++i < n) if (a = +f(array[i], i, array)) s += a; - } + return array; +} - return s; - } +var sum = function(array, f) { + var s = 0, + n = array.length, + a, + i = -1; - function transpose(matrix) { - if (!(n = matrix.length)) return []; - for (var i = -1, m = min(matrix, length), transpose = new Array(m); ++i < m;) { - for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n;) { - row[j] = matrix[j][i]; - } - } - return transpose; + if (f == null) { + while (++i < n) if (a = +array[i]) s += a; // Note: zero and null are equivalent. } - function length(d) { - return d.length; + else { + while (++i < n) if (a = +f(array[i], i, array)) s += a; } - function zip() { - return transpose(arguments); + return s; +} + +var transpose = function(matrix) { + if (!(n = matrix.length)) return []; + for (var i = -1, m = min(matrix, length), transpose = new Array(m); ++i < m;) { + for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n;) { + row[j] = matrix[j][i]; + } } + return transpose; +} - var prefix = "$"; +function length(d) { + return d.length; +} - function Map() {} +var zip = function() { + return transpose(arguments); +} - Map.prototype = map$1.prototype = { - constructor: Map, - has: function(key) { - return (prefix + key) in this; - }, - get: function(key) { - return this[prefix + key]; - }, - set: function(key, value) { - this[prefix + key] = value; - return this; - }, - remove: function(key) { - var property = prefix + key; - return property in this && delete this[property]; - }, - clear: function() { - for (var property in this) if (property[0] === prefix) delete this[property]; - }, - keys: function() { - var keys = []; - for (var property in this) if (property[0] === prefix) keys.push(property.slice(1)); - return keys; - }, - values: function() { - var values = []; - for (var property in this) if (property[0] === prefix) values.push(this[property]); - return values; - }, - entries: function() { - var entries = []; - for (var property in this) if (property[0] === prefix) entries.push({key: property.slice(1), value: this[property]}); - return entries; - }, - size: function() { - var size = 0; - for (var property in this) if (property[0] === prefix) ++size; - return size; - }, - empty: function() { - for (var property in this) if (property[0] === prefix) return false; - return true; - }, - each: function(f) { - for (var property in this) if (property[0] === prefix) f(this[property], property.slice(1), this); - } - }; +var prefix = "$"; - function map$1(object, f) { - var map = new Map; +function Map() {} - // Copy constructor. - if (object instanceof Map) object.each(function(value, key) { map.set(key, value); }); +Map.prototype = map$1.prototype = { + constructor: Map, + has: function(key) { + return (prefix + key) in this; + }, + get: function(key) { + return this[prefix + key]; + }, + set: function(key, value) { + this[prefix + key] = value; + return this; + }, + remove: function(key) { + var property = prefix + key; + return property in this && delete this[property]; + }, + clear: function() { + for (var property in this) if (property[0] === prefix) delete this[property]; + }, + keys: function() { + var keys = []; + for (var property in this) if (property[0] === prefix) keys.push(property.slice(1)); + return keys; + }, + values: function() { + var values = []; + for (var property in this) if (property[0] === prefix) values.push(this[property]); + return values; + }, + entries: function() { + var entries = []; + for (var property in this) if (property[0] === prefix) entries.push({key: property.slice(1), value: this[property]}); + return entries; + }, + size: function() { + var size = 0; + for (var property in this) if (property[0] === prefix) ++size; + return size; + }, + empty: function() { + for (var property in this) if (property[0] === prefix) return false; + return true; + }, + each: function(f) { + for (var property in this) if (property[0] === prefix) f(this[property], property.slice(1), this); + } +}; - // Index array by numeric index or specified key function. - else if (Array.isArray(object)) { - var i = -1, - n = object.length, - o; +function map$1(object, f) { + var map = new Map; - if (f == null) while (++i < n) map.set(i, object[i]); - else while (++i < n) map.set(f(o = object[i], i, object), o); - } + // Copy constructor. + if (object instanceof Map) object.each(function(value, key) { map.set(key, value); }); - // Convert object to map. - else if (object) for (var key in object) map.set(key, object[key]); + // Index array by numeric index or specified key function. + else if (Array.isArray(object)) { + var i = -1, + n = object.length, + o; - return map; + if (f == null) while (++i < n) map.set(i, object[i]); + else while (++i < n) map.set(f(o = object[i], i, object), o); } - function nest() { - var keys = [], - sortKeys = [], - sortValues, - rollup, - nest; + // Convert object to map. + else if (object) for (var key in object) map.set(key, object[key]); - function apply(array, depth, createResult, setResult) { - if (depth >= keys.length) return rollup != null - ? rollup(array) : (sortValues != null - ? array.sort(sortValues) - : array); + return map; +} - var i = -1, - n = array.length, - key = keys[depth++], - keyValue, - value, - valuesByKey = map$1(), - values, - result = createResult(); +var nest = function() { + var keys = [], + sortKeys = [], + sortValues, + rollup, + nest; - while (++i < n) { - if (values = valuesByKey.get(keyValue = key(value = array[i]) + "")) { - values.push(value); - } else { - valuesByKey.set(keyValue, [value]); - } - } + function apply(array, depth, createResult, setResult) { + if (depth >= keys.length) return rollup != null + ? rollup(array) : (sortValues != null + ? array.sort(sortValues) + : array); - valuesByKey.each(function(values, key) { - setResult(result, key, apply(values, depth, createResult, setResult)); - }); + var i = -1, + n = array.length, + key = keys[depth++], + keyValue, + value, + valuesByKey = map$1(), + values, + result = createResult(); - return result; + while (++i < n) { + if (values = valuesByKey.get(keyValue = key(value = array[i]) + "")) { + values.push(value); + } else { + valuesByKey.set(keyValue, [value]); + } } - function entries(map, depth) { - if (++depth > keys.length) return map; - var array, sortKey = sortKeys[depth - 1]; - if (rollup != null && depth >= keys.length) array = map.entries(); - else array = [], map.each(function(v, k) { array.push({key: k, values: entries(v, depth)}); }); - return sortKey != null ? array.sort(function(a, b) { return sortKey(a.key, b.key); }) : array; - } + valuesByKey.each(function(values, key) { + setResult(result, key, apply(values, depth, createResult, setResult)); + }); - return nest = { - object: function(array) { return apply(array, 0, createObject, setObject); }, - map: function(array) { return apply(array, 0, createMap, setMap); }, - entries: function(array) { return entries(apply(array, 0, createMap, setMap), 0); }, - key: function(d) { keys.push(d); return nest; }, - sortKeys: function(order) { sortKeys[keys.length - 1] = order; return nest; }, - sortValues: function(order) { sortValues = order; return nest; }, - rollup: function(f) { rollup = f; return nest; } - }; + return result; } - function createObject() { - return {}; + function entries(map, depth) { + if (++depth > keys.length) return map; + var array, sortKey = sortKeys[depth - 1]; + if (rollup != null && depth >= keys.length) array = map.entries(); + else array = [], map.each(function(v, k) { array.push({key: k, values: entries(v, depth)}); }); + return sortKey != null ? array.sort(function(a, b) { return sortKey(a.key, b.key); }) : array; } - function setObject(object, key, value) { - object[key] = value; - } + return nest = { + object: function(array) { return apply(array, 0, createObject, setObject); }, + map: function(array) { return apply(array, 0, createMap, setMap); }, + entries: function(array) { return entries(apply(array, 0, createMap, setMap), 0); }, + key: function(d) { keys.push(d); return nest; }, + sortKeys: function(order) { sortKeys[keys.length - 1] = order; return nest; }, + sortValues: function(order) { sortValues = order; return nest; }, + rollup: function(f) { rollup = f; return nest; } + }; +} - function createMap() { - return map$1(); - } +function createObject() { + return {}; +} - function setMap(map, key, value) { - map.set(key, value); - } +function setObject(object, key, value) { + object[key] = value; +} - function Set() {} +function createMap() { + return map$1(); +} - var proto = map$1.prototype; +function setMap(map, key, value) { + map.set(key, value); +} - Set.prototype = set.prototype = { - constructor: Set, - has: proto.has, - add: function(value) { - value += ""; - this[prefix + value] = value; - return this; - }, - remove: proto.remove, - clear: proto.clear, - values: proto.keys, - size: proto.size, - empty: proto.empty, - each: proto.each - }; +function Set() {} - function set(object, f) { - var set = new Set; +var proto = map$1.prototype; - // Copy constructor. - if (object instanceof Set) object.each(function(value) { set.add(value); }); +Set.prototype = set.prototype = { + constructor: Set, + has: proto.has, + add: function(value) { + value += ""; + this[prefix + value] = value; + return this; + }, + remove: proto.remove, + clear: proto.clear, + values: proto.keys, + size: proto.size, + empty: proto.empty, + each: proto.each +}; - // Otherwise, assume it’s an array. - else if (object) { - var i = -1, n = object.length; - if (f == null) while (++i < n) set.add(object[i]); - else while (++i < n) set.add(f(object[i], i, object)); - } +function set(object, f) { + var set = new Set; - return set; - } + // Copy constructor. + if (object instanceof Set) object.each(function(value) { set.add(value); }); - function keys(map) { - var keys = []; - for (var key in map) keys.push(key); - return keys; + // Otherwise, assume it’s an array. + else if (object) { + var i = -1, n = object.length; + if (f == null) while (++i < n) set.add(object[i]); + else while (++i < n) set.add(f(object[i], i, object)); } - function values(map) { - var values = []; - for (var key in map) values.push(map[key]); - return values; - } + return set; +} - function entries(map) { - var entries = []; - for (var key in map) entries.push({key: key, value: map[key]}); - return entries; - } +var keys = function(map) { + var keys = []; + for (var key in map) keys.push(key); + return keys; +} - function uniform(min, max) { - min = min == null ? 0 : +min; - max = max == null ? 1 : +max; - if (arguments.length === 1) max = min, min = 0; - else max -= min; - return function() { - return Math.random() * max + min; - }; - } +var values = function(map) { + var values = []; + for (var key in map) values.push(map[key]); + return values; +} - function normal(mu, sigma) { - var x, r; - mu = mu == null ? 0 : +mu; - sigma = sigma == null ? 1 : +sigma; - return function() { - var y; +var entries = function(map) { + var entries = []; + for (var key in map) entries.push({key: key, value: map[key]}); + return entries; +} - // If available, use the second previously-generated uniform random. - if (x != null) y = x, x = null; +var uniform = function(min, max) { + min = min == null ? 0 : +min; + max = max == null ? 1 : +max; + if (arguments.length === 1) max = min, min = 0; + else max -= min; + return function() { + return Math.random() * max + min; + }; +} - // Otherwise, generate a new x and y. - else do { - x = Math.random() * 2 - 1; - y = Math.random() * 2 - 1; - r = x * x + y * y; - } while (!r || r > 1); +var normal = function(mu, sigma) { + var x, r; + mu = mu == null ? 0 : +mu; + sigma = sigma == null ? 1 : +sigma; + return function() { + var y; - return mu + sigma * y * Math.sqrt(-2 * Math.log(r) / r); - }; - } + // If available, use the second previously-generated uniform random. + if (x != null) y = x, x = null; - function logNormal() { - var randomNormal = normal.apply(this, arguments); - return function() { - return Math.exp(randomNormal()); - }; - } + // Otherwise, generate a new x and y. + else do { + x = Math.random() * 2 - 1; + y = Math.random() * 2 - 1; + r = x * x + y * y; + } while (!r || r > 1); - function irwinHall(n) { - return function() { - for (var sum = 0, i = 0; i < n; ++i) sum += Math.random(); - return sum; - }; - } + return mu + sigma * y * Math.sqrt(-2 * Math.log(r) / r); + }; +} - function bates(n) { - var randomIrwinHall = irwinHall(n); - return function() { - return randomIrwinHall() / n; - }; - } +var logNormal = function() { + var randomNormal = normal.apply(this, arguments); + return function() { + return Math.exp(randomNormal()); + }; +} - function exponential(lambda) { - return function() { - return -Math.log(1 - Math.random()) / lambda; - }; - } +var irwinHall = function(n) { + return function() { + for (var sum = 0, i = 0; i < n; ++i) sum += Math.random(); + return sum; + }; +} - function linear(t) { - return +t; - } +var bates = function(n) { + var randomIrwinHall = irwinHall(n); + return function() { + return randomIrwinHall() / n; + }; +} - function quadIn(t) { - return t * t; - } +var exponential = function(lambda) { + return function() { + return -Math.log(1 - Math.random()) / lambda; + }; +} - function quadOut(t) { - return t * (2 - t); - } +function linear(t) { + return +t; +} - function quadInOut(t) { - return ((t *= 2) <= 1 ? t * t : --t * (2 - t) + 1) / 2; - } +function quadIn(t) { + return t * t; +} - function cubicIn(t) { - return t * t * t; - } +function quadOut(t) { + return t * (2 - t); +} - function cubicOut(t) { - return --t * t * t + 1; - } +function quadInOut(t) { + return ((t *= 2) <= 1 ? t * t : --t * (2 - t) + 1) / 2; +} - function easeCubicInOut(t) { - return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2; - } +function cubicIn(t) { + return t * t * t; +} - var exponent = 3; +function cubicOut(t) { + return --t * t * t + 1; +} - var polyIn = (function custom(e) { - e = +e; +function cubicInOut(t) { + return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2; +} - function polyIn(t) { - return Math.pow(t, e); - } +var exponent = 3; - polyIn.exponent = custom; +var polyIn = (function custom(e) { + e = +e; - return polyIn; - })(exponent); + function polyIn(t) { + return Math.pow(t, e); + } - var polyOut = (function custom(e) { - e = +e; + polyIn.exponent = custom; - function polyOut(t) { - return 1 - Math.pow(1 - t, e); - } + return polyIn; +})(exponent); - polyOut.exponent = custom; +var polyOut = (function custom(e) { + e = +e; - return polyOut; - })(exponent); + function polyOut(t) { + return 1 - Math.pow(1 - t, e); + } - var polyInOut = (function custom(e) { - e = +e; + polyOut.exponent = custom; - function polyInOut(t) { - return ((t *= 2) <= 1 ? Math.pow(t, e) : 2 - Math.pow(2 - t, e)) / 2; - } + return polyOut; +})(exponent); - polyInOut.exponent = custom; +var polyInOut = (function custom(e) { + e = +e; - return polyInOut; - })(exponent); - - var pi = Math.PI; - var halfPi = pi / 2; - function sinIn(t) { - return 1 - Math.cos(t * halfPi); + function polyInOut(t) { + return ((t *= 2) <= 1 ? Math.pow(t, e) : 2 - Math.pow(2 - t, e)) / 2; } - function sinOut(t) { - return Math.sin(t * halfPi); - } + polyInOut.exponent = custom; - function sinInOut(t) { - return (1 - Math.cos(pi * t)) / 2; - } + return polyInOut; +})(exponent); - function expIn(t) { - return Math.pow(2, 10 * t - 10); - } +var pi = Math.PI; +var halfPi = pi / 2; - function expOut(t) { - return 1 - Math.pow(2, -10 * t); - } +function sinIn(t) { + return 1 - Math.cos(t * halfPi); +} - function expInOut(t) { - return ((t *= 2) <= 1 ? Math.pow(2, 10 * t - 10) : 2 - Math.pow(2, 10 - 10 * t)) / 2; - } +function sinOut(t) { + return Math.sin(t * halfPi); +} - function circleIn(t) { - return 1 - Math.sqrt(1 - t * t); - } +function sinInOut(t) { + return (1 - Math.cos(pi * t)) / 2; +} - function circleOut(t) { - return Math.sqrt(1 - --t * t); - } +function expIn(t) { + return Math.pow(2, 10 * t - 10); +} - function circleInOut(t) { - return ((t *= 2) <= 1 ? 1 - Math.sqrt(1 - t * t) : Math.sqrt(1 - (t -= 2) * t) + 1) / 2; - } +function expOut(t) { + return 1 - Math.pow(2, -10 * t); +} - var b1 = 4 / 11; - var b2 = 6 / 11; - var b3 = 8 / 11; - var b4 = 3 / 4; - var b5 = 9 / 11; - var b6 = 10 / 11; - var b7 = 15 / 16; - var b8 = 21 / 22; - var b9 = 63 / 64; - var b0 = 1 / b1 / b1; - function bounceIn(t) { - return 1 - bounceOut(1 - t); - } +function expInOut(t) { + return ((t *= 2) <= 1 ? Math.pow(2, 10 * t - 10) : 2 - Math.pow(2, 10 - 10 * t)) / 2; +} - function bounceOut(t) { - return (t = +t) < b1 ? b0 * t * t : t < b3 ? b0 * (t -= b2) * t + b4 : t < b6 ? b0 * (t -= b5) * t + b7 : b0 * (t -= b8) * t + b9; - } +function circleIn(t) { + return 1 - Math.sqrt(1 - t * t); +} - function bounceInOut(t) { - return ((t *= 2) <= 1 ? 1 - bounceOut(1 - t) : bounceOut(t - 1) + 1) / 2; - } +function circleOut(t) { + return Math.sqrt(1 - --t * t); +} - var overshoot = 1.70158; +function circleInOut(t) { + return ((t *= 2) <= 1 ? 1 - Math.sqrt(1 - t * t) : Math.sqrt(1 - (t -= 2) * t) + 1) / 2; +} - var backIn = (function custom(s) { - s = +s; +var b1 = 4 / 11; +var b2 = 6 / 11; +var b3 = 8 / 11; +var b4 = 3 / 4; +var b5 = 9 / 11; +var b6 = 10 / 11; +var b7 = 15 / 16; +var b8 = 21 / 22; +var b9 = 63 / 64; +var b0 = 1 / b1 / b1; - function backIn(t) { - return t * t * ((s + 1) * t - s); - } +function bounceIn(t) { + return 1 - bounceOut(1 - t); +} - backIn.overshoot = custom; +function bounceOut(t) { + return (t = +t) < b1 ? b0 * t * t : t < b3 ? b0 * (t -= b2) * t + b4 : t < b6 ? b0 * (t -= b5) * t + b7 : b0 * (t -= b8) * t + b9; +} - return backIn; - })(overshoot); +function bounceInOut(t) { + return ((t *= 2) <= 1 ? 1 - bounceOut(1 - t) : bounceOut(t - 1) + 1) / 2; +} - var backOut = (function custom(s) { - s = +s; +var overshoot = 1.70158; - function backOut(t) { - return --t * t * ((s + 1) * t + s) + 1; - } +var backIn = (function custom(s) { + s = +s; - backOut.overshoot = custom; + function backIn(t) { + return t * t * ((s + 1) * t - s); + } - return backOut; - })(overshoot); + backIn.overshoot = custom; - var backInOut = (function custom(s) { - s = +s; + return backIn; +})(overshoot); - function backInOut(t) { - return ((t *= 2) < 1 ? t * t * ((s + 1) * t - s) : (t -= 2) * t * ((s + 1) * t + s) + 2) / 2; - } +var backOut = (function custom(s) { + s = +s; - backInOut.overshoot = custom; + function backOut(t) { + return --t * t * ((s + 1) * t + s) + 1; + } - return backInOut; - })(overshoot); + backOut.overshoot = custom; - var tau = 2 * Math.PI; - var amplitude = 1; - var period = 0.3; - var elasticIn = (function custom(a, p) { - var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); + return backOut; +})(overshoot); - function elasticIn(t) { - return a * Math.pow(2, 10 * --t) * Math.sin((s - t) / p); - } +var backInOut = (function custom(s) { + s = +s; - elasticIn.amplitude = function(a) { return custom(a, p * tau); }; - elasticIn.period = function(p) { return custom(a, p); }; + function backInOut(t) { + return ((t *= 2) < 1 ? t * t * ((s + 1) * t - s) : (t -= 2) * t * ((s + 1) * t + s) + 2) / 2; + } - return elasticIn; - })(amplitude, period); + backInOut.overshoot = custom; - var elasticOut = (function custom(a, p) { - var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); + return backInOut; +})(overshoot); - function elasticOut(t) { - return 1 - a * Math.pow(2, -10 * (t = +t)) * Math.sin((t + s) / p); - } +var tau = 2 * Math.PI; +var amplitude = 1; +var period = 0.3; - elasticOut.amplitude = function(a) { return custom(a, p * tau); }; - elasticOut.period = function(p) { return custom(a, p); }; +var elasticIn = (function custom(a, p) { + var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); - return elasticOut; - })(amplitude, period); + function elasticIn(t) { + return a * Math.pow(2, 10 * --t) * Math.sin((s - t) / p); + } - var elasticInOut = (function custom(a, p) { - var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); + elasticIn.amplitude = function(a) { return custom(a, p * tau); }; + elasticIn.period = function(p) { return custom(a, p); }; - function elasticInOut(t) { - return ((t = t * 2 - 1) < 0 - ? a * Math.pow(2, 10 * t) * Math.sin((s - t) / p) - : 2 - a * Math.pow(2, -10 * t) * Math.sin((s + t) / p)) / 2; - } + return elasticIn; +})(amplitude, period); - elasticInOut.amplitude = function(a) { return custom(a, p * tau); }; - elasticInOut.period = function(p) { return custom(a, p); }; +var elasticOut = (function custom(a, p) { + var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); - return elasticInOut; - })(amplitude, period); + function elasticOut(t) { + return 1 - a * Math.pow(2, -10 * (t = +t)) * Math.sin((t + s) / p); + } - function area(polygon) { - var i = -1, - n = polygon.length, - a, - b = polygon[n - 1], - area = 0; + elasticOut.amplitude = function(a) { return custom(a, p * tau); }; + elasticOut.period = function(p) { return custom(a, p); }; - while (++i < n) { - a = b; - b = polygon[i]; - area += a[1] * b[0] - a[0] * b[1]; - } + return elasticOut; +})(amplitude, period); - return area / 2; +var elasticInOut = (function custom(a, p) { + var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); + + function elasticInOut(t) { + return ((t = t * 2 - 1) < 0 + ? a * Math.pow(2, 10 * t) * Math.sin((s - t) / p) + : 2 - a * Math.pow(2, -10 * t) * Math.sin((s + t) / p)) / 2; } - function centroid(polygon) { - var i = -1, - n = polygon.length, - x = 0, - y = 0, - a, - b = polygon[n - 1], - c, - k = 0; + elasticInOut.amplitude = function(a) { return custom(a, p * tau); }; + elasticInOut.period = function(p) { return custom(a, p); }; - while (++i < n) { - a = b; - b = polygon[i]; - k += c = a[0] * b[1] - b[0] * a[1]; - x += (a[0] + b[0]) * c; - y += (a[1] + b[1]) * c; - } + return elasticInOut; +})(amplitude, period); - return k *= 3, [x / k, y / k]; - } +var area = function(polygon) { + var i = -1, + n = polygon.length, + a, + b = polygon[n - 1], + area = 0; - // Returns the 2D cross product of AB and AC vectors, i.e., the z-component of - // the 3D cross product in a quadrant I Cartesian coordinate system (+x is - // right, +y is up). Returns a positive value if ABC is counter-clockwise, - // negative if clockwise, and zero if the points are collinear. - function cross(a, b, c) { - return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]); + while (++i < n) { + a = b; + b = polygon[i]; + area += a[1] * b[0] - a[0] * b[1]; } - function lexicographicOrder(a, b) { - return a[0] - b[0] || a[1] - b[1]; + return area / 2; +} + +var centroid = function(polygon) { + var i = -1, + n = polygon.length, + x = 0, + y = 0, + a, + b = polygon[n - 1], + c, + k = 0; + + while (++i < n) { + a = b; + b = polygon[i]; + k += c = a[0] * b[1] - b[0] * a[1]; + x += (a[0] + b[0]) * c; + y += (a[1] + b[1]) * c; } - // Computes the upper convex hull per the monotone chain algorithm. - // Assumes points.length >= 3, is sorted by x, unique in y. - // Returns an array of indices into points in left-to-right order. - function computeUpperHullIndexes(points) { - var n = points.length, - indexes = [0, 1], - size = 2; + return k *= 3, [x / k, y / k]; +} - for (var i = 2; i < n; ++i) { - while (size > 1 && cross(points[indexes[size - 2]], points[indexes[size - 1]], points[i]) <= 0) --size; - indexes[size++] = i; - } +// Returns the 2D cross product of AB and AC vectors, i.e., the z-component of +// the 3D cross product in a quadrant I Cartesian coordinate system (+x is +// right, +y is up). Returns a positive value if ABC is counter-clockwise, +// negative if clockwise, and zero if the points are collinear. +var cross = function(a, b, c) { + return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]); +} - return indexes.slice(0, size); // remove popped points +function lexicographicOrder(a, b) { + return a[0] - b[0] || a[1] - b[1]; +} + +// Computes the upper convex hull per the monotone chain algorithm. +// Assumes points.length >= 3, is sorted by x, unique in y. +// Returns an array of indices into points in left-to-right order. +function computeUpperHullIndexes(points) { + var n = points.length, + indexes = [0, 1], + size = 2; + + for (var i = 2; i < n; ++i) { + while (size > 1 && cross(points[indexes[size - 2]], points[indexes[size - 1]], points[i]) <= 0) --size; + indexes[size++] = i; } - function hull(points) { - if ((n = points.length) < 3) return null; + return indexes.slice(0, size); // remove popped points +} - var i, - n, - sortedPoints = new Array(n), - flippedPoints = new Array(n); +var hull = function(points) { + if ((n = points.length) < 3) return null; - for (i = 0; i < n; ++i) sortedPoints[i] = [+points[i][0], +points[i][1], i]; - sortedPoints.sort(lexicographicOrder); - for (i = 0; i < n; ++i) flippedPoints[i] = [sortedPoints[i][0], -sortedPoints[i][1]]; + var i, + n, + sortedPoints = new Array(n), + flippedPoints = new Array(n); - var upperIndexes = computeUpperHullIndexes(sortedPoints), - lowerIndexes = computeUpperHullIndexes(flippedPoints); + for (i = 0; i < n; ++i) sortedPoints[i] = [+points[i][0], +points[i][1], i]; + sortedPoints.sort(lexicographicOrder); + for (i = 0; i < n; ++i) flippedPoints[i] = [sortedPoints[i][0], -sortedPoints[i][1]]; - // Construct the hull polygon, removing possible duplicate endpoints. - var skipLeft = lowerIndexes[0] === upperIndexes[0], - skipRight = lowerIndexes[lowerIndexes.length - 1] === upperIndexes[upperIndexes.length - 1], - hull = []; + var upperIndexes = computeUpperHullIndexes(sortedPoints), + lowerIndexes = computeUpperHullIndexes(flippedPoints); - // Add upper hull in right-to-l order. - // Then add lower hull in left-to-right order. - for (i = upperIndexes.length - 1; i >= 0; --i) hull.push(points[sortedPoints[upperIndexes[i]][2]]); - for (i = +skipLeft; i < lowerIndexes.length - skipRight; ++i) hull.push(points[sortedPoints[lowerIndexes[i]][2]]); + // Construct the hull polygon, removing possible duplicate endpoints. + var skipLeft = lowerIndexes[0] === upperIndexes[0], + skipRight = lowerIndexes[lowerIndexes.length - 1] === upperIndexes[upperIndexes.length - 1], + hull = []; - return hull; - } + // Add upper hull in right-to-l order. + // Then add lower hull in left-to-right order. + for (i = upperIndexes.length - 1; i >= 0; --i) hull.push(points[sortedPoints[upperIndexes[i]][2]]); + for (i = +skipLeft; i < lowerIndexes.length - skipRight; ++i) hull.push(points[sortedPoints[lowerIndexes[i]][2]]); - function contains(polygon, point) { - var n = polygon.length, - p = polygon[n - 1], - x = point[0], y = point[1], - x0 = p[0], y0 = p[1], - x1, y1, - inside = false; + return hull; +} - for (var i = 0; i < n; ++i) { - p = polygon[i], x1 = p[0], y1 = p[1]; - if (((y1 > y) !== (y0 > y)) && (x < (x0 - x1) * (y - y1) / (y0 - y1) + x1)) inside = !inside; - x0 = x1, y0 = y1; - } +var contains = function(polygon, point) { + var n = polygon.length, + p = polygon[n - 1], + x = point[0], y = point[1], + x0 = p[0], y0 = p[1], + x1, y1, + inside = false; - return inside; + for (var i = 0; i < n; ++i) { + p = polygon[i], x1 = p[0], y1 = p[1]; + if (((y1 > y) !== (y0 > y)) && (x < (x0 - x1) * (y - y1) / (y0 - y1) + x1)) inside = !inside; + x0 = x1, y0 = y1; } - function length$1(polygon) { - var i = -1, - n = polygon.length, - b = polygon[n - 1], - xa, - ya, - xb = b[0], - yb = b[1], - perimeter = 0; + return inside; +} - while (++i < n) { - xa = xb; - ya = yb; - b = polygon[i]; - xb = b[0]; - yb = b[1]; - xa -= xb; - ya -= yb; - perimeter += Math.sqrt(xa * xa + ya * ya); - } +var length$1 = function(polygon) { + var i = -1, + n = polygon.length, + b = polygon[n - 1], + xa, + ya, + xb = b[0], + yb = b[1], + perimeter = 0; - return perimeter; + while (++i < n) { + xa = xb; + ya = yb; + b = polygon[i]; + xb = b[0]; + yb = b[1]; + xa -= xb; + ya -= yb; + perimeter += Math.sqrt(xa * xa + ya * ya); } -var pi$1 = Math.PI; -var tau$1 = 2 * pi$1; - var epsilon = 1e-6; - var tauEpsilon = tau$1 - epsilon; - function Path() { - this._x0 = this._y0 = // start of current subpath - this._x1 = this._y1 = null; // end of current subpath - this._ = []; - } + return perimeter; +} - function path() { - return new Path; - } +var pi$1 = Math.PI; +var tau$1 = 2 * pi$1; +var epsilon = 1e-6; +var tauEpsilon = tau$1 - epsilon; - Path.prototype = path.prototype = { - constructor: Path, - moveTo: function(x, y) { - this._.push("M", this._x0 = this._x1 = +x, ",", this._y0 = this._y1 = +y); - }, - closePath: function() { - if (this._x1 !== null) { - this._x1 = this._x0, this._y1 = this._y0; - this._.push("Z"); - } - }, - lineTo: function(x, y) { - this._.push("L", this._x1 = +x, ",", this._y1 = +y); - }, - quadraticCurveTo: function(x1, y1, x, y) { - this._.push("Q", +x1, ",", +y1, ",", this._x1 = +x, ",", this._y1 = +y); - }, - bezierCurveTo: function(x1, y1, x2, y2, x, y) { - this._.push("C", +x1, ",", +y1, ",", +x2, ",", +y2, ",", this._x1 = +x, ",", this._y1 = +y); - }, - arcTo: function(x1, y1, x2, y2, r) { - x1 = +x1, y1 = +y1, x2 = +x2, y2 = +y2, r = +r; - var x0 = this._x1, - y0 = this._y1, - x21 = x2 - x1, - y21 = y2 - y1, - x01 = x0 - x1, - y01 = y0 - y1, - l01_2 = x01 * x01 + y01 * y01; +function Path() { + this._x0 = this._y0 = // start of current subpath + this._x1 = this._y1 = null; // end of current subpath + this._ = []; +} - // Is the radius negative? Error. - if (r < 0) throw new Error("negative radius: " + r); +function path() { + return new Path; +} - // Is this path empty? Move to (x1,y1). - if (this._x1 === null) { - this._.push( - "M", this._x1 = x1, ",", this._y1 = y1 - ); - } +Path.prototype = path.prototype = { + constructor: Path, + moveTo: function(x, y) { + this._.push("M", this._x0 = this._x1 = +x, ",", this._y0 = this._y1 = +y); + }, + closePath: function() { + if (this._x1 !== null) { + this._x1 = this._x0, this._y1 = this._y0; + this._.push("Z"); + } + }, + lineTo: function(x, y) { + this._.push("L", this._x1 = +x, ",", this._y1 = +y); + }, + quadraticCurveTo: function(x1, y1, x, y) { + this._.push("Q", +x1, ",", +y1, ",", this._x1 = +x, ",", this._y1 = +y); + }, + bezierCurveTo: function(x1, y1, x2, y2, x, y) { + this._.push("C", +x1, ",", +y1, ",", +x2, ",", +y2, ",", this._x1 = +x, ",", this._y1 = +y); + }, + arcTo: function(x1, y1, x2, y2, r) { + x1 = +x1, y1 = +y1, x2 = +x2, y2 = +y2, r = +r; + var x0 = this._x1, + y0 = this._y1, + x21 = x2 - x1, + y21 = y2 - y1, + x01 = x0 - x1, + y01 = y0 - y1, + l01_2 = x01 * x01 + y01 * y01; - // Or, is (x1,y1) coincident with (x0,y0)? Do nothing. - else if (!(l01_2 > epsilon)); + // Is the radius negative? Error. + if (r < 0) throw new Error("negative radius: " + r); - // Or, are (x0,y0), (x1,y1) and (x2,y2) collinear? - // Equivalently, is (x1,y1) coincident with (x2,y2)? - // Or, is the radius zero? Line to (x1,y1). - else if (!(Math.abs(y01 * x21 - y21 * x01) > epsilon) || !r) { - this._.push( - "L", this._x1 = x1, ",", this._y1 = y1 - ); - } + // Is this path empty? Move to (x1,y1). + if (this._x1 === null) { + this._.push( + "M", this._x1 = x1, ",", this._y1 = y1 + ); + } - // Otherwise, draw an arc! - else { - var x20 = x2 - x0, - y20 = y2 - y0, - l21_2 = x21 * x21 + y21 * y21, - l20_2 = x20 * x20 + y20 * y20, - l21 = Math.sqrt(l21_2), - l01 = Math.sqrt(l01_2), - l = r * Math.tan((pi$1 - Math.acos((l21_2 + l01_2 - l20_2) / (2 * l21 * l01))) / 2), - t01 = l / l01, - t21 = l / l21; + // Or, is (x1,y1) coincident with (x0,y0)? Do nothing. + else if (!(l01_2 > epsilon)) {} - // If the start tangent is not coincident with (x0,y0), line to. - if (Math.abs(t01 - 1) > epsilon) { - this._.push( - "L", x1 + t01 * x01, ",", y1 + t01 * y01 - ); - } + // Or, are (x0,y0), (x1,y1) and (x2,y2) collinear? + // Equivalently, is (x1,y1) coincident with (x2,y2)? + // Or, is the radius zero? Line to (x1,y1). + else if (!(Math.abs(y01 * x21 - y21 * x01) > epsilon) || !r) { + this._.push( + "L", this._x1 = x1, ",", this._y1 = y1 + ); + } + // Otherwise, draw an arc! + else { + var x20 = x2 - x0, + y20 = y2 - y0, + l21_2 = x21 * x21 + y21 * y21, + l20_2 = x20 * x20 + y20 * y20, + l21 = Math.sqrt(l21_2), + l01 = Math.sqrt(l01_2), + l = r * Math.tan((pi$1 - Math.acos((l21_2 + l01_2 - l20_2) / (2 * l21 * l01))) / 2), + t01 = l / l01, + t21 = l / l21; + + // If the start tangent is not coincident with (x0,y0), line to. + if (Math.abs(t01 - 1) > epsilon) { this._.push( - "A", r, ",", r, ",0,0,", +(y01 * x20 > x01 * y20), ",", this._x1 = x1 + t21 * x21, ",", this._y1 = y1 + t21 * y21 + "L", x1 + t01 * x01, ",", y1 + t01 * y01 ); } - }, - arc: function(x, y, r, a0, a1, ccw) { - x = +x, y = +y, r = +r; - var dx = r * Math.cos(a0), - dy = r * Math.sin(a0), - x0 = x + dx, - y0 = y + dy, - cw = 1 ^ ccw, - da = ccw ? a0 - a1 : a1 - a0; - // Is the radius negative? Error. - if (r < 0) throw new Error("negative radius: " + r); + this._.push( + "A", r, ",", r, ",0,0,", +(y01 * x20 > x01 * y20), ",", this._x1 = x1 + t21 * x21, ",", this._y1 = y1 + t21 * y21 + ); + } + }, + arc: function(x, y, r, a0, a1, ccw) { + x = +x, y = +y, r = +r; + var dx = r * Math.cos(a0), + dy = r * Math.sin(a0), + x0 = x + dx, + y0 = y + dy, + cw = 1 ^ ccw, + da = ccw ? a0 - a1 : a1 - a0; - // Is this path empty? Move to (x0,y0). - if (this._x1 === null) { - this._.push( - "M", x0, ",", y0 - ); - } + // Is the radius negative? Error. + if (r < 0) throw new Error("negative radius: " + r); - // Or, is (x0,y0) not coincident with the previous point? Line to (x0,y0). - else if (Math.abs(this._x1 - x0) > epsilon || Math.abs(this._y1 - y0) > epsilon) { - this._.push( - "L", x0, ",", y0 - ); - } + // Is this path empty? Move to (x0,y0). + if (this._x1 === null) { + this._.push( + "M", x0, ",", y0 + ); + } - // Is this arc empty? We’re done. - if (!r) return; + // Or, is (x0,y0) not coincident with the previous point? Line to (x0,y0). + else if (Math.abs(this._x1 - x0) > epsilon || Math.abs(this._y1 - y0) > epsilon) { + this._.push( + "L", x0, ",", y0 + ); + } - // Is this a complete circle? Draw two arcs to complete the circle. - if (da > tauEpsilon) { - this._.push( - "A", r, ",", r, ",0,1,", cw, ",", x - dx, ",", y - dy, - "A", r, ",", r, ",0,1,", cw, ",", this._x1 = x0, ",", this._y1 = y0 - ); - } + // Is this arc empty? We’re done. + if (!r) return; - // Otherwise, draw an arc! - else { - if (da < 0) da = da % tau$1 + tau$1; - this._.push( - "A", r, ",", r, ",0,", +(da >= pi$1), ",", cw, ",", this._x1 = x + r * Math.cos(a1), ",", this._y1 = y + r * Math.sin(a1) - ); - } - }, - rect: function(x, y, w, h) { - this._.push("M", this._x0 = this._x1 = +x, ",", this._y0 = this._y1 = +y, "h", +w, "v", +h, "h", -w, "Z"); - }, - toString: function() { - return this._.join(""); + // Is this a complete circle? Draw two arcs to complete the circle. + if (da > tauEpsilon) { + this._.push( + "A", r, ",", r, ",0,1,", cw, ",", x - dx, ",", y - dy, + "A", r, ",", r, ",0,1,", cw, ",", this._x1 = x0, ",", this._y1 = y0 + ); } - }; - function tree_add(d) { - var x = +this._x.call(null, d), - y = +this._y.call(null, d); - return add(this.cover(x, y), x, y, d); + // Otherwise, draw an arc! + else { + if (da < 0) da = da % tau$1 + tau$1; + this._.push( + "A", r, ",", r, ",0,", +(da >= pi$1), ",", cw, ",", this._x1 = x + r * Math.cos(a1), ",", this._y1 = y + r * Math.sin(a1) + ); + } + }, + rect: function(x, y, w, h) { + this._.push("M", this._x0 = this._x1 = +x, ",", this._y0 = this._y1 = +y, "h", +w, "v", +h, "h", -w, "Z"); + }, + toString: function() { + return this._.join(""); } +}; - function add(tree, x, y, d) { - if (isNaN(x) || isNaN(y)) return tree; // ignore invalid points +var tree_add = function(d) { + var x = +this._x.call(null, d), + y = +this._y.call(null, d); + return add(this.cover(x, y), x, y, d); +} - var parent, - node = tree._root, - leaf = {data: d}, - x0 = tree._x0, - y0 = tree._y0, - x1 = tree._x1, - y1 = tree._y1, - xm, - ym, - xp, - yp, - right, - bottom, - i, - j; +function add(tree, x, y, d) { + if (isNaN(x) || isNaN(y)) return tree; // ignore invalid points - // If the tree is empty, initialize the root as a leaf. - if (!node) return tree._root = leaf, tree; + var parent, + node = tree._root, + leaf = {data: d}, + x0 = tree._x0, + y0 = tree._y0, + x1 = tree._x1, + y1 = tree._y1, + xm, + ym, + xp, + yp, + right, + bottom, + i, + j; - // Find the existing leaf for the new point, or add it. - while (node.length) { - if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; - if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; - if (parent = node, !(node = node[i = bottom << 1 | right])) return parent[i] = leaf, tree; - } + // If the tree is empty, initialize the root as a leaf. + if (!node) return tree._root = leaf, tree; - // Is the new point is exactly coincident with the existing point? - xp = +tree._x.call(null, node.data); - yp = +tree._y.call(null, node.data); - if (x === xp && y === yp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree; - - // Otherwise, split the leaf node until the old and new point are separated. - do { - parent = parent ? parent[i] = new Array(4) : tree._root = new Array(4); - if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; - if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; - } while ((i = bottom << 1 | right) === (j = (yp >= ym) << 1 | (xp >= xm))); - return parent[j] = node, parent[i] = leaf, tree; + // Find the existing leaf for the new point, or add it. + while (node.length) { + if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; + if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; + if (parent = node, !(node = node[i = bottom << 1 | right])) return parent[i] = leaf, tree; } - function addAll(data) { - var d, i, n = data.length, - x, - y, - xz = new Array(n), - yz = new Array(n), - x0 = Infinity, - y0 = Infinity, - x1 = -Infinity, - y1 = -Infinity; + // Is the new point is exactly coincident with the existing point? + xp = +tree._x.call(null, node.data); + yp = +tree._y.call(null, node.data); + if (x === xp && y === yp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree; - // Compute the points and their extent. - for (i = 0; i < n; ++i) { - if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d))) continue; - xz[i] = x; - yz[i] = y; - if (x < x0) x0 = x; - if (x > x1) x1 = x; - if (y < y0) y0 = y; - if (y > y1) y1 = y; - } + // Otherwise, split the leaf node until the old and new point are separated. + do { + parent = parent ? parent[i] = new Array(4) : tree._root = new Array(4); + if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; + if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; + } while ((i = bottom << 1 | right) === (j = (yp >= ym) << 1 | (xp >= xm))); + return parent[j] = node, parent[i] = leaf, tree; +} - // If there were no (valid) points, inherit the existing extent. - if (x1 < x0) x0 = this._x0, x1 = this._x1; - if (y1 < y0) y0 = this._y0, y1 = this._y1; +function addAll(data) { + var d, i, n = data.length, + x, + y, + xz = new Array(n), + yz = new Array(n), + x0 = Infinity, + y0 = Infinity, + x1 = -Infinity, + y1 = -Infinity; - // Expand the tree to cover the new points. - this.cover(x0, y0).cover(x1, y1); + // Compute the points and their extent. + for (i = 0; i < n; ++i) { + if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d))) continue; + xz[i] = x; + yz[i] = y; + if (x < x0) x0 = x; + if (x > x1) x1 = x; + if (y < y0) y0 = y; + if (y > y1) y1 = y; + } - // Add the new points. - for (i = 0; i < n; ++i) { - add(this, xz[i], yz[i], data[i]); - } + // If there were no (valid) points, inherit the existing extent. + if (x1 < x0) x0 = this._x0, x1 = this._x1; + if (y1 < y0) y0 = this._y0, y1 = this._y1; - return this; + // Expand the tree to cover the new points. + this.cover(x0, y0).cover(x1, y1); + + // Add the new points. + for (i = 0; i < n; ++i) { + add(this, xz[i], yz[i], data[i]); } - function tree_cover(x, y) { - if (isNaN(x = +x) || isNaN(y = +y)) return this; // ignore invalid points + return this; +} - var x0 = this._x0, - y0 = this._y0, - x1 = this._x1, - y1 = this._y1; +var tree_cover = function(x, y) { + if (isNaN(x = +x) || isNaN(y = +y)) return this; // ignore invalid points - // If the quadtree has no extent, initialize them. - // Integer extent are necessary so that if we later double the extent, - // the existing quadrant boundaries don’t change due to floating point error! - if (isNaN(x0)) { - x1 = (x0 = Math.floor(x)) + 1; - y1 = (y0 = Math.floor(y)) + 1; - } + var x0 = this._x0, + y0 = this._y0, + x1 = this._x1, + y1 = this._y1; - // Otherwise, double repeatedly to cover. - else if (x0 > x || x > x1 || y0 > y || y > y1) { - var z = x1 - x0, - node = this._root, - parent, - i; + // If the quadtree has no extent, initialize them. + // Integer extent are necessary so that if we later double the extent, + // the existing quadrant boundaries don’t change due to floating point error! + if (isNaN(x0)) { + x1 = (x0 = Math.floor(x)) + 1; + y1 = (y0 = Math.floor(y)) + 1; + } - switch (i = (y < (y0 + y1) / 2) << 1 | (x < (x0 + x1) / 2)) { - case 0: { - do parent = new Array(4), parent[i] = node, node = parent; - while (z *= 2, x1 = x0 + z, y1 = y0 + z, x > x1 || y > y1); - break; - } - case 1: { - do parent = new Array(4), parent[i] = node, node = parent; - while (z *= 2, x0 = x1 - z, y1 = y0 + z, x0 > x || y > y1); - break; - } - case 2: { - do parent = new Array(4), parent[i] = node, node = parent; - while (z *= 2, x1 = x0 + z, y0 = y1 - z, x > x1 || y0 > y); - break; - } - case 3: { - do parent = new Array(4), parent[i] = node, node = parent; - while (z *= 2, x0 = x1 - z, y0 = y1 - z, x0 > x || y0 > y); - break; - } - } + // Otherwise, double repeatedly to cover. + else if (x0 > x || x > x1 || y0 > y || y > y1) { + var z = x1 - x0, + node = this._root, + parent, + i; - if (this._root && this._root.length) this._root = node; + switch (i = (y < (y0 + y1) / 2) << 1 | (x < (x0 + x1) / 2)) { + case 0: { + do parent = new Array(4), parent[i] = node, node = parent; + while (z *= 2, x1 = x0 + z, y1 = y0 + z, x > x1 || y > y1); + break; + } + case 1: { + do parent = new Array(4), parent[i] = node, node = parent; + while (z *= 2, x0 = x1 - z, y1 = y0 + z, x0 > x || y > y1); + break; + } + case 2: { + do parent = new Array(4), parent[i] = node, node = parent; + while (z *= 2, x1 = x0 + z, y0 = y1 - z, x > x1 || y0 > y); + break; + } + case 3: { + do parent = new Array(4), parent[i] = node, node = parent; + while (z *= 2, x0 = x1 - z, y0 = y1 - z, x0 > x || y0 > y); + break; + } } - // If the quadtree covers the point already, just return. - else return this; - - this._x0 = x0; - this._y0 = y0; - this._x1 = x1; - this._y1 = y1; - return this; + if (this._root && this._root.length) this._root = node; } - function tree_data() { - var data = []; - this.visit(function(node) { - if (!node.length) do data.push(node.data); while (node = node.next) - }); - return data; - } + // If the quadtree covers the point already, just return. + else return this; - function tree_extent(_) { - return arguments.length - ? this.cover(+_[0][0], +_[0][1]).cover(+_[1][0], +_[1][1]) - : isNaN(this._x0) ? undefined : [[this._x0, this._y0], [this._x1, this._y1]]; - } + this._x0 = x0; + this._y0 = y0; + this._x1 = x1; + this._y1 = y1; + return this; +} - function Quad(node, x0, y0, x1, y1) { - this.node = node; - this.x0 = x0; - this.y0 = y0; - this.x1 = x1; - this.y1 = y1; - } +var tree_data = function() { + var data = []; + this.visit(function(node) { + if (!node.length) do data.push(node.data); while (node = node.next) + }); + return data; +} - function tree_find(x, y, radius) { - var data, - x0 = this._x0, - y0 = this._y0, - x1, - y1, - x2, - y2, - x3 = this._x1, - y3 = this._y1, - quads = [], - node = this._root, - q, - i; +var tree_extent = function(_) { + return arguments.length + ? this.cover(+_[0][0], +_[0][1]).cover(+_[1][0], +_[1][1]) + : isNaN(this._x0) ? undefined : [[this._x0, this._y0], [this._x1, this._y1]]; +} - if (node) quads.push(new Quad(node, x0, y0, x3, y3)); - if (radius == null) radius = Infinity; - else { - x0 = x - radius, y0 = y - radius; - x3 = x + radius, y3 = y + radius; - radius *= radius; - } +var Quad = function(node, x0, y0, x1, y1) { + this.node = node; + this.x0 = x0; + this.y0 = y0; + this.x1 = x1; + this.y1 = y1; +} - while (q = quads.pop()) { +var tree_find = function(x, y, radius) { + var data, + x0 = this._x0, + y0 = this._y0, + x1, + y1, + x2, + y2, + x3 = this._x1, + y3 = this._y1, + quads = [], + node = this._root, + q, + i; - // Stop searching if this quadrant can’t contain a closer node. - if (!(node = q.node) - || (x1 = q.x0) > x3 - || (y1 = q.y0) > y3 - || (x2 = q.x1) < x0 - || (y2 = q.y1) < y0) continue; + if (node) quads.push(new Quad(node, x0, y0, x3, y3)); + if (radius == null) radius = Infinity; + else { + x0 = x - radius, y0 = y - radius; + x3 = x + radius, y3 = y + radius; + radius *= radius; + } - // Bisect the current quadrant. - if (node.length) { - var xm = (x1 + x2) / 2, - ym = (y1 + y2) / 2; + while (q = quads.pop()) { - quads.push( - new Quad(node[3], xm, ym, x2, y2), - new Quad(node[2], x1, ym, xm, y2), - new Quad(node[1], xm, y1, x2, ym), - new Quad(node[0], x1, y1, xm, ym) - ); + // Stop searching if this quadrant can’t contain a closer node. + if (!(node = q.node) + || (x1 = q.x0) > x3 + || (y1 = q.y0) > y3 + || (x2 = q.x1) < x0 + || (y2 = q.y1) < y0) continue; - // Visit the closest quadrant first. - if (i = (y >= ym) << 1 | (x >= xm)) { - q = quads[quads.length - 1]; - quads[quads.length - 1] = quads[quads.length - 1 - i]; - quads[quads.length - 1 - i] = q; - } - } + // Bisect the current quadrant. + if (node.length) { + var xm = (x1 + x2) / 2, + ym = (y1 + y2) / 2; - // Visit this point. (Visiting coincident points isn’t necessary!) - else { - var dx = x - +this._x.call(null, node.data), - dy = y - +this._y.call(null, node.data), - d2 = dx * dx + dy * dy; - if (d2 < radius) { - var d = Math.sqrt(radius = d2); - x0 = x - d, y0 = y - d; - x3 = x + d, y3 = y + d; - data = node.data; - } + quads.push( + new Quad(node[3], xm, ym, x2, y2), + new Quad(node[2], x1, ym, xm, y2), + new Quad(node[1], xm, y1, x2, ym), + new Quad(node[0], x1, y1, xm, ym) + ); + + // Visit the closest quadrant first. + if (i = (y >= ym) << 1 | (x >= xm)) { + q = quads[quads.length - 1]; + quads[quads.length - 1] = quads[quads.length - 1 - i]; + quads[quads.length - 1 - i] = q; } } - return data; + // Visit this point. (Visiting coincident points isn’t necessary!) + else { + var dx = x - +this._x.call(null, node.data), + dy = y - +this._y.call(null, node.data), + d2 = dx * dx + dy * dy; + if (d2 < radius) { + var d = Math.sqrt(radius = d2); + x0 = x - d, y0 = y - d; + x3 = x + d, y3 = y + d; + data = node.data; + } + } } - function tree_remove(d) { - if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d))) return this; // ignore invalid points + return data; +} - var parent, - node = this._root, - retainer, - previous, - next, - x0 = this._x0, - y0 = this._y0, - x1 = this._x1, - y1 = this._y1, - x, - y, - xm, - ym, - right, - bottom, - i, - j; +var tree_remove = function(d) { + if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d))) return this; // ignore invalid points - // If the tree is empty, initialize the root as a leaf. - if (!node) return this; + var parent, + node = this._root, + retainer, + previous, + next, + x0 = this._x0, + y0 = this._y0, + x1 = this._x1, + y1 = this._y1, + x, + y, + xm, + ym, + right, + bottom, + i, + j; - // Find the leaf node for the point. - // While descending, also retain the deepest parent with a non-removed sibling. - if (node.length) while (true) { - if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; - if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; - if (!(parent = node, node = node[i = bottom << 1 | right])) return this; - if (!node.length) break; - if (parent[(i + 1) & 3] || parent[(i + 2) & 3] || parent[(i + 3) & 3]) retainer = parent, j = i; - } + // If the tree is empty, initialize the root as a leaf. + if (!node) return this; - // Find the point to remove. - while (node.data !== d) if (!(previous = node, node = node.next)) return this; - if (next = node.next) delete node.next; + // Find the leaf node for the point. + // While descending, also retain the deepest parent with a non-removed sibling. + if (node.length) while (true) { + if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; + if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; + if (!(parent = node, node = node[i = bottom << 1 | right])) return this; + if (!node.length) break; + if (parent[(i + 1) & 3] || parent[(i + 2) & 3] || parent[(i + 3) & 3]) retainer = parent, j = i; + } - // If there are multiple coincident points, remove just the point. - if (previous) return (next ? previous.next = next : delete previous.next), this; + // Find the point to remove. + while (node.data !== d) if (!(previous = node, node = node.next)) return this; + if (next = node.next) delete node.next; - // If this is the root point, remove it. - if (!parent) return this._root = next, this; + // If there are multiple coincident points, remove just the point. + if (previous) return (next ? previous.next = next : delete previous.next), this; - // Remove this leaf. - next ? parent[i] = next : delete parent[i]; + // If this is the root point, remove it. + if (!parent) return this._root = next, this; - // If the parent now contains exactly one leaf, collapse superfluous parents. - if ((node = parent[0] || parent[1] || parent[2] || parent[3]) - && node === (parent[3] || parent[2] || parent[1] || parent[0]) - && !node.length) { - if (retainer) retainer[j] = node; - else this._root = node; - } + // Remove this leaf. + next ? parent[i] = next : delete parent[i]; - return this; + // If the parent now contains exactly one leaf, collapse superfluous parents. + if ((node = parent[0] || parent[1] || parent[2] || parent[3]) + && node === (parent[3] || parent[2] || parent[1] || parent[0]) + && !node.length) { + if (retainer) retainer[j] = node; + else this._root = node; } - function removeAll(data) { - for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]); - return this; - } + return this; +} - function tree_root() { - return this._root; - } +function removeAll(data) { + for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]); + return this; +} - function tree_size() { - var size = 0; - this.visit(function(node) { - if (!node.length) do ++size; while (node = node.next) - }); - return size; - } +var tree_root = function() { + return this._root; +} - function tree_visit(callback) { - var quads = [], q, node = this._root, child, x0, y0, x1, y1; - if (node) quads.push(new Quad(node, this._x0, this._y0, this._x1, this._y1)); - while (q = quads.pop()) { - if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1) && node.length) { - var xm = (x0 + x1) / 2, ym = (y0 + y1) / 2; - if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1)); - if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1)); - if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym)); - if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym)); - } +var tree_size = function() { + var size = 0; + this.visit(function(node) { + if (!node.length) do ++size; while (node = node.next) + }); + return size; +} + +var tree_visit = function(callback) { + var quads = [], q, node = this._root, child, x0, y0, x1, y1; + if (node) quads.push(new Quad(node, this._x0, this._y0, this._x1, this._y1)); + while (q = quads.pop()) { + if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1) && node.length) { + var xm = (x0 + x1) / 2, ym = (y0 + y1) / 2; + if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1)); + if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1)); + if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym)); + if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym)); } - return this; } + return this; +} - function tree_visitAfter(callback) { - var quads = [], next = [], q; - if (this._root) quads.push(new Quad(this._root, this._x0, this._y0, this._x1, this._y1)); - while (q = quads.pop()) { - var node = q.node; - if (node.length) { - var child, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1, xm = (x0 + x1) / 2, ym = (y0 + y1) / 2; - if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym)); - if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym)); - if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1)); - if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1)); - } - next.push(q); +var tree_visitAfter = function(callback) { + var quads = [], next = [], q; + if (this._root) quads.push(new Quad(this._root, this._x0, this._y0, this._x1, this._y1)); + while (q = quads.pop()) { + var node = q.node; + if (node.length) { + var child, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1, xm = (x0 + x1) / 2, ym = (y0 + y1) / 2; + if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym)); + if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym)); + if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1)); + if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1)); } - while (q = next.pop()) { - callback(q.node, q.x0, q.y0, q.x1, q.y1); - } - return this; + next.push(q); } - - function defaultX(d) { - return d[0]; + while (q = next.pop()) { + callback(q.node, q.x0, q.y0, q.x1, q.y1); } + return this; +} - function tree_x(_) { - return arguments.length ? (this._x = _, this) : this._x; - } +function defaultX(d) { + return d[0]; +} - function defaultY(d) { - return d[1]; - } +var tree_x = function(_) { + return arguments.length ? (this._x = _, this) : this._x; +} - function tree_y(_) { - return arguments.length ? (this._y = _, this) : this._y; - } +function defaultY(d) { + return d[1]; +} - function quadtree(nodes, x, y) { - var tree = new Quadtree(x == null ? defaultX : x, y == null ? defaultY : y, NaN, NaN, NaN, NaN); - return nodes == null ? tree : tree.addAll(nodes); - } +var tree_y = function(_) { + return arguments.length ? (this._y = _, this) : this._y; +} - function Quadtree(x, y, x0, y0, x1, y1) { - this._x = x; - this._y = y; - this._x0 = x0; - this._y0 = y0; - this._x1 = x1; - this._y1 = y1; - this._root = undefined; - } +function quadtree(nodes, x, y) { + var tree = new Quadtree(x == null ? defaultX : x, y == null ? defaultY : y, NaN, NaN, NaN, NaN); + return nodes == null ? tree : tree.addAll(nodes); +} - function leaf_copy(leaf) { - var copy = {data: leaf.data}, next = copy; - while (leaf = leaf.next) next = next.next = {data: leaf.data}; - return copy; - } +function Quadtree(x, y, x0, y0, x1, y1) { + this._x = x; + this._y = y; + this._x0 = x0; + this._y0 = y0; + this._x1 = x1; + this._y1 = y1; + this._root = undefined; +} - var treeProto = quadtree.prototype = Quadtree.prototype; +function leaf_copy(leaf) { + var copy = {data: leaf.data}, next = copy; + while (leaf = leaf.next) next = next.next = {data: leaf.data}; + return copy; +} - treeProto.copy = function() { - var copy = new Quadtree(this._x, this._y, this._x0, this._y0, this._x1, this._y1), - node = this._root, - nodes, - child; +var treeProto = quadtree.prototype = Quadtree.prototype; - if (!node) return copy; +treeProto.copy = function() { + var copy = new Quadtree(this._x, this._y, this._x0, this._y0, this._x1, this._y1), + node = this._root, + nodes, + child; - if (!node.length) return copy._root = leaf_copy(node), copy; + if (!node) return copy; - nodes = [{source: node, target: copy._root = new Array(4)}]; - while (node = nodes.pop()) { - for (var i = 0; i < 4; ++i) { - if (child = node.source[i]) { - if (child.length) nodes.push({source: child, target: node.target[i] = new Array(4)}); - else node.target[i] = leaf_copy(child); - } + if (!node.length) return copy._root = leaf_copy(node), copy; + + nodes = [{source: node, target: copy._root = new Array(4)}]; + while (node = nodes.pop()) { + for (var i = 0; i < 4; ++i) { + if (child = node.source[i]) { + if (child.length) nodes.push({source: child, target: node.target[i] = new Array(4)}); + else node.target[i] = leaf_copy(child); } } + } - return copy; - }; + return copy; +}; - treeProto.add = tree_add; - treeProto.addAll = addAll; - treeProto.cover = tree_cover; - treeProto.data = tree_data; - treeProto.extent = tree_extent; - treeProto.find = tree_find; - treeProto.remove = tree_remove; - treeProto.removeAll = removeAll; - treeProto.root = tree_root; - treeProto.size = tree_size; - treeProto.visit = tree_visit; - treeProto.visitAfter = tree_visitAfter; - treeProto.x = tree_x; - treeProto.y = tree_y; +treeProto.add = tree_add; +treeProto.addAll = addAll; +treeProto.cover = tree_cover; +treeProto.data = tree_data; +treeProto.extent = tree_extent; +treeProto.find = tree_find; +treeProto.remove = tree_remove; +treeProto.removeAll = removeAll; +treeProto.root = tree_root; +treeProto.size = tree_size; +treeProto.visit = tree_visit; +treeProto.visitAfter = tree_visitAfter; +treeProto.x = tree_x; +treeProto.y = tree_y; - var slice$1 = [].slice; +var slice$1 = [].slice; - var noabort = {}; +var noabort = {}; - function Queue(size) { - if (!(size >= 1)) throw new Error; - this._size = size; - this._call = - this._error = null; - this._tasks = []; - this._data = []; - this._waiting = - this._active = - this._ended = - this._start = 0; // inside a synchronous task callback? - } +function Queue(size) { + if (!(size >= 1)) throw new Error; + this._size = size; + this._call = + this._error = null; + this._tasks = []; + this._data = []; + this._waiting = + this._active = + this._ended = + this._start = 0; // inside a synchronous task callback? +} - Queue.prototype = queue.prototype = { - constructor: Queue, - defer: function(callback) { - if (typeof callback !== "function" || this._call) throw new Error; - if (this._error != null) return this; - var t = slice$1.call(arguments, 1); - t.push(callback); - ++this._waiting, this._tasks.push(t); - poke(this); - return this; - }, - abort: function() { - if (this._error == null) abort(this, new Error("abort")); - return this; - }, - await: function(callback) { - if (typeof callback !== "function" || this._call) throw new Error; - this._call = function(error, results) { callback.apply(null, [error].concat(results)); }; - maybeNotify(this); - return this; - }, - awaitAll: function(callback) { - if (typeof callback !== "function" || this._call) throw new Error; - this._call = callback; - maybeNotify(this); - return this; - } - }; - - function poke(q) { - if (!q._start) try { start(q); } // let the current task complete - catch (e) { if (q._tasks[q._ended + q._active - 1]) abort(q, e); } // task errored synchronously +Queue.prototype = queue.prototype = { + constructor: Queue, + defer: function(callback) { + if (typeof callback !== "function" || this._call) throw new Error; + if (this._error != null) return this; + var t = slice$1.call(arguments, 1); + t.push(callback); + ++this._waiting, this._tasks.push(t); + poke(this); + return this; + }, + abort: function() { + if (this._error == null) abort(this, new Error("abort")); + return this; + }, + await: function(callback) { + if (typeof callback !== "function" || this._call) throw new Error; + this._call = function(error, results) { callback.apply(null, [error].concat(results)); }; + maybeNotify(this); + return this; + }, + awaitAll: function(callback) { + if (typeof callback !== "function" || this._call) throw new Error; + this._call = callback; + maybeNotify(this); + return this; } +}; - function start(q) { - while (q._start = q._waiting && q._active < q._size) { - var i = q._ended + q._active, - t = q._tasks[i], - j = t.length - 1, - c = t[j]; - t[j] = end(q, i); - --q._waiting, ++q._active; - t = c.apply(null, t); - if (!q._tasks[i]) continue; // task finished synchronously - q._tasks[i] = t || noabort; +function poke(q) { + if (!q._start) { + try { start(q); } // let the current task complete + catch (e) { + if (q._tasks[q._ended + q._active - 1]) abort(q, e); // task errored synchronously + else if (!q._data) throw e; // await callback errored synchronously } } +} - function end(q, i) { - return function(e, r) { - if (!q._tasks[i]) return; // ignore multiple callbacks - --q._active, ++q._ended; - q._tasks[i] = null; - if (q._error != null) return; // ignore secondary errors - if (e != null) { - abort(q, e); - } else { - q._data[i] = r; - if (q._waiting) poke(q); - else maybeNotify(q); - } - }; +function start(q) { + while (q._start = q._waiting && q._active < q._size) { + var i = q._ended + q._active, + t = q._tasks[i], + j = t.length - 1, + c = t[j]; + t[j] = end(q, i); + --q._waiting, ++q._active; + t = c.apply(null, t); + if (!q._tasks[i]) continue; // task finished synchronously + q._tasks[i] = t || noabort; } +} - function abort(q, e) { - var i = q._tasks.length, t; - q._error = e; // ignore active callbacks - q._data = undefined; // allow gc - q._waiting = NaN; // prevent starting +function end(q, i) { + return function(e, r) { + if (!q._tasks[i]) return; // ignore multiple callbacks + --q._active, ++q._ended; + q._tasks[i] = null; + if (q._error != null) return; // ignore secondary errors + if (e != null) { + abort(q, e); + } else { + q._data[i] = r; + if (q._waiting) poke(q); + else maybeNotify(q); + } + }; +} - while (--i >= 0) { - if (t = q._tasks[i]) { - q._tasks[i] = null; - if (t.abort) try { t.abort(); } +function abort(q, e) { + var i = q._tasks.length, t; + q._error = e; // ignore active callbacks + q._data = undefined; // allow gc + q._waiting = NaN; // prevent starting + + while (--i >= 0) { + if (t = q._tasks[i]) { + q._tasks[i] = null; + if (t.abort) { + try { t.abort(); } catch (e) { /* ignore */ } } } - - q._active = NaN; // allow notification - maybeNotify(q); } - function maybeNotify(q) { - if (!q._active && q._call) q._call(q._error, q._data); - } + q._active = NaN; // allow notification + maybeNotify(q); +} - function queue(concurrency) { - return new Queue(arguments.length ? +concurrency : Infinity); +function maybeNotify(q) { + if (!q._active && q._call) { + var d = q._data; + q._data = undefined; // allow gc + q._call(q._error, d); } +} - function constant$1(x) { - return function constant() { - return x; - }; - } +function queue(concurrency) { + return new Queue(arguments.length ? +concurrency : Infinity); +} - var epsilon$1 = 1e-12; - var pi$2 = Math.PI; - var halfPi$1 = pi$2 / 2; - var tau$2 = 2 * pi$2; +var constant$2 = function(x) { + return function constant() { + return x; + }; +} - function arcInnerRadius(d) { - return d.innerRadius; - } +var epsilon$1 = 1e-12; +var pi$2 = Math.PI; +var halfPi$1 = pi$2 / 2; +var tau$2 = 2 * pi$2; - function arcOuterRadius(d) { - return d.outerRadius; - } +function arcInnerRadius(d) { + return d.innerRadius; +} - function arcStartAngle(d) { - return d.startAngle; - } +function arcOuterRadius(d) { + return d.outerRadius; +} - function arcEndAngle(d) { - return d.endAngle; - } +function arcStartAngle(d) { + return d.startAngle; +} - function arcPadAngle(d) { - return d && d.padAngle; // Note: optional! - } +function arcEndAngle(d) { + return d.endAngle; +} - function asin(x) { - return x >= 1 ? halfPi$1 : x <= -1 ? -halfPi$1 : Math.asin(x); - } +function arcPadAngle(d) { + return d && d.padAngle; // Note: optional! +} - function intersect(x0, y0, x1, y1, x2, y2, x3, y3) { - var x10 = x1 - x0, y10 = y1 - y0, - x32 = x3 - x2, y32 = y3 - y2, - t = (x32 * (y0 - y2) - y32 * (x0 - x2)) / (y32 * x10 - x32 * y10); - return [x0 + t * x10, y0 + t * y10]; - } +function asin(x) { + return x >= 1 ? halfPi$1 : x <= -1 ? -halfPi$1 : Math.asin(x); +} - // Compute perpendicular offset line of length rc. - // http://mathworld.wolfram.com/Circle-LineIntersection.html - function cornerTangents(x0, y0, x1, y1, r1, rc, cw) { - var x01 = x0 - x1, - y01 = y0 - y1, - lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01), - ox = lo * y01, - oy = -lo * x01, - x11 = x0 + ox, - y11 = y0 + oy, - x10 = x1 + ox, - y10 = y1 + oy, - x00 = (x11 + x10) / 2, - y00 = (y11 + y10) / 2, - dx = x10 - x11, - dy = y10 - y11, - d2 = dx * dx + dy * dy, - r = r1 - rc, - D = x11 * y10 - x10 * y11, - d = (dy < 0 ? -1 : 1) * Math.sqrt(Math.max(0, r * r * d2 - D * D)), - cx0 = (D * dy - dx * d) / d2, - cy0 = (-D * dx - dy * d) / d2, - cx1 = (D * dy + dx * d) / d2, - cy1 = (-D * dx + dy * d) / d2, - dx0 = cx0 - x00, - dy0 = cy0 - y00, - dx1 = cx1 - x00, - dy1 = cy1 - y00; +function intersect(x0, y0, x1, y1, x2, y2, x3, y3) { + var x10 = x1 - x0, y10 = y1 - y0, + x32 = x3 - x2, y32 = y3 - y2, + t = (x32 * (y0 - y2) - y32 * (x0 - x2)) / (y32 * x10 - x32 * y10); + return [x0 + t * x10, y0 + t * y10]; +} - // Pick the closer of the two intersection points. - // TODO Is there a faster way to determine which intersection to use? - if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1; +// Compute perpendicular offset line of length rc. +// http://mathworld.wolfram.com/Circle-LineIntersection.html +function cornerTangents(x0, y0, x1, y1, r1, rc, cw) { + var x01 = x0 - x1, + y01 = y0 - y1, + lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01), + ox = lo * y01, + oy = -lo * x01, + x11 = x0 + ox, + y11 = y0 + oy, + x10 = x1 + ox, + y10 = y1 + oy, + x00 = (x11 + x10) / 2, + y00 = (y11 + y10) / 2, + dx = x10 - x11, + dy = y10 - y11, + d2 = dx * dx + dy * dy, + r = r1 - rc, + D = x11 * y10 - x10 * y11, + d = (dy < 0 ? -1 : 1) * Math.sqrt(Math.max(0, r * r * d2 - D * D)), + cx0 = (D * dy - dx * d) / d2, + cy0 = (-D * dx - dy * d) / d2, + cx1 = (D * dy + dx * d) / d2, + cy1 = (-D * dx + dy * d) / d2, + dx0 = cx0 - x00, + dy0 = cy0 - y00, + dx1 = cx1 - x00, + dy1 = cy1 - y00; - return { - cx: cx0, - cy: cy0, - x01: -ox, - y01: -oy, - x11: cx0 * (r1 / r - 1), - y11: cy0 * (r1 / r - 1) - }; - } + // Pick the closer of the two intersection points. + // TODO Is there a faster way to determine which intersection to use? + if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1; - function arc() { - var innerRadius = arcInnerRadius, - outerRadius = arcOuterRadius, - cornerRadius = constant$1(0), - padRadius = null, - startAngle = arcStartAngle, - endAngle = arcEndAngle, - padAngle = arcPadAngle, - context = null; + return { + cx: cx0, + cy: cy0, + x01: -ox, + y01: -oy, + x11: cx0 * (r1 / r - 1), + y11: cy0 * (r1 / r - 1) + }; +} - function arc() { - var buffer, - r, - r0 = +innerRadius.apply(this, arguments), - r1 = +outerRadius.apply(this, arguments), - a0 = startAngle.apply(this, arguments) - halfPi$1, - a1 = endAngle.apply(this, arguments) - halfPi$1, - da = Math.abs(a1 - a0), - cw = a1 > a0; +var arc = function() { + var innerRadius = arcInnerRadius, + outerRadius = arcOuterRadius, + cornerRadius = constant$2(0), + padRadius = null, + startAngle = arcStartAngle, + endAngle = arcEndAngle, + padAngle = arcPadAngle, + context = null; - if (!context) context = buffer = path(); + function arc() { + var buffer, + r, + r0 = +innerRadius.apply(this, arguments), + r1 = +outerRadius.apply(this, arguments), + a0 = startAngle.apply(this, arguments) - halfPi$1, + a1 = endAngle.apply(this, arguments) - halfPi$1, + da = Math.abs(a1 - a0), + cw = a1 > a0; - // Ensure that the outer radius is always larger than the inner radius. - if (r1 < r0) r = r1, r1 = r0, r0 = r; + if (!context) context = buffer = path(); - // Is it a point? - if (!(r1 > epsilon$1)) context.moveTo(0, 0); + // Ensure that the outer radius is always larger than the inner radius. + if (r1 < r0) r = r1, r1 = r0, r0 = r; - // Or is it a circle or annulus? - else if (da > tau$2 - epsilon$1) { - context.moveTo(r1 * Math.cos(a0), r1 * Math.sin(a0)); - context.arc(0, 0, r1, a0, a1, !cw); - if (r0 > epsilon$1) { - context.moveTo(r0 * Math.cos(a1), r0 * Math.sin(a1)); - context.arc(0, 0, r0, a1, a0, cw); - } + // Is it a point? + if (!(r1 > epsilon$1)) context.moveTo(0, 0); + + // Or is it a circle or annulus? + else if (da > tau$2 - epsilon$1) { + context.moveTo(r1 * Math.cos(a0), r1 * Math.sin(a0)); + context.arc(0, 0, r1, a0, a1, !cw); + if (r0 > epsilon$1) { + context.moveTo(r0 * Math.cos(a1), r0 * Math.sin(a1)); + context.arc(0, 0, r0, a1, a0, cw); } + } - // Or is it a circular or annular sector? - else { - var a01 = a0, - a11 = a1, - a00 = a0, - a10 = a1, - da0 = da, - da1 = da, - ap = padAngle.apply(this, arguments) / 2, - rp = (ap > epsilon$1) && (padRadius ? +padRadius.apply(this, arguments) : Math.sqrt(r0 * r0 + r1 * r1)), - rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments)), - rc0 = rc, - rc1 = rc, - t0, - t1; + // Or is it a circular or annular sector? + else { + var a01 = a0, + a11 = a1, + a00 = a0, + a10 = a1, + da0 = da, + da1 = da, + ap = padAngle.apply(this, arguments) / 2, + rp = (ap > epsilon$1) && (padRadius ? +padRadius.apply(this, arguments) : Math.sqrt(r0 * r0 + r1 * r1)), + rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments)), + rc0 = rc, + rc1 = rc, + t0, + t1; - // Apply padding? Note that since r1 ≥ r0, da1 ≥ da0. - if (rp > epsilon$1) { - var p0 = asin(rp / r0 * Math.sin(ap)), - p1 = asin(rp / r1 * Math.sin(ap)); - if ((da0 -= p0 * 2) > epsilon$1) p0 *= (cw ? 1 : -1), a00 += p0, a10 -= p0; - else da0 = 0, a00 = a10 = (a0 + a1) / 2; - if ((da1 -= p1 * 2) > epsilon$1) p1 *= (cw ? 1 : -1), a01 += p1, a11 -= p1; - else da1 = 0, a01 = a11 = (a0 + a1) / 2; - } + // Apply padding? Note that since r1 ≥ r0, da1 ≥ da0. + if (rp > epsilon$1) { + var p0 = asin(rp / r0 * Math.sin(ap)), + p1 = asin(rp / r1 * Math.sin(ap)); + if ((da0 -= p0 * 2) > epsilon$1) p0 *= (cw ? 1 : -1), a00 += p0, a10 -= p0; + else da0 = 0, a00 = a10 = (a0 + a1) / 2; + if ((da1 -= p1 * 2) > epsilon$1) p1 *= (cw ? 1 : -1), a01 += p1, a11 -= p1; + else da1 = 0, a01 = a11 = (a0 + a1) / 2; + } - var x01 = r1 * Math.cos(a01), - y01 = r1 * Math.sin(a01), - x10 = r0 * Math.cos(a10), - y10 = r0 * Math.sin(a10); + var x01 = r1 * Math.cos(a01), + y01 = r1 * Math.sin(a01), + x10 = r0 * Math.cos(a10), + y10 = r0 * Math.sin(a10); - // Apply rounded corners? - if (rc > epsilon$1) { - var x11 = r1 * Math.cos(a11), - y11 = r1 * Math.sin(a11), - x00 = r0 * Math.cos(a00), - y00 = r0 * Math.sin(a00); + // Apply rounded corners? + if (rc > epsilon$1) { + var x11 = r1 * Math.cos(a11), + y11 = r1 * Math.sin(a11), + x00 = r0 * Math.cos(a00), + y00 = r0 * Math.sin(a00); - // Restrict the corner radius according to the sector angle. - if (da < pi$2) { - var oc = da0 > epsilon$1 ? intersect(x01, y01, x00, y00, x11, y11, x10, y10) : [x10, y10], - ax = x01 - oc[0], - ay = y01 - oc[1], - bx = x11 - oc[0], - by = y11 - oc[1], - kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2), - lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]); - rc0 = Math.min(rc, (r0 - lc) / (kc - 1)); - rc1 = Math.min(rc, (r1 - lc) / (kc + 1)); - } + // Restrict the corner radius according to the sector angle. + if (da < pi$2) { + var oc = da0 > epsilon$1 ? intersect(x01, y01, x00, y00, x11, y11, x10, y10) : [x10, y10], + ax = x01 - oc[0], + ay = y01 - oc[1], + bx = x11 - oc[0], + by = y11 - oc[1], + kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2), + lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]); + rc0 = Math.min(rc, (r0 - lc) / (kc - 1)); + rc1 = Math.min(rc, (r1 - lc) / (kc + 1)); } + } - // Is the sector collapsed to a line? - if (!(da1 > epsilon$1)) context.moveTo(x01, y01); + // Is the sector collapsed to a line? + if (!(da1 > epsilon$1)) context.moveTo(x01, y01); - // Does the sector’s outer ring have rounded corners? - else if (rc1 > epsilon$1) { - t0 = cornerTangents(x00, y00, x01, y01, r1, rc1, cw); - t1 = cornerTangents(x11, y11, x10, y10, r1, rc1, cw); + // Does the sector’s outer ring have rounded corners? + else if (rc1 > epsilon$1) { + t0 = cornerTangents(x00, y00, x01, y01, r1, rc1, cw); + t1 = cornerTangents(x11, y11, x10, y10, r1, rc1, cw); - context.moveTo(t0.cx + t0.x01, t0.cy + t0.y01); + context.moveTo(t0.cx + t0.x01, t0.cy + t0.y01); - // Have the corners merged? - if (rc1 < rc) context.arc(t0.cx, t0.cy, rc1, Math.atan2(t0.y01, t0.x01), Math.atan2(t1.y01, t1.x01), !cw); + // Have the corners merged? + if (rc1 < rc) context.arc(t0.cx, t0.cy, rc1, Math.atan2(t0.y01, t0.x01), Math.atan2(t1.y01, t1.x01), !cw); - // Otherwise, draw the two corners and the ring. - else { - context.arc(t0.cx, t0.cy, rc1, Math.atan2(t0.y01, t0.x01), Math.atan2(t0.y11, t0.x11), !cw); - context.arc(0, 0, r1, Math.atan2(t0.cy + t0.y11, t0.cx + t0.x11), Math.atan2(t1.cy + t1.y11, t1.cx + t1.x11), !cw); - context.arc(t1.cx, t1.cy, rc1, Math.atan2(t1.y11, t1.x11), Math.atan2(t1.y01, t1.x01), !cw); - } + // Otherwise, draw the two corners and the ring. + else { + context.arc(t0.cx, t0.cy, rc1, Math.atan2(t0.y01, t0.x01), Math.atan2(t0.y11, t0.x11), !cw); + context.arc(0, 0, r1, Math.atan2(t0.cy + t0.y11, t0.cx + t0.x11), Math.atan2(t1.cy + t1.y11, t1.cx + t1.x11), !cw); + context.arc(t1.cx, t1.cy, rc1, Math.atan2(t1.y11, t1.x11), Math.atan2(t1.y01, t1.x01), !cw); } + } - // Or is the outer ring just a circular arc? - else context.moveTo(x01, y01), context.arc(0, 0, r1, a01, a11, !cw); + // Or is the outer ring just a circular arc? + else context.moveTo(x01, y01), context.arc(0, 0, r1, a01, a11, !cw); - // Is there no inner ring, and it’s a circular sector? - // Or perhaps it’s an annular sector collapsed due to padding? - if (!(r0 > epsilon$1) || !(da0 > epsilon$1)) context.lineTo(x10, y10); + // Is there no inner ring, and it’s a circular sector? + // Or perhaps it’s an annular sector collapsed due to padding? + if (!(r0 > epsilon$1) || !(da0 > epsilon$1)) context.lineTo(x10, y10); - // Does the sector’s inner ring (or point) have rounded corners? - else if (rc0 > epsilon$1) { - t0 = cornerTangents(x10, y10, x11, y11, r0, -rc0, cw); - t1 = cornerTangents(x01, y01, x00, y00, r0, -rc0, cw); + // Does the sector’s inner ring (or point) have rounded corners? + else if (rc0 > epsilon$1) { + t0 = cornerTangents(x10, y10, x11, y11, r0, -rc0, cw); + t1 = cornerTangents(x01, y01, x00, y00, r0, -rc0, cw); - context.lineTo(t0.cx + t0.x01, t0.cy + t0.y01); + context.lineTo(t0.cx + t0.x01, t0.cy + t0.y01); - // Have the corners merged? - if (rc0 < rc) context.arc(t0.cx, t0.cy, rc0, Math.atan2(t0.y01, t0.x01), Math.atan2(t1.y01, t1.x01), !cw); + // Have the corners merged? + if (rc0 < rc) context.arc(t0.cx, t0.cy, rc0, Math.atan2(t0.y01, t0.x01), Math.atan2(t1.y01, t1.x01), !cw); - // Otherwise, draw the two corners and the ring. - else { - context.arc(t0.cx, t0.cy, rc0, Math.atan2(t0.y01, t0.x01), Math.atan2(t0.y11, t0.x11), !cw); - context.arc(0, 0, r0, Math.atan2(t0.cy + t0.y11, t0.cx + t0.x11), Math.atan2(t1.cy + t1.y11, t1.cx + t1.x11), cw); - context.arc(t1.cx, t1.cy, rc0, Math.atan2(t1.y11, t1.x11), Math.atan2(t1.y01, t1.x01), !cw); - } + // Otherwise, draw the two corners and the ring. + else { + context.arc(t0.cx, t0.cy, rc0, Math.atan2(t0.y01, t0.x01), Math.atan2(t0.y11, t0.x11), !cw); + context.arc(0, 0, r0, Math.atan2(t0.cy + t0.y11, t0.cx + t0.x11), Math.atan2(t1.cy + t1.y11, t1.cx + t1.x11), cw); + context.arc(t1.cx, t1.cy, rc0, Math.atan2(t1.y11, t1.x11), Math.atan2(t1.y01, t1.x01), !cw); } - - // Or is the inner ring just a circular arc? - else context.arc(0, 0, r0, a10, a00, cw); } - context.closePath(); - - if (buffer) return context = null, buffer + "" || null; + // Or is the inner ring just a circular arc? + else context.arc(0, 0, r0, a10, a00, cw); } - arc.centroid = function() { - var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, - a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - pi$2 / 2; - return [Math.cos(a) * r, Math.sin(a) * r]; - }; + context.closePath(); - arc.innerRadius = function(_) { - return arguments.length ? (innerRadius = typeof _ === "function" ? _ : constant$1(+_), arc) : innerRadius; - }; + if (buffer) return context = null, buffer + "" || null; + } - arc.outerRadius = function(_) { - return arguments.length ? (outerRadius = typeof _ === "function" ? _ : constant$1(+_), arc) : outerRadius; - }; + arc.centroid = function() { + var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, + a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - pi$2 / 2; + return [Math.cos(a) * r, Math.sin(a) * r]; + }; - arc.cornerRadius = function(_) { - return arguments.length ? (cornerRadius = typeof _ === "function" ? _ : constant$1(+_), arc) : cornerRadius; - }; + arc.innerRadius = function(_) { + return arguments.length ? (innerRadius = typeof _ === "function" ? _ : constant$2(+_), arc) : innerRadius; + }; - arc.padRadius = function(_) { - return arguments.length ? (padRadius = _ == null ? null : typeof _ === "function" ? _ : constant$1(+_), arc) : padRadius; - }; + arc.outerRadius = function(_) { + return arguments.length ? (outerRadius = typeof _ === "function" ? _ : constant$2(+_), arc) : outerRadius; + }; - arc.startAngle = function(_) { - return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$1(+_), arc) : startAngle; - }; + arc.cornerRadius = function(_) { + return arguments.length ? (cornerRadius = typeof _ === "function" ? _ : constant$2(+_), arc) : cornerRadius; + }; - arc.endAngle = function(_) { - return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$1(+_), arc) : endAngle; - }; + arc.padRadius = function(_) { + return arguments.length ? (padRadius = _ == null ? null : typeof _ === "function" ? _ : constant$2(+_), arc) : padRadius; + }; - arc.padAngle = function(_) { - return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$1(+_), arc) : padAngle; - }; + arc.startAngle = function(_) { + return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$2(+_), arc) : startAngle; + }; - arc.context = function(_) { - return arguments.length ? ((context = _ == null ? null : _), arc) : context; - }; + arc.endAngle = function(_) { + return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$2(+_), arc) : endAngle; + }; - return arc; - } + arc.padAngle = function(_) { + return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$2(+_), arc) : padAngle; + }; - function Linear(context) { - this._context = context; - } - - Linear.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._point = 0; - }, - lineEnd: function() { - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; // proceed - default: this._context.lineTo(x, y); break; - } - } + arc.context = function(_) { + return arguments.length ? ((context = _ == null ? null : _), arc) : context; }; - function curveLinear(context) { - return new Linear(context); - } + return arc; +} - function x(p) { - return p[0]; - } +function Linear(context) { + this._context = context; +} - function y(p) { - return p[1]; +Linear.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._point = 0; + }, + lineEnd: function() { + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; // proceed + default: this._context.lineTo(x, y); break; + } } +}; - function line() { - var x$$ = x, - y$$ = y, - defined = constant$1(true), - context = null, - curve = curveLinear, - output = null; +var curveLinear = function(context) { + return new Linear(context); +} - function line(data) { - var i, - n = data.length, - d, - defined0 = false, - buffer; +function x(p) { + return p[0]; +} - if (context == null) output = curve(buffer = path()); +function y(p) { + return p[1]; +} - for (i = 0; i <= n; ++i) { - if (!(i < n && defined(d = data[i], i, data)) === defined0) { - if (defined0 = !defined0) output.lineStart(); - else output.lineEnd(); - } - if (defined0) output.point(+x$$(d, i, data), +y$$(d, i, data)); - } +var line = function() { + var x$$1 = x, + y$$1 = y, + defined = constant$2(true), + context = null, + curve = curveLinear, + output = null; - if (buffer) return output = null, buffer + "" || null; + function line(data) { + var i, + n = data.length, + d, + defined0 = false, + buffer; + + if (context == null) output = curve(buffer = path()); + + for (i = 0; i <= n; ++i) { + if (!(i < n && defined(d = data[i], i, data)) === defined0) { + if (defined0 = !defined0) output.lineStart(); + else output.lineEnd(); + } + if (defined0) output.point(+x$$1(d, i, data), +y$$1(d, i, data)); } - line.x = function(_) { - return arguments.length ? (x$$ = typeof _ === "function" ? _ : constant$1(+_), line) : x$$; - }; + if (buffer) return output = null, buffer + "" || null; + } - line.y = function(_) { - return arguments.length ? (y$$ = typeof _ === "function" ? _ : constant$1(+_), line) : y$$; - }; + line.x = function(_) { + return arguments.length ? (x$$1 = typeof _ === "function" ? _ : constant$2(+_), line) : x$$1; + }; - line.defined = function(_) { - return arguments.length ? (defined = typeof _ === "function" ? _ : constant$1(!!_), line) : defined; - }; + line.y = function(_) { + return arguments.length ? (y$$1 = typeof _ === "function" ? _ : constant$2(+_), line) : y$$1; + }; - line.curve = function(_) { - return arguments.length ? (curve = _, context != null && (output = curve(context)), line) : curve; - }; + line.defined = function(_) { + return arguments.length ? (defined = typeof _ === "function" ? _ : constant$2(!!_), line) : defined; + }; - line.context = function(_) { - return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), line) : context; - }; + line.curve = function(_) { + return arguments.length ? (curve = _, context != null && (output = curve(context)), line) : curve; + }; - return line; - } + line.context = function(_) { + return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), line) : context; + }; - function area$1() { - var x0 = x, - x1 = null, - y0 = constant$1(0), - y1 = y, - defined = constant$1(true), - context = null, - curve = curveLinear, - output = null; + return line; +} - function area(data) { - var i, - j, - k, - n = data.length, - d, - defined0 = false, - buffer, - x0z = new Array(n), - y0z = new Array(n); +var area$1 = function() { + var x0 = x, + x1 = null, + y0 = constant$2(0), + y1 = y, + defined = constant$2(true), + context = null, + curve = curveLinear, + output = null; - if (context == null) output = curve(buffer = path()); + function area(data) { + var i, + j, + k, + n = data.length, + d, + defined0 = false, + buffer, + x0z = new Array(n), + y0z = new Array(n); - for (i = 0; i <= n; ++i) { - if (!(i < n && defined(d = data[i], i, data)) === defined0) { - if (defined0 = !defined0) { - j = i; - output.areaStart(); - output.lineStart(); - } else { - output.lineEnd(); - output.lineStart(); - for (k = i - 1; k >= j; --k) { - output.point(x0z[k], y0z[k]); - } - output.lineEnd(); - output.areaEnd(); + if (context == null) output = curve(buffer = path()); + + for (i = 0; i <= n; ++i) { + if (!(i < n && defined(d = data[i], i, data)) === defined0) { + if (defined0 = !defined0) { + j = i; + output.areaStart(); + output.lineStart(); + } else { + output.lineEnd(); + output.lineStart(); + for (k = i - 1; k >= j; --k) { + output.point(x0z[k], y0z[k]); } + output.lineEnd(); + output.areaEnd(); } - if (defined0) { - x0z[i] = +x0(d, i, data), y0z[i] = +y0(d, i, data); - output.point(x1 ? +x1(d, i, data) : x0z[i], y1 ? +y1(d, i, data) : y0z[i]); - } } - - if (buffer) return output = null, buffer + "" || null; + if (defined0) { + x0z[i] = +x0(d, i, data), y0z[i] = +y0(d, i, data); + output.point(x1 ? +x1(d, i, data) : x0z[i], y1 ? +y1(d, i, data) : y0z[i]); + } } - function arealine() { - return line().defined(defined).curve(curve).context(context); - } + if (buffer) return output = null, buffer + "" || null; + } - area.x = function(_) { - return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$1(+_), x1 = null, area) : x0; - }; + function arealine() { + return line().defined(defined).curve(curve).context(context); + } - area.x0 = function(_) { - return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$1(+_), area) : x0; - }; + area.x = function(_) { + return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$2(+_), x1 = null, area) : x0; + }; - area.x1 = function(_) { - return arguments.length ? (x1 = _ == null ? null : typeof _ === "function" ? _ : constant$1(+_), area) : x1; - }; + area.x0 = function(_) { + return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$2(+_), area) : x0; + }; - area.y = function(_) { - return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$1(+_), y1 = null, area) : y0; - }; + area.x1 = function(_) { + return arguments.length ? (x1 = _ == null ? null : typeof _ === "function" ? _ : constant$2(+_), area) : x1; + }; - area.y0 = function(_) { - return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$1(+_), area) : y0; - }; + area.y = function(_) { + return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$2(+_), y1 = null, area) : y0; + }; - area.y1 = function(_) { - return arguments.length ? (y1 = _ == null ? null : typeof _ === "function" ? _ : constant$1(+_), area) : y1; - }; + area.y0 = function(_) { + return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$2(+_), area) : y0; + }; - area.lineX0 = - area.lineY0 = function() { - return arealine().x(x0).y(y0); - }; + area.y1 = function(_) { + return arguments.length ? (y1 = _ == null ? null : typeof _ === "function" ? _ : constant$2(+_), area) : y1; + }; - area.lineY1 = function() { - return arealine().x(x0).y(y1); - }; + area.lineX0 = + area.lineY0 = function() { + return arealine().x(x0).y(y0); + }; - area.lineX1 = function() { - return arealine().x(x1).y(y0); - }; + area.lineY1 = function() { + return arealine().x(x0).y(y1); + }; - area.defined = function(_) { - return arguments.length ? (defined = typeof _ === "function" ? _ : constant$1(!!_), area) : defined; - }; + area.lineX1 = function() { + return arealine().x(x1).y(y0); + }; - area.curve = function(_) { - return arguments.length ? (curve = _, context != null && (output = curve(context)), area) : curve; - }; + area.defined = function(_) { + return arguments.length ? (defined = typeof _ === "function" ? _ : constant$2(!!_), area) : defined; + }; - area.context = function(_) { - return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), area) : context; - }; + area.curve = function(_) { + return arguments.length ? (curve = _, context != null && (output = curve(context)), area) : curve; + }; - return area; - } + area.context = function(_) { + return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), area) : context; + }; - function descending$1(a, b) { - return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; - } + return area; +} - function identity$1(d) { - return d; - } +var descending$1 = function(a, b) { + return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; +} - function pie() { - var value = identity$1, - sortValues = descending$1, - sort = null, - startAngle = constant$1(0), - endAngle = constant$1(tau$2), - padAngle = constant$1(0); +var identity$1 = function(d) { + return d; +} - function pie(data) { - var i, - n = data.length, - j, - k, - sum = 0, - index = new Array(n), - arcs = new Array(n), - a0 = +startAngle.apply(this, arguments), - da = Math.min(tau$2, Math.max(-tau$2, endAngle.apply(this, arguments) - a0)), - a1, - p = Math.min(Math.abs(da) / n, padAngle.apply(this, arguments)), - pa = p * (da < 0 ? -1 : 1), - v; +var pie = function() { + var value = identity$1, + sortValues = descending$1, + sort = null, + startAngle = constant$2(0), + endAngle = constant$2(tau$2), + padAngle = constant$2(0); - for (i = 0; i < n; ++i) { - if ((v = arcs[index[i] = i] = +value(data[i], i, data)) > 0) { - sum += v; - } - } + function pie(data) { + var i, + n = data.length, + j, + k, + sum = 0, + index = new Array(n), + arcs = new Array(n), + a0 = +startAngle.apply(this, arguments), + da = Math.min(tau$2, Math.max(-tau$2, endAngle.apply(this, arguments) - a0)), + a1, + p = Math.min(Math.abs(da) / n, padAngle.apply(this, arguments)), + pa = p * (da < 0 ? -1 : 1), + v; - // Optionally sort the arcs by previously-computed values or by data. - if (sortValues != null) index.sort(function(i, j) { return sortValues(arcs[i], arcs[j]); }); - else if (sort != null) index.sort(function(i, j) { return sort(data[i], data[j]); }); - - // Compute the arcs! They are stored in the original data's order. - for (i = 0, k = sum ? (da - n * pa) / sum : 0; i < n; ++i, a0 = a1) { - j = index[i], v = arcs[j], a1 = a0 + (v > 0 ? v * k : 0) + pa, arcs[j] = { - data: data[j], - index: i, - value: v, - startAngle: a0, - endAngle: a1, - padAngle: p - }; + for (i = 0; i < n; ++i) { + if ((v = arcs[index[i] = i] = +value(data[i], i, data)) > 0) { + sum += v; } - - return arcs; } - pie.value = function(_) { - return arguments.length ? (value = typeof _ === "function" ? _ : constant$1(+_), pie) : value; - }; + // Optionally sort the arcs by previously-computed values or by data. + if (sortValues != null) index.sort(function(i, j) { return sortValues(arcs[i], arcs[j]); }); + else if (sort != null) index.sort(function(i, j) { return sort(data[i], data[j]); }); - pie.sortValues = function(_) { - return arguments.length ? (sortValues = _, sort = null, pie) : sortValues; - }; + // Compute the arcs! They are stored in the original data's order. + for (i = 0, k = sum ? (da - n * pa) / sum : 0; i < n; ++i, a0 = a1) { + j = index[i], v = arcs[j], a1 = a0 + (v > 0 ? v * k : 0) + pa, arcs[j] = { + data: data[j], + index: i, + value: v, + startAngle: a0, + endAngle: a1, + padAngle: p + }; + } - pie.sort = function(_) { - return arguments.length ? (sort = _, sortValues = null, pie) : sort; - }; + return arcs; + } - pie.startAngle = function(_) { - return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$1(+_), pie) : startAngle; - }; + pie.value = function(_) { + return arguments.length ? (value = typeof _ === "function" ? _ : constant$2(+_), pie) : value; + }; - pie.endAngle = function(_) { - return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$1(+_), pie) : endAngle; - }; + pie.sortValues = function(_) { + return arguments.length ? (sortValues = _, sort = null, pie) : sortValues; + }; - pie.padAngle = function(_) { - return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$1(+_), pie) : padAngle; - }; + pie.sort = function(_) { + return arguments.length ? (sort = _, sortValues = null, pie) : sort; + }; - return pie; - } + pie.startAngle = function(_) { + return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$2(+_), pie) : startAngle; + }; - var curveRadialLinear = curveRadial(curveLinear); + pie.endAngle = function(_) { + return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$2(+_), pie) : endAngle; + }; - function Radial(curve) { - this._curve = curve; - } - - Radial.prototype = { - areaStart: function() { - this._curve.areaStart(); - }, - areaEnd: function() { - this._curve.areaEnd(); - }, - lineStart: function() { - this._curve.lineStart(); - }, - lineEnd: function() { - this._curve.lineEnd(); - }, - point: function(a, r) { - this._curve.point(r * Math.sin(a), r * -Math.cos(a)); - } + pie.padAngle = function(_) { + return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$2(+_), pie) : padAngle; }; - function curveRadial(curve) { + return pie; +} - function radial(context) { - return new Radial(curve(context)); - } +var curveRadialLinear = curveRadial(curveLinear); - radial._curve = curve; +function Radial(curve) { + this._curve = curve; +} - return radial; +Radial.prototype = { + areaStart: function() { + this._curve.areaStart(); + }, + areaEnd: function() { + this._curve.areaEnd(); + }, + lineStart: function() { + this._curve.lineStart(); + }, + lineEnd: function() { + this._curve.lineEnd(); + }, + point: function(a, r) { + this._curve.point(r * Math.sin(a), r * -Math.cos(a)); } +}; - function radialLine(l) { - var c = l.curve; +function curveRadial(curve) { - l.angle = l.x, delete l.x; - l.radius = l.y, delete l.y; - - l.curve = function(_) { - return arguments.length ? c(curveRadial(_)) : c()._curve; - }; - - return l; + function radial(context) { + return new Radial(curve(context)); } - function radialLine$1() { - return radialLine(line().curve(curveRadialLinear)); - } + radial._curve = curve; - function radialArea() { - var a = area$1().curve(curveRadialLinear), - c = a.curve, - x0 = a.lineX0, - x1 = a.lineX1, - y0 = a.lineY0, - y1 = a.lineY1; + return radial; +} - a.angle = a.x, delete a.x; - a.startAngle = a.x0, delete a.x0; - a.endAngle = a.x1, delete a.x1; - a.radius = a.y, delete a.y; - a.innerRadius = a.y0, delete a.y0; - a.outerRadius = a.y1, delete a.y1; - a.lineStartAngle = function() { return radialLine(x0()); }, delete a.lineX0; - a.lineEndAngle = function() { return radialLine(x1()); }, delete a.lineX1; - a.lineInnerRadius = function() { return radialLine(y0()); }, delete a.lineY0; - a.lineOuterRadius = function() { return radialLine(y1()); }, delete a.lineY1; +function radialLine(l) { + var c = l.curve; - a.curve = function(_) { - return arguments.length ? c(curveRadial(_)) : c()._curve; - }; + l.angle = l.x, delete l.x; + l.radius = l.y, delete l.y; - return a; - } - - var circle = { - draw: function(context, size) { - var r = Math.sqrt(size / pi$2); - context.moveTo(r, 0); - context.arc(0, 0, r, 0, tau$2); - } + l.curve = function(_) { + return arguments.length ? c(curveRadial(_)) : c()._curve; }; - var cross$1 = { - draw: function(context, size) { - var r = Math.sqrt(size / 5) / 2; - context.moveTo(-3 * r, -r); - context.lineTo(-r, -r); - context.lineTo(-r, -3 * r); - context.lineTo(r, -3 * r); - context.lineTo(r, -r); - context.lineTo(3 * r, -r); - context.lineTo(3 * r, r); - context.lineTo(r, r); - context.lineTo(r, 3 * r); - context.lineTo(-r, 3 * r); - context.lineTo(-r, r); - context.lineTo(-3 * r, r); - context.closePath(); - } - }; + return l; +} - var tan30 = Math.sqrt(1 / 3); - var tan30_2 = tan30 * 2; - var diamond = { - draw: function(context, size) { - var y = Math.sqrt(size / tan30_2), - x = y * tan30; - context.moveTo(0, -y); - context.lineTo(x, 0); - context.lineTo(0, y); - context.lineTo(-x, 0); - context.closePath(); - } - }; +var radialLine$1 = function() { + return radialLine(line().curve(curveRadialLinear)); +} - var ka = 0.89081309152928522810; - var kr = Math.sin(pi$2 / 10) / Math.sin(7 * pi$2 / 10); - var kx = Math.sin(tau$2 / 10) * kr; - var ky = -Math.cos(tau$2 / 10) * kr; - var star = { - draw: function(context, size) { - var r = Math.sqrt(size * ka), - x = kx * r, - y = ky * r; - context.moveTo(0, -r); - context.lineTo(x, y); - for (var i = 1; i < 5; ++i) { - var a = tau$2 * i / 5, - c = Math.cos(a), - s = Math.sin(a); - context.lineTo(s * r, -c * r); - context.lineTo(c * x - s * y, s * x + c * y); - } - context.closePath(); - } - }; +var radialArea = function() { + var a = area$1().curve(curveRadialLinear), + c = a.curve, + x0 = a.lineX0, + x1 = a.lineX1, + y0 = a.lineY0, + y1 = a.lineY1; - var square = { - draw: function(context, size) { - var w = Math.sqrt(size), - x = -w / 2; - context.rect(x, x, w, w); - } - }; + a.angle = a.x, delete a.x; + a.startAngle = a.x0, delete a.x0; + a.endAngle = a.x1, delete a.x1; + a.radius = a.y, delete a.y; + a.innerRadius = a.y0, delete a.y0; + a.outerRadius = a.y1, delete a.y1; + a.lineStartAngle = function() { return radialLine(x0()); }, delete a.lineX0; + a.lineEndAngle = function() { return radialLine(x1()); }, delete a.lineX1; + a.lineInnerRadius = function() { return radialLine(y0()); }, delete a.lineY0; + a.lineOuterRadius = function() { return radialLine(y1()); }, delete a.lineY1; - var sqrt3 = Math.sqrt(3); - - var triangle = { - draw: function(context, size) { - var y = -Math.sqrt(size / (sqrt3 * 3)); - context.moveTo(0, y * 2); - context.lineTo(-sqrt3 * y, -y); - context.lineTo(sqrt3 * y, -y); - context.closePath(); - } + a.curve = function(_) { + return arguments.length ? c(curveRadial(_)) : c()._curve; }; - var c = -0.5; - var s = Math.sqrt(3) / 2; - var k = 1 / Math.sqrt(12); - var a = (k / 2 + 1) * 3; - var wye = { - draw: function(context, size) { - var r = Math.sqrt(size / a), - x0 = r / 2, - y0 = r * k, - x1 = x0, - y1 = r * k + r, - x2 = -x1, - y2 = y1; - context.moveTo(x0, y0); - context.lineTo(x1, y1); - context.lineTo(x2, y2); - context.lineTo(c * x0 - s * y0, s * x0 + c * y0); - context.lineTo(c * x1 - s * y1, s * x1 + c * y1); - context.lineTo(c * x2 - s * y2, s * x2 + c * y2); - context.lineTo(c * x0 + s * y0, c * y0 - s * x0); - context.lineTo(c * x1 + s * y1, c * y1 - s * x1); - context.lineTo(c * x2 + s * y2, c * y2 - s * x2); - context.closePath(); - } - }; + return a; +} - var symbols = [ - circle, - cross$1, - diamond, - square, - star, - triangle, - wye - ]; +var circle = { + draw: function(context, size) { + var r = Math.sqrt(size / pi$2); + context.moveTo(r, 0); + context.arc(0, 0, r, 0, tau$2); + } +}; - function symbol() { - var type = constant$1(circle), - size = constant$1(64), - context = null; +var cross$1 = { + draw: function(context, size) { + var r = Math.sqrt(size / 5) / 2; + context.moveTo(-3 * r, -r); + context.lineTo(-r, -r); + context.lineTo(-r, -3 * r); + context.lineTo(r, -3 * r); + context.lineTo(r, -r); + context.lineTo(3 * r, -r); + context.lineTo(3 * r, r); + context.lineTo(r, r); + context.lineTo(r, 3 * r); + context.lineTo(-r, 3 * r); + context.lineTo(-r, r); + context.lineTo(-3 * r, r); + context.closePath(); + } +}; - function symbol() { - var buffer; - if (!context) context = buffer = path(); - type.apply(this, arguments).draw(context, +size.apply(this, arguments)); - if (buffer) return context = null, buffer + "" || null; - } +var tan30 = Math.sqrt(1 / 3); +var tan30_2 = tan30 * 2; - symbol.type = function(_) { - return arguments.length ? (type = typeof _ === "function" ? _ : constant$1(_), symbol) : type; - }; +var diamond = { + draw: function(context, size) { + var y = Math.sqrt(size / tan30_2), + x = y * tan30; + context.moveTo(0, -y); + context.lineTo(x, 0); + context.lineTo(0, y); + context.lineTo(-x, 0); + context.closePath(); + } +}; - symbol.size = function(_) { - return arguments.length ? (size = typeof _ === "function" ? _ : constant$1(+_), symbol) : size; - }; +var ka = 0.89081309152928522810; +var kr = Math.sin(pi$2 / 10) / Math.sin(7 * pi$2 / 10); +var kx = Math.sin(tau$2 / 10) * kr; +var ky = -Math.cos(tau$2 / 10) * kr; - symbol.context = function(_) { - return arguments.length ? (context = _ == null ? null : _, symbol) : context; - }; +var star = { + draw: function(context, size) { + var r = Math.sqrt(size * ka), + x = kx * r, + y = ky * r; + context.moveTo(0, -r); + context.lineTo(x, y); + for (var i = 1; i < 5; ++i) { + var a = tau$2 * i / 5, + c = Math.cos(a), + s = Math.sin(a); + context.lineTo(s * r, -c * r); + context.lineTo(c * x - s * y, s * x + c * y); + } + context.closePath(); + } +}; - return symbol; +var square = { + draw: function(context, size) { + var w = Math.sqrt(size), + x = -w / 2; + context.rect(x, x, w, w); } +}; - function noop() {} +var sqrt3 = Math.sqrt(3); - function point(that, x, y) { - that._context.bezierCurveTo( - (2 * that._x0 + that._x1) / 3, - (2 * that._y0 + that._y1) / 3, - (that._x0 + 2 * that._x1) / 3, - (that._y0 + 2 * that._y1) / 3, - (that._x0 + 4 * that._x1 + x) / 6, - (that._y0 + 4 * that._y1 + y) / 6 - ); +var triangle = { + draw: function(context, size) { + var y = -Math.sqrt(size / (sqrt3 * 3)); + context.moveTo(0, y * 2); + context.lineTo(-sqrt3 * y, -y); + context.lineTo(sqrt3 * y, -y); + context.closePath(); } +}; - function Basis(context) { - this._context = context; +var c = -0.5; +var s = Math.sqrt(3) / 2; +var k = 1 / Math.sqrt(12); +var a = (k / 2 + 1) * 3; + +var wye = { + draw: function(context, size) { + var r = Math.sqrt(size / a), + x0 = r / 2, + y0 = r * k, + x1 = x0, + y1 = r * k + r, + x2 = -x1, + y2 = y1; + context.moveTo(x0, y0); + context.lineTo(x1, y1); + context.lineTo(x2, y2); + context.lineTo(c * x0 - s * y0, s * x0 + c * y0); + context.lineTo(c * x1 - s * y1, s * x1 + c * y1); + context.lineTo(c * x2 - s * y2, s * x2 + c * y2); + context.lineTo(c * x0 + s * y0, c * y0 - s * x0); + context.lineTo(c * x1 + s * y1, c * y1 - s * x1); + context.lineTo(c * x2 + s * y2, c * y2 - s * x2); + context.closePath(); } +}; - Basis.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = - this._y0 = this._y1 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 3: point(this, this._x1, this._y1); // proceed - case 2: this._context.lineTo(this._x1, this._y1); break; - } - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; break; - case 2: this._point = 3; this._context.lineTo((5 * this._x0 + this._x1) / 6, (5 * this._y0 + this._y1) / 6); // proceed - default: point(this, x, y); break; - } - this._x0 = this._x1, this._x1 = x; - this._y0 = this._y1, this._y1 = y; - } - }; +var symbols = [ + circle, + cross$1, + diamond, + square, + star, + triangle, + wye +]; - function basis(context) { - return new Basis(context); - } +var symbol = function() { + var type = constant$2(circle), + size = constant$2(64), + context = null; - function BasisClosed(context) { - this._context = context; + function symbol() { + var buffer; + if (!context) context = buffer = path(); + type.apply(this, arguments).draw(context, +size.apply(this, arguments)); + if (buffer) return context = null, buffer + "" || null; } - BasisClosed.prototype = { - areaStart: noop, - areaEnd: noop, - lineStart: function() { - this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = - this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 1: { - this._context.moveTo(this._x2, this._y2); - this._context.closePath(); - break; - } - case 2: { - this._context.moveTo((this._x2 + 2 * this._x3) / 3, (this._y2 + 2 * this._y3) / 3); - this._context.lineTo((this._x3 + 2 * this._x2) / 3, (this._y3 + 2 * this._y2) / 3); - this._context.closePath(); - break; - } - case 3: { - this.point(this._x2, this._y2); - this.point(this._x3, this._y3); - this.point(this._x4, this._y4); - break; - } - } - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._x2 = x, this._y2 = y; break; - case 1: this._point = 2; this._x3 = x, this._y3 = y; break; - case 2: this._point = 3; this._x4 = x, this._y4 = y; this._context.moveTo((this._x0 + 4 * this._x1 + x) / 6, (this._y0 + 4 * this._y1 + y) / 6); break; - default: point(this, x, y); break; - } - this._x0 = this._x1, this._x1 = x; - this._y0 = this._y1, this._y1 = y; - } + symbol.type = function(_) { + return arguments.length ? (type = typeof _ === "function" ? _ : constant$2(_), symbol) : type; }; - function basisClosed(context) { - return new BasisClosed(context); - } + symbol.size = function(_) { + return arguments.length ? (size = typeof _ === "function" ? _ : constant$2(+_), symbol) : size; + }; - function BasisOpen(context) { - this._context = context; - } - - BasisOpen.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = - this._y0 = this._y1 = NaN; - this._point = 0; - }, - lineEnd: function() { - if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; break; - case 1: this._point = 2; break; - case 2: this._point = 3; var x0 = (this._x0 + 4 * this._x1 + x) / 6, y0 = (this._y0 + 4 * this._y1 + y) / 6; this._line ? this._context.lineTo(x0, y0) : this._context.moveTo(x0, y0); break; - case 3: this._point = 4; // proceed - default: point(this, x, y); break; - } - this._x0 = this._x1, this._x1 = x; - this._y0 = this._y1, this._y1 = y; - } + symbol.context = function(_) { + return arguments.length ? (context = _ == null ? null : _, symbol) : context; }; - function basisOpen(context) { - return new BasisOpen(context); - } + return symbol; +} - function Bundle(context, beta) { - this._basis = new Basis(context); - this._beta = beta; +var noop = function() {} + +function point(that, x, y) { + that._context.bezierCurveTo( + (2 * that._x0 + that._x1) / 3, + (2 * that._y0 + that._y1) / 3, + (that._x0 + 2 * that._x1) / 3, + (that._y0 + 2 * that._y1) / 3, + (that._x0 + 4 * that._x1 + x) / 6, + (that._y0 + 4 * that._y1 + y) / 6 + ); +} + +function Basis(context) { + this._context = context; +} + +Basis.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = + this._y0 = this._y1 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 3: point(this, this._x1, this._y1); // proceed + case 2: this._context.lineTo(this._x1, this._y1); break; + } + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; break; + case 2: this._point = 3; this._context.lineTo((5 * this._x0 + this._x1) / 6, (5 * this._y0 + this._y1) / 6); // proceed + default: point(this, x, y); break; + } + this._x0 = this._x1, this._x1 = x; + this._y0 = this._y1, this._y1 = y; } +}; - Bundle.prototype = { - lineStart: function() { - this._x = []; - this._y = []; - this._basis.lineStart(); - }, - lineEnd: function() { - var x = this._x, - y = this._y, - j = x.length - 1; +var basis = function(context) { + return new Basis(context); +} - if (j > 0) { - var x0 = x[0], - y0 = y[0], - dx = x[j] - x0, - dy = y[j] - y0, - i = -1, - t; +function BasisClosed(context) { + this._context = context; +} - while (++i <= j) { - t = i / j; - this._basis.point( - this._beta * x[i] + (1 - this._beta) * (x0 + t * dx), - this._beta * y[i] + (1 - this._beta) * (y0 + t * dy) - ); - } +BasisClosed.prototype = { + areaStart: noop, + areaEnd: noop, + lineStart: function() { + this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = + this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 1: { + this._context.moveTo(this._x2, this._y2); + this._context.closePath(); + break; } - - this._x = this._y = null; - this._basis.lineEnd(); - }, - point: function(x, y) { - this._x.push(+x); - this._y.push(+y); + case 2: { + this._context.moveTo((this._x2 + 2 * this._x3) / 3, (this._y2 + 2 * this._y3) / 3); + this._context.lineTo((this._x3 + 2 * this._x2) / 3, (this._y3 + 2 * this._y2) / 3); + this._context.closePath(); + break; + } + case 3: { + this.point(this._x2, this._y2); + this.point(this._x3, this._y3); + this.point(this._x4, this._y4); + break; + } } - }; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._x2 = x, this._y2 = y; break; + case 1: this._point = 2; this._x3 = x, this._y3 = y; break; + case 2: this._point = 3; this._x4 = x, this._y4 = y; this._context.moveTo((this._x0 + 4 * this._x1 + x) / 6, (this._y0 + 4 * this._y1 + y) / 6); break; + default: point(this, x, y); break; + } + this._x0 = this._x1, this._x1 = x; + this._y0 = this._y1, this._y1 = y; + } +}; - var bundle = (function custom(beta) { +var basisClosed = function(context) { + return new BasisClosed(context); +} - function bundle(context) { - return beta === 1 ? new Basis(context) : new Bundle(context, beta); +function BasisOpen(context) { + this._context = context; +} + +BasisOpen.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = + this._y0 = this._y1 = NaN; + this._point = 0; + }, + lineEnd: function() { + if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; break; + case 1: this._point = 2; break; + case 2: this._point = 3; var x0 = (this._x0 + 4 * this._x1 + x) / 6, y0 = (this._y0 + 4 * this._y1 + y) / 6; this._line ? this._context.lineTo(x0, y0) : this._context.moveTo(x0, y0); break; + case 3: this._point = 4; // proceed + default: point(this, x, y); break; } + this._x0 = this._x1, this._x1 = x; + this._y0 = this._y1, this._y1 = y; + } +}; - bundle.beta = function(beta) { - return custom(+beta); - }; +var basisOpen = function(context) { + return new BasisOpen(context); +} - return bundle; - })(0.85); +function Bundle(context, beta) { + this._basis = new Basis(context); + this._beta = beta; +} - function point$1(that, x, y) { - that._context.bezierCurveTo( - that._x1 + that._k * (that._x2 - that._x0), - that._y1 + that._k * (that._y2 - that._y0), - that._x2 + that._k * (that._x1 - x), - that._y2 + that._k * (that._y1 - y), - that._x2, - that._y2 - ); - } +Bundle.prototype = { + lineStart: function() { + this._x = []; + this._y = []; + this._basis.lineStart(); + }, + lineEnd: function() { + var x = this._x, + y = this._y, + j = x.length - 1; - function Cardinal(context, tension) { - this._context = context; - this._k = (1 - tension) / 6; - } + if (j > 0) { + var x0 = x[0], + y0 = y[0], + dx = x[j] - x0, + dy = y[j] - y0, + i = -1, + t; - Cardinal.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = this._x2 = - this._y0 = this._y1 = this._y2 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 2: this._context.lineTo(this._x2, this._y2); break; - case 3: point$1(this, this._x1, this._y1); break; + while (++i <= j) { + t = i / j; + this._basis.point( + this._beta * x[i] + (1 - this._beta) * (x0 + t * dx), + this._beta * y[i] + (1 - this._beta) * (y0 + t * dy) + ); } - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; this._x1 = x, this._y1 = y; break; - case 2: this._point = 3; // proceed - default: point$1(this, x, y); break; - } - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; } + + this._x = this._y = null; + this._basis.lineEnd(); + }, + point: function(x, y) { + this._x.push(+x); + this._y.push(+y); + } +}; + +var bundle = (function custom(beta) { + + function bundle(context) { + return beta === 1 ? new Basis(context) : new Bundle(context, beta); + } + + bundle.beta = function(beta) { + return custom(+beta); }; - var cardinal = (function custom(tension) { + return bundle; +})(0.85); - function cardinal(context) { - return new Cardinal(context, tension); - } +function point$1(that, x, y) { + that._context.bezierCurveTo( + that._x1 + that._k * (that._x2 - that._x0), + that._y1 + that._k * (that._y2 - that._y0), + that._x2 + that._k * (that._x1 - x), + that._y2 + that._k * (that._y1 - y), + that._x2, + that._y2 + ); +} - cardinal.tension = function(tension) { - return custom(+tension); - }; +function Cardinal(context, tension) { + this._context = context; + this._k = (1 - tension) / 6; +} - return cardinal; - })(0); +Cardinal.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = this._x2 = + this._y0 = this._y1 = this._y2 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 2: this._context.lineTo(this._x2, this._y2); break; + case 3: point$1(this, this._x1, this._y1); break; + } + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; this._x1 = x, this._y1 = y; break; + case 2: this._point = 3; // proceed + default: point$1(this, x, y); break; + } + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } +}; - function CardinalClosed(context, tension) { - this._context = context; - this._k = (1 - tension) / 6; +var cardinal = (function custom(tension) { + + function cardinal(context) { + return new Cardinal(context, tension); } - CardinalClosed.prototype = { - areaStart: noop, - areaEnd: noop, - lineStart: function() { - this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = - this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 1: { - this._context.moveTo(this._x3, this._y3); - this._context.closePath(); - break; - } - case 2: { - this._context.lineTo(this._x3, this._y3); - this._context.closePath(); - break; - } - case 3: { - this.point(this._x3, this._y3); - this.point(this._x4, this._y4); - this.point(this._x5, this._y5); - break; - } - } - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._x3 = x, this._y3 = y; break; - case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break; - case 2: this._point = 3; this._x5 = x, this._y5 = y; break; - default: point$1(this, x, y); break; - } - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; - } + cardinal.tension = function(tension) { + return custom(+tension); }; - var cardinalClosed = (function custom(tension) { + return cardinal; +})(0); - function cardinal(context) { - return new CardinalClosed(context, tension); +function CardinalClosed(context, tension) { + this._context = context; + this._k = (1 - tension) / 6; +} + +CardinalClosed.prototype = { + areaStart: noop, + areaEnd: noop, + lineStart: function() { + this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = + this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 1: { + this._context.moveTo(this._x3, this._y3); + this._context.closePath(); + break; + } + case 2: { + this._context.lineTo(this._x3, this._y3); + this._context.closePath(); + break; + } + case 3: { + this.point(this._x3, this._y3); + this.point(this._x4, this._y4); + this.point(this._x5, this._y5); + break; + } } + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._x3 = x, this._y3 = y; break; + case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break; + case 2: this._point = 3; this._x5 = x, this._y5 = y; break; + default: point$1(this, x, y); break; + } + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } +}; - cardinal.tension = function(tension) { - return custom(+tension); - }; +var cardinalClosed = (function custom(tension) { - return cardinal; - })(0); - - function CardinalOpen(context, tension) { - this._context = context; - this._k = (1 - tension) / 6; + function cardinal(context) { + return new CardinalClosed(context, tension); } - CardinalOpen.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = this._x2 = - this._y0 = this._y1 = this._y2 = NaN; - this._point = 0; - }, - lineEnd: function() { - if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; break; - case 1: this._point = 2; break; - case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break; - case 3: this._point = 4; // proceed - default: point$1(this, x, y); break; - } - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; - } + cardinal.tension = function(tension) { + return custom(+tension); }; - var cardinalOpen = (function custom(tension) { + return cardinal; +})(0); - function cardinal(context) { - return new CardinalOpen(context, tension); +function CardinalOpen(context, tension) { + this._context = context; + this._k = (1 - tension) / 6; +} + +CardinalOpen.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = this._x2 = + this._y0 = this._y1 = this._y2 = NaN; + this._point = 0; + }, + lineEnd: function() { + if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; break; + case 1: this._point = 2; break; + case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break; + case 3: this._point = 4; // proceed + default: point$1(this, x, y); break; } + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } +}; - cardinal.tension = function(tension) { - return custom(+tension); - }; +var cardinalOpen = (function custom(tension) { - return cardinal; - })(0); + function cardinal(context) { + return new CardinalOpen(context, tension); + } - function point$2(that, x, y) { - var x1 = that._x1, - y1 = that._y1, - x2 = that._x2, - y2 = that._y2; + cardinal.tension = function(tension) { + return custom(+tension); + }; - if (that._l01_a > epsilon$1) { - var a = 2 * that._l01_2a + 3 * that._l01_a * that._l12_a + that._l12_2a, - n = 3 * that._l01_a * (that._l01_a + that._l12_a); - x1 = (x1 * a - that._x0 * that._l12_2a + that._x2 * that._l01_2a) / n; - y1 = (y1 * a - that._y0 * that._l12_2a + that._y2 * that._l01_2a) / n; - } + return cardinal; +})(0); - if (that._l23_a > epsilon$1) { - var b = 2 * that._l23_2a + 3 * that._l23_a * that._l12_a + that._l12_2a, - m = 3 * that._l23_a * (that._l23_a + that._l12_a); - x2 = (x2 * b + that._x1 * that._l23_2a - x * that._l12_2a) / m; - y2 = (y2 * b + that._y1 * that._l23_2a - y * that._l12_2a) / m; - } +function point$2(that, x, y) { + var x1 = that._x1, + y1 = that._y1, + x2 = that._x2, + y2 = that._y2; - that._context.bezierCurveTo(x1, y1, x2, y2, that._x2, that._y2); + if (that._l01_a > epsilon$1) { + var a = 2 * that._l01_2a + 3 * that._l01_a * that._l12_a + that._l12_2a, + n = 3 * that._l01_a * (that._l01_a + that._l12_a); + x1 = (x1 * a - that._x0 * that._l12_2a + that._x2 * that._l01_2a) / n; + y1 = (y1 * a - that._y0 * that._l12_2a + that._y2 * that._l01_2a) / n; } - function CatmullRom(context, alpha) { - this._context = context; - this._alpha = alpha; + if (that._l23_a > epsilon$1) { + var b = 2 * that._l23_2a + 3 * that._l23_a * that._l12_a + that._l12_2a, + m = 3 * that._l23_a * (that._l23_a + that._l12_a); + x2 = (x2 * b + that._x1 * that._l23_2a - x * that._l12_2a) / m; + y2 = (y2 * b + that._y1 * that._l23_2a - y * that._l12_2a) / m; } - CatmullRom.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = this._x2 = - this._y0 = this._y1 = this._y2 = NaN; - this._l01_a = this._l12_a = this._l23_a = - this._l01_2a = this._l12_2a = this._l23_2a = - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 2: this._context.lineTo(this._x2, this._y2); break; - case 3: this.point(this, this._x2, this._y2); break; - } - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; + that._context.bezierCurveTo(x1, y1, x2, y2, that._x2, that._y2); +} - if (this._point) { - var x23 = this._x2 - x, - y23 = this._y2 - y; - this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); - } +function CatmullRom(context, alpha) { + this._context = context; + this._alpha = alpha; +} - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; break; - case 2: this._point = 3; // proceed - default: point$2(this, x, y); break; - } +CatmullRom.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = this._x2 = + this._y0 = this._y1 = this._y2 = NaN; + this._l01_a = this._l12_a = this._l23_a = + this._l01_2a = this._l12_2a = this._l23_2a = + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 2: this._context.lineTo(this._x2, this._y2); break; + case 3: this.point(this._x2, this._y2); break; + } + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; - this._l01_a = this._l12_a, this._l12_a = this._l23_a; - this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + if (this._point) { + var x23 = this._x2 - x, + y23 = this._y2 - y; + this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); } - }; - var catmullRom = (function custom(alpha) { - - function catmullRom(context) { - return alpha ? new CatmullRom(context, alpha) : new Cardinal(context, 0); + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; break; + case 2: this._point = 3; // proceed + default: point$2(this, x, y); break; } - catmullRom.alpha = function(alpha) { - return custom(+alpha); - }; + this._l01_a = this._l12_a, this._l12_a = this._l23_a; + this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } +}; - return catmullRom; - })(0.5); +var catmullRom = (function custom(alpha) { - function CatmullRomClosed(context, alpha) { - this._context = context; - this._alpha = alpha; + function catmullRom(context) { + return alpha ? new CatmullRom(context, alpha) : new Cardinal(context, 0); } - CatmullRomClosed.prototype = { - areaStart: noop, - areaEnd: noop, - lineStart: function() { - this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = - this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN; - this._l01_a = this._l12_a = this._l23_a = - this._l01_2a = this._l12_2a = this._l23_2a = - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 1: { - this._context.moveTo(this._x3, this._y3); - this._context.closePath(); - break; - } - case 2: { - this._context.lineTo(this._x3, this._y3); - this._context.closePath(); - break; - } - case 3: { - this.point(this._x3, this._y3); - this.point(this._x4, this._y4); - this.point(this._x5, this._y5); - break; - } - } - }, - point: function(x, y) { - x = +x, y = +y; + catmullRom.alpha = function(alpha) { + return custom(+alpha); + }; - if (this._point) { - var x23 = this._x2 - x, - y23 = this._y2 - y; - this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); - } + return catmullRom; +})(0.5); - switch (this._point) { - case 0: this._point = 1; this._x3 = x, this._y3 = y; break; - case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break; - case 2: this._point = 3; this._x5 = x, this._y5 = y; break; - default: point$2(this, x, y); break; +function CatmullRomClosed(context, alpha) { + this._context = context; + this._alpha = alpha; +} + +CatmullRomClosed.prototype = { + areaStart: noop, + areaEnd: noop, + lineStart: function() { + this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = + this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN; + this._l01_a = this._l12_a = this._l23_a = + this._l01_2a = this._l12_2a = this._l23_2a = + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 1: { + this._context.moveTo(this._x3, this._y3); + this._context.closePath(); + break; } + case 2: { + this._context.lineTo(this._x3, this._y3); + this._context.closePath(); + break; + } + case 3: { + this.point(this._x3, this._y3); + this.point(this._x4, this._y4); + this.point(this._x5, this._y5); + break; + } + } + }, + point: function(x, y) { + x = +x, y = +y; - this._l01_a = this._l12_a, this._l12_a = this._l23_a; - this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + if (this._point) { + var x23 = this._x2 - x, + y23 = this._y2 - y; + this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); } - }; - var catmullRomClosed = (function custom(alpha) { - - function catmullRom(context) { - return alpha ? new CatmullRomClosed(context, alpha) : new CardinalClosed(context, 0); + switch (this._point) { + case 0: this._point = 1; this._x3 = x, this._y3 = y; break; + case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break; + case 2: this._point = 3; this._x5 = x, this._y5 = y; break; + default: point$2(this, x, y); break; } - catmullRom.alpha = function(alpha) { - return custom(+alpha); - }; + this._l01_a = this._l12_a, this._l12_a = this._l23_a; + this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } +}; - return catmullRom; - })(0.5); +var catmullRomClosed = (function custom(alpha) { - function CatmullRomOpen(context, alpha) { - this._context = context; - this._alpha = alpha; + function catmullRom(context) { + return alpha ? new CatmullRomClosed(context, alpha) : new CardinalClosed(context, 0); } - CatmullRomOpen.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = this._x2 = - this._y0 = this._y1 = this._y2 = NaN; - this._l01_a = this._l12_a = this._l23_a = - this._l01_2a = this._l12_2a = this._l23_2a = - this._point = 0; - }, - lineEnd: function() { - if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; + catmullRom.alpha = function(alpha) { + return custom(+alpha); + }; - if (this._point) { - var x23 = this._x2 - x, - y23 = this._y2 - y; - this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); - } + return catmullRom; +})(0.5); - switch (this._point) { - case 0: this._point = 1; break; - case 1: this._point = 2; break; - case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break; - case 3: this._point = 4; // proceed - default: point$2(this, x, y); break; - } +function CatmullRomOpen(context, alpha) { + this._context = context; + this._alpha = alpha; +} - this._l01_a = this._l12_a, this._l12_a = this._l23_a; - this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; +CatmullRomOpen.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = this._x2 = + this._y0 = this._y1 = this._y2 = NaN; + this._l01_a = this._l12_a = this._l23_a = + this._l01_2a = this._l12_2a = this._l23_2a = + this._point = 0; + }, + lineEnd: function() { + if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + + if (this._point) { + var x23 = this._x2 - x, + y23 = this._y2 - y; + this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); } - }; - var catmullRomOpen = (function custom(alpha) { - - function catmullRom(context) { - return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0); + switch (this._point) { + case 0: this._point = 1; break; + case 1: this._point = 2; break; + case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break; + case 3: this._point = 4; // proceed + default: point$2(this, x, y); break; } - catmullRom.alpha = function(alpha) { - return custom(+alpha); - }; + this._l01_a = this._l12_a, this._l12_a = this._l23_a; + this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } +}; - return catmullRom; - })(0.5); +var catmullRomOpen = (function custom(alpha) { - function LinearClosed(context) { - this._context = context; + function catmullRom(context) { + return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0); } - LinearClosed.prototype = { - areaStart: noop, - areaEnd: noop, - lineStart: function() { - this._point = 0; - }, - lineEnd: function() { - if (this._point) this._context.closePath(); - }, - point: function(x, y) { - x = +x, y = +y; - if (this._point) this._context.lineTo(x, y); - else this._point = 1, this._context.moveTo(x, y); - } + catmullRom.alpha = function(alpha) { + return custom(+alpha); }; - function linearClosed(context) { - return new LinearClosed(context); - } + return catmullRom; +})(0.5); - function sign(x) { - return x < 0 ? -1 : 1; - } +function LinearClosed(context) { + this._context = context; +} - // Calculate the slopes of the tangents (Hermite-type interpolation) based on - // the following paper: Steffen, M. 1990. A Simple Method for Monotonic - // Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO. - // NOV(II), P. 443, 1990. - function slope3(that, x2, y2) { - var h0 = that._x1 - that._x0, - h1 = x2 - that._x1, - s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0), - s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0), - p = (s0 * h1 + s1 * h0) / (h0 + h1); - return (sign(s0) + sign(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0; +LinearClosed.prototype = { + areaStart: noop, + areaEnd: noop, + lineStart: function() { + this._point = 0; + }, + lineEnd: function() { + if (this._point) this._context.closePath(); + }, + point: function(x, y) { + x = +x, y = +y; + if (this._point) this._context.lineTo(x, y); + else this._point = 1, this._context.moveTo(x, y); } +}; - // Calculate a one-sided slope. - function slope2(that, t) { - var h = that._x1 - that._x0; - return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t; - } +var linearClosed = function(context) { + return new LinearClosed(context); +} - // According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations - // "you can express cubic Hermite interpolation in terms of cubic Bézier curves - // with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1". - function point$3(that, t0, t1) { - var x0 = that._x0, - y0 = that._y0, - x1 = that._x1, - y1 = that._y1, - dx = (x1 - x0) / 3; - that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1); - } +function sign(x) { + return x < 0 ? -1 : 1; +} - function MonotoneX(context) { - this._context = context; - } +// Calculate the slopes of the tangents (Hermite-type interpolation) based on +// the following paper: Steffen, M. 1990. A Simple Method for Monotonic +// Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO. +// NOV(II), P. 443, 1990. +function slope3(that, x2, y2) { + var h0 = that._x1 - that._x0, + h1 = x2 - that._x1, + s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0), + s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0), + p = (s0 * h1 + s1 * h0) / (h0 + h1); + return (sign(s0) + sign(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0; +} - MonotoneX.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = - this._y0 = this._y1 = - this._t0 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 2: this._context.lineTo(this._x1, this._y1); break; - case 3: point$3(this, this._t0, slope2(this, this._t0)); break; - } - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - var t1 = NaN; +// Calculate a one-sided slope. +function slope2(that, t) { + var h = that._x1 - that._x0; + return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t; +} - x = +x, y = +y; - if (x === this._x1 && y === this._y1) return; // Ignore coincident points. - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; break; - case 2: this._point = 3; point$3(this, slope2(this, t1 = slope3(this, x, y)), t1); break; - default: point$3(this, this._t0, t1 = slope3(this, x, y)); break; - } +// According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations +// "you can express cubic Hermite interpolation in terms of cubic Bézier curves +// with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1". +function point$3(that, t0, t1) { + var x0 = that._x0, + y0 = that._y0, + x1 = that._x1, + y1 = that._y1, + dx = (x1 - x0) / 3; + that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1); +} - this._x0 = this._x1, this._x1 = x; - this._y0 = this._y1, this._y1 = y; - this._t0 = t1; +function MonotoneX(context) { + this._context = context; +} + +MonotoneX.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = + this._y0 = this._y1 = + this._t0 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 2: this._context.lineTo(this._x1, this._y1); break; + case 3: point$3(this, this._t0, slope2(this, this._t0)); break; } - } + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + var t1 = NaN; - function MonotoneY(context) { - this._context = new ReflectContext(context); + x = +x, y = +y; + if (x === this._x1 && y === this._y1) return; // Ignore coincident points. + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; break; + case 2: this._point = 3; point$3(this, slope2(this, t1 = slope3(this, x, y)), t1); break; + default: point$3(this, this._t0, t1 = slope3(this, x, y)); break; + } + + this._x0 = this._x1, this._x1 = x; + this._y0 = this._y1, this._y1 = y; + this._t0 = t1; } +} - (MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function(x, y) { - MonotoneX.prototype.point.call(this, y, x); - }; +function MonotoneY(context) { + this._context = new ReflectContext(context); +} - function ReflectContext(context) { - this._context = context; - } +(MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function(x, y) { + MonotoneX.prototype.point.call(this, y, x); +}; - ReflectContext.prototype = { - moveTo: function(x, y) { this._context.moveTo(y, x); }, - closePath: function() { this._context.closePath(); }, - lineTo: function(x, y) { this._context.lineTo(y, x); }, - bezierCurveTo: function(x1, y1, x2, y2, x, y) { this._context.bezierCurveTo(y1, x1, y2, x2, y, x); } - }; +function ReflectContext(context) { + this._context = context; +} - function monotoneX(context) { - return new MonotoneX(context); - } +ReflectContext.prototype = { + moveTo: function(x, y) { this._context.moveTo(y, x); }, + closePath: function() { this._context.closePath(); }, + lineTo: function(x, y) { this._context.lineTo(y, x); }, + bezierCurveTo: function(x1, y1, x2, y2, x, y) { this._context.bezierCurveTo(y1, x1, y2, x2, y, x); } +}; - function monotoneY(context) { - return new MonotoneY(context); - } +function monotoneX(context) { + return new MonotoneX(context); +} - function Natural(context) { - this._context = context; - } +function monotoneY(context) { + return new MonotoneY(context); +} - Natural.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x = []; - this._y = []; - }, - lineEnd: function() { - var x = this._x, - y = this._y, - n = x.length; +function Natural(context) { + this._context = context; +} - if (n) { - this._line ? this._context.lineTo(x[0], y[0]) : this._context.moveTo(x[0], y[0]); - if (n === 2) { - this._context.lineTo(x[1], y[1]); - } else { - var px = controlPoints(x), - py = controlPoints(y); - for (var i0 = 0, i1 = 1; i1 < n; ++i0, ++i1) { - this._context.bezierCurveTo(px[0][i0], py[0][i0], px[1][i0], py[1][i0], x[i1], y[i1]); - } +Natural.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x = []; + this._y = []; + }, + lineEnd: function() { + var x = this._x, + y = this._y, + n = x.length; + + if (n) { + this._line ? this._context.lineTo(x[0], y[0]) : this._context.moveTo(x[0], y[0]); + if (n === 2) { + this._context.lineTo(x[1], y[1]); + } else { + var px = controlPoints(x), + py = controlPoints(y); + for (var i0 = 0, i1 = 1; i1 < n; ++i0, ++i1) { + this._context.bezierCurveTo(px[0][i0], py[0][i0], px[1][i0], py[1][i0], x[i1], y[i1]); } } - - if (this._line || (this._line !== 0 && n === 1)) this._context.closePath(); - this._line = 1 - this._line; - this._x = this._y = null; - }, - point: function(x, y) { - this._x.push(+x); - this._y.push(+y); } - }; - // See https://www.particleincell.com/2012/bezier-splines/ for derivation. - function controlPoints(x) { - var i, - n = x.length - 1, - m, - a = new Array(n), - b = new Array(n), - r = new Array(n); - a[0] = 0, b[0] = 2, r[0] = x[0] + 2 * x[1]; - for (i = 1; i < n - 1; ++i) a[i] = 1, b[i] = 4, r[i] = 4 * x[i] + 2 * x[i + 1]; - a[n - 1] = 2, b[n - 1] = 7, r[n - 1] = 8 * x[n - 1] + x[n]; - for (i = 1; i < n; ++i) m = a[i] / b[i - 1], b[i] -= m, r[i] -= m * r[i - 1]; - a[n - 1] = r[n - 1] / b[n - 1]; - for (i = n - 2; i >= 0; --i) a[i] = (r[i] - a[i + 1]) / b[i]; - b[n - 1] = (x[n] + a[n - 1]) / 2; - for (i = 0; i < n - 1; ++i) b[i] = 2 * x[i + 1] - a[i + 1]; - return [a, b]; + if (this._line || (this._line !== 0 && n === 1)) this._context.closePath(); + this._line = 1 - this._line; + this._x = this._y = null; + }, + point: function(x, y) { + this._x.push(+x); + this._y.push(+y); } +}; - function natural(context) { - return new Natural(context); - } +// See https://www.particleincell.com/2012/bezier-splines/ for derivation. +function controlPoints(x) { + var i, + n = x.length - 1, + m, + a = new Array(n), + b = new Array(n), + r = new Array(n); + a[0] = 0, b[0] = 2, r[0] = x[0] + 2 * x[1]; + for (i = 1; i < n - 1; ++i) a[i] = 1, b[i] = 4, r[i] = 4 * x[i] + 2 * x[i + 1]; + a[n - 1] = 2, b[n - 1] = 7, r[n - 1] = 8 * x[n - 1] + x[n]; + for (i = 1; i < n; ++i) m = a[i] / b[i - 1], b[i] -= m, r[i] -= m * r[i - 1]; + a[n - 1] = r[n - 1] / b[n - 1]; + for (i = n - 2; i >= 0; --i) a[i] = (r[i] - a[i + 1]) / b[i]; + b[n - 1] = (x[n] + a[n - 1]) / 2; + for (i = 0; i < n - 1; ++i) b[i] = 2 * x[i + 1] - a[i + 1]; + return [a, b]; +} - function Step(context, t) { - this._context = context; - this._t = t; - } +var natural = function(context) { + return new Natural(context); +} - Step.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x = this._y = NaN; - this._point = 0; - }, - lineEnd: function() { - if (0 < this._t && this._t < 1 && this._point === 2) this._context.lineTo(this._x, this._y); - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - if (this._line >= 0) this._t = 1 - this._t, this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; // proceed - default: { - if (this._t <= 0) { - this._context.lineTo(this._x, y); - this._context.lineTo(x, y); - } else { - var x1 = this._x * (1 - this._t) + x * this._t; - this._context.lineTo(x1, this._y); - this._context.lineTo(x1, y); - } - break; +function Step(context, t) { + this._context = context; + this._t = t; +} + +Step.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x = this._y = NaN; + this._point = 0; + }, + lineEnd: function() { + if (0 < this._t && this._t < 1 && this._point === 2) this._context.lineTo(this._x, this._y); + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + if (this._line >= 0) this._t = 1 - this._t, this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; // proceed + default: { + if (this._t <= 0) { + this._context.lineTo(this._x, y); + this._context.lineTo(x, y); + } else { + var x1 = this._x * (1 - this._t) + x * this._t; + this._context.lineTo(x1, this._y); + this._context.lineTo(x1, y); } + break; } - this._x = x, this._y = y; } - }; - - function step(context) { - return new Step(context, 0.5); + this._x = x, this._y = y; } +}; - function stepBefore(context) { - return new Step(context, 0); - } +var step = function(context) { + return new Step(context, 0.5); +} - function stepAfter(context) { - return new Step(context, 1); - } +function stepBefore(context) { + return new Step(context, 0); +} - var slice$2 = Array.prototype.slice; +function stepAfter(context) { + return new Step(context, 1); +} - function none(series, order) { - if (!((n = series.length) > 1)) return; - for (var i = 1, s0, s1 = series[order[0]], n, m = s1.length; i < n; ++i) { - s0 = s1, s1 = series[order[i]]; - for (var j = 0; j < m; ++j) { - s1[j][1] += s1[j][0] = isNaN(s0[j][1]) ? s0[j][0] : s0[j][1]; - } +var slice$2 = Array.prototype.slice; + +var none = function(series, order) { + if (!((n = series.length) > 1)) return; + for (var i = 1, s0, s1 = series[order[0]], n, m = s1.length; i < n; ++i) { + s0 = s1, s1 = series[order[i]]; + for (var j = 0; j < m; ++j) { + s1[j][1] += s1[j][0] = isNaN(s0[j][1]) ? s0[j][0] : s0[j][1]; } } +} - function none$1(series) { - var n = series.length, o = new Array(n); - while (--n >= 0) o[n] = n; - return o; - } +var none$1 = function(series) { + var n = series.length, o = new Array(n); + while (--n >= 0) o[n] = n; + return o; +} - function stackValue(d, key) { - return d[key]; - } +function stackValue(d, key) { + return d[key]; +} - function stack() { - var keys = constant$1([]), - order = none$1, - offset = none, - value = stackValue; +var stack = function() { + var keys = constant$2([]), + order = none$1, + offset = none, + value = stackValue; - function stack(data) { - var kz = keys.apply(this, arguments), - i, - m = data.length, - n = kz.length, - sz = new Array(n), - oz; + function stack(data) { + var kz = keys.apply(this, arguments), + i, + m = data.length, + n = kz.length, + sz = new Array(n), + oz; - for (i = 0; i < n; ++i) { - for (var ki = kz[i], si = sz[i] = new Array(m), j = 0, sij; j < m; ++j) { - si[j] = sij = [0, +value(data[j], ki, j, data)]; - sij.data = data[j]; - } - si.key = ki; + for (i = 0; i < n; ++i) { + for (var ki = kz[i], si = sz[i] = new Array(m), j = 0, sij; j < m; ++j) { + si[j] = sij = [0, +value(data[j], ki, j, data)]; + sij.data = data[j]; } + si.key = ki; + } - for (i = 0, oz = order(sz); i < n; ++i) { - sz[oz[i]].index = i; - } - - offset(sz, oz); - return sz; + for (i = 0, oz = order(sz); i < n; ++i) { + sz[oz[i]].index = i; } - stack.keys = function(_) { - return arguments.length ? (keys = typeof _ === "function" ? _ : constant$1(slice$2.call(_)), stack) : keys; - }; + offset(sz, oz); + return sz; + } - stack.value = function(_) { - return arguments.length ? (value = typeof _ === "function" ? _ : constant$1(+_), stack) : value; - }; + stack.keys = function(_) { + return arguments.length ? (keys = typeof _ === "function" ? _ : constant$2(slice$2.call(_)), stack) : keys; + }; - stack.order = function(_) { - return arguments.length ? (order = _ == null ? none$1 : typeof _ === "function" ? _ : constant$1(slice$2.call(_)), stack) : order; - }; + stack.value = function(_) { + return arguments.length ? (value = typeof _ === "function" ? _ : constant$2(+_), stack) : value; + }; - stack.offset = function(_) { - return arguments.length ? (offset = _ == null ? none : _, stack) : offset; - }; + stack.order = function(_) { + return arguments.length ? (order = _ == null ? none$1 : typeof _ === "function" ? _ : constant$2(slice$2.call(_)), stack) : order; + }; - return stack; - } + stack.offset = function(_) { + return arguments.length ? (offset = _ == null ? none : _, stack) : offset; + }; - function expand(series, order) { - if (!((n = series.length) > 0)) return; - for (var i, n, j = 0, m = series[0].length, y; j < m; ++j) { - for (y = i = 0; i < n; ++i) y += series[i][j][1] || 0; - if (y) for (i = 0; i < n; ++i) series[i][j][1] /= y; - } - none(series, order); + return stack; +} + +var expand = function(series, order) { + if (!((n = series.length) > 0)) return; + for (var i, n, j = 0, m = series[0].length, y; j < m; ++j) { + for (y = i = 0; i < n; ++i) y += series[i][j][1] || 0; + if (y) for (i = 0; i < n; ++i) series[i][j][1] /= y; } + none(series, order); +} - function silhouette(series, order) { - if (!((n = series.length) > 0)) return; - for (var j = 0, s0 = series[order[0]], n, m = s0.length; j < m; ++j) { - for (var i = 0, y = 0; i < n; ++i) y += series[i][j][1] || 0; - s0[j][1] += s0[j][0] = -y / 2; - } - none(series, order); +var silhouette = function(series, order) { + if (!((n = series.length) > 0)) return; + for (var j = 0, s0 = series[order[0]], n, m = s0.length; j < m; ++j) { + for (var i = 0, y = 0; i < n; ++i) y += series[i][j][1] || 0; + s0[j][1] += s0[j][0] = -y / 2; } + none(series, order); +} - function wiggle(series, order) { - if (!((n = series.length) > 0) || !((m = (s0 = series[order[0]]).length) > 0)) return; - for (var y = 0, j = 1, s0, m, n; j < m; ++j) { - for (var i = 0, s1 = 0, s2 = 0; i < n; ++i) { - var si = series[order[i]], - sij0 = si[j][1] || 0, - sij1 = si[j - 1][1] || 0, - s3 = (sij0 - sij1) / 2; - for (var k = 0; k < i; ++k) { - var sk = series[order[k]], - skj0 = sk[j][1] || 0, - skj1 = sk[j - 1][1] || 0; - s3 += skj0 - skj1; - } - s1 += sij0, s2 += s3 * sij0; +var wiggle = function(series, order) { + if (!((n = series.length) > 0) || !((m = (s0 = series[order[0]]).length) > 0)) return; + for (var y = 0, j = 1, s0, m, n; j < m; ++j) { + for (var i = 0, s1 = 0, s2 = 0; i < n; ++i) { + var si = series[order[i]], + sij0 = si[j][1] || 0, + sij1 = si[j - 1][1] || 0, + s3 = (sij0 - sij1) / 2; + for (var k = 0; k < i; ++k) { + var sk = series[order[k]], + skj0 = sk[j][1] || 0, + skj1 = sk[j - 1][1] || 0; + s3 += skj0 - skj1; } - s0[j - 1][1] += s0[j - 1][0] = y; - if (s1) y -= s2 / s1; + s1 += sij0, s2 += s3 * sij0; } s0[j - 1][1] += s0[j - 1][0] = y; - none(series, order); + if (s1) y -= s2 / s1; } + s0[j - 1][1] += s0[j - 1][0] = y; + none(series, order); +} - function ascending$1(series) { - var sums = series.map(sum$1); - return none$1(series).sort(function(a, b) { return sums[a] - sums[b]; }); - } +var ascending$1 = function(series) { + var sums = series.map(sum$1); + return none$1(series).sort(function(a, b) { return sums[a] - sums[b]; }); +} - function sum$1(series) { - var s = 0, i = -1, n = series.length, v; - while (++i < n) if (v = +series[i][1]) s += v; - return s; - } +function sum$1(series) { + var s = 0, i = -1, n = series.length, v; + while (++i < n) if (v = +series[i][1]) s += v; + return s; +} - function descending$2(series) { - return ascending$1(series).reverse(); - } +var descending$2 = function(series) { + return ascending$1(series).reverse(); +} - function insideOut(series) { - var n = series.length, - i, - j, - sums = series.map(sum$1), - order = none$1(series).sort(function(a, b) { return sums[b] - sums[a]; }), - top = 0, - bottom = 0, - tops = [], - bottoms = []; +var insideOut = function(series) { + var n = series.length, + i, + j, + sums = series.map(sum$1), + order = none$1(series).sort(function(a, b) { return sums[b] - sums[a]; }), + top = 0, + bottom = 0, + tops = [], + bottoms = []; - for (i = 0; i < n; ++i) { - j = order[i]; - if (top < bottom) { - top += sums[j]; - tops.push(j); - } else { - bottom += sums[j]; - bottoms.push(j); - } + for (i = 0; i < n; ++i) { + j = order[i]; + if (top < bottom) { + top += sums[j]; + tops.push(j); + } else { + bottom += sums[j]; + bottoms.push(j); } - - return bottoms.reverse().concat(tops); } - function reverse(series) { - return none$1(series).reverse(); - } + return bottoms.reverse().concat(tops); +} - function define(constructor, factory, prototype) { - constructor.prototype = factory.prototype = prototype; - prototype.constructor = constructor; - } +var reverse = function(series) { + return none$1(series).reverse(); +} - function extend(parent, definition) { - var prototype = Object.create(parent.prototype); - for (var key in definition) prototype[key] = definition[key]; - return prototype; - } +var define = function(constructor, factory, prototype) { + constructor.prototype = factory.prototype = prototype; + prototype.constructor = constructor; +} - function Color() {} +function extend(parent, definition) { + var prototype = Object.create(parent.prototype); + for (var key in definition) prototype[key] = definition[key]; + return prototype; +} - var darker = 0.7; - var brighter = 1 / darker; +function Color() {} - var reHex3 = /^#([0-9a-f]{3})$/; - var reHex6 = /^#([0-9a-f]{6})$/; - var reRgbInteger = /^rgb\(\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*\)$/; - var reRgbPercent = /^rgb\(\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*\)$/; - var reRgbaInteger = /^rgba\(\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*,\s*([-+]?\d+(?:\.\d+)?)\s*\)$/; - var reRgbaPercent = /^rgba\(\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)\s*\)$/; - var reHslPercent = /^hsl\(\s*([-+]?\d+(?:\.\d+)?)\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*\)$/; - var reHslaPercent = /^hsla\(\s*([-+]?\d+(?:\.\d+)?)\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)\s*\)$/; - var named = { - aliceblue: 0xf0f8ff, - antiquewhite: 0xfaebd7, - aqua: 0x00ffff, - aquamarine: 0x7fffd4, - azure: 0xf0ffff, - beige: 0xf5f5dc, - bisque: 0xffe4c4, - black: 0x000000, - blanchedalmond: 0xffebcd, - blue: 0x0000ff, - blueviolet: 0x8a2be2, - brown: 0xa52a2a, - burlywood: 0xdeb887, - cadetblue: 0x5f9ea0, - chartreuse: 0x7fff00, - chocolate: 0xd2691e, - coral: 0xff7f50, - cornflowerblue: 0x6495ed, - cornsilk: 0xfff8dc, - crimson: 0xdc143c, - cyan: 0x00ffff, - darkblue: 0x00008b, - darkcyan: 0x008b8b, - darkgoldenrod: 0xb8860b, - darkgray: 0xa9a9a9, - darkgreen: 0x006400, - darkgrey: 0xa9a9a9, - darkkhaki: 0xbdb76b, - darkmagenta: 0x8b008b, - darkolivegreen: 0x556b2f, - darkorange: 0xff8c00, - darkorchid: 0x9932cc, - darkred: 0x8b0000, - darksalmon: 0xe9967a, - darkseagreen: 0x8fbc8f, - darkslateblue: 0x483d8b, - darkslategray: 0x2f4f4f, - darkslategrey: 0x2f4f4f, - darkturquoise: 0x00ced1, - darkviolet: 0x9400d3, - deeppink: 0xff1493, - deepskyblue: 0x00bfff, - dimgray: 0x696969, - dimgrey: 0x696969, - dodgerblue: 0x1e90ff, - firebrick: 0xb22222, - floralwhite: 0xfffaf0, - forestgreen: 0x228b22, - fuchsia: 0xff00ff, - gainsboro: 0xdcdcdc, - ghostwhite: 0xf8f8ff, - gold: 0xffd700, - goldenrod: 0xdaa520, - gray: 0x808080, - green: 0x008000, - greenyellow: 0xadff2f, - grey: 0x808080, - honeydew: 0xf0fff0, - hotpink: 0xff69b4, - indianred: 0xcd5c5c, - indigo: 0x4b0082, - ivory: 0xfffff0, - khaki: 0xf0e68c, - lavender: 0xe6e6fa, - lavenderblush: 0xfff0f5, - lawngreen: 0x7cfc00, - lemonchiffon: 0xfffacd, - lightblue: 0xadd8e6, - lightcoral: 0xf08080, - lightcyan: 0xe0ffff, - lightgoldenrodyellow: 0xfafad2, - lightgray: 0xd3d3d3, - lightgreen: 0x90ee90, - lightgrey: 0xd3d3d3, - lightpink: 0xffb6c1, - lightsalmon: 0xffa07a, - lightseagreen: 0x20b2aa, - lightskyblue: 0x87cefa, - lightslategray: 0x778899, - lightslategrey: 0x778899, - lightsteelblue: 0xb0c4de, - lightyellow: 0xffffe0, - lime: 0x00ff00, - limegreen: 0x32cd32, - linen: 0xfaf0e6, - magenta: 0xff00ff, - maroon: 0x800000, - mediumaquamarine: 0x66cdaa, - mediumblue: 0x0000cd, - mediumorchid: 0xba55d3, - mediumpurple: 0x9370db, - mediumseagreen: 0x3cb371, - mediumslateblue: 0x7b68ee, - mediumspringgreen: 0x00fa9a, - mediumturquoise: 0x48d1cc, - mediumvioletred: 0xc71585, - midnightblue: 0x191970, - mintcream: 0xf5fffa, - mistyrose: 0xffe4e1, - moccasin: 0xffe4b5, - navajowhite: 0xffdead, - navy: 0x000080, - oldlace: 0xfdf5e6, - olive: 0x808000, - olivedrab: 0x6b8e23, - orange: 0xffa500, - orangered: 0xff4500, - orchid: 0xda70d6, - palegoldenrod: 0xeee8aa, - palegreen: 0x98fb98, - paleturquoise: 0xafeeee, - palevioletred: 0xdb7093, - papayawhip: 0xffefd5, - peachpuff: 0xffdab9, - peru: 0xcd853f, - pink: 0xffc0cb, - plum: 0xdda0dd, - powderblue: 0xb0e0e6, - purple: 0x800080, - rebeccapurple: 0x663399, - red: 0xff0000, - rosybrown: 0xbc8f8f, - royalblue: 0x4169e1, - saddlebrown: 0x8b4513, - salmon: 0xfa8072, - sandybrown: 0xf4a460, - seagreen: 0x2e8b57, - seashell: 0xfff5ee, - sienna: 0xa0522d, - silver: 0xc0c0c0, - skyblue: 0x87ceeb, - slateblue: 0x6a5acd, - slategray: 0x708090, - slategrey: 0x708090, - snow: 0xfffafa, - springgreen: 0x00ff7f, - steelblue: 0x4682b4, - tan: 0xd2b48c, - teal: 0x008080, - thistle: 0xd8bfd8, - tomato: 0xff6347, - turquoise: 0x40e0d0, - violet: 0xee82ee, - wheat: 0xf5deb3, - white: 0xffffff, - whitesmoke: 0xf5f5f5, - yellow: 0xffff00, - yellowgreen: 0x9acd32 - }; +var darker = 0.7; +var brighter = 1 / darker; - define(Color, color, { - displayable: function() { - return this.rgb().displayable(); - }, - toString: function() { - return this.rgb() + ""; - } - }); +var reHex3 = /^#([0-9a-f]{3})$/; +var reHex6 = /^#([0-9a-f]{6})$/; +var reRgbInteger = /^rgb\(\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*\)$/; +var reRgbPercent = /^rgb\(\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*\)$/; +var reRgbaInteger = /^rgba\(\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*,\s*([-+]?\d+)\s*,\s*([-+]?\d+(?:\.\d+)?)\s*\)$/; +var reRgbaPercent = /^rgba\(\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)\s*\)$/; +var reHslPercent = /^hsl\(\s*([-+]?\d+(?:\.\d+)?)\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*\)$/; +var reHslaPercent = /^hsla\(\s*([-+]?\d+(?:\.\d+)?)\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)%\s*,\s*([-+]?\d+(?:\.\d+)?)\s*\)$/; - function color(format) { - var m; - format = (format + "").trim().toLowerCase(); - return (m = reHex3.exec(format)) ? (m = parseInt(m[1], 16), new Rgb((m >> 8 & 0xf) | (m >> 4 & 0x0f0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1)) // #f00 - : (m = reHex6.exec(format)) ? rgbn(parseInt(m[1], 16)) // #ff0000 - : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0) - : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%) - : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1) - : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1) - : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%) - : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1) - : named.hasOwnProperty(format) ? rgbn(named[format]) - : format === "transparent" ? new Rgb(NaN, NaN, NaN, 0) - : null; - } +var named = { + aliceblue: 0xf0f8ff, + antiquewhite: 0xfaebd7, + aqua: 0x00ffff, + aquamarine: 0x7fffd4, + azure: 0xf0ffff, + beige: 0xf5f5dc, + bisque: 0xffe4c4, + black: 0x000000, + blanchedalmond: 0xffebcd, + blue: 0x0000ff, + blueviolet: 0x8a2be2, + brown: 0xa52a2a, + burlywood: 0xdeb887, + cadetblue: 0x5f9ea0, + chartreuse: 0x7fff00, + chocolate: 0xd2691e, + coral: 0xff7f50, + cornflowerblue: 0x6495ed, + cornsilk: 0xfff8dc, + crimson: 0xdc143c, + cyan: 0x00ffff, + darkblue: 0x00008b, + darkcyan: 0x008b8b, + darkgoldenrod: 0xb8860b, + darkgray: 0xa9a9a9, + darkgreen: 0x006400, + darkgrey: 0xa9a9a9, + darkkhaki: 0xbdb76b, + darkmagenta: 0x8b008b, + darkolivegreen: 0x556b2f, + darkorange: 0xff8c00, + darkorchid: 0x9932cc, + darkred: 0x8b0000, + darksalmon: 0xe9967a, + darkseagreen: 0x8fbc8f, + darkslateblue: 0x483d8b, + darkslategray: 0x2f4f4f, + darkslategrey: 0x2f4f4f, + darkturquoise: 0x00ced1, + darkviolet: 0x9400d3, + deeppink: 0xff1493, + deepskyblue: 0x00bfff, + dimgray: 0x696969, + dimgrey: 0x696969, + dodgerblue: 0x1e90ff, + firebrick: 0xb22222, + floralwhite: 0xfffaf0, + forestgreen: 0x228b22, + fuchsia: 0xff00ff, + gainsboro: 0xdcdcdc, + ghostwhite: 0xf8f8ff, + gold: 0xffd700, + goldenrod: 0xdaa520, + gray: 0x808080, + green: 0x008000, + greenyellow: 0xadff2f, + grey: 0x808080, + honeydew: 0xf0fff0, + hotpink: 0xff69b4, + indianred: 0xcd5c5c, + indigo: 0x4b0082, + ivory: 0xfffff0, + khaki: 0xf0e68c, + lavender: 0xe6e6fa, + lavenderblush: 0xfff0f5, + lawngreen: 0x7cfc00, + lemonchiffon: 0xfffacd, + lightblue: 0xadd8e6, + lightcoral: 0xf08080, + lightcyan: 0xe0ffff, + lightgoldenrodyellow: 0xfafad2, + lightgray: 0xd3d3d3, + lightgreen: 0x90ee90, + lightgrey: 0xd3d3d3, + lightpink: 0xffb6c1, + lightsalmon: 0xffa07a, + lightseagreen: 0x20b2aa, + lightskyblue: 0x87cefa, + lightslategray: 0x778899, + lightslategrey: 0x778899, + lightsteelblue: 0xb0c4de, + lightyellow: 0xffffe0, + lime: 0x00ff00, + limegreen: 0x32cd32, + linen: 0xfaf0e6, + magenta: 0xff00ff, + maroon: 0x800000, + mediumaquamarine: 0x66cdaa, + mediumblue: 0x0000cd, + mediumorchid: 0xba55d3, + mediumpurple: 0x9370db, + mediumseagreen: 0x3cb371, + mediumslateblue: 0x7b68ee, + mediumspringgreen: 0x00fa9a, + mediumturquoise: 0x48d1cc, + mediumvioletred: 0xc71585, + midnightblue: 0x191970, + mintcream: 0xf5fffa, + mistyrose: 0xffe4e1, + moccasin: 0xffe4b5, + navajowhite: 0xffdead, + navy: 0x000080, + oldlace: 0xfdf5e6, + olive: 0x808000, + olivedrab: 0x6b8e23, + orange: 0xffa500, + orangered: 0xff4500, + orchid: 0xda70d6, + palegoldenrod: 0xeee8aa, + palegreen: 0x98fb98, + paleturquoise: 0xafeeee, + palevioletred: 0xdb7093, + papayawhip: 0xffefd5, + peachpuff: 0xffdab9, + peru: 0xcd853f, + pink: 0xffc0cb, + plum: 0xdda0dd, + powderblue: 0xb0e0e6, + purple: 0x800080, + rebeccapurple: 0x663399, + red: 0xff0000, + rosybrown: 0xbc8f8f, + royalblue: 0x4169e1, + saddlebrown: 0x8b4513, + salmon: 0xfa8072, + sandybrown: 0xf4a460, + seagreen: 0x2e8b57, + seashell: 0xfff5ee, + sienna: 0xa0522d, + silver: 0xc0c0c0, + skyblue: 0x87ceeb, + slateblue: 0x6a5acd, + slategray: 0x708090, + slategrey: 0x708090, + snow: 0xfffafa, + springgreen: 0x00ff7f, + steelblue: 0x4682b4, + tan: 0xd2b48c, + teal: 0x008080, + thistle: 0xd8bfd8, + tomato: 0xff6347, + turquoise: 0x40e0d0, + violet: 0xee82ee, + wheat: 0xf5deb3, + white: 0xffffff, + whitesmoke: 0xf5f5f5, + yellow: 0xffff00, + yellowgreen: 0x9acd32 +}; - function rgbn(n) { - return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1); +define(Color, color, { + displayable: function() { + return this.rgb().displayable(); + }, + toString: function() { + return this.rgb() + ""; } +}); - function rgba(r, g, b, a) { - if (a <= 0) r = g = b = NaN; - return new Rgb(r, g, b, a); - } +function color(format) { + var m; + format = (format + "").trim().toLowerCase(); + return (m = reHex3.exec(format)) ? (m = parseInt(m[1], 16), new Rgb((m >> 8 & 0xf) | (m >> 4 & 0x0f0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1)) // #f00 + : (m = reHex6.exec(format)) ? rgbn(parseInt(m[1], 16)) // #ff0000 + : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0) + : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%) + : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1) + : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1) + : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%) + : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1) + : named.hasOwnProperty(format) ? rgbn(named[format]) + : format === "transparent" ? new Rgb(NaN, NaN, NaN, 0) + : null; +} - function rgbConvert(o) { - if (!(o instanceof Color)) o = color(o); - if (!o) return new Rgb; - o = o.rgb(); - return new Rgb(o.r, o.g, o.b, o.opacity); - } +function rgbn(n) { + return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1); +} - function colorRgb(r, g, b, opacity) { - return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity); - } +function rgba(r, g, b, a) { + if (a <= 0) r = g = b = NaN; + return new Rgb(r, g, b, a); +} - function Rgb(r, g, b, opacity) { - this.r = +r; - this.g = +g; - this.b = +b; - this.opacity = +opacity; - } +function rgbConvert(o) { + if (!(o instanceof Color)) o = color(o); + if (!o) return new Rgb; + o = o.rgb(); + return new Rgb(o.r, o.g, o.b, o.opacity); +} - define(Rgb, colorRgb, extend(Color, { - brighter: function(k) { - k = k == null ? brighter : Math.pow(brighter, k); - return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity); - }, - darker: function(k) { - k = k == null ? darker : Math.pow(darker, k); - return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity); - }, - rgb: function() { - return this; - }, - displayable: function() { - return (0 <= this.r && this.r <= 255) - && (0 <= this.g && this.g <= 255) - && (0 <= this.b && this.b <= 255) - && (0 <= this.opacity && this.opacity <= 1); - }, - toString: function() { - var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a)); - return (a === 1 ? "rgb(" : "rgba(") - + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", " - + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", " - + Math.max(0, Math.min(255, Math.round(this.b) || 0)) - + (a === 1 ? ")" : ", " + a + ")"); - } - })); +function rgb(r, g, b, opacity) { + return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity); +} - function hsla(h, s, l, a) { - if (a <= 0) h = s = l = NaN; - else if (l <= 0 || l >= 1) h = s = NaN; - else if (s <= 0) h = NaN; - return new Hsl(h, s, l, a); - } +function Rgb(r, g, b, opacity) { + this.r = +r; + this.g = +g; + this.b = +b; + this.opacity = +opacity; +} - function hslConvert(o) { - if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity); - if (!(o instanceof Color)) o = color(o); - if (!o) return new Hsl; - if (o instanceof Hsl) return o; - o = o.rgb(); - var r = o.r / 255, - g = o.g / 255, - b = o.b / 255, - min = Math.min(r, g, b), - max = Math.max(r, g, b), - h = NaN, - s = max - min, - l = (max + min) / 2; - if (s) { - if (r === max) h = (g - b) / s + (g < b) * 6; - else if (g === max) h = (b - r) / s + 2; - else h = (r - g) / s + 4; - s /= l < 0.5 ? max + min : 2 - max - min; - h *= 60; - } else { - s = l > 0 && l < 1 ? 0 : h; - } - return new Hsl(h, s, l, o.opacity); +define(Rgb, rgb, extend(Color, { + brighter: function(k) { + k = k == null ? brighter : Math.pow(brighter, k); + return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity); + }, + darker: function(k) { + k = k == null ? darker : Math.pow(darker, k); + return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity); + }, + rgb: function() { + return this; + }, + displayable: function() { + return (0 <= this.r && this.r <= 255) + && (0 <= this.g && this.g <= 255) + && (0 <= this.b && this.b <= 255) + && (0 <= this.opacity && this.opacity <= 1); + }, + toString: function() { + var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a)); + return (a === 1 ? "rgb(" : "rgba(") + + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", " + + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", " + + Math.max(0, Math.min(255, Math.round(this.b) || 0)) + + (a === 1 ? ")" : ", " + a + ")"); } +})); - function colorHsl(h, s, l, opacity) { - return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity); - } +function hsla(h, s, l, a) { + if (a <= 0) h = s = l = NaN; + else if (l <= 0 || l >= 1) h = s = NaN; + else if (s <= 0) h = NaN; + return new Hsl(h, s, l, a); +} - function Hsl(h, s, l, opacity) { - this.h = +h; - this.s = +s; - this.l = +l; - this.opacity = +opacity; +function hslConvert(o) { + if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity); + if (!(o instanceof Color)) o = color(o); + if (!o) return new Hsl; + if (o instanceof Hsl) return o; + o = o.rgb(); + var r = o.r / 255, + g = o.g / 255, + b = o.b / 255, + min = Math.min(r, g, b), + max = Math.max(r, g, b), + h = NaN, + s = max - min, + l = (max + min) / 2; + if (s) { + if (r === max) h = (g - b) / s + (g < b) * 6; + else if (g === max) h = (b - r) / s + 2; + else h = (r - g) / s + 4; + s /= l < 0.5 ? max + min : 2 - max - min; + h *= 60; + } else { + s = l > 0 && l < 1 ? 0 : h; } + return new Hsl(h, s, l, o.opacity); +} - define(Hsl, colorHsl, extend(Color, { - brighter: function(k) { - k = k == null ? brighter : Math.pow(brighter, k); - return new Hsl(this.h, this.s, this.l * k, this.opacity); - }, - darker: function(k) { - k = k == null ? darker : Math.pow(darker, k); - return new Hsl(this.h, this.s, this.l * k, this.opacity); - }, - rgb: function() { - var h = this.h % 360 + (this.h < 0) * 360, - s = isNaN(h) || isNaN(this.s) ? 0 : this.s, - l = this.l, - m2 = l + (l < 0.5 ? l : 1 - l) * s, - m1 = 2 * l - m2; - return new Rgb( - hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2), - hsl2rgb(h, m1, m2), - hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2), - this.opacity - ); - }, - displayable: function() { - return (0 <= this.s && this.s <= 1 || isNaN(this.s)) - && (0 <= this.l && this.l <= 1) - && (0 <= this.opacity && this.opacity <= 1); - } - })); +function hsl(h, s, l, opacity) { + return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity); +} - /* From FvD 13.37, CSS Color Module Level 3 */ - function hsl2rgb(h, m1, m2) { - return (h < 60 ? m1 + (m2 - m1) * h / 60 - : h < 180 ? m2 - : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60 - : m1) * 255; +function Hsl(h, s, l, opacity) { + this.h = +h; + this.s = +s; + this.l = +l; + this.opacity = +opacity; +} + +define(Hsl, hsl, extend(Color, { + brighter: function(k) { + k = k == null ? brighter : Math.pow(brighter, k); + return new Hsl(this.h, this.s, this.l * k, this.opacity); + }, + darker: function(k) { + k = k == null ? darker : Math.pow(darker, k); + return new Hsl(this.h, this.s, this.l * k, this.opacity); + }, + rgb: function() { + var h = this.h % 360 + (this.h < 0) * 360, + s = isNaN(h) || isNaN(this.s) ? 0 : this.s, + l = this.l, + m2 = l + (l < 0.5 ? l : 1 - l) * s, + m1 = 2 * l - m2; + return new Rgb( + hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2), + hsl2rgb(h, m1, m2), + hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2), + this.opacity + ); + }, + displayable: function() { + return (0 <= this.s && this.s <= 1 || isNaN(this.s)) + && (0 <= this.l && this.l <= 1) + && (0 <= this.opacity && this.opacity <= 1); } +})); - var deg2rad = Math.PI / 180; - var rad2deg = 180 / Math.PI; +/* From FvD 13.37, CSS Color Module Level 3 */ +function hsl2rgb(h, m1, m2) { + return (h < 60 ? m1 + (m2 - m1) * h / 60 + : h < 180 ? m2 + : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60 + : m1) * 255; +} - var Kn = 18; - var Xn = 0.950470; - var Yn = 1; - var Zn = 1.088830; - var t0 = 4 / 29; - var t1 = 6 / 29; - var t2 = 3 * t1 * t1; - var t3 = t1 * t1 * t1; - function labConvert(o) { - if (o instanceof Lab) return new Lab(o.l, o.a, o.b, o.opacity); - if (o instanceof Hcl) { - var h = o.h * deg2rad; - return new Lab(o.l, Math.cos(h) * o.c, Math.sin(h) * o.c, o.opacity); - } - if (!(o instanceof Rgb)) o = rgbConvert(o); - var b = rgb2xyz(o.r), - a = rgb2xyz(o.g), - l = rgb2xyz(o.b), - x = xyz2lab((0.4124564 * b + 0.3575761 * a + 0.1804375 * l) / Xn), - y = xyz2lab((0.2126729 * b + 0.7151522 * a + 0.0721750 * l) / Yn), - z = xyz2lab((0.0193339 * b + 0.1191920 * a + 0.9503041 * l) / Zn); - return new Lab(116 * y - 16, 500 * (x - y), 200 * (y - z), o.opacity); - } +var deg2rad = Math.PI / 180; +var rad2deg = 180 / Math.PI; - function lab(l, a, b, opacity) { - return arguments.length === 1 ? labConvert(l) : new Lab(l, a, b, opacity == null ? 1 : opacity); - } +var Kn = 18; +var Xn = 0.950470; +var Yn = 1; +var Zn = 1.088830; +var t0 = 4 / 29; +var t1 = 6 / 29; +var t2 = 3 * t1 * t1; +var t3 = t1 * t1 * t1; - function Lab(l, a, b, opacity) { - this.l = +l; - this.a = +a; - this.b = +b; - this.opacity = +opacity; +function labConvert(o) { + if (o instanceof Lab) return new Lab(o.l, o.a, o.b, o.opacity); + if (o instanceof Hcl) { + var h = o.h * deg2rad; + return new Lab(o.l, Math.cos(h) * o.c, Math.sin(h) * o.c, o.opacity); } + if (!(o instanceof Rgb)) o = rgbConvert(o); + var b = rgb2xyz(o.r), + a = rgb2xyz(o.g), + l = rgb2xyz(o.b), + x = xyz2lab((0.4124564 * b + 0.3575761 * a + 0.1804375 * l) / Xn), + y = xyz2lab((0.2126729 * b + 0.7151522 * a + 0.0721750 * l) / Yn), + z = xyz2lab((0.0193339 * b + 0.1191920 * a + 0.9503041 * l) / Zn); + return new Lab(116 * y - 16, 500 * (x - y), 200 * (y - z), o.opacity); +} - define(Lab, lab, extend(Color, { - brighter: function(k) { - return new Lab(this.l + Kn * (k == null ? 1 : k), this.a, this.b, this.opacity); - }, - darker: function(k) { - return new Lab(this.l - Kn * (k == null ? 1 : k), this.a, this.b, this.opacity); - }, - rgb: function() { - var y = (this.l + 16) / 116, - x = isNaN(this.a) ? y : y + this.a / 500, - z = isNaN(this.b) ? y : y - this.b / 200; - y = Yn * lab2xyz(y); - x = Xn * lab2xyz(x); - z = Zn * lab2xyz(z); - return new Rgb( - xyz2rgb( 3.2404542 * x - 1.5371385 * y - 0.4985314 * z), // D65 -> sRGB - xyz2rgb(-0.9692660 * x + 1.8760108 * y + 0.0415560 * z), - xyz2rgb( 0.0556434 * x - 0.2040259 * y + 1.0572252 * z), - this.opacity - ); - } - })); +function lab(l, a, b, opacity) { + return arguments.length === 1 ? labConvert(l) : new Lab(l, a, b, opacity == null ? 1 : opacity); +} - function xyz2lab(t) { - return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0; - } +function Lab(l, a, b, opacity) { + this.l = +l; + this.a = +a; + this.b = +b; + this.opacity = +opacity; +} - function lab2xyz(t) { - return t > t1 ? t * t * t : t2 * (t - t0); +define(Lab, lab, extend(Color, { + brighter: function(k) { + return new Lab(this.l + Kn * (k == null ? 1 : k), this.a, this.b, this.opacity); + }, + darker: function(k) { + return new Lab(this.l - Kn * (k == null ? 1 : k), this.a, this.b, this.opacity); + }, + rgb: function() { + var y = (this.l + 16) / 116, + x = isNaN(this.a) ? y : y + this.a / 500, + z = isNaN(this.b) ? y : y - this.b / 200; + y = Yn * lab2xyz(y); + x = Xn * lab2xyz(x); + z = Zn * lab2xyz(z); + return new Rgb( + xyz2rgb( 3.2404542 * x - 1.5371385 * y - 0.4985314 * z), // D65 -> sRGB + xyz2rgb(-0.9692660 * x + 1.8760108 * y + 0.0415560 * z), + xyz2rgb( 0.0556434 * x - 0.2040259 * y + 1.0572252 * z), + this.opacity + ); } +})); - function xyz2rgb(x) { - return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055); - } +function xyz2lab(t) { + return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0; +} - function rgb2xyz(x) { - return (x /= 255) <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4); - } +function lab2xyz(t) { + return t > t1 ? t * t * t : t2 * (t - t0); +} - function hclConvert(o) { - if (o instanceof Hcl) return new Hcl(o.h, o.c, o.l, o.opacity); - if (!(o instanceof Lab)) o = labConvert(o); - var h = Math.atan2(o.b, o.a) * rad2deg; - return new Hcl(h < 0 ? h + 360 : h, Math.sqrt(o.a * o.a + o.b * o.b), o.l, o.opacity); - } +function xyz2rgb(x) { + return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055); +} - function colorHcl(h, c, l, opacity) { - return arguments.length === 1 ? hclConvert(h) : new Hcl(h, c, l, opacity == null ? 1 : opacity); - } +function rgb2xyz(x) { + return (x /= 255) <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4); +} - function Hcl(h, c, l, opacity) { - this.h = +h; - this.c = +c; - this.l = +l; - this.opacity = +opacity; - } +function hclConvert(o) { + if (o instanceof Hcl) return new Hcl(o.h, o.c, o.l, o.opacity); + if (!(o instanceof Lab)) o = labConvert(o); + var h = Math.atan2(o.b, o.a) * rad2deg; + return new Hcl(h < 0 ? h + 360 : h, Math.sqrt(o.a * o.a + o.b * o.b), o.l, o.opacity); +} - define(Hcl, colorHcl, extend(Color, { - brighter: function(k) { - return new Hcl(this.h, this.c, this.l + Kn * (k == null ? 1 : k), this.opacity); - }, - darker: function(k) { - return new Hcl(this.h, this.c, this.l - Kn * (k == null ? 1 : k), this.opacity); - }, - rgb: function() { - return labConvert(this).rgb(); - } - })); +function hcl(h, c, l, opacity) { + return arguments.length === 1 ? hclConvert(h) : new Hcl(h, c, l, opacity == null ? 1 : opacity); +} - var A = -0.14861; - var B = +1.78277; - var C = -0.29227; - var D = -0.90649; - var E = +1.97294; - var ED = E * D; - var EB = E * B; - var BC_DA = B * C - D * A; - function cubehelixConvert(o) { - if (o instanceof Cubehelix) return new Cubehelix(o.h, o.s, o.l, o.opacity); - if (!(o instanceof Rgb)) o = rgbConvert(o); - var r = o.r / 255, - g = o.g / 255, - b = o.b / 255, - l = (BC_DA * b + ED * r - EB * g) / (BC_DA + ED - EB), - bl = b - l, - k = (E * (g - l) - C * bl) / D, - s = Math.sqrt(k * k + bl * bl) / (E * l * (1 - l)), // NaN if l=0 or l=1 - h = s ? Math.atan2(k, bl) * rad2deg - 120 : NaN; - return new Cubehelix(h < 0 ? h + 360 : h, s, l, o.opacity); - } +function Hcl(h, c, l, opacity) { + this.h = +h; + this.c = +c; + this.l = +l; + this.opacity = +opacity; +} - function cubehelix(h, s, l, opacity) { - return arguments.length === 1 ? cubehelixConvert(h) : new Cubehelix(h, s, l, opacity == null ? 1 : opacity); +define(Hcl, hcl, extend(Color, { + brighter: function(k) { + return new Hcl(this.h, this.c, this.l + Kn * (k == null ? 1 : k), this.opacity); + }, + darker: function(k) { + return new Hcl(this.h, this.c, this.l - Kn * (k == null ? 1 : k), this.opacity); + }, + rgb: function() { + return labConvert(this).rgb(); } +})); - function Cubehelix(h, s, l, opacity) { - this.h = +h; - this.s = +s; - this.l = +l; - this.opacity = +opacity; - } +var A = -0.14861; +var B = +1.78277; +var C = -0.29227; +var D = -0.90649; +var E = +1.97294; +var ED = E * D; +var EB = E * B; +var BC_DA = B * C - D * A; - define(Cubehelix, cubehelix, extend(Color, { - brighter: function(k) { - k = k == null ? brighter : Math.pow(brighter, k); - return new Cubehelix(this.h, this.s, this.l * k, this.opacity); - }, - darker: function(k) { - k = k == null ? darker : Math.pow(darker, k); - return new Cubehelix(this.h, this.s, this.l * k, this.opacity); - }, - rgb: function() { - var h = isNaN(this.h) ? 0 : (this.h + 120) * deg2rad, - l = +this.l, - a = isNaN(this.s) ? 0 : this.s * l * (1 - l), - cosh = Math.cos(h), - sinh = Math.sin(h); - return new Rgb( - 255 * (l + a * (A * cosh + B * sinh)), - 255 * (l + a * (C * cosh + D * sinh)), - 255 * (l + a * (E * cosh)), - this.opacity - ); - } - })); +function cubehelixConvert(o) { + if (o instanceof Cubehelix) return new Cubehelix(o.h, o.s, o.l, o.opacity); + if (!(o instanceof Rgb)) o = rgbConvert(o); + var r = o.r / 255, + g = o.g / 255, + b = o.b / 255, + l = (BC_DA * b + ED * r - EB * g) / (BC_DA + ED - EB), + bl = b - l, + k = (E * (g - l) - C * bl) / D, + s = Math.sqrt(k * k + bl * bl) / (E * l * (1 - l)), // NaN if l=0 or l=1 + h = s ? Math.atan2(k, bl) * rad2deg - 120 : NaN; + return new Cubehelix(h < 0 ? h + 360 : h, s, l, o.opacity); +} - function basis$1(t1, v0, v1, v2, v3) { - var t2 = t1 * t1, t3 = t2 * t1; - return ((1 - 3 * t1 + 3 * t2 - t3) * v0 - + (4 - 6 * t2 + 3 * t3) * v1 - + (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2 - + t3 * v3) / 6; - } +function cubehelix(h, s, l, opacity) { + return arguments.length === 1 ? cubehelixConvert(h) : new Cubehelix(h, s, l, opacity == null ? 1 : opacity); +} - function basis$2(values) { - var n = values.length - 1; - return function(t) { - var i = t <= 0 ? (t = 0) : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n), - v1 = values[i], - v2 = values[i + 1], - v0 = i > 0 ? values[i - 1] : 2 * v1 - v2, - v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1; - return basis$1((t - i / n) * n, v0, v1, v2, v3); - }; - } +function Cubehelix(h, s, l, opacity) { + this.h = +h; + this.s = +s; + this.l = +l; + this.opacity = +opacity; +} - function basisClosed$1(values) { - var n = values.length; - return function(t) { - var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n), - v0 = values[(i + n - 1) % n], - v1 = values[i % n], - v2 = values[(i + 1) % n], - v3 = values[(i + 2) % n]; - return basis$1((t - i / n) * n, v0, v1, v2, v3); - }; +define(Cubehelix, cubehelix, extend(Color, { + brighter: function(k) { + k = k == null ? brighter : Math.pow(brighter, k); + return new Cubehelix(this.h, this.s, this.l * k, this.opacity); + }, + darker: function(k) { + k = k == null ? darker : Math.pow(darker, k); + return new Cubehelix(this.h, this.s, this.l * k, this.opacity); + }, + rgb: function() { + var h = isNaN(this.h) ? 0 : (this.h + 120) * deg2rad, + l = +this.l, + a = isNaN(this.s) ? 0 : this.s * l * (1 - l), + cosh = Math.cos(h), + sinh = Math.sin(h); + return new Rgb( + 255 * (l + a * (A * cosh + B * sinh)), + 255 * (l + a * (C * cosh + D * sinh)), + 255 * (l + a * (E * cosh)), + this.opacity + ); } +})); - function constant$2(x) { - return function() { - return x; - }; - } +function basis$1(t1, v0, v1, v2, v3) { + var t2 = t1 * t1, t3 = t2 * t1; + return ((1 - 3 * t1 + 3 * t2 - t3) * v0 + + (4 - 6 * t2 + 3 * t3) * v1 + + (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2 + + t3 * v3) / 6; +} - function linear$1(a, d) { - return function(t) { - return a + t * d; - }; - } +var basis$2 = function(values) { + var n = values.length - 1; + return function(t) { + var i = t <= 0 ? (t = 0) : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n), + v1 = values[i], + v2 = values[i + 1], + v0 = i > 0 ? values[i - 1] : 2 * v1 - v2, + v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1; + return basis$1((t - i / n) * n, v0, v1, v2, v3); + }; +} - function exponential$1(a, b, y) { - return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) { - return Math.pow(a + t * b, y); - }; - } +var basisClosed$1 = function(values) { + var n = values.length; + return function(t) { + var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n), + v0 = values[(i + n - 1) % n], + v1 = values[i % n], + v2 = values[(i + 1) % n], + v3 = values[(i + 2) % n]; + return basis$1((t - i / n) * n, v0, v1, v2, v3); + }; +} - function hue(a, b) { - var d = b - a; - return d ? linear$1(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant$2(isNaN(a) ? b : a); - } +var constant$3 = function(x) { + return function() { + return x; + }; +} - function gamma(y) { - return (y = +y) === 1 ? nogamma : function(a, b) { - return b - a ? exponential$1(a, b, y) : constant$2(isNaN(a) ? b : a); - }; - } +function linear$1(a, d) { + return function(t) { + return a + t * d; + }; +} - function nogamma(a, b) { - var d = b - a; - return d ? linear$1(a, d) : constant$2(isNaN(a) ? b : a); - } +function exponential$1(a, b, y) { + return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) { + return Math.pow(a + t * b, y); + }; +} - var interpolateRgb = (function rgbGamma(y) { - var color = gamma(y); +function hue(a, b) { + var d = b - a; + return d ? linear$1(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant$3(isNaN(a) ? b : a); +} - function rgb(start, end) { - var r = color((start = colorRgb(start)).r, (end = colorRgb(end)).r), - g = color(start.g, end.g), - b = color(start.b, end.b), - opacity = color(start.opacity, end.opacity); - return function(t) { - start.r = r(t); - start.g = g(t); - start.b = b(t); - start.opacity = opacity(t); - return start + ""; - }; - } +function gamma(y) { + return (y = +y) === 1 ? nogamma : function(a, b) { + return b - a ? exponential$1(a, b, y) : constant$3(isNaN(a) ? b : a); + }; +} - rgb.gamma = rgbGamma; +function nogamma(a, b) { + var d = b - a; + return d ? linear$1(a, d) : constant$3(isNaN(a) ? b : a); +} - return rgb; - })(1); +var interpolateRgb = (function rgbGamma(y) { + var color$$1 = gamma(y); - function rgbSpline(spline) { - return function(colors) { - var n = colors.length, - r = new Array(n), - g = new Array(n), - b = new Array(n), - i, color; - for (i = 0; i < n; ++i) { - color = colorRgb(colors[i]); - r[i] = color.r || 0; - g[i] = color.g || 0; - b[i] = color.b || 0; - } - r = spline(r); - g = spline(g); - b = spline(b); - color.opacity = 1; - return function(t) { - color.r = r(t); - color.g = g(t); - color.b = b(t); - return color + ""; - }; + function rgb$$1(start, end) { + var r = color$$1((start = rgb(start)).r, (end = rgb(end)).r), + g = color$$1(start.g, end.g), + b = color$$1(start.b, end.b), + opacity = color$$1(start.opacity, end.opacity); + return function(t) { + start.r = r(t); + start.g = g(t); + start.b = b(t); + start.opacity = opacity(t); + return start + ""; }; } - var rgbBasis = rgbSpline(basis$2); - var rgbBasisClosed = rgbSpline(basisClosed$1); + rgb$$1.gamma = rgbGamma; - function array$1(a, b) { - var nb = b ? b.length : 0, - na = a ? Math.min(nb, a.length) : 0, - x = new Array(nb), - c = new Array(nb), - i; + return rgb$$1; +})(1); - for (i = 0; i < na; ++i) x[i] = interpolate(a[i], b[i]); - for (; i < nb; ++i) c[i] = b[i]; - +function rgbSpline(spline) { + return function(colors) { + var n = colors.length, + r = new Array(n), + g = new Array(n), + b = new Array(n), + i, color$$1; + for (i = 0; i < n; ++i) { + color$$1 = rgb(colors[i]); + r[i] = color$$1.r || 0; + g[i] = color$$1.g || 0; + b[i] = color$$1.b || 0; + } + r = spline(r); + g = spline(g); + b = spline(b); + color$$1.opacity = 1; return function(t) { - for (i = 0; i < na; ++i) c[i] = x[i](t); - return c; + color$$1.r = r(t); + color$$1.g = g(t); + color$$1.b = b(t); + return color$$1 + ""; }; - } + }; +} - function date(a, b) { - var d = new Date; - return a = +a, b -= a, function(t) { - return d.setTime(a + b * t), d; - }; - } +var rgbBasis = rgbSpline(basis$2); +var rgbBasisClosed = rgbSpline(basisClosed$1); - function interpolateNumber(a, b) { - return a = +a, b -= a, function(t) { - return a + b * t; - }; - } +var array$1 = function(a, b) { + var nb = b ? b.length : 0, + na = a ? Math.min(nb, a.length) : 0, + x = new Array(nb), + c = new Array(nb), + i; - function object(a, b) { - var i = {}, - c = {}, - k; + for (i = 0; i < na; ++i) x[i] = interpolate(a[i], b[i]); + for (; i < nb; ++i) c[i] = b[i]; - if (a === null || typeof a !== "object") a = {}; - if (b === null || typeof b !== "object") b = {}; + return function(t) { + for (i = 0; i < na; ++i) c[i] = x[i](t); + return c; + }; +} - for (k in b) { - if (k in a) { - i[k] = interpolate(a[k], b[k]); - } else { - c[k] = b[k]; - } - } +var date = function(a, b) { + var d = new Date; + return a = +a, b -= a, function(t) { + return d.setTime(a + b * t), d; + }; +} - return function(t) { - for (k in i) c[k] = i[k](t); - return c; - }; - } +var interpolateNumber = function(a, b) { + return a = +a, b -= a, function(t) { + return a + b * t; + }; +} - var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g; - var reB = new RegExp(reA.source, "g"); - function zero(b) { - return function() { - return b; - }; - } +var object = function(a, b) { + var i = {}, + c = {}, + k; - function one(b) { - return function(t) { - return b(t) + ""; - }; + if (a === null || typeof a !== "object") a = {}; + if (b === null || typeof b !== "object") b = {}; + + for (k in b) { + if (k in a) { + i[k] = interpolate(a[k], b[k]); + } else { + c[k] = b[k]; + } } - function interpolateString(a, b) { - var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b - am, // current match in a - bm, // current match in b - bs, // string preceding current number in b, if any - i = -1, // index in s - s = [], // string constants and placeholders - q = []; // number interpolators + return function(t) { + for (k in i) c[k] = i[k](t); + return c; + }; +} - // Coerce inputs to strings. - a = a + "", b = b + ""; +var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g; +var reB = new RegExp(reA.source, "g"); - // Interpolate pairs of numbers in a & b. - while ((am = reA.exec(a)) - && (bm = reB.exec(b))) { - if ((bs = bm.index) > bi) { // a string precedes the next number in b - bs = b.slice(bi, bs); - if (s[i]) s[i] += bs; // coalesce with previous string - else s[++i] = bs; - } - if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match - if (s[i]) s[i] += bm; // coalesce with previous string - else s[++i] = bm; - } else { // interpolate non-matching numbers - s[++i] = null; - q.push({i: i, x: interpolateNumber(am, bm)}); - } - bi = reB.lastIndex; - } +function zero(b) { + return function() { + return b; + }; +} - // Add remains of b. - if (bi < b.length) { - bs = b.slice(bi); +function one(b) { + return function(t) { + return b(t) + ""; + }; +} + +var interpolateString = function(a, b) { + var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b + am, // current match in a + bm, // current match in b + bs, // string preceding current number in b, if any + i = -1, // index in s + s = [], // string constants and placeholders + q = []; // number interpolators + + // Coerce inputs to strings. + a = a + "", b = b + ""; + + // Interpolate pairs of numbers in a & b. + while ((am = reA.exec(a)) + && (bm = reB.exec(b))) { + if ((bs = bm.index) > bi) { // a string precedes the next number in b + bs = b.slice(bi, bs); if (s[i]) s[i] += bs; // coalesce with previous string else s[++i] = bs; } - - // Special optimization for only a single match. - // Otherwise, interpolate each of the numbers and rejoin the string. - return s.length < 2 ? (q[0] - ? one(q[0].x) - : zero(b)) - : (b = q.length, function(t) { - for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t); - return s.join(""); - }); + if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match + if (s[i]) s[i] += bm; // coalesce with previous string + else s[++i] = bm; + } else { // interpolate non-matching numbers + s[++i] = null; + q.push({i: i, x: interpolateNumber(am, bm)}); + } + bi = reB.lastIndex; } - function interpolate(a, b) { - var t = typeof b, c; - return b == null || t === "boolean" ? constant$2(b) - : (t === "number" ? interpolateNumber - : t === "string" ? ((c = color(b)) ? (b = c, interpolateRgb) : interpolateString) - : b instanceof color ? interpolateRgb - : b instanceof Date ? date - : Array.isArray(b) ? array$1 - : isNaN(b) ? object - : interpolateNumber)(a, b); + // Add remains of b. + if (bi < b.length) { + bs = b.slice(bi); + if (s[i]) s[i] += bs; // coalesce with previous string + else s[++i] = bs; } - function interpolateRound(a, b) { - return a = +a, b -= a, function(t) { - return Math.round(a + b * t); - }; - } + // Special optimization for only a single match. + // Otherwise, interpolate each of the numbers and rejoin the string. + return s.length < 2 ? (q[0] + ? one(q[0].x) + : zero(b)) + : (b = q.length, function(t) { + for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t); + return s.join(""); + }); +} - var degrees = 180 / Math.PI; +var interpolate = function(a, b) { + var t = typeof b, c; + return b == null || t === "boolean" ? constant$3(b) + : (t === "number" ? interpolateNumber + : t === "string" ? ((c = color(b)) ? (b = c, interpolateRgb) : interpolateString) + : b instanceof color ? interpolateRgb + : b instanceof Date ? date + : Array.isArray(b) ? array$1 + : isNaN(b) ? object + : interpolateNumber)(a, b); +} - var identity$2 = { - translateX: 0, - translateY: 0, - rotate: 0, - skewX: 0, - scaleX: 1, - scaleY: 1 +var interpolateRound = function(a, b) { + return a = +a, b -= a, function(t) { + return Math.round(a + b * t); }; +} - function decompose(a, b, c, d, e, f) { - var scaleX, scaleY, skewX; - if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX; - if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX; - if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY; - if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX; - return { - translateX: e, - translateY: f, - rotate: Math.atan2(b, a) * degrees, - skewX: Math.atan(skewX) * degrees, - scaleX: scaleX, - scaleY: scaleY - }; - } +var degrees = 180 / Math.PI; - var cssNode; - var cssRoot; - var cssView; - var svgNode; - function parseCss(value) { - if (value === "none") return identity$2; - if (!cssNode) cssNode = document.createElement("DIV"), cssRoot = document.documentElement, cssView = document.defaultView; - cssNode.style.transform = value; - value = cssView.getComputedStyle(cssRoot.appendChild(cssNode), null).getPropertyValue("transform"); - cssRoot.removeChild(cssNode); - value = value.slice(7, -1).split(","); - return decompose(+value[0], +value[1], +value[2], +value[3], +value[4], +value[5]); - } +var identity$2 = { + translateX: 0, + translateY: 0, + rotate: 0, + skewX: 0, + scaleX: 1, + scaleY: 1 +}; - function parseSvg(value) { - if (value == null) return identity$2; - if (!svgNode) svgNode = document.createElementNS("http://www.w3.org/2000/svg", "g"); - svgNode.setAttribute("transform", value); - if (!(value = svgNode.transform.baseVal.consolidate())) return identity$2; - value = value.matrix; - return decompose(value.a, value.b, value.c, value.d, value.e, value.f); - } +var decompose = function(a, b, c, d, e, f) { + var scaleX, scaleY, skewX; + if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX; + if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX; + if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY; + if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX; + return { + translateX: e, + translateY: f, + rotate: Math.atan2(b, a) * degrees, + skewX: Math.atan(skewX) * degrees, + scaleX: scaleX, + scaleY: scaleY + }; +} - function interpolateTransform(parse, pxComma, pxParen, degParen) { +var cssNode; +var cssRoot; +var cssView; +var svgNode; - function pop(s) { - return s.length ? s.pop() + " " : ""; - } +function parseCss(value) { + if (value === "none") return identity$2; + if (!cssNode) cssNode = document.createElement("DIV"), cssRoot = document.documentElement, cssView = document.defaultView; + cssNode.style.transform = value; + value = cssView.getComputedStyle(cssRoot.appendChild(cssNode), null).getPropertyValue("transform"); + cssRoot.removeChild(cssNode); + value = value.slice(7, -1).split(","); + return decompose(+value[0], +value[1], +value[2], +value[3], +value[4], +value[5]); +} - function translate(xa, ya, xb, yb, s, q) { - if (xa !== xb || ya !== yb) { - var i = s.push("translate(", null, pxComma, null, pxParen); - q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)}); - } else if (xb || yb) { - s.push("translate(" + xb + pxComma + yb + pxParen); - } +function parseSvg(value) { + if (value == null) return identity$2; + if (!svgNode) svgNode = document.createElementNS("http://www.w3.org/2000/svg", "g"); + svgNode.setAttribute("transform", value); + if (!(value = svgNode.transform.baseVal.consolidate())) return identity$2; + value = value.matrix; + return decompose(value.a, value.b, value.c, value.d, value.e, value.f); +} + +function interpolateTransform(parse, pxComma, pxParen, degParen) { + + function pop(s) { + return s.length ? s.pop() + " " : ""; + } + + function translate(xa, ya, xb, yb, s, q) { + if (xa !== xb || ya !== yb) { + var i = s.push("translate(", null, pxComma, null, pxParen); + q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)}); + } else if (xb || yb) { + s.push("translate(" + xb + pxComma + yb + pxParen); } + } - function rotate(a, b, s, q) { - if (a !== b) { - if (a - b > 180) b += 360; else if (b - a > 180) a += 360; // shortest path - q.push({i: s.push(pop(s) + "rotate(", null, degParen) - 2, x: interpolateNumber(a, b)}); - } else if (b) { - s.push(pop(s) + "rotate(" + b + degParen); - } + function rotate(a, b, s, q) { + if (a !== b) { + if (a - b > 180) b += 360; else if (b - a > 180) a += 360; // shortest path + q.push({i: s.push(pop(s) + "rotate(", null, degParen) - 2, x: interpolateNumber(a, b)}); + } else if (b) { + s.push(pop(s) + "rotate(" + b + degParen); } + } - function skewX(a, b, s, q) { - if (a !== b) { - q.push({i: s.push(pop(s) + "skewX(", null, degParen) - 2, x: interpolateNumber(a, b)}); - } else if (b) { - s.push(pop(s) + "skewX(" + b + degParen); - } + function skewX(a, b, s, q) { + if (a !== b) { + q.push({i: s.push(pop(s) + "skewX(", null, degParen) - 2, x: interpolateNumber(a, b)}); + } else if (b) { + s.push(pop(s) + "skewX(" + b + degParen); } + } - function scale(xa, ya, xb, yb, s, q) { - if (xa !== xb || ya !== yb) { - var i = s.push(pop(s) + "scale(", null, ",", null, ")"); - q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)}); - } else if (xb !== 1 || yb !== 1) { - s.push(pop(s) + "scale(" + xb + "," + yb + ")"); - } + function scale(xa, ya, xb, yb, s, q) { + if (xa !== xb || ya !== yb) { + var i = s.push(pop(s) + "scale(", null, ",", null, ")"); + q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)}); + } else if (xb !== 1 || yb !== 1) { + s.push(pop(s) + "scale(" + xb + "," + yb + ")"); } + } - return function(a, b) { - var s = [], // string constants and placeholders - q = []; // number interpolators - a = parse(a), b = parse(b); - translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q); - rotate(a.rotate, b.rotate, s, q); - skewX(a.skewX, b.skewX, s, q); - scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q); - a = b = null; // gc - return function(t) { - var i = -1, n = q.length, o; - while (++i < n) s[(o = q[i]).i] = o.x(t); - return s.join(""); - }; + return function(a, b) { + var s = [], // string constants and placeholders + q = []; // number interpolators + a = parse(a), b = parse(b); + translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q); + rotate(a.rotate, b.rotate, s, q); + skewX(a.skewX, b.skewX, s, q); + scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q); + a = b = null; // gc + return function(t) { + var i = -1, n = q.length, o; + while (++i < n) s[(o = q[i]).i] = o.x(t); + return s.join(""); }; - } + }; +} - var interpolateTransform$1 = interpolateTransform(parseCss, "px, ", "px)", "deg)"); - var interpolateTransform$2 = interpolateTransform(parseSvg, ", ", ")", ")"); +var interpolateTransformCss = interpolateTransform(parseCss, "px, ", "px)", "deg)"); +var interpolateTransformSvg = interpolateTransform(parseSvg, ", ", ")", ")"); - var rho = Math.SQRT2; - var rho2 = 2; - var rho4 = 4; - var epsilon2 = 1e-12; - function cosh(x) { - return ((x = Math.exp(x)) + 1 / x) / 2; - } +var rho = Math.SQRT2; +var rho2 = 2; +var rho4 = 4; +var epsilon2 = 1e-12; - function sinh(x) { - return ((x = Math.exp(x)) - 1 / x) / 2; - } +function cosh(x) { + return ((x = Math.exp(x)) + 1 / x) / 2; +} - function tanh(x) { - return ((x = Math.exp(2 * x)) - 1) / (x + 1); - } +function sinh(x) { + return ((x = Math.exp(x)) - 1 / x) / 2; +} - // p0 = [ux0, uy0, w0] - // p1 = [ux1, uy1, w1] - function interpolateZoom(p0, p1) { - var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], - ux1 = p1[0], uy1 = p1[1], w1 = p1[2], - dx = ux1 - ux0, - dy = uy1 - uy0, - d2 = dx * dx + dy * dy, - i, - S; +function tanh(x) { + return ((x = Math.exp(2 * x)) - 1) / (x + 1); +} - // Special case for u0 ≅ u1. - if (d2 < epsilon2) { - S = Math.log(w1 / w0) / rho; - i = function(t) { - return [ - ux0 + t * dx, - uy0 + t * dy, - w0 * Math.exp(rho * t * S) - ]; - } +// p0 = [ux0, uy0, w0] +// p1 = [ux1, uy1, w1] +var interpolateZoom = function(p0, p1) { + var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], + ux1 = p1[0], uy1 = p1[1], w1 = p1[2], + dx = ux1 - ux0, + dy = uy1 - uy0, + d2 = dx * dx + dy * dy, + i, + S; + + // Special case for u0 ≅ u1. + if (d2 < epsilon2) { + S = Math.log(w1 / w0) / rho; + i = function(t) { + return [ + ux0 + t * dx, + uy0 + t * dy, + w0 * Math.exp(rho * t * S) + ]; } + } - // General case. - else { - var d1 = Math.sqrt(d2), - b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1), - b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1), - r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), - r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1); - S = (r1 - r0) / rho; - i = function(t) { - var s = t * S, - coshr0 = cosh(r0), - u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0)); - return [ - ux0 + u * dx, - uy0 + u * dy, - w0 * coshr0 / cosh(rho * s + r0) - ]; - } + // General case. + else { + var d1 = Math.sqrt(d2), + b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1), + b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1), + r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), + r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1); + S = (r1 - r0) / rho; + i = function(t) { + var s = t * S, + coshr0 = cosh(r0), + u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0)); + return [ + ux0 + u * dx, + uy0 + u * dy, + w0 * coshr0 / cosh(rho * s + r0) + ]; } + } - i.duration = S * 1000; + i.duration = S * 1000; - return i; - } + return i; +} - function hsl(hue) { - return function(start, end) { - var h = hue((start = colorHsl(start)).h, (end = colorHsl(end)).h), - s = nogamma(start.s, end.s), - l = nogamma(start.l, end.l), - opacity = nogamma(start.opacity, end.opacity); - return function(t) { - start.h = h(t); - start.s = s(t); - start.l = l(t); - start.opacity = opacity(t); - return start + ""; - }; - } +function hsl$1(hue$$1) { + return function(start, end) { + var h = hue$$1((start = hsl(start)).h, (end = hsl(end)).h), + s = nogamma(start.s, end.s), + l = nogamma(start.l, end.l), + opacity = nogamma(start.opacity, end.opacity); + return function(t) { + start.h = h(t); + start.s = s(t); + start.l = l(t); + start.opacity = opacity(t); + return start + ""; + }; } +} - var hsl$1 = hsl(hue); - var hslLong = hsl(nogamma); +var hsl$2 = hsl$1(hue); +var hslLong = hsl$1(nogamma); - function lab$1(start, end) { - var l = nogamma((start = lab(start)).l, (end = lab(end)).l), - a = nogamma(start.a, end.a), - b = nogamma(start.b, end.b), +function lab$1(start, end) { + var l = nogamma((start = lab(start)).l, (end = lab(end)).l), + a = nogamma(start.a, end.a), + b = nogamma(start.b, end.b), + opacity = nogamma(start.opacity, end.opacity); + return function(t) { + start.l = l(t); + start.a = a(t); + start.b = b(t); + start.opacity = opacity(t); + return start + ""; + }; +} + +function hcl$1(hue$$1) { + return function(start, end) { + var h = hue$$1((start = hcl(start)).h, (end = hcl(end)).h), + c = nogamma(start.c, end.c), + l = nogamma(start.l, end.l), opacity = nogamma(start.opacity, end.opacity); return function(t) { + start.h = h(t); + start.c = c(t); start.l = l(t); - start.a = a(t); - start.b = b(t); start.opacity = opacity(t); return start + ""; }; } +} - function hcl(hue) { - return function(start, end) { - var h = hue((start = colorHcl(start)).h, (end = colorHcl(end)).h), - c = nogamma(start.c, end.c), +var hcl$2 = hcl$1(hue); +var hclLong = hcl$1(nogamma); + +function cubehelix$1(hue$$1) { + return (function cubehelixGamma(y) { + y = +y; + + function cubehelix$$1(start, end) { + var h = hue$$1((start = cubehelix(start)).h, (end = cubehelix(end)).h), + s = nogamma(start.s, end.s), l = nogamma(start.l, end.l), opacity = nogamma(start.opacity, end.opacity); return function(t) { start.h = h(t); - start.c = c(t); - start.l = l(t); + start.s = s(t); + start.l = l(Math.pow(t, y)); start.opacity = opacity(t); return start + ""; }; } - } - var hcl$1 = hcl(hue); - var hclLong = hcl(nogamma); + cubehelix$$1.gamma = cubehelixGamma; - function cubehelix$1(hue) { - return (function cubehelixGamma(y) { - y = +y; + return cubehelix$$1; + })(1); +} - function cubehelix$$(start, end) { - var h = hue((start = cubehelix(start)).h, (end = cubehelix(end)).h), - s = nogamma(start.s, end.s), - l = nogamma(start.l, end.l), - opacity = nogamma(start.opacity, end.opacity); - return function(t) { - start.h = h(t); - start.s = s(t); - start.l = l(Math.pow(t, y)); - start.opacity = opacity(t); - return start + ""; - }; - } +var cubehelix$2 = cubehelix$1(hue); +var cubehelixLong = cubehelix$1(nogamma); - cubehelix$$.gamma = cubehelixGamma; +var quantize = function(interpolator, n) { + var samples = new Array(n); + for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1)); + return samples; +} - return cubehelix$$; - })(1); +var noop$1 = {value: function() {}}; + +function dispatch() { + for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) { + if (!(t = arguments[i] + "") || (t in _)) throw new Error("illegal type: " + t); + _[t] = []; } + return new Dispatch(_); +} - var cubehelix$2 = cubehelix$1(hue); - var interpolateCubehelixLong = cubehelix$1(nogamma); +function Dispatch(_) { + this._ = _; +} - function quantize(interpolator, n) { - var samples = new Array(n); - for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1)); - return samples; - } +function parseTypenames(typenames, types) { + return typenames.trim().split(/^|\s+/).map(function(t) { + var name = "", i = t.indexOf("."); + if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i); + if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t); + return {type: t, name: name}; + }); +} - var noop$1 = {value: function() {}}; +Dispatch.prototype = dispatch.prototype = { + constructor: Dispatch, + on: function(typename, callback) { + var _ = this._, + T = parseTypenames(typename + "", _), + t, + i = -1, + n = T.length; - function dispatch() { - for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) { - if (!(t = arguments[i] + "") || (t in _)) throw new Error("illegal type: " + t); - _[t] = []; + // If no callback was specified, return the callback of the given type and name. + if (arguments.length < 2) { + while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t; + return; } - return new Dispatch(_); + + // If a type was specified, set the callback for the given type and name. + // Otherwise, if a null callback was specified, remove callbacks of the given name. + if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback); + while (++i < n) { + if (t = (typename = T[i]).type) _[t] = set$2(_[t], typename.name, callback); + else if (callback == null) for (t in _) _[t] = set$2(_[t], typename.name, null); + } + + return this; + }, + copy: function() { + var copy = {}, _ = this._; + for (var t in _) copy[t] = _[t].slice(); + return new Dispatch(copy); + }, + call: function(type, that) { + if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2]; + if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type); + for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args); + }, + apply: function(type, that, args) { + if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type); + for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args); } +}; - function Dispatch(_) { - this._ = _; +function get(type, name) { + for (var i = 0, n = type.length, c; i < n; ++i) { + if ((c = type[i]).name === name) { + return c.value; + } } +} - function parseTypenames(typenames, types) { - return typenames.trim().split(/^|\s+/).map(function(t) { - var name = "", i = t.indexOf("."); - if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i); - if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t); - return {type: t, name: name}; - }); +function set$2(type, name, callback) { + for (var i = 0, n = type.length; i < n; ++i) { + if (type[i].name === name) { + type[i] = noop$1, type = type.slice(0, i).concat(type.slice(i + 1)); + break; + } } + if (callback != null) type.push({name: name, value: callback}); + return type; +} - Dispatch.prototype = dispatch.prototype = { - constructor: Dispatch, - on: function(typename, callback) { - var _ = this._, - T = parseTypenames(typename + "", _), - t, - i = -1, - n = T.length; +function objectConverter(columns) { + return new Function("d", "return {" + columns.map(function(name, i) { + return JSON.stringify(name) + ": d[" + i + "]"; + }).join(",") + "}"); +} - // If no callback was specified, return the callback of the given type and name. - if (arguments.length < 2) { - while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t; - return; - } - - // If a type was specified, set the callback for the given type and name. - // Otherwise, if a null callback was specified, remove callbacks of the given name. - if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback); - while (++i < n) { - if (t = (typename = T[i]).type) _[t] = set$1(_[t], typename.name, callback); - else if (callback == null) for (t in _) _[t] = set$1(_[t], typename.name, null); - } - - return this; - }, - copy: function() { - var copy = {}, _ = this._; - for (var t in _) copy[t] = _[t].slice(); - return new Dispatch(copy); - }, - call: function(type, that) { - if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2]; - if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type); - for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args); - }, - apply: function(type, that, args) { - if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type); - for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args); - } +function customConverter(columns, f) { + var object = objectConverter(columns); + return function(row, i) { + return f(object(row), i, columns); }; +} - function get(type, name) { - for (var i = 0, n = type.length, c; i < n; ++i) { - if ((c = type[i]).name === name) { - return c.value; - } - } - } +// Compute unique columns in order of discovery. +function inferColumns(rows) { + var columnSet = Object.create(null), + columns = []; - function set$1(type, name, callback) { - for (var i = 0, n = type.length; i < n; ++i) { - if (type[i].name === name) { - type[i] = noop$1, type = type.slice(0, i).concat(type.slice(i + 1)); - break; + rows.forEach(function(row) { + for (var column in row) { + if (!(column in columnSet)) { + columns.push(columnSet[column] = column); } } - if (callback != null) type.push({name: name, value: callback}); - return type; - } + }); - function objectConverter(columns) { - return new Function("d", "return {" + columns.map(function(name, i) { - return JSON.stringify(name) + ": d[" + i + "]"; - }).join(",") + "}"); - } + return columns; +} - function customConverter(columns, f) { - var object = objectConverter(columns); - return function(row, i) { - return f(object(row), i, columns); - }; - } +var dsv = function(delimiter) { + var reFormat = new RegExp("[\"" + delimiter + "\n]"), + delimiterCode = delimiter.charCodeAt(0); - // Compute unique columns in order of discovery. - function inferColumns(rows) { - var columnSet = Object.create(null), - columns = []; - - rows.forEach(function(row) { - for (var column in row) { - if (!(column in columnSet)) { - columns.push(columnSet[column] = column); - } - } + function parse(text, f) { + var convert, columns, rows = parseRows(text, function(row, i) { + if (convert) return convert(row, i - 1); + columns = row, convert = f ? customConverter(row, f) : objectConverter(row); }); - - return columns; + rows.columns = columns; + return rows; } - function dsv(delimiter) { - var reFormat = new RegExp("[\"" + delimiter + "\n]"), - delimiterCode = delimiter.charCodeAt(0); + function parseRows(text, f) { + var EOL = {}, // sentinel value for end-of-line + EOF = {}, // sentinel value for end-of-file + rows = [], // output rows + N = text.length, + I = 0, // current character index + n = 0, // the current line number + t, // the current token + eol; // is the current token followed by EOL? - function parse(text, f) { - var convert, columns, rows = parseRows(text, function(row, i) { - if (convert) return convert(row, i - 1); - columns = row, convert = f ? customConverter(row, f) : objectConverter(row); - }); - rows.columns = columns; - return rows; - } + function token() { + if (I >= N) return EOF; // special case: end of file + if (eol) return eol = false, EOL; // special case: end of line - function parseRows(text, f) { - var EOL = {}, // sentinel value for end-of-line - EOF = {}, // sentinel value for end-of-file - rows = [], // output rows - N = text.length, - I = 0, // current character index - n = 0, // the current line number - t, // the current token - eol; // is the current token followed by EOL? - - function token() { - if (I >= N) return EOF; // special case: end of file - if (eol) return eol = false, EOL; // special case: end of line - - // special case: quotes - var j = I, c; - if (text.charCodeAt(j) === 34) { - var i = j; - while (i++ < N) { - if (text.charCodeAt(i) === 34) { - if (text.charCodeAt(i + 1) !== 34) break; - ++i; - } + // special case: quotes + var j = I, c; + if (text.charCodeAt(j) === 34) { + var i = j; + while (i++ < N) { + if (text.charCodeAt(i) === 34) { + if (text.charCodeAt(i + 1) !== 34) break; + ++i; } - I = i + 2; - c = text.charCodeAt(i + 1); - if (c === 13) { - eol = true; - if (text.charCodeAt(i + 2) === 10) ++I; - } else if (c === 10) { - eol = true; - } - return text.slice(j + 1, i).replace(/""/g, "\""); } - - // common case: find next delimiter or newline - while (I < N) { - var k = 1; - c = text.charCodeAt(I++); - if (c === 10) eol = true; // \n - else if (c === 13) { eol = true; if (text.charCodeAt(I) === 10) ++I, ++k; } // \r|\r\n - else if (c !== delimiterCode) continue; - return text.slice(j, I - k); + I = i + 2; + c = text.charCodeAt(i + 1); + if (c === 13) { + eol = true; + if (text.charCodeAt(i + 2) === 10) ++I; + } else if (c === 10) { + eol = true; } - - // special case: last token before EOF - return text.slice(j); + return text.slice(j + 1, i).replace(/""/g, "\""); } - while ((t = token()) !== EOF) { - var a = []; - while (t !== EOL && t !== EOF) { - a.push(t); - t = token(); - } - if (f && (a = f(a, n++)) == null) continue; - rows.push(a); + // common case: find next delimiter or newline + while (I < N) { + var k = 1; + c = text.charCodeAt(I++); + if (c === 10) eol = true; // \n + else if (c === 13) { eol = true; if (text.charCodeAt(I) === 10) ++I, ++k; } // \r|\r\n + else if (c !== delimiterCode) continue; + return text.slice(j, I - k); } - return rows; + // special case: last token before EOF + return text.slice(j); } - function format(rows, columns) { - if (columns == null) columns = inferColumns(rows); - return [columns.map(formatValue).join(delimiter)].concat(rows.map(function(row) { - return columns.map(function(column) { - return formatValue(row[column]); - }).join(delimiter); - })).join("\n"); + while ((t = token()) !== EOF) { + var a = []; + while (t !== EOL && t !== EOF) { + a.push(t); + t = token(); + } + if (f && (a = f(a, n++)) == null) continue; + rows.push(a); } - function formatRows(rows) { - return rows.map(formatRow).join("\n"); - } + return rows; + } - function formatRow(row) { - return row.map(formatValue).join(delimiter); - } + function format(rows, columns) { + if (columns == null) columns = inferColumns(rows); + return [columns.map(formatValue).join(delimiter)].concat(rows.map(function(row) { + return columns.map(function(column) { + return formatValue(row[column]); + }).join(delimiter); + })).join("\n"); + } - function formatValue(text) { - return text == null ? "" - : reFormat.test(text += "") ? "\"" + text.replace(/\"/g, "\"\"") + "\"" - : text; - } + function formatRows(rows) { + return rows.map(formatRow).join("\n"); + } - return { - parse: parse, - parseRows: parseRows, - format: format, - formatRows: formatRows - }; + function formatRow(row) { + return row.map(formatValue).join(delimiter); } - var csv = dsv(","); + function formatValue(text) { + return text == null ? "" + : reFormat.test(text += "") ? "\"" + text.replace(/\"/g, "\"\"") + "\"" + : text; + } - var csvParse = csv.parse; - var csvParseRows = csv.parseRows; - var csvFormat = csv.format; - var csvFormatRows = csv.formatRows; + return { + parse: parse, + parseRows: parseRows, + format: format, + formatRows: formatRows + }; +} - var tsv = dsv("\t"); +var csv = dsv(","); - var tsvParse = tsv.parse; - var tsvParseRows = tsv.parseRows; - var tsvFormat = tsv.format; - var tsvFormatRows = tsv.formatRows; +var csvParse = csv.parse; +var csvParseRows = csv.parseRows; +var csvFormat = csv.format; +var csvFormatRows = csv.formatRows; - function request(url, callback) { - var request, - event = dispatch("beforesend", "progress", "load", "error"), - mimeType, - headers = map$1(), - xhr = new XMLHttpRequest, - user = null, - password = null, - response, - responseType, - timeout = 0; +var tsv = dsv("\t"); - // If IE does not support CORS, use XDomainRequest. - if (typeof XDomainRequest !== "undefined" - && !("withCredentials" in xhr) - && /^(http(s)?:)?\/\//.test(url)) xhr = new XDomainRequest; +var tsvParse = tsv.parse; +var tsvParseRows = tsv.parseRows; +var tsvFormat = tsv.format; +var tsvFormatRows = tsv.formatRows; - "onload" in xhr - ? xhr.onload = xhr.onerror = xhr.ontimeout = respond - : xhr.onreadystatechange = function(o) { xhr.readyState > 3 && respond(o); }; +var request = function(url, callback) { + var request, + event = dispatch("beforesend", "progress", "load", "error"), + mimeType, + headers = map$1(), + xhr = new XMLHttpRequest, + user = null, + password = null, + response, + responseType, + timeout = 0; - function respond(o) { - var status = xhr.status, result; - if (!status && hasResponse(xhr) - || status >= 200 && status < 300 - || status === 304) { - if (response) { - try { - result = response.call(request, xhr); - } catch (e) { - event.call("error", request, e); - return; - } - } else { - result = xhr; + // If IE does not support CORS, use XDomainRequest. + if (typeof XDomainRequest !== "undefined" + && !("withCredentials" in xhr) + && /^(http(s)?:)?\/\//.test(url)) xhr = new XDomainRequest; + + "onload" in xhr + ? xhr.onload = xhr.onerror = xhr.ontimeout = respond + : xhr.onreadystatechange = function(o) { xhr.readyState > 3 && respond(o); }; + + function respond(o) { + var status = xhr.status, result; + if (!status && hasResponse(xhr) + || status >= 200 && status < 300 + || status === 304) { + if (response) { + try { + result = response.call(request, xhr); + } catch (e) { + event.call("error", request, e); + return; } - event.call("load", request, result); } else { - event.call("error", request, o); + result = xhr; } + event.call("load", request, result); + } else { + event.call("error", request, o); } + } - xhr.onprogress = function(e) { - event.call("progress", request, e); - }; + xhr.onprogress = function(e) { + event.call("progress", request, e); + }; - request = { - header: function(name, value) { - name = (name + "").toLowerCase(); - if (arguments.length < 2) return headers.get(name); - if (value == null) headers.remove(name); - else headers.set(name, value + ""); - return request; - }, + request = { + header: function(name, value) { + name = (name + "").toLowerCase(); + if (arguments.length < 2) return headers.get(name); + if (value == null) headers.remove(name); + else headers.set(name, value + ""); + return request; + }, - // If mimeType is non-null and no Accept header is set, a default is used. - mimeType: function(value) { - if (!arguments.length) return mimeType; - mimeType = value == null ? null : value + ""; - return request; - }, + // If mimeType is non-null and no Accept header is set, a default is used. + mimeType: function(value) { + if (!arguments.length) return mimeType; + mimeType = value == null ? null : value + ""; + return request; + }, - // Specifies what type the response value should take; - // for instance, arraybuffer, blob, document, or text. - responseType: function(value) { - if (!arguments.length) return responseType; - responseType = value; - return request; - }, + // Specifies what type the response value should take; + // for instance, arraybuffer, blob, document, or text. + responseType: function(value) { + if (!arguments.length) return responseType; + responseType = value; + return request; + }, - timeout: function(value) { - if (!arguments.length) return timeout; - timeout = +value; - return request; - }, + timeout: function(value) { + if (!arguments.length) return timeout; + timeout = +value; + return request; + }, - user: function(value) { - return arguments.length < 1 ? user : (user = value == null ? null : value + "", request); - }, + user: function(value) { + return arguments.length < 1 ? user : (user = value == null ? null : value + "", request); + }, - password: function(value) { - return arguments.length < 1 ? password : (password = value == null ? null : value + "", request); - }, + password: function(value) { + return arguments.length < 1 ? password : (password = value == null ? null : value + "", request); + }, - // Specify how to convert the response content to a specific type; - // changes the callback value on "load" events. - response: function(value) { - response = value; - return request; - }, + // Specify how to convert the response content to a specific type; + // changes the callback value on "load" events. + response: function(value) { + response = value; + return request; + }, - // Alias for send("GET", …). - get: function(data, callback) { - return request.send("GET", data, callback); - }, + // Alias for send("GET", …). + get: function(data, callback) { + return request.send("GET", data, callback); + }, - // Alias for send("POST", …). - post: function(data, callback) { - return request.send("POST", data, callback); - }, + // Alias for send("POST", …). + post: function(data, callback) { + return request.send("POST", data, callback); + }, - // If callback is non-null, it will be used for error and load events. - send: function(method, data, callback) { - xhr.open(method, url, true, user, password); - if (mimeType != null && !headers.has("accept")) headers.set("accept", mimeType + ",*/*"); - if (xhr.setRequestHeader) headers.each(function(value, name) { xhr.setRequestHeader(name, value); }); - if (mimeType != null && xhr.overrideMimeType) xhr.overrideMimeType(mimeType); - if (responseType != null) xhr.responseType = responseType; - if (timeout > 0) xhr.timeout = timeout; - if (callback == null && typeof data === "function") callback = data, data = null; - if (callback != null && callback.length === 1) callback = fixCallback(callback); - if (callback != null) request.on("error", callback).on("load", function(xhr) { callback(null, xhr); }); - event.call("beforesend", request, xhr); - xhr.send(data == null ? null : data); - return request; - }, + // If callback is non-null, it will be used for error and load events. + send: function(method, data, callback) { + xhr.open(method, url, true, user, password); + if (mimeType != null && !headers.has("accept")) headers.set("accept", mimeType + ",*/*"); + if (xhr.setRequestHeader) headers.each(function(value, name) { xhr.setRequestHeader(name, value); }); + if (mimeType != null && xhr.overrideMimeType) xhr.overrideMimeType(mimeType); + if (responseType != null) xhr.responseType = responseType; + if (timeout > 0) xhr.timeout = timeout; + if (callback == null && typeof data === "function") callback = data, data = null; + if (callback != null && callback.length === 1) callback = fixCallback(callback); + if (callback != null) request.on("error", callback).on("load", function(xhr) { callback(null, xhr); }); + event.call("beforesend", request, xhr); + xhr.send(data == null ? null : data); + return request; + }, - abort: function() { - xhr.abort(); - return request; - }, + abort: function() { + xhr.abort(); + return request; + }, - on: function() { - var value = event.on.apply(event, arguments); - return value === event ? request : value; - } - }; - - if (callback != null) { - if (typeof callback !== "function") throw new Error("invalid callback: " + callback); - return request.get(callback); + on: function() { + var value = event.on.apply(event, arguments); + return value === event ? request : value; } + }; - return request; + if (callback != null) { + if (typeof callback !== "function") throw new Error("invalid callback: " + callback); + return request.get(callback); } - function fixCallback(callback) { - return function(error, xhr) { - callback(error == null ? xhr : null); - }; - } + return request; +} - function hasResponse(xhr) { - var type = xhr.responseType; - return type && type !== "text" - ? xhr.response // null on error - : xhr.responseText; // "" on error - } +function fixCallback(callback) { + return function(error, xhr) { + callback(error == null ? xhr : null); + }; +} - function type(defaultMimeType, response) { - return function(url, callback) { - var r = request(url).mimeType(defaultMimeType).response(response); - if (callback != null) { - if (typeof callback !== "function") throw new Error("invalid callback: " + callback); - return r.get(callback); - } - return r; - }; - } +function hasResponse(xhr) { + var type = xhr.responseType; + return type && type !== "text" + ? xhr.response // null on error + : xhr.responseText; // "" on error +} - var html = type("text/html", function(xhr) { - return document.createRange().createContextualFragment(xhr.responseText); - }); +var type = function(defaultMimeType, response) { + return function(url, callback) { + var r = request(url).mimeType(defaultMimeType).response(response); + if (callback != null) { + if (typeof callback !== "function") throw new Error("invalid callback: " + callback); + return r.get(callback); + } + return r; + }; +} - var json = type("application/json", function(xhr) { - return JSON.parse(xhr.responseText); - }); +var html = type("text/html", function(xhr) { + return document.createRange().createContextualFragment(xhr.responseText); +}); - var text = type("text/plain", function(xhr) { - return xhr.responseText; - }); +var json = type("application/json", function(xhr) { + return JSON.parse(xhr.responseText); +}); - var xml = type("application/xml", function(xhr) { - var xml = xhr.responseXML; - if (!xml) throw new Error("parse error"); - return xml; - }); +var text = type("text/plain", function(xhr) { + return xhr.responseText; +}); - function dsv$1(defaultMimeType, parse) { - return function(url, row, callback) { - if (arguments.length < 3) callback = row, row = null; - var r = request(url).mimeType(defaultMimeType); - r.row = function(_) { return arguments.length ? r.response(responseOf(parse, row = _)) : row; }; - r.row(row); - return callback ? r.get(callback) : r; - }; - } +var xml = type("application/xml", function(xhr) { + var xml = xhr.responseXML; + if (!xml) throw new Error("parse error"); + return xml; +}); - function responseOf(parse, row) { - return function(request) { - return parse(request.responseText, row); - }; - } +var dsv$1 = function(defaultMimeType, parse) { + return function(url, row, callback) { + if (arguments.length < 3) callback = row, row = null; + var r = request(url).mimeType(defaultMimeType); + r.row = function(_) { return arguments.length ? r.response(responseOf(parse, row = _)) : row; }; + r.row(row); + return callback ? r.get(callback) : r; + }; +} - var csv$1 = dsv$1("text/csv", csvParse); +function responseOf(parse, row) { + return function(request$$1) { + return parse(request$$1.responseText, row); + }; +} - var tsv$1 = dsv$1("text/tab-separated-values", tsvParse); +var csv$1 = dsv$1("text/csv", csvParse); - var frame = 0; - var timeout = 0; - var interval = 0; - var pokeDelay = 1000; - var taskHead; - var taskTail; - var clockLast = 0; - var clockNow = 0; - var clockSkew = 0; - var clock = typeof performance === "object" && performance.now ? performance : Date; - var setFrame = typeof requestAnimationFrame === "function" - ? (clock === Date ? function(f) { requestAnimationFrame(function() { f(clock.now()); }); } : requestAnimationFrame) - : function(f) { setTimeout(f, 17); }; - function now() { - return clockNow || (setFrame(clearNow), clockNow = clock.now() + clockSkew); - } +var tsv$1 = dsv$1("text/tab-separated-values", tsvParse); - function clearNow() { - clockNow = 0; - } +var frame = 0; +var timeout = 0; +var interval = 0; +var pokeDelay = 1000; +var taskHead; +var taskTail; +var clockLast = 0; +var clockNow = 0; +var clockSkew = 0; +var clock = typeof performance === "object" && performance.now ? performance : Date; +var setFrame = typeof requestAnimationFrame === "function" ? requestAnimationFrame : function(f) { setTimeout(f, 17); }; - function Timer() { - this._call = - this._time = - this._next = null; - } +function now() { + return clockNow || (setFrame(clearNow), clockNow = clock.now() + clockSkew); +} - Timer.prototype = timer.prototype = { - constructor: Timer, - restart: function(callback, delay, time) { - if (typeof callback !== "function") throw new TypeError("callback is not a function"); - time = (time == null ? now() : +time) + (delay == null ? 0 : +delay); - if (!this._next && taskTail !== this) { - if (taskTail) taskTail._next = this; - else taskHead = this; - taskTail = this; - } - this._call = callback; - this._time = time; - sleep(); - }, - stop: function() { - if (this._call) { - this._call = null; - this._time = Infinity; - sleep(); - } - } - }; +function clearNow() { + clockNow = 0; +} - function timer(callback, delay, time) { - var t = new Timer; - t.restart(callback, delay, time); - return t; - } +function Timer() { + this._call = + this._time = + this._next = null; +} - function timerFlush() { - now(); // Get the current time, if not already set. - ++frame; // Pretend we’ve set an alarm, if we haven’t already. - var t = taskHead, e; - while (t) { - if ((e = clockNow - t._time) >= 0) t._call.call(null, e); - t = t._next; +Timer.prototype = timer.prototype = { + constructor: Timer, + restart: function(callback, delay, time) { + if (typeof callback !== "function") throw new TypeError("callback is not a function"); + time = (time == null ? now() : +time) + (delay == null ? 0 : +delay); + if (!this._next && taskTail !== this) { + if (taskTail) taskTail._next = this; + else taskHead = this; + taskTail = this; } - --frame; - } - - function wake(time) { - clockNow = (clockLast = time || clock.now()) + clockSkew; - frame = timeout = 0; - try { - timerFlush(); - } finally { - frame = 0; - nap(); - clockNow = 0; + this._call = callback; + this._time = time; + sleep(); + }, + stop: function() { + if (this._call) { + this._call = null; + this._time = Infinity; + sleep(); } } +}; - function poke$1() { - var now = clock.now(), delay = now - clockLast; - if (delay > pokeDelay) clockSkew -= delay, clockLast = now; +function timer(callback, delay, time) { + var t = new Timer; + t.restart(callback, delay, time); + return t; +} + +function timerFlush() { + now(); // Get the current time, if not already set. + ++frame; // Pretend we’ve set an alarm, if we haven’t already. + var t = taskHead, e; + while (t) { + if ((e = clockNow - t._time) >= 0) t._call.call(null, e); + t = t._next; } + --frame; +} - function nap() { - var t0, t1 = taskHead, t2, time = Infinity; - while (t1) { - if (t1._call) { - if (time > t1._time) time = t1._time; - t0 = t1, t1 = t1._next; - } else { - t2 = t1._next, t1._next = null; - t1 = t0 ? t0._next = t2 : taskHead = t2; - } - } - taskTail = t0; - sleep(time); +function wake() { + clockNow = (clockLast = clock.now()) + clockSkew; + frame = timeout = 0; + try { + timerFlush(); + } finally { + frame = 0; + nap(); + clockNow = 0; } +} - function sleep(time) { - if (frame) return; // Soonest alarm already set, or will be. - if (timeout) timeout = clearTimeout(timeout); - var delay = time - clockNow; - if (delay > 24) { - if (time < Infinity) timeout = setTimeout(wake, delay); - if (interval) interval = clearInterval(interval); +function poke$1() { + var now = clock.now(), delay = now - clockLast; + if (delay > pokeDelay) clockSkew -= delay, clockLast = now; +} + +function nap() { + var t0, t1 = taskHead, t2, time = Infinity; + while (t1) { + if (t1._call) { + if (time > t1._time) time = t1._time; + t0 = t1, t1 = t1._next; } else { - if (!interval) interval = setInterval(poke$1, pokeDelay); - frame = 1, setFrame(wake); + t2 = t1._next, t1._next = null; + t1 = t0 ? t0._next = t2 : taskHead = t2; } } + taskTail = t0; + sleep(time); +} - function timeout$1(callback, delay, time) { - var t = new Timer; - delay = delay == null ? 0 : +delay; - t.restart(function(elapsed) { - t.stop(); - callback(elapsed + delay); - }, delay, time); - return t; +function sleep(time) { + if (frame) return; // Soonest alarm already set, or will be. + if (timeout) timeout = clearTimeout(timeout); + var delay = time - clockNow; + if (delay > 24) { + if (time < Infinity) timeout = setTimeout(wake, delay); + if (interval) interval = clearInterval(interval); + } else { + if (!interval) interval = setInterval(poke$1, pokeDelay); + frame = 1, setFrame(wake); } +} - function interval$1(callback, delay, time) { - var t = new Timer, total = delay; - if (delay == null) return t.restart(callback, delay, time), t; - delay = +delay, time = time == null ? now() : +time; - t.restart(function tick(elapsed) { - elapsed += total; - t.restart(tick, total += delay, time); - callback(elapsed); - }, delay, time); - return t; - } +var timeout$1 = function(callback, delay, time) { + var t = new Timer; + delay = delay == null ? 0 : +delay; + t.restart(function(elapsed) { + t.stop(); + callback(elapsed + delay); + }, delay, time); + return t; +} -var t0$1 = new Date; -var t1$1 = new Date; - function newInterval(floori, offseti, count, field) { +var interval$1 = function(callback, delay, time) { + var t = new Timer, total = delay; + if (delay == null) return t.restart(callback, delay, time), t; + delay = +delay, time = time == null ? now() : +time; + t.restart(function tick(elapsed) { + elapsed += total; + t.restart(tick, total += delay, time); + callback(elapsed); + }, delay, time); + return t; +} - function interval(date) { - return floori(date = new Date(+date)), date; - } +var t0$1 = new Date; +var t1$1 = new Date; - interval.floor = interval; +function newInterval(floori, offseti, count, field) { - interval.ceil = function(date) { - return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date; - }; + function interval(date) { + return floori(date = new Date(+date)), date; + } - interval.round = function(date) { - var d0 = interval(date), - d1 = interval.ceil(date); - return date - d0 < d1 - date ? d0 : d1; - }; + interval.floor = interval; - interval.offset = function(date, step) { - return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date; - }; + interval.ceil = function(date) { + return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date; + }; - interval.range = function(start, stop, step) { - var range = []; - start = interval.ceil(start); - step = step == null ? 1 : Math.floor(step); - if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date - do range.push(new Date(+start)); while (offseti(start, step), floori(start), start < stop) - return range; - }; + interval.round = function(date) { + var d0 = interval(date), + d1 = interval.ceil(date); + return date - d0 < d1 - date ? d0 : d1; + }; - interval.filter = function(test) { - return newInterval(function(date) { - while (floori(date), !test(date)) date.setTime(date - 1); - }, function(date, step) { - while (--step >= 0) while (offseti(date, 1), !test(date)); - }); - }; + interval.offset = function(date, step) { + return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date; + }; - if (count) { - interval.count = function(start, end) { - t0$1.setTime(+start), t1$1.setTime(+end); - floori(t0$1), floori(t1$1); - return Math.floor(count(t0$1, t1$1)); - }; + interval.range = function(start, stop, step) { + var range = []; + start = interval.ceil(start); + step = step == null ? 1 : Math.floor(step); + if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date + do range.push(new Date(+start)); while (offseti(start, step), floori(start), start < stop) + return range; + }; - interval.every = function(step) { - step = Math.floor(step); - return !isFinite(step) || !(step > 0) ? null - : !(step > 1) ? interval - : interval.filter(field - ? function(d) { return field(d) % step === 0; } - : function(d) { return interval.count(0, d) % step === 0; }); - }; - } - - return interval; - } - - var millisecond = newInterval(function() { - // noop - }, function(date, step) { - date.setTime(+date + step); - }, function(start, end) { - return end - start; - }); - - // An optimized implementation for this simple case. - millisecond.every = function(k) { - k = Math.floor(k); - if (!isFinite(k) || !(k > 0)) return null; - if (!(k > 1)) return millisecond; + interval.filter = function(test) { return newInterval(function(date) { - date.setTime(Math.floor(date / k) * k); + while (floori(date), !test(date)) date.setTime(date - 1); }, function(date, step) { - date.setTime(+date + step * k); - }, function(start, end) { - return (end - start) / k; + while (--step >= 0) while (offseti(date, 1), !test(date)) {} // eslint-disable-line no-empty }); }; - var milliseconds = millisecond.range; + if (count) { + interval.count = function(start, end) { + t0$1.setTime(+start), t1$1.setTime(+end); + floori(t0$1), floori(t1$1); + return Math.floor(count(t0$1, t1$1)); + }; - var durationSecond = 1e3; - var durationMinute = 6e4; - var durationHour = 36e5; - var durationDay = 864e5; - var durationWeek = 6048e5; + interval.every = function(step) { + step = Math.floor(step); + return !isFinite(step) || !(step > 0) ? null + : !(step > 1) ? interval + : interval.filter(field + ? function(d) { return field(d) % step === 0; } + : function(d) { return interval.count(0, d) % step === 0; }); + }; + } - var second = newInterval(function(date) { - date.setTime(Math.floor(date / durationSecond) * durationSecond); - }, function(date, step) { - date.setTime(+date + step * durationSecond); - }, function(start, end) { - return (end - start) / durationSecond; - }, function(date) { - return date.getUTCSeconds(); - }); + return interval; +} - var seconds = second.range; +var millisecond = newInterval(function() { + // noop +}, function(date, step) { + date.setTime(+date + step); +}, function(start, end) { + return end - start; +}); - var minute = newInterval(function(date) { - date.setTime(Math.floor(date / durationMinute) * durationMinute); +// An optimized implementation for this simple case. +millisecond.every = function(k) { + k = Math.floor(k); + if (!isFinite(k) || !(k > 0)) return null; + if (!(k > 1)) return millisecond; + return newInterval(function(date) { + date.setTime(Math.floor(date / k) * k); }, function(date, step) { - date.setTime(+date + step * durationMinute); + date.setTime(+date + step * k); }, function(start, end) { - return (end - start) / durationMinute; - }, function(date) { - return date.getMinutes(); + return (end - start) / k; }); +}; - var minutes = minute.range; +var milliseconds = millisecond.range; - var hour = newInterval(function(date) { - var offset = date.getTimezoneOffset() * durationMinute % durationHour; - if (offset < 0) offset += durationHour; - date.setTime(Math.floor((+date - offset) / durationHour) * durationHour + offset); - }, function(date, step) { - date.setTime(+date + step * durationHour); - }, function(start, end) { - return (end - start) / durationHour; - }, function(date) { - return date.getHours(); - }); +var durationSecond = 1e3; +var durationMinute = 6e4; +var durationHour = 36e5; +var durationDay = 864e5; +var durationWeek = 6048e5; - var hours = hour.range; +var second = newInterval(function(date) { + date.setTime(Math.floor(date / durationSecond) * durationSecond); +}, function(date, step) { + date.setTime(+date + step * durationSecond); +}, function(start, end) { + return (end - start) / durationSecond; +}, function(date) { + return date.getUTCSeconds(); +}); - var day = newInterval(function(date) { - date.setHours(0, 0, 0, 0); - }, function(date, step) { - date.setDate(date.getDate() + step); - }, function(start, end) { - return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay; - }, function(date) { - return date.getDate() - 1; - }); +var seconds = second.range; - var days = day.range; +var minute = newInterval(function(date) { + date.setTime(Math.floor(date / durationMinute) * durationMinute); +}, function(date, step) { + date.setTime(+date + step * durationMinute); +}, function(start, end) { + return (end - start) / durationMinute; +}, function(date) { + return date.getMinutes(); +}); - function weekday(i) { - return newInterval(function(date) { - date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7); - date.setHours(0, 0, 0, 0); - }, function(date, step) { - date.setDate(date.getDate() + step * 7); - }, function(start, end) { - return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationWeek; - }); - } +var minutes = minute.range; - var timeWeek = weekday(0); - var timeMonday = weekday(1); - var tuesday = weekday(2); - var wednesday = weekday(3); - var thursday = weekday(4); - var friday = weekday(5); - var saturday = weekday(6); +var hour = newInterval(function(date) { + var offset = date.getTimezoneOffset() * durationMinute % durationHour; + if (offset < 0) offset += durationHour; + date.setTime(Math.floor((+date - offset) / durationHour) * durationHour + offset); +}, function(date, step) { + date.setTime(+date + step * durationHour); +}, function(start, end) { + return (end - start) / durationHour; +}, function(date) { + return date.getHours(); +}); - var sundays = timeWeek.range; - var mondays = timeMonday.range; - var tuesdays = tuesday.range; - var wednesdays = wednesday.range; - var thursdays = thursday.range; - var fridays = friday.range; - var saturdays = saturday.range; +var hours = hour.range; - var month = newInterval(function(date) { - date.setDate(1); +var day = newInterval(function(date) { + date.setHours(0, 0, 0, 0); +}, function(date, step) { + date.setDate(date.getDate() + step); +}, function(start, end) { + return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay; +}, function(date) { + return date.getDate() - 1; +}); + +var days = day.range; + +function weekday(i) { + return newInterval(function(date) { + date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7); date.setHours(0, 0, 0, 0); }, function(date, step) { - date.setMonth(date.getMonth() + step); + date.setDate(date.getDate() + step * 7); }, function(start, end) { - return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12; - }, function(date) { - return date.getMonth(); + return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationWeek; }); +} - var months = month.range; +var sunday = weekday(0); +var monday = weekday(1); +var tuesday = weekday(2); +var wednesday = weekday(3); +var thursday = weekday(4); +var friday = weekday(5); +var saturday = weekday(6); - var year = newInterval(function(date) { +var sundays = sunday.range; +var mondays = monday.range; +var tuesdays = tuesday.range; +var wednesdays = wednesday.range; +var thursdays = thursday.range; +var fridays = friday.range; +var saturdays = saturday.range; + +var month = newInterval(function(date) { + date.setDate(1); + date.setHours(0, 0, 0, 0); +}, function(date, step) { + date.setMonth(date.getMonth() + step); +}, function(start, end) { + return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12; +}, function(date) { + return date.getMonth(); +}); + +var months = month.range; + +var year = newInterval(function(date) { + date.setMonth(0, 1); + date.setHours(0, 0, 0, 0); +}, function(date, step) { + date.setFullYear(date.getFullYear() + step); +}, function(start, end) { + return end.getFullYear() - start.getFullYear(); +}, function(date) { + return date.getFullYear(); +}); + +// An optimized implementation for this simple case. +year.every = function(k) { + return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) { + date.setFullYear(Math.floor(date.getFullYear() / k) * k); date.setMonth(0, 1); date.setHours(0, 0, 0, 0); }, function(date, step) { - date.setFullYear(date.getFullYear() + step); - }, function(start, end) { - return end.getFullYear() - start.getFullYear(); - }, function(date) { - return date.getFullYear(); + date.setFullYear(date.getFullYear() + step * k); }); +}; - // An optimized implementation for this simple case. - year.every = function(k) { - return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) { - date.setFullYear(Math.floor(date.getFullYear() / k) * k); - date.setMonth(0, 1); - date.setHours(0, 0, 0, 0); - }, function(date, step) { - date.setFullYear(date.getFullYear() + step * k); - }); - }; +var years = year.range; - var years = year.range; +var utcMinute = newInterval(function(date) { + date.setUTCSeconds(0, 0); +}, function(date, step) { + date.setTime(+date + step * durationMinute); +}, function(start, end) { + return (end - start) / durationMinute; +}, function(date) { + return date.getUTCMinutes(); +}); - var utcMinute = newInterval(function(date) { - date.setUTCSeconds(0, 0); - }, function(date, step) { - date.setTime(+date + step * durationMinute); - }, function(start, end) { - return (end - start) / durationMinute; - }, function(date) { - return date.getUTCMinutes(); - }); +var utcMinutes = utcMinute.range; - var utcMinutes = utcMinute.range; +var utcHour = newInterval(function(date) { + date.setUTCMinutes(0, 0, 0); +}, function(date, step) { + date.setTime(+date + step * durationHour); +}, function(start, end) { + return (end - start) / durationHour; +}, function(date) { + return date.getUTCHours(); +}); - var utcHour = newInterval(function(date) { - date.setUTCMinutes(0, 0, 0); - }, function(date, step) { - date.setTime(+date + step * durationHour); - }, function(start, end) { - return (end - start) / durationHour; - }, function(date) { - return date.getUTCHours(); - }); +var utcHours = utcHour.range; - var utcHours = utcHour.range; +var utcDay = newInterval(function(date) { + date.setUTCHours(0, 0, 0, 0); +}, function(date, step) { + date.setUTCDate(date.getUTCDate() + step); +}, function(start, end) { + return (end - start) / durationDay; +}, function(date) { + return date.getUTCDate() - 1; +}); - var utcDay = newInterval(function(date) { +var utcDays = utcDay.range; + +function utcWeekday(i) { + return newInterval(function(date) { + date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7); date.setUTCHours(0, 0, 0, 0); }, function(date, step) { - date.setUTCDate(date.getUTCDate() + step); + date.setUTCDate(date.getUTCDate() + step * 7); }, function(start, end) { - return (end - start) / durationDay; - }, function(date) { - return date.getUTCDate() - 1; + return (end - start) / durationWeek; }); +} - var utcDays = utcDay.range; +var utcSunday = utcWeekday(0); +var utcMonday = utcWeekday(1); +var utcTuesday = utcWeekday(2); +var utcWednesday = utcWeekday(3); +var utcThursday = utcWeekday(4); +var utcFriday = utcWeekday(5); +var utcSaturday = utcWeekday(6); - function utcWeekday(i) { - return newInterval(function(date) { - date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7); - date.setUTCHours(0, 0, 0, 0); - }, function(date, step) { - date.setUTCDate(date.getUTCDate() + step * 7); - }, function(start, end) { - return (end - start) / durationWeek; - }); - } +var utcSundays = utcSunday.range; +var utcMondays = utcMonday.range; +var utcTuesdays = utcTuesday.range; +var utcWednesdays = utcWednesday.range; +var utcThursdays = utcThursday.range; +var utcFridays = utcFriday.range; +var utcSaturdays = utcSaturday.range; - var utcWeek = utcWeekday(0); - var utcMonday = utcWeekday(1); - var utcTuesday = utcWeekday(2); - var utcWednesday = utcWeekday(3); - var utcThursday = utcWeekday(4); - var utcFriday = utcWeekday(5); - var utcSaturday = utcWeekday(6); +var utcMonth = newInterval(function(date) { + date.setUTCDate(1); + date.setUTCHours(0, 0, 0, 0); +}, function(date, step) { + date.setUTCMonth(date.getUTCMonth() + step); +}, function(start, end) { + return end.getUTCMonth() - start.getUTCMonth() + (end.getUTCFullYear() - start.getUTCFullYear()) * 12; +}, function(date) { + return date.getUTCMonth(); +}); - var utcSundays = utcWeek.range; - var utcMondays = utcMonday.range; - var utcTuesdays = utcTuesday.range; - var utcWednesdays = utcWednesday.range; - var utcThursdays = utcThursday.range; - var utcFridays = utcFriday.range; - var utcSaturdays = utcSaturday.range; +var utcMonths = utcMonth.range; - var utcMonth = newInterval(function(date) { - date.setUTCDate(1); - date.setUTCHours(0, 0, 0, 0); - }, function(date, step) { - date.setUTCMonth(date.getUTCMonth() + step); - }, function(start, end) { - return end.getUTCMonth() - start.getUTCMonth() + (end.getUTCFullYear() - start.getUTCFullYear()) * 12; - }, function(date) { - return date.getUTCMonth(); - }); +var utcYear = newInterval(function(date) { + date.setUTCMonth(0, 1); + date.setUTCHours(0, 0, 0, 0); +}, function(date, step) { + date.setUTCFullYear(date.getUTCFullYear() + step); +}, function(start, end) { + return end.getUTCFullYear() - start.getUTCFullYear(); +}, function(date) { + return date.getUTCFullYear(); +}); - var utcMonths = utcMonth.range; - - var utcYear = newInterval(function(date) { +// An optimized implementation for this simple case. +utcYear.every = function(k) { + return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) { + date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k); date.setUTCMonth(0, 1); date.setUTCHours(0, 0, 0, 0); }, function(date, step) { - date.setUTCFullYear(date.getUTCFullYear() + step); - }, function(start, end) { - return end.getUTCFullYear() - start.getUTCFullYear(); - }, function(date) { - return date.getUTCFullYear(); + date.setUTCFullYear(date.getUTCFullYear() + step * k); }); +}; - // An optimized implementation for this simple case. - utcYear.every = function(k) { - return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) { - date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k); - date.setUTCMonth(0, 1); - date.setUTCHours(0, 0, 0, 0); - }, function(date, step) { - date.setUTCFullYear(date.getUTCFullYear() + step * k); - }); - }; +var utcYears = utcYear.range; - var utcYears = utcYear.range; +// Computes the decimal coefficient and exponent of the specified number x with +// significant digits p, where x is positive and p is in [1, 21] or undefined. +// For example, formatDecimal(1.23) returns ["123", 0]. +var formatDecimal = function(x, p) { + if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity + var i, coefficient = x.slice(0, i); - // Computes the decimal coefficient and exponent of the specified number x with - // significant digits p, where x is positive and p is in [1, 21] or undefined. - // For example, formatDecimal(1.23) returns ["123", 0]. - function formatDecimal(x, p) { - if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity - var i, coefficient = x.slice(0, i); + // The string returned by toExponential either has the form \d\.\d+e[-+]\d+ + // (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3). + return [ + coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient, + +x.slice(i + 1) + ]; +} - // The string returned by toExponential either has the form \d\.\d+e[-+]\d+ - // (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3). - return [ - coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient, - +x.slice(i + 1) - ]; - } +var exponent$1 = function(x) { + return x = formatDecimal(Math.abs(x)), x ? x[1] : NaN; +} - function exponent$1(x) { - return x = formatDecimal(Math.abs(x)), x ? x[1] : NaN; - } +var formatGroup = function(grouping, thousands) { + return function(value, width) { + var i = value.length, + t = [], + j = 0, + g = grouping[0], + length = 0; - function formatGroup(grouping, thousands) { - return function(value, width) { - var i = value.length, - t = [], - j = 0, - g = grouping[0], - length = 0; + while (i > 0 && g > 0) { + if (length + g + 1 > width) g = Math.max(1, width - length); + t.push(value.substring(i -= g, i + g)); + if ((length += g + 1) > width) break; + g = grouping[j = (j + 1) % grouping.length]; + } - while (i > 0 && g > 0) { - if (length + g + 1 > width) g = Math.max(1, width - length); - t.push(value.substring(i -= g, i + g)); - if ((length += g + 1) > width) break; - g = grouping[j = (j + 1) % grouping.length]; - } + return t.reverse().join(thousands); + }; +} - return t.reverse().join(thousands); - }; - } +var formatDefault = function(x, p) { + x = x.toPrecision(p); - function formatDefault(x, p) { - x = x.toPrecision(p); - - out: for (var n = x.length, i = 1, i0 = -1, i1; i < n; ++i) { - switch (x[i]) { - case ".": i0 = i1 = i; break; - case "0": if (i0 === 0) i0 = i; i1 = i; break; - case "e": break out; - default: if (i0 > 0) i0 = 0; break; - } + out: for (var n = x.length, i = 1, i0 = -1, i1; i < n; ++i) { + switch (x[i]) { + case ".": i0 = i1 = i; break; + case "0": if (i0 === 0) i0 = i; i1 = i; break; + case "e": break out; + default: if (i0 > 0) i0 = 0; break; } - - return i0 > 0 ? x.slice(0, i0) + x.slice(i1 + 1) : x; } - var prefixExponent; + return i0 > 0 ? x.slice(0, i0) + x.slice(i1 + 1) : x; +} - function formatPrefixAuto(x, p) { - var d = formatDecimal(x, p); - if (!d) return x + ""; - var coefficient = d[0], - exponent = d[1], - i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1, - n = coefficient.length; - return i === n ? coefficient - : i > n ? coefficient + new Array(i - n + 1).join("0") - : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i) - : "0." + new Array(1 - i).join("0") + formatDecimal(x, Math.max(0, p + i - 1))[0]; // less than 1y! - } +var prefixExponent; - function formatRounded(x, p) { - var d = formatDecimal(x, p); - if (!d) return x + ""; - var coefficient = d[0], - exponent = d[1]; - return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient - : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1) - : coefficient + new Array(exponent - coefficient.length + 2).join("0"); - } +var formatPrefixAuto = function(x, p) { + var d = formatDecimal(x, p); + if (!d) return x + ""; + var coefficient = d[0], + exponent = d[1], + i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1, + n = coefficient.length; + return i === n ? coefficient + : i > n ? coefficient + new Array(i - n + 1).join("0") + : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i) + : "0." + new Array(1 - i).join("0") + formatDecimal(x, Math.max(0, p + i - 1))[0]; // less than 1y! +} - var formatTypes = { - "": formatDefault, - "%": function(x, p) { return (x * 100).toFixed(p); }, - "b": function(x) { return Math.round(x).toString(2); }, - "c": function(x) { return x + ""; }, - "d": function(x) { return Math.round(x).toString(10); }, - "e": function(x, p) { return x.toExponential(p); }, - "f": function(x, p) { return x.toFixed(p); }, - "g": function(x, p) { return x.toPrecision(p); }, - "o": function(x) { return Math.round(x).toString(8); }, - "p": function(x, p) { return formatRounded(x * 100, p); }, - "r": formatRounded, - "s": formatPrefixAuto, - "X": function(x) { return Math.round(x).toString(16).toUpperCase(); }, - "x": function(x) { return Math.round(x).toString(16); } - }; +var formatRounded = function(x, p) { + var d = formatDecimal(x, p); + if (!d) return x + ""; + var coefficient = d[0], + exponent = d[1]; + return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient + : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1) + : coefficient + new Array(exponent - coefficient.length + 2).join("0"); +} - // [[fill]align][sign][symbol][0][width][,][.precision][type] - var re = /^(?:(.)?([<>=^]))?([+\-\( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?([a-z%])?$/i; +var formatTypes = { + "": formatDefault, + "%": function(x, p) { return (x * 100).toFixed(p); }, + "b": function(x) { return Math.round(x).toString(2); }, + "c": function(x) { return x + ""; }, + "d": function(x) { return Math.round(x).toString(10); }, + "e": function(x, p) { return x.toExponential(p); }, + "f": function(x, p) { return x.toFixed(p); }, + "g": function(x, p) { return x.toPrecision(p); }, + "o": function(x) { return Math.round(x).toString(8); }, + "p": function(x, p) { return formatRounded(x * 100, p); }, + "r": formatRounded, + "s": formatPrefixAuto, + "X": function(x) { return Math.round(x).toString(16).toUpperCase(); }, + "x": function(x) { return Math.round(x).toString(16); } +}; - function formatSpecifier(specifier) { - return new FormatSpecifier(specifier); - } +// [[fill]align][sign][symbol][0][width][,][.precision][type] +var re = /^(?:(.)?([<>=^]))?([+\-\( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?([a-z%])?$/i; - function FormatSpecifier(specifier) { - if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier); +var formatSpecifier = function(specifier) { + return new FormatSpecifier(specifier); +} - var match, - fill = match[1] || " ", - align = match[2] || ">", - sign = match[3] || "-", - symbol = match[4] || "", - zero = !!match[5], - width = match[6] && +match[6], - comma = !!match[7], - precision = match[8] && +match[8].slice(1), - type = match[9] || ""; +function FormatSpecifier(specifier) { + if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier); - // The "n" type is an alias for ",g". - if (type === "n") comma = true, type = "g"; + var match, + fill = match[1] || " ", + align = match[2] || ">", + sign = match[3] || "-", + symbol = match[4] || "", + zero = !!match[5], + width = match[6] && +match[6], + comma = !!match[7], + precision = match[8] && +match[8].slice(1), + type = match[9] || ""; - // Map invalid types to the default format. - else if (!formatTypes[type]) type = ""; + // The "n" type is an alias for ",g". + if (type === "n") comma = true, type = "g"; - // If zero fill is specified, padding goes after sign and before digits. - if (zero || (fill === "0" && align === "=")) zero = true, fill = "0", align = "="; + // Map invalid types to the default format. + else if (!formatTypes[type]) type = ""; - this.fill = fill; - this.align = align; - this.sign = sign; - this.symbol = symbol; - this.zero = zero; - this.width = width; - this.comma = comma; - this.precision = precision; - this.type = type; - } + // If zero fill is specified, padding goes after sign and before digits. + if (zero || (fill === "0" && align === "=")) zero = true, fill = "0", align = "="; - FormatSpecifier.prototype.toString = function() { - return this.fill - + this.align - + this.sign - + this.symbol - + (this.zero ? "0" : "") - + (this.width == null ? "" : Math.max(1, this.width | 0)) - + (this.comma ? "," : "") - + (this.precision == null ? "" : "." + Math.max(0, this.precision | 0)) - + this.type; - }; + this.fill = fill; + this.align = align; + this.sign = sign; + this.symbol = symbol; + this.zero = zero; + this.width = width; + this.comma = comma; + this.precision = precision; + this.type = type; +} - var prefixes = ["y","z","a","f","p","n","\xB5","m","","k","M","G","T","P","E","Z","Y"]; +FormatSpecifier.prototype.toString = function() { + return this.fill + + this.align + + this.sign + + this.symbol + + (this.zero ? "0" : "") + + (this.width == null ? "" : Math.max(1, this.width | 0)) + + (this.comma ? "," : "") + + (this.precision == null ? "" : "." + Math.max(0, this.precision | 0)) + + this.type; +}; - function identity$3(x) { - return x; - } +var prefixes = ["y","z","a","f","p","n","\xB5","m","","k","M","G","T","P","E","Z","Y"]; - function formatLocale(locale) { - var group = locale.grouping && locale.thousands ? formatGroup(locale.grouping, locale.thousands) : identity$3, - currency = locale.currency, - decimal = locale.decimal; +function identity$3(x) { + return x; +} - function newFormat(specifier) { - specifier = formatSpecifier(specifier); +var formatLocale = function(locale) { + var group = locale.grouping && locale.thousands ? formatGroup(locale.grouping, locale.thousands) : identity$3, + currency = locale.currency, + decimal = locale.decimal; - var fill = specifier.fill, - align = specifier.align, - sign = specifier.sign, - symbol = specifier.symbol, - zero = specifier.zero, - width = specifier.width, - comma = specifier.comma, - precision = specifier.precision, - type = specifier.type; + function newFormat(specifier) { + specifier = formatSpecifier(specifier); - // Compute the prefix and suffix. - // For SI-prefix, the suffix is lazily computed. - var prefix = symbol === "$" ? currency[0] : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "", - suffix = symbol === "$" ? currency[1] : /[%p]/.test(type) ? "%" : ""; + var fill = specifier.fill, + align = specifier.align, + sign = specifier.sign, + symbol = specifier.symbol, + zero = specifier.zero, + width = specifier.width, + comma = specifier.comma, + precision = specifier.precision, + type = specifier.type; - // What format function should we use? - // Is this an integer type? - // Can this type generate exponential notation? - var formatType = formatTypes[type], - maybeSuffix = !type || /[defgprs%]/.test(type); + // Compute the prefix and suffix. + // For SI-prefix, the suffix is lazily computed. + var prefix = symbol === "$" ? currency[0] : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "", + suffix = symbol === "$" ? currency[1] : /[%p]/.test(type) ? "%" : ""; - // Set the default precision if not specified, - // or clamp the specified precision to the supported range. - // For significant precision, it must be in [1, 21]. - // For fixed precision, it must be in [0, 20]. - precision = precision == null ? (type ? 6 : 12) - : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision)) - : Math.max(0, Math.min(20, precision)); + // What format function should we use? + // Is this an integer type? + // Can this type generate exponential notation? + var formatType = formatTypes[type], + maybeSuffix = !type || /[defgprs%]/.test(type); - function format(value) { - var valuePrefix = prefix, - valueSuffix = suffix, - i, n, c; + // Set the default precision if not specified, + // or clamp the specified precision to the supported range. + // For significant precision, it must be in [1, 21]. + // For fixed precision, it must be in [0, 20]. + precision = precision == null ? (type ? 6 : 12) + : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision)) + : Math.max(0, Math.min(20, precision)); - if (type === "c") { - valueSuffix = formatType(value) + valueSuffix; - value = ""; - } else { - value = +value; + function format(value) { + var valuePrefix = prefix, + valueSuffix = suffix, + i, n, c; - // Convert negative to positive, and compute the prefix. - // Note that -0 is not less than 0, but 1 / -0 is! - var valueNegative = (value < 0 || 1 / value < 0) && (value *= -1, true); + if (type === "c") { + valueSuffix = formatType(value) + valueSuffix; + value = ""; + } else { + value = +value; - // Perform the initial formatting. - value = formatType(value, precision); + // Convert negative to positive, and compute the prefix. + // Note that -0 is not less than 0, but 1 / -0 is! + var valueNegative = (value < 0 || 1 / value < 0) && (value *= -1, true); - // If the original value was negative, it may be rounded to zero during - // formatting; treat this as (positive) zero. - if (valueNegative) { - i = -1, n = value.length; - valueNegative = false; - while (++i < n) { - if (c = value.charCodeAt(i), (48 < c && c < 58) - || (type === "x" && 96 < c && c < 103) - || (type === "X" && 64 < c && c < 71)) { - valueNegative = true; - break; - } + // Perform the initial formatting. + value = formatType(value, precision); + + // If the original value was negative, it may be rounded to zero during + // formatting; treat this as (positive) zero. + if (valueNegative) { + i = -1, n = value.length; + valueNegative = false; + while (++i < n) { + if (c = value.charCodeAt(i), (48 < c && c < 58) + || (type === "x" && 96 < c && c < 103) + || (type === "X" && 64 < c && c < 71)) { + valueNegative = true; + break; } } + } - // Compute the prefix and suffix. - valuePrefix = (valueNegative ? (sign === "(" ? sign : "-") : sign === "-" || sign === "(" ? "" : sign) + valuePrefix; - valueSuffix = valueSuffix + (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + (valueNegative && sign === "(" ? ")" : ""); + // Compute the prefix and suffix. + valuePrefix = (valueNegative ? (sign === "(" ? sign : "-") : sign === "-" || sign === "(" ? "" : sign) + valuePrefix; + valueSuffix = valueSuffix + (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + (valueNegative && sign === "(" ? ")" : ""); - // Break the formatted value into the integer “value” part that can be - // grouped, and fractional or exponential “suffix” part that is not. - if (maybeSuffix) { - i = -1, n = value.length; - while (++i < n) { - if (c = value.charCodeAt(i), 48 > c || c > 57) { - valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix; - value = value.slice(0, i); - break; - } + // Break the formatted value into the integer “value” part that can be + // grouped, and fractional or exponential “suffix” part that is not. + if (maybeSuffix) { + i = -1, n = value.length; + while (++i < n) { + if (c = value.charCodeAt(i), 48 > c || c > 57) { + valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix; + value = value.slice(0, i); + break; } } } + } - // If the fill character is not "0", grouping is applied before padding. - if (comma && !zero) value = group(value, Infinity); + // If the fill character is not "0", grouping is applied before padding. + if (comma && !zero) value = group(value, Infinity); - // Compute the padding. - var length = valuePrefix.length + value.length + valueSuffix.length, - padding = length < width ? new Array(width - length + 1).join(fill) : ""; + // Compute the padding. + var length = valuePrefix.length + value.length + valueSuffix.length, + padding = length < width ? new Array(width - length + 1).join(fill) : ""; - // If the fill character is "0", grouping is applied after padding. - if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = ""; + // If the fill character is "0", grouping is applied after padding. + if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = ""; - // Reconstruct the final output based on the desired alignment. - switch (align) { - case "<": return valuePrefix + value + valueSuffix + padding; - case "=": return valuePrefix + padding + value + valueSuffix; - case "^": return padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length); - } - return padding + valuePrefix + value + valueSuffix; + // Reconstruct the final output based on the desired alignment. + switch (align) { + case "<": return valuePrefix + value + valueSuffix + padding; + case "=": return valuePrefix + padding + value + valueSuffix; + case "^": return padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length); } - - format.toString = function() { - return specifier + ""; - }; - - return format; + return padding + valuePrefix + value + valueSuffix; } - function formatPrefix(specifier, value) { - var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)), - e = Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3, - k = Math.pow(10, -e), - prefix = prefixes[8 + e / 3]; - return function(value) { - return f(k * value) + prefix; - }; - } - - return { - format: newFormat, - formatPrefix: formatPrefix + format.toString = function() { + return specifier + ""; }; - } - var locale; - defaultLocale({ - decimal: ".", - thousands: ",", - grouping: [3], - currency: ["$", ""] - }); - - function defaultLocale(definition) { - locale = formatLocale(definition); - exports.format = locale.format; - exports.formatPrefix = locale.formatPrefix; - return locale; + return format; } - function precisionFixed(step) { - return Math.max(0, -exponent$1(Math.abs(step))); + function formatPrefix(specifier, value) { + var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)), + e = Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3, + k = Math.pow(10, -e), + prefix = prefixes[8 + e / 3]; + return function(value) { + return f(k * value) + prefix; + }; } - function precisionPrefix(step, value) { - return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3 - exponent$1(Math.abs(step))); - } + return { + format: newFormat, + formatPrefix: formatPrefix + }; +} - function precisionRound(step, max) { - step = Math.abs(step), max = Math.abs(max) - step; - return Math.max(0, exponent$1(max) - exponent$1(step)) + 1; - } +var locale$1; - function localDate(d) { - if (0 <= d.y && d.y < 100) { - var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L); - date.setFullYear(d.y); - return date; - } - return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L); - } - function utcDate(d) { - if (0 <= d.y && d.y < 100) { - var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L)); - date.setUTCFullYear(d.y); - return date; - } - return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L)); - } - function newYear(y) { - return {y: y, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0}; - } +defaultLocale({ + decimal: ".", + thousands: ",", + grouping: [3], + currency: ["$", ""] +}); - function formatLocale$1(locale) { - var locale_dateTime = locale.dateTime, - locale_date = locale.date, - locale_time = locale.time, - locale_periods = locale.periods, - locale_weekdays = locale.days, - locale_shortWeekdays = locale.shortDays, - locale_months = locale.months, - locale_shortMonths = locale.shortMonths; +function defaultLocale(definition) { + locale$1 = formatLocale(definition); + exports.format = locale$1.format; + exports.formatPrefix = locale$1.formatPrefix; + return locale$1; +} - var periodRe = formatRe(locale_periods), - periodLookup = formatLookup(locale_periods), - weekdayRe = formatRe(locale_weekdays), - weekdayLookup = formatLookup(locale_weekdays), - shortWeekdayRe = formatRe(locale_shortWeekdays), - shortWeekdayLookup = formatLookup(locale_shortWeekdays), - monthRe = formatRe(locale_months), - monthLookup = formatLookup(locale_months), - shortMonthRe = formatRe(locale_shortMonths), - shortMonthLookup = formatLookup(locale_shortMonths); +var precisionFixed = function(step) { + return Math.max(0, -exponent$1(Math.abs(step))); +} - var formats = { - "a": formatShortWeekday, - "A": formatWeekday, - "b": formatShortMonth, - "B": formatMonth, - "c": null, - "d": formatDayOfMonth, - "e": formatDayOfMonth, - "H": formatHour24, - "I": formatHour12, - "j": formatDayOfYear, - "L": formatMilliseconds, - "m": formatMonthNumber, - "M": formatMinutes, - "p": formatPeriod, - "S": formatSeconds, - "U": formatWeekNumberSunday, - "w": formatWeekdayNumber, - "W": formatWeekNumberMonday, - "x": null, - "X": null, - "y": formatYear, - "Y": formatFullYear, - "Z": formatZone, - "%": formatLiteralPercent - }; +var precisionPrefix = function(step, value) { + return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3 - exponent$1(Math.abs(step))); +} - var utcFormats = { - "a": formatUTCShortWeekday, - "A": formatUTCWeekday, - "b": formatUTCShortMonth, - "B": formatUTCMonth, - "c": null, - "d": formatUTCDayOfMonth, - "e": formatUTCDayOfMonth, - "H": formatUTCHour24, - "I": formatUTCHour12, - "j": formatUTCDayOfYear, - "L": formatUTCMilliseconds, - "m": formatUTCMonthNumber, - "M": formatUTCMinutes, - "p": formatUTCPeriod, - "S": formatUTCSeconds, - "U": formatUTCWeekNumberSunday, - "w": formatUTCWeekdayNumber, - "W": formatUTCWeekNumberMonday, - "x": null, - "X": null, - "y": formatUTCYear, - "Y": formatUTCFullYear, - "Z": formatUTCZone, - "%": formatLiteralPercent - }; +var precisionRound = function(step, max) { + step = Math.abs(step), max = Math.abs(max) - step; + return Math.max(0, exponent$1(max) - exponent$1(step)) + 1; +} - var parses = { - "a": parseShortWeekday, - "A": parseWeekday, - "b": parseShortMonth, - "B": parseMonth, - "c": parseLocaleDateTime, - "d": parseDayOfMonth, - "e": parseDayOfMonth, - "H": parseHour24, - "I": parseHour24, - "j": parseDayOfYear, - "L": parseMilliseconds, - "m": parseMonthNumber, - "M": parseMinutes, - "p": parsePeriod, - "S": parseSeconds, - "U": parseWeekNumberSunday, - "w": parseWeekdayNumber, - "W": parseWeekNumberMonday, - "x": parseLocaleDate, - "X": parseLocaleTime, - "y": parseYear, - "Y": parseFullYear, - "Z": parseZone, - "%": parseLiteralPercent - }; +function localDate(d) { + if (0 <= d.y && d.y < 100) { + var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L); + date.setFullYear(d.y); + return date; + } + return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L); +} - // These recursive directive definitions must be deferred. - formats.x = newFormat(locale_date, formats); - formats.X = newFormat(locale_time, formats); - formats.c = newFormat(locale_dateTime, formats); - utcFormats.x = newFormat(locale_date, utcFormats); - utcFormats.X = newFormat(locale_time, utcFormats); - utcFormats.c = newFormat(locale_dateTime, utcFormats); +function utcDate(d) { + if (0 <= d.y && d.y < 100) { + var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L)); + date.setUTCFullYear(d.y); + return date; + } + return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L)); +} - function newFormat(specifier, formats) { - return function(date) { - var string = [], - i = -1, - j = 0, - n = specifier.length, - c, - pad, - format; +function newYear(y) { + return {y: y, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0}; +} - if (!(date instanceof Date)) date = new Date(+date); +function formatLocale$1(locale) { + var locale_dateTime = locale.dateTime, + locale_date = locale.date, + locale_time = locale.time, + locale_periods = locale.periods, + locale_weekdays = locale.days, + locale_shortWeekdays = locale.shortDays, + locale_months = locale.months, + locale_shortMonths = locale.shortMonths; - while (++i < n) { - if (specifier.charCodeAt(i) === 37) { - string.push(specifier.slice(j, i)); - if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i); - else pad = c === "e" ? " " : "0"; - if (format = formats[c]) c = format(date, pad); - string.push(c); - j = i + 1; - } - } + var periodRe = formatRe(locale_periods), + periodLookup = formatLookup(locale_periods), + weekdayRe = formatRe(locale_weekdays), + weekdayLookup = formatLookup(locale_weekdays), + shortWeekdayRe = formatRe(locale_shortWeekdays), + shortWeekdayLookup = formatLookup(locale_shortWeekdays), + monthRe = formatRe(locale_months), + monthLookup = formatLookup(locale_months), + shortMonthRe = formatRe(locale_shortMonths), + shortMonthLookup = formatLookup(locale_shortMonths); - string.push(specifier.slice(j, i)); - return string.join(""); - }; - } + var formats = { + "a": formatShortWeekday, + "A": formatWeekday, + "b": formatShortMonth, + "B": formatMonth, + "c": null, + "d": formatDayOfMonth, + "e": formatDayOfMonth, + "H": formatHour24, + "I": formatHour12, + "j": formatDayOfYear, + "L": formatMilliseconds, + "m": formatMonthNumber, + "M": formatMinutes, + "p": formatPeriod, + "S": formatSeconds, + "U": formatWeekNumberSunday, + "w": formatWeekdayNumber, + "W": formatWeekNumberMonday, + "x": null, + "X": null, + "y": formatYear, + "Y": formatFullYear, + "Z": formatZone, + "%": formatLiteralPercent + }; - function newParse(specifier, newDate) { - return function(string) { - var d = newYear(1900), - i = parseSpecifier(d, specifier, string += "", 0); - if (i != string.length) return null; + var utcFormats = { + "a": formatUTCShortWeekday, + "A": formatUTCWeekday, + "b": formatUTCShortMonth, + "B": formatUTCMonth, + "c": null, + "d": formatUTCDayOfMonth, + "e": formatUTCDayOfMonth, + "H": formatUTCHour24, + "I": formatUTCHour12, + "j": formatUTCDayOfYear, + "L": formatUTCMilliseconds, + "m": formatUTCMonthNumber, + "M": formatUTCMinutes, + "p": formatUTCPeriod, + "S": formatUTCSeconds, + "U": formatUTCWeekNumberSunday, + "w": formatUTCWeekdayNumber, + "W": formatUTCWeekNumberMonday, + "x": null, + "X": null, + "y": formatUTCYear, + "Y": formatUTCFullYear, + "Z": formatUTCZone, + "%": formatLiteralPercent + }; - // The am-pm flag is 0 for AM, and 1 for PM. - if ("p" in d) d.H = d.H % 12 + d.p * 12; + var parses = { + "a": parseShortWeekday, + "A": parseWeekday, + "b": parseShortMonth, + "B": parseMonth, + "c": parseLocaleDateTime, + "d": parseDayOfMonth, + "e": parseDayOfMonth, + "H": parseHour24, + "I": parseHour24, + "j": parseDayOfYear, + "L": parseMilliseconds, + "m": parseMonthNumber, + "M": parseMinutes, + "p": parsePeriod, + "S": parseSeconds, + "U": parseWeekNumberSunday, + "w": parseWeekdayNumber, + "W": parseWeekNumberMonday, + "x": parseLocaleDate, + "X": parseLocaleTime, + "y": parseYear, + "Y": parseFullYear, + "Z": parseZone, + "%": parseLiteralPercent + }; - // Convert day-of-week and week-of-year to day-of-year. - if ("W" in d || "U" in d) { - if (!("w" in d)) d.w = "W" in d ? 1 : 0; - var day = "Z" in d ? utcDate(newYear(d.y)).getUTCDay() : newDate(newYear(d.y)).getDay(); - d.m = 0; - d.d = "W" in d ? (d.w + 6) % 7 + d.W * 7 - (day + 5) % 7 : d.w + d.U * 7 - (day + 6) % 7; - } + // These recursive directive definitions must be deferred. + formats.x = newFormat(locale_date, formats); + formats.X = newFormat(locale_time, formats); + formats.c = newFormat(locale_dateTime, formats); + utcFormats.x = newFormat(locale_date, utcFormats); + utcFormats.X = newFormat(locale_time, utcFormats); + utcFormats.c = newFormat(locale_dateTime, utcFormats); - // If a time zone is specified, all fields are interpreted as UTC and then - // offset according to the specified time zone. - if ("Z" in d) { - d.H += d.Z / 100 | 0; - d.M += d.Z % 100; - return utcDate(d); - } - - // Otherwise, all fields are in local time. - return newDate(d); - }; - } - - function parseSpecifier(d, specifier, string, j) { - var i = 0, + function newFormat(specifier, formats) { + return function(date) { + var string = [], + i = -1, + j = 0, n = specifier.length, - m = string.length, c, - parse; + pad, + format; - while (i < n) { - if (j >= m) return -1; - c = specifier.charCodeAt(i++); - if (c === 37) { - c = specifier.charAt(i++); - parse = parses[c in pads ? specifier.charAt(i++) : c]; - if (!parse || ((j = parse(d, string, j)) < 0)) return -1; - } else if (c != string.charCodeAt(j++)) { - return -1; + if (!(date instanceof Date)) date = new Date(+date); + + while (++i < n) { + if (specifier.charCodeAt(i) === 37) { + string.push(specifier.slice(j, i)); + if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i); + else pad = c === "e" ? " " : "0"; + if (format = formats[c]) c = format(date, pad); + string.push(c); + j = i + 1; } } - return j; - } + string.push(specifier.slice(j, i)); + return string.join(""); + }; + } - function parsePeriod(d, string, i) { - var n = periodRe.exec(string.slice(i)); - return n ? (d.p = periodLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } + function newParse(specifier, newDate) { + return function(string) { + var d = newYear(1900), + i = parseSpecifier(d, specifier, string += "", 0); + if (i != string.length) return null; - function parseShortWeekday(d, string, i) { - var n = shortWeekdayRe.exec(string.slice(i)); - return n ? (d.w = shortWeekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } + // The am-pm flag is 0 for AM, and 1 for PM. + if ("p" in d) d.H = d.H % 12 + d.p * 12; - function parseWeekday(d, string, i) { - var n = weekdayRe.exec(string.slice(i)); - return n ? (d.w = weekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } + // Convert day-of-week and week-of-year to day-of-year. + if ("W" in d || "U" in d) { + if (!("w" in d)) d.w = "W" in d ? 1 : 0; + var day$$1 = "Z" in d ? utcDate(newYear(d.y)).getUTCDay() : newDate(newYear(d.y)).getDay(); + d.m = 0; + d.d = "W" in d ? (d.w + 6) % 7 + d.W * 7 - (day$$1 + 5) % 7 : d.w + d.U * 7 - (day$$1 + 6) % 7; + } - function parseShortMonth(d, string, i) { - var n = shortMonthRe.exec(string.slice(i)); - return n ? (d.m = shortMonthLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } - - function parseMonth(d, string, i) { - var n = monthRe.exec(string.slice(i)); - return n ? (d.m = monthLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } - - function parseLocaleDateTime(d, string, i) { - return parseSpecifier(d, locale_dateTime, string, i); - } - - function parseLocaleDate(d, string, i) { - return parseSpecifier(d, locale_date, string, i); - } - - function parseLocaleTime(d, string, i) { - return parseSpecifier(d, locale_time, string, i); - } - - function formatShortWeekday(d) { - return locale_shortWeekdays[d.getDay()]; - } - - function formatWeekday(d) { - return locale_weekdays[d.getDay()]; - } - - function formatShortMonth(d) { - return locale_shortMonths[d.getMonth()]; - } - - function formatMonth(d) { - return locale_months[d.getMonth()]; - } - - function formatPeriod(d) { - return locale_periods[+(d.getHours() >= 12)]; - } - - function formatUTCShortWeekday(d) { - return locale_shortWeekdays[d.getUTCDay()]; - } - - function formatUTCWeekday(d) { - return locale_weekdays[d.getUTCDay()]; - } - - function formatUTCShortMonth(d) { - return locale_shortMonths[d.getUTCMonth()]; - } - - function formatUTCMonth(d) { - return locale_months[d.getUTCMonth()]; - } - - function formatUTCPeriod(d) { - return locale_periods[+(d.getUTCHours() >= 12)]; - } - - return { - format: function(specifier) { - var f = newFormat(specifier += "", formats); - f.toString = function() { return specifier; }; - return f; - }, - parse: function(specifier) { - var p = newParse(specifier += "", localDate); - p.toString = function() { return specifier; }; - return p; - }, - utcFormat: function(specifier) { - var f = newFormat(specifier += "", utcFormats); - f.toString = function() { return specifier; }; - return f; - }, - utcParse: function(specifier) { - var p = newParse(specifier, utcDate); - p.toString = function() { return specifier; }; - return p; + // If a time zone is specified, all fields are interpreted as UTC and then + // offset according to the specified time zone. + if ("Z" in d) { + d.H += d.Z / 100 | 0; + d.M += d.Z % 100; + return utcDate(d); } + + // Otherwise, all fields are in local time. + return newDate(d); }; } - var pads = {"-": "", "_": " ", "0": "0"}; - var numberRe = /^\s*\d+/; - var percentRe = /^%/; - var requoteRe = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g; - function pad(value, fill, width) { - var sign = value < 0 ? "-" : "", - string = (sign ? -value : value) + "", - length = string.length; - return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string); - } + function parseSpecifier(d, specifier, string, j) { + var i = 0, + n = specifier.length, + m = string.length, + c, + parse; - function requote(s) { - return s.replace(requoteRe, "\\$&"); - } + while (i < n) { + if (j >= m) return -1; + c = specifier.charCodeAt(i++); + if (c === 37) { + c = specifier.charAt(i++); + parse = parses[c in pads ? specifier.charAt(i++) : c]; + if (!parse || ((j = parse(d, string, j)) < 0)) return -1; + } else if (c != string.charCodeAt(j++)) { + return -1; + } + } - function formatRe(names) { - return new RegExp("^(?:" + names.map(requote).join("|") + ")", "i"); + return j; } - function formatLookup(names) { - var map = {}, i = -1, n = names.length; - while (++i < n) map[names[i].toLowerCase()] = i; - return map; + function parsePeriod(d, string, i) { + var n = periodRe.exec(string.slice(i)); + return n ? (d.p = periodLookup[n[0].toLowerCase()], i + n[0].length) : -1; } - function parseWeekdayNumber(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 1)); - return n ? (d.w = +n[0], i + n[0].length) : -1; + function parseShortWeekday(d, string, i) { + var n = shortWeekdayRe.exec(string.slice(i)); + return n ? (d.w = shortWeekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1; } - function parseWeekNumberSunday(d, string, i) { - var n = numberRe.exec(string.slice(i)); - return n ? (d.U = +n[0], i + n[0].length) : -1; + function parseWeekday(d, string, i) { + var n = weekdayRe.exec(string.slice(i)); + return n ? (d.w = weekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1; } - function parseWeekNumberMonday(d, string, i) { - var n = numberRe.exec(string.slice(i)); - return n ? (d.W = +n[0], i + n[0].length) : -1; + function parseShortMonth(d, string, i) { + var n = shortMonthRe.exec(string.slice(i)); + return n ? (d.m = shortMonthLookup[n[0].toLowerCase()], i + n[0].length) : -1; } - function parseFullYear(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 4)); - return n ? (d.y = +n[0], i + n[0].length) : -1; + function parseMonth(d, string, i) { + var n = monthRe.exec(string.slice(i)); + return n ? (d.m = monthLookup[n[0].toLowerCase()], i + n[0].length) : -1; } - function parseYear(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1; + function parseLocaleDateTime(d, string, i) { + return parseSpecifier(d, locale_dateTime, string, i); } - function parseZone(d, string, i) { - var n = /^(Z)|([+-]\d\d)(?:\:?(\d\d))?/.exec(string.slice(i, i + 6)); - return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || "00")), i + n[0].length) : -1; + function parseLocaleDate(d, string, i) { + return parseSpecifier(d, locale_date, string, i); } - function parseMonthNumber(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.m = n[0] - 1, i + n[0].length) : -1; + function parseLocaleTime(d, string, i) { + return parseSpecifier(d, locale_time, string, i); } - function parseDayOfMonth(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.d = +n[0], i + n[0].length) : -1; + function formatShortWeekday(d) { + return locale_shortWeekdays[d.getDay()]; } - function parseDayOfYear(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 3)); - return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1; + function formatWeekday(d) { + return locale_weekdays[d.getDay()]; } - function parseHour24(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.H = +n[0], i + n[0].length) : -1; + function formatShortMonth(d) { + return locale_shortMonths[d.getMonth()]; } - function parseMinutes(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.M = +n[0], i + n[0].length) : -1; + function formatMonth(d) { + return locale_months[d.getMonth()]; } - function parseSeconds(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.S = +n[0], i + n[0].length) : -1; + function formatPeriod(d) { + return locale_periods[+(d.getHours() >= 12)]; } - function parseMilliseconds(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 3)); - return n ? (d.L = +n[0], i + n[0].length) : -1; + function formatUTCShortWeekday(d) { + return locale_shortWeekdays[d.getUTCDay()]; } - function parseLiteralPercent(d, string, i) { - var n = percentRe.exec(string.slice(i, i + 1)); - return n ? i + n[0].length : -1; + function formatUTCWeekday(d) { + return locale_weekdays[d.getUTCDay()]; } - function formatDayOfMonth(d, p) { - return pad(d.getDate(), p, 2); + function formatUTCShortMonth(d) { + return locale_shortMonths[d.getUTCMonth()]; } - function formatHour24(d, p) { - return pad(d.getHours(), p, 2); + function formatUTCMonth(d) { + return locale_months[d.getUTCMonth()]; } - function formatHour12(d, p) { - return pad(d.getHours() % 12 || 12, p, 2); + function formatUTCPeriod(d) { + return locale_periods[+(d.getUTCHours() >= 12)]; } - function formatDayOfYear(d, p) { - return pad(1 + day.count(year(d), d), p, 3); - } + return { + format: function(specifier) { + var f = newFormat(specifier += "", formats); + f.toString = function() { return specifier; }; + return f; + }, + parse: function(specifier) { + var p = newParse(specifier += "", localDate); + p.toString = function() { return specifier; }; + return p; + }, + utcFormat: function(specifier) { + var f = newFormat(specifier += "", utcFormats); + f.toString = function() { return specifier; }; + return f; + }, + utcParse: function(specifier) { + var p = newParse(specifier, utcDate); + p.toString = function() { return specifier; }; + return p; + } + }; +} - function formatMilliseconds(d, p) { - return pad(d.getMilliseconds(), p, 3); - } +var pads = {"-": "", "_": " ", "0": "0"}; +var numberRe = /^\s*\d+/; +var percentRe = /^%/; +var requoteRe = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g; - function formatMonthNumber(d, p) { - return pad(d.getMonth() + 1, p, 2); - } +function pad(value, fill, width) { + var sign = value < 0 ? "-" : "", + string = (sign ? -value : value) + "", + length = string.length; + return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string); +} - function formatMinutes(d, p) { - return pad(d.getMinutes(), p, 2); - } +function requote(s) { + return s.replace(requoteRe, "\\$&"); +} - function formatSeconds(d, p) { - return pad(d.getSeconds(), p, 2); - } +function formatRe(names) { + return new RegExp("^(?:" + names.map(requote).join("|") + ")", "i"); +} - function formatWeekNumberSunday(d, p) { - return pad(timeWeek.count(year(d), d), p, 2); - } +function formatLookup(names) { + var map = {}, i = -1, n = names.length; + while (++i < n) map[names[i].toLowerCase()] = i; + return map; +} - function formatWeekdayNumber(d) { - return d.getDay(); - } +function parseWeekdayNumber(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 1)); + return n ? (d.w = +n[0], i + n[0].length) : -1; +} - function formatWeekNumberMonday(d, p) { - return pad(timeMonday.count(year(d), d), p, 2); - } +function parseWeekNumberSunday(d, string, i) { + var n = numberRe.exec(string.slice(i)); + return n ? (d.U = +n[0], i + n[0].length) : -1; +} - function formatYear(d, p) { - return pad(d.getFullYear() % 100, p, 2); - } +function parseWeekNumberMonday(d, string, i) { + var n = numberRe.exec(string.slice(i)); + return n ? (d.W = +n[0], i + n[0].length) : -1; +} - function formatFullYear(d, p) { - return pad(d.getFullYear() % 10000, p, 4); - } +function parseFullYear(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 4)); + return n ? (d.y = +n[0], i + n[0].length) : -1; +} - function formatZone(d) { - var z = d.getTimezoneOffset(); - return (z > 0 ? "-" : (z *= -1, "+")) - + pad(z / 60 | 0, "0", 2) - + pad(z % 60, "0", 2); - } +function parseYear(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1; +} - function formatUTCDayOfMonth(d, p) { - return pad(d.getUTCDate(), p, 2); - } +function parseZone(d, string, i) { + var n = /^(Z)|([+-]\d\d)(?:\:?(\d\d))?/.exec(string.slice(i, i + 6)); + return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || "00")), i + n[0].length) : -1; +} - function formatUTCHour24(d, p) { - return pad(d.getUTCHours(), p, 2); - } +function parseMonthNumber(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.m = n[0] - 1, i + n[0].length) : -1; +} - function formatUTCHour12(d, p) { - return pad(d.getUTCHours() % 12 || 12, p, 2); - } +function parseDayOfMonth(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.d = +n[0], i + n[0].length) : -1; +} - function formatUTCDayOfYear(d, p) { - return pad(1 + utcDay.count(utcYear(d), d), p, 3); - } +function parseDayOfYear(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 3)); + return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1; +} - function formatUTCMilliseconds(d, p) { - return pad(d.getUTCMilliseconds(), p, 3); - } +function parseHour24(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.H = +n[0], i + n[0].length) : -1; +} - function formatUTCMonthNumber(d, p) { - return pad(d.getUTCMonth() + 1, p, 2); - } +function parseMinutes(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.M = +n[0], i + n[0].length) : -1; +} - function formatUTCMinutes(d, p) { - return pad(d.getUTCMinutes(), p, 2); - } +function parseSeconds(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.S = +n[0], i + n[0].length) : -1; +} - function formatUTCSeconds(d, p) { - return pad(d.getUTCSeconds(), p, 2); - } +function parseMilliseconds(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 3)); + return n ? (d.L = +n[0], i + n[0].length) : -1; +} - function formatUTCWeekNumberSunday(d, p) { - return pad(utcWeek.count(utcYear(d), d), p, 2); - } +function parseLiteralPercent(d, string, i) { + var n = percentRe.exec(string.slice(i, i + 1)); + return n ? i + n[0].length : -1; +} - function formatUTCWeekdayNumber(d) { - return d.getUTCDay(); - } +function formatDayOfMonth(d, p) { + return pad(d.getDate(), p, 2); +} - function formatUTCWeekNumberMonday(d, p) { - return pad(utcMonday.count(utcYear(d), d), p, 2); - } +function formatHour24(d, p) { + return pad(d.getHours(), p, 2); +} - function formatUTCYear(d, p) { - return pad(d.getUTCFullYear() % 100, p, 2); - } +function formatHour12(d, p) { + return pad(d.getHours() % 12 || 12, p, 2); +} - function formatUTCFullYear(d, p) { - return pad(d.getUTCFullYear() % 10000, p, 4); - } +function formatDayOfYear(d, p) { + return pad(1 + day.count(year(d), d), p, 3); +} - function formatUTCZone() { - return "+0000"; - } +function formatMilliseconds(d, p) { + return pad(d.getMilliseconds(), p, 3); +} - function formatLiteralPercent() { - return "%"; - } +function formatMonthNumber(d, p) { + return pad(d.getMonth() + 1, p, 2); +} - var locale$1; - defaultLocale$1({ - dateTime: "%x, %X", - date: "%-m/%-d/%Y", - time: "%-I:%M:%S %p", - periods: ["AM", "PM"], - days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"], - shortDays: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"], - months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"], - shortMonths: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"] - }); +function formatMinutes(d, p) { + return pad(d.getMinutes(), p, 2); +} - function defaultLocale$1(definition) { - locale$1 = formatLocale$1(definition); - exports.timeFormat = locale$1.format; - exports.timeParse = locale$1.parse; - exports.utcFormat = locale$1.utcFormat; - exports.utcParse = locale$1.utcParse; - return locale$1; - } +function formatSeconds(d, p) { + return pad(d.getSeconds(), p, 2); +} - var isoSpecifier = "%Y-%m-%dT%H:%M:%S.%LZ"; +function formatWeekNumberSunday(d, p) { + return pad(sunday.count(year(d), d), p, 2); +} - function formatIsoNative(date) { - return date.toISOString(); - } +function formatWeekdayNumber(d) { + return d.getDay(); +} - var formatIso = Date.prototype.toISOString - ? formatIsoNative - : exports.utcFormat(isoSpecifier); +function formatWeekNumberMonday(d, p) { + return pad(monday.count(year(d), d), p, 2); +} - function parseIsoNative(string) { - var date = new Date(string); - return isNaN(date) ? null : date; - } +function formatYear(d, p) { + return pad(d.getFullYear() % 100, p, 2); +} - var parseIso = +new Date("2000-01-01T00:00:00.000Z") - ? parseIsoNative - : exports.utcParse(isoSpecifier); +function formatFullYear(d, p) { + return pad(d.getFullYear() % 10000, p, 4); +} - var array$2 = Array.prototype; +function formatZone(d) { + var z = d.getTimezoneOffset(); + return (z > 0 ? "-" : (z *= -1, "+")) + + pad(z / 60 | 0, "0", 2) + + pad(z % 60, "0", 2); +} - var map$2 = array$2.map; - var slice$3 = array$2.slice; +function formatUTCDayOfMonth(d, p) { + return pad(d.getUTCDate(), p, 2); +} - var implicit = {name: "implicit"}; +function formatUTCHour24(d, p) { + return pad(d.getUTCHours(), p, 2); +} - function ordinal(range) { - var index = map$1(), - domain = [], - unknown = implicit; +function formatUTCHour12(d, p) { + return pad(d.getUTCHours() % 12 || 12, p, 2); +} - range = range == null ? [] : slice$3.call(range); +function formatUTCDayOfYear(d, p) { + return pad(1 + utcDay.count(utcYear(d), d), p, 3); +} - function scale(d) { - var key = d + "", i = index.get(key); - if (!i) { - if (unknown !== implicit) return unknown; - index.set(key, i = domain.push(d)); - } - return range[(i - 1) % range.length]; - } +function formatUTCMilliseconds(d, p) { + return pad(d.getUTCMilliseconds(), p, 3); +} - scale.domain = function(_) { - if (!arguments.length) return domain.slice(); - domain = [], index = map$1(); - var i = -1, n = _.length, d, key; - while (++i < n) if (!index.has(key = (d = _[i]) + "")) index.set(key, domain.push(d)); - return scale; - }; +function formatUTCMonthNumber(d, p) { + return pad(d.getUTCMonth() + 1, p, 2); +} - scale.range = function(_) { - return arguments.length ? (range = slice$3.call(_), scale) : range.slice(); - }; +function formatUTCMinutes(d, p) { + return pad(d.getUTCMinutes(), p, 2); +} - scale.unknown = function(_) { - return arguments.length ? (unknown = _, scale) : unknown; - }; +function formatUTCSeconds(d, p) { + return pad(d.getUTCSeconds(), p, 2); +} - scale.copy = function() { - return ordinal() - .domain(domain) - .range(range) - .unknown(unknown); - }; +function formatUTCWeekNumberSunday(d, p) { + return pad(utcSunday.count(utcYear(d), d), p, 2); +} - return scale; - } +function formatUTCWeekdayNumber(d) { + return d.getUTCDay(); +} - function band() { - var scale = ordinal().unknown(undefined), - domain = scale.domain, - ordinalRange = scale.range, - range$$ = [0, 1], - step, - bandwidth, - round = false, - paddingInner = 0, - paddingOuter = 0, - align = 0.5; +function formatUTCWeekNumberMonday(d, p) { + return pad(utcMonday.count(utcYear(d), d), p, 2); +} - delete scale.unknown; +function formatUTCYear(d, p) { + return pad(d.getUTCFullYear() % 100, p, 2); +} - function rescale() { - var n = domain().length, - reverse = range$$[1] < range$$[0], - start = range$$[reverse - 0], - stop = range$$[1 - reverse]; - step = (stop - start) / Math.max(1, n - paddingInner + paddingOuter * 2); - if (round) step = Math.floor(step); - start += (stop - start - step * (n - paddingInner)) * align; - bandwidth = step * (1 - paddingInner); - if (round) start = Math.round(start), bandwidth = Math.round(bandwidth); - var values = range(n).map(function(i) { return start + step * i; }); - return ordinalRange(reverse ? values.reverse() : values); - } +function formatUTCFullYear(d, p) { + return pad(d.getUTCFullYear() % 10000, p, 4); +} - scale.domain = function(_) { - return arguments.length ? (domain(_), rescale()) : domain(); - }; +function formatUTCZone() { + return "+0000"; +} - scale.range = function(_) { - return arguments.length ? (range$$ = [+_[0], +_[1]], rescale()) : range$$.slice(); - }; +function formatLiteralPercent() { + return "%"; +} - scale.rangeRound = function(_) { - return range$$ = [+_[0], +_[1]], round = true, rescale(); - }; +var locale$2; - scale.bandwidth = function() { - return bandwidth; - }; - scale.step = function() { - return step; - }; - scale.round = function(_) { - return arguments.length ? (round = !!_, rescale()) : round; - }; - scale.padding = function(_) { - return arguments.length ? (paddingInner = paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingInner; - }; - scale.paddingInner = function(_) { - return arguments.length ? (paddingInner = Math.max(0, Math.min(1, _)), rescale()) : paddingInner; - }; +defaultLocale$1({ + dateTime: "%x, %X", + date: "%-m/%-d/%Y", + time: "%-I:%M:%S %p", + periods: ["AM", "PM"], + days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"], + shortDays: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"], + months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"], + shortMonths: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"] +}); - scale.paddingOuter = function(_) { - return arguments.length ? (paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingOuter; - }; +function defaultLocale$1(definition) { + locale$2 = formatLocale$1(definition); + exports.timeFormat = locale$2.format; + exports.timeParse = locale$2.parse; + exports.utcFormat = locale$2.utcFormat; + exports.utcParse = locale$2.utcParse; + return locale$2; +} - scale.align = function(_) { - return arguments.length ? (align = Math.max(0, Math.min(1, _)), rescale()) : align; - }; +var isoSpecifier = "%Y-%m-%dT%H:%M:%S.%LZ"; - scale.copy = function() { - return band() - .domain(domain()) - .range(range$$) - .round(round) - .paddingInner(paddingInner) - .paddingOuter(paddingOuter) - .align(align); - }; +function formatIsoNative(date) { + return date.toISOString(); +} - return rescale(); - } +var formatIso = Date.prototype.toISOString + ? formatIsoNative + : exports.utcFormat(isoSpecifier); - function pointish(scale) { - var copy = scale.copy; +function parseIsoNative(string) { + var date = new Date(string); + return isNaN(date) ? null : date; +} - scale.padding = scale.paddingOuter; - delete scale.paddingInner; - delete scale.paddingOuter; +var parseIso = +new Date("2000-01-01T00:00:00.000Z") + ? parseIsoNative + : exports.utcParse(isoSpecifier); - scale.copy = function() { - return pointish(copy()); - }; +var array$2 = Array.prototype; - return scale; - } +var map$3 = array$2.map; +var slice$3 = array$2.slice; - function point$4() { - return pointish(band().paddingInner(1)); - } +var implicit = {name: "implicit"}; - function constant$3(x) { - return function() { - return x; - }; - } +function ordinal(range) { + var index = map$1(), + domain = [], + unknown = implicit; - function number$1(x) { - return +x; - } + range = range == null ? [] : slice$3.call(range); - var unit = [0, 1]; - - function deinterpolate(a, b) { - return (b -= (a = +a)) - ? function(x) { return (x - a) / b; } - : constant$3(b); + function scale(d) { + var key = d + "", i = index.get(key); + if (!i) { + if (unknown !== implicit) return unknown; + index.set(key, i = domain.push(d)); + } + return range[(i - 1) % range.length]; } - function deinterpolateClamp(deinterpolate) { - return function(a, b) { - var d = deinterpolate(a = +a, b = +b); - return function(x) { return x <= a ? 0 : x >= b ? 1 : d(x); }; - }; - } + scale.domain = function(_) { + if (!arguments.length) return domain.slice(); + domain = [], index = map$1(); + var i = -1, n = _.length, d, key; + while (++i < n) if (!index.has(key = (d = _[i]) + "")) index.set(key, domain.push(d)); + return scale; + }; - function reinterpolateClamp(reinterpolate) { - return function(a, b) { - var r = reinterpolate(a = +a, b = +b); - return function(t) { return t <= 0 ? a : t >= 1 ? b : r(t); }; - }; - } + scale.range = function(_) { + return arguments.length ? (range = slice$3.call(_), scale) : range.slice(); + }; - function bimap(domain, range, deinterpolate, reinterpolate) { - var d0 = domain[0], d1 = domain[1], r0 = range[0], r1 = range[1]; - if (d1 < d0) d0 = deinterpolate(d1, d0), r0 = reinterpolate(r1, r0); - else d0 = deinterpolate(d0, d1), r0 = reinterpolate(r0, r1); - return function(x) { return r0(d0(x)); }; - } + scale.unknown = function(_) { + return arguments.length ? (unknown = _, scale) : unknown; + }; - function polymap(domain, range, deinterpolate, reinterpolate) { - var j = Math.min(domain.length, range.length) - 1, - d = new Array(j), - r = new Array(j), - i = -1; + scale.copy = function() { + return ordinal() + .domain(domain) + .range(range) + .unknown(unknown); + }; - // Reverse descending domains. - if (domain[j] < domain[0]) { - domain = domain.slice().reverse(); - range = range.slice().reverse(); - } + return scale; +} - while (++i < j) { - d[i] = deinterpolate(domain[i], domain[i + 1]); - r[i] = reinterpolate(range[i], range[i + 1]); - } +function band() { + var scale = ordinal().unknown(undefined), + domain = scale.domain, + ordinalRange = scale.range, + range$$1 = [0, 1], + step, + bandwidth, + round = false, + paddingInner = 0, + paddingOuter = 0, + align = 0.5; - return function(x) { - var i = bisectRight(domain, x, 1, j) - 1; - return r[i](d[i](x)); - }; - } + delete scale.unknown; - function copy(source, target) { - return target - .domain(source.domain()) - .range(source.range()) - .interpolate(source.interpolate()) - .clamp(source.clamp()); + function rescale() { + var n = domain().length, + reverse = range$$1[1] < range$$1[0], + start = range$$1[reverse - 0], + stop = range$$1[1 - reverse]; + step = (stop - start) / Math.max(1, n - paddingInner + paddingOuter * 2); + if (round) step = Math.floor(step); + start += (stop - start - step * (n - paddingInner)) * align; + bandwidth = step * (1 - paddingInner); + if (round) start = Math.round(start), bandwidth = Math.round(bandwidth); + var values = range(n).map(function(i) { return start + step * i; }); + return ordinalRange(reverse ? values.reverse() : values); } - // deinterpolate(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1]. - // reinterpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding domain value x in [a,b]. - function continuous(deinterpolate$$, reinterpolate) { - var domain = unit, - range = unit, - interpolate$$ = interpolate, - clamp = false, - piecewise, - output, - input; + scale.domain = function(_) { + return arguments.length ? (domain(_), rescale()) : domain(); + }; - function rescale() { - piecewise = Math.min(domain.length, range.length) > 2 ? polymap : bimap; - output = input = null; - return scale; - } + scale.range = function(_) { + return arguments.length ? (range$$1 = [+_[0], +_[1]], rescale()) : range$$1.slice(); + }; - function scale(x) { - return (output || (output = piecewise(domain, range, clamp ? deinterpolateClamp(deinterpolate$$) : deinterpolate$$, interpolate$$)))(+x); - } + scale.rangeRound = function(_) { + return range$$1 = [+_[0], +_[1]], round = true, rescale(); + }; - scale.invert = function(y) { - return (input || (input = piecewise(range, domain, deinterpolate, clamp ? reinterpolateClamp(reinterpolate) : reinterpolate)))(+y); - }; + scale.bandwidth = function() { + return bandwidth; + }; - scale.domain = function(_) { - return arguments.length ? (domain = map$2.call(_, number$1), rescale()) : domain.slice(); - }; + scale.step = function() { + return step; + }; - scale.range = function(_) { - return arguments.length ? (range = slice$3.call(_), rescale()) : range.slice(); - }; + scale.round = function(_) { + return arguments.length ? (round = !!_, rescale()) : round; + }; - scale.rangeRound = function(_) { - return range = slice$3.call(_), interpolate$$ = interpolateRound, rescale(); - }; + scale.padding = function(_) { + return arguments.length ? (paddingInner = paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingInner; + }; - scale.clamp = function(_) { - return arguments.length ? (clamp = !!_, rescale()) : clamp; - }; + scale.paddingInner = function(_) { + return arguments.length ? (paddingInner = Math.max(0, Math.min(1, _)), rescale()) : paddingInner; + }; - scale.interpolate = function(_) { - return arguments.length ? (interpolate$$ = _, rescale()) : interpolate$$; - }; + scale.paddingOuter = function(_) { + return arguments.length ? (paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingOuter; + }; - return rescale(); - } + scale.align = function(_) { + return arguments.length ? (align = Math.max(0, Math.min(1, _)), rescale()) : align; + }; - function tickFormat(domain, count, specifier) { - var start = domain[0], - stop = domain[domain.length - 1], - step = tickStep(start, stop, count == null ? 10 : count), - precision; - specifier = formatSpecifier(specifier == null ? ",f" : specifier); - switch (specifier.type) { - case "s": { - var value = Math.max(Math.abs(start), Math.abs(stop)); - if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision; - return exports.formatPrefix(specifier, value); - } - case "": - case "e": - case "g": - case "p": - case "r": { - if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e"); - break; - } - case "f": - case "%": { - if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2; - break; - } - } - return exports.format(specifier); - } + scale.copy = function() { + return band() + .domain(domain()) + .range(range$$1) + .round(round) + .paddingInner(paddingInner) + .paddingOuter(paddingOuter) + .align(align); + }; - function linearish(scale) { - var domain = scale.domain; + return rescale(); +} - scale.ticks = function(count) { - var d = domain(); - return ticks(d[0], d[d.length - 1], count == null ? 10 : count); - }; +function pointish(scale) { + var copy = scale.copy; - scale.tickFormat = function(count, specifier) { - return tickFormat(domain(), count, specifier); - }; + scale.padding = scale.paddingOuter; + delete scale.paddingInner; + delete scale.paddingOuter; - scale.nice = function(count) { - var d = domain(), - i = d.length - 1, - n = count == null ? 10 : count, - start = d[0], - stop = d[i], - step = tickStep(start, stop, n); + scale.copy = function() { + return pointish(copy()); + }; - if (step) { - step = tickStep(Math.floor(start / step) * step, Math.ceil(stop / step) * step, n); - d[0] = Math.floor(start / step) * step; - d[i] = Math.ceil(stop / step) * step; - domain(d); - } + return scale; +} - return scale; - }; +function point$4() { + return pointish(band().paddingInner(1)); +} - return scale; - } +var constant$4 = function(x) { + return function() { + return x; + }; +} - function linear$2() { - var scale = continuous(deinterpolate, interpolateNumber); +var number$1 = function(x) { + return +x; +} - scale.copy = function() { - return copy(scale, linear$2()); - }; +var unit = [0, 1]; - return linearish(scale); - } +function deinterpolateLinear(a, b) { + return (b -= (a = +a)) + ? function(x) { return (x - a) / b; } + : constant$4(b); +} - function identity$4() { - var domain = [0, 1]; +function deinterpolateClamp(deinterpolate) { + return function(a, b) { + var d = deinterpolate(a = +a, b = +b); + return function(x) { return x <= a ? 0 : x >= b ? 1 : d(x); }; + }; +} - function scale(x) { - return +x; - } +function reinterpolateClamp(reinterpolate) { + return function(a, b) { + var r = reinterpolate(a = +a, b = +b); + return function(t) { return t <= 0 ? a : t >= 1 ? b : r(t); }; + }; +} - scale.invert = scale; +function bimap(domain, range$$1, deinterpolate, reinterpolate) { + var d0 = domain[0], d1 = domain[1], r0 = range$$1[0], r1 = range$$1[1]; + if (d1 < d0) d0 = deinterpolate(d1, d0), r0 = reinterpolate(r1, r0); + else d0 = deinterpolate(d0, d1), r0 = reinterpolate(r0, r1); + return function(x) { return r0(d0(x)); }; +} - scale.domain = scale.range = function(_) { - return arguments.length ? (domain = map$2.call(_, number$1), scale) : domain.slice(); - }; +function polymap(domain, range$$1, deinterpolate, reinterpolate) { + var j = Math.min(domain.length, range$$1.length) - 1, + d = new Array(j), + r = new Array(j), + i = -1; - scale.copy = function() { - return identity$4().domain(domain); - }; + // Reverse descending domains. + if (domain[j] < domain[0]) { + domain = domain.slice().reverse(); + range$$1 = range$$1.slice().reverse(); + } - return linearish(scale); + while (++i < j) { + d[i] = deinterpolate(domain[i], domain[i + 1]); + r[i] = reinterpolate(range$$1[i], range$$1[i + 1]); } - function nice(domain, interval) { - domain = domain.slice(); + return function(x) { + var i = bisectRight(domain, x, 1, j) - 1; + return r[i](d[i](x)); + }; +} - var i0 = 0, - i1 = domain.length - 1, - x0 = domain[i0], - x1 = domain[i1], - t; +function copy(source, target) { + return target + .domain(source.domain()) + .range(source.range()) + .interpolate(source.interpolate()) + .clamp(source.clamp()); +} - if (x1 < x0) { - t = i0, i0 = i1, i1 = t; - t = x0, x0 = x1, x1 = t; - } +// deinterpolate(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1]. +// reinterpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding domain value x in [a,b]. +function continuous(deinterpolate, reinterpolate) { + var domain = unit, + range$$1 = unit, + interpolate$$1 = interpolate, + clamp = false, + piecewise, + output, + input; - domain[i0] = interval.floor(x0); - domain[i1] = interval.ceil(x1); - return domain; + function rescale() { + piecewise = Math.min(domain.length, range$$1.length) > 2 ? polymap : bimap; + output = input = null; + return scale; } - function deinterpolate$1(a, b) { - return (b = Math.log(b / a)) - ? function(x) { return Math.log(x / a) / b; } - : constant$3(b); + function scale(x) { + return (output || (output = piecewise(domain, range$$1, clamp ? deinterpolateClamp(deinterpolate) : deinterpolate, interpolate$$1)))(+x); } - function reinterpolate(a, b) { - return a < 0 - ? function(t) { return -Math.pow(-b, t) * Math.pow(-a, 1 - t); } - : function(t) { return Math.pow(b, t) * Math.pow(a, 1 - t); }; - } + scale.invert = function(y) { + return (input || (input = piecewise(range$$1, domain, deinterpolateLinear, clamp ? reinterpolateClamp(reinterpolate) : reinterpolate)))(+y); + }; - function pow10(x) { - return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x; - } + scale.domain = function(_) { + return arguments.length ? (domain = map$3.call(_, number$1), rescale()) : domain.slice(); + }; - function powp(base) { - return base === 10 ? pow10 - : base === Math.E ? Math.exp - : function(x) { return Math.pow(base, x); }; - } + scale.range = function(_) { + return arguments.length ? (range$$1 = slice$3.call(_), rescale()) : range$$1.slice(); + }; - function logp(base) { - return base === Math.E ? Math.log - : base === 10 && Math.log10 - || base === 2 && Math.log2 - || (base = Math.log(base), function(x) { return Math.log(x) / base; }); - } + scale.rangeRound = function(_) { + return range$$1 = slice$3.call(_), interpolate$$1 = interpolateRound, rescale(); + }; - function reflect(f) { - return function(x) { - return -f(-x); - }; - } + scale.clamp = function(_) { + return arguments.length ? (clamp = !!_, rescale()) : clamp; + }; - function log() { - var scale = continuous(deinterpolate$1, reinterpolate).domain([1, 10]), - domain = scale.domain, - base = 10, - logs = logp(10), - pows = powp(10); + scale.interpolate = function(_) { + return arguments.length ? (interpolate$$1 = _, rescale()) : interpolate$$1; + }; - function rescale() { - logs = logp(base), pows = powp(base); - if (domain()[0] < 0) logs = reflect(logs), pows = reflect(pows); - return scale; + return rescale(); +} + +var tickFormat = function(domain, count, specifier) { + var start = domain[0], + stop = domain[domain.length - 1], + step = tickStep(start, stop, count == null ? 10 : count), + precision; + specifier = formatSpecifier(specifier == null ? ",f" : specifier); + switch (specifier.type) { + case "s": { + var value = Math.max(Math.abs(start), Math.abs(stop)); + if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision; + return exports.formatPrefix(specifier, value); } + case "": + case "e": + case "g": + case "p": + case "r": { + if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e"); + break; + } + case "f": + case "%": { + if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2; + break; + } + } + return exports.format(specifier); +} - scale.base = function(_) { - return arguments.length ? (base = +_, rescale()) : base; - }; +function linearish(scale) { + var domain = scale.domain; - scale.domain = function(_) { - return arguments.length ? (domain(_), rescale()) : domain(); - }; + scale.ticks = function(count) { + var d = domain(); + return ticks(d[0], d[d.length - 1], count == null ? 10 : count); + }; - scale.ticks = function(count) { - var d = domain(), - u = d[0], - v = d[d.length - 1], - r; + scale.tickFormat = function(count, specifier) { + return tickFormat(domain(), count, specifier); + }; - if (r = v < u) i = u, u = v, v = i; + scale.nice = function(count) { + var d = domain(), + i = d.length - 1, + n = count == null ? 10 : count, + start = d[0], + stop = d[i], + step = tickStep(start, stop, n); - var i = logs(u), - j = logs(v), - p, - k, - t, - n = count == null ? 10 : +count, - z = []; + if (step) { + step = tickStep(Math.floor(start / step) * step, Math.ceil(stop / step) * step, n); + d[0] = Math.floor(start / step) * step; + d[i] = Math.ceil(stop / step) * step; + domain(d); + } - if (!(base % 1) && j - i < n) { - i = Math.round(i) - 1, j = Math.round(j) + 1; - if (u > 0) for (; i < j; ++i) { - for (k = 1, p = pows(i); k < base; ++k) { - t = p * k; - if (t < u) continue; - if (t > v) break; - z.push(t); - } - } else for (; i < j; ++i) { - for (k = base - 1, p = pows(i); k >= 1; --k) { - t = p * k; - if (t < u) continue; - if (t > v) break; - z.push(t); - } - } - } else { - z = ticks(i, j, Math.min(j - i, n)).map(pows); - } + return scale; + }; - return r ? z.reverse() : z; - }; + return scale; +} - scale.tickFormat = function(count, specifier) { - if (specifier == null) specifier = base === 10 ? ".0e" : ","; - if (typeof specifier !== "function") specifier = exports.format(specifier); - if (count === Infinity) return specifier; - if (count == null) count = 10; - var k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate? - return function(d) { - var i = d / pows(Math.round(logs(d))); - if (i * base < base - 0.5) i *= base; - return i <= k ? specifier(d) : ""; - }; - }; +function linear$2() { + var scale = continuous(deinterpolateLinear, interpolateNumber); - scale.nice = function() { - return domain(nice(domain(), { - floor: function(x) { return pows(Math.floor(logs(x))); }, - ceil: function(x) { return pows(Math.ceil(logs(x))); } - })); - }; + scale.copy = function() { + return copy(scale, linear$2()); + }; - scale.copy = function() { - return copy(scale, log().base(base)); - }; + return linearish(scale); +} - return scale; - } +function identity$4() { + var domain = [0, 1]; - function raise(x, exponent) { - return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent); + function scale(x) { + return +x; } - function pow() { - var exponent = 1, - scale = continuous(deinterpolate, reinterpolate), - domain = scale.domain; + scale.invert = scale; - function deinterpolate(a, b) { - return (b = raise(b, exponent) - (a = raise(a, exponent))) - ? function(x) { return (raise(x, exponent) - a) / b; } - : constant$3(b); - } + scale.domain = scale.range = function(_) { + return arguments.length ? (domain = map$3.call(_, number$1), scale) : domain.slice(); + }; - function reinterpolate(a, b) { - b = raise(b, exponent) - (a = raise(a, exponent)); - return function(t) { return raise(a + b * t, 1 / exponent); }; - } + scale.copy = function() { + return identity$4().domain(domain); + }; - scale.exponent = function(_) { - return arguments.length ? (exponent = +_, domain(domain())) : exponent; - }; + return linearish(scale); +} - scale.copy = function() { - return copy(scale, pow().exponent(exponent)); - }; +var nice = function(domain, interval) { + domain = domain.slice(); - return linearish(scale); - } + var i0 = 0, + i1 = domain.length - 1, + x0 = domain[i0], + x1 = domain[i1], + t; - function sqrt() { - return pow().exponent(0.5); + if (x1 < x0) { + t = i0, i0 = i1, i1 = t; + t = x0, x0 = x1, x1 = t; } - function quantile() { - var domain = [], - range = [], - thresholds = []; + domain[i0] = interval.floor(x0); + domain[i1] = interval.ceil(x1); + return domain; +} - function rescale() { - var i = 0, n = Math.max(1, range.length); - thresholds = new Array(n - 1); - while (++i < n) thresholds[i - 1] = threshold(domain, i / n); - return scale; - } +function deinterpolate(a, b) { + return (b = Math.log(b / a)) + ? function(x) { return Math.log(x / a) / b; } + : constant$4(b); +} - function scale(x) { - if (!isNaN(x = +x)) return range[bisectRight(thresholds, x)]; - } +function reinterpolate(a, b) { + return a < 0 + ? function(t) { return -Math.pow(-b, t) * Math.pow(-a, 1 - t); } + : function(t) { return Math.pow(b, t) * Math.pow(a, 1 - t); }; +} - scale.invertExtent = function(y) { - var i = range.indexOf(y); - return i < 0 ? [NaN, NaN] : [ - i > 0 ? thresholds[i - 1] : domain[0], - i < thresholds.length ? thresholds[i] : domain[domain.length - 1] - ]; - }; +function pow10(x) { + return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x; +} - scale.domain = function(_) { - if (!arguments.length) return domain.slice(); - domain = []; - for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d); - domain.sort(ascending); - return rescale(); - }; +function powp(base) { + return base === 10 ? pow10 + : base === Math.E ? Math.exp + : function(x) { return Math.pow(base, x); }; +} - scale.range = function(_) { - return arguments.length ? (range = slice$3.call(_), rescale()) : range.slice(); - }; +function logp(base) { + return base === Math.E ? Math.log + : base === 10 && Math.log10 + || base === 2 && Math.log2 + || (base = Math.log(base), function(x) { return Math.log(x) / base; }); +} - scale.quantiles = function() { - return thresholds.slice(); - }; +function reflect(f) { + return function(x) { + return -f(-x); + }; +} - scale.copy = function() { - return quantile() - .domain(domain) - .range(range); - }; +function log() { + var scale = continuous(deinterpolate, reinterpolate).domain([1, 10]), + domain = scale.domain, + base = 10, + logs = logp(10), + pows = powp(10); + function rescale() { + logs = logp(base), pows = powp(base); + if (domain()[0] < 0) logs = reflect(logs), pows = reflect(pows); return scale; } - function quantize$1() { - var x0 = 0, - x1 = 1, - n = 1, - domain = [0.5], - range = [0, 1]; + scale.base = function(_) { + return arguments.length ? (base = +_, rescale()) : base; + }; - function scale(x) { - if (x <= x) return range[bisectRight(domain, x, 0, n)]; - } + scale.domain = function(_) { + return arguments.length ? (domain(_), rescale()) : domain(); + }; - function rescale() { - var i = -1; - domain = new Array(n); - while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1); - return scale; + scale.ticks = function(count) { + var d = domain(), + u = d[0], + v = d[d.length - 1], + r; + + if (r = v < u) i = u, u = v, v = i; + + var i = logs(u), + j = logs(v), + p, + k, + t, + n = count == null ? 10 : +count, + z = []; + + if (!(base % 1) && j - i < n) { + i = Math.round(i) - 1, j = Math.round(j) + 1; + if (u > 0) for (; i < j; ++i) { + for (k = 1, p = pows(i); k < base; ++k) { + t = p * k; + if (t < u) continue; + if (t > v) break; + z.push(t); + } + } else for (; i < j; ++i) { + for (k = base - 1, p = pows(i); k >= 1; --k) { + t = p * k; + if (t < u) continue; + if (t > v) break; + z.push(t); + } + } + } else { + z = ticks(i, j, Math.min(j - i, n)).map(pows); } - scale.domain = function(_) { - return arguments.length ? (x0 = +_[0], x1 = +_[1], rescale()) : [x0, x1]; - }; + return r ? z.reverse() : z; + }; - scale.range = function(_) { - return arguments.length ? (n = (range = slice$3.call(_)).length - 1, rescale()) : range.slice(); + scale.tickFormat = function(count, specifier) { + if (specifier == null) specifier = base === 10 ? ".0e" : ","; + if (typeof specifier !== "function") specifier = exports.format(specifier); + if (count === Infinity) return specifier; + if (count == null) count = 10; + var k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate? + return function(d) { + var i = d / pows(Math.round(logs(d))); + if (i * base < base - 0.5) i *= base; + return i <= k ? specifier(d) : ""; }; + }; - scale.invertExtent = function(y) { - var i = range.indexOf(y); - return i < 0 ? [NaN, NaN] - : i < 1 ? [x0, domain[0]] - : i >= n ? [domain[n - 1], x1] - : [domain[i - 1], domain[i]]; - }; + scale.nice = function() { + return domain(nice(domain(), { + floor: function(x) { return pows(Math.floor(logs(x))); }, + ceil: function(x) { return pows(Math.ceil(logs(x))); } + })); + }; - scale.copy = function() { - return quantize$1() - .domain([x0, x1]) - .range(range); - }; + scale.copy = function() { + return copy(scale, log().base(base)); + }; - return linearish(scale); + return scale; +} + +function raise(x, exponent) { + return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent); +} + +function pow() { + var exponent = 1, + scale = continuous(deinterpolate, reinterpolate), + domain = scale.domain; + + function deinterpolate(a, b) { + return (b = raise(b, exponent) - (a = raise(a, exponent))) + ? function(x) { return (raise(x, exponent) - a) / b; } + : constant$4(b); } - function threshold$1() { - var domain = [0.5], - range = [0, 1], - n = 1; + function reinterpolate(a, b) { + b = raise(b, exponent) - (a = raise(a, exponent)); + return function(t) { return raise(a + b * t, 1 / exponent); }; + } - function scale(x) { - if (x <= x) return range[bisectRight(domain, x, 0, n)]; - } + scale.exponent = function(_) { + return arguments.length ? (exponent = +_, domain(domain())) : exponent; + }; - scale.domain = function(_) { - return arguments.length ? (domain = slice$3.call(_), n = Math.min(domain.length, range.length - 1), scale) : domain.slice(); - }; + scale.copy = function() { + return copy(scale, pow().exponent(exponent)); + }; - scale.range = function(_) { - return arguments.length ? (range = slice$3.call(_), n = Math.min(domain.length, range.length - 1), scale) : range.slice(); - }; + return linearish(scale); +} - scale.invertExtent = function(y) { - var i = range.indexOf(y); - return [domain[i - 1], domain[i]]; - }; +function sqrt() { + return pow().exponent(0.5); +} - scale.copy = function() { - return threshold$1() - .domain(domain) - .range(range); - }; +function quantile$$1() { + var domain = [], + range$$1 = [], + thresholds = []; + function rescale() { + var i = 0, n = Math.max(1, range$$1.length); + thresholds = new Array(n - 1); + while (++i < n) thresholds[i - 1] = threshold(domain, i / n); return scale; } -var durationSecond$1 = 1000; -var durationMinute$1 = durationSecond$1 * 60; -var durationHour$1 = durationMinute$1 * 60; -var durationDay$1 = durationHour$1 * 24; -var durationWeek$1 = durationDay$1 * 7; - var durationMonth = durationDay$1 * 30; - var durationYear = durationDay$1 * 365; - function date$1(t) { - return new Date(t); + function scale(x) { + if (!isNaN(x = +x)) return range$$1[bisectRight(thresholds, x)]; } - function number$2(t) { - return t instanceof Date ? +t : +new Date(+t); - } + scale.invertExtent = function(y) { + var i = range$$1.indexOf(y); + return i < 0 ? [NaN, NaN] : [ + i > 0 ? thresholds[i - 1] : domain[0], + i < thresholds.length ? thresholds[i] : domain[domain.length - 1] + ]; + }; - function calendar(year, month, week, day, hour, minute, second, millisecond, format) { - var scale = continuous(deinterpolate, interpolateNumber), - invert = scale.invert, - domain = scale.domain; + scale.domain = function(_) { + if (!arguments.length) return domain.slice(); + domain = []; + for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d); + domain.sort(ascending); + return rescale(); + }; - var formatMillisecond = format(".%L"), - formatSecond = format(":%S"), - formatMinute = format("%I:%M"), - formatHour = format("%I %p"), - formatDay = format("%a %d"), - formatWeek = format("%b %d"), - formatMonth = format("%B"), - formatYear = format("%Y"); + scale.range = function(_) { + return arguments.length ? (range$$1 = slice$3.call(_), rescale()) : range$$1.slice(); + }; - var tickIntervals = [ - [second, 1, durationSecond$1], - [second, 5, 5 * durationSecond$1], - [second, 15, 15 * durationSecond$1], - [second, 30, 30 * durationSecond$1], - [minute, 1, durationMinute$1], - [minute, 5, 5 * durationMinute$1], - [minute, 15, 15 * durationMinute$1], - [minute, 30, 30 * durationMinute$1], - [ hour, 1, durationHour$1 ], - [ hour, 3, 3 * durationHour$1 ], - [ hour, 6, 6 * durationHour$1 ], - [ hour, 12, 12 * durationHour$1 ], - [ day, 1, durationDay$1 ], - [ day, 2, 2 * durationDay$1 ], - [ week, 1, durationWeek$1 ], - [ month, 1, durationMonth ], - [ month, 3, 3 * durationMonth ], - [ year, 1, durationYear ] - ]; + scale.quantiles = function() { + return thresholds.slice(); + }; - function tickFormat(date) { - return (second(date) < date ? formatMillisecond - : minute(date) < date ? formatSecond - : hour(date) < date ? formatMinute - : day(date) < date ? formatHour - : month(date) < date ? (week(date) < date ? formatDay : formatWeek) - : year(date) < date ? formatMonth - : formatYear)(date); - } + scale.copy = function() { + return quantile$$1() + .domain(domain) + .range(range$$1); + }; - function tickInterval(interval, start, stop, step) { - if (interval == null) interval = 10; + return scale; +} - // If a desired tick count is specified, pick a reasonable tick interval - // based on the extent of the domain and a rough estimate of tick size. - // Otherwise, assume interval is already a time interval and use it. - if (typeof interval === "number") { - var target = Math.abs(stop - start) / interval, - i = bisector(function(i) { return i[2]; }).right(tickIntervals, target); - if (i === tickIntervals.length) { - step = tickStep(start / durationYear, stop / durationYear, interval); - interval = year; - } else if (i) { - i = tickIntervals[target / tickIntervals[i - 1][2] < tickIntervals[i][2] / target ? i - 1 : i]; - step = i[1]; - interval = i[0]; - } else { - step = tickStep(start, stop, interval); - interval = millisecond; - } - } +function quantize$1() { + var x0 = 0, + x1 = 1, + n = 1, + domain = [0.5], + range$$1 = [0, 1]; - return step == null ? interval : interval.every(step); - } + function scale(x) { + if (x <= x) return range$$1[bisectRight(domain, x, 0, n)]; + } - scale.invert = function(y) { - return new Date(invert(y)); - }; + function rescale() { + var i = -1; + domain = new Array(n); + while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1); + return scale; + } - scale.domain = function(_) { - return arguments.length ? domain(map$2.call(_, number$2)) : domain().map(date$1); - }; + scale.domain = function(_) { + return arguments.length ? (x0 = +_[0], x1 = +_[1], rescale()) : [x0, x1]; + }; - scale.ticks = function(interval, step) { - var d = domain(), - t0 = d[0], - t1 = d[d.length - 1], - r = t1 < t0, - t; - if (r) t = t0, t0 = t1, t1 = t; - t = tickInterval(interval, t0, t1, step); - t = t ? t.range(t0, t1 + 1) : []; // inclusive stop - return r ? t.reverse() : t; - }; + scale.range = function(_) { + return arguments.length ? (n = (range$$1 = slice$3.call(_)).length - 1, rescale()) : range$$1.slice(); + }; - scale.tickFormat = function(count, specifier) { - return specifier == null ? tickFormat : format(specifier); - }; + scale.invertExtent = function(y) { + var i = range$$1.indexOf(y); + return i < 0 ? [NaN, NaN] + : i < 1 ? [x0, domain[0]] + : i >= n ? [domain[n - 1], x1] + : [domain[i - 1], domain[i]]; + }; - scale.nice = function(interval, step) { - var d = domain(); - return (interval = tickInterval(interval, d[0], d[d.length - 1], step)) - ? domain(nice(d, interval)) - : scale; - }; + scale.copy = function() { + return quantize$1() + .domain([x0, x1]) + .range(range$$1); + }; - scale.copy = function() { - return copy(scale, calendar(year, month, week, day, hour, minute, second, millisecond, format)); - }; + return linearish(scale); +} - return scale; - } +function threshold$1() { + var domain = [0.5], + range$$1 = [0, 1], + n = 1; - function time() { - return calendar(year, month, timeWeek, day, hour, minute, second, millisecond, exports.timeFormat).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]); + function scale(x) { + if (x <= x) return range$$1[bisectRight(domain, x, 0, n)]; } - function utcTime() { - return calendar(utcYear, utcMonth, utcWeek, utcDay, utcHour, utcMinute, second, millisecond, exports.utcFormat).domain([Date.UTC(2000, 0, 1), Date.UTC(2000, 0, 2)]); - } + scale.domain = function(_) { + return arguments.length ? (domain = slice$3.call(_), n = Math.min(domain.length, range$$1.length - 1), scale) : domain.slice(); + }; - function colors(s) { - return s.match(/.{6}/g).map(function(x) { - return "#" + x; - }); - } + scale.range = function(_) { + return arguments.length ? (range$$1 = slice$3.call(_), n = Math.min(domain.length, range$$1.length - 1), scale) : range$$1.slice(); + }; - var category10 = colors("1f77b4ff7f0e2ca02cd627289467bd8c564be377c27f7f7fbcbd2217becf"); + scale.invertExtent = function(y) { + var i = range$$1.indexOf(y); + return [domain[i - 1], domain[i]]; + }; - var category20b = colors("393b795254a36b6ecf9c9ede6379398ca252b5cf6bcedb9c8c6d31bd9e39e7ba52e7cb94843c39ad494ad6616be7969c7b4173a55194ce6dbdde9ed6"); + scale.copy = function() { + return threshold$1() + .domain(domain) + .range(range$$1); + }; - var category20c = colors("3182bd6baed69ecae1c6dbefe6550dfd8d3cfdae6bfdd0a231a35474c476a1d99bc7e9c0756bb19e9ac8bcbddcdadaeb636363969696bdbdbdd9d9d9"); + return scale; +} - var category20 = colors("1f77b4aec7e8ff7f0effbb782ca02c98df8ad62728ff98969467bdc5b0d58c564bc49c94e377c2f7b6d27f7f7fc7c7c7bcbd22dbdb8d17becf9edae5"); +var durationSecond$1 = 1000; +var durationMinute$1 = durationSecond$1 * 60; +var durationHour$1 = durationMinute$1 * 60; +var durationDay$1 = durationHour$1 * 24; +var durationWeek$1 = durationDay$1 * 7; +var durationMonth = durationDay$1 * 30; +var durationYear = durationDay$1 * 365; - var cubehelix$3 = interpolateCubehelixLong(cubehelix(300, 0.5, 0.0), cubehelix(-240, 0.5, 1.0)); +function date$1(t) { + return new Date(t); +} - var warm = interpolateCubehelixLong(cubehelix(-100, 0.75, 0.35), cubehelix(80, 1.50, 0.8)); +function number$2(t) { + return t instanceof Date ? +t : +new Date(+t); +} - var cool = interpolateCubehelixLong(cubehelix(260, 0.75, 0.35), cubehelix(80, 1.50, 0.8)); +function calendar(year$$1, month$$1, week, day$$1, hour$$1, minute$$1, second$$1, millisecond$$1, format) { + var scale = continuous(deinterpolateLinear, interpolateNumber), + invert = scale.invert, + domain = scale.domain; - var rainbow = cubehelix(); + var formatMillisecond = format(".%L"), + formatSecond = format(":%S"), + formatMinute = format("%I:%M"), + formatHour = format("%I %p"), + formatDay = format("%a %d"), + formatWeek = format("%b %d"), + formatMonth = format("%B"), + formatYear = format("%Y"); - function rainbow$1(t) { - if (t < 0 || t > 1) t -= Math.floor(t); - var ts = Math.abs(t - 0.5); - rainbow.h = 360 * t - 100; - rainbow.s = 1.5 - 1.5 * ts; - rainbow.l = 0.8 - 0.9 * ts; - return rainbow + ""; + var tickIntervals = [ + [second$$1, 1, durationSecond$1], + [second$$1, 5, 5 * durationSecond$1], + [second$$1, 15, 15 * durationSecond$1], + [second$$1, 30, 30 * durationSecond$1], + [minute$$1, 1, durationMinute$1], + [minute$$1, 5, 5 * durationMinute$1], + [minute$$1, 15, 15 * durationMinute$1], + [minute$$1, 30, 30 * durationMinute$1], + [ hour$$1, 1, durationHour$1 ], + [ hour$$1, 3, 3 * durationHour$1 ], + [ hour$$1, 6, 6 * durationHour$1 ], + [ hour$$1, 12, 12 * durationHour$1 ], + [ day$$1, 1, durationDay$1 ], + [ day$$1, 2, 2 * durationDay$1 ], + [ week, 1, durationWeek$1 ], + [ month$$1, 1, durationMonth ], + [ month$$1, 3, 3 * durationMonth ], + [ year$$1, 1, durationYear ] + ]; + + function tickFormat(date) { + return (second$$1(date) < date ? formatMillisecond + : minute$$1(date) < date ? formatSecond + : hour$$1(date) < date ? formatMinute + : day$$1(date) < date ? formatHour + : month$$1(date) < date ? (week(date) < date ? formatDay : formatWeek) + : year$$1(date) < date ? formatMonth + : formatYear)(date); } - function ramp(range) { - var n = range.length; - return function(t) { - return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))]; - }; + function tickInterval(interval, start, stop, step) { + if (interval == null) interval = 10; + + // If a desired tick count is specified, pick a reasonable tick interval + // based on the extent of the domain and a rough estimate of tick size. + // Otherwise, assume interval is already a time interval and use it. + if (typeof interval === "number") { + var target = Math.abs(stop - start) / interval, + i = bisector(function(i) { return i[2]; }).right(tickIntervals, target); + if (i === tickIntervals.length) { + step = tickStep(start / durationYear, stop / durationYear, interval); + interval = year$$1; + } else if (i) { + i = tickIntervals[target / tickIntervals[i - 1][2] < tickIntervals[i][2] / target ? i - 1 : i]; + step = i[1]; + interval = i[0]; + } else { + step = tickStep(start, stop, interval); + interval = millisecond$$1; + } + } + + return step == null ? interval : interval.every(step); } - var viridis = ramp(colors("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")); + scale.invert = function(y) { + return new Date(invert(y)); + }; - var magma = ramp(colors("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")); + scale.domain = function(_) { + return arguments.length ? domain(map$3.call(_, number$2)) : domain().map(date$1); + }; - var inferno = ramp(colors("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")); + scale.ticks = function(interval, step) { + var d = domain(), + t0 = d[0], + t1 = d[d.length - 1], + r = t1 < t0, + t; + if (r) t = t0, t0 = t1, t1 = t; + t = tickInterval(interval, t0, t1, step); + t = t ? t.range(t0, t1 + 1) : []; // inclusive stop + return r ? t.reverse() : t; + }; - var plasma = ramp(colors("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")); + scale.tickFormat = function(count, specifier) { + return specifier == null ? tickFormat : format(specifier); + }; - function sequential(interpolator) { - var x0 = 0, - x1 = 1, - clamp = false; + scale.nice = function(interval, step) { + var d = domain(); + return (interval = tickInterval(interval, d[0], d[d.length - 1], step)) + ? domain(nice(d, interval)) + : scale; + }; - function scale(x) { - var t = (x - x0) / (x1 - x0); - return interpolator(clamp ? Math.max(0, Math.min(1, t)) : t); - } + scale.copy = function() { + return copy(scale, calendar(year$$1, month$$1, week, day$$1, hour$$1, minute$$1, second$$1, millisecond$$1, format)); + }; - scale.domain = function(_) { - return arguments.length ? (x0 = +_[0], x1 = +_[1], scale) : [x0, x1]; - }; + return scale; +} - scale.clamp = function(_) { - return arguments.length ? (clamp = !!_, scale) : clamp; - }; +var time = function() { + return calendar(year, month, sunday, day, hour, minute, second, millisecond, exports.timeFormat).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]); +} - scale.interpolator = function(_) { - return arguments.length ? (interpolator = _, scale) : interpolator; - }; +var utcTime = function() { + return calendar(utcYear, utcMonth, utcSunday, utcDay, utcHour, utcMinute, second, millisecond, exports.utcFormat).domain([Date.UTC(2000, 0, 1), Date.UTC(2000, 0, 2)]); +} - scale.copy = function() { - return sequential(interpolator).domain([x0, x1]).clamp(clamp); - }; +var colors = function(s) { + return s.match(/.{6}/g).map(function(x) { + return "#" + x; + }); +} - return linearish(scale); - } +var category10 = colors("1f77b4ff7f0e2ca02cd627289467bd8c564be377c27f7f7fbcbd2217becf"); - var xhtml = "http://www.w3.org/1999/xhtml"; +var category20b = colors("393b795254a36b6ecf9c9ede6379398ca252b5cf6bcedb9c8c6d31bd9e39e7ba52e7cb94843c39ad494ad6616be7969c7b4173a55194ce6dbdde9ed6"); - var namespaces = { - svg: "http://www.w3.org/2000/svg", - xhtml: xhtml, - xlink: "http://www.w3.org/1999/xlink", - xml: "http://www.w3.org/XML/1998/namespace", - xmlns: "http://www.w3.org/2000/xmlns/" +var category20c = colors("3182bd6baed69ecae1c6dbefe6550dfd8d3cfdae6bfdd0a231a35474c476a1d99bc7e9c0756bb19e9ac8bcbddcdadaeb636363969696bdbdbdd9d9d9"); + +var category20 = colors("1f77b4aec7e8ff7f0effbb782ca02c98df8ad62728ff98969467bdc5b0d58c564bc49c94e377c2f7b6d27f7f7fc7c7c7bcbd22dbdb8d17becf9edae5"); + +var cubehelix$3 = cubehelixLong(cubehelix(300, 0.5, 0.0), cubehelix(-240, 0.5, 1.0)); + +var warm = cubehelixLong(cubehelix(-100, 0.75, 0.35), cubehelix(80, 1.50, 0.8)); + +var cool = cubehelixLong(cubehelix(260, 0.75, 0.35), cubehelix(80, 1.50, 0.8)); + +var rainbow = cubehelix(); + +var rainbow$1 = function(t) { + if (t < 0 || t > 1) t -= Math.floor(t); + var ts = Math.abs(t - 0.5); + rainbow.h = 360 * t - 100; + rainbow.s = 1.5 - 1.5 * ts; + rainbow.l = 0.8 - 0.9 * ts; + return rainbow + ""; +} + +function ramp(range) { + var n = range.length; + return function(t) { + return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))]; }; +} - function namespace(name) { - var prefix = name += "", i = prefix.indexOf(":"); - if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1); - return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name; - } +var viridis = ramp(colors("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")); - function creatorInherit(name) { - return function() { - var document = this.ownerDocument, - uri = this.namespaceURI; - return uri === xhtml && document.documentElement.namespaceURI === xhtml - ? document.createElement(name) - : document.createElementNS(uri, name); - }; - } +var magma = ramp(colors("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")); - function creatorFixed(fullname) { - return function() { - return this.ownerDocument.createElementNS(fullname.space, fullname.local); - }; - } +var inferno = ramp(colors("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")); - function creator(name) { - var fullname = namespace(name); - return (fullname.local - ? creatorFixed - : creatorInherit)(fullname); - } +var plasma = ramp(colors("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")); - var nextId = 0; +function sequential(interpolator) { + var x0 = 0, + x1 = 1, + clamp = false; - function local() { - return new Local; + function scale(x) { + var t = (x - x0) / (x1 - x0); + return interpolator(clamp ? Math.max(0, Math.min(1, t)) : t); } - function Local() { - this._ = "@" + (++nextId).toString(36); - } + scale.domain = function(_) { + return arguments.length ? (x0 = +_[0], x1 = +_[1], scale) : [x0, x1]; + }; - Local.prototype = local.prototype = { - constructor: Local, - get: function(node) { - var id = this._; - while (!(id in node)) if (!(node = node.parentNode)) return; - return node[id]; - }, - set: function(node, value) { - return node[this._] = value; - }, - remove: function(node) { - return this._ in node && delete node[this._]; - }, - toString: function() { - return this._; - } + scale.clamp = function(_) { + return arguments.length ? (clamp = !!_, scale) : clamp; }; - var matcher = function(selector) { - return function() { - return this.matches(selector); - }; + scale.interpolator = function(_) { + return arguments.length ? (interpolator = _, scale) : interpolator; }; - if (typeof document !== "undefined") { - var element = document.documentElement; - if (!element.matches) { - var vendorMatches = element.webkitMatchesSelector - || element.msMatchesSelector - || element.mozMatchesSelector - || element.oMatchesSelector; - matcher = function(selector) { - return function() { - return vendorMatches.call(this, selector); - }; - }; - } - } + scale.copy = function() { + return sequential(interpolator).domain([x0, x1]).clamp(clamp); + }; - var matcher$1 = matcher; + return linearish(scale); +} - var filterEvents = {}; +var xhtml = "http://www.w3.org/1999/xhtml"; - exports.event = null; +var namespaces = { + svg: "http://www.w3.org/2000/svg", + xhtml: xhtml, + xlink: "http://www.w3.org/1999/xlink", + xml: "http://www.w3.org/XML/1998/namespace", + xmlns: "http://www.w3.org/2000/xmlns/" +}; - if (typeof document !== "undefined") { - var element$1 = document.documentElement; - if (!("onmouseenter" in element$1)) { - filterEvents = {mouseenter: "mouseover", mouseleave: "mouseout"}; - } - } +var namespace = function(name) { + var prefix = name += "", i = prefix.indexOf(":"); + if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1); + return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name; +} - function filterContextListener(listener, index, group) { - listener = contextListener(listener, index, group); - return function(event) { - var related = event.relatedTarget; - if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) { - listener.call(this, event); - } - }; - } +function creatorInherit(name) { + return function() { + var document = this.ownerDocument, + uri = this.namespaceURI; + return uri === xhtml && document.documentElement.namespaceURI === xhtml + ? document.createElement(name) + : document.createElementNS(uri, name); + }; +} - function contextListener(listener, index, group) { - return function(event1) { - var event0 = exports.event; // Events can be reentrant (e.g., focus). - exports.event = event1; - try { - listener.call(this, this.__data__, index, group); - } finally { - exports.event = event0; - } - }; - } +function creatorFixed(fullname) { + return function() { + return this.ownerDocument.createElementNS(fullname.space, fullname.local); + }; +} - function parseTypenames$1(typenames) { - return typenames.trim().split(/^|\s+/).map(function(t) { - var name = "", i = t.indexOf("."); - if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i); - return {type: t, name: name}; - }); - } +var creator = function(name) { + var fullname = namespace(name); + return (fullname.local + ? creatorFixed + : creatorInherit)(fullname); +} - function onRemove(typename) { - return function() { - var on = this.__on; - if (!on) return; - for (var j = 0, i = -1, m = on.length, o; j < m; ++j) { - if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) { - this.removeEventListener(o.type, o.listener, o.capture); - } else { - on[++i] = o; - } - } - if (++i) on.length = i; - else delete this.__on; - }; +var nextId = 0; + +function local() { + return new Local; +} + +function Local() { + this._ = "@" + (++nextId).toString(36); +} + +Local.prototype = local.prototype = { + constructor: Local, + get: function(node) { + var id = this._; + while (!(id in node)) if (!(node = node.parentNode)) return; + return node[id]; + }, + set: function(node, value) { + return node[this._] = value; + }, + remove: function(node) { + return this._ in node && delete node[this._]; + }, + toString: function() { + return this._; } +}; - function onAdd(typename, value, capture) { - var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener; - return function(d, i, group) { - var on = this.__on, o, listener = wrap(value, i, group); - if (on) for (var j = 0, m = on.length; j < m; ++j) { - if ((o = on[j]).type === typename.type && o.name === typename.name) { - this.removeEventListener(o.type, o.listener, o.capture); - this.addEventListener(o.type, o.listener = listener, o.capture = capture); - o.value = value; - return; - } - } - this.addEventListener(typename.type, listener, capture); - o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture}; - if (!on) this.__on = [o]; - else on.push(o); +var matcher = function(selector) { + return function() { + return this.matches(selector); + }; +}; + +if (typeof document !== "undefined") { + var element = document.documentElement; + if (!element.matches) { + var vendorMatches = element.webkitMatchesSelector + || element.msMatchesSelector + || element.mozMatchesSelector + || element.oMatchesSelector; + matcher = function(selector) { + return function() { + return vendorMatches.call(this, selector); + }; }; } +} - function selection_on(typename, value, capture) { - var typenames = parseTypenames$1(typename + ""), i, n = typenames.length, t; +var matcher$1 = matcher; - if (arguments.length < 2) { - var on = this.node().__on; - if (on) for (var j = 0, m = on.length, o; j < m; ++j) { - for (i = 0, o = on[j]; i < n; ++i) { - if ((t = typenames[i]).type === o.type && t.name === o.name) { - return o.value; - } - } - } - return; - } +var filterEvents = {}; - on = value ? onAdd : onRemove; - if (capture == null) capture = false; - for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture)); - return this; +exports.event = null; + +if (typeof document !== "undefined") { + var element$1 = document.documentElement; + if (!("onmouseenter" in element$1)) { + filterEvents = {mouseenter: "mouseover", mouseleave: "mouseout"}; } +} - function customEvent(event1, listener, that, args) { - var event0 = exports.event; - event1.sourceEvent = exports.event; +function filterContextListener(listener, index, group) { + listener = contextListener(listener, index, group); + return function(event) { + var related = event.relatedTarget; + if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) { + listener.call(this, event); + } + }; +} + +function contextListener(listener, index, group) { + return function(event1) { + var event0 = exports.event; // Events can be reentrant (e.g., focus). exports.event = event1; try { - return listener.apply(that, args); + listener.call(this, this.__data__, index, group); } finally { exports.event = event0; } - } + }; +} - function sourceEvent() { - var current = exports.event, source; - while (source = current.sourceEvent) current = source; - return current; - } +function parseTypenames$1(typenames) { + return typenames.trim().split(/^|\s+/).map(function(t) { + var name = "", i = t.indexOf("."); + if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i); + return {type: t, name: name}; + }); +} - function point$5(node, event) { - var svg = node.ownerSVGElement || node; +function onRemove(typename) { + return function() { + var on = this.__on; + if (!on) return; + for (var j = 0, i = -1, m = on.length, o; j < m; ++j) { + if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) { + this.removeEventListener(o.type, o.listener, o.capture); + } else { + on[++i] = o; + } + } + if (++i) on.length = i; + else delete this.__on; + }; +} - if (svg.createSVGPoint) { - var point = svg.createSVGPoint(); - point.x = event.clientX, point.y = event.clientY; - point = point.matrixTransform(node.getScreenCTM().inverse()); - return [point.x, point.y]; +function onAdd(typename, value, capture) { + var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener; + return function(d, i, group) { + var on = this.__on, o, listener = wrap(value, i, group); + if (on) for (var j = 0, m = on.length; j < m; ++j) { + if ((o = on[j]).type === typename.type && o.name === typename.name) { + this.removeEventListener(o.type, o.listener, o.capture); + this.addEventListener(o.type, o.listener = listener, o.capture = capture); + o.value = value; + return; + } } + this.addEventListener(typename.type, listener, capture); + o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture}; + if (!on) this.__on = [o]; + else on.push(o); + }; +} - var rect = node.getBoundingClientRect(); - return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop]; +var selection_on = function(typename, value, capture) { + var typenames = parseTypenames$1(typename + ""), i, n = typenames.length, t; + + if (arguments.length < 2) { + var on = this.node().__on; + if (on) for (var j = 0, m = on.length, o; j < m; ++j) { + for (i = 0, o = on[j]; i < n; ++i) { + if ((t = typenames[i]).type === o.type && t.name === o.name) { + return o.value; + } + } + } + return; } - function mouse(node) { - var event = sourceEvent(); - if (event.changedTouches) event = event.changedTouches[0]; - return point$5(node, event); + on = value ? onAdd : onRemove; + if (capture == null) capture = false; + for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture)); + return this; +} + +function customEvent(event1, listener, that, args) { + var event0 = exports.event; + event1.sourceEvent = exports.event; + exports.event = event1; + try { + return listener.apply(that, args); + } finally { + exports.event = event0; } +} - function none$2() {} +var sourceEvent = function() { + var current = exports.event, source; + while (source = current.sourceEvent) current = source; + return current; +} - function selector(selector) { - return selector == null ? none$2 : function() { - return this.querySelector(selector); - }; +var point$5 = function(node, event) { + var svg = node.ownerSVGElement || node; + + if (svg.createSVGPoint) { + var point = svg.createSVGPoint(); + point.x = event.clientX, point.y = event.clientY; + point = point.matrixTransform(node.getScreenCTM().inverse()); + return [point.x, point.y]; } - function selection_select(select) { - if (typeof select !== "function") select = selector(select); + var rect = node.getBoundingClientRect(); + return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop]; +} - for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) { - if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) { - if ("__data__" in node) subnode.__data__ = node.__data__; - subgroup[i] = subnode; - } +var mouse = function(node) { + var event = sourceEvent(); + if (event.changedTouches) event = event.changedTouches[0]; + return point$5(node, event); +} + +function none$2() {} + +var selector = function(selector) { + return selector == null ? none$2 : function() { + return this.querySelector(selector); + }; +} + +var selection_select = function(select) { + if (typeof select !== "function") select = selector(select); + + for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) { + if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) { + if ("__data__" in node) subnode.__data__ = node.__data__; + subgroup[i] = subnode; } } - - return new Selection(subgroups, this._parents); } - function empty() { - return []; - } + return new Selection(subgroups, this._parents); +} - function selectorAll(selector) { - return selector == null ? empty : function() { - return this.querySelectorAll(selector); - }; - } +function empty() { + return []; +} - function selection_selectAll(select) { - if (typeof select !== "function") select = selectorAll(select); +var selectorAll = function(selector) { + return selector == null ? empty : function() { + return this.querySelectorAll(selector); + }; +} - for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { - if (node = group[i]) { - subgroups.push(select.call(node, node.__data__, i, group)); - parents.push(node); - } +var selection_selectAll = function(select) { + if (typeof select !== "function") select = selectorAll(select); + + for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { + if (node = group[i]) { + subgroups.push(select.call(node, node.__data__, i, group)); + parents.push(node); } } - - return new Selection(subgroups, parents); } - function selection_filter(match) { - if (typeof match !== "function") match = matcher$1(match); + return new Selection(subgroups, parents); +} - for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) { - if ((node = group[i]) && match.call(node, node.__data__, i, group)) { - subgroup.push(node); - } +var selection_filter = function(match) { + if (typeof match !== "function") match = matcher$1(match); + + for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) { + if ((node = group[i]) && match.call(node, node.__data__, i, group)) { + subgroup.push(node); } } - - return new Selection(subgroups, this._parents); } - function sparse(update) { - return new Array(update.length); - } + return new Selection(subgroups, this._parents); +} - function selection_enter() { - return new Selection(this._enter || this._groups.map(sparse), this._parents); - } +var sparse = function(update) { + return new Array(update.length); +} - function EnterNode(parent, datum) { - this.ownerDocument = parent.ownerDocument; - this.namespaceURI = parent.namespaceURI; - this._next = null; - this._parent = parent; - this.__data__ = datum; - } +var selection_enter = function() { + return new Selection(this._enter || this._groups.map(sparse), this._parents); +} - EnterNode.prototype = { - constructor: EnterNode, - appendChild: function(child) { return this._parent.insertBefore(child, this._next); }, - insertBefore: function(child, next) { return this._parent.insertBefore(child, next); }, - querySelector: function(selector) { return this._parent.querySelector(selector); }, - querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); } - }; +function EnterNode(parent, datum) { + this.ownerDocument = parent.ownerDocument; + this.namespaceURI = parent.namespaceURI; + this._next = null; + this._parent = parent; + this.__data__ = datum; +} - function constant$4(x) { - return function() { - return x; - }; - } +EnterNode.prototype = { + constructor: EnterNode, + appendChild: function(child) { return this._parent.insertBefore(child, this._next); }, + insertBefore: function(child, next) { return this._parent.insertBefore(child, next); }, + querySelector: function(selector) { return this._parent.querySelector(selector); }, + querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); } +}; - var keyPrefix = "$"; // Protect against keys like “__proto__”. +var constant$5 = function(x) { + return function() { + return x; + }; +} - function bindIndex(parent, group, enter, update, exit, data) { - var i = 0, - node, - groupLength = group.length, - dataLength = data.length; +var keyPrefix = "$"; // Protect against keys like “__proto__”. - // Put any non-null nodes that fit into update. - // Put any null nodes into enter. - // Put any remaining data into enter. - for (; i < dataLength; ++i) { - if (node = group[i]) { - node.__data__ = data[i]; - update[i] = node; - } else { - enter[i] = new EnterNode(parent, data[i]); - } - } +function bindIndex(parent, group, enter, update, exit, data) { + var i = 0, + node, + groupLength = group.length, + dataLength = data.length; - // Put any non-null nodes that don’t fit into exit. - for (; i < groupLength; ++i) { - if (node = group[i]) { - exit[i] = node; - } + // Put any non-null nodes that fit into update. + // Put any null nodes into enter. + // Put any remaining data into enter. + for (; i < dataLength; ++i) { + if (node = group[i]) { + node.__data__ = data[i]; + update[i] = node; + } else { + enter[i] = new EnterNode(parent, data[i]); } } - function bindKey(parent, group, enter, update, exit, data, key) { - var i, - node, - nodeByKeyValue = {}, - groupLength = group.length, - dataLength = data.length, - keyValues = new Array(groupLength), - keyValue; - - // Compute the key for each node. - // If multiple nodes have the same key, the duplicates are added to exit. - for (i = 0; i < groupLength; ++i) { - if (node = group[i]) { - keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group); - if (keyValue in nodeByKeyValue) { - exit[i] = node; - } else { - nodeByKeyValue[keyValue] = node; - } - } + // Put any non-null nodes that don’t fit into exit. + for (; i < groupLength; ++i) { + if (node = group[i]) { + exit[i] = node; } + } +} - // Compute the key for each datum. - // If there a node associated with this key, join and add it to update. - // If there is not (or the key is a duplicate), add it to enter. - for (i = 0; i < dataLength; ++i) { - keyValue = keyPrefix + key.call(parent, data[i], i, data); - if (node = nodeByKeyValue[keyValue]) { - update[i] = node; - node.__data__ = data[i]; - nodeByKeyValue[keyValue] = null; +function bindKey(parent, group, enter, update, exit, data, key) { + var i, + node, + nodeByKeyValue = {}, + groupLength = group.length, + dataLength = data.length, + keyValues = new Array(groupLength), + keyValue; + + // Compute the key for each node. + // If multiple nodes have the same key, the duplicates are added to exit. + for (i = 0; i < groupLength; ++i) { + if (node = group[i]) { + keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group); + if (keyValue in nodeByKeyValue) { + exit[i] = node; } else { - enter[i] = new EnterNode(parent, data[i]); + nodeByKeyValue[keyValue] = node; } } + } - // Add any remaining nodes that were not bound to data to exit. - for (i = 0; i < groupLength; ++i) { - if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) { - exit[i] = node; - } + // Compute the key for each datum. + // If there a node associated with this key, join and add it to update. + // If there is not (or the key is a duplicate), add it to enter. + for (i = 0; i < dataLength; ++i) { + keyValue = keyPrefix + key.call(parent, data[i], i, data); + if (node = nodeByKeyValue[keyValue]) { + update[i] = node; + node.__data__ = data[i]; + nodeByKeyValue[keyValue] = null; + } else { + enter[i] = new EnterNode(parent, data[i]); } } - function selection_data(value, key) { - if (!value) { - data = new Array(this.size()), j = -1; - this.each(function(d) { data[++j] = d; }); - return data; + // Add any remaining nodes that were not bound to data to exit. + for (i = 0; i < groupLength; ++i) { + if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) { + exit[i] = node; } + } +} - var bind = key ? bindKey : bindIndex, - parents = this._parents, - groups = this._groups; +var selection_data = function(value, key) { + if (!value) { + data = new Array(this.size()), j = -1; + this.each(function(d) { data[++j] = d; }); + return data; + } - if (typeof value !== "function") value = constant$4(value); + var bind = key ? bindKey : bindIndex, + parents = this._parents, + groups = this._groups; - for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) { - var parent = parents[j], - group = groups[j], - groupLength = group.length, - data = value.call(parent, parent && parent.__data__, j, parents), - dataLength = data.length, - enterGroup = enter[j] = new Array(dataLength), - updateGroup = update[j] = new Array(dataLength), - exitGroup = exit[j] = new Array(groupLength); + if (typeof value !== "function") value = constant$5(value); - bind(parent, group, enterGroup, updateGroup, exitGroup, data, key); + for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) { + var parent = parents[j], + group = groups[j], + groupLength = group.length, + data = value.call(parent, parent && parent.__data__, j, parents), + dataLength = data.length, + enterGroup = enter[j] = new Array(dataLength), + updateGroup = update[j] = new Array(dataLength), + exitGroup = exit[j] = new Array(groupLength); - // Now connect the enter nodes to their following update node, such that - // appendChild can insert the materialized enter node before this node, - // rather than at the end of the parent node. - for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) { - if (previous = enterGroup[i0]) { - if (i0 >= i1) i1 = i0 + 1; - while (!(next = updateGroup[i1]) && ++i1 < dataLength); - previous._next = next || null; - } + bind(parent, group, enterGroup, updateGroup, exitGroup, data, key); + + // Now connect the enter nodes to their following update node, such that + // appendChild can insert the materialized enter node before this node, + // rather than at the end of the parent node. + for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) { + if (previous = enterGroup[i0]) { + if (i0 >= i1) i1 = i0 + 1; + while (!(next = updateGroup[i1]) && ++i1 < dataLength); + previous._next = next || null; } } - - update = new Selection(update, parents); - update._enter = enter; - update._exit = exit; - return update; } - function selection_exit() { - return new Selection(this._exit || this._groups.map(sparse), this._parents); - } + update = new Selection(update, parents); + update._enter = enter; + update._exit = exit; + return update; +} - function selection_merge(selection) { +var selection_exit = function() { + return new Selection(this._exit || this._groups.map(sparse), this._parents); +} - for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) { - for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) { - if (node = group0[i] || group1[i]) { - merge[i] = node; - } +var selection_merge = function(selection) { + + for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) { + for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) { + if (node = group0[i] || group1[i]) { + merge[i] = node; } } - - for (; j < m0; ++j) { - merges[j] = groups0[j]; - } - - return new Selection(merges, this._parents); } - function selection_order() { - - for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) { - for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) { - if (node = group[i]) { - if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next); - next = node; - } - } - } - - return this; + for (; j < m0; ++j) { + merges[j] = groups0[j]; } - function selection_sort(compare) { - if (!compare) compare = ascending$2; + return new Selection(merges, this._parents); +} - function compareNode(a, b) { - return a && b ? compare(a.__data__, b.__data__) : !a - !b; - } +var selection_order = function() { - for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) { - if (node = group[i]) { - sortgroup[i] = node; - } + for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) { + for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) { + if (node = group[i]) { + if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next); + next = node; } - sortgroup.sort(compareNode); } - - return new Selection(sortgroups, this._parents).order(); } - function ascending$2(a, b) { - return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; - } + return this; +} - function selection_call() { - var callback = arguments[0]; - arguments[0] = this; - callback.apply(null, arguments); - return this; - } +var selection_sort = function(compare) { + if (!compare) compare = ascending$2; - function selection_nodes() { - var nodes = new Array(this.size()), i = -1; - this.each(function() { nodes[++i] = this; }); - return nodes; + function compareNode(a, b) { + return a && b ? compare(a.__data__, b.__data__) : !a - !b; } - function selection_node() { - - for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) { - for (var group = groups[j], i = 0, n = group.length; i < n; ++i) { - var node = group[i]; - if (node) return node; + for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) { + if (node = group[i]) { + sortgroup[i] = node; } } - - return null; + sortgroup.sort(compareNode); } - function selection_size() { - var size = 0; - this.each(function() { ++size; }); - return size; - } + return new Selection(sortgroups, this._parents).order(); +} - function selection_empty() { - return !this.node(); - } +function ascending$2(a, b) { + return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; +} - function selection_each(callback) { +var selection_call = function() { + var callback = arguments[0]; + arguments[0] = this; + callback.apply(null, arguments); + return this; +} - for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) { - for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) { - if (node = group[i]) callback.call(node, node.__data__, i, group); - } - } +var selection_nodes = function() { + var nodes = new Array(this.size()), i = -1; + this.each(function() { nodes[++i] = this; }); + return nodes; +} - return this; - } +var selection_node = function() { - function attrRemove(name) { - return function() { - this.removeAttribute(name); - }; + for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) { + for (var group = groups[j], i = 0, n = group.length; i < n; ++i) { + var node = group[i]; + if (node) return node; + } } - function attrRemoveNS(fullname) { - return function() { - this.removeAttributeNS(fullname.space, fullname.local); - }; - } + return null; +} - function attrConstant(name, value) { - return function() { - this.setAttribute(name, value); - }; - } +var selection_size = function() { + var size = 0; + this.each(function() { ++size; }); + return size; +} - function attrConstantNS(fullname, value) { - return function() { - this.setAttributeNS(fullname.space, fullname.local, value); - }; - } +var selection_empty = function() { + return !this.node(); +} - function attrFunction(name, value) { - return function() { - var v = value.apply(this, arguments); - if (v == null) this.removeAttribute(name); - else this.setAttribute(name, v); - }; - } +var selection_each = function(callback) { - function attrFunctionNS(fullname, value) { - return function() { - var v = value.apply(this, arguments); - if (v == null) this.removeAttributeNS(fullname.space, fullname.local); - else this.setAttributeNS(fullname.space, fullname.local, v); - }; + for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) { + for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) { + if (node = group[i]) callback.call(node, node.__data__, i, group); + } } - function selection_attr(name, value) { - var fullname = namespace(name); + return this; +} - if (arguments.length < 2) { - var node = this.node(); - return fullname.local - ? node.getAttributeNS(fullname.space, fullname.local) - : node.getAttribute(fullname); - } +function attrRemove(name) { + return function() { + this.removeAttribute(name); + }; +} - return this.each((value == null - ? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === "function" - ? (fullname.local ? attrFunctionNS : attrFunction) - : (fullname.local ? attrConstantNS : attrConstant)))(fullname, value)); - } +function attrRemoveNS(fullname) { + return function() { + this.removeAttributeNS(fullname.space, fullname.local); + }; +} - function window(node) { - return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node - || (node.document && node) // node is a Window - || node.defaultView; // node is a Document - } +function attrConstant(name, value) { + return function() { + this.setAttribute(name, value); + }; +} - function styleRemove(name) { - return function() { - this.style.removeProperty(name); - }; - } +function attrConstantNS(fullname, value) { + return function() { + this.setAttributeNS(fullname.space, fullname.local, value); + }; +} - function styleConstant(name, value, priority) { - return function() { - this.style.setProperty(name, value, priority); - }; - } +function attrFunction(name, value) { + return function() { + var v = value.apply(this, arguments); + if (v == null) this.removeAttribute(name); + else this.setAttribute(name, v); + }; +} - function styleFunction(name, value, priority) { - return function() { - var v = value.apply(this, arguments); - if (v == null) this.style.removeProperty(name); - else this.style.setProperty(name, v, priority); - }; - } +function attrFunctionNS(fullname, value) { + return function() { + var v = value.apply(this, arguments); + if (v == null) this.removeAttributeNS(fullname.space, fullname.local); + else this.setAttributeNS(fullname.space, fullname.local, v); + }; +} - function selection_style(name, value, priority) { - var node; - return arguments.length > 1 - ? this.each((value == null - ? styleRemove : typeof value === "function" - ? styleFunction - : styleConstant)(name, value, priority == null ? "" : priority)) - : window(node = this.node()) - .getComputedStyle(node, null) - .getPropertyValue(name); - } +var selection_attr = function(name, value) { + var fullname = namespace(name); - function propertyRemove(name) { - return function() { - delete this[name]; - }; + if (arguments.length < 2) { + var node = this.node(); + return fullname.local + ? node.getAttributeNS(fullname.space, fullname.local) + : node.getAttribute(fullname); } - function propertyConstant(name, value) { - return function() { - this[name] = value; - }; - } + return this.each((value == null + ? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === "function" + ? (fullname.local ? attrFunctionNS : attrFunction) + : (fullname.local ? attrConstantNS : attrConstant)))(fullname, value)); +} - function propertyFunction(name, value) { - return function() { - var v = value.apply(this, arguments); - if (v == null) delete this[name]; - else this[name] = v; - }; - } +var window = function(node) { + return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node + || (node.document && node) // node is a Window + || node.defaultView; // node is a Document +} - function selection_property(name, value) { - return arguments.length > 1 - ? this.each((value == null - ? propertyRemove : typeof value === "function" - ? propertyFunction - : propertyConstant)(name, value)) - : this.node()[name]; - } +function styleRemove(name) { + return function() { + this.style.removeProperty(name); + }; +} - function classArray(string) { - return string.trim().split(/^|\s+/); - } +function styleConstant(name, value, priority) { + return function() { + this.style.setProperty(name, value, priority); + }; +} - function classList(node) { - return node.classList || new ClassList(node); - } +function styleFunction(name, value, priority) { + return function() { + var v = value.apply(this, arguments); + if (v == null) this.style.removeProperty(name); + else this.style.setProperty(name, v, priority); + }; +} - function ClassList(node) { - this._node = node; - this._names = classArray(node.getAttribute("class") || ""); - } +var selection_style = function(name, value, priority) { + var node; + return arguments.length > 1 + ? this.each((value == null + ? styleRemove : typeof value === "function" + ? styleFunction + : styleConstant)(name, value, priority == null ? "" : priority)) + : window(node = this.node()) + .getComputedStyle(node, null) + .getPropertyValue(name); +} - ClassList.prototype = { - add: function(name) { - var i = this._names.indexOf(name); - if (i < 0) { - this._names.push(name); - this._node.setAttribute("class", this._names.join(" ")); - } - }, - remove: function(name) { - var i = this._names.indexOf(name); - if (i >= 0) { - this._names.splice(i, 1); - this._node.setAttribute("class", this._names.join(" ")); - } - }, - contains: function(name) { - return this._names.indexOf(name) >= 0; - } +function propertyRemove(name) { + return function() { + delete this[name]; }; +} - function classedAdd(node, names) { - var list = classList(node), i = -1, n = names.length; - while (++i < n) list.add(names[i]); - } +function propertyConstant(name, value) { + return function() { + this[name] = value; + }; +} - function classedRemove(node, names) { - var list = classList(node), i = -1, n = names.length; - while (++i < n) list.remove(names[i]); - } +function propertyFunction(name, value) { + return function() { + var v = value.apply(this, arguments); + if (v == null) delete this[name]; + else this[name] = v; + }; +} - function classedTrue(names) { - return function() { - classedAdd(this, names); - }; - } +var selection_property = function(name, value) { + return arguments.length > 1 + ? this.each((value == null + ? propertyRemove : typeof value === "function" + ? propertyFunction + : propertyConstant)(name, value)) + : this.node()[name]; +} - function classedFalse(names) { - return function() { - classedRemove(this, names); - }; - } +function classArray(string) { + return string.trim().split(/^|\s+/); +} - function classedFunction(names, value) { - return function() { - (value.apply(this, arguments) ? classedAdd : classedRemove)(this, names); - }; - } +function classList(node) { + return node.classList || new ClassList(node); +} - function selection_classed(name, value) { - var names = classArray(name + ""); +function ClassList(node) { + this._node = node; + this._names = classArray(node.getAttribute("class") || ""); +} - if (arguments.length < 2) { - var list = classList(this.node()), i = -1, n = names.length; - while (++i < n) if (!list.contains(names[i])) return false; - return true; +ClassList.prototype = { + add: function(name) { + var i = this._names.indexOf(name); + if (i < 0) { + this._names.push(name); + this._node.setAttribute("class", this._names.join(" ")); } - - return this.each((typeof value === "function" - ? classedFunction : value - ? classedTrue - : classedFalse)(names, value)); + }, + remove: function(name) { + var i = this._names.indexOf(name); + if (i >= 0) { + this._names.splice(i, 1); + this._node.setAttribute("class", this._names.join(" ")); + } + }, + contains: function(name) { + return this._names.indexOf(name) >= 0; } +}; - function textRemove() { - this.textContent = ""; - } +function classedAdd(node, names) { + var list = classList(node), i = -1, n = names.length; + while (++i < n) list.add(names[i]); +} - function textConstant(value) { - return function() { - this.textContent = value; - }; - } +function classedRemove(node, names) { + var list = classList(node), i = -1, n = names.length; + while (++i < n) list.remove(names[i]); +} - function textFunction(value) { - return function() { - var v = value.apply(this, arguments); - this.textContent = v == null ? "" : v; - }; - } +function classedTrue(names) { + return function() { + classedAdd(this, names); + }; +} - function selection_text(value) { - return arguments.length - ? this.each(value == null - ? textRemove : (typeof value === "function" - ? textFunction - : textConstant)(value)) - : this.node().textContent; - } +function classedFalse(names) { + return function() { + classedRemove(this, names); + }; +} - function htmlRemove() { - this.innerHTML = ""; - } +function classedFunction(names, value) { + return function() { + (value.apply(this, arguments) ? classedAdd : classedRemove)(this, names); + }; +} - function htmlConstant(value) { - return function() { - this.innerHTML = value; - }; - } +var selection_classed = function(name, value) { + var names = classArray(name + ""); - function htmlFunction(value) { - return function() { - var v = value.apply(this, arguments); - this.innerHTML = v == null ? "" : v; - }; + if (arguments.length < 2) { + var list = classList(this.node()), i = -1, n = names.length; + while (++i < n) if (!list.contains(names[i])) return false; + return true; } - function selection_html(value) { - return arguments.length - ? this.each(value == null - ? htmlRemove : (typeof value === "function" - ? htmlFunction - : htmlConstant)(value)) - : this.node().innerHTML; - } + return this.each((typeof value === "function" + ? classedFunction : value + ? classedTrue + : classedFalse)(names, value)); +} - function raise$1() { - if (this.nextSibling) this.parentNode.appendChild(this); - } +function textRemove() { + this.textContent = ""; +} - function selection_raise() { - return this.each(raise$1); - } +function textConstant(value) { + return function() { + this.textContent = value; + }; +} - function lower() { - if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild); - } +function textFunction(value) { + return function() { + var v = value.apply(this, arguments); + this.textContent = v == null ? "" : v; + }; +} - function selection_lower() { - return this.each(lower); - } +var selection_text = function(value) { + return arguments.length + ? this.each(value == null + ? textRemove : (typeof value === "function" + ? textFunction + : textConstant)(value)) + : this.node().textContent; +} - function selection_append(name) { - var create = typeof name === "function" ? name : creator(name); - return this.select(function() { - return this.appendChild(create.apply(this, arguments)); - }); - } +function htmlRemove() { + this.innerHTML = ""; +} - function constantNull() { - return null; - } +function htmlConstant(value) { + return function() { + this.innerHTML = value; + }; +} - function selection_insert(name, before) { - var create = typeof name === "function" ? name : creator(name), - select = before == null ? constantNull : typeof before === "function" ? before : selector(before); - return this.select(function() { - return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null); - }); - } +function htmlFunction(value) { + return function() { + var v = value.apply(this, arguments); + this.innerHTML = v == null ? "" : v; + }; +} - function remove() { - var parent = this.parentNode; - if (parent) parent.removeChild(this); - } +var selection_html = function(value) { + return arguments.length + ? this.each(value == null + ? htmlRemove : (typeof value === "function" + ? htmlFunction + : htmlConstant)(value)) + : this.node().innerHTML; +} - function selection_remove() { - return this.each(remove); - } +function raise$1() { + if (this.nextSibling) this.parentNode.appendChild(this); +} - function selection_datum(value) { - return arguments.length - ? this.property("__data__", value) - : this.node().__data__; - } +var selection_raise = function() { + return this.each(raise$1); +} - function dispatchEvent(node, type, params) { - var window$$ = window(node), - event = window$$.CustomEvent; +function lower() { + if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild); +} - if (event) { - event = new event(type, params); - } else { - event = window$$.document.createEvent("Event"); - if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail; - else event.initEvent(type, false, false); - } +var selection_lower = function() { + return this.each(lower); +} - node.dispatchEvent(event); - } +var selection_append = function(name) { + var create = typeof name === "function" ? name : creator(name); + return this.select(function() { + return this.appendChild(create.apply(this, arguments)); + }); +} - function dispatchConstant(type, params) { - return function() { - return dispatchEvent(this, type, params); - }; - } +function constantNull() { + return null; +} - function dispatchFunction(type, params) { - return function() { - return dispatchEvent(this, type, params.apply(this, arguments)); - }; - } +var selection_insert = function(name, before) { + var create = typeof name === "function" ? name : creator(name), + select = before == null ? constantNull : typeof before === "function" ? before : selector(before); + return this.select(function() { + return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null); + }); +} - function selection_dispatch(type, params) { - return this.each((typeof params === "function" - ? dispatchFunction - : dispatchConstant)(type, params)); - } +function remove() { + var parent = this.parentNode; + if (parent) parent.removeChild(this); +} - var root = [null]; +var selection_remove = function() { + return this.each(remove); +} - function Selection(groups, parents) { - this._groups = groups; - this._parents = parents; - } +var selection_datum = function(value) { + return arguments.length + ? this.property("__data__", value) + : this.node().__data__; +} - function selection() { - return new Selection([[document.documentElement]], root); +function dispatchEvent(node, type, params) { + var window$$1 = window(node), + event = window$$1.CustomEvent; + + if (event) { + event = new event(type, params); + } else { + event = window$$1.document.createEvent("Event"); + if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail; + else event.initEvent(type, false, false); } - Selection.prototype = selection.prototype = { - constructor: Selection, - select: selection_select, - selectAll: selection_selectAll, - filter: selection_filter, - data: selection_data, - enter: selection_enter, - exit: selection_exit, - merge: selection_merge, - order: selection_order, - sort: selection_sort, - call: selection_call, - nodes: selection_nodes, - node: selection_node, - size: selection_size, - empty: selection_empty, - each: selection_each, - attr: selection_attr, - style: selection_style, - property: selection_property, - classed: selection_classed, - text: selection_text, - html: selection_html, - raise: selection_raise, - lower: selection_lower, - append: selection_append, - insert: selection_insert, - remove: selection_remove, - datum: selection_datum, - on: selection_on, - dispatch: selection_dispatch + node.dispatchEvent(event); +} + +function dispatchConstant(type, params) { + return function() { + return dispatchEvent(this, type, params); }; +} - function select(selector) { - return typeof selector === "string" - ? new Selection([[document.querySelector(selector)]], [document.documentElement]) - : new Selection([[selector]], root); - } +function dispatchFunction(type, params) { + return function() { + return dispatchEvent(this, type, params.apply(this, arguments)); + }; +} - function selectAll(selector) { - return typeof selector === "string" - ? new Selection([document.querySelectorAll(selector)], [document.documentElement]) - : new Selection([selector == null ? [] : selector], root); - } +var selection_dispatch = function(type, params) { + return this.each((typeof params === "function" + ? dispatchFunction + : dispatchConstant)(type, params)); +} - function touch(node, touches, identifier) { - if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches; +var root = [null]; - for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) { - if ((touch = touches[i]).identifier === identifier) { - return point$5(node, touch); - } - } +function Selection(groups, parents) { + this._groups = groups; + this._parents = parents; +} - return null; - } +function selection() { + return new Selection([[document.documentElement]], root); +} - function touches(node, touches) { - if (touches == null) touches = sourceEvent().touches; +Selection.prototype = selection.prototype = { + constructor: Selection, + select: selection_select, + selectAll: selection_selectAll, + filter: selection_filter, + data: selection_data, + enter: selection_enter, + exit: selection_exit, + merge: selection_merge, + order: selection_order, + sort: selection_sort, + call: selection_call, + nodes: selection_nodes, + node: selection_node, + size: selection_size, + empty: selection_empty, + each: selection_each, + attr: selection_attr, + style: selection_style, + property: selection_property, + classed: selection_classed, + text: selection_text, + html: selection_html, + raise: selection_raise, + lower: selection_lower, + append: selection_append, + insert: selection_insert, + remove: selection_remove, + datum: selection_datum, + on: selection_on, + dispatch: selection_dispatch +}; - for (var i = 0, n = touches ? touches.length : 0, points = new Array(n); i < n; ++i) { - points[i] = point$5(node, touches[i]); - } +var select = function(selector) { + return typeof selector === "string" + ? new Selection([[document.querySelector(selector)]], [document.documentElement]) + : new Selection([[selector]], root); +} - return points; +var selectAll = function(selector) { + return typeof selector === "string" + ? new Selection([document.querySelectorAll(selector)], [document.documentElement]) + : new Selection([selector == null ? [] : selector], root); +} + +var touch = function(node, touches, identifier) { + if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches; + + for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) { + if ((touch = touches[i]).identifier === identifier) { + return point$5(node, touch); + } } - var emptyOn = dispatch("start", "end", "interrupt"); - var emptyTween = []; + return null; +} - var CREATED = 0; - var SCHEDULED = 1; - var STARTING = 2; - var STARTED = 3; - var ENDING = 4; - var ENDED = 5; +var touches = function(node, touches) { + if (touches == null) touches = sourceEvent().touches; - function schedule(node, name, id, index, group, timing) { - var schedules = node.__transition; - if (!schedules) node.__transition = {}; - else if (id in schedules) return; - create(node, id, { - name: name, - index: index, // For context during callback. - group: group, // For context during callback. - on: emptyOn, - tween: emptyTween, - time: timing.time, - delay: timing.delay, - duration: timing.duration, - ease: timing.ease, - timer: null, - state: CREATED - }); + for (var i = 0, n = touches ? touches.length : 0, points = new Array(n); i < n; ++i) { + points[i] = point$5(node, touches[i]); } - function init(node, id) { - var schedule = node.__transition; - if (!schedule || !(schedule = schedule[id]) || schedule.state > CREATED) throw new Error("too late"); - return schedule; - } + return points; +} - function set$2(node, id) { - var schedule = node.__transition; - if (!schedule || !(schedule = schedule[id]) || schedule.state > STARTING) throw new Error("too late"); - return schedule; - } +var emptyOn = dispatch("start", "end", "interrupt"); +var emptyTween = []; - function get$1(node, id) { - var schedule = node.__transition; - if (!schedule || !(schedule = schedule[id])) throw new Error("too late"); - return schedule; - } +var CREATED = 0; +var SCHEDULED = 1; +var STARTING = 2; +var STARTED = 3; +var RUNNING = 4; +var ENDING = 5; +var ENDED = 6; - function create(node, id, self) { - var schedules = node.__transition, - tween; +var schedule = function(node, name, id, index, group, timing) { + var schedules = node.__transition; + if (!schedules) node.__transition = {}; + else if (id in schedules) return; + create(node, id, { + name: name, + index: index, // For context during callback. + group: group, // For context during callback. + on: emptyOn, + tween: emptyTween, + time: timing.time, + delay: timing.delay, + duration: timing.duration, + ease: timing.ease, + timer: null, + state: CREATED + }); +} - // Initialize the self timer when the transition is created. - // Note the actual delay is not known until the first callback! - schedules[id] = self; - self.timer = timer(schedule, 0, self.time); +function init(node, id) { + var schedule = node.__transition; + if (!schedule || !(schedule = schedule[id]) || schedule.state > CREATED) throw new Error("too late"); + return schedule; +} - // If the delay is greater than this first sleep, sleep some more; - // otherwise, start immediately. - function schedule(elapsed) { - self.state = SCHEDULED; - if (self.delay <= elapsed) start(elapsed - self.delay); - else self.timer.restart(start, self.delay, self.time); - } +function set$3(node, id) { + var schedule = node.__transition; + if (!schedule || !(schedule = schedule[id]) || schedule.state > STARTING) throw new Error("too late"); + return schedule; +} - function start(elapsed) { - var i, j, n, o; +function get$1(node, id) { + var schedule = node.__transition; + if (!schedule || !(schedule = schedule[id])) throw new Error("too late"); + return schedule; +} - for (i in schedules) { - o = schedules[i]; - if (o.name !== self.name) continue; +function create(node, id, self) { + var schedules = node.__transition, + tween; - // Interrupt the active transition, if any. - // Dispatch the interrupt event. - if (o.state === STARTED) { - o.state = ENDED; - o.timer.stop(); - o.on.call("interrupt", node, node.__data__, o.index, o.group); - delete schedules[i]; - } + // Initialize the self timer when the transition is created. + // Note the actual delay is not known until the first callback! + schedules[id] = self; + self.timer = timer(schedule, 0, self.time); - // Cancel any pre-empted transitions. No interrupt event is dispatched - // because the cancelled transitions never started. Note that this also - // removes this transition from the pending list! - else if (+i < id) { - o.state = ENDED; - o.timer.stop(); - delete schedules[i]; - } - } + function schedule(elapsed) { + self.state = SCHEDULED; + self.timer.restart(start, self.delay, self.time); - // Defer the first tick to end of the current frame; see mbostock/d3#1576. - // Note the transition may be canceled after start and before the first tick! - // Note this must be scheduled before the start event; see d3/d3-transition#16! - // Assuming this is successful, subsequent callbacks go straight to tick. - timeout$1(function() { - if (self.state === STARTED) { - self.timer.restart(tick, self.delay, self.time); - tick(elapsed); - } - }); + // If the elapsed delay is less than our first sleep, start immediately. + if (self.delay <= elapsed) start(elapsed - self.delay); + } - // Dispatch the start event. - // Note this must be done before the tween are initialized. - self.state = STARTING; - self.on.call("start", node, node.__data__, self.index, self.group); - if (self.state !== STARTING) return; // interrupted - self.state = STARTED; + function start(elapsed) { + var i, j, n, o; - // Initialize the tween, deleting null tween. - tween = new Array(n = self.tween.length); - for (i = 0, j = -1; i < n; ++i) { - if (o = self.tween[i].value.call(node, node.__data__, self.index, self.group)) { - tween[++j] = o; - } - } - tween.length = j + 1; - } + // If the state is not SCHEDULED, then we previously errored on start. + if (self.state !== SCHEDULED) return stop(); - function tick(elapsed) { - var t = elapsed < self.duration ? self.ease.call(null, elapsed / self.duration) : (self.state = ENDING, 1), - i = -1, - n = tween.length; + for (i in schedules) { + o = schedules[i]; + if (o.name !== self.name) continue; - while (++i < n) { - tween[i].call(null, t); + // While this element already has a starting transition during this frame, + // defer starting an interrupting transition until that transition has a + // chance to tick (and possibly end); see d3/d3-transition#54! + if (o.state === STARTED) return timeout$1(start); + + // Interrupt the active transition, if any. + // Dispatch the interrupt event. + if (o.state === RUNNING) { + o.state = ENDED; + o.timer.stop(); + o.on.call("interrupt", node, node.__data__, o.index, o.group); + delete schedules[i]; } - // Dispatch the end event. - if (self.state === ENDING) { - self.state = ENDED; - self.timer.stop(); - self.on.call("end", node, node.__data__, self.index, self.group); - for (i in schedules) if (+i !== id) return void delete schedules[id]; - delete node.__transition; + // Cancel any pre-empted transitions. No interrupt event is dispatched + // because the cancelled transitions never started. Note that this also + // removes this transition from the pending list! + else if (+i < id) { + o.state = ENDED; + o.timer.stop(); + delete schedules[i]; } } - } - function interrupt(node, name) { - var schedules = node.__transition, - schedule, - active, - empty = true, - i; + // Defer the first tick to end of the current frame; see d3/d3#1576. + // Note the transition may be canceled after start and before the first tick! + // Note this must be scheduled before the start event; see d3/d3-transition#16! + // Assuming this is successful, subsequent callbacks go straight to tick. + timeout$1(function() { + if (self.state === STARTED) { + self.state = RUNNING; + self.timer.restart(tick, self.delay, self.time); + tick(elapsed); + } + }); - if (!schedules) return; + // Dispatch the start event. + // Note this must be done before the tween are initialized. + self.state = STARTING; + self.on.call("start", node, node.__data__, self.index, self.group); + if (self.state !== STARTING) return; // interrupted + self.state = STARTED; - name = name == null ? null : name + ""; + // Initialize the tween, deleting null tween. + tween = new Array(n = self.tween.length); + for (i = 0, j = -1; i < n; ++i) { + if (o = self.tween[i].value.call(node, node.__data__, self.index, self.group)) { + tween[++j] = o; + } + } + tween.length = j + 1; + } - for (i in schedules) { - if ((schedule = schedules[i]).name !== name) { empty = false; continue; } - active = schedule.state === STARTED; - schedule.state = ENDED; - schedule.timer.stop(); - if (active) schedule.on.call("interrupt", node, node.__data__, schedule.index, schedule.group); - delete schedules[i]; + function tick(elapsed) { + var t = elapsed < self.duration ? self.ease.call(null, elapsed / self.duration) : (self.timer.restart(stop), self.state = ENDING, 1), + i = -1, + n = tween.length; + + while (++i < n) { + tween[i].call(null, t); } - if (empty) delete node.__transition; + // Dispatch the end event. + if (self.state === ENDING) { + self.on.call("end", node, node.__data__, self.index, self.group); + stop(); + } } - function selection_interrupt(name) { - return this.each(function() { - interrupt(this, name); - }); + function stop() { + self.state = ENDED; + self.timer.stop(); + delete schedules[id]; + for (var i in schedules) return; // eslint-disable-line no-unused-vars + delete node.__transition; } +} - function tweenRemove(id, name) { - var tween0, tween1; - return function() { - var schedule = set$2(this, id), - tween = schedule.tween; +var interrupt = function(node, name) { + var schedules = node.__transition, + schedule, + active, + empty = true, + i; - // If this node shared tween with the previous node, - // just assign the updated shared tween and we’re done! - // Otherwise, copy-on-write. - if (tween !== tween0) { - tween1 = tween0 = tween; - for (var i = 0, n = tween1.length; i < n; ++i) { - if (tween1[i].name === name) { - tween1 = tween1.slice(); - tween1.splice(i, 1); - break; - } - } - } + if (!schedules) return; - schedule.tween = tween1; - }; + name = name == null ? null : name + ""; + + for (i in schedules) { + if ((schedule = schedules[i]).name !== name) { empty = false; continue; } + active = schedule.state === STARTED; + schedule.state = ENDED; + schedule.timer.stop(); + if (active) schedule.on.call("interrupt", node, node.__data__, schedule.index, schedule.group); + delete schedules[i]; } - function tweenFunction(id, name, value) { - var tween0, tween1; - if (typeof value !== "function") throw new Error; - return function() { - var schedule = set$2(this, id), - tween = schedule.tween; + if (empty) delete node.__transition; +} - // If this node shared tween with the previous node, - // just assign the updated shared tween and we’re done! - // Otherwise, copy-on-write. - if (tween !== tween0) { - tween1 = (tween0 = tween).slice(); - for (var t = {name: name, value: value}, i = 0, n = tween1.length; i < n; ++i) { - if (tween1[i].name === name) { - tween1[i] = t; - break; - } +var selection_interrupt = function(name) { + return this.each(function() { + interrupt(this, name); + }); +} + +function tweenRemove(id, name) { + var tween0, tween1; + return function() { + var schedule = set$3(this, id), + tween = schedule.tween; + + // If this node shared tween with the previous node, + // just assign the updated shared tween and we’re done! + // Otherwise, copy-on-write. + if (tween !== tween0) { + tween1 = tween0 = tween; + for (var i = 0, n = tween1.length; i < n; ++i) { + if (tween1[i].name === name) { + tween1 = tween1.slice(); + tween1.splice(i, 1); + break; } - if (i === n) tween1.push(t); } + } - schedule.tween = tween1; - }; - } + schedule.tween = tween1; + }; +} - function transition_tween(name, value) { - var id = this._id; +function tweenFunction(id, name, value) { + var tween0, tween1; + if (typeof value !== "function") throw new Error; + return function() { + var schedule = set$3(this, id), + tween = schedule.tween; - name += ""; - - if (arguments.length < 2) { - var tween = get$1(this.node(), id).tween; - for (var i = 0, n = tween.length, t; i < n; ++i) { - if ((t = tween[i]).name === name) { - return t.value; + // If this node shared tween with the previous node, + // just assign the updated shared tween and we’re done! + // Otherwise, copy-on-write. + if (tween !== tween0) { + tween1 = (tween0 = tween).slice(); + for (var t = {name: name, value: value}, i = 0, n = tween1.length; i < n; ++i) { + if (tween1[i].name === name) { + tween1[i] = t; + break; } } - return null; + if (i === n) tween1.push(t); } - return this.each((value == null ? tweenRemove : tweenFunction)(id, name, value)); - } + schedule.tween = tween1; + }; +} - function tweenValue(transition, name, value) { - var id = transition._id; +var transition_tween = function(name, value) { + var id = this._id; - transition.each(function() { - var schedule = set$2(this, id); - (schedule.value || (schedule.value = {}))[name] = value.apply(this, arguments); - }); + name += ""; - return function(node) { - return get$1(node, id).value[name]; - }; + if (arguments.length < 2) { + var tween = get$1(this.node(), id).tween; + for (var i = 0, n = tween.length, t; i < n; ++i) { + if ((t = tween[i]).name === name) { + return t.value; + } + } + return null; } - function interpolate$1(a, b) { - var c; - return (typeof b === "number" ? interpolateNumber - : b instanceof color ? interpolateRgb - : (c = color(b)) ? (b = c, interpolateRgb) - : interpolateString)(a, b); - } + return this.each((value == null ? tweenRemove : tweenFunction)(id, name, value)); +} - function attrRemove$1(name) { - return function() { - this.removeAttribute(name); - }; - } +function tweenValue(transition, name, value) { + var id = transition._id; - function attrRemoveNS$1(fullname) { - return function() { - this.removeAttributeNS(fullname.space, fullname.local); - }; - } + transition.each(function() { + var schedule = set$3(this, id); + (schedule.value || (schedule.value = {}))[name] = value.apply(this, arguments); + }); - function attrConstant$1(name, interpolate, value1) { - var value00, - interpolate0; - return function() { - var value0 = this.getAttribute(name); - return value0 === value1 ? null - : value0 === value00 ? interpolate0 - : interpolate0 = interpolate(value00 = value0, value1); - }; - } + return function(node) { + return get$1(node, id).value[name]; + }; +} - function attrConstantNS$1(fullname, interpolate, value1) { - var value00, - interpolate0; - return function() { - var value0 = this.getAttributeNS(fullname.space, fullname.local); - return value0 === value1 ? null - : value0 === value00 ? interpolate0 - : interpolate0 = interpolate(value00 = value0, value1); - }; - } +var interpolate$1 = function(a, b) { + var c; + return (typeof b === "number" ? interpolateNumber + : b instanceof color ? interpolateRgb + : (c = color(b)) ? (b = c, interpolateRgb) + : interpolateString)(a, b); +} - function attrFunction$1(name, interpolate, value) { - var value00, - value10, - interpolate0; - return function() { - var value0, value1 = value(this); - if (value1 == null) return void this.removeAttribute(name); - value0 = this.getAttribute(name); - return value0 === value1 ? null - : value0 === value00 && value1 === value10 ? interpolate0 - : interpolate0 = interpolate(value00 = value0, value10 = value1); - }; - } +function attrRemove$1(name) { + return function() { + this.removeAttribute(name); + }; +} - function attrFunctionNS$1(fullname, interpolate, value) { - var value00, - value10, - interpolate0; - return function() { - var value0, value1 = value(this); - if (value1 == null) return void this.removeAttributeNS(fullname.space, fullname.local); - value0 = this.getAttributeNS(fullname.space, fullname.local); - return value0 === value1 ? null - : value0 === value00 && value1 === value10 ? interpolate0 - : interpolate0 = interpolate(value00 = value0, value10 = value1); - }; - } +function attrRemoveNS$1(fullname) { + return function() { + this.removeAttributeNS(fullname.space, fullname.local); + }; +} - function transition_attr(name, value) { - var fullname = namespace(name), i = fullname === "transform" ? interpolateTransform$2 : interpolate$1; - return this.attrTween(name, typeof value === "function" - ? (fullname.local ? attrFunctionNS$1 : attrFunction$1)(fullname, i, tweenValue(this, "attr." + name, value)) - : value == null ? (fullname.local ? attrRemoveNS$1 : attrRemove$1)(fullname) - : (fullname.local ? attrConstantNS$1 : attrConstant$1)(fullname, i, value)); - } +function attrConstant$1(name, interpolate$$1, value1) { + var value00, + interpolate0; + return function() { + var value0 = this.getAttribute(name); + return value0 === value1 ? null + : value0 === value00 ? interpolate0 + : interpolate0 = interpolate$$1(value00 = value0, value1); + }; +} - function attrTweenNS(fullname, value) { - function tween() { - var node = this, i = value.apply(node, arguments); - return i && function(t) { - node.setAttributeNS(fullname.space, fullname.local, i(t)); - }; - } - tween._value = value; - return tween; - } +function attrConstantNS$1(fullname, interpolate$$1, value1) { + var value00, + interpolate0; + return function() { + var value0 = this.getAttributeNS(fullname.space, fullname.local); + return value0 === value1 ? null + : value0 === value00 ? interpolate0 + : interpolate0 = interpolate$$1(value00 = value0, value1); + }; +} - function attrTween(name, value) { - function tween() { - var node = this, i = value.apply(node, arguments); - return i && function(t) { - node.setAttribute(name, i(t)); - }; - } - tween._value = value; - return tween; - } +function attrFunction$1(name, interpolate$$1, value) { + var value00, + value10, + interpolate0; + return function() { + var value0, value1 = value(this); + if (value1 == null) return void this.removeAttribute(name); + value0 = this.getAttribute(name); + return value0 === value1 ? null + : value0 === value00 && value1 === value10 ? interpolate0 + : interpolate0 = interpolate$$1(value00 = value0, value10 = value1); + }; +} - function transition_attrTween(name, value) { - var key = "attr." + name; - if (arguments.length < 2) return (key = this.tween(key)) && key._value; - if (value == null) return this.tween(key, null); - if (typeof value !== "function") throw new Error; - var fullname = namespace(name); - return this.tween(key, (fullname.local ? attrTweenNS : attrTween)(fullname, value)); - } +function attrFunctionNS$1(fullname, interpolate$$1, value) { + var value00, + value10, + interpolate0; + return function() { + var value0, value1 = value(this); + if (value1 == null) return void this.removeAttributeNS(fullname.space, fullname.local); + value0 = this.getAttributeNS(fullname.space, fullname.local); + return value0 === value1 ? null + : value0 === value00 && value1 === value10 ? interpolate0 + : interpolate0 = interpolate$$1(value00 = value0, value10 = value1); + }; +} - function delayFunction(id, value) { - return function() { - init(this, id).delay = +value.apply(this, arguments); +var transition_attr = function(name, value) { + var fullname = namespace(name), i = fullname === "transform" ? interpolateTransformSvg : interpolate$1; + return this.attrTween(name, typeof value === "function" + ? (fullname.local ? attrFunctionNS$1 : attrFunction$1)(fullname, i, tweenValue(this, "attr." + name, value)) + : value == null ? (fullname.local ? attrRemoveNS$1 : attrRemove$1)(fullname) + : (fullname.local ? attrConstantNS$1 : attrConstant$1)(fullname, i, value)); +} + +function attrTweenNS(fullname, value) { + function tween() { + var node = this, i = value.apply(node, arguments); + return i && function(t) { + node.setAttributeNS(fullname.space, fullname.local, i(t)); }; } + tween._value = value; + return tween; +} - function delayConstant(id, value) { - return value = +value, function() { - init(this, id).delay = value; +function attrTween(name, value) { + function tween() { + var node = this, i = value.apply(node, arguments); + return i && function(t) { + node.setAttribute(name, i(t)); }; } + tween._value = value; + return tween; +} - function transition_delay(value) { - var id = this._id; +var transition_attrTween = function(name, value) { + var key = "attr." + name; + if (arguments.length < 2) return (key = this.tween(key)) && key._value; + if (value == null) return this.tween(key, null); + if (typeof value !== "function") throw new Error; + var fullname = namespace(name); + return this.tween(key, (fullname.local ? attrTweenNS : attrTween)(fullname, value)); +} - return arguments.length - ? this.each((typeof value === "function" - ? delayFunction - : delayConstant)(id, value)) - : get$1(this.node(), id).delay; - } +function delayFunction(id, value) { + return function() { + init(this, id).delay = +value.apply(this, arguments); + }; +} - function durationFunction(id, value) { - return function() { - set$2(this, id).duration = +value.apply(this, arguments); - }; - } +function delayConstant(id, value) { + return value = +value, function() { + init(this, id).delay = value; + }; +} - function durationConstant(id, value) { - return value = +value, function() { - set$2(this, id).duration = value; - }; - } +var transition_delay = function(value) { + var id = this._id; - function transition_duration(value) { - var id = this._id; + return arguments.length + ? this.each((typeof value === "function" + ? delayFunction + : delayConstant)(id, value)) + : get$1(this.node(), id).delay; +} - return arguments.length - ? this.each((typeof value === "function" - ? durationFunction - : durationConstant)(id, value)) - : get$1(this.node(), id).duration; - } +function durationFunction(id, value) { + return function() { + set$3(this, id).duration = +value.apply(this, arguments); + }; +} - function easeConstant(id, value) { - if (typeof value !== "function") throw new Error; - return function() { - set$2(this, id).ease = value; - }; - } +function durationConstant(id, value) { + return value = +value, function() { + set$3(this, id).duration = value; + }; +} - function transition_ease(value) { - var id = this._id; +var transition_duration = function(value) { + var id = this._id; - return arguments.length - ? this.each(easeConstant(id, value)) - : get$1(this.node(), id).ease; - } + return arguments.length + ? this.each((typeof value === "function" + ? durationFunction + : durationConstant)(id, value)) + : get$1(this.node(), id).duration; +} - function transition_filter(match) { - if (typeof match !== "function") match = matcher$1(match); +function easeConstant(id, value) { + if (typeof value !== "function") throw new Error; + return function() { + set$3(this, id).ease = value; + }; +} - for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) { - if ((node = group[i]) && match.call(node, node.__data__, i, group)) { - subgroup.push(node); - } - } - } +var transition_ease = function(value) { + var id = this._id; - return new Transition(subgroups, this._parents, this._name, this._id); - } + return arguments.length + ? this.each(easeConstant(id, value)) + : get$1(this.node(), id).ease; +} - function transition_merge(transition) { - if (transition._id !== this._id) throw new Error; +var transition_filter = function(match) { + if (typeof match !== "function") match = matcher$1(match); - for (var groups0 = this._groups, groups1 = transition._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) { - for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) { - if (node = group0[i] || group1[i]) { - merge[i] = node; - } + for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) { + if ((node = group[i]) && match.call(node, node.__data__, i, group)) { + subgroup.push(node); } } + } - for (; j < m0; ++j) { - merges[j] = groups0[j]; - } + return new Transition(subgroups, this._parents, this._name, this._id); +} - return new Transition(merges, this._parents, this._name, this._id); +var transition_merge = function(transition) { + if (transition._id !== this._id) throw new Error; + + for (var groups0 = this._groups, groups1 = transition._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) { + for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) { + if (node = group0[i] || group1[i]) { + merge[i] = node; + } + } } - function start$1(name) { - return (name + "").trim().split(/^|\s+/).every(function(t) { - var i = t.indexOf("."); - if (i >= 0) t = t.slice(0, i); - return !t || t === "start"; - }); + for (; j < m0; ++j) { + merges[j] = groups0[j]; } - function onFunction(id, name, listener) { - var on0, on1, sit = start$1(name) ? init : set$2; - return function() { - var schedule = sit(this, id), - on = schedule.on; + return new Transition(merges, this._parents, this._name, this._id); +} - // If this node shared a dispatch with the previous node, - // just assign the updated shared dispatch and we’re done! - // Otherwise, copy-on-write. - if (on !== on0) (on1 = (on0 = on).copy()).on(name, listener); +function start$1(name) { + return (name + "").trim().split(/^|\s+/).every(function(t) { + var i = t.indexOf("."); + if (i >= 0) t = t.slice(0, i); + return !t || t === "start"; + }); +} - schedule.on = on1; - }; - } +function onFunction(id, name, listener) { + var on0, on1, sit = start$1(name) ? init : set$3; + return function() { + var schedule = sit(this, id), + on = schedule.on; - function transition_on(name, listener) { - var id = this._id; + // If this node shared a dispatch with the previous node, + // just assign the updated shared dispatch and we’re done! + // Otherwise, copy-on-write. + if (on !== on0) (on1 = (on0 = on).copy()).on(name, listener); - return arguments.length < 2 - ? get$1(this.node(), id).on.on(name) - : this.each(onFunction(id, name, listener)); - } + schedule.on = on1; + }; +} - function removeFunction(id) { - return function() { - var parent = this.parentNode; - for (var i in this.__transition) if (+i !== id) return; - if (parent) parent.removeChild(this); - }; - } +var transition_on = function(name, listener) { + var id = this._id; - function transition_remove() { - return this.on("end.remove", removeFunction(this._id)); - } + return arguments.length < 2 + ? get$1(this.node(), id).on.on(name) + : this.each(onFunction(id, name, listener)); +} - function transition_select(select) { - var name = this._name, - id = this._id; +function removeFunction(id) { + return function() { + var parent = this.parentNode; + for (var i in this.__transition) if (+i !== id) return; + if (parent) parent.removeChild(this); + }; +} - if (typeof select !== "function") select = selector(select); +var transition_remove = function() { + return this.on("end.remove", removeFunction(this._id)); +} - for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) { - if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) { - if ("__data__" in node) subnode.__data__ = node.__data__; - subgroup[i] = subnode; - schedule(subgroup[i], name, id, i, subgroup, get$1(node, id)); - } +var transition_select = function(select$$1) { + var name = this._name, + id = this._id; + + if (typeof select$$1 !== "function") select$$1 = selector(select$$1); + + for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) { + if ((node = group[i]) && (subnode = select$$1.call(node, node.__data__, i, group))) { + if ("__data__" in node) subnode.__data__ = node.__data__; + subgroup[i] = subnode; + schedule(subgroup[i], name, id, i, subgroup, get$1(node, id)); } } - - return new Transition(subgroups, this._parents, name, id); } - function transition_selectAll(select) { - var name = this._name, - id = this._id; + return new Transition(subgroups, this._parents, name, id); +} - if (typeof select !== "function") select = selectorAll(select); +var transition_selectAll = function(select$$1) { + var name = this._name, + id = this._id; - for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { - if (node = group[i]) { - for (var children = select.call(node, node.__data__, i, group), child, inherit = get$1(node, id), k = 0, l = children.length; k < l; ++k) { - if (child = children[k]) { - schedule(child, name, id, k, children, inherit); - } + if (typeof select$$1 !== "function") select$$1 = selectorAll(select$$1); + + for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { + if (node = group[i]) { + for (var children = select$$1.call(node, node.__data__, i, group), child, inherit = get$1(node, id), k = 0, l = children.length; k < l; ++k) { + if (child = children[k]) { + schedule(child, name, id, k, children, inherit); } - subgroups.push(children); - parents.push(node); } + subgroups.push(children); + parents.push(node); } } - - return new Transition(subgroups, parents, name, id); } - var Selection$1 = selection.prototype.constructor; + return new Transition(subgroups, parents, name, id); +} - function transition_selection() { - return new Selection$1(this._groups, this._parents); - } +var Selection$1 = selection.prototype.constructor; - function styleRemove$1(name, interpolate) { - var value00, - value10, - interpolate0; - return function() { - var style = window(this).getComputedStyle(this, null), - value0 = style.getPropertyValue(name), - value1 = (this.style.removeProperty(name), style.getPropertyValue(name)); - return value0 === value1 ? null - : value0 === value00 && value1 === value10 ? interpolate0 - : interpolate0 = interpolate(value00 = value0, value10 = value1); - }; - } +var transition_selection = function() { + return new Selection$1(this._groups, this._parents); +} - function styleRemoveEnd(name) { - return function() { - this.style.removeProperty(name); - }; - } +function styleRemove$1(name, interpolate$$1) { + var value00, + value10, + interpolate0; + return function() { + var style = window(this).getComputedStyle(this, null), + value0 = style.getPropertyValue(name), + value1 = (this.style.removeProperty(name), style.getPropertyValue(name)); + return value0 === value1 ? null + : value0 === value00 && value1 === value10 ? interpolate0 + : interpolate0 = interpolate$$1(value00 = value0, value10 = value1); + }; +} - function styleConstant$1(name, interpolate, value1) { - var value00, - interpolate0; - return function() { - var value0 = window(this).getComputedStyle(this, null).getPropertyValue(name); - return value0 === value1 ? null - : value0 === value00 ? interpolate0 - : interpolate0 = interpolate(value00 = value0, value1); - }; - } +function styleRemoveEnd(name) { + return function() { + this.style.removeProperty(name); + }; +} - function styleFunction$1(name, interpolate, value) { - var value00, - value10, - interpolate0; - return function() { - var style = window(this).getComputedStyle(this, null), - value0 = style.getPropertyValue(name), - value1 = value(this); - if (value1 == null) value1 = (this.style.removeProperty(name), style.getPropertyValue(name)); - return value0 === value1 ? null - : value0 === value00 && value1 === value10 ? interpolate0 - : interpolate0 = interpolate(value00 = value0, value10 = value1); - }; - } +function styleConstant$1(name, interpolate$$1, value1) { + var value00, + interpolate0; + return function() { + var value0 = window(this).getComputedStyle(this, null).getPropertyValue(name); + return value0 === value1 ? null + : value0 === value00 ? interpolate0 + : interpolate0 = interpolate$$1(value00 = value0, value1); + }; +} - function transition_style(name, value, priority) { - var i = (name += "") === "transform" ? interpolateTransform$1 : interpolate$1; - return value == null ? this - .styleTween(name, styleRemove$1(name, i)) - .on("end.style." + name, styleRemoveEnd(name)) - : this.styleTween(name, typeof value === "function" - ? styleFunction$1(name, i, tweenValue(this, "style." + name, value)) - : styleConstant$1(name, i, value), priority); - } +function styleFunction$1(name, interpolate$$1, value) { + var value00, + value10, + interpolate0; + return function() { + var style = window(this).getComputedStyle(this, null), + value0 = style.getPropertyValue(name), + value1 = value(this); + if (value1 == null) value1 = (this.style.removeProperty(name), style.getPropertyValue(name)); + return value0 === value1 ? null + : value0 === value00 && value1 === value10 ? interpolate0 + : interpolate0 = interpolate$$1(value00 = value0, value10 = value1); + }; +} - function styleTween(name, value, priority) { - function tween() { - var node = this, i = value.apply(node, arguments); - return i && function(t) { - node.style.setProperty(name, i(t), priority); - }; - } - tween._value = value; - return tween; - } +var transition_style = function(name, value, priority) { + var i = (name += "") === "transform" ? interpolateTransformCss : interpolate$1; + return value == null ? this + .styleTween(name, styleRemove$1(name, i)) + .on("end.style." + name, styleRemoveEnd(name)) + : this.styleTween(name, typeof value === "function" + ? styleFunction$1(name, i, tweenValue(this, "style." + name, value)) + : styleConstant$1(name, i, value), priority); +} - function transition_styleTween(name, value, priority) { - var key = "style." + (name += ""); - if (arguments.length < 2) return (key = this.tween(key)) && key._value; - if (value == null) return this.tween(key, null); - if (typeof value !== "function") throw new Error; - return this.tween(key, styleTween(name, value, priority == null ? "" : priority)); - } - - function textConstant$1(value) { - return function() { - this.textContent = value; +function styleTween(name, value, priority) { + function tween() { + var node = this, i = value.apply(node, arguments); + return i && function(t) { + node.style.setProperty(name, i(t), priority); }; } + tween._value = value; + return tween; +} - function textFunction$1(value) { - return function() { - var value1 = value(this); - this.textContent = value1 == null ? "" : value1; - }; - } +var transition_styleTween = function(name, value, priority) { + var key = "style." + (name += ""); + if (arguments.length < 2) return (key = this.tween(key)) && key._value; + if (value == null) return this.tween(key, null); + if (typeof value !== "function") throw new Error; + return this.tween(key, styleTween(name, value, priority == null ? "" : priority)); +} - function transition_text(value) { - return this.tween("text", typeof value === "function" - ? textFunction$1(tweenValue(this, "text", value)) - : textConstant$1(value == null ? "" : value + "")); - } +function textConstant$1(value) { + return function() { + this.textContent = value; + }; +} - function transition_transition() { - var name = this._name, - id0 = this._id, - id1 = newId(); +function textFunction$1(value) { + return function() { + var value1 = value(this); + this.textContent = value1 == null ? "" : value1; + }; +} - for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { - if (node = group[i]) { - var inherit = get$1(node, id0); - schedule(node, name, id1, i, group, { - time: inherit.time + inherit.delay + inherit.duration, - delay: 0, - duration: inherit.duration, - ease: inherit.ease - }); - } +var transition_text = function(value) { + return this.tween("text", typeof value === "function" + ? textFunction$1(tweenValue(this, "text", value)) + : textConstant$1(value == null ? "" : value + "")); +} + +var transition_transition = function() { + var name = this._name, + id0 = this._id, + id1 = newId(); + + for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { + if (node = group[i]) { + var inherit = get$1(node, id0); + schedule(node, name, id1, i, group, { + time: inherit.time + inherit.delay + inherit.duration, + delay: 0, + duration: inherit.duration, + ease: inherit.ease + }); } } - - return new Transition(groups, this._parents, name, id1); } - var id = 0; + return new Transition(groups, this._parents, name, id1); +} - function Transition(groups, parents, name, id) { - this._groups = groups; - this._parents = parents; - this._name = name; - this._id = id; - } +var id = 0; - function transition(name) { - return selection().transition(name); - } +function Transition(groups, parents, name, id) { + this._groups = groups; + this._parents = parents; + this._name = name; + this._id = id; +} - function newId() { - return ++id; - } +function transition(name) { + return selection().transition(name); +} - var selection_prototype = selection.prototype; +function newId() { + return ++id; +} - Transition.prototype = transition.prototype = { - constructor: Transition, - select: transition_select, - selectAll: transition_selectAll, - filter: transition_filter, - merge: transition_merge, - selection: transition_selection, - transition: transition_transition, - call: selection_prototype.call, - nodes: selection_prototype.nodes, - node: selection_prototype.node, - size: selection_prototype.size, - empty: selection_prototype.empty, - each: selection_prototype.each, - on: transition_on, - attr: transition_attr, - attrTween: transition_attrTween, - style: transition_style, - styleTween: transition_styleTween, - text: transition_text, - remove: transition_remove, - tween: transition_tween, - delay: transition_delay, - duration: transition_duration, - ease: transition_ease - }; +var selection_prototype = selection.prototype; - var defaultTiming = { - time: null, // Set on use. - delay: 0, - duration: 250, - ease: easeCubicInOut - }; +Transition.prototype = transition.prototype = { + constructor: Transition, + select: transition_select, + selectAll: transition_selectAll, + filter: transition_filter, + merge: transition_merge, + selection: transition_selection, + transition: transition_transition, + call: selection_prototype.call, + nodes: selection_prototype.nodes, + node: selection_prototype.node, + size: selection_prototype.size, + empty: selection_prototype.empty, + each: selection_prototype.each, + on: transition_on, + attr: transition_attr, + attrTween: transition_attrTween, + style: transition_style, + styleTween: transition_styleTween, + text: transition_text, + remove: transition_remove, + tween: transition_tween, + delay: transition_delay, + duration: transition_duration, + ease: transition_ease +}; - function inherit(node, id) { - var timing; - while (!(timing = node.__transition) || !(timing = timing[id])) { - if (!(node = node.parentNode)) { - return defaultTiming.time = now(), defaultTiming; - } +var defaultTiming = { + time: null, // Set on use. + delay: 0, + duration: 250, + ease: cubicInOut +}; + +function inherit(node, id) { + var timing; + while (!(timing = node.__transition) || !(timing = timing[id])) { + if (!(node = node.parentNode)) { + return defaultTiming.time = now(), defaultTiming; } - return timing; } + return timing; +} - function selection_transition(name) { - var id, - timing; +var selection_transition = function(name) { + var id, + timing; - if (name instanceof Transition) { - id = name._id, name = name._name; - } else { - id = newId(), (timing = defaultTiming).time = now(), name = name == null ? null : name + ""; - } + if (name instanceof Transition) { + id = name._id, name = name._name; + } else { + id = newId(), (timing = defaultTiming).time = now(), name = name == null ? null : name + ""; + } - for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { - if (node = group[i]) { - schedule(node, name, id, i, group, timing || inherit(node, id)); - } + for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { + if (node = group[i]) { + schedule(node, name, id, i, group, timing || inherit(node, id)); } } - - return new Transition(groups, this._parents, name, id); } - selection.prototype.interrupt = selection_interrupt; - selection.prototype.transition = selection_transition; + return new Transition(groups, this._parents, name, id); +} - var root$1 = [null]; +selection.prototype.interrupt = selection_interrupt; +selection.prototype.transition = selection_transition; - function active(node, name) { - var schedules = node.__transition, - schedule, - i; +var root$1 = [null]; - if (schedules) { - name = name == null ? null : name + ""; - for (i in schedules) { - if ((schedule = schedules[i]).state > SCHEDULED && schedule.name === name) { - return new Transition([[node]], root$1, name, +i); - } +var active = function(node, name) { + var schedules = node.__transition, + schedule, + i; + + if (schedules) { + name = name == null ? null : name + ""; + for (i in schedules) { + if ((schedule = schedules[i]).state > SCHEDULED && schedule.name === name) { + return new Transition([[node]], root$1, name, +i); } } - - return null; } - var slice$4 = Array.prototype.slice; + return null; +} - function identity$5(x) { - return x; - } +var slice$4 = Array.prototype.slice; - var top = 1; - var right = 2; - var bottom = 3; - var left = 4; -var epsilon$2 = 1e-6; - function translateX(scale0, scale1, d) { - var x = scale0(d); - return "translate(" + (isFinite(x) ? x : scale1(d)) + ",0)"; - } +var identity$5 = function(x) { + return x; +} - function translateY(scale0, scale1, d) { - var y = scale0(d); - return "translate(0," + (isFinite(y) ? y : scale1(d)) + ")"; - } +var top = 1; +var right = 2; +var bottom = 3; +var left = 4; +var epsilon$2 = 1e-6; - function center(scale) { - var offset = scale.bandwidth() / 2; - if (scale.round()) offset = Math.round(offset); - return function(d) { - return scale(d) + offset; - }; - } +function translateX(scale0, scale1, d) { + var x = scale0(d); + return "translate(" + (isFinite(x) ? x : scale1(d)) + ",0)"; +} - function entering() { - return !this.__axis; - } +function translateY(scale0, scale1, d) { + var y = scale0(d); + return "translate(0," + (isFinite(y) ? y : scale1(d)) + ")"; +} - function axis(orient, scale) { - var tickArguments = [], - tickValues = null, - tickFormat = null, - tickSizeInner = 6, - tickSizeOuter = 6, - tickPadding = 3; +function center(scale) { + var offset = scale.bandwidth() / 2; + if (scale.round()) offset = Math.round(offset); + return function(d) { + return scale(d) + offset; + }; +} - function axis(context) { - var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues, - format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity$5) : tickFormat, - spacing = Math.max(tickSizeInner, 0) + tickPadding, - transform = orient === top || orient === bottom ? translateX : translateY, - range = scale.range(), - range0 = range[0] + 0.5, - range1 = range[range.length - 1] + 0.5, - position = (scale.bandwidth ? center : identity$5)(scale.copy()), - selection = context.selection ? context.selection() : context, - path = selection.selectAll(".domain").data([null]), - tick = selection.selectAll(".tick").data(values, scale).order(), - tickExit = tick.exit(), - tickEnter = tick.enter().append("g").attr("class", "tick"), - line = tick.select("line"), - text = tick.select("text"), - k = orient === top || orient === left ? -1 : 1, - x, y = orient === left || orient === right ? (x = "x", "y") : (x = "y", "x"); +function entering() { + return !this.__axis; +} - path = path.merge(path.enter().insert("path", ".tick") - .attr("class", "domain") - .attr("stroke", "#000")); +function axis(orient, scale) { + var tickArguments = [], + tickValues = null, + tickFormat = null, + tickSizeInner = 6, + tickSizeOuter = 6, + tickPadding = 3; - tick = tick.merge(tickEnter); + function axis(context) { + var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues, + format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity$5) : tickFormat, + spacing = Math.max(tickSizeInner, 0) + tickPadding, + transform = orient === top || orient === bottom ? translateX : translateY, + range = scale.range(), + range0 = range[0] + 0.5, + range1 = range[range.length - 1] + 0.5, + position = (scale.bandwidth ? center : identity$5)(scale.copy()), + selection = context.selection ? context.selection() : context, + path = selection.selectAll(".domain").data([null]), + tick = selection.selectAll(".tick").data(values, scale).order(), + tickExit = tick.exit(), + tickEnter = tick.enter().append("g").attr("class", "tick"), + line = tick.select("line"), + text = tick.select("text"), + k = orient === top || orient === left ? -1 : 1, + x, y = orient === left || orient === right ? (x = "x", "y") : (x = "y", "x"); - line = line.merge(tickEnter.append("line") - .attr("stroke", "#000") - .attr(x + "2", k * tickSizeInner) - .attr(y + "1", 0.5) - .attr(y + "2", 0.5)); + path = path.merge(path.enter().insert("path", ".tick") + .attr("class", "domain") + .attr("stroke", "#000")); - text = text.merge(tickEnter.append("text") - .attr("fill", "#000") - .attr(x, k * spacing) - .attr(y, 0.5) - .attr("dy", orient === top ? "0em" : orient === bottom ? "0.71em" : "0.32em")); + tick = tick.merge(tickEnter); - if (context !== selection) { - path = path.transition(context); - tick = tick.transition(context); - line = line.transition(context); - text = text.transition(context); + line = line.merge(tickEnter.append("line") + .attr("stroke", "#000") + .attr(x + "2", k * tickSizeInner) + .attr(y + "1", 0.5) + .attr(y + "2", 0.5)); - tickExit = tickExit.transition(context) - .attr("opacity", epsilon$2) - .attr("transform", function(d) { return transform(position, this.parentNode.__axis || position, d); }); + text = text.merge(tickEnter.append("text") + .attr("fill", "#000") + .attr(x, k * spacing) + .attr(y, 0.5) + .attr("dy", orient === top ? "0em" : orient === bottom ? "0.71em" : "0.32em")); - tickEnter - .attr("opacity", epsilon$2) - .attr("transform", function(d) { return transform(this.parentNode.__axis || position, position, d); }); - } + if (context !== selection) { + path = path.transition(context); + tick = tick.transition(context); + line = line.transition(context); + text = text.transition(context); - tickExit.remove(); + tickExit = tickExit.transition(context) + .attr("opacity", epsilon$2) + .attr("transform", function(d) { return transform(position, this.parentNode.__axis || position, d); }); - path - .attr("d", orient === left || orient == right - ? "M" + k * tickSizeOuter + "," + range0 + "H0.5V" + range1 + "H" + k * tickSizeOuter - : "M" + range0 + "," + k * tickSizeOuter + "V0.5H" + range1 + "V" + k * tickSizeOuter); + tickEnter + .attr("opacity", epsilon$2) + .attr("transform", function(d) { return transform(this.parentNode.__axis || position, position, d); }); + } - tick - .attr("opacity", 1) - .attr("transform", function(d) { return transform(position, position, d); }); + tickExit.remove(); - line - .attr(x + "2", k * tickSizeInner); + path + .attr("d", orient === left || orient == right + ? "M" + k * tickSizeOuter + "," + range0 + "H0.5V" + range1 + "H" + k * tickSizeOuter + : "M" + range0 + "," + k * tickSizeOuter + "V0.5H" + range1 + "V" + k * tickSizeOuter); - text - .attr(x, k * spacing) - .text(format); + tick + .attr("opacity", 1) + .attr("transform", function(d) { return transform(position, position, d); }); - selection.filter(entering) - .attr("fill", "none") - .attr("font-size", 10) - .attr("font-family", "sans-serif") - .attr("text-anchor", orient === right ? "start" : orient === left ? "end" : "middle"); + line + .attr(x + "2", k * tickSizeInner); - selection - .each(function() { this.__axis = position; }); - } + text + .attr(x, k * spacing) + .text(format); - axis.scale = function(_) { - return arguments.length ? (scale = _, axis) : scale; - }; + selection.filter(entering) + .attr("fill", "none") + .attr("font-size", 10) + .attr("font-family", "sans-serif") + .attr("text-anchor", orient === right ? "start" : orient === left ? "end" : "middle"); - axis.ticks = function() { - return tickArguments = slice$4.call(arguments), axis; - }; + selection + .each(function() { this.__axis = position; }); + } - axis.tickArguments = function(_) { - return arguments.length ? (tickArguments = _ == null ? [] : slice$4.call(_), axis) : tickArguments.slice(); - }; + axis.scale = function(_) { + return arguments.length ? (scale = _, axis) : scale; + }; - axis.tickValues = function(_) { - return arguments.length ? (tickValues = _ == null ? null : slice$4.call(_), axis) : tickValues && tickValues.slice(); - }; + axis.ticks = function() { + return tickArguments = slice$4.call(arguments), axis; + }; - axis.tickFormat = function(_) { - return arguments.length ? (tickFormat = _, axis) : tickFormat; - }; + axis.tickArguments = function(_) { + return arguments.length ? (tickArguments = _ == null ? [] : slice$4.call(_), axis) : tickArguments.slice(); + }; - axis.tickSize = function(_) { - return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner; - }; + axis.tickValues = function(_) { + return arguments.length ? (tickValues = _ == null ? null : slice$4.call(_), axis) : tickValues && tickValues.slice(); + }; - axis.tickSizeInner = function(_) { - return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner; - }; + axis.tickFormat = function(_) { + return arguments.length ? (tickFormat = _, axis) : tickFormat; + }; - axis.tickSizeOuter = function(_) { - return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter; - }; + axis.tickSize = function(_) { + return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner; + }; - axis.tickPadding = function(_) { - return arguments.length ? (tickPadding = +_, axis) : tickPadding; - }; + axis.tickSizeInner = function(_) { + return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner; + }; - return axis; - } + axis.tickSizeOuter = function(_) { + return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter; + }; - function axisTop(scale) { - return axis(top, scale); - } + axis.tickPadding = function(_) { + return arguments.length ? (tickPadding = +_, axis) : tickPadding; + }; - function axisRight(scale) { - return axis(right, scale); - } + return axis; +} - function axisBottom(scale) { - return axis(bottom, scale); - } +function axisTop(scale) { + return axis(top, scale); +} - function axisLeft(scale) { - return axis(left, scale); - } +function axisRight(scale) { + return axis(right, scale); +} - function defaultSeparation(a, b) { - return a.parent === b.parent ? 1 : 2; - } +function axisBottom(scale) { + return axis(bottom, scale); +} - function meanX(children) { - return children.reduce(meanXReduce, 0) / children.length; - } +function axisLeft(scale) { + return axis(left, scale); +} - function meanXReduce(x, c) { - return x + c.x; - } +function defaultSeparation(a, b) { + return a.parent === b.parent ? 1 : 2; +} - function maxY(children) { - return 1 + children.reduce(maxYReduce, 0); - } +function meanX(children) { + return children.reduce(meanXReduce, 0) / children.length; +} - function maxYReduce(y, c) { - return Math.max(y, c.y); - } +function meanXReduce(x, c) { + return x + c.x; +} - function leafLeft(node) { - var children; - while (children = node.children) node = children[0]; - return node; - } +function maxY(children) { + return 1 + children.reduce(maxYReduce, 0); +} - function leafRight(node) { - var children; - while (children = node.children) node = children[children.length - 1]; - return node; - } +function maxYReduce(y, c) { + return Math.max(y, c.y); +} - function cluster() { - var separation = defaultSeparation, - dx = 1, - dy = 1, - nodeSize = false; +function leafLeft(node) { + var children; + while (children = node.children) node = children[0]; + return node; +} - function cluster(root) { - var previousNode, - x = 0; +function leafRight(node) { + var children; + while (children = node.children) node = children[children.length - 1]; + return node; +} - // First walk, computing the initial x & y values. - root.eachAfter(function(node) { - var children = node.children; - if (children) { - node.x = meanX(children); - node.y = maxY(children); - } else { - node.x = previousNode ? x += separation(node, previousNode) : 0; - node.y = 0; - previousNode = node; - } - }); +var cluster = function() { + var separation = defaultSeparation, + dx = 1, + dy = 1, + nodeSize = false; - var left = leafLeft(root), - right = leafRight(root), - x0 = left.x - separation(left, right) / 2, - x1 = right.x + separation(right, left) / 2; + function cluster(root) { + var previousNode, + x = 0; - // Second walk, normalizing x & y to the desired size. - return root.eachAfter(nodeSize ? function(node) { - node.x = (node.x - root.x) * dx; - node.y = (root.y - node.y) * dy; - } : function(node) { - node.x = (node.x - x0) / (x1 - x0) * dx; - node.y = (1 - (root.y ? node.y / root.y : 1)) * dy; - }); - } + // First walk, computing the initial x & y values. + root.eachAfter(function(node) { + var children = node.children; + if (children) { + node.x = meanX(children); + node.y = maxY(children); + } else { + node.x = previousNode ? x += separation(node, previousNode) : 0; + node.y = 0; + previousNode = node; + } + }); - cluster.separation = function(x) { - return arguments.length ? (separation = x, cluster) : separation; - }; + var left = leafLeft(root), + right = leafRight(root), + x0 = left.x - separation(left, right) / 2, + x1 = right.x + separation(right, left) / 2; - cluster.size = function(x) { - return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? null : [dx, dy]); - }; + // Second walk, normalizing x & y to the desired size. + return root.eachAfter(nodeSize ? function(node) { + node.x = (node.x - root.x) * dx; + node.y = (root.y - node.y) * dy; + } : function(node) { + node.x = (node.x - x0) / (x1 - x0) * dx; + node.y = (1 - (root.y ? node.y / root.y : 1)) * dy; + }); + } - cluster.nodeSize = function(x) { - return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? [dx, dy] : null); - }; + cluster.separation = function(x) { + return arguments.length ? (separation = x, cluster) : separation; + }; - return cluster; - } + cluster.size = function(x) { + return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? null : [dx, dy]); + }; - function node_each(callback) { - var node = this, current, next = [node], children, i, n; - do { - current = next.reverse(), next = []; - while (node = current.pop()) { - callback(node), children = node.children; - if (children) for (i = 0, n = children.length; i < n; ++i) { - next.push(children[i]); - } - } - } while (next.length); - return this; - } + cluster.nodeSize = function(x) { + return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? [dx, dy] : null); + }; - function node_eachBefore(callback) { - var node = this, nodes = [node], children, i; - while (node = nodes.pop()) { + return cluster; +} + +var node_each = function(callback) { + var node = this, current, next = [node], children, i, n; + do { + current = next.reverse(), next = []; + while (node = current.pop()) { callback(node), children = node.children; - if (children) for (i = children.length - 1; i >= 0; --i) { - nodes.push(children[i]); + if (children) for (i = 0, n = children.length; i < n; ++i) { + next.push(children[i]); } } - return this; - } + } while (next.length); + return this; +} - function node_eachAfter(callback) { - var node = this, nodes = [node], next = [], children, i, n; - while (node = nodes.pop()) { - next.push(node), children = node.children; - if (children) for (i = 0, n = children.length; i < n; ++i) { - nodes.push(children[i]); - } +var node_eachBefore = function(callback) { + var node = this, nodes = [node], children, i; + while (node = nodes.pop()) { + callback(node), children = node.children; + if (children) for (i = children.length - 1; i >= 0; --i) { + nodes.push(children[i]); } - while (node = next.pop()) { - callback(node); - } - return this; } + return this; +} - function node_sum(value) { - return this.eachAfter(function(node) { - var sum = +value(node.data) || 0, - children = node.children, - i = children && children.length; - while (--i >= 0) sum += children[i].value; - node.value = sum; - }); +var node_eachAfter = function(callback) { + var node = this, nodes = [node], next = [], children, i, n; + while (node = nodes.pop()) { + next.push(node), children = node.children; + if (children) for (i = 0, n = children.length; i < n; ++i) { + nodes.push(children[i]); + } } - - function node_sort(compare) { - return this.eachBefore(function(node) { - if (node.children) { - node.children.sort(compare); - } - }); + while (node = next.pop()) { + callback(node); } + return this; +} - function node_path(end) { - var start = this, - ancestor = leastCommonAncestor(start, end), - nodes = [start]; - while (start !== ancestor) { - start = start.parent; - nodes.push(start); +var node_sum = function(value) { + return this.eachAfter(function(node) { + var sum = +value(node.data) || 0, + children = node.children, + i = children && children.length; + while (--i >= 0) sum += children[i].value; + node.value = sum; + }); +} + +var node_sort = function(compare) { + return this.eachBefore(function(node) { + if (node.children) { + node.children.sort(compare); } - var k = nodes.length; - while (end !== ancestor) { - nodes.splice(k, 0, end); - end = end.parent; - } - return nodes; + }); +} + +var node_path = function(end) { + var start = this, + ancestor = leastCommonAncestor(start, end), + nodes = [start]; + while (start !== ancestor) { + start = start.parent; + nodes.push(start); } + var k = nodes.length; + while (end !== ancestor) { + nodes.splice(k, 0, end); + end = end.parent; + } + return nodes; +} - function leastCommonAncestor(a, b) { - if (a === b) return a; - var aNodes = a.ancestors(), - bNodes = b.ancestors(), - c = null; +function leastCommonAncestor(a, b) { + if (a === b) return a; + var aNodes = a.ancestors(), + bNodes = b.ancestors(), + c = null; + a = aNodes.pop(); + b = bNodes.pop(); + while (a === b) { + c = a; a = aNodes.pop(); b = bNodes.pop(); - while (a === b) { - c = a; - a = aNodes.pop(); - b = bNodes.pop(); - } - return c; } + return c; +} - function node_ancestors() { - var node = this, nodes = [node]; - while (node = node.parent) { - nodes.push(node); - } - return nodes; +var node_ancestors = function() { + var node = this, nodes = [node]; + while (node = node.parent) { + nodes.push(node); } + return nodes; +} - function node_descendants() { - var nodes = []; - this.each(function(node) { - nodes.push(node); - }); - return nodes; - } +var node_descendants = function() { + var nodes = []; + this.each(function(node) { + nodes.push(node); + }); + return nodes; +} - function node_leaves() { - var leaves = []; - this.eachBefore(function(node) { - if (!node.children) { - leaves.push(node); - } - }); - return leaves; - } +var node_leaves = function() { + var leaves = []; + this.eachBefore(function(node) { + if (!node.children) { + leaves.push(node); + } + }); + return leaves; +} - function node_links() { - var root = this, links = []; - root.each(function(node) { - if (node !== root) { // Don’t include the root’s parent, if any. - links.push({source: node.parent, target: node}); - } - }); - return links; - } +var node_links = function() { + var root = this, links = []; + root.each(function(node) { + if (node !== root) { // Don’t include the root’s parent, if any. + links.push({source: node.parent, target: node}); + } + }); + return links; +} - function hierarchy(data, children) { - var root = new Node(data), - valued = +data.value && (root.value = data.value), - node, - nodes = [root], - child, - childs, - i, - n; +function hierarchy(data, children) { + var root = new Node(data), + valued = +data.value && (root.value = data.value), + node, + nodes = [root], + child, + childs, + i, + n; - if (children == null) children = defaultChildren; + if (children == null) children = defaultChildren; - while (node = nodes.pop()) { - if (valued) node.value = +node.data.value; - if ((childs = children(node.data)) && (n = childs.length)) { - node.children = new Array(n); - for (i = n - 1; i >= 0; --i) { - nodes.push(child = node.children[i] = new Node(childs[i])); - child.parent = node; - child.depth = node.depth + 1; - } + while (node = nodes.pop()) { + if (valued) node.value = +node.data.value; + if ((childs = children(node.data)) && (n = childs.length)) { + node.children = new Array(n); + for (i = n - 1; i >= 0; --i) { + nodes.push(child = node.children[i] = new Node(childs[i])); + child.parent = node; + child.depth = node.depth + 1; } } - - return root.eachBefore(computeHeight); } - function node_copy() { - return hierarchy(this).eachBefore(copyData); - } + return root.eachBefore(computeHeight); +} - function defaultChildren(d) { - return d.children; - } +function node_copy() { + return hierarchy(this).eachBefore(copyData); +} - function copyData(node) { - node.data = node.data.data; - } +function defaultChildren(d) { + return d.children; +} - function computeHeight(node) { - var height = 0; - do node.height = height; - while ((node = node.parent) && (node.height < ++height)); - } +function copyData(node) { + node.data = node.data.data; +} - function Node(data) { - this.data = data; - this.depth = - this.height = 0; - this.parent = null; - } +function computeHeight(node) { + var height = 0; + do node.height = height; + while ((node = node.parent) && (node.height < ++height)); +} - Node.prototype = hierarchy.prototype = { - constructor: Node, - each: node_each, - eachAfter: node_eachAfter, - eachBefore: node_eachBefore, - sum: node_sum, - sort: node_sort, - path: node_path, - ancestors: node_ancestors, - descendants: node_descendants, - leaves: node_leaves, - links: node_links, - copy: node_copy - }; +function Node(data) { + this.data = data; + this.depth = + this.height = 0; + this.parent = null; +} - function Node$2(value) { - this._ = value; - this.next = null; - } +Node.prototype = hierarchy.prototype = { + constructor: Node, + each: node_each, + eachAfter: node_eachAfter, + eachBefore: node_eachBefore, + sum: node_sum, + sort: node_sort, + path: node_path, + ancestors: node_ancestors, + descendants: node_descendants, + leaves: node_leaves, + links: node_links, + copy: node_copy +}; - function shuffle$1(array) { - var i, - n = (array = array.slice()).length, - head = null, - node = head; +function Node$2(value) { + this._ = value; + this.next = null; +} - while (n) { - var next = new Node$2(array[n - 1]); - if (node) node = node.next = next; - else node = head = next; - array[i] = array[--n]; - } +var shuffle$1 = function(array) { + var i, + n = (array = array.slice()).length, + head = null, + node = head; - return { - head: head, - tail: node - }; + while (n) { + var next = new Node$2(array[n - 1]); + if (node) node = node.next = next; + else node = head = next; + array[i] = array[--n]; } - function enclose(circles) { - return encloseN(shuffle$1(circles), []); - } + return { + head: head, + tail: node + }; +} - function encloses(a, b) { - var dx = b.x - a.x, - dy = b.y - a.y, - dr = a.r - b.r; - return dr * dr + 1e-6 > dx * dx + dy * dy; - } +var enclose = function(circles) { + return encloseN(shuffle$1(circles), []); +} - // Returns the smallest circle that contains circles L and intersects circles B. - function encloseN(L, B) { - var circle, - l0 = null, - l1 = L.head, - l2, - p1; +function encloses(a, b) { + var dx = b.x - a.x, + dy = b.y - a.y, + dr = a.r - b.r; + return dr * dr + 1e-6 > dx * dx + dy * dy; +} - switch (B.length) { - case 1: circle = enclose1(B[0]); break; - case 2: circle = enclose2(B[0], B[1]); break; - case 3: circle = enclose3(B[0], B[1], B[2]); break; - } +// Returns the smallest circle that contains circles L and intersects circles B. +function encloseN(L, B) { + var circle, + l0 = null, + l1 = L.head, + l2, + p1; - while (l1) { - p1 = l1._, l2 = l1.next; - if (!circle || !encloses(circle, p1)) { + switch (B.length) { + case 1: circle = enclose1(B[0]); break; + case 2: circle = enclose2(B[0], B[1]); break; + case 3: circle = enclose3(B[0], B[1], B[2]); break; + } - // Temporarily truncate L before l1. - if (l0) L.tail = l0, l0.next = null; - else L.head = L.tail = null; + while (l1) { + p1 = l1._, l2 = l1.next; + if (!circle || !encloses(circle, p1)) { - B.push(p1); - circle = encloseN(L, B); // Note: reorders L! - B.pop(); + // Temporarily truncate L before l1. + if (l0) L.tail = l0, l0.next = null; + else L.head = L.tail = null; - // Move l1 to the front of L and reconnect the truncated list L. - if (L.head) l1.next = L.head, L.head = l1; - else l1.next = null, L.head = L.tail = l1; - l0 = L.tail, l0.next = l2; + B.push(p1); + circle = encloseN(L, B); // Note: reorders L! + B.pop(); - } else { - l0 = l1; - } - l1 = l2; - } + // Move l1 to the front of L and reconnect the truncated list L. + if (L.head) l1.next = L.head, L.head = l1; + else l1.next = null, L.head = L.tail = l1; + l0 = L.tail, l0.next = l2; - L.tail = l0; - return circle; + } else { + l0 = l1; + } + l1 = l2; } - function enclose1(a) { - return { - x: a.x, - y: a.y, - r: a.r - }; - } + L.tail = l0; + return circle; +} - function enclose2(a, b) { - var x1 = a.x, y1 = a.y, r1 = a.r, - x2 = b.x, y2 = b.y, r2 = b.r, - x21 = x2 - x1, y21 = y2 - y1, r21 = r2 - r1, - l = Math.sqrt(x21 * x21 + y21 * y21); - return { - x: (x1 + x2 + x21 / l * r21) / 2, - y: (y1 + y2 + y21 / l * r21) / 2, - r: (l + r1 + r2) / 2 - }; - } +function enclose1(a) { + return { + x: a.x, + y: a.y, + r: a.r + }; +} - function enclose3(a, b, c) { - var x1 = a.x, y1 = a.y, r1 = a.r, - x2 = b.x, y2 = b.y, r2 = b.r, - x3 = c.x, y3 = c.y, r3 = c.r, - a2 = 2 * (x1 - x2), - b2 = 2 * (y1 - y2), - c2 = 2 * (r2 - r1), - d2 = x1 * x1 + y1 * y1 - r1 * r1 - x2 * x2 - y2 * y2 + r2 * r2, - a3 = 2 * (x1 - x3), - b3 = 2 * (y1 - y3), - c3 = 2 * (r3 - r1), - d3 = x1 * x1 + y1 * y1 - r1 * r1 - x3 * x3 - y3 * y3 + r3 * r3, - ab = a3 * b2 - a2 * b3, - xa = (b2 * d3 - b3 * d2) / ab - x1, - xb = (b3 * c2 - b2 * c3) / ab, - ya = (a3 * d2 - a2 * d3) / ab - y1, - yb = (a2 * c3 - a3 * c2) / ab, - A = xb * xb + yb * yb - 1, - B = 2 * (xa * xb + ya * yb + r1), - C = xa * xa + ya * ya - r1 * r1, - r = (-B - Math.sqrt(B * B - 4 * A * C)) / (2 * A); - return { - x: xa + xb * r + x1, - y: ya + yb * r + y1, - r: r - }; - } +function enclose2(a, b) { + var x1 = a.x, y1 = a.y, r1 = a.r, + x2 = b.x, y2 = b.y, r2 = b.r, + x21 = x2 - x1, y21 = y2 - y1, r21 = r2 - r1, + l = Math.sqrt(x21 * x21 + y21 * y21); + return { + x: (x1 + x2 + x21 / l * r21) / 2, + y: (y1 + y2 + y21 / l * r21) / 2, + r: (l + r1 + r2) / 2 + }; +} - function place(a, b, c) { - var ax = a.x, - ay = a.y, - da = b.r + c.r, - db = a.r + c.r, - dx = b.x - ax, - dy = b.y - ay, - dc = dx * dx + dy * dy; - if (dc) { - var x = 0.5 + ((db *= db) - (da *= da)) / (2 * dc), - y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc); - c.x = ax + x * dx + y * dy; - c.y = ay + x * dy - y * dx; - } else { - c.x = ax + db; - c.y = ay; - } - } +function enclose3(a, b, c) { + var x1 = a.x, y1 = a.y, r1 = a.r, + x2 = b.x, y2 = b.y, r2 = b.r, + x3 = c.x, y3 = c.y, r3 = c.r, + a2 = 2 * (x1 - x2), + b2 = 2 * (y1 - y2), + c2 = 2 * (r2 - r1), + d2 = x1 * x1 + y1 * y1 - r1 * r1 - x2 * x2 - y2 * y2 + r2 * r2, + a3 = 2 * (x1 - x3), + b3 = 2 * (y1 - y3), + c3 = 2 * (r3 - r1), + d3 = x1 * x1 + y1 * y1 - r1 * r1 - x3 * x3 - y3 * y3 + r3 * r3, + ab = a3 * b2 - a2 * b3, + xa = (b2 * d3 - b3 * d2) / ab - x1, + xb = (b3 * c2 - b2 * c3) / ab, + ya = (a3 * d2 - a2 * d3) / ab - y1, + yb = (a2 * c3 - a3 * c2) / ab, + A = xb * xb + yb * yb - 1, + B = 2 * (xa * xb + ya * yb + r1), + C = xa * xa + ya * ya - r1 * r1, + r = (-B - Math.sqrt(B * B - 4 * A * C)) / (2 * A); + return { + x: xa + xb * r + x1, + y: ya + yb * r + y1, + r: r + }; +} - function intersects(a, b) { - var dx = b.x - a.x, - dy = b.y - a.y, - dr = a.r + b.r; - return dr * dr > dx * dx + dy * dy; +function place(a, b, c) { + var ax = a.x, + ay = a.y, + da = b.r + c.r, + db = a.r + c.r, + dx = b.x - ax, + dy = b.y - ay, + dc = dx * dx + dy * dy; + if (dc) { + var x = 0.5 + ((db *= db) - (da *= da)) / (2 * dc), + y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc); + c.x = ax + x * dx + y * dy; + c.y = ay + x * dy - y * dx; + } else { + c.x = ax + db; + c.y = ay; } +} - function distance2(circle, x, y) { - var dx = circle.x - x, - dy = circle.y - y; - return dx * dx + dy * dy; - } +function intersects(a, b) { + var dx = b.x - a.x, + dy = b.y - a.y, + dr = a.r + b.r; + return dr * dr > dx * dx + dy * dy; +} - function Node$1(circle) { - this._ = circle; - this.next = null; - this.previous = null; - } +function distance2(circle, x, y) { + var dx = circle.x - x, + dy = circle.y - y; + return dx * dx + dy * dy; +} - function packEnclose(circles) { - if (!(n = circles.length)) return 0; +function Node$1(circle) { + this._ = circle; + this.next = null; + this.previous = null; +} - var a, b, c, n; +function packEnclose(circles) { + if (!(n = circles.length)) return 0; - // Place the first circle. - a = circles[0], a.x = 0, a.y = 0; - if (!(n > 1)) return a.r; + var a, b, c, n; - // Place the second circle. - b = circles[1], a.x = -b.r, b.x = a.r, b.y = 0; - if (!(n > 2)) return a.r + b.r; + // Place the first circle. + a = circles[0], a.x = 0, a.y = 0; + if (!(n > 1)) return a.r; - // Place the third circle. - place(b, a, c = circles[2]); + // Place the second circle. + b = circles[1], a.x = -b.r, b.x = a.r, b.y = 0; + if (!(n > 2)) return a.r + b.r; - // Initialize the weighted centroid. - var aa = a.r * a.r, - ba = b.r * b.r, - ca = c.r * c.r, - oa = aa + ba + ca, - ox = aa * a.x + ba * b.x + ca * c.x, - oy = aa * a.y + ba * b.y + ca * c.y, - cx, cy, i, j, k, sj, sk; + // Place the third circle. + place(b, a, c = circles[2]); - // Initialize the front-chain using the first three circles a, b and c. - a = new Node$1(a), b = new Node$1(b), c = new Node$1(c); - a.next = c.previous = b; - b.next = a.previous = c; - c.next = b.previous = a; + // Initialize the weighted centroid. + var aa = a.r * a.r, + ba = b.r * b.r, + ca = c.r * c.r, + oa = aa + ba + ca, + ox = aa * a.x + ba * b.x + ca * c.x, + oy = aa * a.y + ba * b.y + ca * c.y, + cx, cy, i, j, k, sj, sk; - // Attempt to place each remaining circle… - pack: for (i = 3; i < n; ++i) { - place(a._, b._, c = circles[i]), c = new Node$1(c); + // Initialize the front-chain using the first three circles a, b and c. + a = new Node$1(a), b = new Node$1(b), c = new Node$1(c); + a.next = c.previous = b; + b.next = a.previous = c; + c.next = b.previous = a; - // If there are only three elements in the front-chain… - if ((k = a.previous) === (j = b.next)) { - // If the new circle intersects the third circle, - // rotate the front chain to try the next position. - if (intersects(j._, c._)) { - a = b, b = j, --i; - continue pack; - } + // Attempt to place each remaining circle… + pack: for (i = 3; i < n; ++i) { + place(a._, b._, c = circles[i]), c = new Node$1(c); + + // If there are only three elements in the front-chain… + if ((k = a.previous) === (j = b.next)) { + // If the new circle intersects the third circle, + // rotate the front chain to try the next position. + if (intersects(j._, c._)) { + a = b, b = j, --i; + continue pack; } + } - // Find the closest intersecting circle on the front-chain, if any. - else { - sj = j._.r, sk = k._.r; - do { - if (sj <= sk) { - if (intersects(j._, c._)) { - b = j, a.next = b, b.previous = a, --i; - continue pack; - } - j = j.next, sj += j._.r; - } else { - if (intersects(k._, c._)) { - a = k, a.next = b, b.previous = a, --i; - continue pack; - } - k = k.previous, sk += k._.r; + // Find the closest intersecting circle on the front-chain, if any. + else { + sj = j._.r, sk = k._.r; + do { + if (sj <= sk) { + if (intersects(j._, c._)) { + b = j, a.next = b, b.previous = a, --i; + continue pack; } - } while (j !== k.next); - } + j = j.next, sj += j._.r; + } else { + if (intersects(k._, c._)) { + a = k, a.next = b, b.previous = a, --i; + continue pack; + } + k = k.previous, sk += k._.r; + } + } while (j !== k.next); + } - // Success! Insert the new circle c between a and b. - c.previous = a, c.next = b, a.next = b.previous = b = c; + // Success! Insert the new circle c between a and b. + c.previous = a, c.next = b, a.next = b.previous = b = c; - // Update the weighted centroid. - oa += ca = c._.r * c._.r; - ox += ca * c._.x; - oy += ca * c._.y; + // Update the weighted centroid. + oa += ca = c._.r * c._.r; + ox += ca * c._.x; + oy += ca * c._.y; - // Compute the new closest circle a to centroid. - aa = distance2(a._, cx = ox / oa, cy = oy / oa); - while ((c = c.next) !== b) { - if ((ca = distance2(c._, cx, cy)) < aa) { - a = c, aa = ca; - } + // Compute the new closest circle a to centroid. + aa = distance2(a._, cx = ox / oa, cy = oy / oa); + while ((c = c.next) !== b) { + if ((ca = distance2(c._, cx, cy)) < aa) { + a = c, aa = ca; } - b = a.next; } + b = a.next; + } - // Compute the enclosing circle of the front chain. - a = [b._], c = b; while ((c = c.next) !== b) a.push(c._); c = enclose(a); + // Compute the enclosing circle of the front chain. + a = [b._], c = b; while ((c = c.next) !== b) a.push(c._); c = enclose(a); - // Translate the circles to put the enclosing circle around the origin. - for (i = 0; i < n; ++i) a = circles[i], a.x -= c.x, a.y -= c.y; + // Translate the circles to put the enclosing circle around the origin. + for (i = 0; i < n; ++i) a = circles[i], a.x -= c.x, a.y -= c.y; - return c.r; - } + return c.r; +} - function siblings(circles) { - packEnclose(circles); - return circles; - } +var siblings = function(circles) { + packEnclose(circles); + return circles; +} - function optional(f) { - return f == null ? null : required(f); - } +function optional(f) { + return f == null ? null : required(f); +} - function required(f) { - if (typeof f !== "function") throw new Error; - return f; - } +function required(f) { + if (typeof f !== "function") throw new Error; + return f; +} - function constantZero() { - return 0; - } +function constantZero() { + return 0; +} - function constant$5(x) { - return function() { - return x; - }; - } +var constant$6 = function(x) { + return function() { + return x; + }; +} - function defaultRadius(d) { - return Math.sqrt(d.value); +function defaultRadius(d) { + return Math.sqrt(d.value); +} + +var index = function() { + var radius = null, + dx = 1, + dy = 1, + padding = constantZero; + + function pack(root) { + root.x = dx / 2, root.y = dy / 2; + if (radius) { + root.eachBefore(radiusLeaf(radius)) + .eachAfter(packChildren(padding, 0.5)) + .eachBefore(translateChild(1)); + } else { + root.eachBefore(radiusLeaf(defaultRadius)) + .eachAfter(packChildren(constantZero, 1)) + .eachAfter(packChildren(padding, root.r / Math.min(dx, dy))) + .eachBefore(translateChild(Math.min(dx, dy) / (2 * root.r))); + } + return root; } - function index() { - var radius = null, - dx = 1, - dy = 1, - padding = constantZero; + pack.radius = function(x) { + return arguments.length ? (radius = optional(x), pack) : radius; + }; - function pack(root) { - root.x = dx / 2, root.y = dy / 2; - if (radius) { - root.eachBefore(radiusLeaf(radius)) - .eachAfter(packChildren(padding, 0.5)) - .eachBefore(translateChild(1)); - } else { - root.eachBefore(radiusLeaf(defaultRadius)) - .eachAfter(packChildren(constantZero, 1)) - .eachAfter(packChildren(padding, root.r / Math.min(dx, dy))) - .eachBefore(translateChild(Math.min(dx, dy) / (2 * root.r))); - } - return root; + pack.size = function(x) { + return arguments.length ? (dx = +x[0], dy = +x[1], pack) : [dx, dy]; + }; + + pack.padding = function(x) { + return arguments.length ? (padding = typeof x === "function" ? x : constant$6(+x), pack) : padding; + }; + + return pack; +} + +function radiusLeaf(radius) { + return function(node) { + if (!node.children) { + node.r = Math.max(0, +radius(node) || 0); } + }; +} - pack.radius = function(x) { - return arguments.length ? (radius = optional(x), pack) : radius; - }; +function packChildren(padding, k) { + return function(node) { + if (children = node.children) { + var children, + i, + n = children.length, + r = padding(node) * k || 0, + e; - pack.size = function(x) { - return arguments.length ? (dx = +x[0], dy = +x[1], pack) : [dx, dy]; - }; + if (r) for (i = 0; i < n; ++i) children[i].r += r; + e = packEnclose(children); + if (r) for (i = 0; i < n; ++i) children[i].r -= r; + node.r = e + r; + } + }; +} - pack.padding = function(x) { - return arguments.length ? (padding = typeof x === "function" ? x : constant$5(+x), pack) : padding; - }; +function translateChild(k) { + return function(node) { + var parent = node.parent; + node.r *= k; + if (parent) { + node.x = parent.x + k * node.x; + node.y = parent.y + k * node.y; + } + }; +} - return pack; - } +var roundNode = function(node) { + node.x0 = Math.round(node.x0); + node.y0 = Math.round(node.y0); + node.x1 = Math.round(node.x1); + node.y1 = Math.round(node.y1); +} - function radiusLeaf(radius) { - return function(node) { - if (!node.children) { - node.r = Math.max(0, +radius(node) || 0); - } - }; +var treemapDice = function(parent, x0, y0, x1, y1) { + var nodes = parent.children, + node, + i = -1, + n = nodes.length, + k = parent.value && (x1 - x0) / parent.value; + + while (++i < n) { + node = nodes[i], node.y0 = y0, node.y1 = y1; + node.x0 = x0, node.x1 = x0 += node.value * k; } +} - function packChildren(padding, k) { - return function(node) { - if (children = node.children) { - var children, - i, - n = children.length, - r = padding(node) * k || 0, - e; +var partition = function() { + var dx = 1, + dy = 1, + padding = 0, + round = false; - if (r) for (i = 0; i < n; ++i) children[i].r += r; - e = packEnclose(children); - if (r) for (i = 0; i < n; ++i) children[i].r -= r; - node.r = e + r; - } - }; + function partition(root) { + var n = root.height + 1; + root.x0 = + root.y0 = padding; + root.x1 = dx; + root.y1 = dy / n; + root.eachBefore(positionNode(dy, n)); + if (round) root.eachBefore(roundNode); + return root; } - function translateChild(k) { + function positionNode(dy, n) { return function(node) { - var parent = node.parent; - node.r *= k; - if (parent) { - node.x = parent.x + k * node.x; - node.y = parent.y + k * node.y; + if (node.children) { + treemapDice(node, node.x0, dy * (node.depth + 1) / n, node.x1, dy * (node.depth + 2) / n); } + var x0 = node.x0, + y0 = node.y0, + x1 = node.x1 - padding, + y1 = node.y1 - padding; + if (x1 < x0) x0 = x1 = (x0 + x1) / 2; + if (y1 < y0) y0 = y1 = (y0 + y1) / 2; + node.x0 = x0; + node.y0 = y0; + node.x1 = x1; + node.y1 = y1; }; } - function roundNode(node) { - node.x0 = Math.round(node.x0); - node.y0 = Math.round(node.y0); - node.x1 = Math.round(node.x1); - node.y1 = Math.round(node.y1); - } + partition.round = function(x) { + return arguments.length ? (round = !!x, partition) : round; + }; - function treemapDice(parent, x0, y0, x1, y1) { - var nodes = parent.children, - node, - i = -1, - n = nodes.length, - k = parent.value && (x1 - x0) / parent.value; + partition.size = function(x) { + return arguments.length ? (dx = +x[0], dy = +x[1], partition) : [dx, dy]; + }; - while (++i < n) { - node = nodes[i], node.y0 = y0, node.y1 = y1; - node.x0 = x0, node.x1 = x0 += node.value * k; - } - } + partition.padding = function(x) { + return arguments.length ? (padding = +x, partition) : padding; + }; - function partition() { - var dx = 1, - dy = 1, - padding = 0, - round = false; + return partition; +} - function partition(root) { - var n = root.height + 1; - root.x0 = - root.y0 = padding; - root.x1 = dx; - root.y1 = dy / n; - root.eachBefore(positionNode(dy, n)); - if (round) root.eachBefore(roundNode); - return root; - } +var keyPrefix$1 = "$"; +var preroot = {depth: -1}; +var ambiguous = {}; - function positionNode(dy, n) { - return function(node) { - if (node.children) { - treemapDice(node, node.x0, dy * (node.depth + 1) / n, node.x1, dy * (node.depth + 2) / n); - } - var x0 = node.x0, - y0 = node.y0, - x1 = node.x1 - padding, - y1 = node.y1 - padding; - if (x1 < x0) x0 = x1 = (x0 + x1) / 2; - if (y1 < y0) y0 = y1 = (y0 + y1) / 2; - node.x0 = x0; - node.y0 = y0; - node.x1 = x1; - node.y1 = y1; - }; - } +function defaultId(d) { + return d.id; +} - partition.round = function(x) { - return arguments.length ? (round = !!x, partition) : round; - }; +function defaultParentId(d) { + return d.parentId; +} - partition.size = function(x) { - return arguments.length ? (dx = +x[0], dy = +x[1], partition) : [dx, dy]; - }; +var stratify = function() { + var id = defaultId, + parentId = defaultParentId; - partition.padding = function(x) { - return arguments.length ? (padding = +x, partition) : padding; - }; + function stratify(data) { + var d, + i, + n = data.length, + root, + parent, + node, + nodes = new Array(n), + nodeId, + nodeKey, + nodeByKey = {}; - return partition; - } - -var keyPrefix$1 = "$"; - var preroot = {depth: -1}; - var ambiguous = {}; - function defaultId(d) { - return d.id; - } - - function defaultParentId(d) { - return d.parentId; - } - - function stratify() { - var id = defaultId, - parentId = defaultParentId; - - function stratify(data) { - var d, - i, - n = data.length, - root, - parent, - node, - nodes = new Array(n), - nodeId, - nodeKey, - nodeByKey = {}; - - for (i = 0; i < n; ++i) { - d = data[i], node = nodes[i] = new Node(d); - if ((nodeId = id(d, i, data)) != null && (nodeId += "")) { - nodeKey = keyPrefix$1 + (node.id = nodeId); - nodeByKey[nodeKey] = nodeKey in nodeByKey ? ambiguous : node; - } + for (i = 0; i < n; ++i) { + d = data[i], node = nodes[i] = new Node(d); + if ((nodeId = id(d, i, data)) != null && (nodeId += "")) { + nodeKey = keyPrefix$1 + (node.id = nodeId); + nodeByKey[nodeKey] = nodeKey in nodeByKey ? ambiguous : node; } + } - for (i = 0; i < n; ++i) { - node = nodes[i], nodeId = parentId(data[i], i, data); - if (nodeId == null || !(nodeId += "")) { - if (root) throw new Error("multiple roots"); - root = node; - } else { - parent = nodeByKey[keyPrefix$1 + nodeId]; - if (!parent) throw new Error("missing: " + nodeId); - if (parent === ambiguous) throw new Error("ambiguous: " + nodeId); - if (parent.children) parent.children.push(node); - else parent.children = [node]; - node.parent = parent; - } + for (i = 0; i < n; ++i) { + node = nodes[i], nodeId = parentId(data[i], i, data); + if (nodeId == null || !(nodeId += "")) { + if (root) throw new Error("multiple roots"); + root = node; + } else { + parent = nodeByKey[keyPrefix$1 + nodeId]; + if (!parent) throw new Error("missing: " + nodeId); + if (parent === ambiguous) throw new Error("ambiguous: " + nodeId); + if (parent.children) parent.children.push(node); + else parent.children = [node]; + node.parent = parent; } + } - if (!root) throw new Error("no root"); - root.parent = preroot; - root.eachBefore(function(node) { node.depth = node.parent.depth + 1; --n; }).eachBefore(computeHeight); - root.parent = null; - if (n > 0) throw new Error("cycle"); + if (!root) throw new Error("no root"); + root.parent = preroot; + root.eachBefore(function(node) { node.depth = node.parent.depth + 1; --n; }).eachBefore(computeHeight); + root.parent = null; + if (n > 0) throw new Error("cycle"); - return root; - } + return root; + } - stratify.id = function(x) { - return arguments.length ? (id = required(x), stratify) : id; - }; + stratify.id = function(x) { + return arguments.length ? (id = required(x), stratify) : id; + }; - stratify.parentId = function(x) { - return arguments.length ? (parentId = required(x), stratify) : parentId; - }; + stratify.parentId = function(x) { + return arguments.length ? (parentId = required(x), stratify) : parentId; + }; - return stratify; - } + return stratify; +} - function defaultSeparation$1(a, b) { - return a.parent === b.parent ? 1 : 2; - } +function defaultSeparation$1(a, b) { + return a.parent === b.parent ? 1 : 2; +} - // function radialSeparation(a, b) { - // return (a.parent === b.parent ? 1 : 2) / a.depth; - // } +// function radialSeparation(a, b) { +// return (a.parent === b.parent ? 1 : 2) / a.depth; +// } - // This function is used to traverse the left contour of a subtree (or - // subforest). It returns the successor of v on this contour. This successor is - // either given by the leftmost child of v or by the thread of v. The function - // returns null if and only if v is on the highest level of its subtree. - function nextLeft(v) { - var children = v.children; - return children ? children[0] : v.t; - } +// This function is used to traverse the left contour of a subtree (or +// subforest). It returns the successor of v on this contour. This successor is +// either given by the leftmost child of v or by the thread of v. The function +// returns null if and only if v is on the highest level of its subtree. +function nextLeft(v) { + var children = v.children; + return children ? children[0] : v.t; +} - // This function works analogously to nextLeft. - function nextRight(v) { - var children = v.children; - return children ? children[children.length - 1] : v.t; - } +// This function works analogously to nextLeft. +function nextRight(v) { + var children = v.children; + return children ? children[children.length - 1] : v.t; +} - // Shifts the current subtree rooted at w+. This is done by increasing - // prelim(w+) and mod(w+) by shift. - function moveSubtree(wm, wp, shift) { - var change = shift / (wp.i - wm.i); - wp.c -= change; - wp.s += shift; - wm.c += change; - wp.z += shift; - wp.m += shift; - } +// Shifts the current subtree rooted at w+. This is done by increasing +// prelim(w+) and mod(w+) by shift. +function moveSubtree(wm, wp, shift) { + var change = shift / (wp.i - wm.i); + wp.c -= change; + wp.s += shift; + wm.c += change; + wp.z += shift; + wp.m += shift; +} - // All other shifts, applied to the smaller subtrees between w- and w+, are - // performed by this function. To prepare the shifts, we have to adjust - // change(w+), shift(w+), and change(w-). - function executeShifts(v) { - var shift = 0, - change = 0, - children = v.children, - i = children.length, - w; - while (--i >= 0) { - w = children[i]; - w.z += shift; - w.m += shift; - shift += w.s + (change += w.c); - } +// All other shifts, applied to the smaller subtrees between w- and w+, are +// performed by this function. To prepare the shifts, we have to adjust +// change(w+), shift(w+), and change(w-). +function executeShifts(v) { + var shift = 0, + change = 0, + children = v.children, + i = children.length, + w; + while (--i >= 0) { + w = children[i]; + w.z += shift; + w.m += shift; + shift += w.s + (change += w.c); } +} - // If vi-’s ancestor is a sibling of v, returns vi-’s ancestor. Otherwise, - // returns the specified (default) ancestor. - function nextAncestor(vim, v, ancestor) { - return vim.a.parent === v.parent ? vim.a : ancestor; - } +// If vi-’s ancestor is a sibling of v, returns vi-’s ancestor. Otherwise, +// returns the specified (default) ancestor. +function nextAncestor(vim, v, ancestor) { + return vim.a.parent === v.parent ? vim.a : ancestor; +} - function TreeNode(node, i) { - this._ = node; - this.parent = null; - this.children = null; - this.A = null; // default ancestor - this.a = this; // ancestor - this.z = 0; // prelim - this.m = 0; // mod - this.c = 0; // change - this.s = 0; // shift - this.t = null; // thread - this.i = i; // number - } +function TreeNode(node, i) { + this._ = node; + this.parent = null; + this.children = null; + this.A = null; // default ancestor + this.a = this; // ancestor + this.z = 0; // prelim + this.m = 0; // mod + this.c = 0; // change + this.s = 0; // shift + this.t = null; // thread + this.i = i; // number +} - TreeNode.prototype = Object.create(Node.prototype); +TreeNode.prototype = Object.create(Node.prototype); - function treeRoot(root) { - var tree = new TreeNode(root, 0), - node, - nodes = [tree], - child, - children, - i, - n; +function treeRoot(root) { + var tree = new TreeNode(root, 0), + node, + nodes = [tree], + child, + children, + i, + n; - while (node = nodes.pop()) { - if (children = node._.children) { - node.children = new Array(n = children.length); - for (i = n - 1; i >= 0; --i) { - nodes.push(child = node.children[i] = new TreeNode(children[i], i)); - child.parent = node; - } + while (node = nodes.pop()) { + if (children = node._.children) { + node.children = new Array(n = children.length); + for (i = n - 1; i >= 0; --i) { + nodes.push(child = node.children[i] = new TreeNode(children[i], i)); + child.parent = node; } } - - (tree.parent = new TreeNode(null, 0)).children = [tree]; - return tree; } - // Node-link tree diagram using the Reingold-Tilford "tidy" algorithm - function tree() { - var separation = defaultSeparation$1, - dx = 1, - dy = 1, - nodeSize = null; + (tree.parent = new TreeNode(null, 0)).children = [tree]; + return tree; +} - function tree(root) { - var t = treeRoot(root); +// Node-link tree diagram using the Reingold-Tilford "tidy" algorithm +var tree = function() { + var separation = defaultSeparation$1, + dx = 1, + dy = 1, + nodeSize = null; - // Compute the layout using Buchheim et al.’s algorithm. - t.eachAfter(firstWalk), t.parent.m = -t.z; - t.eachBefore(secondWalk); + function tree(root) { + var t = treeRoot(root); - // If a fixed node size is specified, scale x and y. - if (nodeSize) root.eachBefore(sizeNode); + // Compute the layout using Buchheim et al.’s algorithm. + t.eachAfter(firstWalk), t.parent.m = -t.z; + t.eachBefore(secondWalk); - // If a fixed tree size is specified, scale x and y based on the extent. - // Compute the left-most, right-most, and depth-most nodes for extents. - else { - var left = root, - right = root, - bottom = root; - root.eachBefore(function(node) { - if (node.x < left.x) left = node; - if (node.x > right.x) right = node; - if (node.depth > bottom.depth) bottom = node; - }); - var s = left === right ? 1 : separation(left, right) / 2, - tx = s - left.x, - kx = dx / (right.x + s + tx), - ky = dy / (bottom.depth || 1); - root.eachBefore(function(node) { - node.x = (node.x + tx) * kx; - node.y = node.depth * ky; - }); - } + // If a fixed node size is specified, scale x and y. + if (nodeSize) root.eachBefore(sizeNode); - return root; + // If a fixed tree size is specified, scale x and y based on the extent. + // Compute the left-most, right-most, and depth-most nodes for extents. + else { + var left = root, + right = root, + bottom = root; + root.eachBefore(function(node) { + if (node.x < left.x) left = node; + if (node.x > right.x) right = node; + if (node.depth > bottom.depth) bottom = node; + }); + var s = left === right ? 1 : separation(left, right) / 2, + tx = s - left.x, + kx = dx / (right.x + s + tx), + ky = dy / (bottom.depth || 1); + root.eachBefore(function(node) { + node.x = (node.x + tx) * kx; + node.y = node.depth * ky; + }); } - // Computes a preliminary x-coordinate for v. Before that, FIRST WALK is - // applied recursively to the children of v, as well as the function - // APPORTION. After spacing out the children by calling EXECUTE SHIFTS, the - // node v is placed to the midpoint of its outermost children. - function firstWalk(v) { - var children = v.children, - siblings = v.parent.children, - w = v.i ? siblings[v.i - 1] : null; - if (children) { - executeShifts(v); - var midpoint = (children[0].z + children[children.length - 1].z) / 2; - if (w) { - v.z = w.z + separation(v._, w._); - v.m = v.z - midpoint; - } else { - v.z = midpoint; - } - } else if (w) { + return root; + } + + // Computes a preliminary x-coordinate for v. Before that, FIRST WALK is + // applied recursively to the children of v, as well as the function + // APPORTION. After spacing out the children by calling EXECUTE SHIFTS, the + // node v is placed to the midpoint of its outermost children. + function firstWalk(v) { + var children = v.children, + siblings = v.parent.children, + w = v.i ? siblings[v.i - 1] : null; + if (children) { + executeShifts(v); + var midpoint = (children[0].z + children[children.length - 1].z) / 2; + if (w) { v.z = w.z + separation(v._, w._); + v.m = v.z - midpoint; + } else { + v.z = midpoint; } - v.parent.A = apportion(v, w, v.parent.A || siblings[0]); + } else if (w) { + v.z = w.z + separation(v._, w._); } + v.parent.A = apportion(v, w, v.parent.A || siblings[0]); + } - // Computes all real x-coordinates by summing up the modifiers recursively. - function secondWalk(v) { - v._.x = v.z + v.parent.m; - v.m += v.parent.m; - } + // Computes all real x-coordinates by summing up the modifiers recursively. + function secondWalk(v) { + v._.x = v.z + v.parent.m; + v.m += v.parent.m; + } - // The core of the algorithm. Here, a new subtree is combined with the - // previous subtrees. Threads are used to traverse the inside and outside - // contours of the left and right subtree up to the highest common level. The - // vertices used for the traversals are vi+, vi-, vo-, and vo+, where the - // superscript o means outside and i means inside, the subscript - means left - // subtree and + means right subtree. For summing up the modifiers along the - // contour, we use respective variables si+, si-, so-, and so+. Whenever two - // nodes of the inside contours conflict, we compute the left one of the - // greatest uncommon ancestors using the function ANCESTOR and call MOVE - // SUBTREE to shift the subtree and prepare the shifts of smaller subtrees. - // Finally, we add a new thread (if necessary). - function apportion(v, w, ancestor) { - if (w) { - var vip = v, - vop = v, - vim = w, - vom = vip.parent.children[0], - sip = vip.m, - sop = vop.m, - sim = vim.m, - som = vom.m, - shift; - while (vim = nextRight(vim), vip = nextLeft(vip), vim && vip) { - vom = nextLeft(vom); - vop = nextRight(vop); - vop.a = v; - shift = vim.z + sim - vip.z - sip + separation(vim._, vip._); - if (shift > 0) { - moveSubtree(nextAncestor(vim, v, ancestor), v, shift); - sip += shift; - sop += shift; - } - sim += vim.m; - sip += vip.m; - som += vom.m; - sop += vop.m; + // The core of the algorithm. Here, a new subtree is combined with the + // previous subtrees. Threads are used to traverse the inside and outside + // contours of the left and right subtree up to the highest common level. The + // vertices used for the traversals are vi+, vi-, vo-, and vo+, where the + // superscript o means outside and i means inside, the subscript - means left + // subtree and + means right subtree. For summing up the modifiers along the + // contour, we use respective variables si+, si-, so-, and so+. Whenever two + // nodes of the inside contours conflict, we compute the left one of the + // greatest uncommon ancestors using the function ANCESTOR and call MOVE + // SUBTREE to shift the subtree and prepare the shifts of smaller subtrees. + // Finally, we add a new thread (if necessary). + function apportion(v, w, ancestor) { + if (w) { + var vip = v, + vop = v, + vim = w, + vom = vip.parent.children[0], + sip = vip.m, + sop = vop.m, + sim = vim.m, + som = vom.m, + shift; + while (vim = nextRight(vim), vip = nextLeft(vip), vim && vip) { + vom = nextLeft(vom); + vop = nextRight(vop); + vop.a = v; + shift = vim.z + sim - vip.z - sip + separation(vim._, vip._); + if (shift > 0) { + moveSubtree(nextAncestor(vim, v, ancestor), v, shift); + sip += shift; + sop += shift; } - if (vim && !nextRight(vop)) { - vop.t = vim; - vop.m += sim - sop; - } - if (vip && !nextLeft(vom)) { - vom.t = vip; - vom.m += sip - som; - ancestor = v; - } + sim += vim.m; + sip += vip.m; + som += vom.m; + sop += vop.m; } - return ancestor; + if (vim && !nextRight(vop)) { + vop.t = vim; + vop.m += sim - sop; + } + if (vip && !nextLeft(vom)) { + vom.t = vip; + vom.m += sip - som; + ancestor = v; + } } + return ancestor; + } - function sizeNode(node) { - node.x *= dx; - node.y = node.depth * dy; - } + function sizeNode(node) { + node.x *= dx; + node.y = node.depth * dy; + } - tree.separation = function(x) { - return arguments.length ? (separation = x, tree) : separation; - }; + tree.separation = function(x) { + return arguments.length ? (separation = x, tree) : separation; + }; - tree.size = function(x) { - return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], tree) : (nodeSize ? null : [dx, dy]); - }; + tree.size = function(x) { + return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], tree) : (nodeSize ? null : [dx, dy]); + }; - tree.nodeSize = function(x) { - return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], tree) : (nodeSize ? [dx, dy] : null); - }; + tree.nodeSize = function(x) { + return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], tree) : (nodeSize ? [dx, dy] : null); + }; - return tree; - } + return tree; +} - function treemapSlice(parent, x0, y0, x1, y1) { - var nodes = parent.children, - node, - i = -1, - n = nodes.length, - k = parent.value && (y1 - y0) / parent.value; +var treemapSlice = function(parent, x0, y0, x1, y1) { + var nodes = parent.children, + node, + i = -1, + n = nodes.length, + k = parent.value && (y1 - y0) / parent.value; - while (++i < n) { - node = nodes[i], node.x0 = x0, node.x1 = x1; - node.y0 = y0, node.y1 = y0 += node.value * k; - } + while (++i < n) { + node = nodes[i], node.x0 = x0, node.x1 = x1; + node.y0 = y0, node.y1 = y0 += node.value * k; } +} - var phi = (1 + Math.sqrt(5)) / 2; +var phi = (1 + Math.sqrt(5)) / 2; - function squarifyRatio(ratio, parent, x0, y0, x1, y1) { - var rows = [], - nodes = parent.children, - row, - nodeValue, - i0 = 0, - i1, - n = nodes.length, - dx, dy, - value = parent.value, - sumValue, - minValue, - maxValue, - newRatio, - minRatio, - alpha, - beta; +function squarifyRatio(ratio, parent, x0, y0, x1, y1) { + var rows = [], + nodes = parent.children, + row, + nodeValue, + i0 = 0, + i1, + n = nodes.length, + dx, dy, + value = parent.value, + sumValue, + minValue, + maxValue, + newRatio, + minRatio, + alpha, + beta; - while (i0 < n) { - dx = x1 - x0, dy = y1 - y0; - minValue = maxValue = sumValue = nodes[i0].value; - alpha = Math.max(dy / dx, dx / dy) / (value * ratio); - beta = sumValue * sumValue * alpha; - minRatio = Math.max(maxValue / beta, beta / minValue); + while (i0 < n) { + dx = x1 - x0, dy = y1 - y0; + minValue = maxValue = sumValue = nodes[i0].value; + alpha = Math.max(dy / dx, dx / dy) / (value * ratio); + beta = sumValue * sumValue * alpha; + minRatio = Math.max(maxValue / beta, beta / minValue); - // Keep adding nodes while the aspect ratio maintains or improves. - for (i1 = i0 + 1; i1 < n; ++i1) { - sumValue += nodeValue = nodes[i1].value; - if (nodeValue < minValue) minValue = nodeValue; - if (nodeValue > maxValue) maxValue = nodeValue; - beta = sumValue * sumValue * alpha; - newRatio = Math.max(maxValue / beta, beta / minValue); - if (newRatio > minRatio) { sumValue -= nodeValue; break; } - minRatio = newRatio; - } - - // Position and record the row orientation. - rows.push(row = {value: sumValue, dice: dx < dy, children: nodes.slice(i0, i1)}); - if (row.dice) treemapDice(row, x0, y0, x1, value ? y0 += dy * sumValue / value : y1); - else treemapSlice(row, x0, y0, value ? x0 += dx * sumValue / value : x1, y1); - value -= sumValue, i0 = i1; + // Keep adding nodes while the aspect ratio maintains or improves. + for (i1 = i0 + 1; i1 < n; ++i1) { + sumValue += nodeValue = nodes[i1].value; + if (nodeValue < minValue) minValue = nodeValue; + if (nodeValue > maxValue) maxValue = nodeValue; + beta = sumValue * sumValue * alpha; + newRatio = Math.max(maxValue / beta, beta / minValue); + if (newRatio > minRatio) { sumValue -= nodeValue; break; } + minRatio = newRatio; } - return rows; + // Position and record the row orientation. + rows.push(row = {value: sumValue, dice: dx < dy, children: nodes.slice(i0, i1)}); + if (row.dice) treemapDice(row, x0, y0, x1, value ? y0 += dy * sumValue / value : y1); + else treemapSlice(row, x0, y0, value ? x0 += dx * sumValue / value : x1, y1); + value -= sumValue, i0 = i1; } - var squarify = (function custom(ratio) { + return rows; +} - function squarify(parent, x0, y0, x1, y1) { - squarifyRatio(ratio, parent, x0, y0, x1, y1); - } +var squarify = (function custom(ratio) { - squarify.ratio = function(x) { - return custom((x = +x) > 1 ? x : 1); - }; + function squarify(parent, x0, y0, x1, y1) { + squarifyRatio(ratio, parent, x0, y0, x1, y1); + } - return squarify; - })(phi); + squarify.ratio = function(x) { + return custom((x = +x) > 1 ? x : 1); + }; - function index$1() { - var tile = squarify, - round = false, - dx = 1, - dy = 1, - paddingStack = [0], - paddingInner = constantZero, - paddingTop = constantZero, - paddingRight = constantZero, - paddingBottom = constantZero, - paddingLeft = constantZero; + return squarify; +})(phi); - function treemap(root) { - root.x0 = - root.y0 = 0; - root.x1 = dx; - root.y1 = dy; - root.eachBefore(positionNode); - paddingStack = [0]; - if (round) root.eachBefore(roundNode); - return root; - } +var index$1 = function() { + var tile = squarify, + round = false, + dx = 1, + dy = 1, + paddingStack = [0], + paddingInner = constantZero, + paddingTop = constantZero, + paddingRight = constantZero, + paddingBottom = constantZero, + paddingLeft = constantZero; - function positionNode(node) { - var p = paddingStack[node.depth], - x0 = node.x0 + p, - y0 = node.y0 + p, - x1 = node.x1 - p, - y1 = node.y1 - p; + function treemap(root) { + root.x0 = + root.y0 = 0; + root.x1 = dx; + root.y1 = dy; + root.eachBefore(positionNode); + paddingStack = [0]; + if (round) root.eachBefore(roundNode); + return root; + } + + function positionNode(node) { + var p = paddingStack[node.depth], + x0 = node.x0 + p, + y0 = node.y0 + p, + x1 = node.x1 - p, + y1 = node.y1 - p; + if (x1 < x0) x0 = x1 = (x0 + x1) / 2; + if (y1 < y0) y0 = y1 = (y0 + y1) / 2; + node.x0 = x0; + node.y0 = y0; + node.x1 = x1; + node.y1 = y1; + if (node.children) { + p = paddingStack[node.depth + 1] = paddingInner(node) / 2; + x0 += paddingLeft(node) - p; + y0 += paddingTop(node) - p; + x1 -= paddingRight(node) - p; + y1 -= paddingBottom(node) - p; if (x1 < x0) x0 = x1 = (x0 + x1) / 2; if (y1 < y0) y0 = y1 = (y0 + y1) / 2; - node.x0 = x0; - node.y0 = y0; - node.x1 = x1; - node.y1 = y1; - if (node.children) { - p = paddingStack[node.depth + 1] = paddingInner(node) / 2; - x0 += paddingLeft(node) - p; - y0 += paddingTop(node) - p; - x1 -= paddingRight(node) - p; - y1 -= paddingBottom(node) - p; - if (x1 < x0) x0 = x1 = (x0 + x1) / 2; - if (y1 < y0) y0 = y1 = (y0 + y1) / 2; - tile(node, x0, y0, x1, y1); - } + tile(node, x0, y0, x1, y1); } + } - treemap.round = function(x) { - return arguments.length ? (round = !!x, treemap) : round; - }; + treemap.round = function(x) { + return arguments.length ? (round = !!x, treemap) : round; + }; - treemap.size = function(x) { - return arguments.length ? (dx = +x[0], dy = +x[1], treemap) : [dx, dy]; - }; + treemap.size = function(x) { + return arguments.length ? (dx = +x[0], dy = +x[1], treemap) : [dx, dy]; + }; - treemap.tile = function(x) { - return arguments.length ? (tile = required(x), treemap) : tile; - }; + treemap.tile = function(x) { + return arguments.length ? (tile = required(x), treemap) : tile; + }; - treemap.padding = function(x) { - return arguments.length ? treemap.paddingInner(x).paddingOuter(x) : treemap.paddingInner(); - }; + treemap.padding = function(x) { + return arguments.length ? treemap.paddingInner(x).paddingOuter(x) : treemap.paddingInner(); + }; - treemap.paddingInner = function(x) { - return arguments.length ? (paddingInner = typeof x === "function" ? x : constant$5(+x), treemap) : paddingInner; - }; + treemap.paddingInner = function(x) { + return arguments.length ? (paddingInner = typeof x === "function" ? x : constant$6(+x), treemap) : paddingInner; + }; - treemap.paddingOuter = function(x) { - return arguments.length ? treemap.paddingTop(x).paddingRight(x).paddingBottom(x).paddingLeft(x) : treemap.paddingTop(); - }; + treemap.paddingOuter = function(x) { + return arguments.length ? treemap.paddingTop(x).paddingRight(x).paddingBottom(x).paddingLeft(x) : treemap.paddingTop(); + }; - treemap.paddingTop = function(x) { - return arguments.length ? (paddingTop = typeof x === "function" ? x : constant$5(+x), treemap) : paddingTop; - }; + treemap.paddingTop = function(x) { + return arguments.length ? (paddingTop = typeof x === "function" ? x : constant$6(+x), treemap) : paddingTop; + }; - treemap.paddingRight = function(x) { - return arguments.length ? (paddingRight = typeof x === "function" ? x : constant$5(+x), treemap) : paddingRight; - }; + treemap.paddingRight = function(x) { + return arguments.length ? (paddingRight = typeof x === "function" ? x : constant$6(+x), treemap) : paddingRight; + }; - treemap.paddingBottom = function(x) { - return arguments.length ? (paddingBottom = typeof x === "function" ? x : constant$5(+x), treemap) : paddingBottom; - }; + treemap.paddingBottom = function(x) { + return arguments.length ? (paddingBottom = typeof x === "function" ? x : constant$6(+x), treemap) : paddingBottom; + }; - treemap.paddingLeft = function(x) { - return arguments.length ? (paddingLeft = typeof x === "function" ? x : constant$5(+x), treemap) : paddingLeft; - }; + treemap.paddingLeft = function(x) { + return arguments.length ? (paddingLeft = typeof x === "function" ? x : constant$6(+x), treemap) : paddingLeft; + }; - return treemap; + return treemap; +} + +var binary = function(parent, x0, y0, x1, y1) { + var nodes = parent.children, + i, n = nodes.length, + sum, sums = new Array(n + 1); + + for (sums[0] = sum = i = 0; i < n; ++i) { + sums[i + 1] = sum += nodes[i].value; } - function binary(parent, x0, y0, x1, y1) { - var nodes = parent.children, - i, n = nodes.length, - sum, sums = new Array(n + 1); + partition(0, n, parent.value, x0, y0, x1, y1); - for (sums[0] = sum = i = 0; i < n; ++i) { - sums[i + 1] = sum += nodes[i].value; + function partition(i, j, value, x0, y0, x1, y1) { + if (i >= j - 1) { + var node = nodes[i]; + node.x0 = x0, node.y0 = y0; + node.x1 = x1, node.y1 = y1; + return; } - partition(0, n, parent.value, x0, y0, x1, y1); + var valueOffset = sums[i], + valueTarget = (value / 2) + valueOffset, + k = i + 1, + hi = j - 1; - function partition(i, j, value, x0, y0, x1, y1) { - if (i >= j - 1) { - var node = nodes[i]; - node.x0 = x0, node.y0 = y0; - node.x1 = x1, node.y1 = y1; - return; - } + while (k < hi) { + var mid = k + hi >>> 1; + if (sums[mid] < valueTarget) k = mid + 1; + else hi = mid; + } - var valueOffset = sums[i], - valueTarget = (value / 2) + valueOffset, - k = i + 1, - hi = j - 1; + var valueLeft = sums[k] - valueOffset, + valueRight = value - valueLeft; - while (k < hi) { - var mid = k + hi >>> 1; - if (sums[mid] < valueTarget) k = mid + 1; - else hi = mid; - } - - var valueLeft = sums[k] - valueOffset, - valueRight = value - valueLeft; - - if ((y1 - y0) > (x1 - x0)) { - var yk = (y0 * valueRight + y1 * valueLeft) / value; - partition(i, k, valueLeft, x0, y0, x1, yk); - partition(k, j, valueRight, x0, yk, x1, y1); - } else { - var xk = (x0 * valueRight + x1 * valueLeft) / value; - partition(i, k, valueLeft, x0, y0, xk, y1); - partition(k, j, valueRight, xk, y0, x1, y1); - } + if ((y1 - y0) > (x1 - x0)) { + var yk = (y0 * valueRight + y1 * valueLeft) / value; + partition(i, k, valueLeft, x0, y0, x1, yk); + partition(k, j, valueRight, x0, yk, x1, y1); + } else { + var xk = (x0 * valueRight + x1 * valueLeft) / value; + partition(i, k, valueLeft, x0, y0, xk, y1); + partition(k, j, valueRight, xk, y0, x1, y1); } } +} - function sliceDice(parent, x0, y0, x1, y1) { - (parent.depth & 1 ? treemapSlice : treemapDice)(parent, x0, y0, x1, y1); - } +var sliceDice = function(parent, x0, y0, x1, y1) { + (parent.depth & 1 ? treemapSlice : treemapDice)(parent, x0, y0, x1, y1); +} - var resquarify = (function custom(ratio) { +var resquarify = (function custom(ratio) { - function resquarify(parent, x0, y0, x1, y1) { - if ((rows = parent._squarify) && (rows.ratio === ratio)) { - var rows, - row, - nodes, - i, - j = -1, - n, - m = rows.length, - value = parent.value; + function resquarify(parent, x0, y0, x1, y1) { + if ((rows = parent._squarify) && (rows.ratio === ratio)) { + var rows, + row, + nodes, + i, + j = -1, + n, + m = rows.length, + value = parent.value; - while (++j < m) { - row = rows[j], nodes = row.children; - for (i = row.value = 0, n = nodes.length; i < n; ++i) row.value += nodes[i].value; - if (row.dice) treemapDice(row, x0, y0, x1, y0 += (y1 - y0) * row.value / value); - else treemapSlice(row, x0, y0, x0 += (x1 - x0) * row.value / value, y1); - value -= row.value; - } - } else { - parent._squarify = rows = squarifyRatio(ratio, parent, x0, y0, x1, y1); - rows.ratio = ratio; + while (++j < m) { + row = rows[j], nodes = row.children; + for (i = row.value = 0, n = nodes.length; i < n; ++i) row.value += nodes[i].value; + if (row.dice) treemapDice(row, x0, y0, x1, y0 += (y1 - y0) * row.value / value); + else treemapSlice(row, x0, y0, x0 += (x1 - x0) * row.value / value, y1); + value -= row.value; } + } else { + parent._squarify = rows = squarifyRatio(ratio, parent, x0, y0, x1, y1); + rows.ratio = ratio; } + } - resquarify.ratio = function(x) { - return custom((x = +x) > 1 ? x : 1); - }; + resquarify.ratio = function(x) { + return custom((x = +x) > 1 ? x : 1); + }; - return resquarify; - })(phi); + return resquarify; +})(phi); - function center$1(x, y) { - var nodes; +var center$1 = function(x, y) { + var nodes; - if (x == null) x = 0; - if (y == null) y = 0; + if (x == null) x = 0; + if (y == null) y = 0; - function force() { - var i, - n = nodes.length, - node, - sx = 0, - sy = 0; + function force() { + var i, + n = nodes.length, + node, + sx = 0, + sy = 0; - for (i = 0; i < n; ++i) { - node = nodes[i], sx += node.x, sy += node.y; - } + for (i = 0; i < n; ++i) { + node = nodes[i], sx += node.x, sy += node.y; + } - for (sx = sx / n - x, sy = sy / n - y, i = 0; i < n; ++i) { - node = nodes[i], node.x -= sx, node.y -= sy; - } + for (sx = sx / n - x, sy = sy / n - y, i = 0; i < n; ++i) { + node = nodes[i], node.x -= sx, node.y -= sy; } + } - force.initialize = function(_) { - nodes = _; - }; + force.initialize = function(_) { + nodes = _; + }; - force.x = function(_) { - return arguments.length ? (x = +_, force) : x; - }; + force.x = function(_) { + return arguments.length ? (x = +_, force) : x; + }; - force.y = function(_) { - return arguments.length ? (y = +_, force) : y; - }; + force.y = function(_) { + return arguments.length ? (y = +_, force) : y; + }; - return force; - } + return force; +} - function constant$6(x) { - return function() { - return x; - }; - } +var constant$7 = function(x) { + return function() { + return x; + }; +} - function jiggle() { - return (Math.random() - 0.5) * 1e-6; - } +var jiggle = function() { + return (Math.random() - 0.5) * 1e-6; +} - function x$1(d) { - return d.x + d.vx; - } +function x$1(d) { + return d.x + d.vx; +} - function y$1(d) { - return d.y + d.vy; - } +function y$1(d) { + return d.y + d.vy; +} - function collide(radius) { - var nodes, - radii, - strength = 1, - iterations = 1; +var collide = function(radius) { + var nodes, + radii, + strength = 1, + iterations = 1; - if (typeof radius !== "function") radius = constant$6(radius == null ? 1 : +radius); + if (typeof radius !== "function") radius = constant$7(radius == null ? 1 : +radius); - function force() { - var i, n = nodes.length, - tree, - node, - xi, - yi, - ri, - ri2; + function force() { + var i, n = nodes.length, + tree, + node, + xi, + yi, + ri, + ri2; - for (var k = 0; k < iterations; ++k) { - tree = quadtree(nodes, x$1, y$1).visitAfter(prepare); - for (i = 0; i < n; ++i) { - node = nodes[i]; - ri = radii[i], ri2 = ri * ri; - xi = node.x + node.vx; - yi = node.y + node.vy; - tree.visit(apply); - } + for (var k = 0; k < iterations; ++k) { + tree = quadtree(nodes, x$1, y$1).visitAfter(prepare); + for (i = 0; i < n; ++i) { + node = nodes[i]; + ri = radii[i], ri2 = ri * ri; + xi = node.x + node.vx; + yi = node.y + node.vy; + tree.visit(apply); } + } - function apply(quad, x0, y0, x1, y1) { - var data = quad.data, rj = quad.r, r = ri + rj; - if (data) { - if (data.index > i) { - var x = xi - data.x - data.vx, - y = yi - data.y - data.vy, - l = x * x + y * y; - if (l < r * r) { - if (x === 0) x = jiggle(), l += x * x; - if (y === 0) y = jiggle(), l += y * y; - l = (r - (l = Math.sqrt(l))) / l * strength; - node.vx += (x *= l) * (r = (rj *= rj) / (ri2 + rj)); - node.vy += (y *= l) * r; - data.vx -= x * (r = 1 - r); - data.vy -= y * r; - } + function apply(quad, x0, y0, x1, y1) { + var data = quad.data, rj = quad.r, r = ri + rj; + if (data) { + if (data.index > i) { + var x = xi - data.x - data.vx, + y = yi - data.y - data.vy, + l = x * x + y * y; + if (l < r * r) { + if (x === 0) x = jiggle(), l += x * x; + if (y === 0) y = jiggle(), l += y * y; + l = (r - (l = Math.sqrt(l))) / l * strength; + node.vx += (x *= l) * (r = (rj *= rj) / (ri2 + rj)); + node.vy += (y *= l) * r; + data.vx -= x * (r = 1 - r); + data.vy -= y * r; } - return; } - return x0 > xi + r || x1 < xi - r || y0 > yi + r || y1 < yi - r; + return; } + return x0 > xi + r || x1 < xi - r || y0 > yi + r || y1 < yi - r; } + } - function prepare(quad) { - if (quad.data) return quad.r = radii[quad.data.index]; - for (var i = quad.r = 0; i < 4; ++i) { - if (quad[i] && quad[i].r > quad.r) { - quad.r = quad[i].r; - } + function prepare(quad) { + if (quad.data) return quad.r = radii[quad.data.index]; + for (var i = quad.r = 0; i < 4; ++i) { + if (quad[i] && quad[i].r > quad.r) { + quad.r = quad[i].r; } } + } - force.initialize = function(_) { - var i, n = (nodes = _).length; radii = new Array(n); - for (i = 0; i < n; ++i) radii[i] = +radius(nodes[i], i, nodes); - }; + force.initialize = function(_) { + var i, n = (nodes = _).length; radii = new Array(n); + for (i = 0; i < n; ++i) radii[i] = +radius(nodes[i], i, nodes); + }; - force.iterations = function(_) { - return arguments.length ? (iterations = +_, force) : iterations; - }; + force.iterations = function(_) { + return arguments.length ? (iterations = +_, force) : iterations; + }; - force.strength = function(_) { - return arguments.length ? (strength = +_, force) : strength; - }; + force.strength = function(_) { + return arguments.length ? (strength = +_, force) : strength; + }; - force.radius = function(_) { - return arguments.length ? (radius = typeof _ === "function" ? _ : constant$6(+_), force) : radius; - }; + force.radius = function(_) { + return arguments.length ? (radius = typeof _ === "function" ? _ : constant$7(+_), force) : radius; + }; - return force; - } + return force; +} - function index$2(d, i) { - return i; - } +function index$2(d, i) { + return i; +} - function link(links) { - var id = index$2, - strength = defaultStrength, - strengths, - distance = constant$6(30), - distances, - nodes, - count, - bias, - iterations = 1; +var link = function(links) { + var id = index$2, + strength = defaultStrength, + strengths, + distance = constant$7(30), + distances, + nodes, + count, + bias, + iterations = 1; - if (links == null) links = []; + if (links == null) links = []; - function defaultStrength(link) { - return 1 / Math.min(count[link.source.index], count[link.target.index]); - } + function defaultStrength(link) { + return 1 / Math.min(count[link.source.index], count[link.target.index]); + } - function force(alpha) { - for (var k = 0, n = links.length; k < iterations; ++k) { - for (var i = 0, link, source, target, x, y, l, b; i < n; ++i) { - link = links[i], source = link.source, target = link.target; - x = target.x + target.vx - source.x - source.vx || jiggle(); - y = target.y + target.vy - source.y - source.vy || jiggle(); - l = Math.sqrt(x * x + y * y); - l = (l - distances[i]) / l * alpha * strengths[i]; - x *= l, y *= l; - target.vx -= x * (b = bias[i]); - target.vy -= y * b; - source.vx += x * (b = 1 - b); - source.vy += y * b; - } + function force(alpha) { + for (var k = 0, n = links.length; k < iterations; ++k) { + for (var i = 0, link, source, target, x, y, l, b; i < n; ++i) { + link = links[i], source = link.source, target = link.target; + x = target.x + target.vx - source.x - source.vx || jiggle(); + y = target.y + target.vy - source.y - source.vy || jiggle(); + l = Math.sqrt(x * x + y * y); + l = (l - distances[i]) / l * alpha * strengths[i]; + x *= l, y *= l; + target.vx -= x * (b = bias[i]); + target.vy -= y * b; + source.vx += x * (b = 1 - b); + source.vy += y * b; } } + } - function initialize() { - if (!nodes) return; + function initialize() { + if (!nodes) return; - var i, - n = nodes.length, - m = links.length, - nodeById = map$1(nodes, id), - link; + var i, + n = nodes.length, + m = links.length, + nodeById = map$1(nodes, id), + link; - for (i = 0, count = new Array(n); i < n; ++i) { - count[i] = 0; - } + for (i = 0, count = new Array(n); i < n; ++i) { + count[i] = 0; + } - for (i = 0; i < m; ++i) { - link = links[i], link.index = i; - if (typeof link.source !== "object") link.source = nodeById.get(link.source); - if (typeof link.target !== "object") link.target = nodeById.get(link.target); - ++count[link.source.index], ++count[link.target.index]; - } + for (i = 0; i < m; ++i) { + link = links[i], link.index = i; + if (typeof link.source !== "object") link.source = nodeById.get(link.source); + if (typeof link.target !== "object") link.target = nodeById.get(link.target); + ++count[link.source.index], ++count[link.target.index]; + } - for (i = 0, bias = new Array(m); i < m; ++i) { - link = links[i], bias[i] = count[link.source.index] / (count[link.source.index] + count[link.target.index]); - } - - strengths = new Array(m), initializeStrength(); - distances = new Array(m), initializeDistance(); + for (i = 0, bias = new Array(m); i < m; ++i) { + link = links[i], bias[i] = count[link.source.index] / (count[link.source.index] + count[link.target.index]); } - function initializeStrength() { - if (!nodes) return; + strengths = new Array(m), initializeStrength(); + distances = new Array(m), initializeDistance(); + } - for (var i = 0, n = links.length; i < n; ++i) { - strengths[i] = +strength(links[i], i, links); - } + function initializeStrength() { + if (!nodes) return; + + for (var i = 0, n = links.length; i < n; ++i) { + strengths[i] = +strength(links[i], i, links); } + } - function initializeDistance() { - if (!nodes) return; + function initializeDistance() { + if (!nodes) return; - for (var i = 0, n = links.length; i < n; ++i) { - distances[i] = +distance(links[i], i, links); - } + for (var i = 0, n = links.length; i < n; ++i) { + distances[i] = +distance(links[i], i, links); } + } - force.initialize = function(_) { - nodes = _; - initialize(); - }; + force.initialize = function(_) { + nodes = _; + initialize(); + }; - force.links = function(_) { - return arguments.length ? (links = _, initialize(), force) : links; - }; + force.links = function(_) { + return arguments.length ? (links = _, initialize(), force) : links; + }; - force.id = function(_) { - return arguments.length ? (id = _, force) : id; - }; + force.id = function(_) { + return arguments.length ? (id = _, force) : id; + }; - force.iterations = function(_) { - return arguments.length ? (iterations = +_, force) : iterations; - }; + force.iterations = function(_) { + return arguments.length ? (iterations = +_, force) : iterations; + }; - force.strength = function(_) { - return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initializeStrength(), force) : strength; - }; + force.strength = function(_) { + return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initializeStrength(), force) : strength; + }; - force.distance = function(_) { - return arguments.length ? (distance = typeof _ === "function" ? _ : constant$6(+_), initializeDistance(), force) : distance; - }; + force.distance = function(_) { + return arguments.length ? (distance = typeof _ === "function" ? _ : constant$7(+_), initializeDistance(), force) : distance; + }; - return force; - } + return force; +} - function x$2(d) { - return d.x; - } +function x$2(d) { + return d.x; +} - function y$2(d) { - return d.y; - } +function y$2(d) { + return d.y; +} - var initialRadius = 10; - var initialAngle = Math.PI * (3 - Math.sqrt(5)); - function simulation(nodes) { - var simulation, - alpha = 1, - alphaMin = 0.001, - alphaDecay = 1 - Math.pow(alphaMin, 1 / 300), - alphaTarget = 0, - velocityDecay = 0.6, - forces = map$1(), - stepper = timer(step), - event = dispatch("tick", "end"); +var initialRadius = 10; +var initialAngle = Math.PI * (3 - Math.sqrt(5)); - if (nodes == null) nodes = []; +var simulation = function(nodes) { + var simulation, + alpha = 1, + alphaMin = 0.001, + alphaDecay = 1 - Math.pow(alphaMin, 1 / 300), + alphaTarget = 0, + velocityDecay = 0.6, + forces = map$1(), + stepper = timer(step), + event = dispatch("tick", "end"); - function step() { - tick(); - event.call("tick", simulation); - if (alpha < alphaMin) { - stepper.stop(); - event.call("end", simulation); - } + if (nodes == null) nodes = []; + + function step() { + tick(); + event.call("tick", simulation); + if (alpha < alphaMin) { + stepper.stop(); + event.call("end", simulation); } + } - function tick() { - var i, n = nodes.length, node; + function tick() { + var i, n = nodes.length, node; - alpha += (alphaTarget - alpha) * alphaDecay; + alpha += (alphaTarget - alpha) * alphaDecay; - forces.each(function(force) { - force(alpha); - }); + forces.each(function(force) { + force(alpha); + }); - for (i = 0; i < n; ++i) { - node = nodes[i]; - if (node.fx == null) node.x += node.vx *= velocityDecay; - else node.x = node.fx, node.vx = 0; - if (node.fy == null) node.y += node.vy *= velocityDecay; - else node.y = node.fy, node.vy = 0; - } + for (i = 0; i < n; ++i) { + node = nodes[i]; + if (node.fx == null) node.x += node.vx *= velocityDecay; + else node.x = node.fx, node.vx = 0; + if (node.fy == null) node.y += node.vy *= velocityDecay; + else node.y = node.fy, node.vy = 0; } + } - function initializeNodes() { - for (var i = 0, n = nodes.length, node; i < n; ++i) { - node = nodes[i], node.index = i; - if (isNaN(node.x) || isNaN(node.y)) { - var radius = initialRadius * Math.sqrt(i), angle = i * initialAngle; - node.x = radius * Math.cos(angle); - node.y = radius * Math.sin(angle); - } - if (isNaN(node.vx) || isNaN(node.vy)) { - node.vx = node.vy = 0; - } + function initializeNodes() { + for (var i = 0, n = nodes.length, node; i < n; ++i) { + node = nodes[i], node.index = i; + if (isNaN(node.x) || isNaN(node.y)) { + var radius = initialRadius * Math.sqrt(i), angle = i * initialAngle; + node.x = radius * Math.cos(angle); + node.y = radius * Math.sin(angle); } + if (isNaN(node.vx) || isNaN(node.vy)) { + node.vx = node.vy = 0; + } } + } - function initializeForce(force) { - if (force.initialize) force.initialize(nodes); - return force; - } + function initializeForce(force) { + if (force.initialize) force.initialize(nodes); + return force; + } - initializeNodes(); + initializeNodes(); - return simulation = { - tick: tick, + return simulation = { + tick: tick, - restart: function() { - return stepper.restart(step), simulation; - }, + restart: function() { + return stepper.restart(step), simulation; + }, - stop: function() { - return stepper.stop(), simulation; - }, + stop: function() { + return stepper.stop(), simulation; + }, - nodes: function(_) { - return arguments.length ? (nodes = _, initializeNodes(), forces.each(initializeForce), simulation) : nodes; - }, + nodes: function(_) { + return arguments.length ? (nodes = _, initializeNodes(), forces.each(initializeForce), simulation) : nodes; + }, - alpha: function(_) { - return arguments.length ? (alpha = +_, simulation) : alpha; - }, + alpha: function(_) { + return arguments.length ? (alpha = +_, simulation) : alpha; + }, - alphaMin: function(_) { - return arguments.length ? (alphaMin = +_, simulation) : alphaMin; - }, + alphaMin: function(_) { + return arguments.length ? (alphaMin = +_, simulation) : alphaMin; + }, - alphaDecay: function(_) { - return arguments.length ? (alphaDecay = +_, simulation) : +alphaDecay; - }, + alphaDecay: function(_) { + return arguments.length ? (alphaDecay = +_, simulation) : +alphaDecay; + }, - alphaTarget: function(_) { - return arguments.length ? (alphaTarget = +_, simulation) : alphaTarget; - }, + alphaTarget: function(_) { + return arguments.length ? (alphaTarget = +_, simulation) : alphaTarget; + }, - velocityDecay: function(_) { - return arguments.length ? (velocityDecay = 1 - _, simulation) : 1 - velocityDecay; - }, + velocityDecay: function(_) { + return arguments.length ? (velocityDecay = 1 - _, simulation) : 1 - velocityDecay; + }, - force: function(name, _) { - return arguments.length > 1 ? ((_ == null ? forces.remove(name) : forces.set(name, initializeForce(_))), simulation) : forces.get(name); - }, + force: function(name, _) { + return arguments.length > 1 ? ((_ == null ? forces.remove(name) : forces.set(name, initializeForce(_))), simulation) : forces.get(name); + }, - find: function(x, y, radius) { - var i = 0, - n = nodes.length, - dx, - dy, - d2, - node, - closest; + find: function(x, y, radius) { + var i = 0, + n = nodes.length, + dx, + dy, + d2, + node, + closest; - if (radius == null) radius = Infinity; - else radius *= radius; + if (radius == null) radius = Infinity; + else radius *= radius; - for (i = 0; i < n; ++i) { - node = nodes[i]; - dx = x - node.x; - dy = y - node.y; - d2 = dx * dx + dy * dy; - if (d2 < radius) closest = node, radius = d2; - } - - return closest; - }, - - on: function(name, _) { - return arguments.length > 1 ? (event.on(name, _), simulation) : event.on(name); + for (i = 0; i < n; ++i) { + node = nodes[i]; + dx = x - node.x; + dy = y - node.y; + d2 = dx * dx + dy * dy; + if (d2 < radius) closest = node, radius = d2; } - }; - } - function manyBody() { - var nodes, - node, - alpha, - strength = constant$6(-30), - strengths, - distanceMin2 = 1, - distanceMax2 = Infinity, - theta2 = 0.81; + return closest; + }, - function force(_) { - var i, n = nodes.length, tree = quadtree(nodes, x$2, y$2).visitAfter(accumulate); - for (alpha = _, i = 0; i < n; ++i) node = nodes[i], tree.visit(apply); + on: function(name, _) { + return arguments.length > 1 ? (event.on(name, _), simulation) : event.on(name); } + }; +} - function initialize() { - if (!nodes) return; - var i, n = nodes.length; - strengths = new Array(n); - for (i = 0; i < n; ++i) strengths[i] = +strength(nodes[i], i, nodes); - } +var manyBody = function() { + var nodes, + node, + alpha, + strength = constant$7(-30), + strengths, + distanceMin2 = 1, + distanceMax2 = Infinity, + theta2 = 0.81; - function accumulate(quad) { - var strength = 0, q, c, x, y, i; + function force(_) { + var i, n = nodes.length, tree = quadtree(nodes, x$2, y$2).visitAfter(accumulate); + for (alpha = _, i = 0; i < n; ++i) node = nodes[i], tree.visit(apply); + } - // For internal nodes, accumulate forces from child quadrants. - if (quad.length) { - for (x = y = i = 0; i < 4; ++i) { - if ((q = quad[i]) && (c = q.value)) { - strength += c, x += c * q.x, y += c * q.y; - } + function initialize() { + if (!nodes) return; + var i, n = nodes.length; + strengths = new Array(n); + for (i = 0; i < n; ++i) strengths[i] = +strength(nodes[i], i, nodes); + } + + function accumulate(quad) { + var strength = 0, q, c, x$$1, y$$1, i; + + // For internal nodes, accumulate forces from child quadrants. + if (quad.length) { + for (x$$1 = y$$1 = i = 0; i < 4; ++i) { + if ((q = quad[i]) && (c = q.value)) { + strength += c, x$$1 += c * q.x, y$$1 += c * q.y; } - quad.x = x / strength; - quad.y = y / strength; } + quad.x = x$$1 / strength; + quad.y = y$$1 / strength; + } - // For leaf nodes, accumulate forces from coincident quadrants. - else { - q = quad; - q.x = q.data.x; - q.y = q.data.y; - do strength += strengths[q.data.index]; - while (q = q.next); - } - - quad.value = strength; + // For leaf nodes, accumulate forces from coincident quadrants. + else { + q = quad; + q.x = q.data.x; + q.y = q.data.y; + do strength += strengths[q.data.index]; + while (q = q.next); } - function apply(quad, x1, _, x2) { - if (!quad.value) return true; + quad.value = strength; + } - var x = quad.x - node.x, - y = quad.y - node.y, - w = x2 - x1, - l = x * x + y * y; + function apply(quad, x1, _, x2) { + if (!quad.value) return true; - // Apply the Barnes-Hut approximation if possible. - // Limit forces for very close nodes; randomize direction if coincident. - if (w * w / theta2 < l) { - if (l < distanceMax2) { - if (x === 0) x = jiggle(), l += x * x; - if (y === 0) y = jiggle(), l += y * y; - if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l); - node.vx += x * quad.value * alpha / l; - node.vy += y * quad.value * alpha / l; - } - return true; - } + var x$$1 = quad.x - node.x, + y$$1 = quad.y - node.y, + w = x2 - x1, + l = x$$1 * x$$1 + y$$1 * y$$1; - // Otherwise, process points directly. - else if (quad.length || l >= distanceMax2) return; - - // Limit forces for very close nodes; randomize direction if coincident. - if (quad.data !== node || quad.next) { - if (x === 0) x = jiggle(), l += x * x; - if (y === 0) y = jiggle(), l += y * y; + // Apply the Barnes-Hut approximation if possible. + // Limit forces for very close nodes; randomize direction if coincident. + if (w * w / theta2 < l) { + if (l < distanceMax2) { + if (x$$1 === 0) x$$1 = jiggle(), l += x$$1 * x$$1; + if (y$$1 === 0) y$$1 = jiggle(), l += y$$1 * y$$1; if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l); + node.vx += x$$1 * quad.value * alpha / l; + node.vy += y$$1 * quad.value * alpha / l; } + return true; + } - do if (quad.data !== node) { - w = strengths[quad.data.index] * alpha / l; - node.vx += x * w; - node.vy += y * w; - } while (quad = quad.next); + // Otherwise, process points directly. + else if (quad.length || l >= distanceMax2) return; + + // Limit forces for very close nodes; randomize direction if coincident. + if (quad.data !== node || quad.next) { + if (x$$1 === 0) x$$1 = jiggle(), l += x$$1 * x$$1; + if (y$$1 === 0) y$$1 = jiggle(), l += y$$1 * y$$1; + if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l); } - force.initialize = function(_) { - nodes = _; - initialize(); - }; + do if (quad.data !== node) { + w = strengths[quad.data.index] * alpha / l; + node.vx += x$$1 * w; + node.vy += y$$1 * w; + } while (quad = quad.next); + } - force.strength = function(_) { - return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : strength; - }; + force.initialize = function(_) { + nodes = _; + initialize(); + }; - force.distanceMin = function(_) { - return arguments.length ? (distanceMin2 = _ * _, force) : Math.sqrt(distanceMin2); - }; + force.strength = function(_) { + return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; + }; - force.distanceMax = function(_) { - return arguments.length ? (distanceMax2 = _ * _, force) : Math.sqrt(distanceMax2); - }; + force.distanceMin = function(_) { + return arguments.length ? (distanceMin2 = _ * _, force) : Math.sqrt(distanceMin2); + }; - force.theta = function(_) { - return arguments.length ? (theta2 = _ * _, force) : Math.sqrt(theta2); - }; + force.distanceMax = function(_) { + return arguments.length ? (distanceMax2 = _ * _, force) : Math.sqrt(distanceMax2); + }; - return force; - } + force.theta = function(_) { + return arguments.length ? (theta2 = _ * _, force) : Math.sqrt(theta2); + }; - function x$3(x) { - var strength = constant$6(0.1), - nodes, - strengths, - xz; + return force; +} - if (typeof x !== "function") x = constant$6(x == null ? 0 : +x); +var x$3 = function(x) { + var strength = constant$7(0.1), + nodes, + strengths, + xz; - function force(alpha) { - for (var i = 0, n = nodes.length, node; i < n; ++i) { - node = nodes[i], node.vx += (xz[i] - node.x) * strengths[i] * alpha; - } + if (typeof x !== "function") x = constant$7(x == null ? 0 : +x); + + function force(alpha) { + for (var i = 0, n = nodes.length, node; i < n; ++i) { + node = nodes[i], node.vx += (xz[i] - node.x) * strengths[i] * alpha; } + } - function initialize() { - if (!nodes) return; - var i, n = nodes.length; - strengths = new Array(n); - xz = new Array(n); - for (i = 0; i < n; ++i) { - strengths[i] = isNaN(xz[i] = +x(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes); - } + function initialize() { + if (!nodes) return; + var i, n = nodes.length; + strengths = new Array(n); + xz = new Array(n); + for (i = 0; i < n; ++i) { + strengths[i] = isNaN(xz[i] = +x(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes); } + } - force.initialize = function(_) { - nodes = _; - initialize(); - }; + force.initialize = function(_) { + nodes = _; + initialize(); + }; - force.strength = function(_) { - return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : strength; - }; + force.strength = function(_) { + return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; + }; - force.x = function(_) { - return arguments.length ? (x = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : x; - }; + force.x = function(_) { + return arguments.length ? (x = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : x; + }; - return force; - } + return force; +} - function y$3(y) { - var strength = constant$6(0.1), - nodes, - strengths, - yz; +var y$3 = function(y) { + var strength = constant$7(0.1), + nodes, + strengths, + yz; - if (typeof y !== "function") y = constant$6(y == null ? 0 : +y); + if (typeof y !== "function") y = constant$7(y == null ? 0 : +y); - function force(alpha) { - for (var i = 0, n = nodes.length, node; i < n; ++i) { - node = nodes[i], node.vy += (yz[i] - node.y) * strengths[i] * alpha; - } + function force(alpha) { + for (var i = 0, n = nodes.length, node; i < n; ++i) { + node = nodes[i], node.vy += (yz[i] - node.y) * strengths[i] * alpha; } + } - function initialize() { - if (!nodes) return; - var i, n = nodes.length; - strengths = new Array(n); - yz = new Array(n); - for (i = 0; i < n; ++i) { - strengths[i] = isNaN(yz[i] = +y(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes); - } + function initialize() { + if (!nodes) return; + var i, n = nodes.length; + strengths = new Array(n); + yz = new Array(n); + for (i = 0; i < n; ++i) { + strengths[i] = isNaN(yz[i] = +y(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes); } + } - force.initialize = function(_) { - nodes = _; - initialize(); - }; + force.initialize = function(_) { + nodes = _; + initialize(); + }; - force.strength = function(_) { - return arguments.length ? (strength = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : strength; - }; + force.strength = function(_) { + return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; + }; - force.y = function(_) { - return arguments.length ? (y = typeof _ === "function" ? _ : constant$6(+_), initialize(), force) : y; - }; + force.y = function(_) { + return arguments.length ? (y = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : y; + }; - return force; - } + return force; +} - function nopropagation() { - exports.event.stopImmediatePropagation(); - } +function nopropagation() { + exports.event.stopImmediatePropagation(); +} - function noevent() { - exports.event.preventDefault(); - exports.event.stopImmediatePropagation(); - } +var noevent = function() { + exports.event.preventDefault(); + exports.event.stopImmediatePropagation(); +} - function dragDisable(view) { - var root = view.document.documentElement, - selection = select(view).on("dragstart.drag", noevent, true); - if ("onselectstart" in root) { - selection.on("selectstart.drag", noevent, true); - } else { - root.__noselect = root.style.MozUserSelect; - root.style.MozUserSelect = "none"; - } +var dragDisable = function(view) { + var root = view.document.documentElement, + selection$$1 = select(view).on("dragstart.drag", noevent, true); + if ("onselectstart" in root) { + selection$$1.on("selectstart.drag", noevent, true); + } else { + root.__noselect = root.style.MozUserSelect; + root.style.MozUserSelect = "none"; } +} - function dragEnable(view, noclick) { - var root = view.document.documentElement, - selection = select(view).on("dragstart.drag", null); - if (noclick) { - selection.on("click.drag", noevent, true); - setTimeout(function() { selection.on("click.drag", null); }, 0); - } - if ("onselectstart" in root) { - selection.on("selectstart.drag", null); - } else { - root.style.MozUserSelect = root.__noselect; - delete root.__noselect; - } +function yesdrag(view, noclick) { + var root = view.document.documentElement, + selection$$1 = select(view).on("dragstart.drag", null); + if (noclick) { + selection$$1.on("click.drag", noevent, true); + setTimeout(function() { selection$$1.on("click.drag", null); }, 0); } - - function constant$7(x) { - return function() { - return x; - }; + if ("onselectstart" in root) { + selection$$1.on("selectstart.drag", null); + } else { + root.style.MozUserSelect = root.__noselect; + delete root.__noselect; } +} - function DragEvent(target, type, subject, id, active, x, y, dx, dy, dispatch) { - this.target = target; - this.type = type; - this.subject = subject; - this.identifier = id; - this.active = active; - this.x = x; - this.y = y; - this.dx = dx; - this.dy = dy; - this._ = dispatch; - } - - DragEvent.prototype.on = function() { - var value = this._.on.apply(this._, arguments); - return value === this._ ? this : value; +var constant$8 = function(x) { + return function() { + return x; }; +} - // Ignore right-click, since that should open the context menu. - function defaultFilter() { - return !exports.event.button; - } +function DragEvent(target, type, subject, id, active, x, y, dx, dy, dispatch) { + this.target = target; + this.type = type; + this.subject = subject; + this.identifier = id; + this.active = active; + this.x = x; + this.y = y; + this.dx = dx; + this.dy = dy; + this._ = dispatch; +} - function defaultContainer() { - return this.parentNode; - } +DragEvent.prototype.on = function() { + var value = this._.on.apply(this._, arguments); + return value === this._ ? this : value; +}; - function defaultSubject(d) { - return d == null ? {x: exports.event.x, y: exports.event.y} : d; - } +// Ignore right-click, since that should open the context menu. +function defaultFilter() { + return !exports.event.button; +} - function drag() { - var filter = defaultFilter, - container = defaultContainer, - subject = defaultSubject, - gestures = {}, - listeners = dispatch("start", "drag", "end"), - active = 0, - mousemoving, - touchending; +function defaultContainer() { + return this.parentNode; +} - function drag(selection) { - selection - .on("mousedown.drag", mousedowned) - .on("touchstart.drag", touchstarted) - .on("touchmove.drag", touchmoved) - .on("touchend.drag touchcancel.drag", touchended) - .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)"); - } +function defaultSubject(d) { + return d == null ? {x: exports.event.x, y: exports.event.y} : d; +} - function mousedowned() { - if (touchending || !filter.apply(this, arguments)) return; - var gesture = beforestart("mouse", container.apply(this, arguments), mouse, this, arguments); - if (!gesture) return; - select(exports.event.view).on("mousemove.drag", mousemoved, true).on("mouseup.drag", mouseupped, true); - dragDisable(exports.event.view); - nopropagation(); - mousemoving = false; - gesture("start"); - } +var drag = function() { + var filter = defaultFilter, + container = defaultContainer, + subject = defaultSubject, + gestures = {}, + listeners = dispatch("start", "drag", "end"), + active = 0, + mousemoving, + touchending; - function mousemoved() { - noevent(); - mousemoving = true; - gestures.mouse("drag"); - } + function drag(selection$$1) { + selection$$1 + .on("mousedown.drag", mousedowned) + .on("touchstart.drag", touchstarted) + .on("touchmove.drag", touchmoved) + .on("touchend.drag touchcancel.drag", touchended) + .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)"); + } - function mouseupped() { - select(exports.event.view).on("mousemove.drag mouseup.drag", null); - dragEnable(exports.event.view, mousemoving); - noevent(); - gestures.mouse("end"); - } + function mousedowned() { + if (touchending || !filter.apply(this, arguments)) return; + var gesture = beforestart("mouse", container.apply(this, arguments), mouse, this, arguments); + if (!gesture) return; + select(exports.event.view).on("mousemove.drag", mousemoved, true).on("mouseup.drag", mouseupped, true); + dragDisable(exports.event.view); + nopropagation(); + mousemoving = false; + gesture("start"); + } - function touchstarted() { - if (!filter.apply(this, arguments)) return; - var touches = exports.event.changedTouches, - c = container.apply(this, arguments), - n = touches.length, i, gesture; + function mousemoved() { + noevent(); + mousemoving = true; + gestures.mouse("drag"); + } - for (i = 0; i < n; ++i) { - if (gesture = beforestart(touches[i].identifier, c, touch, this, arguments)) { - nopropagation(); - gesture("start"); - } + function mouseupped() { + select(exports.event.view).on("mousemove.drag mouseup.drag", null); + yesdrag(exports.event.view, mousemoving); + noevent(); + gestures.mouse("end"); + } + + function touchstarted() { + if (!filter.apply(this, arguments)) return; + var touches$$1 = exports.event.changedTouches, + c = container.apply(this, arguments), + n = touches$$1.length, i, gesture; + + for (i = 0; i < n; ++i) { + if (gesture = beforestart(touches$$1[i].identifier, c, touch, this, arguments)) { + nopropagation(); + gesture("start"); } } + } - function touchmoved() { - var touches = exports.event.changedTouches, - n = touches.length, i, gesture; + function touchmoved() { + var touches$$1 = exports.event.changedTouches, + n = touches$$1.length, i, gesture; - for (i = 0; i < n; ++i) { - if (gesture = gestures[touches[i].identifier]) { - noevent(); - gesture("drag"); - } + for (i = 0; i < n; ++i) { + if (gesture = gestures[touches$$1[i].identifier]) { + noevent(); + gesture("drag"); } } + } - function touchended() { - var touches = exports.event.changedTouches, - n = touches.length, i, gesture; + function touchended() { + var touches$$1 = exports.event.changedTouches, + n = touches$$1.length, i, gesture; - if (touchending) clearTimeout(touchending); - touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed! - for (i = 0; i < n; ++i) { - if (gesture = gestures[touches[i].identifier]) { - nopropagation(); - gesture("end"); - } + if (touchending) clearTimeout(touchending); + touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed! + for (i = 0; i < n; ++i) { + if (gesture = gestures[touches$$1[i].identifier]) { + nopropagation(); + gesture("end"); } } + } - function beforestart(id, container, point, that, args) { - var p = point(container, id), s, dx, dy, - sublisteners = listeners.copy(); + function beforestart(id, container, point, that, args) { + var p = point(container, id), s, dx, dy, + sublisteners = listeners.copy(); - if (!customEvent(new DragEvent(drag, "beforestart", s, id, active, p[0], p[1], 0, 0, sublisteners), function() { - if ((exports.event.subject = s = subject.apply(that, args)) == null) return false; - dx = s.x - p[0] || 0; - dy = s.y - p[1] || 0; - return true; - })) return; + if (!customEvent(new DragEvent(drag, "beforestart", s, id, active, p[0], p[1], 0, 0, sublisteners), function() { + if ((exports.event.subject = s = subject.apply(that, args)) == null) return false; + dx = s.x - p[0] || 0; + dy = s.y - p[1] || 0; + return true; + })) return; - return function gesture(type) { - var p0 = p, n; - switch (type) { - case "start": gestures[id] = gesture, n = active++; break; - case "end": delete gestures[id], --active; // nobreak - case "drag": p = point(container, id), n = active; break; - } - customEvent(new DragEvent(drag, type, s, id, n, p[0] + dx, p[1] + dy, p[0] - p0[0], p[1] - p0[1], sublisteners), sublisteners.apply, sublisteners, [type, that, args]); - }; - } - - drag.filter = function(_) { - return arguments.length ? (filter = typeof _ === "function" ? _ : constant$7(!!_), drag) : filter; + return function gesture(type) { + var p0 = p, n; + switch (type) { + case "start": gestures[id] = gesture, n = active++; break; + case "end": delete gestures[id], --active; // nobreak + case "drag": p = point(container, id), n = active; break; + } + customEvent(new DragEvent(drag, type, s, id, n, p[0] + dx, p[1] + dy, p[0] - p0[0], p[1] - p0[1], sublisteners), sublisteners.apply, sublisteners, [type, that, args]); }; + } - drag.container = function(_) { - return arguments.length ? (container = typeof _ === "function" ? _ : constant$7(_), drag) : container; - }; + drag.filter = function(_) { + return arguments.length ? (filter = typeof _ === "function" ? _ : constant$8(!!_), drag) : filter; + }; - drag.subject = function(_) { - return arguments.length ? (subject = typeof _ === "function" ? _ : constant$7(_), drag) : subject; - }; + drag.container = function(_) { + return arguments.length ? (container = typeof _ === "function" ? _ : constant$8(_), drag) : container; + }; - drag.on = function() { - var value = listeners.on.apply(listeners, arguments); - return value === listeners ? drag : value; - }; + drag.subject = function(_) { + return arguments.length ? (subject = typeof _ === "function" ? _ : constant$8(_), drag) : subject; + }; - return drag; - } + drag.on = function() { + var value = listeners.on.apply(listeners, arguments); + return value === listeners ? drag : value; + }; - function constant$8(x) { - return function() { - return x; - }; - } + return drag; +} - function x$4(d) { - return d[0]; - } +var constant$9 = function(x) { + return function() { + return x; + }; +} - function y$4(d) { - return d[1]; - } +function x$4(d) { + return d[0]; +} - function RedBlackTree() { - this._ = null; // root node - } +function y$4(d) { + return d[1]; +} - function RedBlackNode(node) { - node.U = // parent node - node.C = // color - true for red, false for black - node.L = // left node - node.R = // right node - node.P = // previous node - node.N = null; // next node - } +function RedBlackTree() { + this._ = null; // root node +} - RedBlackTree.prototype = { - constructor: RedBlackTree, +function RedBlackNode(node) { + node.U = // parent node + node.C = // color - true for red, false for black + node.L = // left node + node.R = // right node + node.P = // previous node + node.N = null; // next node +} - insert: function(after, node) { - var parent, grandpa, uncle; +RedBlackTree.prototype = { + constructor: RedBlackTree, - if (after) { - node.P = after; - node.N = after.N; - if (after.N) after.N.P = node; - after.N = node; - if (after.R) { - after = after.R; - while (after.L) after = after.L; - after.L = node; - } else { - after.R = node; - } - parent = after; - } else if (this._) { - after = RedBlackFirst(this._); - node.P = null; - node.N = after; - after.P = after.L = node; - parent = after; + insert: function(after, node) { + var parent, grandpa, uncle; + + if (after) { + node.P = after; + node.N = after.N; + if (after.N) after.N.P = node; + after.N = node; + if (after.R) { + after = after.R; + while (after.L) after = after.L; + after.L = node; } else { - node.P = node.N = null; - this._ = node; - parent = null; + after.R = node; } - node.L = node.R = null; - node.U = parent; - node.C = true; + parent = after; + } else if (this._) { + after = RedBlackFirst(this._); + node.P = null; + node.N = after; + after.P = after.L = node; + parent = after; + } else { + node.P = node.N = null; + this._ = node; + parent = null; + } + node.L = node.R = null; + node.U = parent; + node.C = true; - after = node; - while (parent && parent.C) { - grandpa = parent.U; - if (parent === grandpa.L) { - uncle = grandpa.R; - if (uncle && uncle.C) { - parent.C = uncle.C = false; - grandpa.C = true; - after = grandpa; - } else { - if (after === parent.R) { - RedBlackRotateLeft(this, parent); - after = parent; - parent = after.U; - } - parent.C = false; - grandpa.C = true; - RedBlackRotateRight(this, grandpa); + after = node; + while (parent && parent.C) { + grandpa = parent.U; + if (parent === grandpa.L) { + uncle = grandpa.R; + if (uncle && uncle.C) { + parent.C = uncle.C = false; + grandpa.C = true; + after = grandpa; + } else { + if (after === parent.R) { + RedBlackRotateLeft(this, parent); + after = parent; + parent = after.U; } + parent.C = false; + grandpa.C = true; + RedBlackRotateRight(this, grandpa); + } + } else { + uncle = grandpa.L; + if (uncle && uncle.C) { + parent.C = uncle.C = false; + grandpa.C = true; + after = grandpa; } else { - uncle = grandpa.L; - if (uncle && uncle.C) { - parent.C = uncle.C = false; - grandpa.C = true; - after = grandpa; - } else { - if (after === parent.L) { - RedBlackRotateRight(this, parent); - after = parent; - parent = after.U; - } - parent.C = false; - grandpa.C = true; - RedBlackRotateLeft(this, grandpa); + if (after === parent.L) { + RedBlackRotateRight(this, parent); + after = parent; + parent = after.U; } + parent.C = false; + grandpa.C = true; + RedBlackRotateLeft(this, grandpa); } - parent = after.U; } - this._.C = false; - }, + parent = after.U; + } + this._.C = false; + }, - remove: function(node) { - if (node.N) node.N.P = node.P; - if (node.P) node.P.N = node.N; - node.N = node.P = null; + remove: function(node) { + if (node.N) node.N.P = node.P; + if (node.P) node.P.N = node.N; + node.N = node.P = null; - var parent = node.U, - sibling, - left = node.L, - right = node.R, - next, - red; + var parent = node.U, + sibling, + left = node.L, + right = node.R, + next, + red; - if (!left) next = right; - else if (!right) next = left; - else next = RedBlackFirst(right); + if (!left) next = right; + else if (!right) next = left; + else next = RedBlackFirst(right); - if (parent) { - if (parent.L === node) parent.L = next; - else parent.R = next; - } else { - this._ = next; - } + if (parent) { + if (parent.L === node) parent.L = next; + else parent.R = next; + } else { + this._ = next; + } - if (left && right) { - red = next.C; - next.C = node.C; - next.L = left; - left.U = next; - if (next !== right) { - parent = next.U; - next.U = node.U; - node = next.R; - parent.L = node; - next.R = right; - right.U = next; - } else { - next.U = parent; - parent = next; - node = next.R; - } + if (left && right) { + red = next.C; + next.C = node.C; + next.L = left; + left.U = next; + if (next !== right) { + parent = next.U; + next.U = node.U; + node = next.R; + parent.L = node; + next.R = right; + right.U = next; } else { - red = node.C; - node = next; + next.U = parent; + parent = next; + node = next.R; } + } else { + red = node.C; + node = next; + } - if (node) node.U = parent; - if (red) return; - if (node && node.C) { node.C = false; return; } + if (node) node.U = parent; + if (red) return; + if (node && node.C) { node.C = false; return; } - do { - if (node === this._) break; - if (node === parent.L) { + do { + if (node === this._) break; + if (node === parent.L) { + sibling = parent.R; + if (sibling.C) { + sibling.C = false; + parent.C = true; + RedBlackRotateLeft(this, parent); sibling = parent.R; - if (sibling.C) { - sibling.C = false; - parent.C = true; - RedBlackRotateLeft(this, parent); + } + if ((sibling.L && sibling.L.C) + || (sibling.R && sibling.R.C)) { + if (!sibling.R || !sibling.R.C) { + sibling.L.C = false; + sibling.C = true; + RedBlackRotateRight(this, sibling); sibling = parent.R; } - if ((sibling.L && sibling.L.C) - || (sibling.R && sibling.R.C)) { - if (!sibling.R || !sibling.R.C) { - sibling.L.C = false; - sibling.C = true; - RedBlackRotateRight(this, sibling); - sibling = parent.R; - } - sibling.C = parent.C; - parent.C = sibling.R.C = false; - RedBlackRotateLeft(this, parent); - node = this._; - break; - } - } else { + sibling.C = parent.C; + parent.C = sibling.R.C = false; + RedBlackRotateLeft(this, parent); + node = this._; + break; + } + } else { + sibling = parent.L; + if (sibling.C) { + sibling.C = false; + parent.C = true; + RedBlackRotateRight(this, parent); sibling = parent.L; - if (sibling.C) { - sibling.C = false; - parent.C = true; - RedBlackRotateRight(this, parent); + } + if ((sibling.L && sibling.L.C) + || (sibling.R && sibling.R.C)) { + if (!sibling.L || !sibling.L.C) { + sibling.R.C = false; + sibling.C = true; + RedBlackRotateLeft(this, sibling); sibling = parent.L; } - if ((sibling.L && sibling.L.C) - || (sibling.R && sibling.R.C)) { - if (!sibling.L || !sibling.L.C) { - sibling.R.C = false; - sibling.C = true; - RedBlackRotateLeft(this, sibling); - sibling = parent.L; - } - sibling.C = parent.C; - parent.C = sibling.L.C = false; - RedBlackRotateRight(this, parent); - node = this._; - break; - } + sibling.C = parent.C; + parent.C = sibling.L.C = false; + RedBlackRotateRight(this, parent); + node = this._; + break; } - sibling.C = true; - node = parent; - parent = parent.U; - } while (!node.C); + } + sibling.C = true; + node = parent; + parent = parent.U; + } while (!node.C); - if (node) node.C = false; - } - }; + if (node) node.C = false; + } +}; - function RedBlackRotateLeft(tree, node) { - var p = node, - q = node.R, - parent = p.U; +function RedBlackRotateLeft(tree, node) { + var p = node, + q = node.R, + parent = p.U; - if (parent) { - if (parent.L === p) parent.L = q; - else parent.R = q; - } else { - tree._ = q; - } - - q.U = parent; - p.U = q; - p.R = q.L; - if (p.R) p.R.U = p; - q.L = p; + if (parent) { + if (parent.L === p) parent.L = q; + else parent.R = q; + } else { + tree._ = q; } - function RedBlackRotateRight(tree, node) { - var p = node, - q = node.L, - parent = p.U; + q.U = parent; + p.U = q; + p.R = q.L; + if (p.R) p.R.U = p; + q.L = p; +} - if (parent) { - if (parent.L === p) parent.L = q; - else parent.R = q; - } else { - tree._ = q; - } +function RedBlackRotateRight(tree, node) { + var p = node, + q = node.L, + parent = p.U; - q.U = parent; - p.U = q; - p.L = q.R; - if (p.L) p.L.U = p; - q.R = p; + if (parent) { + if (parent.L === p) parent.L = q; + else parent.R = q; + } else { + tree._ = q; } - function RedBlackFirst(node) { - while (node.L) node = node.L; - return node; - } + q.U = parent; + p.U = q; + p.L = q.R; + if (p.L) p.L.U = p; + q.R = p; +} - function createEdge(left, right, v0, v1) { - var edge = [null, null], - index = edges.push(edge) - 1; +function RedBlackFirst(node) { + while (node.L) node = node.L; + return node; +} + +function createEdge(left, right, v0, v1) { + var edge = [null, null], + index = edges.push(edge) - 1; + edge.left = left; + edge.right = right; + if (v0) setEdgeEnd(edge, left, right, v0); + if (v1) setEdgeEnd(edge, right, left, v1); + cells[left.index].halfedges.push(index); + cells[right.index].halfedges.push(index); + return edge; +} + +function createBorderEdge(left, v0, v1) { + var edge = [v0, v1]; + edge.left = left; + return edge; +} + +function setEdgeEnd(edge, left, right, vertex) { + if (!edge[0] && !edge[1]) { + edge[0] = vertex; edge.left = left; edge.right = right; - if (v0) setEdgeEnd(edge, left, right, v0); - if (v1) setEdgeEnd(edge, right, left, v1); - cells[left.index].halfedges.push(index); - cells[right.index].halfedges.push(index); - return edge; + } else if (edge.left === right) { + edge[1] = vertex; + } else { + edge[0] = vertex; } +} - function createBorderEdge(left, v0, v1) { - var edge = [v0, v1]; - edge.left = left; - return edge; +// Liang–Barsky line clipping. +function clipEdge(edge, x0, y0, x1, y1) { + var a = edge[0], + b = edge[1], + ax = a[0], + ay = a[1], + bx = b[0], + by = b[1], + t0 = 0, + t1 = 1, + dx = bx - ax, + dy = by - ay, + r; + + r = x0 - ax; + if (!dx && r > 0) return; + r /= dx; + if (dx < 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } else if (dx > 0) { + if (r > t1) return; + if (r > t0) t0 = r; } - function setEdgeEnd(edge, left, right, vertex) { - if (!edge[0] && !edge[1]) { - edge[0] = vertex; - edge.left = left; - edge.right = right; - } else if (edge.left === right) { - edge[1] = vertex; - } else { - edge[0] = vertex; - } + r = x1 - ax; + if (!dx && r < 0) return; + r /= dx; + if (dx < 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } else if (dx > 0) { + if (r < t0) return; + if (r < t1) t1 = r; } - // Liang–Barsky line clipping. - function clipEdge(edge, x0, y0, x1, y1) { - var a = edge[0], - b = edge[1], - ax = a[0], - ay = a[1], - bx = b[0], - by = b[1], - t0 = 0, - t1 = 1, - dx = bx - ax, - dy = by - ay, - r; + r = y0 - ay; + if (!dy && r > 0) return; + r /= dy; + if (dy < 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } else if (dy > 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } - r = x0 - ax; - if (!dx && r > 0) return; - r /= dx; - if (dx < 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } else if (dx > 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } + r = y1 - ay; + if (!dy && r < 0) return; + r /= dy; + if (dy < 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } else if (dy > 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } - r = x1 - ax; - if (!dx && r < 0) return; - r /= dx; - if (dx < 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } else if (dx > 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } + if (!(t0 > 0) && !(t1 < 1)) return true; // TODO Better check? - r = y0 - ay; - if (!dy && r > 0) return; - r /= dy; - if (dy < 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } else if (dy > 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } + if (t0 > 0) edge[0] = [ax + t0 * dx, ay + t0 * dy]; + if (t1 < 1) edge[1] = [ax + t1 * dx, ay + t1 * dy]; + return true; +} - r = y1 - ay; - if (!dy && r < 0) return; - r /= dy; - if (dy < 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } else if (dy > 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } +function connectEdge(edge, x0, y0, x1, y1) { + var v1 = edge[1]; + if (v1) return true; - if (!(t0 > 0) && !(t1 < 1)) return true; // TODO Better check? + var v0 = edge[0], + left = edge.left, + right = edge.right, + lx = left[0], + ly = left[1], + rx = right[0], + ry = right[1], + fx = (lx + rx) / 2, + fy = (ly + ry) / 2, + fm, + fb; - if (t0 > 0) edge[0] = [ax + t0 * dx, ay + t0 * dy]; - if (t1 < 1) edge[1] = [ax + t1 * dx, ay + t1 * dy]; - return true; - } - - function connectEdge(edge, x0, y0, x1, y1) { - var v1 = edge[1]; - if (v1) return true; - - var v0 = edge[0], - left = edge.left, - right = edge.right, - lx = left[0], - ly = left[1], - rx = right[0], - ry = right[1], - fx = (lx + rx) / 2, - fy = (ly + ry) / 2, - fm, - fb; - - if (ry === ly) { - if (fx < x0 || fx >= x1) return; + if (ry === ly) { + if (fx < x0 || fx >= x1) return; + if (lx > rx) { + if (!v0) v0 = [fx, y0]; + else if (v0[1] >= y1) return; + v1 = [fx, y1]; + } else { + if (!v0) v0 = [fx, y1]; + else if (v0[1] < y0) return; + v1 = [fx, y0]; + } + } else { + fm = (lx - rx) / (ry - ly); + fb = fy - fm * fx; + if (fm < -1 || fm > 1) { if (lx > rx) { - if (!v0) v0 = [fx, y0]; + if (!v0) v0 = [(y0 - fb) / fm, y0]; else if (v0[1] >= y1) return; - v1 = [fx, y1]; + v1 = [(y1 - fb) / fm, y1]; } else { - if (!v0) v0 = [fx, y1]; + if (!v0) v0 = [(y1 - fb) / fm, y1]; else if (v0[1] < y0) return; - v1 = [fx, y0]; + v1 = [(y0 - fb) / fm, y0]; } } else { - fm = (lx - rx) / (ry - ly); - fb = fy - fm * fx; - if (fm < -1 || fm > 1) { - if (lx > rx) { - if (!v0) v0 = [(y0 - fb) / fm, y0]; - else if (v0[1] >= y1) return; - v1 = [(y1 - fb) / fm, y1]; - } else { - if (!v0) v0 = [(y1 - fb) / fm, y1]; - else if (v0[1] < y0) return; - v1 = [(y0 - fb) / fm, y0]; - } + if (ly < ry) { + if (!v0) v0 = [x0, fm * x0 + fb]; + else if (v0[0] >= x1) return; + v1 = [x1, fm * x1 + fb]; } else { - if (ly < ry) { - if (!v0) v0 = [x0, fm * x0 + fb]; - else if (v0[0] >= x1) return; - v1 = [x1, fm * x1 + fb]; - } else { - if (!v0) v0 = [x1, fm * x1 + fb]; - else if (v0[0] < x0) return; - v1 = [x0, fm * x0 + fb]; - } + if (!v0) v0 = [x1, fm * x1 + fb]; + else if (v0[0] < x0) return; + v1 = [x0, fm * x0 + fb]; } } - - edge[0] = v0; - edge[1] = v1; - return true; } - function clipEdges(x0, y0, x1, y1) { - var i = edges.length, - edge; + edge[0] = v0; + edge[1] = v1; + return true; +} - while (i--) { - if (!connectEdge(edge = edges[i], x0, y0, x1, y1) - || !clipEdge(edge, x0, y0, x1, y1) - || !(Math.abs(edge[0][0] - edge[1][0]) > epsilon$3 - || Math.abs(edge[0][1] - edge[1][1]) > epsilon$3)) { - delete edges[i]; - } +function clipEdges(x0, y0, x1, y1) { + var i = edges.length, + edge; + + while (i--) { + if (!connectEdge(edge = edges[i], x0, y0, x1, y1) + || !clipEdge(edge, x0, y0, x1, y1) + || !(Math.abs(edge[0][0] - edge[1][0]) > epsilon$3 + || Math.abs(edge[0][1] - edge[1][1]) > epsilon$3)) { + delete edges[i]; } } +} - function createCell(site) { - return cells[site.index] = { - site: site, - halfedges: [] - }; - } +function createCell(site) { + return cells[site.index] = { + site: site, + halfedges: [] + }; +} - function cellHalfedgeAngle(cell, edge) { - var site = cell.site, - va = edge.left, - vb = edge.right; - if (site === vb) vb = va, va = site; - if (vb) return Math.atan2(vb[1] - va[1], vb[0] - va[0]); - if (site === va) va = edge[1], vb = edge[0]; - else va = edge[0], vb = edge[1]; - return Math.atan2(va[0] - vb[0], vb[1] - va[1]); - } +function cellHalfedgeAngle(cell, edge) { + var site = cell.site, + va = edge.left, + vb = edge.right; + if (site === vb) vb = va, va = site; + if (vb) return Math.atan2(vb[1] - va[1], vb[0] - va[0]); + if (site === va) va = edge[1], vb = edge[0]; + else va = edge[0], vb = edge[1]; + return Math.atan2(va[0] - vb[0], vb[1] - va[1]); +} - function cellHalfedgeStart(cell, edge) { - return edge[+(edge.left !== cell.site)]; - } +function cellHalfedgeStart(cell, edge) { + return edge[+(edge.left !== cell.site)]; +} - function cellHalfedgeEnd(cell, edge) { - return edge[+(edge.left === cell.site)]; - } +function cellHalfedgeEnd(cell, edge) { + return edge[+(edge.left === cell.site)]; +} - function sortCellHalfedges() { - for (var i = 0, n = cells.length, cell, halfedges, j, m; i < n; ++i) { - if ((cell = cells[i]) && (m = (halfedges = cell.halfedges).length)) { - var index = new Array(m), - array = new Array(m); - for (j = 0; j < m; ++j) index[j] = j, array[j] = cellHalfedgeAngle(cell, edges[halfedges[j]]); - index.sort(function(i, j) { return array[j] - array[i]; }); - for (j = 0; j < m; ++j) array[j] = halfedges[index[j]]; - for (j = 0; j < m; ++j) halfedges[j] = array[j]; - } +function sortCellHalfedges() { + for (var i = 0, n = cells.length, cell, halfedges, j, m; i < n; ++i) { + if ((cell = cells[i]) && (m = (halfedges = cell.halfedges).length)) { + var index = new Array(m), + array = new Array(m); + for (j = 0; j < m; ++j) index[j] = j, array[j] = cellHalfedgeAngle(cell, edges[halfedges[j]]); + index.sort(function(i, j) { return array[j] - array[i]; }); + for (j = 0; j < m; ++j) array[j] = halfedges[index[j]]; + for (j = 0; j < m; ++j) halfedges[j] = array[j]; } } +} - function clipCells(x0, y0, x1, y1) { - var nCells = cells.length, - iCell, - cell, - site, - iHalfedge, - halfedges, - nHalfedges, - start, - startX, - startY, - end, - endX, - endY, - cover = true; +function clipCells(x0, y0, x1, y1) { + var nCells = cells.length, + iCell, + cell, + site, + iHalfedge, + halfedges, + nHalfedges, + start, + startX, + startY, + end, + endX, + endY, + cover = true; - for (iCell = 0; iCell < nCells; ++iCell) { - if (cell = cells[iCell]) { - site = cell.site; - halfedges = cell.halfedges; - iHalfedge = halfedges.length; + for (iCell = 0; iCell < nCells; ++iCell) { + if (cell = cells[iCell]) { + site = cell.site; + halfedges = cell.halfedges; + iHalfedge = halfedges.length; - // Remove any dangling clipped edges. - while (iHalfedge--) { - if (!edges[halfedges[iHalfedge]]) { - halfedges.splice(iHalfedge, 1); - } + // Remove any dangling clipped edges. + while (iHalfedge--) { + if (!edges[halfedges[iHalfedge]]) { + halfedges.splice(iHalfedge, 1); } + } - // Insert any border edges as necessary. - iHalfedge = 0, nHalfedges = halfedges.length; - while (iHalfedge < nHalfedges) { - end = cellHalfedgeEnd(cell, edges[halfedges[iHalfedge]]), endX = end[0], endY = end[1]; - start = cellHalfedgeStart(cell, edges[halfedges[++iHalfedge % nHalfedges]]), startX = start[0], startY = start[1]; - if (Math.abs(endX - startX) > epsilon$3 || Math.abs(endY - startY) > epsilon$3) { - halfedges.splice(iHalfedge, 0, edges.push(createBorderEdge(site, end, - Math.abs(endX - x0) < epsilon$3 && y1 - endY > epsilon$3 ? [x0, Math.abs(startX - x0) < epsilon$3 ? startY : y1] - : Math.abs(endY - y1) < epsilon$3 && x1 - endX > epsilon$3 ? [Math.abs(startY - y1) < epsilon$3 ? startX : x1, y1] - : Math.abs(endX - x1) < epsilon$3 && endY - y0 > epsilon$3 ? [x1, Math.abs(startX - x1) < epsilon$3 ? startY : y0] - : Math.abs(endY - y0) < epsilon$3 && endX - x0 > epsilon$3 ? [Math.abs(startY - y0) < epsilon$3 ? startX : x0, y0] - : null)) - 1); - ++nHalfedges; - } + // Insert any border edges as necessary. + iHalfedge = 0, nHalfedges = halfedges.length; + while (iHalfedge < nHalfedges) { + end = cellHalfedgeEnd(cell, edges[halfedges[iHalfedge]]), endX = end[0], endY = end[1]; + start = cellHalfedgeStart(cell, edges[halfedges[++iHalfedge % nHalfedges]]), startX = start[0], startY = start[1]; + if (Math.abs(endX - startX) > epsilon$3 || Math.abs(endY - startY) > epsilon$3) { + halfedges.splice(iHalfedge, 0, edges.push(createBorderEdge(site, end, + Math.abs(endX - x0) < epsilon$3 && y1 - endY > epsilon$3 ? [x0, Math.abs(startX - x0) < epsilon$3 ? startY : y1] + : Math.abs(endY - y1) < epsilon$3 && x1 - endX > epsilon$3 ? [Math.abs(startY - y1) < epsilon$3 ? startX : x1, y1] + : Math.abs(endX - x1) < epsilon$3 && endY - y0 > epsilon$3 ? [x1, Math.abs(startX - x1) < epsilon$3 ? startY : y0] + : Math.abs(endY - y0) < epsilon$3 && endX - x0 > epsilon$3 ? [Math.abs(startY - y0) < epsilon$3 ? startX : x0, y0] + : null)) - 1); + ++nHalfedges; } - - if (nHalfedges) cover = false; } + + if (nHalfedges) cover = false; } + } - // If there weren’t any edges, have the closest site cover the extent. - // It doesn’t matter which corner of the extent we measure! - if (cover) { - var dx, dy, d2, dc = Infinity; + // If there weren’t any edges, have the closest site cover the extent. + // It doesn’t matter which corner of the extent we measure! + if (cover) { + var dx, dy, d2, dc = Infinity; - for (iCell = 0, cover = null; iCell < nCells; ++iCell) { - if (cell = cells[iCell]) { - site = cell.site; - dx = site[0] - x0; - dy = site[1] - y0; - d2 = dx * dx + dy * dy; - if (d2 < dc) dc = d2, cover = cell; - } + for (iCell = 0, cover = null; iCell < nCells; ++iCell) { + if (cell = cells[iCell]) { + site = cell.site; + dx = site[0] - x0; + dy = site[1] - y0; + d2 = dx * dx + dy * dy; + if (d2 < dc) dc = d2, cover = cell; } + } - if (cover) { - var v00 = [x0, y0], v01 = [x0, y1], v11 = [x1, y1], v10 = [x1, y0]; - cover.halfedges.push( - edges.push(createBorderEdge(site = cover.site, v00, v01)) - 1, - edges.push(createBorderEdge(site, v01, v11)) - 1, - edges.push(createBorderEdge(site, v11, v10)) - 1, - edges.push(createBorderEdge(site, v10, v00)) - 1 - ); - } + if (cover) { + var v00 = [x0, y0], v01 = [x0, y1], v11 = [x1, y1], v10 = [x1, y0]; + cover.halfedges.push( + edges.push(createBorderEdge(site = cover.site, v00, v01)) - 1, + edges.push(createBorderEdge(site, v01, v11)) - 1, + edges.push(createBorderEdge(site, v11, v10)) - 1, + edges.push(createBorderEdge(site, v10, v00)) - 1 + ); } + } - // Lastly delete any cells with no edges; these were entirely clipped. - for (iCell = 0; iCell < nCells; ++iCell) { - if (cell = cells[iCell]) { - if (!cell.halfedges.length) { - delete cells[iCell]; - } + // Lastly delete any cells with no edges; these were entirely clipped. + for (iCell = 0; iCell < nCells; ++iCell) { + if (cell = cells[iCell]) { + if (!cell.halfedges.length) { + delete cells[iCell]; } } } +} - var circlePool = []; +var circlePool = []; - var firstCircle; +var firstCircle; - function Circle() { - RedBlackNode(this); - this.x = - this.y = - this.arc = - this.site = - this.cy = null; - } +function Circle() { + RedBlackNode(this); + this.x = + this.y = + this.arc = + this.site = + this.cy = null; +} - function attachCircle(arc) { - var lArc = arc.P, - rArc = arc.N; +function attachCircle(arc) { + var lArc = arc.P, + rArc = arc.N; - if (!lArc || !rArc) return; + if (!lArc || !rArc) return; - var lSite = lArc.site, - cSite = arc.site, - rSite = rArc.site; + var lSite = lArc.site, + cSite = arc.site, + rSite = rArc.site; - if (lSite === rSite) return; + if (lSite === rSite) return; - var bx = cSite[0], - by = cSite[1], - ax = lSite[0] - bx, - ay = lSite[1] - by, - cx = rSite[0] - bx, - cy = rSite[1] - by; + var bx = cSite[0], + by = cSite[1], + ax = lSite[0] - bx, + ay = lSite[1] - by, + cx = rSite[0] - bx, + cy = rSite[1] - by; - var d = 2 * (ax * cy - ay * cx); - if (d >= -epsilon2$1) return; + var d = 2 * (ax * cy - ay * cx); + if (d >= -epsilon2$1) return; - var ha = ax * ax + ay * ay, - hc = cx * cx + cy * cy, - x = (cy * ha - ay * hc) / d, - y = (ax * hc - cx * ha) / d; + var ha = ax * ax + ay * ay, + hc = cx * cx + cy * cy, + x = (cy * ha - ay * hc) / d, + y = (ax * hc - cx * ha) / d; - var circle = circlePool.pop() || new Circle; - circle.arc = arc; - circle.site = cSite; - circle.x = x + bx; - circle.y = (circle.cy = y + by) + Math.sqrt(x * x + y * y); // y bottom + var circle = circlePool.pop() || new Circle; + circle.arc = arc; + circle.site = cSite; + circle.x = x + bx; + circle.y = (circle.cy = y + by) + Math.sqrt(x * x + y * y); // y bottom - arc.circle = circle; + arc.circle = circle; - var before = null, - node = circles._; + var before = null, + node = circles._; - while (node) { - if (circle.y < node.y || (circle.y === node.y && circle.x <= node.x)) { - if (node.L) node = node.L; - else { before = node.P; break; } - } else { - if (node.R) node = node.R; - else { before = node; break; } - } + while (node) { + if (circle.y < node.y || (circle.y === node.y && circle.x <= node.x)) { + if (node.L) node = node.L; + else { before = node.P; break; } + } else { + if (node.R) node = node.R; + else { before = node; break; } } - - circles.insert(before, circle); - if (!before) firstCircle = circle; } - function detachCircle(arc) { - var circle = arc.circle; - if (circle) { - if (!circle.P) firstCircle = circle.N; - circles.remove(circle); - circlePool.push(circle); - RedBlackNode(circle); - arc.circle = null; - } - } + circles.insert(before, circle); + if (!before) firstCircle = circle; +} - var beachPool = []; - - function Beach() { - RedBlackNode(this); - this.edge = - this.site = - this.circle = null; +function detachCircle(arc) { + var circle = arc.circle; + if (circle) { + if (!circle.P) firstCircle = circle.N; + circles.remove(circle); + circlePool.push(circle); + RedBlackNode(circle); + arc.circle = null; } +} - function createBeach(site) { - var beach = beachPool.pop() || new Beach; - beach.site = site; - return beach; - } +var beachPool = []; - function detachBeach(beach) { - detachCircle(beach); - beaches.remove(beach); - beachPool.push(beach); - RedBlackNode(beach); - } +function Beach() { + RedBlackNode(this); + this.edge = + this.site = + this.circle = null; +} - function removeBeach(beach) { - var circle = beach.circle, - x = circle.x, - y = circle.cy, - vertex = [x, y], - previous = beach.P, - next = beach.N, - disappearing = [beach]; +function createBeach(site) { + var beach = beachPool.pop() || new Beach; + beach.site = site; + return beach; +} - detachBeach(beach); +function detachBeach(beach) { + detachCircle(beach); + beaches.remove(beach); + beachPool.push(beach); + RedBlackNode(beach); +} - var lArc = previous; - while (lArc.circle - && Math.abs(x - lArc.circle.x) < epsilon$3 - && Math.abs(y - lArc.circle.cy) < epsilon$3) { - previous = lArc.P; - disappearing.unshift(lArc); - detachBeach(lArc); - lArc = previous; - } +function removeBeach(beach) { + var circle = beach.circle, + x = circle.x, + y = circle.cy, + vertex = [x, y], + previous = beach.P, + next = beach.N, + disappearing = [beach]; + detachBeach(beach); + + var lArc = previous; + while (lArc.circle + && Math.abs(x - lArc.circle.x) < epsilon$3 + && Math.abs(y - lArc.circle.cy) < epsilon$3) { + previous = lArc.P; disappearing.unshift(lArc); - detachCircle(lArc); + detachBeach(lArc); + lArc = previous; + } - var rArc = next; - while (rArc.circle - && Math.abs(x - rArc.circle.x) < epsilon$3 - && Math.abs(y - rArc.circle.cy) < epsilon$3) { - next = rArc.N; - disappearing.push(rArc); - detachBeach(rArc); - rArc = next; - } + disappearing.unshift(lArc); + detachCircle(lArc); + var rArc = next; + while (rArc.circle + && Math.abs(x - rArc.circle.x) < epsilon$3 + && Math.abs(y - rArc.circle.cy) < epsilon$3) { + next = rArc.N; disappearing.push(rArc); - detachCircle(rArc); + detachBeach(rArc); + rArc = next; + } - var nArcs = disappearing.length, - iArc; - for (iArc = 1; iArc < nArcs; ++iArc) { - rArc = disappearing[iArc]; - lArc = disappearing[iArc - 1]; - setEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex); - } + disappearing.push(rArc); + detachCircle(rArc); - lArc = disappearing[0]; - rArc = disappearing[nArcs - 1]; - rArc.edge = createEdge(lArc.site, rArc.site, null, vertex); - - attachCircle(lArc); - attachCircle(rArc); + var nArcs = disappearing.length, + iArc; + for (iArc = 1; iArc < nArcs; ++iArc) { + rArc = disappearing[iArc]; + lArc = disappearing[iArc - 1]; + setEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex); } - function addBeach(site) { - var x = site[0], - directrix = site[1], - lArc, - rArc, - dxl, - dxr, - node = beaches._; + lArc = disappearing[0]; + rArc = disappearing[nArcs - 1]; + rArc.edge = createEdge(lArc.site, rArc.site, null, vertex); - while (node) { - dxl = leftBreakPoint(node, directrix) - x; - if (dxl > epsilon$3) node = node.L; else { - dxr = x - rightBreakPoint(node, directrix); - if (dxr > epsilon$3) { - if (!node.R) { - lArc = node; - break; - } - node = node.R; - } else { - if (dxl > -epsilon$3) { - lArc = node.P; - rArc = node; - } else if (dxr > -epsilon$3) { - lArc = node; - rArc = node.N; - } else { - lArc = rArc = node; - } + attachCircle(lArc); + attachCircle(rArc); +} + +function addBeach(site) { + var x = site[0], + directrix = site[1], + lArc, + rArc, + dxl, + dxr, + node = beaches._; + + while (node) { + dxl = leftBreakPoint(node, directrix) - x; + if (dxl > epsilon$3) node = node.L; else { + dxr = x - rightBreakPoint(node, directrix); + if (dxr > epsilon$3) { + if (!node.R) { + lArc = node; break; } + node = node.R; + } else { + if (dxl > -epsilon$3) { + lArc = node.P; + rArc = node; + } else if (dxr > -epsilon$3) { + lArc = node; + rArc = node.N; + } else { + lArc = rArc = node; + } + break; } } + } - createCell(site); - var newArc = createBeach(site); - beaches.insert(lArc, newArc); + createCell(site); + var newArc = createBeach(site); + beaches.insert(lArc, newArc); - if (!lArc && !rArc) return; + if (!lArc && !rArc) return; - if (lArc === rArc) { - detachCircle(lArc); - rArc = createBeach(lArc.site); - beaches.insert(newArc, rArc); - newArc.edge = rArc.edge = createEdge(lArc.site, newArc.site); - attachCircle(lArc); - attachCircle(rArc); - return; - } - - if (!rArc) { // && lArc - newArc.edge = createEdge(lArc.site, newArc.site); - return; - } - - // else lArc !== rArc + if (lArc === rArc) { detachCircle(lArc); - detachCircle(rArc); - - var lSite = lArc.site, - ax = lSite[0], - ay = lSite[1], - bx = site[0] - ax, - by = site[1] - ay, - rSite = rArc.site, - cx = rSite[0] - ax, - cy = rSite[1] - ay, - d = 2 * (bx * cy - by * cx), - hb = bx * bx + by * by, - hc = cx * cx + cy * cy, - vertex = [(cy * hb - by * hc) / d + ax, (bx * hc - cx * hb) / d + ay]; - - setEdgeEnd(rArc.edge, lSite, rSite, vertex); - newArc.edge = createEdge(lSite, site, null, vertex); - rArc.edge = createEdge(site, rSite, null, vertex); + rArc = createBeach(lArc.site); + beaches.insert(newArc, rArc); + newArc.edge = rArc.edge = createEdge(lArc.site, newArc.site); attachCircle(lArc); attachCircle(rArc); + return; } - function leftBreakPoint(arc, directrix) { - var site = arc.site, - rfocx = site[0], - rfocy = site[1], - pby2 = rfocy - directrix; + if (!rArc) { // && lArc + newArc.edge = createEdge(lArc.site, newArc.site); + return; + } - if (!pby2) return rfocx; + // else lArc !== rArc + detachCircle(lArc); + detachCircle(rArc); - var lArc = arc.P; - if (!lArc) return -Infinity; + var lSite = lArc.site, + ax = lSite[0], + ay = lSite[1], + bx = site[0] - ax, + by = site[1] - ay, + rSite = rArc.site, + cx = rSite[0] - ax, + cy = rSite[1] - ay, + d = 2 * (bx * cy - by * cx), + hb = bx * bx + by * by, + hc = cx * cx + cy * cy, + vertex = [(cy * hb - by * hc) / d + ax, (bx * hc - cx * hb) / d + ay]; - site = lArc.site; - var lfocx = site[0], - lfocy = site[1], - plby2 = lfocy - directrix; + setEdgeEnd(rArc.edge, lSite, rSite, vertex); + newArc.edge = createEdge(lSite, site, null, vertex); + rArc.edge = createEdge(site, rSite, null, vertex); + attachCircle(lArc); + attachCircle(rArc); +} - if (!plby2) return lfocx; +function leftBreakPoint(arc, directrix) { + var site = arc.site, + rfocx = site[0], + rfocy = site[1], + pby2 = rfocy - directrix; - var hl = lfocx - rfocx, - aby2 = 1 / pby2 - 1 / plby2, - b = hl / plby2; + if (!pby2) return rfocx; - if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx; + var lArc = arc.P; + if (!lArc) return -Infinity; - return (rfocx + lfocx) / 2; - } + site = lArc.site; + var lfocx = site[0], + lfocy = site[1], + plby2 = lfocy - directrix; - function rightBreakPoint(arc, directrix) { - var rArc = arc.N; - if (rArc) return leftBreakPoint(rArc, directrix); - var site = arc.site; - return site[1] === directrix ? site[0] : Infinity; - } + if (!plby2) return lfocx; - var epsilon$3 = 1e-6; - var epsilon2$1 = 1e-12; - var beaches; - var cells; - var circles; - var edges; + var hl = lfocx - rfocx, + aby2 = 1 / pby2 - 1 / plby2, + b = hl / plby2; - function triangleArea(a, b, c) { - return (a[0] - c[0]) * (b[1] - a[1]) - (a[0] - b[0]) * (c[1] - a[1]); - } + if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx; - function lexicographic(a, b) { - return b[1] - a[1] - || b[0] - a[0]; - } + return (rfocx + lfocx) / 2; +} - function Diagram(sites, extent) { - var site = sites.sort(lexicographic).pop(), - x, - y, - circle; +function rightBreakPoint(arc, directrix) { + var rArc = arc.N; + if (rArc) return leftBreakPoint(rArc, directrix); + var site = arc.site; + return site[1] === directrix ? site[0] : Infinity; +} - edges = []; - cells = new Array(sites.length); - beaches = new RedBlackTree; - circles = new RedBlackTree; +var epsilon$3 = 1e-6; +var epsilon2$1 = 1e-12; +var beaches; +var cells; +var circles; +var edges; - while (true) { - circle = firstCircle; - if (site && (!circle || site[1] < circle.y || (site[1] === circle.y && site[0] < circle.x))) { - if (site[0] !== x || site[1] !== y) { - addBeach(site); - x = site[0], y = site[1]; - } - site = sites.pop(); - } else if (circle) { - removeBeach(circle.arc); - } else { - break; - } - } +function triangleArea(a, b, c) { + return (a[0] - c[0]) * (b[1] - a[1]) - (a[0] - b[0]) * (c[1] - a[1]); +} - sortCellHalfedges(); +function lexicographic(a, b) { + return b[1] - a[1] + || b[0] - a[0]; +} - if (extent) { - var x0 = +extent[0][0], - y0 = +extent[0][1], - x1 = +extent[1][0], - y1 = +extent[1][1]; - clipEdges(x0, y0, x1, y1); - clipCells(x0, y0, x1, y1); +function Diagram(sites, extent) { + var site = sites.sort(lexicographic).pop(), + x, + y, + circle; + + edges = []; + cells = new Array(sites.length); + beaches = new RedBlackTree; + circles = new RedBlackTree; + + while (true) { + circle = firstCircle; + if (site && (!circle || site[1] < circle.y || (site[1] === circle.y && site[0] < circle.x))) { + if (site[0] !== x || site[1] !== y) { + addBeach(site); + x = site[0], y = site[1]; + } + site = sites.pop(); + } else if (circle) { + removeBeach(circle.arc); + } else { + break; } + } - this.edges = edges; - this.cells = cells; + sortCellHalfedges(); - beaches = - circles = - edges = - cells = null; + if (extent) { + var x0 = +extent[0][0], + y0 = +extent[0][1], + x1 = +extent[1][0], + y1 = +extent[1][1]; + clipEdges(x0, y0, x1, y1); + clipCells(x0, y0, x1, y1); } - Diagram.prototype = { - constructor: Diagram, + this.edges = edges; + this.cells = cells; - polygons: function() { - var edges = this.edges; + beaches = + circles = + edges = + cells = null; +} - return this.cells.map(function(cell) { - var polygon = cell.halfedges.map(function(i) { return cellHalfedgeStart(cell, edges[i]); }); - polygon.data = cell.site.data; - return polygon; - }); - }, +Diagram.prototype = { + constructor: Diagram, - triangles: function() { - var triangles = [], - edges = this.edges; + polygons: function() { + var edges = this.edges; - this.cells.forEach(function(cell, i) { - var site = cell.site, - halfedges = cell.halfedges, - j = -1, - m = halfedges.length, - s0, - e1 = edges[halfedges[m - 1]], - s1 = e1.left === site ? e1.right : e1.left; + return this.cells.map(function(cell) { + var polygon = cell.halfedges.map(function(i) { return cellHalfedgeStart(cell, edges[i]); }); + polygon.data = cell.site.data; + return polygon; + }); + }, - while (++j < m) { - s0 = s1; - e1 = edges[halfedges[j]]; + triangles: function() { + var triangles = [], + edges = this.edges; + + this.cells.forEach(function(cell, i) { + var site = cell.site, + halfedges = cell.halfedges, + j = -1, + m = halfedges.length, + s0, + e1 = edges[halfedges[m - 1]], s1 = e1.left === site ? e1.right : e1.left; - if (i < s0.index && i < s1.index && triangleArea(site, s0, s1) < 0) { - triangles.push([site.data, s0.data, s1.data]); - } + + while (++j < m) { + s0 = s1; + e1 = edges[halfedges[j]]; + s1 = e1.left === site ? e1.right : e1.left; + if (i < s0.index && i < s1.index && triangleArea(site, s0, s1) < 0) { + triangles.push([site.data, s0.data, s1.data]); } - }); + } + }); - return triangles; - }, + return triangles; + }, - links: function() { - return this.edges.filter(function(edge) { - return edge.right; - }).map(function(edge) { - return { - source: edge.left.data, - target: edge.right.data - }; - }); - } + links: function() { + return this.edges.filter(function(edge) { + return edge.right; + }).map(function(edge) { + return { + source: edge.left.data, + target: edge.right.data + }; + }); } +} - function voronoi() { - var x = x$4, - y = y$4, - extent = null; +var voronoi = function() { + var x$$1 = x$4, + y$$1 = y$4, + extent = null; - function voronoi(data) { - return new Diagram(data.map(function(d, i) { - var s = [Math.round(x(d, i, data) / epsilon$3) * epsilon$3, Math.round(y(d, i, data) / epsilon$3) * epsilon$3]; - s.index = i; - s.data = d; - return s; - }), extent); - } + function voronoi(data) { + return new Diagram(data.map(function(d, i) { + var s = [Math.round(x$$1(d, i, data) / epsilon$3) * epsilon$3, Math.round(y$$1(d, i, data) / epsilon$3) * epsilon$3]; + s.index = i; + s.data = d; + return s; + }), extent); + } - voronoi.polygons = function(data) { - return voronoi(data).polygons(); - }; + voronoi.polygons = function(data) { + return voronoi(data).polygons(); + }; - voronoi.links = function(data) { - return voronoi(data).links(); - }; + voronoi.links = function(data) { + return voronoi(data).links(); + }; - voronoi.triangles = function(data) { - return voronoi(data).triangles(); - }; + voronoi.triangles = function(data) { + return voronoi(data).triangles(); + }; - voronoi.x = function(_) { - return arguments.length ? (x = typeof _ === "function" ? _ : constant$8(+_), voronoi) : x; - }; + voronoi.x = function(_) { + return arguments.length ? (x$$1 = typeof _ === "function" ? _ : constant$9(+_), voronoi) : x$$1; + }; - voronoi.y = function(_) { - return arguments.length ? (y = typeof _ === "function" ? _ : constant$8(+_), voronoi) : y; - }; + voronoi.y = function(_) { + return arguments.length ? (y$$1 = typeof _ === "function" ? _ : constant$9(+_), voronoi) : y$$1; + }; - voronoi.extent = function(_) { - return arguments.length ? (extent = _ == null ? null : [[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]], voronoi) : extent && [[extent[0][0], extent[0][1]], [extent[1][0], extent[1][1]]]; - }; + voronoi.extent = function(_) { + return arguments.length ? (extent = _ == null ? null : [[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]], voronoi) : extent && [[extent[0][0], extent[0][1]], [extent[1][0], extent[1][1]]]; + }; - voronoi.size = function(_) { - return arguments.length ? (extent = _ == null ? null : [[0, 0], [+_[0], +_[1]]], voronoi) : extent && [extent[1][0] - extent[0][0], extent[1][1] - extent[0][1]]; - }; + voronoi.size = function(_) { + return arguments.length ? (extent = _ == null ? null : [[0, 0], [+_[0], +_[1]]], voronoi) : extent && [extent[1][0] - extent[0][0], extent[1][1] - extent[0][1]]; + }; - return voronoi; - } + return voronoi; +} - function constant$9(x) { - return function() { - return x; - }; - } +var constant$10 = function(x) { + return function() { + return x; + }; +} - function ZoomEvent(target, type, transform) { - this.target = target; - this.type = type; - this.transform = transform; - } +function ZoomEvent(target, type, transform) { + this.target = target; + this.type = type; + this.transform = transform; +} - function Transform(k, x, y) { - this.k = k; - this.x = x; - this.y = y; +function Transform(k, x, y) { + this.k = k; + this.x = x; + this.y = y; +} + +Transform.prototype = { + constructor: Transform, + scale: function(k) { + return k === 1 ? this : new Transform(this.k * k, this.x, this.y); + }, + translate: function(x, y) { + return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y); + }, + apply: function(point) { + return [point[0] * this.k + this.x, point[1] * this.k + this.y]; + }, + applyX: function(x) { + return x * this.k + this.x; + }, + applyY: function(y) { + return y * this.k + this.y; + }, + invert: function(location) { + return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k]; + }, + invertX: function(x) { + return (x - this.x) / this.k; + }, + invertY: function(y) { + return (y - this.y) / this.k; + }, + rescaleX: function(x) { + return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x)); + }, + rescaleY: function(y) { + return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y)); + }, + toString: function() { + return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")"; } +}; - Transform.prototype = { - constructor: Transform, - scale: function(k) { - return k === 1 ? this : new Transform(this.k * k, this.x, this.y); - }, - translate: function(x, y) { - return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y); - }, - apply: function(point) { - return [point[0] * this.k + this.x, point[1] * this.k + this.y]; - }, - applyX: function(x) { - return x * this.k + this.x; - }, - applyY: function(y) { - return y * this.k + this.y; - }, - invert: function(location) { - return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k]; - }, - invertX: function(x) { - return (x - this.x) / this.k; - }, - invertY: function(y) { - return (y - this.y) / this.k; - }, - rescaleX: function(x) { - return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x)); - }, - rescaleY: function(y) { - return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y)); - }, - toString: function() { - return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")"; - } - }; +var identity$6 = new Transform(1, 0, 0); - var identity$6 = new Transform(1, 0, 0); +transform.prototype = Transform.prototype; - transform.prototype = Transform.prototype; +function transform(node) { + return node.__zoom || identity$6; +} - function transform(node) { - return node.__zoom || identity$6; - } +function nopropagation$1() { + exports.event.stopImmediatePropagation(); +} - function nopropagation$1() { - exports.event.stopImmediatePropagation(); - } +var noevent$1 = function() { + exports.event.preventDefault(); + exports.event.stopImmediatePropagation(); +} - function noevent$1() { - exports.event.preventDefault(); - exports.event.stopImmediatePropagation(); - } +// Ignore right-click, since that should open the context menu. +function defaultFilter$1() { + return !exports.event.button; +} - // Ignore right-click, since that should open the context menu. - function defaultFilter$1() { - return !exports.event.button; +function defaultExtent() { + var e = this, w, h; + if (e instanceof SVGElement) { + e = e.ownerSVGElement || e; + w = e.width.baseVal.value; + h = e.height.baseVal.value; + } else { + w = e.clientWidth; + h = e.clientHeight; } + return [[0, 0], [w, h]]; +} - function defaultExtent() { - var e = this, w, h; - if (e instanceof SVGElement) { - e = e.ownerSVGElement || e; - w = e.width.baseVal.value; - h = e.height.baseVal.value; - } else { - w = e.clientWidth; - h = e.clientHeight; - } - return [[0, 0], [w, h]]; - } +function defaultTransform() { + return this.__zoom || identity$6; +} - function defaultTransform() { - return this.__zoom || identity$6; +var zoom = function() { + var filter = defaultFilter$1, + extent = defaultExtent, + k0 = 0, + k1 = Infinity, + x0 = -k1, + x1 = k1, + y0 = x0, + y1 = x1, + duration = 250, + gestures = [], + listeners = dispatch("start", "zoom", "end"), + touchstarting, + touchending, + touchDelay = 500, + wheelDelay = 150; + + function zoom(selection$$1) { + selection$$1 + .on("wheel.zoom", wheeled) + .on("mousedown.zoom", mousedowned) + .on("dblclick.zoom", dblclicked) + .on("touchstart.zoom", touchstarted) + .on("touchmove.zoom", touchmoved) + .on("touchend.zoom touchcancel.zoom", touchended) + .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)") + .property("__zoom", defaultTransform); } - function zoom() { - var filter = defaultFilter$1, - extent = defaultExtent, - k0 = 0, - k1 = Infinity, - x0 = -k1, - x1 = k1, - y0 = x0, - y1 = x1, - duration = 250, - gestures = [], - listeners = dispatch("start", "zoom", "end"), - touchstarting, - touchending, - touchDelay = 500, - wheelDelay = 150; - - function zoom(selection) { - selection - .on("wheel.zoom", wheeled) - .on("mousedown.zoom", mousedowned) - .on("dblclick.zoom", dblclicked) - .on("touchstart.zoom", touchstarted) - .on("touchmove.zoom", touchmoved) - .on("touchend.zoom touchcancel.zoom", touchended) - .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)") - .property("__zoom", defaultTransform); + zoom.transform = function(collection, transform) { + var selection$$1 = collection.selection ? collection.selection() : collection; + selection$$1.property("__zoom", defaultTransform); + if (collection !== selection$$1) { + schedule(collection, transform); + } else { + selection$$1.interrupt().each(function() { + gesture(this, arguments) + .start() + .zoom(null, typeof transform === "function" ? transform.apply(this, arguments) : transform) + .end(); + }); } + }; - zoom.transform = function(collection, transform) { - var selection = collection.selection ? collection.selection() : collection; - selection.property("__zoom", defaultTransform); - if (collection !== selection) { - schedule(collection, transform); - } else { - selection.interrupt().each(function() { - gesture(this, arguments) - .start() - .zoom(null, typeof transform === "function" ? transform.apply(this, arguments) : transform) - .end(); - }); - } - }; + zoom.scaleBy = function(selection$$1, k) { + zoom.scaleTo(selection$$1, function() { + var k0 = this.__zoom.k, + k1 = typeof k === "function" ? k.apply(this, arguments) : k; + return k0 * k1; + }); + }; - zoom.scaleBy = function(selection, k) { - zoom.scaleTo(selection, function() { - var k0 = this.__zoom.k, - k1 = typeof k === "function" ? k.apply(this, arguments) : k; - return k0 * k1; - }); - }; + zoom.scaleTo = function(selection$$1, k) { + zoom.transform(selection$$1, function() { + var e = extent.apply(this, arguments), + t0 = this.__zoom, + p0 = centroid(e), + p1 = t0.invert(p0), + k1 = typeof k === "function" ? k.apply(this, arguments) : k; + return constrain(translate(scale(t0, k1), p0, p1), e); + }); + }; - zoom.scaleTo = function(selection, k) { - zoom.transform(selection, function() { - var e = extent.apply(this, arguments), - t0 = this.__zoom, - p0 = centroid(e), - p1 = t0.invert(p0), - k1 = typeof k === "function" ? k.apply(this, arguments) : k; - return constrain(translate(scale(t0, k1), p0, p1), e); - }); - }; + zoom.translateBy = function(selection$$1, x, y) { + zoom.transform(selection$$1, function() { + return constrain(this.__zoom.translate( + typeof x === "function" ? x.apply(this, arguments) : x, + typeof y === "function" ? y.apply(this, arguments) : y + ), extent.apply(this, arguments)); + }); + }; - zoom.translateBy = function(selection, x, y) { - zoom.transform(selection, function() { - return constrain(this.__zoom.translate( - typeof x === "function" ? x.apply(this, arguments) : x, - typeof y === "function" ? y.apply(this, arguments) : y - ), extent.apply(this, arguments)); - }); - }; + function scale(transform, k) { + k = Math.max(k0, Math.min(k1, k)); + return k === transform.k ? transform : new Transform(k, transform.x, transform.y); + } - function scale(transform, k) { - k = Math.max(k0, Math.min(k1, k)); - return k === transform.k ? transform : new Transform(k, transform.x, transform.y); - } + function translate(transform, p0, p1) { + var x = p0[0] - p1[0] * transform.k, y = p0[1] - p1[1] * transform.k; + return x === transform.x && y === transform.y ? transform : new Transform(transform.k, x, y); + } - function translate(transform, p0, p1) { - var x = p0[0] - p1[0] * transform.k, y = p0[1] - p1[1] * transform.k; - return x === transform.x && y === transform.y ? transform : new Transform(transform.k, x, y); - } + function constrain(transform, extent) { + var dx = Math.min(0, transform.invertX(extent[0][0]) - x0) || Math.max(0, transform.invertX(extent[1][0]) - x1), + dy = Math.min(0, transform.invertY(extent[0][1]) - y0) || Math.max(0, transform.invertY(extent[1][1]) - y1); + return dx || dy ? transform.translate(dx, dy) : transform; + } - function constrain(transform, extent) { - var dx = Math.min(0, transform.invertX(extent[0][0]) - x0) || Math.max(0, transform.invertX(extent[1][0]) - x1), - dy = Math.min(0, transform.invertY(extent[0][1]) - y0) || Math.max(0, transform.invertY(extent[1][1]) - y1); - return dx || dy ? transform.translate(dx, dy) : transform; - } + function centroid(extent) { + return [(+extent[0][0] + +extent[1][0]) / 2, (+extent[0][1] + +extent[1][1]) / 2]; + } - function centroid(extent) { - return [(+extent[0][0] + +extent[1][0]) / 2, (+extent[0][1] + +extent[1][1]) / 2]; - } + function schedule(transition$$1, transform, center) { + transition$$1 + .on("start.zoom", function() { gesture(this, arguments).start(); }) + .on("interrupt.zoom end.zoom", function() { gesture(this, arguments).end(); }) + .tween("zoom", function() { + var that = this, + args = arguments, + g = gesture(that, args), + e = extent.apply(that, args), + p = center || centroid(e), + w = Math.max(e[1][0] - e[0][0], e[1][1] - e[0][1]), + a = that.__zoom, + b = typeof transform === "function" ? transform.apply(that, args) : transform, + i = interpolateZoom(a.invert(p).concat(w / a.k), b.invert(p).concat(w / b.k)); + return function(t) { + if (t === 1) t = b; // Avoid rounding error on end. + else { var l = i(t), k = w / l[2]; t = new Transform(k, p[0] - l[0] * k, p[1] - l[1] * k); } + g.zoom(null, t); + }; + }); + } - function schedule(transition, transform, center) { - transition - .on("start.zoom", function() { gesture(this, arguments).start(); }) - .on("interrupt.zoom end.zoom", function() { gesture(this, arguments).end(); }) - .tween("zoom", function() { - var that = this, - args = arguments, - g = gesture(that, args), - e = extent.apply(that, args), - p = center || centroid(e), - w = Math.max(e[1][0] - e[0][0], e[1][1] - e[0][1]), - a = that.__zoom, - b = typeof transform === "function" ? transform.apply(that, args) : transform, - i = interpolateZoom(a.invert(p).concat(w / a.k), b.invert(p).concat(w / b.k)); - return function(t) { - if (t === 1) t = b; // Avoid rounding error on end. - else { var l = i(t), k = w / l[2]; t = new Transform(k, p[0] - l[0] * k, p[1] - l[1] * k); } - g.zoom(null, t); - }; - }); - } - - function gesture(that, args) { - for (var i = 0, n = gestures.length, g; i < n; ++i) { - if ((g = gestures[i]).that === that) { - return g; - } + function gesture(that, args) { + for (var i = 0, n = gestures.length, g; i < n; ++i) { + if ((g = gestures[i]).that === that) { + return g; } - return new Gesture(that, args); } + return new Gesture(that, args); + } - function Gesture(that, args) { - this.that = that; - this.args = args; - this.index = -1; - this.active = 0; - this.extent = extent.apply(that, args); - } + function Gesture(that, args) { + this.that = that; + this.args = args; + this.index = -1; + this.active = 0; + this.extent = extent.apply(that, args); + } - Gesture.prototype = { - start: function() { - if (++this.active === 1) { - this.index = gestures.push(this) - 1; - this.emit("start"); - } - return this; - }, - zoom: function(key, transform) { - if (this.mouse && key !== "mouse") this.mouse[1] = transform.invert(this.mouse[0]); - if (this.touch0 && key !== "touch") this.touch0[1] = transform.invert(this.touch0[0]); - if (this.touch1 && key !== "touch") this.touch1[1] = transform.invert(this.touch1[0]); - this.that.__zoom = transform; - this.emit("zoom"); - return this; - }, - end: function() { - if (--this.active === 0) { - gestures.splice(this.index, 1); - this.index = -1; - this.emit("end"); - } - return this; - }, - emit: function(type) { - customEvent(new ZoomEvent(zoom, type, this.that.__zoom), listeners.apply, listeners, [type, this.that, this.args]); + Gesture.prototype = { + start: function() { + if (++this.active === 1) { + this.index = gestures.push(this) - 1; + this.emit("start"); } - }; - - function wheeled() { - if (!filter.apply(this, arguments)) return; - var g = gesture(this, arguments), - t = this.__zoom, - k = Math.max(k0, Math.min(k1, t.k * Math.pow(2, -exports.event.deltaY * (exports.event.deltaMode ? 120 : 1) / 500))), - p = mouse(this); - - // If the mouse is in the same location as before, reuse it. - // If there were recent wheel events, reset the wheel idle timeout. - if (g.wheel) { - if (g.mouse[0][0] !== p[0] || g.mouse[0][1] !== p[1]) { - g.mouse[1] = t.invert(g.mouse[0] = p); - } - clearTimeout(g.wheel); + return this; + }, + zoom: function(key, transform) { + if (this.mouse && key !== "mouse") this.mouse[1] = transform.invert(this.mouse[0]); + if (this.touch0 && key !== "touch") this.touch0[1] = transform.invert(this.touch0[0]); + if (this.touch1 && key !== "touch") this.touch1[1] = transform.invert(this.touch1[0]); + this.that.__zoom = transform; + this.emit("zoom"); + return this; + }, + end: function() { + if (--this.active === 0) { + gestures.splice(this.index, 1); + this.index = -1; + this.emit("end"); } + return this; + }, + emit: function(type) { + customEvent(new ZoomEvent(zoom, type, this.that.__zoom), listeners.apply, listeners, [type, this.that, this.args]); + } + }; - // If this wheel event won’t trigger a transform change, ignore it. - else if (t.k === k) return; + function wheeled() { + if (!filter.apply(this, arguments)) return; + var g = gesture(this, arguments), + t = this.__zoom, + k = Math.max(k0, Math.min(k1, t.k * Math.pow(2, -exports.event.deltaY * (exports.event.deltaMode ? 120 : 1) / 500))), + p = mouse(this); - // Otherwise, capture the mouse point and location at the start. - else { - g.mouse = [p, t.invert(p)]; - interrupt(this); - g.start(); + // If the mouse is in the same location as before, reuse it. + // If there were recent wheel events, reset the wheel idle timeout. + if (g.wheel) { + if (g.mouse[0][0] !== p[0] || g.mouse[0][1] !== p[1]) { + g.mouse[1] = t.invert(g.mouse[0] = p); } - - noevent$1(); - g.wheel = setTimeout(wheelidled, wheelDelay); - g.zoom("mouse", constrain(translate(scale(t, k), g.mouse[0], g.mouse[1]), g.extent)); - - function wheelidled() { - g.wheel = null; - g.end(); - } + clearTimeout(g.wheel); } - function mousedowned() { - if (touchending || !filter.apply(this, arguments)) return; - var g = gesture(this, arguments), - v = select(exports.event.view).on("mousemove.zoom", mousemoved, true).on("mouseup.zoom", mouseupped, true), - p = mouse(this); + // If this wheel event won’t trigger a transform change, ignore it. + else if (t.k === k) return; - dragDisable(exports.event.view); - nopropagation$1(); - g.mouse = [p, this.__zoom.invert(p)]; + // Otherwise, capture the mouse point and location at the start. + else { + g.mouse = [p, t.invert(p)]; interrupt(this); g.start(); - - function mousemoved() { - noevent$1(); - g.moved = true; - g.zoom("mouse", constrain(translate(g.that.__zoom, g.mouse[0] = mouse(g.that), g.mouse[1]), g.extent)); - } - - function mouseupped() { - v.on("mousemove.zoom mouseup.zoom", null); - dragEnable(exports.event.view, g.moved); - noevent$1(); - g.end(); - } } - function dblclicked() { - if (!filter.apply(this, arguments)) return; - var t0 = this.__zoom, - p0 = mouse(this), - p1 = t0.invert(p0), - k1 = t0.k * (exports.event.shiftKey ? 0.5 : 2), - t1 = constrain(translate(scale(t0, k1), p0, p1), extent.apply(this, arguments)); + noevent$1(); + g.wheel = setTimeout(wheelidled, wheelDelay); + g.zoom("mouse", constrain(translate(scale(t, k), g.mouse[0], g.mouse[1]), g.extent)); - noevent$1(); - if (duration > 0) select(this).transition().duration(duration).call(schedule, t1, p0); - else select(this).call(zoom.transform, t1); + function wheelidled() { + g.wheel = null; + g.end(); } + } - function touchstarted() { - if (!filter.apply(this, arguments)) return; - var g = gesture(this, arguments), - touches = exports.event.changedTouches, - n = touches.length, i, t, p; + function mousedowned() { + if (touchending || !filter.apply(this, arguments)) return; + var g = gesture(this, arguments), + v = select(exports.event.view).on("mousemove.zoom", mousemoved, true).on("mouseup.zoom", mouseupped, true), + p = mouse(this); - nopropagation$1(); - for (i = 0; i < n; ++i) { - t = touches[i], p = touch(this, touches, t.identifier); - p = [p, this.__zoom.invert(p), t.identifier]; - if (!g.touch0) g.touch0 = p; - else if (!g.touch1) g.touch1 = p; - } - if (touchstarting) { - touchstarting = clearTimeout(touchstarting); - if (!g.touch1) return g.end(), dblclicked.apply(this, arguments); - } - if (exports.event.touches.length === n) { - touchstarting = setTimeout(function() { touchstarting = null; }, touchDelay); - interrupt(this); - g.start(); - } - } + dragDisable(exports.event.view); + nopropagation$1(); + g.mouse = [p, this.__zoom.invert(p)]; + interrupt(this); + g.start(); - function touchmoved() { - var g = gesture(this, arguments), - touches = exports.event.changedTouches, - n = touches.length, i, t, p, l; - + function mousemoved() { noevent$1(); - if (touchstarting) touchstarting = clearTimeout(touchstarting); - for (i = 0; i < n; ++i) { - t = touches[i], p = touch(this, touches, t.identifier); - if (g.touch0 && g.touch0[2] === t.identifier) g.touch0[0] = p; - else if (g.touch1 && g.touch1[2] === t.identifier) g.touch1[0] = p; - } - t = g.that.__zoom; - if (g.touch1) { - var p0 = g.touch0[0], l0 = g.touch0[1], - p1 = g.touch1[0], l1 = g.touch1[1], - dp = (dp = p1[0] - p0[0]) * dp + (dp = p1[1] - p0[1]) * dp, - dl = (dl = l1[0] - l0[0]) * dl + (dl = l1[1] - l0[1]) * dl; - t = scale(t, Math.sqrt(dp / dl)); - p = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2]; - l = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2]; - } - else if (g.touch0) p = g.touch0[0], l = g.touch0[1]; - else return; - g.zoom("touch", constrain(translate(t, p, l), g.extent)); + g.moved = true; + g.zoom("mouse", constrain(translate(g.that.__zoom, g.mouse[0] = mouse(g.that), g.mouse[1]), g.extent)); } - function touchended() { - var g = gesture(this, arguments), - touches = exports.event.changedTouches, - n = touches.length, i, t; - - nopropagation$1(); - if (touchending) clearTimeout(touchending); - touchending = setTimeout(function() { touchending = null; }, touchDelay); - for (i = 0; i < n; ++i) { - t = touches[i]; - if (g.touch0 && g.touch0[2] === t.identifier) delete g.touch0; - else if (g.touch1 && g.touch1[2] === t.identifier) delete g.touch1; - } - if (g.touch1 && !g.touch0) g.touch0 = g.touch1, delete g.touch1; - if (!g.touch0) g.end(); + function mouseupped() { + v.on("mousemove.zoom mouseup.zoom", null); + yesdrag(exports.event.view, g.moved); + noevent$1(); + g.end(); } + } - zoom.filter = function(_) { - return arguments.length ? (filter = typeof _ === "function" ? _ : constant$9(!!_), zoom) : filter; - }; + function dblclicked() { + if (!filter.apply(this, arguments)) return; + var t0 = this.__zoom, + p0 = mouse(this), + p1 = t0.invert(p0), + k1 = t0.k * (exports.event.shiftKey ? 0.5 : 2), + t1 = constrain(translate(scale(t0, k1), p0, p1), extent.apply(this, arguments)); - zoom.extent = function(_) { - return arguments.length ? (extent = typeof _ === "function" ? _ : constant$9([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), zoom) : extent; - }; + noevent$1(); + if (duration > 0) select(this).transition().duration(duration).call(schedule, t1, p0); + else select(this).call(zoom.transform, t1); + } - zoom.scaleExtent = function(_) { - return arguments.length ? (k0 = +_[0], k1 = +_[1], zoom) : [k0, k1]; - }; + function touchstarted() { + if (!filter.apply(this, arguments)) return; + var g = gesture(this, arguments), + touches$$1 = exports.event.changedTouches, + n = touches$$1.length, i, t, p; - zoom.translateExtent = function(_) { - return arguments.length ? (x0 = +_[0][0], x1 = +_[1][0], y0 = +_[0][1], y1 = +_[1][1], zoom) : [[x0, y0], [x1, y1]]; - }; - - zoom.duration = function(_) { - return arguments.length ? (duration = +_, zoom) : duration; - }; - - zoom.on = function() { - var value = listeners.on.apply(listeners, arguments); - return value === listeners ? zoom : value; - }; - - return zoom; + nopropagation$1(); + for (i = 0; i < n; ++i) { + t = touches$$1[i], p = touch(this, touches$$1, t.identifier); + p = [p, this.__zoom.invert(p), t.identifier]; + if (!g.touch0) g.touch0 = p; + else if (!g.touch1) g.touch1 = p; + } + if (touchstarting) { + touchstarting = clearTimeout(touchstarting); + if (!g.touch1) return g.end(), dblclicked.apply(this, arguments); + } + if (exports.event.touches.length === n) { + touchstarting = setTimeout(function() { touchstarting = null; }, touchDelay); + interrupt(this); + g.start(); + } } - function constant$10(x) { - return function() { - return x; - }; - } + function touchmoved() { + var g = gesture(this, arguments), + touches$$1 = exports.event.changedTouches, + n = touches$$1.length, i, t, p, l; - function BrushEvent(target, type, selection) { - this.target = target; - this.type = type; - this.selection = selection; + noevent$1(); + if (touchstarting) touchstarting = clearTimeout(touchstarting); + for (i = 0; i < n; ++i) { + t = touches$$1[i], p = touch(this, touches$$1, t.identifier); + if (g.touch0 && g.touch0[2] === t.identifier) g.touch0[0] = p; + else if (g.touch1 && g.touch1[2] === t.identifier) g.touch1[0] = p; + } + t = g.that.__zoom; + if (g.touch1) { + var p0 = g.touch0[0], l0 = g.touch0[1], + p1 = g.touch1[0], l1 = g.touch1[1], + dp = (dp = p1[0] - p0[0]) * dp + (dp = p1[1] - p0[1]) * dp, + dl = (dl = l1[0] - l0[0]) * dl + (dl = l1[1] - l0[1]) * dl; + t = scale(t, Math.sqrt(dp / dl)); + p = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2]; + l = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2]; + } + else if (g.touch0) p = g.touch0[0], l = g.touch0[1]; + else return; + g.zoom("touch", constrain(translate(t, p, l), g.extent)); } - function nopropagation$2() { - exports.event.stopImmediatePropagation(); - } + function touchended() { + var g = gesture(this, arguments), + touches$$1 = exports.event.changedTouches, + n = touches$$1.length, i, t; - function noevent$2() { - exports.event.preventDefault(); - exports.event.stopImmediatePropagation(); + nopropagation$1(); + if (touchending) clearTimeout(touchending); + touchending = setTimeout(function() { touchending = null; }, touchDelay); + for (i = 0; i < n; ++i) { + t = touches$$1[i]; + if (g.touch0 && g.touch0[2] === t.identifier) delete g.touch0; + else if (g.touch1 && g.touch1[2] === t.identifier) delete g.touch1; + } + if (g.touch1 && !g.touch0) g.touch0 = g.touch1, delete g.touch1; + if (!g.touch0) g.end(); } - var MODE_DRAG = {name: "drag"}; - var MODE_SPACE = {name: "space"}; - var MODE_HANDLE = {name: "handle"}; - var MODE_CENTER = {name: "center"}; - var X = { - name: "x", - handles: ["e", "w"].map(type$1), - input: function(x, e) { return x && [[x[0], e[0][1]], [x[1], e[1][1]]]; }, - output: function(xy) { return xy && [xy[0][0], xy[1][0]]; } + zoom.filter = function(_) { + return arguments.length ? (filter = typeof _ === "function" ? _ : constant$10(!!_), zoom) : filter; }; - var Y = { - name: "y", - handles: ["n", "s"].map(type$1), - input: function(y, e) { return y && [[e[0][0], y[0]], [e[1][0], y[1]]]; }, - output: function(xy) { return xy && [xy[0][1], xy[1][1]]; } + zoom.extent = function(_) { + return arguments.length ? (extent = typeof _ === "function" ? _ : constant$10([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), zoom) : extent; }; - var XY = { - name: "xy", - handles: ["n", "e", "s", "w", "nw", "ne", "se", "sw"].map(type$1), - input: function(xy) { return xy; }, - output: function(xy) { return xy; } + zoom.scaleExtent = function(_) { + return arguments.length ? (k0 = +_[0], k1 = +_[1], zoom) : [k0, k1]; }; - var cursors = { - overlay: "crosshair", - selection: "move", - n: "ns-resize", - e: "ew-resize", - s: "ns-resize", - w: "ew-resize", - nw: "nwse-resize", - ne: "nesw-resize", - se: "nwse-resize", - sw: "nesw-resize" + zoom.translateExtent = function(_) { + return arguments.length ? (x0 = +_[0][0], x1 = +_[1][0], y0 = +_[0][1], y1 = +_[1][1], zoom) : [[x0, y0], [x1, y1]]; }; - var flipX = { - e: "w", - w: "e", - nw: "ne", - ne: "nw", - se: "sw", - sw: "se" + zoom.duration = function(_) { + return arguments.length ? (duration = +_, zoom) : duration; }; - var flipY = { - n: "s", - s: "n", - nw: "sw", - ne: "se", - se: "ne", - sw: "nw" + zoom.on = function() { + var value = listeners.on.apply(listeners, arguments); + return value === listeners ? zoom : value; }; - var signsX = { - overlay: +1, - selection: +1, - n: null, - e: +1, - s: null, - w: -1, - nw: -1, - ne: +1, - se: +1, - sw: -1 - }; + return zoom; +} - var signsY = { - overlay: +1, - selection: +1, - n: -1, - e: null, - s: +1, - w: null, - nw: -1, - ne: -1, - se: +1, - sw: +1 +var constant$11 = function(x) { + return function() { + return x; }; +} - function type$1(t) { - return {type: t}; - } +var BrushEvent = function(target, type, selection) { + this.target = target; + this.type = type; + this.selection = selection; +} - // Ignore right-click, since that should open the context menu. - function defaultFilter$2() { - return !exports.event.button; - } +function nopropagation$2() { + exports.event.stopImmediatePropagation(); +} - function defaultExtent$1() { - var svg = this.ownerSVGElement || this; - return [[0, 0], [svg.width.baseVal.value, svg.height.baseVal.value]]; - } +var noevent$2 = function() { + exports.event.preventDefault(); + exports.event.stopImmediatePropagation(); +} - // Like d3.local, but with the name “__brush” rather than auto-generated. - function local$1(node) { - while (!node.__brush) if (!(node = node.parentNode)) return; - return node.__brush; - } +var MODE_DRAG = {name: "drag"}; +var MODE_SPACE = {name: "space"}; +var MODE_HANDLE = {name: "handle"}; +var MODE_CENTER = {name: "center"}; - function empty$1(extent) { - return extent[0][0] === extent[1][0] - || extent[0][1] === extent[1][1]; - } +var X = { + name: "x", + handles: ["e", "w"].map(type$1), + input: function(x, e) { return x && [[x[0], e[0][1]], [x[1], e[1][1]]]; }, + output: function(xy) { return xy && [xy[0][0], xy[1][0]]; } +}; - function brushSelection(node) { - var state = node.__brush; - return state ? state.dim.output(state.selection) : null; - } +var Y = { + name: "y", + handles: ["n", "s"].map(type$1), + input: function(y, e) { return y && [[e[0][0], y[0]], [e[1][0], y[1]]]; }, + output: function(xy) { return xy && [xy[0][1], xy[1][1]]; } +}; - function brushX() { - return brush$1(X); - } +var XY = { + name: "xy", + handles: ["n", "e", "s", "w", "nw", "ne", "se", "sw"].map(type$1), + input: function(xy) { return xy; }, + output: function(xy) { return xy; } +}; - function brushY() { - return brush$1(Y); - } +var cursors = { + overlay: "crosshair", + selection: "move", + n: "ns-resize", + e: "ew-resize", + s: "ns-resize", + w: "ew-resize", + nw: "nwse-resize", + ne: "nesw-resize", + se: "nwse-resize", + sw: "nesw-resize" +}; - function brush() { - return brush$1(XY); - } +var flipX = { + e: "w", + w: "e", + nw: "ne", + ne: "nw", + se: "sw", + sw: "se" +}; - function brush$1(dim) { - var extent = defaultExtent$1, - filter = defaultFilter$2, - listeners = dispatch(brush, "start", "brush", "end"), - handleSize = 6, - touchending; +var flipY = { + n: "s", + s: "n", + nw: "sw", + ne: "se", + se: "ne", + sw: "nw" +}; - function brush(group) { - var overlay = group - .property("__brush", initialize) - .selectAll(".overlay") - .data([type$1("overlay")]); +var signsX = { + overlay: +1, + selection: +1, + n: null, + e: +1, + s: null, + w: -1, + nw: -1, + ne: +1, + se: +1, + sw: -1 +}; - overlay.enter().append("rect") - .attr("class", "overlay") - .attr("pointer-events", "all") - .attr("cursor", cursors.overlay) - .merge(overlay) - .each(function() { - var extent = local$1(this).extent; - select(this) - .attr("x", extent[0][0]) - .attr("y", extent[0][1]) - .attr("width", extent[1][0] - extent[0][0]) - .attr("height", extent[1][1] - extent[0][1]); - }); +var signsY = { + overlay: +1, + selection: +1, + n: -1, + e: null, + s: +1, + w: null, + nw: -1, + ne: -1, + se: +1, + sw: +1 +}; - group.selectAll(".selection") - .data([type$1("selection")]) - .enter().append("rect") - .attr("class", "selection") - .attr("cursor", cursors.selection) - .attr("fill", "#777") - .attr("fill-opacity", 0.3) - .attr("stroke", "#fff") - .attr("shape-rendering", "crispEdges"); +function type$1(t) { + return {type: t}; +} - var handle = group.selectAll(".handle") - .data(dim.handles, function(d) { return d.type; }); +// Ignore right-click, since that should open the context menu. +function defaultFilter$2() { + return !exports.event.button; +} - handle.exit().remove(); +function defaultExtent$1() { + var svg = this.ownerSVGElement || this; + return [[0, 0], [svg.width.baseVal.value, svg.height.baseVal.value]]; +} - handle.enter().append("rect") - .attr("class", function(d) { return "handle handle--" + d.type; }) - .attr("cursor", function(d) { return cursors[d.type]; }); +// Like d3.local, but with the name “__brush” rather than auto-generated. +function local$1(node) { + while (!node.__brush) if (!(node = node.parentNode)) return; + return node.__brush; +} - group - .each(redraw) - .attr("fill", "none") - .attr("pointer-events", "all") - .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)") - .on("mousedown.brush touchstart.brush", started); - } +function empty$1(extent) { + return extent[0][0] === extent[1][0] + || extent[0][1] === extent[1][1]; +} - brush.move = function(group, selection) { - if (group.selection) { - group - .on("start.brush", function() { emitter(this, arguments).beforestart().start(); }) - .on("interrupt.brush end.brush", function() { emitter(this, arguments).end(); }) - .tween("brush", function() { - var that = this, - state = that.__brush, - emit = emitter(that, arguments), - selection0 = state.selection, - selection1 = dim.input(typeof selection === "function" ? selection.apply(this, arguments) : selection, state.extent), - i = interpolate(selection0, selection1); +function brushSelection(node) { + var state = node.__brush; + return state ? state.dim.output(state.selection) : null; +} - function tween(t) { - state.selection = t === 1 && empty$1(selection1) ? null : i(t); - redraw.call(that); - emit.brush(); - } +function brushX() { + return brush$1(X); +} - return selection0 && selection1 ? tween : tween(1); - }); - } else { - group - .each(function() { - var that = this, - args = arguments, - state = that.__brush, - selection1 = dim.input(typeof selection === "function" ? selection.apply(that, args) : selection, state.extent), - emit = emitter(that, args).beforestart(); +function brushY() { + return brush$1(Y); +} - interrupt(that); - state.selection = selection1 == null || empty$1(selection1) ? null : selection1; - redraw.call(that); - emit.start().brush().end(); - }); - } - }; +var brush = function() { + return brush$1(XY); +} - function redraw() { - var group = select(this), - selection = local$1(this).selection; +function brush$1(dim) { + var extent = defaultExtent$1, + filter = defaultFilter$2, + listeners = dispatch(brush, "start", "brush", "end"), + handleSize = 6, + touchending; - if (selection) { - group.selectAll(".selection") - .style("display", null) - .attr("x", selection[0][0]) - .attr("y", selection[0][1]) - .attr("width", selection[1][0] - selection[0][0]) - .attr("height", selection[1][1] - selection[0][1]); + function brush(group) { + var overlay = group + .property("__brush", initialize) + .selectAll(".overlay") + .data([type$1("overlay")]); - group.selectAll(".handle") - .style("display", null) - .attr("x", function(d) { return d.type[d.type.length - 1] === "e" ? selection[1][0] - handleSize / 2 : selection[0][0] - handleSize / 2; }) - .attr("y", function(d) { return d.type[0] === "s" ? selection[1][1] - handleSize / 2 : selection[0][1] - handleSize / 2; }) - .attr("width", function(d) { return d.type === "n" || d.type === "s" ? selection[1][0] - selection[0][0] + handleSize : handleSize; }) - .attr("height", function(d) { return d.type === "e" || d.type === "w" ? selection[1][1] - selection[0][1] + handleSize : handleSize; }); - } + overlay.enter().append("rect") + .attr("class", "overlay") + .attr("pointer-events", "all") + .attr("cursor", cursors.overlay) + .merge(overlay) + .each(function() { + var extent = local$1(this).extent; + select(this) + .attr("x", extent[0][0]) + .attr("y", extent[0][1]) + .attr("width", extent[1][0] - extent[0][0]) + .attr("height", extent[1][1] - extent[0][1]); + }); - else { - group.selectAll(".selection,.handle") - .style("display", "none") - .attr("x", null) - .attr("y", null) - .attr("width", null) - .attr("height", null); - } + group.selectAll(".selection") + .data([type$1("selection")]) + .enter().append("rect") + .attr("class", "selection") + .attr("cursor", cursors.selection) + .attr("fill", "#777") + .attr("fill-opacity", 0.3) + .attr("stroke", "#fff") + .attr("shape-rendering", "crispEdges"); + + var handle = group.selectAll(".handle") + .data(dim.handles, function(d) { return d.type; }); + + handle.exit().remove(); + + handle.enter().append("rect") + .attr("class", function(d) { return "handle handle--" + d.type; }) + .attr("cursor", function(d) { return cursors[d.type]; }); + + group + .each(redraw) + .attr("fill", "none") + .attr("pointer-events", "all") + .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)") + .on("mousedown.brush touchstart.brush", started); + } + + brush.move = function(group, selection$$1) { + if (group.selection) { + group + .on("start.brush", function() { emitter(this, arguments).beforestart().start(); }) + .on("interrupt.brush end.brush", function() { emitter(this, arguments).end(); }) + .tween("brush", function() { + var that = this, + state = that.__brush, + emit = emitter(that, arguments), + selection0 = state.selection, + selection1 = dim.input(typeof selection$$1 === "function" ? selection$$1.apply(this, arguments) : selection$$1, state.extent), + i = interpolate(selection0, selection1); + + function tween(t) { + state.selection = t === 1 && empty$1(selection1) ? null : i(t); + redraw.call(that); + emit.brush(); + } + + return selection0 && selection1 ? tween : tween(1); + }); + } else { + group + .each(function() { + var that = this, + args = arguments, + state = that.__brush, + selection1 = dim.input(typeof selection$$1 === "function" ? selection$$1.apply(that, args) : selection$$1, state.extent), + emit = emitter(that, args).beforestart(); + + interrupt(that); + state.selection = selection1 == null || empty$1(selection1) ? null : selection1; + redraw.call(that); + emit.start().brush().end(); + }); } + }; - function emitter(that, args) { - return that.__brush.emitter || new Emitter(that, args); + function redraw() { + var group = select(this), + selection$$1 = local$1(this).selection; + + if (selection$$1) { + group.selectAll(".selection") + .style("display", null) + .attr("x", selection$$1[0][0]) + .attr("y", selection$$1[0][1]) + .attr("width", selection$$1[1][0] - selection$$1[0][0]) + .attr("height", selection$$1[1][1] - selection$$1[0][1]); + + group.selectAll(".handle") + .style("display", null) + .attr("x", function(d) { return d.type[d.type.length - 1] === "e" ? selection$$1[1][0] - handleSize / 2 : selection$$1[0][0] - handleSize / 2; }) + .attr("y", function(d) { return d.type[0] === "s" ? selection$$1[1][1] - handleSize / 2 : selection$$1[0][1] - handleSize / 2; }) + .attr("width", function(d) { return d.type === "n" || d.type === "s" ? selection$$1[1][0] - selection$$1[0][0] + handleSize : handleSize; }) + .attr("height", function(d) { return d.type === "e" || d.type === "w" ? selection$$1[1][1] - selection$$1[0][1] + handleSize : handleSize; }); } - function Emitter(that, args) { - this.that = that; - this.args = args; - this.state = that.__brush; - this.active = 0; + else { + group.selectAll(".selection,.handle") + .style("display", "none") + .attr("x", null) + .attr("y", null) + .attr("width", null) + .attr("height", null); } + } - Emitter.prototype = { - beforestart: function() { - if (++this.active === 1) this.state.emitter = this, this.starting = true; - return this; - }, - start: function() { - if (this.starting) this.starting = false, this.emit("start"); - return this; - }, - brush: function() { - this.emit("brush"); - return this; - }, - end: function() { - if (--this.active === 0) delete this.state.emitter, this.emit("end"); - return this; - }, - emit: function(type) { - customEvent(new BrushEvent(brush, type, dim.output(this.state.selection)), listeners.apply, listeners, [type, this.that, this.args]); - } - }; + function emitter(that, args) { + return that.__brush.emitter || new Emitter(that, args); + } - function started() { - if (exports.event.touches) { if (exports.event.changedTouches.length < exports.event.touches.length) return noevent$2(); } - else if (touchending) return; - if (!filter.apply(this, arguments)) return; + function Emitter(that, args) { + this.that = that; + this.args = args; + this.state = that.__brush; + this.active = 0; + } - var that = this, - type = exports.event.target.__data__.type, - mode = (exports.event.metaKey ? type = "overlay" : type) === "selection" ? MODE_DRAG : (exports.event.altKey ? MODE_CENTER : MODE_HANDLE), - signX = dim === Y ? null : signsX[type], - signY = dim === X ? null : signsY[type], - state = local$1(that), - extent = state.extent, - selection = state.selection, - W = extent[0][0], w0, w1, - N = extent[0][1], n0, n1, - E = extent[1][0], e0, e1, - S = extent[1][1], s0, s1, - dx, - dy, - moving, - shifting = signX && signY && exports.event.shiftKey, - lockX, - lockY, - point0 = mouse(that), - point = point0, - emit = emitter(that, arguments).beforestart(); + Emitter.prototype = { + beforestart: function() { + if (++this.active === 1) this.state.emitter = this, this.starting = true; + return this; + }, + start: function() { + if (this.starting) this.starting = false, this.emit("start"); + return this; + }, + brush: function() { + this.emit("brush"); + return this; + }, + end: function() { + if (--this.active === 0) delete this.state.emitter, this.emit("end"); + return this; + }, + emit: function(type) { + customEvent(new BrushEvent(brush, type, dim.output(this.state.selection)), listeners.apply, listeners, [type, this.that, this.args]); + } + }; - if (type === "overlay") { - state.selection = selection = [ - [w0 = dim === Y ? W : point0[0], n0 = dim === X ? N : point0[1]], - [e0 = dim === Y ? E : w0, s0 = dim === X ? S : n0] - ]; - } else { - w0 = selection[0][0]; - n0 = selection[0][1]; - e0 = selection[1][0]; - s0 = selection[1][1]; - } + function started() { + if (exports.event.touches) { if (exports.event.changedTouches.length < exports.event.touches.length) return noevent$2(); } + else if (touchending) return; + if (!filter.apply(this, arguments)) return; - w1 = w0; - n1 = n0; - e1 = e0; - s1 = s0; + var that = this, + type = exports.event.target.__data__.type, + mode = (exports.event.metaKey ? type = "overlay" : type) === "selection" ? MODE_DRAG : (exports.event.altKey ? MODE_CENTER : MODE_HANDLE), + signX = dim === Y ? null : signsX[type], + signY = dim === X ? null : signsY[type], + state = local$1(that), + extent = state.extent, + selection$$1 = state.selection, + W = extent[0][0], w0, w1, + N = extent[0][1], n0, n1, + E = extent[1][0], e0, e1, + S = extent[1][1], s0, s1, + dx, + dy, + moving, + shifting = signX && signY && exports.event.shiftKey, + lockX, + lockY, + point0 = mouse(that), + point = point0, + emit = emitter(that, arguments).beforestart(); - var group = select(that) - .attr("pointer-events", "none"); + if (type === "overlay") { + state.selection = selection$$1 = [ + [w0 = dim === Y ? W : point0[0], n0 = dim === X ? N : point0[1]], + [e0 = dim === Y ? E : w0, s0 = dim === X ? S : n0] + ]; + } else { + w0 = selection$$1[0][0]; + n0 = selection$$1[0][1]; + e0 = selection$$1[1][0]; + s0 = selection$$1[1][1]; + } - var overlay = group.selectAll(".overlay") - .attr("cursor", cursors[type]); + w1 = w0; + n1 = n0; + e1 = e0; + s1 = s0; - if (exports.event.touches) { - group - .on("touchmove.brush", moved, true) - .on("touchend.brush touchcancel.brush", ended, true); - } else { - var view = select(exports.event.view) - .on("keydown.brush", keydowned, true) - .on("keyup.brush", keyupped, true) - .on("mousemove.brush", moved, true) - .on("mouseup.brush", ended, true); + var group = select(that) + .attr("pointer-events", "none"); - dragDisable(exports.event.view); - } + var overlay = group.selectAll(".overlay") + .attr("cursor", cursors[type]); - nopropagation$2(); - interrupt(that); - redraw.call(that); - emit.start(); + if (exports.event.touches) { + group + .on("touchmove.brush", moved, true) + .on("touchend.brush touchcancel.brush", ended, true); + } else { + var view = select(exports.event.view) + .on("keydown.brush", keydowned, true) + .on("keyup.brush", keyupped, true) + .on("mousemove.brush", moved, true) + .on("mouseup.brush", ended, true); - function moved() { - var point1 = mouse(that); - if (shifting && !lockX && !lockY) { - if (Math.abs(point1[0] - point[0]) > Math.abs(point1[1] - point[1])) lockY = true; - else lockX = true; - } - point = point1; - moving = true; - noevent$2(); - move(); + dragDisable(exports.event.view); + } + + nopropagation$2(); + interrupt(that); + redraw.call(that); + emit.start(); + + function moved() { + var point1 = mouse(that); + if (shifting && !lockX && !lockY) { + if (Math.abs(point1[0] - point[0]) > Math.abs(point1[1] - point[1])) lockY = true; + else lockX = true; } + point = point1; + moving = true; + noevent$2(); + move(); + } - function move() { - var t; + function move() { + var t; - dx = point[0] - point0[0]; - dy = point[1] - point0[1]; + dx = point[0] - point0[0]; + dy = point[1] - point0[1]; - switch (mode) { - case MODE_SPACE: - case MODE_DRAG: { - if (signX) dx = Math.max(W - w0, Math.min(E - e0, dx)), w1 = w0 + dx, e1 = e0 + dx; - if (signY) dy = Math.max(N - n0, Math.min(S - s0, dy)), n1 = n0 + dy, s1 = s0 + dy; - break; - } - case MODE_HANDLE: { - if (signX < 0) dx = Math.max(W - w0, Math.min(E - w0, dx)), w1 = w0 + dx, e1 = e0; - else if (signX > 0) dx = Math.max(W - e0, Math.min(E - e0, dx)), w1 = w0, e1 = e0 + dx; - if (signY < 0) dy = Math.max(N - n0, Math.min(S - n0, dy)), n1 = n0 + dy, s1 = s0; - else if (signY > 0) dy = Math.max(N - s0, Math.min(S - s0, dy)), n1 = n0, s1 = s0 + dy; - break; - } - case MODE_CENTER: { - if (signX) w1 = Math.max(W, Math.min(E, w0 - dx * signX)), e1 = Math.max(W, Math.min(E, e0 + dx * signX)); - if (signY) n1 = Math.max(N, Math.min(S, n0 - dy * signY)), s1 = Math.max(N, Math.min(S, s0 + dy * signY)); - break; - } + switch (mode) { + case MODE_SPACE: + case MODE_DRAG: { + if (signX) dx = Math.max(W - w0, Math.min(E - e0, dx)), w1 = w0 + dx, e1 = e0 + dx; + if (signY) dy = Math.max(N - n0, Math.min(S - s0, dy)), n1 = n0 + dy, s1 = s0 + dy; + break; } - - if (e1 < w1) { - signX *= -1; - t = w0, w0 = e0, e0 = t; - t = w1, w1 = e1, e1 = t; - if (type in flipX) overlay.attr("cursor", cursors[type = flipX[type]]); + case MODE_HANDLE: { + if (signX < 0) dx = Math.max(W - w0, Math.min(E - w0, dx)), w1 = w0 + dx, e1 = e0; + else if (signX > 0) dx = Math.max(W - e0, Math.min(E - e0, dx)), w1 = w0, e1 = e0 + dx; + if (signY < 0) dy = Math.max(N - n0, Math.min(S - n0, dy)), n1 = n0 + dy, s1 = s0; + else if (signY > 0) dy = Math.max(N - s0, Math.min(S - s0, dy)), n1 = n0, s1 = s0 + dy; + break; } - - if (s1 < n1) { - signY *= -1; - t = n0, n0 = s0, s0 = t; - t = n1, n1 = s1, s1 = t; - if (type in flipY) overlay.attr("cursor", cursors[type = flipY[type]]); + case MODE_CENTER: { + if (signX) w1 = Math.max(W, Math.min(E, w0 - dx * signX)), e1 = Math.max(W, Math.min(E, e0 + dx * signX)); + if (signY) n1 = Math.max(N, Math.min(S, n0 - dy * signY)), s1 = Math.max(N, Math.min(S, s0 + dy * signY)); + break; } + } - selection = state.selection; // May be set by brush.move! + if (e1 < w1) { + signX *= -1; + t = w0, w0 = e0, e0 = t; + t = w1, w1 = e1, e1 = t; + if (type in flipX) overlay.attr("cursor", cursors[type = flipX[type]]); + } - if (lockX) w1 = selection[0][0], e1 = selection[1][0]; - if (lockY) n1 = selection[0][1], s1 = selection[1][1]; + if (s1 < n1) { + signY *= -1; + t = n0, n0 = s0, s0 = t; + t = n1, n1 = s1, s1 = t; + if (type in flipY) overlay.attr("cursor", cursors[type = flipY[type]]); + } - if (selection[0][0] !== w1 - || selection[0][1] !== n1 - || selection[1][0] !== e1 - || selection[1][1] !== s1) { - state.selection = [[w1, n1], [e1, s1]]; - redraw.call(that); - emit.brush(); - } + if (state.selection) selection$$1 = state.selection; // May be set by brush.move! + if (lockX) w1 = selection$$1[0][0], e1 = selection$$1[1][0]; + if (lockY) n1 = selection$$1[0][1], s1 = selection$$1[1][1]; + + if (selection$$1[0][0] !== w1 + || selection$$1[0][1] !== n1 + || selection$$1[1][0] !== e1 + || selection$$1[1][1] !== s1) { + state.selection = [[w1, n1], [e1, s1]]; + redraw.call(that); + emit.brush(); } + } - function ended() { - nopropagation$2(); - if (exports.event.touches) { - if (exports.event.touches.length) return; - if (touchending) clearTimeout(touchending); - touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed! - group.on("touchmove.brush touchend.brush touchcancel.brush", null); - } else { - dragEnable(exports.event.view, moving); - view.on("keydown.brush keyup.brush mousemove.brush mouseup.brush", null); - } - group.attr("pointer-events", "all"); - overlay.attr("cursor", cursors.overlay); - if (empty$1(selection)) state.selection = null, redraw.call(that); - emit.end(); + function ended() { + nopropagation$2(); + if (exports.event.touches) { + if (exports.event.touches.length) return; + if (touchending) clearTimeout(touchending); + touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed! + group.on("touchmove.brush touchend.brush touchcancel.brush", null); + } else { + yesdrag(exports.event.view, moving); + view.on("keydown.brush keyup.brush mousemove.brush mouseup.brush", null); } + group.attr("pointer-events", "all"); + overlay.attr("cursor", cursors.overlay); + if (state.selection) selection$$1 = state.selection; // May be set by brush.move (on start)! + if (empty$1(selection$$1)) state.selection = null, redraw.call(that); + emit.end(); + } - function keydowned() { - switch (exports.event.keyCode) { - case 16: { // SHIFT - shifting = signX && signY; - break; + function keydowned() { + switch (exports.event.keyCode) { + case 16: { // SHIFT + shifting = signX && signY; + break; + } + case 18: { // ALT + if (mode === MODE_HANDLE) { + if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX; + if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY; + mode = MODE_CENTER; + move(); } - case 18: { // ALT - if (mode === MODE_HANDLE) { - if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX; - if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY; - mode = MODE_CENTER; - move(); - } - break; + break; + } + case 32: { // SPACE; takes priority over ALT + if (mode === MODE_HANDLE || mode === MODE_CENTER) { + if (signX < 0) e0 = e1 - dx; else if (signX > 0) w0 = w1 - dx; + if (signY < 0) s0 = s1 - dy; else if (signY > 0) n0 = n1 - dy; + mode = MODE_SPACE; + overlay.attr("cursor", cursors.selection); + move(); } - case 32: { // SPACE; takes priority over ALT - if (mode === MODE_HANDLE || mode === MODE_CENTER) { - if (signX < 0) e0 = e1 - dx; else if (signX > 0) w0 = w1 - dx; - if (signY < 0) s0 = s1 - dy; else if (signY > 0) n0 = n1 - dy; - mode = MODE_SPACE; - overlay.attr("cursor", cursors.selection); - move(); - } - break; - } - default: return; + break; } - noevent$2(); + default: return; } + noevent$2(); + } - function keyupped() { - switch (exports.event.keyCode) { - case 16: { // SHIFT - if (shifting) { - lockX = lockY = shifting = false; - move(); - } - break; + function keyupped() { + switch (exports.event.keyCode) { + case 16: { // SHIFT + if (shifting) { + lockX = lockY = shifting = false; + move(); } - case 18: { // ALT - if (mode === MODE_CENTER) { + break; + } + case 18: { // ALT + if (mode === MODE_CENTER) { + if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1; + if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1; + mode = MODE_HANDLE; + move(); + } + break; + } + case 32: { // SPACE + if (mode === MODE_SPACE) { + if (exports.event.altKey) { + if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX; + if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY; + mode = MODE_CENTER; + } else { if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1; if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1; mode = MODE_HANDLE; - move(); } - break; + overlay.attr("cursor", cursors[type]); + move(); } - case 32: { // SPACE - if (mode === MODE_SPACE) { - if (exports.event.altKey) { - if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX; - if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY; - mode = MODE_CENTER; - } else { - if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1; - if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1; - mode = MODE_HANDLE; - } - overlay.attr("cursor", cursors[type]); - move(); - } - break; - } - default: return; + break; } - noevent$2(); + default: return; } + noevent$2(); } + } - function initialize() { - var state = this.__brush || {selection: null}; - state.extent = extent.apply(this, arguments); - state.dim = dim; - return state; - } + function initialize() { + var state = this.__brush || {selection: null}; + state.extent = extent.apply(this, arguments); + state.dim = dim; + return state; + } - brush.extent = function(_) { - return arguments.length ? (extent = typeof _ === "function" ? _ : constant$10([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), brush) : extent; - }; + brush.extent = function(_) { + return arguments.length ? (extent = typeof _ === "function" ? _ : constant$11([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), brush) : extent; + }; - brush.filter = function(_) { - return arguments.length ? (filter = typeof _ === "function" ? _ : constant$10(!!_), brush) : filter; - }; + brush.filter = function(_) { + return arguments.length ? (filter = typeof _ === "function" ? _ : constant$11(!!_), brush) : filter; + }; - brush.handleSize = function(_) { - return arguments.length ? (handleSize = +_, brush) : handleSize; - }; + brush.handleSize = function(_) { + return arguments.length ? (handleSize = +_, brush) : handleSize; + }; - brush.on = function() { - var value = listeners.on.apply(listeners, arguments); - return value === listeners ? brush : value; - }; + brush.on = function() { + var value = listeners.on.apply(listeners, arguments); + return value === listeners ? brush : value; + }; - return brush; - } + return brush; +} - var cos = Math.cos; - var sin = Math.sin; - var pi$3 = Math.PI; - var halfPi$2 = pi$3 / 2; - var tau$3 = pi$3 * 2; - var max$1 = Math.max; +var cos = Math.cos; +var sin = Math.sin; +var pi$3 = Math.PI; +var halfPi$2 = pi$3 / 2; +var tau$3 = pi$3 * 2; +var max$1 = Math.max; - function compareValue(compare) { - return function(a, b) { - return compare( - a.source.value + a.target.value, - b.source.value + b.target.value - ); - }; - } +function compareValue(compare) { + return function(a, b) { + return compare( + a.source.value + a.target.value, + b.source.value + b.target.value + ); + }; +} - function chord() { - var padAngle = 0, - sortGroups = null, - sortSubgroups = null, - sortChords = null; +var chord = function() { + var padAngle = 0, + sortGroups = null, + sortSubgroups = null, + sortChords = null; - function chord(matrix) { - var n = matrix.length, - groupSums = [], - groupIndex = range(n), - subgroupIndex = [], - chords = [], - groups = chords.groups = new Array(n), - subgroups = new Array(n * n), - k, - x, - x0, - dx, - i, - j; + function chord(matrix) { + var n = matrix.length, + groupSums = [], + groupIndex = range(n), + subgroupIndex = [], + chords = [], + groups = chords.groups = new Array(n), + subgroups = new Array(n * n), + k, + x, + x0, + dx, + i, + j; - // Compute the sum. - k = 0, i = -1; while (++i < n) { - x = 0, j = -1; while (++j < n) { - x += matrix[i][j]; - } - groupSums.push(x); - subgroupIndex.push(range(n)); - k += x; + // Compute the sum. + k = 0, i = -1; while (++i < n) { + x = 0, j = -1; while (++j < n) { + x += matrix[i][j]; } + groupSums.push(x); + subgroupIndex.push(range(n)); + k += x; + } - // Sort groups… - if (sortGroups) groupIndex.sort(function(a, b) { - return sortGroups(groupSums[a], groupSums[b]); - }); + // Sort groups… + if (sortGroups) groupIndex.sort(function(a, b) { + return sortGroups(groupSums[a], groupSums[b]); + }); - // Sort subgroups… - if (sortSubgroups) subgroupIndex.forEach(function(d, i) { - d.sort(function(a, b) { - return sortSubgroups(matrix[i][a], matrix[i][b]); - }); + // Sort subgroups… + if (sortSubgroups) subgroupIndex.forEach(function(d, i) { + d.sort(function(a, b) { + return sortSubgroups(matrix[i][a], matrix[i][b]); }); + }); - // Convert the sum to scaling factor for [0, 2pi]. - // TODO Allow start and end angle to be specified? - // TODO Allow padding to be specified as percentage? - k = max$1(0, tau$3 - padAngle * n) / k; - dx = k ? padAngle : tau$3 / n; + // Convert the sum to scaling factor for [0, 2pi]. + // TODO Allow start and end angle to be specified? + // TODO Allow padding to be specified as percentage? + k = max$1(0, tau$3 - padAngle * n) / k; + dx = k ? padAngle : tau$3 / n; - // Compute the start and end angle for each group and subgroup. - // Note: Opera has a bug reordering object literal properties! - x = 0, i = -1; while (++i < n) { - x0 = x, j = -1; while (++j < n) { - var di = groupIndex[i], - dj = subgroupIndex[di][j], - v = matrix[di][dj], - a0 = x, - a1 = x += v * k; - subgroups[dj * n + di] = { - index: di, - subindex: dj, - startAngle: a0, - endAngle: a1, - value: v - }; - } - groups[di] = { + // Compute the start and end angle for each group and subgroup. + // Note: Opera has a bug reordering object literal properties! + x = 0, i = -1; while (++i < n) { + x0 = x, j = -1; while (++j < n) { + var di = groupIndex[i], + dj = subgroupIndex[di][j], + v = matrix[di][dj], + a0 = x, + a1 = x += v * k; + subgroups[dj * n + di] = { index: di, - startAngle: x0, - endAngle: x, - value: groupSums[di] + subindex: dj, + startAngle: a0, + endAngle: a1, + value: v }; - x += dx; } + groups[di] = { + index: di, + startAngle: x0, + endAngle: x, + value: groupSums[di] + }; + x += dx; + } - // Generate chords for each (non-empty) subgroup-subgroup link. - i = -1; while (++i < n) { - j = i - 1; while (++j < n) { - var source = subgroups[j * n + i], - target = subgroups[i * n + j]; - if (source.value || target.value) { - chords.push(source.value < target.value - ? {source: target, target: source} - : {source: source, target: target}); - } + // Generate chords for each (non-empty) subgroup-subgroup link. + i = -1; while (++i < n) { + j = i - 1; while (++j < n) { + var source = subgroups[j * n + i], + target = subgroups[i * n + j]; + if (source.value || target.value) { + chords.push(source.value < target.value + ? {source: target, target: source} + : {source: source, target: target}); } } - - return sortChords ? chords.sort(sortChords) : chords; } - chord.padAngle = function(_) { - return arguments.length ? (padAngle = max$1(0, _), chord) : padAngle; - }; + return sortChords ? chords.sort(sortChords) : chords; + } - chord.sortGroups = function(_) { - return arguments.length ? (sortGroups = _, chord) : sortGroups; - }; + chord.padAngle = function(_) { + return arguments.length ? (padAngle = max$1(0, _), chord) : padAngle; + }; - chord.sortSubgroups = function(_) { - return arguments.length ? (sortSubgroups = _, chord) : sortSubgroups; - }; + chord.sortGroups = function(_) { + return arguments.length ? (sortGroups = _, chord) : sortGroups; + }; - chord.sortChords = function(_) { - return arguments.length ? (_ == null ? sortChords = null : (sortChords = compareValue(_))._ = _, chord) : sortChords && sortChords._; - }; + chord.sortSubgroups = function(_) { + return arguments.length ? (sortSubgroups = _, chord) : sortSubgroups; + }; - return chord; - } + chord.sortChords = function(_) { + return arguments.length ? (_ == null ? sortChords = null : (sortChords = compareValue(_))._ = _, chord) : sortChords && sortChords._; + }; - var slice$5 = Array.prototype.slice; + return chord; +} - function constant$11(x) { - return function() { - return x; - }; - } +var slice$5 = Array.prototype.slice; - function defaultSource(d) { - return d.source; - } +var constant$12 = function(x) { + return function() { + return x; + }; +} - function defaultTarget(d) { - return d.target; - } +function defaultSource(d) { + return d.source; +} - function defaultRadius$1(d) { - return d.radius; - } +function defaultTarget(d) { + return d.target; +} - function defaultStartAngle(d) { - return d.startAngle; - } +function defaultRadius$1(d) { + return d.radius; +} - function defaultEndAngle(d) { - return d.endAngle; - } +function defaultStartAngle(d) { + return d.startAngle; +} - function ribbon() { - var source = defaultSource, - target = defaultTarget, - radius = defaultRadius$1, - startAngle = defaultStartAngle, - endAngle = defaultEndAngle, - context = null; +function defaultEndAngle(d) { + return d.endAngle; +} - function ribbon() { - var buffer, - argv = slice$5.call(arguments), - s = source.apply(this, argv), - t = target.apply(this, argv), - sr = +radius.apply(this, (argv[0] = s, argv)), - sa0 = startAngle.apply(this, argv) - halfPi$2, - sa1 = endAngle.apply(this, argv) - halfPi$2, - sx0 = sr * cos(sa0), - sy0 = sr * sin(sa0), - tr = +radius.apply(this, (argv[0] = t, argv)), - ta0 = startAngle.apply(this, argv) - halfPi$2, - ta1 = endAngle.apply(this, argv) - halfPi$2; +var ribbon = function() { + var source = defaultSource, + target = defaultTarget, + radius = defaultRadius$1, + startAngle = defaultStartAngle, + endAngle = defaultEndAngle, + context = null; - if (!context) context = buffer = path(); + function ribbon() { + var buffer, + argv = slice$5.call(arguments), + s = source.apply(this, argv), + t = target.apply(this, argv), + sr = +radius.apply(this, (argv[0] = s, argv)), + sa0 = startAngle.apply(this, argv) - halfPi$2, + sa1 = endAngle.apply(this, argv) - halfPi$2, + sx0 = sr * cos(sa0), + sy0 = sr * sin(sa0), + tr = +radius.apply(this, (argv[0] = t, argv)), + ta0 = startAngle.apply(this, argv) - halfPi$2, + ta1 = endAngle.apply(this, argv) - halfPi$2; - context.moveTo(sx0, sy0); - context.arc(0, 0, sr, sa0, sa1); - if (sa0 !== ta0 || sa1 !== ta1) { // TODO sr !== tr? - context.quadraticCurveTo(0, 0, tr * cos(ta0), tr * sin(ta0)); - context.arc(0, 0, tr, ta0, ta1); - } - context.quadraticCurveTo(0, 0, sx0, sy0); - context.closePath(); + if (!context) context = buffer = path(); - if (buffer) return context = null, buffer + "" || null; + context.moveTo(sx0, sy0); + context.arc(0, 0, sr, sa0, sa1); + if (sa0 !== ta0 || sa1 !== ta1) { // TODO sr !== tr? + context.quadraticCurveTo(0, 0, tr * cos(ta0), tr * sin(ta0)); + context.arc(0, 0, tr, ta0, ta1); } + context.quadraticCurveTo(0, 0, sx0, sy0); + context.closePath(); - ribbon.radius = function(_) { - return arguments.length ? (radius = typeof _ === "function" ? _ : constant$11(+_), ribbon) : radius; - }; + if (buffer) return context = null, buffer + "" || null; + } - ribbon.startAngle = function(_) { - return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$11(+_), ribbon) : startAngle; - }; + ribbon.radius = function(_) { + return arguments.length ? (radius = typeof _ === "function" ? _ : constant$12(+_), ribbon) : radius; + }; - ribbon.endAngle = function(_) { - return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$11(+_), ribbon) : endAngle; - }; + ribbon.startAngle = function(_) { + return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$12(+_), ribbon) : startAngle; + }; - ribbon.source = function(_) { - return arguments.length ? (source = _, ribbon) : source; - }; + ribbon.endAngle = function(_) { + return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$12(+_), ribbon) : endAngle; + }; - ribbon.target = function(_) { - return arguments.length ? (target = _, ribbon) : target; - }; + ribbon.source = function(_) { + return arguments.length ? (source = _, ribbon) : source; + }; - ribbon.context = function(_) { - return arguments.length ? ((context = _ == null ? null : _), ribbon) : context; - }; + ribbon.target = function(_) { + return arguments.length ? (target = _, ribbon) : target; + }; - return ribbon; - } + ribbon.context = function(_) { + return arguments.length ? ((context = _ == null ? null : _), ribbon) : context; + }; - // Adds floating point numbers with twice the normal precision. - // Reference: J. R. Shewchuk, Adaptive Precision Floating-Point Arithmetic and - // Fast Robust Geometric Predicates, Discrete & Computational Geometry 18(3) - // 305–363 (1997). - // Code adapted from GeographicLib by Charles F. F. Karney, - // http://geographiclib.sourceforge.net/ + return ribbon; +} - function adder() { - return new Adder; - } +// Adds floating point numbers with twice the normal precision. +// Reference: J. R. Shewchuk, Adaptive Precision Floating-Point Arithmetic and +// Fast Robust Geometric Predicates, Discrete & Computational Geometry 18(3) +// 305–363 (1997). +// Code adapted from GeographicLib by Charles F. F. Karney, +// http://geographiclib.sourceforge.net/ - function Adder() { - this.reset(); - } +var adder = function() { + return new Adder; +} - Adder.prototype = { - constructor: Adder, - reset: function() { - this.s = // rounded value - this.t = 0; // exact error - }, - add: function(y) { - add$1(temp, y, this.t); - add$1(this, temp.s, this.s); - if (this.s) this.t += temp.t; - else this.s = temp.t; - }, - valueOf: function() { - return this.s; - } - }; +function Adder() { + this.reset(); +} - var temp = new Adder; - - function add$1(adder, a, b) { - var x = adder.s = a + b, - bv = x - a, - av = x - bv; - adder.t = (a - av) + (b - bv); +Adder.prototype = { + constructor: Adder, + reset: function() { + this.s = // rounded value + this.t = 0; // exact error + }, + add: function(y) { + add$1(temp, y, this.t); + add$1(this, temp.s, this.s); + if (this.s) this.t += temp.t; + else this.s = temp.t; + }, + valueOf: function() { + return this.s; } +}; - var epsilon$4 = 1e-6; - var epsilon2$2 = 1e-12; - var pi$4 = Math.PI; - var halfPi$3 = pi$4 / 2; - var quarterPi = pi$4 / 4; - var tau$4 = pi$4 * 2; +var temp = new Adder; - var degrees$1 = 180 / pi$4; - var radians = pi$4 / 180; +function add$1(adder, a, b) { + var x = adder.s = a + b, + bv = x - a, + av = x - bv; + adder.t = (a - av) + (b - bv); +} - var abs = Math.abs; - var atan = Math.atan; - var atan2 = Math.atan2; - var cos$1 = Math.cos; - var ceil = Math.ceil; - var exp = Math.exp; - var log$1 = Math.log; - var pow$1 = Math.pow; - var sin$1 = Math.sin; - var sign$1 = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; }; - var sqrt$1 = Math.sqrt; - var tan = Math.tan; +var epsilon$4 = 1e-6; +var epsilon2$2 = 1e-12; +var pi$4 = Math.PI; +var halfPi$3 = pi$4 / 2; +var quarterPi = pi$4 / 4; +var tau$4 = pi$4 * 2; - function acos(x) { - return x > 1 ? 0 : x < -1 ? pi$4 : Math.acos(x); - } +var degrees$1 = 180 / pi$4; +var radians = pi$4 / 180; - function asin$1(x) { - return x > 1 ? halfPi$3 : x < -1 ? -halfPi$3 : Math.asin(x); - } +var abs = Math.abs; +var atan = Math.atan; +var atan2 = Math.atan2; +var cos$1 = Math.cos; +var ceil = Math.ceil; +var exp = Math.exp; - function haversin(x) { - return (x = sin$1(x / 2)) * x; - } +var log$1 = Math.log; +var pow$1 = Math.pow; +var sin$1 = Math.sin; +var sign$1 = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; }; +var sqrt$1 = Math.sqrt; +var tan = Math.tan; - function noop$2() {} +function acos(x) { + return x > 1 ? 0 : x < -1 ? pi$4 : Math.acos(x); +} - function streamGeometry(geometry, stream) { - if (geometry && streamGeometryType.hasOwnProperty(geometry.type)) { - streamGeometryType[geometry.type](geometry, stream); - } - } +function asin$1(x) { + return x > 1 ? halfPi$3 : x < -1 ? -halfPi$3 : Math.asin(x); +} - var streamObjectType = { - Feature: function(feature, stream) { - streamGeometry(feature.geometry, stream); - }, - FeatureCollection: function(object, stream) { - var features = object.features, i = -1, n = features.length; - while (++i < n) streamGeometry(features[i].geometry, stream); - } - }; +function haversin(x) { + return (x = sin$1(x / 2)) * x; +} - var streamGeometryType = { - Sphere: function(object, stream) { - stream.sphere(); - }, - Point: function(object, stream) { - object = object.coordinates; - stream.point(object[0], object[1], object[2]); - }, - MultiPoint: function(object, stream) { - var coordinates = object.coordinates, i = -1, n = coordinates.length; - while (++i < n) object = coordinates[i], stream.point(object[0], object[1], object[2]); - }, - LineString: function(object, stream) { - streamLine(object.coordinates, stream, 0); - }, - MultiLineString: function(object, stream) { - var coordinates = object.coordinates, i = -1, n = coordinates.length; - while (++i < n) streamLine(coordinates[i], stream, 0); - }, - Polygon: function(object, stream) { - streamPolygon(object.coordinates, stream); - }, - MultiPolygon: function(object, stream) { - var coordinates = object.coordinates, i = -1, n = coordinates.length; - while (++i < n) streamPolygon(coordinates[i], stream); - }, - GeometryCollection: function(object, stream) { - var geometries = object.geometries, i = -1, n = geometries.length; - while (++i < n) streamGeometry(geometries[i], stream); - } - }; +function noop$2() {} - function streamLine(coordinates, stream, closed) { - var i = -1, n = coordinates.length - closed, coordinate; - stream.lineStart(); - while (++i < n) coordinate = coordinates[i], stream.point(coordinate[0], coordinate[1], coordinate[2]); - stream.lineEnd(); +function streamGeometry(geometry, stream) { + if (geometry && streamGeometryType.hasOwnProperty(geometry.type)) { + streamGeometryType[geometry.type](geometry, stream); } +} - function streamPolygon(coordinates, stream) { - var i = -1, n = coordinates.length; - stream.polygonStart(); - while (++i < n) streamLine(coordinates[i], stream, 1); - stream.polygonEnd(); +var streamObjectType = { + Feature: function(feature, stream) { + streamGeometry(feature.geometry, stream); + }, + FeatureCollection: function(object, stream) { + var features = object.features, i = -1, n = features.length; + while (++i < n) streamGeometry(features[i].geometry, stream); } +}; - function geoStream(object, stream) { - if (object && streamObjectType.hasOwnProperty(object.type)) { - streamObjectType[object.type](object, stream); - } else { - streamGeometry(object, stream); - } +var streamGeometryType = { + Sphere: function(object, stream) { + stream.sphere(); + }, + Point: function(object, stream) { + object = object.coordinates; + stream.point(object[0], object[1], object[2]); + }, + MultiPoint: function(object, stream) { + var coordinates = object.coordinates, i = -1, n = coordinates.length; + while (++i < n) object = coordinates[i], stream.point(object[0], object[1], object[2]); + }, + LineString: function(object, stream) { + streamLine(object.coordinates, stream, 0); + }, + MultiLineString: function(object, stream) { + var coordinates = object.coordinates, i = -1, n = coordinates.length; + while (++i < n) streamLine(coordinates[i], stream, 0); + }, + Polygon: function(object, stream) { + streamPolygon(object.coordinates, stream); + }, + MultiPolygon: function(object, stream) { + var coordinates = object.coordinates, i = -1, n = coordinates.length; + while (++i < n) streamPolygon(coordinates[i], stream); + }, + GeometryCollection: function(object, stream) { + var geometries = object.geometries, i = -1, n = geometries.length; + while (++i < n) streamGeometry(geometries[i], stream); } +}; - var areaRingSum = adder(); +function streamLine(coordinates, stream, closed) { + var i = -1, n = coordinates.length - closed, coordinate; + stream.lineStart(); + while (++i < n) coordinate = coordinates[i], stream.point(coordinate[0], coordinate[1], coordinate[2]); + stream.lineEnd(); +} - var areaSum = adder(); - var lambda00; - var phi00; - var lambda0; - var cosPhi0; - var sinPhi0; - var areaStream = { - point: noop$2, - lineStart: noop$2, - lineEnd: noop$2, - polygonStart: function() { - areaRingSum.reset(); - areaStream.lineStart = areaRingStart; - areaStream.lineEnd = areaRingEnd; - }, - polygonEnd: function() { - var areaRing = +areaRingSum; - areaSum.add(areaRing < 0 ? tau$4 + areaRing : areaRing); - this.lineStart = this.lineEnd = this.point = noop$2; - }, - sphere: function() { - areaSum.add(tau$4); - } - }; +function streamPolygon(coordinates, stream) { + var i = -1, n = coordinates.length; + stream.polygonStart(); + while (++i < n) streamLine(coordinates[i], stream, 1); + stream.polygonEnd(); +} - function areaRingStart() { - areaStream.point = areaPointFirst; +var geoStream = function(object, stream) { + if (object && streamObjectType.hasOwnProperty(object.type)) { + streamObjectType[object.type](object, stream); + } else { + streamGeometry(object, stream); } +} - function areaRingEnd() { - areaPoint(lambda00, phi00); - } +var areaRingSum = adder(); - function areaPointFirst(lambda, phi) { - areaStream.point = areaPoint; - lambda00 = lambda, phi00 = phi; - lambda *= radians, phi *= radians; - lambda0 = lambda, cosPhi0 = cos$1(phi = phi / 2 + quarterPi), sinPhi0 = sin$1(phi); +var areaSum = adder(); +var lambda00; +var phi00; +var lambda0; +var cosPhi0; +var sinPhi0; + +var areaStream = { + point: noop$2, + lineStart: noop$2, + lineEnd: noop$2, + polygonStart: function() { + areaRingSum.reset(); + areaStream.lineStart = areaRingStart; + areaStream.lineEnd = areaRingEnd; + }, + polygonEnd: function() { + var areaRing = +areaRingSum; + areaSum.add(areaRing < 0 ? tau$4 + areaRing : areaRing); + this.lineStart = this.lineEnd = this.point = noop$2; + }, + sphere: function() { + areaSum.add(tau$4); } +}; - function areaPoint(lambda, phi) { - lambda *= radians, phi *= radians; - phi = phi / 2 + quarterPi; // half the angular distance from south pole +function areaRingStart() { + areaStream.point = areaPointFirst; +} - // Spherical excess E for a spherical triangle with vertices: south pole, - // previous point, current point. Uses a formula derived from Cagnoli’s - // theorem. See Todhunter, Spherical Trig. (1871), Sec. 103, Eq. (2). - var dLambda = lambda - lambda0, - sdLambda = dLambda >= 0 ? 1 : -1, - adLambda = sdLambda * dLambda, - cosPhi = cos$1(phi), - sinPhi = sin$1(phi), - k = sinPhi0 * sinPhi, - u = cosPhi0 * cosPhi + k * cos$1(adLambda), - v = k * sdLambda * sin$1(adLambda); - areaRingSum.add(atan2(v, u)); +function areaRingEnd() { + areaPoint(lambda00, phi00); +} - // Advance the previous points. - lambda0 = lambda, cosPhi0 = cosPhi, sinPhi0 = sinPhi; - } +function areaPointFirst(lambda, phi) { + areaStream.point = areaPoint; + lambda00 = lambda, phi00 = phi; + lambda *= radians, phi *= radians; + lambda0 = lambda, cosPhi0 = cos$1(phi = phi / 2 + quarterPi), sinPhi0 = sin$1(phi); +} - function area$2(object) { - areaSum.reset(); - geoStream(object, areaStream); - return areaSum * 2; - } +function areaPoint(lambda, phi) { + lambda *= radians, phi *= radians; + phi = phi / 2 + quarterPi; // half the angular distance from south pole - function spherical(cartesian) { - return [atan2(cartesian[1], cartesian[0]), asin$1(cartesian[2])]; - } + // Spherical excess E for a spherical triangle with vertices: south pole, + // previous point, current point. Uses a formula derived from Cagnoli’s + // theorem. See Todhunter, Spherical Trig. (1871), Sec. 103, Eq. (2). + var dLambda = lambda - lambda0, + sdLambda = dLambda >= 0 ? 1 : -1, + adLambda = sdLambda * dLambda, + cosPhi = cos$1(phi), + sinPhi = sin$1(phi), + k = sinPhi0 * sinPhi, + u = cosPhi0 * cosPhi + k * cos$1(adLambda), + v = k * sdLambda * sin$1(adLambda); + areaRingSum.add(atan2(v, u)); - function cartesian(spherical) { - var lambda = spherical[0], phi = spherical[1], cosPhi = cos$1(phi); - return [cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)]; - } + // Advance the previous points. + lambda0 = lambda, cosPhi0 = cosPhi, sinPhi0 = sinPhi; +} - function cartesianDot(a, b) { - return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; - } +var area$2 = function(object) { + areaSum.reset(); + geoStream(object, areaStream); + return areaSum * 2; +} - function cartesianCross(a, b) { - return [a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]]; - } +function spherical(cartesian) { + return [atan2(cartesian[1], cartesian[0]), asin$1(cartesian[2])]; +} - // TODO return a - function cartesianAddInPlace(a, b) { - a[0] += b[0], a[1] += b[1], a[2] += b[2]; - } +function cartesian(spherical) { + var lambda = spherical[0], phi = spherical[1], cosPhi = cos$1(phi); + return [cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)]; +} - function cartesianScale(vector, k) { - return [vector[0] * k, vector[1] * k, vector[2] * k]; - } +function cartesianDot(a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; +} - // TODO return d - function cartesianNormalizeInPlace(d) { - var l = sqrt$1(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]); - d[0] /= l, d[1] /= l, d[2] /= l; - } +function cartesianCross(a, b) { + return [a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]]; +} -var lambda0$1; - var phi0; - var lambda1; - var phi1; - var lambda2; -var lambda00$1; -var phi00$1; - var p0; - var deltaSum = adder(); - var ranges; -var range$1; - var boundsStream = { - point: boundsPoint, - lineStart: boundsLineStart, - lineEnd: boundsLineEnd, - polygonStart: function() { - boundsStream.point = boundsRingPoint; - boundsStream.lineStart = boundsRingStart; - boundsStream.lineEnd = boundsRingEnd; - deltaSum.reset(); - areaStream.polygonStart(); - }, - polygonEnd: function() { - areaStream.polygonEnd(); - boundsStream.point = boundsPoint; - boundsStream.lineStart = boundsLineStart; - boundsStream.lineEnd = boundsLineEnd; - if (areaRingSum < 0) lambda0$1 = -(lambda1 = 180), phi0 = -(phi1 = 90); - else if (deltaSum > epsilon$4) phi1 = 90; - else if (deltaSum < -epsilon$4) phi0 = -90; - range$1[0] = lambda0$1, range$1[1] = lambda1; - } - }; +// TODO return a +function cartesianAddInPlace(a, b) { + a[0] += b[0], a[1] += b[1], a[2] += b[2]; +} - function boundsPoint(lambda, phi) { - ranges.push(range$1 = [lambda0$1 = lambda, lambda1 = lambda]); - if (phi < phi0) phi0 = phi; - if (phi > phi1) phi1 = phi; +function cartesianScale(vector, k) { + return [vector[0] * k, vector[1] * k, vector[2] * k]; +} + +// TODO return d +function cartesianNormalizeInPlace(d) { + var l = sqrt$1(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]); + d[0] /= l, d[1] /= l, d[2] /= l; +} + +var lambda0$1; +var phi0; +var lambda1; +var phi1; +var lambda2; +var lambda00$1; +var phi00$1; +var p0; +var deltaSum = adder(); +var ranges; +var range$1; + +var boundsStream = { + point: boundsPoint, + lineStart: boundsLineStart, + lineEnd: boundsLineEnd, + polygonStart: function() { + boundsStream.point = boundsRingPoint; + boundsStream.lineStart = boundsRingStart; + boundsStream.lineEnd = boundsRingEnd; + deltaSum.reset(); + areaStream.polygonStart(); + }, + polygonEnd: function() { + areaStream.polygonEnd(); + boundsStream.point = boundsPoint; + boundsStream.lineStart = boundsLineStart; + boundsStream.lineEnd = boundsLineEnd; + if (areaRingSum < 0) lambda0$1 = -(lambda1 = 180), phi0 = -(phi1 = 90); + else if (deltaSum > epsilon$4) phi1 = 90; + else if (deltaSum < -epsilon$4) phi0 = -90; + range$1[0] = lambda0$1, range$1[1] = lambda1; } +}; - function linePoint(lambda, phi) { - var p = cartesian([lambda * radians, phi * radians]); - if (p0) { - var normal = cartesianCross(p0, p), - equatorial = [normal[1], -normal[0], 0], - inflection = cartesianCross(equatorial, normal); - cartesianNormalizeInPlace(inflection); - inflection = spherical(inflection); - var delta = lambda - lambda2, - sign = delta > 0 ? 1 : -1, - lambdai = inflection[0] * degrees$1 * sign, - phii, - antimeridian = abs(delta) > 180; - if (antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) { - phii = inflection[1] * degrees$1; - if (phii > phi1) phi1 = phii; - } else if (lambdai = (lambdai + 360) % 360 - 180, antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) { - phii = -inflection[1] * degrees$1; - if (phii < phi0) phi0 = phii; +function boundsPoint(lambda, phi) { + ranges.push(range$1 = [lambda0$1 = lambda, lambda1 = lambda]); + if (phi < phi0) phi0 = phi; + if (phi > phi1) phi1 = phi; +} + +function linePoint(lambda, phi) { + var p = cartesian([lambda * radians, phi * radians]); + if (p0) { + var normal = cartesianCross(p0, p), + equatorial = [normal[1], -normal[0], 0], + inflection = cartesianCross(equatorial, normal); + cartesianNormalizeInPlace(inflection); + inflection = spherical(inflection); + var delta = lambda - lambda2, + sign$$1 = delta > 0 ? 1 : -1, + lambdai = inflection[0] * degrees$1 * sign$$1, + phii, + antimeridian = abs(delta) > 180; + if (antimeridian ^ (sign$$1 * lambda2 < lambdai && lambdai < sign$$1 * lambda)) { + phii = inflection[1] * degrees$1; + if (phii > phi1) phi1 = phii; + } else if (lambdai = (lambdai + 360) % 360 - 180, antimeridian ^ (sign$$1 * lambda2 < lambdai && lambdai < sign$$1 * lambda)) { + phii = -inflection[1] * degrees$1; + if (phii < phi0) phi0 = phii; + } else { + if (phi < phi0) phi0 = phi; + if (phi > phi1) phi1 = phi; + } + if (antimeridian) { + if (lambda < lambda2) { + if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda; } else { - if (phi < phi0) phi0 = phi; - if (phi > phi1) phi1 = phi; + if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda; } - if (antimeridian) { - if (lambda < lambda2) { + } else { + if (lambda1 >= lambda0$1) { + if (lambda < lambda0$1) lambda0$1 = lambda; + if (lambda > lambda1) lambda1 = lambda; + } else { + if (lambda > lambda2) { if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda; } else { if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda; } - } else { - if (lambda1 >= lambda0$1) { - if (lambda < lambda0$1) lambda0$1 = lambda; - if (lambda > lambda1) lambda1 = lambda; - } else { - if (lambda > lambda2) { - if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda; - } else { - if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda; - } - } } - } else { - boundsPoint(lambda, phi); } - p0 = p, lambda2 = lambda; + } else { + boundsPoint(lambda, phi); } + p0 = p, lambda2 = lambda; +} - function boundsLineStart() { - boundsStream.point = linePoint; - } +function boundsLineStart() { + boundsStream.point = linePoint; +} - function boundsLineEnd() { - range$1[0] = lambda0$1, range$1[1] = lambda1; - boundsStream.point = boundsPoint; - p0 = null; - } +function boundsLineEnd() { + range$1[0] = lambda0$1, range$1[1] = lambda1; + boundsStream.point = boundsPoint; + p0 = null; +} - function boundsRingPoint(lambda, phi) { - if (p0) { - var delta = lambda - lambda2; - deltaSum.add(abs(delta) > 180 ? delta + (delta > 0 ? 360 : -360) : delta); - } else { - lambda00$1 = lambda, phi00$1 = phi; - } - areaStream.point(lambda, phi); - linePoint(lambda, phi); +function boundsRingPoint(lambda, phi) { + if (p0) { + var delta = lambda - lambda2; + deltaSum.add(abs(delta) > 180 ? delta + (delta > 0 ? 360 : -360) : delta); + } else { + lambda00$1 = lambda, phi00$1 = phi; } + areaStream.point(lambda, phi); + linePoint(lambda, phi); +} - function boundsRingStart() { - areaStream.lineStart(); - } +function boundsRingStart() { + areaStream.lineStart(); +} - function boundsRingEnd() { - boundsRingPoint(lambda00$1, phi00$1); - areaStream.lineEnd(); - if (abs(deltaSum) > epsilon$4) lambda0$1 = -(lambda1 = 180); - range$1[0] = lambda0$1, range$1[1] = lambda1; - p0 = null; - } +function boundsRingEnd() { + boundsRingPoint(lambda00$1, phi00$1); + areaStream.lineEnd(); + if (abs(deltaSum) > epsilon$4) lambda0$1 = -(lambda1 = 180); + range$1[0] = lambda0$1, range$1[1] = lambda1; + p0 = null; +} - // Finds the left-right distance between two longitudes. - // This is almost the same as (lambda1 - lambda0 + 360°) % 360°, except that we want - // the distance between ±180° to be 360°. - function angle(lambda0, lambda1) { - return (lambda1 -= lambda0) < 0 ? lambda1 + 360 : lambda1; - } +// Finds the left-right distance between two longitudes. +// This is almost the same as (lambda1 - lambda0 + 360°) % 360°, except that we want +// the distance between ±180° to be 360°. +function angle(lambda0, lambda1) { + return (lambda1 -= lambda0) < 0 ? lambda1 + 360 : lambda1; +} - function rangeCompare(a, b) { - return a[0] - b[0]; - } +function rangeCompare(a, b) { + return a[0] - b[0]; +} - function rangeContains(range, x) { - return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x; - } +function rangeContains(range, x) { + return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x; +} - function bounds(feature) { - var i, n, a, b, merged, deltaMax, delta; +var bounds = function(feature) { + var i, n, a, b, merged, deltaMax, delta; - phi1 = lambda1 = -(lambda0$1 = phi0 = Infinity); - ranges = []; - geoStream(feature, boundsStream); + phi1 = lambda1 = -(lambda0$1 = phi0 = Infinity); + ranges = []; + geoStream(feature, boundsStream); - // First, sort ranges by their minimum longitudes. - if (n = ranges.length) { - ranges.sort(rangeCompare); + // First, sort ranges by their minimum longitudes. + if (n = ranges.length) { + ranges.sort(rangeCompare); - // Then, merge any ranges that overlap. - for (i = 1, a = ranges[0], merged = [a]; i < n; ++i) { - b = ranges[i]; - if (rangeContains(a, b[0]) || rangeContains(a, b[1])) { - if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1]; - if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0]; - } else { - merged.push(a = b); - } + // Then, merge any ranges that overlap. + for (i = 1, a = ranges[0], merged = [a]; i < n; ++i) { + b = ranges[i]; + if (rangeContains(a, b[0]) || rangeContains(a, b[1])) { + if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1]; + if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0]; + } else { + merged.push(a = b); } - - // Finally, find the largest gap between the merged ranges. - // The final bounding box will be the inverse of this gap. - for (deltaMax = -Infinity, n = merged.length - 1, i = 0, a = merged[n]; i <= n; a = b, ++i) { - b = merged[i]; - if ((delta = angle(a[1], b[0])) > deltaMax) deltaMax = delta, lambda0$1 = b[0], lambda1 = a[1]; - } } - ranges = range$1 = null; - - return lambda0$1 === Infinity || phi0 === Infinity - ? [[NaN, NaN], [NaN, NaN]] - : [[lambda0$1, phi0], [lambda1, phi1]]; + // Finally, find the largest gap between the merged ranges. + // The final bounding box will be the inverse of this gap. + for (deltaMax = -Infinity, n = merged.length - 1, i = 0, a = merged[n]; i <= n; a = b, ++i) { + b = merged[i]; + if ((delta = angle(a[1], b[0])) > deltaMax) deltaMax = delta, lambda0$1 = b[0], lambda1 = a[1]; + } } - var W0; - var W1; - var X0; - var Y0; - var Z0; - var X1; - var Y1; - var Z1; - var X2; - var Y2; - var Z2; -var lambda00$2; -var phi00$2; - var x0; - var y0; - var z0; - // previous point + ranges = range$1 = null; - var centroidStream = { - sphere: noop$2, - point: centroidPoint, - lineStart: centroidLineStart, - lineEnd: centroidLineEnd, - polygonStart: function() { - centroidStream.lineStart = centroidRingStart; - centroidStream.lineEnd = centroidRingEnd; - }, - polygonEnd: function() { - centroidStream.lineStart = centroidLineStart; - centroidStream.lineEnd = centroidLineEnd; - } - }; + return lambda0$1 === Infinity || phi0 === Infinity + ? [[NaN, NaN], [NaN, NaN]] + : [[lambda0$1, phi0], [lambda1, phi1]]; +} - // Arithmetic mean of Cartesian vectors. - function centroidPoint(lambda, phi) { - lambda *= radians, phi *= radians; - var cosPhi = cos$1(phi); - centroidPointCartesian(cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)); - } +var W0; +var W1; +var X0; +var Y0; +var Z0; +var X1; +var Y1; +var Z1; +var X2; +var Y2; +var Z2; +var lambda00$2; +var phi00$2; +var x0; +var y0; +var z0; // previous point - function centroidPointCartesian(x, y, z) { - ++W0; - X0 += (x - X0) / W0; - Y0 += (y - Y0) / W0; - Z0 += (z - Z0) / W0; +var centroidStream = { + sphere: noop$2, + point: centroidPoint, + lineStart: centroidLineStart, + lineEnd: centroidLineEnd, + polygonStart: function() { + centroidStream.lineStart = centroidRingStart; + centroidStream.lineEnd = centroidRingEnd; + }, + polygonEnd: function() { + centroidStream.lineStart = centroidLineStart; + centroidStream.lineEnd = centroidLineEnd; } +}; - function centroidLineStart() { - centroidStream.point = centroidLinePointFirst; - } +// Arithmetic mean of Cartesian vectors. +function centroidPoint(lambda, phi) { + lambda *= radians, phi *= radians; + var cosPhi = cos$1(phi); + centroidPointCartesian(cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)); +} - function centroidLinePointFirst(lambda, phi) { - lambda *= radians, phi *= radians; - var cosPhi = cos$1(phi); - x0 = cosPhi * cos$1(lambda); - y0 = cosPhi * sin$1(lambda); - z0 = sin$1(phi); - centroidStream.point = centroidLinePoint; - centroidPointCartesian(x0, y0, z0); - } +function centroidPointCartesian(x, y, z) { + ++W0; + X0 += (x - X0) / W0; + Y0 += (y - Y0) / W0; + Z0 += (z - Z0) / W0; +} - function centroidLinePoint(lambda, phi) { - lambda *= radians, phi *= radians; - var cosPhi = cos$1(phi), - x = cosPhi * cos$1(lambda), - y = cosPhi * sin$1(lambda), - z = sin$1(phi), - w = atan2(sqrt$1((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z); - W1 += w; - X1 += w * (x0 + (x0 = x)); - Y1 += w * (y0 + (y0 = y)); - Z1 += w * (z0 + (z0 = z)); - centroidPointCartesian(x0, y0, z0); - } +function centroidLineStart() { + centroidStream.point = centroidLinePointFirst; +} - function centroidLineEnd() { - centroidStream.point = centroidPoint; - } +function centroidLinePointFirst(lambda, phi) { + lambda *= radians, phi *= radians; + var cosPhi = cos$1(phi); + x0 = cosPhi * cos$1(lambda); + y0 = cosPhi * sin$1(lambda); + z0 = sin$1(phi); + centroidStream.point = centroidLinePoint; + centroidPointCartesian(x0, y0, z0); +} - // See J. E. Brock, The Inertia Tensor for a Spherical Triangle, - // J. Applied Mechanics 42, 239 (1975). - function centroidRingStart() { - centroidStream.point = centroidRingPointFirst; - } +function centroidLinePoint(lambda, phi) { + lambda *= radians, phi *= radians; + var cosPhi = cos$1(phi), + x = cosPhi * cos$1(lambda), + y = cosPhi * sin$1(lambda), + z = sin$1(phi), + w = atan2(sqrt$1((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z); + W1 += w; + X1 += w * (x0 + (x0 = x)); + Y1 += w * (y0 + (y0 = y)); + Z1 += w * (z0 + (z0 = z)); + centroidPointCartesian(x0, y0, z0); +} - function centroidRingEnd() { - centroidRingPoint(lambda00$2, phi00$2); - centroidStream.point = centroidPoint; - } +function centroidLineEnd() { + centroidStream.point = centroidPoint; +} - function centroidRingPointFirst(lambda, phi) { - lambda00$2 = lambda, phi00$2 = phi; - lambda *= radians, phi *= radians; - centroidStream.point = centroidRingPoint; - var cosPhi = cos$1(phi); - x0 = cosPhi * cos$1(lambda); - y0 = cosPhi * sin$1(lambda); - z0 = sin$1(phi); - centroidPointCartesian(x0, y0, z0); - } +// See J. E. Brock, The Inertia Tensor for a Spherical Triangle, +// J. Applied Mechanics 42, 239 (1975). +function centroidRingStart() { + centroidStream.point = centroidRingPointFirst; +} - function centroidRingPoint(lambda, phi) { - lambda *= radians, phi *= radians; - var cosPhi = cos$1(phi), - x = cosPhi * cos$1(lambda), - y = cosPhi * sin$1(lambda), - z = sin$1(phi), - cx = y0 * z - z0 * y, - cy = z0 * x - x0 * z, - cz = x0 * y - y0 * x, - m = sqrt$1(cx * cx + cy * cy + cz * cz), - u = x0 * x + y0 * y + z0 * z, - v = m && -acos(u) / m, // area weight - w = atan2(m, u); // line weight - X2 += v * cx; - Y2 += v * cy; - Z2 += v * cz; - W1 += w; - X1 += w * (x0 + (x0 = x)); - Y1 += w * (y0 + (y0 = y)); - Z1 += w * (z0 + (z0 = z)); - centroidPointCartesian(x0, y0, z0); - } +function centroidRingEnd() { + centroidRingPoint(lambda00$2, phi00$2); + centroidStream.point = centroidPoint; +} - function centroid$1(object) { - W0 = W1 = - X0 = Y0 = Z0 = - X1 = Y1 = Z1 = - X2 = Y2 = Z2 = 0; - geoStream(object, centroidStream); +function centroidRingPointFirst(lambda, phi) { + lambda00$2 = lambda, phi00$2 = phi; + lambda *= radians, phi *= radians; + centroidStream.point = centroidRingPoint; + var cosPhi = cos$1(phi); + x0 = cosPhi * cos$1(lambda); + y0 = cosPhi * sin$1(lambda); + z0 = sin$1(phi); + centroidPointCartesian(x0, y0, z0); +} - var x = X2, - y = Y2, - z = Z2, - m = x * x + y * y + z * z; +function centroidRingPoint(lambda, phi) { + lambda *= radians, phi *= radians; + var cosPhi = cos$1(phi), + x = cosPhi * cos$1(lambda), + y = cosPhi * sin$1(lambda), + z = sin$1(phi), + cx = y0 * z - z0 * y, + cy = z0 * x - x0 * z, + cz = x0 * y - y0 * x, + m = sqrt$1(cx * cx + cy * cy + cz * cz), + u = x0 * x + y0 * y + z0 * z, + v = m && -acos(u) / m, // area weight + w = atan2(m, u); // line weight + X2 += v * cx; + Y2 += v * cy; + Z2 += v * cz; + W1 += w; + X1 += w * (x0 + (x0 = x)); + Y1 += w * (y0 + (y0 = y)); + Z1 += w * (z0 + (z0 = z)); + centroidPointCartesian(x0, y0, z0); +} - // If the area-weighted ccentroid is undefined, fall back to length-weighted ccentroid. - if (m < epsilon2$2) { - x = X1, y = Y1, z = Z1; - // If the feature has zero length, fall back to arithmetic mean of point vectors. - if (W1 < epsilon$4) x = X0, y = Y0, z = Z0; +var centroid$1 = function(object) { + W0 = W1 = + X0 = Y0 = Z0 = + X1 = Y1 = Z1 = + X2 = Y2 = Z2 = 0; + geoStream(object, centroidStream); + + var x = X2, + y = Y2, + z = Z2, m = x * x + y * y + z * z; - // If the feature still has an undefined ccentroid, then return. - if (m < epsilon2$2) return [NaN, NaN]; - } - return [atan2(y, x) * degrees$1, asin$1(z / sqrt$1(m)) * degrees$1]; + // If the area-weighted ccentroid is undefined, fall back to length-weighted ccentroid. + if (m < epsilon2$2) { + x = X1, y = Y1, z = Z1; + // If the feature has zero length, fall back to arithmetic mean of point vectors. + if (W1 < epsilon$4) x = X0, y = Y0, z = Z0; + m = x * x + y * y + z * z; + // If the feature still has an undefined ccentroid, then return. + if (m < epsilon2$2) return [NaN, NaN]; } - function constant$12(x) { - return function() { - return x; - }; - } + return [atan2(y, x) * degrees$1, asin$1(z / sqrt$1(m)) * degrees$1]; +} - function compose(a, b) { +var constant$13 = function(x) { + return function() { + return x; + }; +} - function compose(x, y) { - return x = a(x, y), b(x[0], x[1]); - } +var compose = function(a, b) { - if (a.invert && b.invert) compose.invert = function(x, y) { - return x = b.invert(x, y), x && a.invert(x[0], x[1]); - }; - - return compose; + function compose(x, y) { + return x = a(x, y), b(x[0], x[1]); } - function rotationIdentity(lambda, phi) { - return [lambda > pi$4 ? lambda - tau$4 : lambda < -pi$4 ? lambda + tau$4 : lambda, phi]; - } + if (a.invert && b.invert) compose.invert = function(x, y) { + return x = b.invert(x, y), x && a.invert(x[0], x[1]); + }; - rotationIdentity.invert = rotationIdentity; + return compose; +} - function rotateRadians(deltaLambda, deltaPhi, deltaGamma) { - return (deltaLambda %= tau$4) ? (deltaPhi || deltaGamma ? compose(rotationLambda(deltaLambda), rotationPhiGamma(deltaPhi, deltaGamma)) - : rotationLambda(deltaLambda)) - : (deltaPhi || deltaGamma ? rotationPhiGamma(deltaPhi, deltaGamma) - : rotationIdentity); - } +function rotationIdentity(lambda, phi) { + return [lambda > pi$4 ? lambda - tau$4 : lambda < -pi$4 ? lambda + tau$4 : lambda, phi]; +} - function forwardRotationLambda(deltaLambda) { - return function(lambda, phi) { - return lambda += deltaLambda, [lambda > pi$4 ? lambda - tau$4 : lambda < -pi$4 ? lambda + tau$4 : lambda, phi]; - }; - } +rotationIdentity.invert = rotationIdentity; - function rotationLambda(deltaLambda) { - var rotation = forwardRotationLambda(deltaLambda); - rotation.invert = forwardRotationLambda(-deltaLambda); - return rotation; - } +function rotateRadians(deltaLambda, deltaPhi, deltaGamma) { + return (deltaLambda %= tau$4) ? (deltaPhi || deltaGamma ? compose(rotationLambda(deltaLambda), rotationPhiGamma(deltaPhi, deltaGamma)) + : rotationLambda(deltaLambda)) + : (deltaPhi || deltaGamma ? rotationPhiGamma(deltaPhi, deltaGamma) + : rotationIdentity); +} - function rotationPhiGamma(deltaPhi, deltaGamma) { - var cosDeltaPhi = cos$1(deltaPhi), - sinDeltaPhi = sin$1(deltaPhi), - cosDeltaGamma = cos$1(deltaGamma), - sinDeltaGamma = sin$1(deltaGamma); +function forwardRotationLambda(deltaLambda) { + return function(lambda, phi) { + return lambda += deltaLambda, [lambda > pi$4 ? lambda - tau$4 : lambda < -pi$4 ? lambda + tau$4 : lambda, phi]; + }; +} - function rotation(lambda, phi) { - var cosPhi = cos$1(phi), - x = cos$1(lambda) * cosPhi, - y = sin$1(lambda) * cosPhi, - z = sin$1(phi), - k = z * cosDeltaPhi + x * sinDeltaPhi; - return [ - atan2(y * cosDeltaGamma - k * sinDeltaGamma, x * cosDeltaPhi - z * sinDeltaPhi), - asin$1(k * cosDeltaGamma + y * sinDeltaGamma) - ]; - } +function rotationLambda(deltaLambda) { + var rotation = forwardRotationLambda(deltaLambda); + rotation.invert = forwardRotationLambda(-deltaLambda); + return rotation; +} - rotation.invert = function(lambda, phi) { - var cosPhi = cos$1(phi), - x = cos$1(lambda) * cosPhi, - y = sin$1(lambda) * cosPhi, - z = sin$1(phi), - k = z * cosDeltaGamma - y * sinDeltaGamma; - return [ - atan2(y * cosDeltaGamma + z * sinDeltaGamma, x * cosDeltaPhi + k * sinDeltaPhi), - asin$1(k * cosDeltaPhi - x * sinDeltaPhi) - ]; - }; +function rotationPhiGamma(deltaPhi, deltaGamma) { + var cosDeltaPhi = cos$1(deltaPhi), + sinDeltaPhi = sin$1(deltaPhi), + cosDeltaGamma = cos$1(deltaGamma), + sinDeltaGamma = sin$1(deltaGamma); - return rotation; + function rotation(lambda, phi) { + var cosPhi = cos$1(phi), + x = cos$1(lambda) * cosPhi, + y = sin$1(lambda) * cosPhi, + z = sin$1(phi), + k = z * cosDeltaPhi + x * sinDeltaPhi; + return [ + atan2(y * cosDeltaGamma - k * sinDeltaGamma, x * cosDeltaPhi - z * sinDeltaPhi), + asin$1(k * cosDeltaGamma + y * sinDeltaGamma) + ]; } - function rotation(rotate) { - rotate = rotateRadians(rotate[0] * radians, rotate[1] * radians, rotate.length > 2 ? rotate[2] * radians : 0); + rotation.invert = function(lambda, phi) { + var cosPhi = cos$1(phi), + x = cos$1(lambda) * cosPhi, + y = sin$1(lambda) * cosPhi, + z = sin$1(phi), + k = z * cosDeltaGamma - y * sinDeltaGamma; + return [ + atan2(y * cosDeltaGamma + z * sinDeltaGamma, x * cosDeltaPhi + k * sinDeltaPhi), + asin$1(k * cosDeltaPhi - x * sinDeltaPhi) + ]; + }; - function forward(coordinates) { - coordinates = rotate(coordinates[0] * radians, coordinates[1] * radians); - return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates; - } + return rotation; +} - forward.invert = function(coordinates) { - coordinates = rotate.invert(coordinates[0] * radians, coordinates[1] * radians); - return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates; - }; +var rotation = function(rotate) { + rotate = rotateRadians(rotate[0] * radians, rotate[1] * radians, rotate.length > 2 ? rotate[2] * radians : 0); - return forward; + function forward(coordinates) { + coordinates = rotate(coordinates[0] * radians, coordinates[1] * radians); + return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates; } - // Generates a circle centered at [0°, 0°], with a given radius and precision. - function circleStream(stream, radius, delta, direction, t0, t1) { - if (!delta) return; - var cosRadius = cos$1(radius), - sinRadius = sin$1(radius), - step = direction * delta; - if (t0 == null) { - t0 = radius + direction * tau$4; - t1 = radius - step / 2; - } else { - t0 = circleRadius(cosRadius, t0); - t1 = circleRadius(cosRadius, t1); - if (direction > 0 ? t0 < t1 : t0 > t1) t0 += direction * tau$4; - } - for (var point, t = t0; direction > 0 ? t > t1 : t < t1; t -= step) { - point = spherical([cosRadius, -sinRadius * cos$1(t), -sinRadius * sin$1(t)]); - stream.point(point[0], point[1]); - } - } + forward.invert = function(coordinates) { + coordinates = rotate.invert(coordinates[0] * radians, coordinates[1] * radians); + return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates; + }; - // Returns the signed angle of a cartesian point relative to [cosRadius, 0, 0]. - function circleRadius(cosRadius, point) { - point = cartesian(point), point[0] -= cosRadius; - cartesianNormalizeInPlace(point); - var radius = acos(-point[1]); - return ((-point[2] < 0 ? -radius : radius) + tau$4 - epsilon$4) % tau$4; + return forward; +} + +// Generates a circle centered at [0°, 0°], with a given radius and precision. +function circleStream(stream, radius, delta, direction, t0, t1) { + if (!delta) return; + var cosRadius = cos$1(radius), + sinRadius = sin$1(radius), + step = direction * delta; + if (t0 == null) { + t0 = radius + direction * tau$4; + t1 = radius - step / 2; + } else { + t0 = circleRadius(cosRadius, t0); + t1 = circleRadius(cosRadius, t1); + if (direction > 0 ? t0 < t1 : t0 > t1) t0 += direction * tau$4; } + for (var point, t = t0; direction > 0 ? t > t1 : t < t1; t -= step) { + point = spherical([cosRadius, -sinRadius * cos$1(t), -sinRadius * sin$1(t)]); + stream.point(point[0], point[1]); + } +} - function circle$1() { - var center = constant$12([0, 0]), - radius = constant$12(90), - precision = constant$12(6), - ring, - rotate, - stream = {point: point}; +// Returns the signed angle of a cartesian point relative to [cosRadius, 0, 0]. +function circleRadius(cosRadius, point) { + point = cartesian(point), point[0] -= cosRadius; + cartesianNormalizeInPlace(point); + var radius = acos(-point[1]); + return ((-point[2] < 0 ? -radius : radius) + tau$4 - epsilon$4) % tau$4; +} - function point(x, y) { - ring.push(x = rotate(x, y)); - x[0] *= degrees$1, x[1] *= degrees$1; - } +var circle$1 = function() { + var center = constant$13([0, 0]), + radius = constant$13(90), + precision = constant$13(6), + ring, + rotate, + stream = {point: point}; - function circle() { - var c = center.apply(this, arguments), - r = radius.apply(this, arguments) * radians, - p = precision.apply(this, arguments) * radians; - ring = []; - rotate = rotateRadians(-c[0] * radians, -c[1] * radians, 0).invert; - circleStream(stream, r, p, 1); - c = {type: "Polygon", coordinates: [ring]}; - ring = rotate = null; - return c; - } - - circle.center = function(_) { - return arguments.length ? (center = typeof _ === "function" ? _ : constant$12([+_[0], +_[1]]), circle) : center; - }; - - circle.radius = function(_) { - return arguments.length ? (radius = typeof _ === "function" ? _ : constant$12(+_), circle) : radius; - }; - - circle.precision = function(_) { - return arguments.length ? (precision = typeof _ === "function" ? _ : constant$12(+_), circle) : precision; - }; - - return circle; + function point(x, y) { + ring.push(x = rotate(x, y)); + x[0] *= degrees$1, x[1] *= degrees$1; } - function clipBuffer() { - var lines = [], - line; - return { - point: function(x, y) { - line.push([x, y]); - }, - lineStart: function() { - lines.push(line = []); - }, - lineEnd: noop$2, - rejoin: function() { - if (lines.length > 1) lines.push(lines.pop().concat(lines.shift())); - }, - result: function() { - var result = lines; - lines = []; - line = null; - return result; - } - }; + function circle() { + var c = center.apply(this, arguments), + r = radius.apply(this, arguments) * radians, + p = precision.apply(this, arguments) * radians; + ring = []; + rotate = rotateRadians(-c[0] * radians, -c[1] * radians, 0).invert; + circleStream(stream, r, p, 1); + c = {type: "Polygon", coordinates: [ring]}; + ring = rotate = null; + return c; } - function clipLine(a, b, x0, y0, x1, y1) { - var ax = a[0], - ay = a[1], - bx = b[0], - by = b[1], - t0 = 0, - t1 = 1, - dx = bx - ax, - dy = by - ay, - r; + circle.center = function(_) { + return arguments.length ? (center = typeof _ === "function" ? _ : constant$13([+_[0], +_[1]]), circle) : center; + }; - r = x0 - ax; - if (!dx && r > 0) return; - r /= dx; - if (dx < 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } else if (dx > 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } + circle.radius = function(_) { + return arguments.length ? (radius = typeof _ === "function" ? _ : constant$13(+_), circle) : radius; + }; - r = x1 - ax; - if (!dx && r < 0) return; - r /= dx; - if (dx < 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } else if (dx > 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } + circle.precision = function(_) { + return arguments.length ? (precision = typeof _ === "function" ? _ : constant$13(+_), circle) : precision; + }; - r = y0 - ay; - if (!dy && r > 0) return; - r /= dy; - if (dy < 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } else if (dy > 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } + return circle; +} - r = y1 - ay; - if (!dy && r < 0) return; - r /= dy; - if (dy < 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } else if (dy > 0) { - if (r < t0) return; - if (r < t1) t1 = r; +var clipBuffer = function() { + var lines = [], + line; + return { + point: function(x, y) { + line.push([x, y]); + }, + lineStart: function() { + lines.push(line = []); + }, + lineEnd: noop$2, + rejoin: function() { + if (lines.length > 1) lines.push(lines.pop().concat(lines.shift())); + }, + result: function() { + var result = lines; + lines = []; + line = null; + return result; } + }; +} - if (t0 > 0) a[0] = ax + t0 * dx, a[1] = ay + t0 * dy; - if (t1 < 1) b[0] = ax + t1 * dx, b[1] = ay + t1 * dy; - return true; +var clipLine = function(a, b, x0, y0, x1, y1) { + var ax = a[0], + ay = a[1], + bx = b[0], + by = b[1], + t0 = 0, + t1 = 1, + dx = bx - ax, + dy = by - ay, + r; + + r = x0 - ax; + if (!dx && r > 0) return; + r /= dx; + if (dx < 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } else if (dx > 0) { + if (r > t1) return; + if (r > t0) t0 = r; } - function pointEqual(a, b) { - return abs(a[0] - b[0]) < epsilon$4 && abs(a[1] - b[1]) < epsilon$4; + r = x1 - ax; + if (!dx && r < 0) return; + r /= dx; + if (dx < 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } else if (dx > 0) { + if (r < t0) return; + if (r < t1) t1 = r; } - function Intersection(point, points, other, entry) { - this.x = point; - this.z = points; - this.o = other; // another intersection - this.e = entry; // is an entry? - this.v = false; // visited - this.n = this.p = null; // next & previous + r = y0 - ay; + if (!dy && r > 0) return; + r /= dy; + if (dy < 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } else if (dy > 0) { + if (r > t1) return; + if (r > t0) t0 = r; } - // A generalized polygon clipping algorithm: given a polygon that has been cut - // into its visible line segments, and rejoins the segments by interpolating - // along the clip edge. - function clipPolygon(segments, compareIntersection, startInside, interpolate, stream) { - var subject = [], - clip = [], - i, - n; + r = y1 - ay; + if (!dy && r < 0) return; + r /= dy; + if (dy < 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } else if (dy > 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } - segments.forEach(function(segment) { - if ((n = segment.length - 1) <= 0) return; - var n, p0 = segment[0], p1 = segment[n], x; + if (t0 > 0) a[0] = ax + t0 * dx, a[1] = ay + t0 * dy; + if (t1 < 1) b[0] = ax + t1 * dx, b[1] = ay + t1 * dy; + return true; +} - // If the first and last points of a segment are coincident, then treat as a - // closed ring. TODO if all rings are closed, then the winding order of the - // exterior ring should be checked. - if (pointEqual(p0, p1)) { - stream.lineStart(); - for (i = 0; i < n; ++i) stream.point((p0 = segment[i])[0], p0[1]); - stream.lineEnd(); - return; - } +var pointEqual = function(a, b) { + return abs(a[0] - b[0]) < epsilon$4 && abs(a[1] - b[1]) < epsilon$4; +} - subject.push(x = new Intersection(p0, segment, null, true)); - clip.push(x.o = new Intersection(p0, null, x, false)); - subject.push(x = new Intersection(p1, segment, null, false)); - clip.push(x.o = new Intersection(p1, null, x, true)); - }); +function Intersection(point, points, other, entry) { + this.x = point; + this.z = points; + this.o = other; // another intersection + this.e = entry; // is an entry? + this.v = false; // visited + this.n = this.p = null; // next & previous +} - if (!subject.length) return; +// A generalized polygon clipping algorithm: given a polygon that has been cut +// into its visible line segments, and rejoins the segments by interpolating +// along the clip edge. +var clipPolygon = function(segments, compareIntersection, startInside, interpolate, stream) { + var subject = [], + clip = [], + i, + n; - clip.sort(compareIntersection); - link$1(subject); - link$1(clip); + segments.forEach(function(segment) { + if ((n = segment.length - 1) <= 0) return; + var n, p0 = segment[0], p1 = segment[n], x; - for (i = 0, n = clip.length; i < n; ++i) { - clip[i].e = startInside = !startInside; + // If the first and last points of a segment are coincident, then treat as a + // closed ring. TODO if all rings are closed, then the winding order of the + // exterior ring should be checked. + if (pointEqual(p0, p1)) { + stream.lineStart(); + for (i = 0; i < n; ++i) stream.point((p0 = segment[i])[0], p0[1]); + stream.lineEnd(); + return; } - var start = subject[0], - points, - point; + subject.push(x = new Intersection(p0, segment, null, true)); + clip.push(x.o = new Intersection(p0, null, x, false)); + subject.push(x = new Intersection(p1, segment, null, false)); + clip.push(x.o = new Intersection(p1, null, x, true)); + }); - while (1) { - // Find first unvisited intersection. - var current = start, - isSubject = true; - while (current.v) if ((current = current.n) === start) return; - points = current.z; - stream.lineStart(); - do { - current.v = current.o.v = true; - if (current.e) { - if (isSubject) { - for (i = 0, n = points.length; i < n; ++i) stream.point((point = points[i])[0], point[1]); - } else { - interpolate(current.x, current.n.x, 1, stream); - } - current = current.n; + if (!subject.length) return; + + clip.sort(compareIntersection); + link$1(subject); + link$1(clip); + + for (i = 0, n = clip.length; i < n; ++i) { + clip[i].e = startInside = !startInside; + } + + var start = subject[0], + points, + point; + + while (1) { + // Find first unvisited intersection. + var current = start, + isSubject = true; + while (current.v) if ((current = current.n) === start) return; + points = current.z; + stream.lineStart(); + do { + current.v = current.o.v = true; + if (current.e) { + if (isSubject) { + for (i = 0, n = points.length; i < n; ++i) stream.point((point = points[i])[0], point[1]); } else { - if (isSubject) { - points = current.p.z; - for (i = points.length - 1; i >= 0; --i) stream.point((point = points[i])[0], point[1]); - } else { - interpolate(current.x, current.p.x, -1, stream); - } - current = current.p; + interpolate(current.x, current.n.x, 1, stream); } - current = current.o; - points = current.z; - isSubject = !isSubject; - } while (!current.v); - stream.lineEnd(); - } + current = current.n; + } else { + if (isSubject) { + points = current.p.z; + for (i = points.length - 1; i >= 0; --i) stream.point((point = points[i])[0], point[1]); + } else { + interpolate(current.x, current.p.x, -1, stream); + } + current = current.p; + } + current = current.o; + points = current.z; + isSubject = !isSubject; + } while (!current.v); + stream.lineEnd(); } +} - function link$1(array) { - if (!(n = array.length)) return; - var n, - i = 0, - a = array[0], - b; - while (++i < n) { - a.n = b = array[i]; - b.p = a; - a = b; - } - a.n = b = array[0]; +function link$1(array) { + if (!(n = array.length)) return; + var n, + i = 0, + a = array[0], + b; + while (++i < n) { + a.n = b = array[i]; b.p = a; + a = b; } + a.n = b = array[0]; + b.p = a; +} - var clipMax = 1e9; - var clipMin = -clipMax; - // TODO Use d3-polygon’s polygonContains here for the ring check? - // TODO Eliminate duplicate buffering in clipBuffer and polygon.push? +var clipMax = 1e9; +var clipMin = -clipMax; - function clipExtent(x0, y0, x1, y1) { +// TODO Use d3-polygon’s polygonContains here for the ring check? +// TODO Eliminate duplicate buffering in clipBuffer and polygon.push? - function visible(x, y) { - return x0 <= x && x <= x1 && y0 <= y && y <= y1; - } +function clipExtent(x0, y0, x1, y1) { - function interpolate(from, to, direction, stream) { - var a = 0, a1 = 0; - if (from == null - || (a = corner(from, direction)) !== (a1 = corner(to, direction)) - || comparePoint(from, to) < 0 ^ direction > 0) { - do stream.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0); - while ((a = (a + direction + 4) % 4) !== a1); - } else { - stream.point(to[0], to[1]); - } - } + function visible(x, y) { + return x0 <= x && x <= x1 && y0 <= y && y <= y1; + } - function corner(p, direction) { - return abs(p[0] - x0) < epsilon$4 ? direction > 0 ? 0 : 3 - : abs(p[0] - x1) < epsilon$4 ? direction > 0 ? 2 : 1 - : abs(p[1] - y0) < epsilon$4 ? direction > 0 ? 1 : 0 - : direction > 0 ? 3 : 2; // abs(p[1] - y1) < epsilon + function interpolate(from, to, direction, stream) { + var a = 0, a1 = 0; + if (from == null + || (a = corner(from, direction)) !== (a1 = corner(to, direction)) + || comparePoint(from, to) < 0 ^ direction > 0) { + do stream.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0); + while ((a = (a + direction + 4) % 4) !== a1); + } else { + stream.point(to[0], to[1]); } + } - function compareIntersection(a, b) { - return comparePoint(a.x, b.x); - } + function corner(p, direction) { + return abs(p[0] - x0) < epsilon$4 ? direction > 0 ? 0 : 3 + : abs(p[0] - x1) < epsilon$4 ? direction > 0 ? 2 : 1 + : abs(p[1] - y0) < epsilon$4 ? direction > 0 ? 1 : 0 + : direction > 0 ? 3 : 2; // abs(p[1] - y1) < epsilon + } - function comparePoint(a, b) { - var ca = corner(a, 1), - cb = corner(b, 1); - return ca !== cb ? ca - cb - : ca === 0 ? b[1] - a[1] - : ca === 1 ? a[0] - b[0] - : ca === 2 ? a[1] - b[1] - : b[0] - a[0]; - } + function compareIntersection(a, b) { + return comparePoint(a.x, b.x); + } - return function(stream) { - var activeStream = stream, - bufferStream = clipBuffer(), - segments, - polygon, - ring, - x__, y__, v__, // first point - x_, y_, v_, // previous point - first, - clean; + function comparePoint(a, b) { + var ca = corner(a, 1), + cb = corner(b, 1); + return ca !== cb ? ca - cb + : ca === 0 ? b[1] - a[1] + : ca === 1 ? a[0] - b[0] + : ca === 2 ? a[1] - b[1] + : b[0] - a[0]; + } - var clipStream = { - point: point, - lineStart: lineStart, - lineEnd: lineEnd, - polygonStart: polygonStart, - polygonEnd: polygonEnd - }; + return function(stream) { + var activeStream = stream, + bufferStream = clipBuffer(), + segments, + polygon, + ring, + x__, y__, v__, // first point + x_, y_, v_, // previous point + first, + clean; - function point(x, y) { - if (visible(x, y)) activeStream.point(x, y); - } + var clipStream = { + point: point, + lineStart: lineStart, + lineEnd: lineEnd, + polygonStart: polygonStart, + polygonEnd: polygonEnd + }; - function polygonInside() { - var winding = 0; + function point(x, y) { + if (visible(x, y)) activeStream.point(x, y); + } - for (var i = 0, n = polygon.length; i < n; ++i) { - for (var ring = polygon[i], j = 1, m = ring.length, point = ring[0], a0, a1, b0 = point[0], b1 = point[1]; j < m; ++j) { - a0 = b0, a1 = b1, point = ring[j], b0 = point[0], b1 = point[1]; - if (a1 <= y1) { if (b1 > y1 && (b0 - a0) * (y1 - a1) > (b1 - a1) * (x0 - a0)) ++winding; } - else { if (b1 <= y1 && (b0 - a0) * (y1 - a1) < (b1 - a1) * (x0 - a0)) --winding; } - } - } + function polygonInside() { + var winding = 0; - return winding; + for (var i = 0, n = polygon.length; i < n; ++i) { + for (var ring = polygon[i], j = 1, m = ring.length, point = ring[0], a0, a1, b0 = point[0], b1 = point[1]; j < m; ++j) { + a0 = b0, a1 = b1, point = ring[j], b0 = point[0], b1 = point[1]; + if (a1 <= y1) { if (b1 > y1 && (b0 - a0) * (y1 - a1) > (b1 - a1) * (x0 - a0)) ++winding; } + else { if (b1 <= y1 && (b0 - a0) * (y1 - a1) < (b1 - a1) * (x0 - a0)) --winding; } + } } - // Buffer geometry within a polygon and then clip it en masse. - function polygonStart() { - activeStream = bufferStream, segments = [], polygon = [], clean = true; - } + return winding; + } - function polygonEnd() { - var startInside = polygonInside(), - cleanInside = clean && startInside, - visible = (segments = merge(segments)).length; - if (cleanInside || visible) { - stream.polygonStart(); - if (cleanInside) { - stream.lineStart(); - interpolate(null, null, 1, stream); - stream.lineEnd(); - } - if (visible) { - clipPolygon(segments, compareIntersection, startInside, interpolate, stream); - } - stream.polygonEnd(); + // Buffer geometry within a polygon and then clip it en masse. + function polygonStart() { + activeStream = bufferStream, segments = [], polygon = [], clean = true; + } + + function polygonEnd() { + var startInside = polygonInside(), + cleanInside = clean && startInside, + visible = (segments = merge(segments)).length; + if (cleanInside || visible) { + stream.polygonStart(); + if (cleanInside) { + stream.lineStart(); + interpolate(null, null, 1, stream); + stream.lineEnd(); } - activeStream = stream, segments = polygon = ring = null; + if (visible) { + clipPolygon(segments, compareIntersection, startInside, interpolate, stream); + } + stream.polygonEnd(); } + activeStream = stream, segments = polygon = ring = null; + } - function lineStart() { - clipStream.point = linePoint; - if (polygon) polygon.push(ring = []); - first = true; - v_ = false; - x_ = y_ = NaN; - } + function lineStart() { + clipStream.point = linePoint; + if (polygon) polygon.push(ring = []); + first = true; + v_ = false; + x_ = y_ = NaN; + } - // TODO rather than special-case polygons, simply handle them separately. - // Ideally, coincident intersection points should be jittered to avoid - // clipping issues. - function lineEnd() { - if (segments) { - linePoint(x__, y__); - if (v__ && v_) bufferStream.rejoin(); - segments.push(bufferStream.result()); - } - clipStream.point = point; - if (v_) activeStream.lineEnd(); + // TODO rather than special-case polygons, simply handle them separately. + // Ideally, coincident intersection points should be jittered to avoid + // clipping issues. + function lineEnd() { + if (segments) { + linePoint(x__, y__); + if (v__ && v_) bufferStream.rejoin(); + segments.push(bufferStream.result()); } + clipStream.point = point; + if (v_) activeStream.lineEnd(); + } - function linePoint(x, y) { - var v = visible(x, y); - if (polygon) ring.push([x, y]); - if (first) { - x__ = x, y__ = y, v__ = v; - first = false; - if (v) { + function linePoint(x, y) { + var v = visible(x, y); + if (polygon) ring.push([x, y]); + if (first) { + x__ = x, y__ = y, v__ = v; + first = false; + if (v) { + activeStream.lineStart(); + activeStream.point(x, y); + } + } else { + if (v && v_) activeStream.point(x, y); + else { + var a = [x_ = Math.max(clipMin, Math.min(clipMax, x_)), y_ = Math.max(clipMin, Math.min(clipMax, y_))], + b = [x = Math.max(clipMin, Math.min(clipMax, x)), y = Math.max(clipMin, Math.min(clipMax, y))]; + if (clipLine(a, b, x0, y0, x1, y1)) { + if (!v_) { + activeStream.lineStart(); + activeStream.point(a[0], a[1]); + } + activeStream.point(b[0], b[1]); + if (!v) activeStream.lineEnd(); + clean = false; + } else if (v) { activeStream.lineStart(); activeStream.point(x, y); + clean = false; } - } else { - if (v && v_) activeStream.point(x, y); - else { - var a = [x_ = Math.max(clipMin, Math.min(clipMax, x_)), y_ = Math.max(clipMin, Math.min(clipMax, y_))], - b = [x = Math.max(clipMin, Math.min(clipMax, x)), y = Math.max(clipMin, Math.min(clipMax, y))]; - if (clipLine(a, b, x0, y0, x1, y1)) { - if (!v_) { - activeStream.lineStart(); - activeStream.point(a[0], a[1]); - } - activeStream.point(b[0], b[1]); - if (!v) activeStream.lineEnd(); - clean = false; - } else if (v) { - activeStream.lineStart(); - activeStream.point(x, y); - clean = false; - } - } } - x_ = x, y_ = y, v_ = v; } + x_ = x, y_ = y, v_ = v; + } - return clipStream; - }; - } + return clipStream; + }; +} - function extent$1() { - var x0 = 0, - y0 = 0, - x1 = 960, - y1 = 500, - cache, - cacheStream, - clip; +var extent$1 = function() { + var x0 = 0, + y0 = 0, + x1 = 960, + y1 = 500, + cache, + cacheStream, + clip; - return clip = { - stream: function(stream) { - return cache && cacheStream === stream ? cache : cache = clipExtent(x0, y0, x1, y1)(cacheStream = stream); - }, - extent: function(_) { - return arguments.length ? (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1], cache = cacheStream = null, clip) : [[x0, y0], [x1, y1]]; - } - }; - } - - var lengthSum = adder(); -var lambda0$2; -var sinPhi0$1; -var cosPhi0$1; - var lengthStream = { - sphere: noop$2, - point: noop$2, - lineStart: lengthLineStart, - lineEnd: noop$2, - polygonStart: noop$2, - polygonEnd: noop$2 + return clip = { + stream: function(stream) { + return cache && cacheStream === stream ? cache : cache = clipExtent(x0, y0, x1, y1)(cacheStream = stream); + }, + extent: function(_) { + return arguments.length ? (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1], cache = cacheStream = null, clip) : [[x0, y0], [x1, y1]]; + } }; +} - function lengthLineStart() { - lengthStream.point = lengthPointFirst; - lengthStream.lineEnd = lengthLineEnd; - } +var lengthSum = adder(); +var lambda0$2; +var sinPhi0$1; +var cosPhi0$1; - function lengthLineEnd() { - lengthStream.point = lengthStream.lineEnd = noop$2; - } +var lengthStream = { + sphere: noop$2, + point: noop$2, + lineStart: lengthLineStart, + lineEnd: noop$2, + polygonStart: noop$2, + polygonEnd: noop$2 +}; - function lengthPointFirst(lambda, phi) { - lambda *= radians, phi *= radians; - lambda0$2 = lambda, sinPhi0$1 = sin$1(phi), cosPhi0$1 = cos$1(phi); - lengthStream.point = lengthPoint; - } +function lengthLineStart() { + lengthStream.point = lengthPointFirst; + lengthStream.lineEnd = lengthLineEnd; +} - function lengthPoint(lambda, phi) { - lambda *= radians, phi *= radians; - var sinPhi = sin$1(phi), - cosPhi = cos$1(phi), - delta = abs(lambda - lambda0$2), - cosDelta = cos$1(delta), - sinDelta = sin$1(delta), - x = cosPhi * sinDelta, - y = cosPhi0$1 * sinPhi - sinPhi0$1 * cosPhi * cosDelta, - z = sinPhi0$1 * sinPhi + cosPhi0$1 * cosPhi * cosDelta; - lengthSum.add(atan2(sqrt$1(x * x + y * y), z)); - lambda0$2 = lambda, sinPhi0$1 = sinPhi, cosPhi0$1 = cosPhi; - } +function lengthLineEnd() { + lengthStream.point = lengthStream.lineEnd = noop$2; +} - function length$2(object) { - lengthSum.reset(); - geoStream(object, lengthStream); - return +lengthSum; - } +function lengthPointFirst(lambda, phi) { + lambda *= radians, phi *= radians; + lambda0$2 = lambda, sinPhi0$1 = sin$1(phi), cosPhi0$1 = cos$1(phi); + lengthStream.point = lengthPoint; +} - var coordinates = [null, null]; -var object$1 = {type: "LineString", coordinates: coordinates}; - function distance(a, b) { - coordinates[0] = a; - coordinates[1] = b; - return length$2(object$1); - } +function lengthPoint(lambda, phi) { + lambda *= radians, phi *= radians; + var sinPhi = sin$1(phi), + cosPhi = cos$1(phi), + delta = abs(lambda - lambda0$2), + cosDelta = cos$1(delta), + sinDelta = sin$1(delta), + x = cosPhi * sinDelta, + y = cosPhi0$1 * sinPhi - sinPhi0$1 * cosPhi * cosDelta, + z = sinPhi0$1 * sinPhi + cosPhi0$1 * cosPhi * cosDelta; + lengthSum.add(atan2(sqrt$1(x * x + y * y), z)); + lambda0$2 = lambda, sinPhi0$1 = sinPhi, cosPhi0$1 = cosPhi; +} - function graticuleX(y0, y1, dy) { - var y = range(y0, y1 - epsilon$4, dy).concat(y1); - return function(x) { return y.map(function(y) { return [x, y]; }); }; - } +var length$2 = function(object) { + lengthSum.reset(); + geoStream(object, lengthStream); + return +lengthSum; +} - function graticuleY(x0, x1, dx) { - var x = range(x0, x1 - epsilon$4, dx).concat(x1); - return function(y) { return x.map(function(x) { return [x, y]; }); }; - } +var coordinates = [null, null]; +var object$1 = {type: "LineString", coordinates: coordinates}; - function graticule() { - var x1, x0, X1, X0, - y1, y0, Y1, Y0, - dx = 10, dy = dx, DX = 90, DY = 360, - x, y, X, Y, - precision = 2.5; +var distance = function(a, b) { + coordinates[0] = a; + coordinates[1] = b; + return length$2(object$1); +} - function graticule() { - return {type: "MultiLineString", coordinates: lines()}; - } +function graticuleX(y0, y1, dy) { + var y = range(y0, y1 - epsilon$4, dy).concat(y1); + return function(x) { return y.map(function(y) { return [x, y]; }); }; +} - function lines() { - return range(ceil(X0 / DX) * DX, X1, DX).map(X) - .concat(range(ceil(Y0 / DY) * DY, Y1, DY).map(Y)) - .concat(range(ceil(x0 / dx) * dx, x1, dx).filter(function(x) { return abs(x % DX) > epsilon$4; }).map(x)) - .concat(range(ceil(y0 / dy) * dy, y1, dy).filter(function(y) { return abs(y % DY) > epsilon$4; }).map(y)); - } +function graticuleY(x0, x1, dx) { + var x = range(x0, x1 - epsilon$4, dx).concat(x1); + return function(y) { return x.map(function(x) { return [x, y]; }); }; +} - graticule.lines = function() { - return lines().map(function(coordinates) { return {type: "LineString", coordinates: coordinates}; }); - }; +var graticule = function() { + var x1, x0, X1, X0, + y1, y0, Y1, Y0, + dx = 10, dy = dx, DX = 90, DY = 360, + x, y, X, Y, + precision = 2.5; - graticule.outline = function() { - return { - type: "Polygon", - coordinates: [ - X(X0).concat( - Y(Y1).slice(1), - X(X1).reverse().slice(1), - Y(Y0).reverse().slice(1)) - ] - }; - }; + function graticule() { + return {type: "MultiLineString", coordinates: lines()}; + } - graticule.extent = function(_) { - if (!arguments.length) return graticule.extentMinor(); - return graticule.extentMajor(_).extentMinor(_); - }; + function lines() { + return range(ceil(X0 / DX) * DX, X1, DX).map(X) + .concat(range(ceil(Y0 / DY) * DY, Y1, DY).map(Y)) + .concat(range(ceil(x0 / dx) * dx, x1, dx).filter(function(x) { return abs(x % DX) > epsilon$4; }).map(x)) + .concat(range(ceil(y0 / dy) * dy, y1, dy).filter(function(y) { return abs(y % DY) > epsilon$4; }).map(y)); + } - graticule.extentMajor = function(_) { - if (!arguments.length) return [[X0, Y0], [X1, Y1]]; - X0 = +_[0][0], X1 = +_[1][0]; - Y0 = +_[0][1], Y1 = +_[1][1]; - if (X0 > X1) _ = X0, X0 = X1, X1 = _; - if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _; - return graticule.precision(precision); - }; + graticule.lines = function() { + return lines().map(function(coordinates) { return {type: "LineString", coordinates: coordinates}; }); + }; - graticule.extentMinor = function(_) { - if (!arguments.length) return [[x0, y0], [x1, y1]]; - x0 = +_[0][0], x1 = +_[1][0]; - y0 = +_[0][1], y1 = +_[1][1]; - if (x0 > x1) _ = x0, x0 = x1, x1 = _; - if (y0 > y1) _ = y0, y0 = y1, y1 = _; - return graticule.precision(precision); + graticule.outline = function() { + return { + type: "Polygon", + coordinates: [ + X(X0).concat( + Y(Y1).slice(1), + X(X1).reverse().slice(1), + Y(Y0).reverse().slice(1)) + ] }; + }; - graticule.step = function(_) { - if (!arguments.length) return graticule.stepMinor(); - return graticule.stepMajor(_).stepMinor(_); - }; + graticule.extent = function(_) { + if (!arguments.length) return graticule.extentMinor(); + return graticule.extentMajor(_).extentMinor(_); + }; - graticule.stepMajor = function(_) { - if (!arguments.length) return [DX, DY]; - DX = +_[0], DY = +_[1]; - return graticule; - }; + graticule.extentMajor = function(_) { + if (!arguments.length) return [[X0, Y0], [X1, Y1]]; + X0 = +_[0][0], X1 = +_[1][0]; + Y0 = +_[0][1], Y1 = +_[1][1]; + if (X0 > X1) _ = X0, X0 = X1, X1 = _; + if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _; + return graticule.precision(precision); + }; - graticule.stepMinor = function(_) { - if (!arguments.length) return [dx, dy]; - dx = +_[0], dy = +_[1]; - return graticule; - }; + graticule.extentMinor = function(_) { + if (!arguments.length) return [[x0, y0], [x1, y1]]; + x0 = +_[0][0], x1 = +_[1][0]; + y0 = +_[0][1], y1 = +_[1][1]; + if (x0 > x1) _ = x0, x0 = x1, x1 = _; + if (y0 > y1) _ = y0, y0 = y1, y1 = _; + return graticule.precision(precision); + }; - graticule.precision = function(_) { - if (!arguments.length) return precision; - precision = +_; - x = graticuleX(y0, y1, 90); - y = graticuleY(x0, x1, precision); - X = graticuleX(Y0, Y1, 90); - Y = graticuleY(X0, X1, precision); - return graticule; - }; + graticule.step = function(_) { + if (!arguments.length) return graticule.stepMinor(); + return graticule.stepMajor(_).stepMinor(_); + }; - return graticule - .extentMajor([[-180, -90 + epsilon$4], [180, 90 - epsilon$4]]) - .extentMinor([[-180, -80 - epsilon$4], [180, 80 + epsilon$4]]); - } + graticule.stepMajor = function(_) { + if (!arguments.length) return [DX, DY]; + DX = +_[0], DY = +_[1]; + return graticule; + }; - function interpolate$2(a, b) { - var x0 = a[0] * radians, - y0 = a[1] * radians, - x1 = b[0] * radians, - y1 = b[1] * radians, - cy0 = cos$1(y0), - sy0 = sin$1(y0), - cy1 = cos$1(y1), - sy1 = sin$1(y1), - kx0 = cy0 * cos$1(x0), - ky0 = cy0 * sin$1(x0), - kx1 = cy1 * cos$1(x1), - ky1 = cy1 * sin$1(x1), - d = 2 * asin$1(sqrt$1(haversin(y1 - y0) + cy0 * cy1 * haversin(x1 - x0))), - k = sin$1(d); + graticule.stepMinor = function(_) { + if (!arguments.length) return [dx, dy]; + dx = +_[0], dy = +_[1]; + return graticule; + }; - var interpolate = d ? function(t) { - var B = sin$1(t *= d) / k, - A = sin$1(d - t) / k, - x = A * kx0 + B * kx1, - y = A * ky0 + B * ky1, - z = A * sy0 + B * sy1; - return [ - atan2(y, x) * degrees$1, - atan2(z, sqrt$1(x * x + y * y)) * degrees$1 - ]; - } : function() { - return [x0 * degrees$1, y0 * degrees$1]; - }; + graticule.precision = function(_) { + if (!arguments.length) return precision; + precision = +_; + x = graticuleX(y0, y1, 90); + y = graticuleY(x0, x1, precision); + X = graticuleX(Y0, Y1, 90); + Y = graticuleY(X0, X1, precision); + return graticule; + }; - interpolate.distance = d; + return graticule + .extentMajor([[-180, -90 + epsilon$4], [180, 90 - epsilon$4]]) + .extentMinor([[-180, -80 - epsilon$4], [180, 80 + epsilon$4]]); +} - return interpolate; - } +var interpolate$2 = function(a, b) { + var x0 = a[0] * radians, + y0 = a[1] * radians, + x1 = b[0] * radians, + y1 = b[1] * radians, + cy0 = cos$1(y0), + sy0 = sin$1(y0), + cy1 = cos$1(y1), + sy1 = sin$1(y1), + kx0 = cy0 * cos$1(x0), + ky0 = cy0 * sin$1(x0), + kx1 = cy1 * cos$1(x1), + ky1 = cy1 * sin$1(x1), + d = 2 * asin$1(sqrt$1(haversin(y1 - y0) + cy0 * cy1 * haversin(x1 - x0))), + k = sin$1(d); - function identity$7(x) { - return x; - } - -var areaSum$1 = adder(); -var areaRingSum$1 = adder(); - var x00; - var y00; -var x0$1; -var y0$1; - var areaStream$1 = { - point: noop$2, - lineStart: noop$2, - lineEnd: noop$2, - polygonStart: function() { - areaStream$1.lineStart = areaRingStart$1; - areaStream$1.lineEnd = areaRingEnd$1; - }, - polygonEnd: function() { - areaStream$1.lineStart = areaStream$1.lineEnd = areaStream$1.point = noop$2; - areaSum$1.add(abs(areaRingSum$1)); - areaRingSum$1.reset(); - }, - result: function() { - var area = areaSum$1 / 2; - areaSum$1.reset(); - return area; - } + var interpolate = d ? function(t) { + var B = sin$1(t *= d) / k, + A = sin$1(d - t) / k, + x = A * kx0 + B * kx1, + y = A * ky0 + B * ky1, + z = A * sy0 + B * sy1; + return [ + atan2(y, x) * degrees$1, + atan2(z, sqrt$1(x * x + y * y)) * degrees$1 + ]; + } : function() { + return [x0 * degrees$1, y0 * degrees$1]; }; - function areaRingStart$1() { - areaStream$1.point = areaPointFirst$1; - } + interpolate.distance = d; - function areaPointFirst$1(x, y) { - areaStream$1.point = areaPoint$1; - x00 = x0$1 = x, y00 = y0$1 = y; - } + return interpolate; +} - function areaPoint$1(x, y) { - areaRingSum$1.add(y0$1 * x - x0$1 * y); - x0$1 = x, y0$1 = y; - } +var identity$7 = function(x) { + return x; +} - function areaRingEnd$1() { - areaPoint$1(x00, y00); - } +var areaSum$1 = adder(); +var areaRingSum$1 = adder(); +var x00; +var y00; +var x0$1; +var y0$1; -var x0$2 = Infinity; -var y0$2 = x0$2; - var x1 = -x0$2; - var y1 = x1; - var boundsStream$1 = { - point: boundsPoint$1, - lineStart: noop$2, - lineEnd: noop$2, - polygonStart: noop$2, - polygonEnd: noop$2, - result: function() { - var bounds = [[x0$2, y0$2], [x1, y1]]; - x1 = y1 = -(y0$2 = x0$2 = Infinity); - return bounds; - } - }; - - function boundsPoint$1(x, y) { - if (x < x0$2) x0$2 = x; - if (x > x1) x1 = x; - if (y < y0$2) y0$2 = y; - if (y > y1) y1 = y; +var areaStream$1 = { + point: noop$2, + lineStart: noop$2, + lineEnd: noop$2, + polygonStart: function() { + areaStream$1.lineStart = areaRingStart$1; + areaStream$1.lineEnd = areaRingEnd$1; + }, + polygonEnd: function() { + areaStream$1.lineStart = areaStream$1.lineEnd = areaStream$1.point = noop$2; + areaSum$1.add(abs(areaRingSum$1)); + areaRingSum$1.reset(); + }, + result: function() { + var area = areaSum$1 / 2; + areaSum$1.reset(); + return area; } +}; -var X0$1 = 0; -var Y0$1 = 0; -var Z0$1 = 0; -var X1$1 = 0; -var Y1$1 = 0; -var Z1$1 = 0; -var X2$1 = 0; -var Y2$1 = 0; -var Z2$1 = 0; -var x00$1; -var y00$1; -var x0$3; -var y0$3; - var centroidStream$1 = { - point: centroidPoint$1, - lineStart: centroidLineStart$1, - lineEnd: centroidLineEnd$1, - polygonStart: function() { - centroidStream$1.lineStart = centroidRingStart$1; - centroidStream$1.lineEnd = centroidRingEnd$1; - }, - polygonEnd: function() { - centroidStream$1.point = centroidPoint$1; - centroidStream$1.lineStart = centroidLineStart$1; - centroidStream$1.lineEnd = centroidLineEnd$1; - }, - result: function() { - var centroid = Z2$1 ? [X2$1 / Z2$1, Y2$1 / Z2$1] - : Z1$1 ? [X1$1 / Z1$1, Y1$1 / Z1$1] - : Z0$1 ? [X0$1 / Z0$1, Y0$1 / Z0$1] - : [NaN, NaN]; - X0$1 = Y0$1 = Z0$1 = - X1$1 = Y1$1 = Z1$1 = - X2$1 = Y2$1 = Z2$1 = 0; - return centroid; - } - }; +function areaRingStart$1() { + areaStream$1.point = areaPointFirst$1; +} - function centroidPoint$1(x, y) { - X0$1 += x; - Y0$1 += y; - ++Z0$1; - } +function areaPointFirst$1(x, y) { + areaStream$1.point = areaPoint$1; + x00 = x0$1 = x, y00 = y0$1 = y; +} - function centroidLineStart$1() { - centroidStream$1.point = centroidPointFirstLine; - } +function areaPoint$1(x, y) { + areaRingSum$1.add(y0$1 * x - x0$1 * y); + x0$1 = x, y0$1 = y; +} - function centroidPointFirstLine(x, y) { - centroidStream$1.point = centroidPointLine; - centroidPoint$1(x0$3 = x, y0$3 = y); - } +function areaRingEnd$1() { + areaPoint$1(x00, y00); +} - function centroidPointLine(x, y) { - var dx = x - x0$3, dy = y - y0$3, z = sqrt$1(dx * dx + dy * dy); - X1$1 += z * (x0$3 + x) / 2; - Y1$1 += z * (y0$3 + y) / 2; - Z1$1 += z; - centroidPoint$1(x0$3 = x, y0$3 = y); - } +var x0$2 = Infinity; +var y0$2 = x0$2; +var x1 = -x0$2; +var y1 = x1; - function centroidLineEnd$1() { - centroidStream$1.point = centroidPoint$1; +var boundsStream$1 = { + point: boundsPoint$1, + lineStart: noop$2, + lineEnd: noop$2, + polygonStart: noop$2, + polygonEnd: noop$2, + result: function() { + var bounds = [[x0$2, y0$2], [x1, y1]]; + x1 = y1 = -(y0$2 = x0$2 = Infinity); + return bounds; } +}; - function centroidRingStart$1() { - centroidStream$1.point = centroidPointFirstRing; - } +function boundsPoint$1(x, y) { + if (x < x0$2) x0$2 = x; + if (x > x1) x1 = x; + if (y < y0$2) y0$2 = y; + if (y > y1) y1 = y; +} - function centroidRingEnd$1() { - centroidPointRing(x00$1, y00$1); - } +// TODO Enforce positive area for exterior, negative area for interior? - function centroidPointFirstRing(x, y) { - centroidStream$1.point = centroidPointRing; - centroidPoint$1(x00$1 = x0$3 = x, y00$1 = y0$3 = y); - } +var X0$1 = 0; +var Y0$1 = 0; +var Z0$1 = 0; +var X1$1 = 0; +var Y1$1 = 0; +var Z1$1 = 0; +var X2$1 = 0; +var Y2$1 = 0; +var Z2$1 = 0; +var x00$1; +var y00$1; +var x0$3; +var y0$3; - function centroidPointRing(x, y) { - var dx = x - x0$3, - dy = y - y0$3, - z = sqrt$1(dx * dx + dy * dy); - - X1$1 += z * (x0$3 + x) / 2; - Y1$1 += z * (y0$3 + y) / 2; - Z1$1 += z; - - z = y0$3 * x - x0$3 * y; - X2$1 += z * (x0$3 + x); - Y2$1 += z * (y0$3 + y); - Z2$1 += z * 3; - centroidPoint$1(x0$3 = x, y0$3 = y); +var centroidStream$1 = { + point: centroidPoint$1, + lineStart: centroidLineStart$1, + lineEnd: centroidLineEnd$1, + polygonStart: function() { + centroidStream$1.lineStart = centroidRingStart$1; + centroidStream$1.lineEnd = centroidRingEnd$1; + }, + polygonEnd: function() { + centroidStream$1.point = centroidPoint$1; + centroidStream$1.lineStart = centroidLineStart$1; + centroidStream$1.lineEnd = centroidLineEnd$1; + }, + result: function() { + var centroid = Z2$1 ? [X2$1 / Z2$1, Y2$1 / Z2$1] + : Z1$1 ? [X1$1 / Z1$1, Y1$1 / Z1$1] + : Z0$1 ? [X0$1 / Z0$1, Y0$1 / Z0$1] + : [NaN, NaN]; + X0$1 = Y0$1 = Z0$1 = + X1$1 = Y1$1 = Z1$1 = + X2$1 = Y2$1 = Z2$1 = 0; + return centroid; } +}; - function PathContext(context) { - var pointRadius = 4.5; +function centroidPoint$1(x, y) { + X0$1 += x; + Y0$1 += y; + ++Z0$1; +} - var stream = { - point: point, +function centroidLineStart$1() { + centroidStream$1.point = centroidPointFirstLine; +} - // While inside a line, override point to moveTo then lineTo. - lineStart: function() { stream.point = pointLineStart; }, - lineEnd: lineEnd, +function centroidPointFirstLine(x, y) { + centroidStream$1.point = centroidPointLine; + centroidPoint$1(x0$3 = x, y0$3 = y); +} - // While inside a polygon, override lineEnd to closePath. - polygonStart: function() { stream.lineEnd = lineEndPolygon; }, - polygonEnd: function() { stream.lineEnd = lineEnd; stream.point = point; }, +function centroidPointLine(x, y) { + var dx = x - x0$3, dy = y - y0$3, z = sqrt$1(dx * dx + dy * dy); + X1$1 += z * (x0$3 + x) / 2; + Y1$1 += z * (y0$3 + y) / 2; + Z1$1 += z; + centroidPoint$1(x0$3 = x, y0$3 = y); +} - pointRadius: function(_) { - pointRadius = _; - return stream; - }, +function centroidLineEnd$1() { + centroidStream$1.point = centroidPoint$1; +} - result: noop$2 - }; +function centroidRingStart$1() { + centroidStream$1.point = centroidPointFirstRing; +} - function point(x, y) { - context.moveTo(x + pointRadius, y); - context.arc(x, y, pointRadius, 0, tau$4); - } +function centroidRingEnd$1() { + centroidPointRing(x00$1, y00$1); +} - function pointLineStart(x, y) { - context.moveTo(x, y); - stream.point = pointLine; - } +function centroidPointFirstRing(x, y) { + centroidStream$1.point = centroidPointRing; + centroidPoint$1(x00$1 = x0$3 = x, y00$1 = y0$3 = y); +} - function pointLine(x, y) { - context.lineTo(x, y); - } +function centroidPointRing(x, y) { + var dx = x - x0$3, + dy = y - y0$3, + z = sqrt$1(dx * dx + dy * dy); - function lineEnd() { - stream.point = point; - } + X1$1 += z * (x0$3 + x) / 2; + Y1$1 += z * (y0$3 + y) / 2; + Z1$1 += z; - function lineEndPolygon() { - context.closePath(); - } + z = y0$3 * x - x0$3 * y; + X2$1 += z * (x0$3 + x); + Y2$1 += z * (y0$3 + y); + Z2$1 += z * 3; + centroidPoint$1(x0$3 = x, y0$3 = y); +} - return stream; - } +function PathContext(context) { + this._context = context; +} - function PathString() { - var pointCircle = circle$2(4.5), - string = []; - - var stream = { - point: point, - lineStart: lineStart, - lineEnd: lineEnd, - polygonStart: function() { - stream.lineEnd = lineEndPolygon; - }, - polygonEnd: function() { - stream.lineEnd = lineEnd; - stream.point = point; - }, - pointRadius: function(_) { - pointCircle = circle$2(_); - return stream; - }, - result: function() { - if (string.length) { - var result = string.join(""); - string = []; - return result; - } +PathContext.prototype = { + _radius: 4.5, + pointRadius: function(_) { + return this._radius = _, this; + }, + polygonStart: function() { + this._line = 0; + }, + polygonEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._point = 0; + }, + lineEnd: function() { + if (this._line === 0) this._context.closePath(); + this._point = NaN; + }, + point: function(x, y) { + switch (this._point) { + case 0: { + this._context.moveTo(x, y); + this._point = 1; + break; } - }; - - function point(x, y) { - string.push("M", x, ",", y, pointCircle); + case 1: { + this._context.lineTo(x, y); + break; + } + default: { + this._context.moveTo(x + this._radius, y); + this._context.arc(x, y, this._radius, 0, tau$4); + break; + } } + }, + result: noop$2 +}; - function pointLineStart(x, y) { - string.push("M", x, ",", y); - stream.point = pointLine; - } +function PathString() { + this._string = []; +} - function pointLine(x, y) { - string.push("L", x, ",", y); +PathString.prototype = { + _circle: circle$2(4.5), + pointRadius: function(_) { + return this._circle = circle$2(_), this; + }, + polygonStart: function() { + this._line = 0; + }, + polygonEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._point = 0; + }, + lineEnd: function() { + if (this._line === 0) this._string.push("Z"); + this._point = NaN; + }, + point: function(x, y) { + switch (this._point) { + case 0: { + this._string.push("M", x, ",", y); + this._point = 1; + break; + } + case 1: { + this._string.push("L", x, ",", y); + break; + } + default: { + this._string.push("M", x, ",", y, this._circle); + break; + } } - - function lineStart() { - stream.point = pointLineStart; + }, + result: function() { + if (this._string.length) { + var result = this._string.join(""); + this._string = []; + return result; } - - function lineEnd() { - stream.point = point; - } - - function lineEndPolygon() { - string.push("Z"); - } - - return stream; } +}; - function circle$2(radius) { - return "m0," + radius - + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius - + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius - + "z"; - } +function circle$2(radius) { + return "m0," + radius + + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius + + "z"; +} - function index$3() { - var pointRadius = 4.5, - projection, - projectionStream, - context, - contextStream; +var index$3 = function() { + var pointRadius = 4.5, + projection, + projectionStream, + context, + contextStream; - function path(object) { - if (object) { - if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments)); - geoStream(object, projectionStream(contextStream)); - } - return contextStream.result(); + function path(object) { + if (object) { + if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments)); + geoStream(object, projectionStream(contextStream)); } + return contextStream.result(); + } - path.area = function(object) { - geoStream(object, projectionStream(areaStream$1)); - return areaStream$1.result(); - }; + path.area = function(object) { + geoStream(object, projectionStream(areaStream$1)); + return areaStream$1.result(); + }; - path.bounds = function(object) { - geoStream(object, projectionStream(boundsStream$1)); - return boundsStream$1.result(); - }; + path.bounds = function(object) { + geoStream(object, projectionStream(boundsStream$1)); + return boundsStream$1.result(); + }; - path.centroid = function(object) { - geoStream(object, projectionStream(centroidStream$1)); - return centroidStream$1.result(); - }; + path.centroid = function(object) { + geoStream(object, projectionStream(centroidStream$1)); + return centroidStream$1.result(); + }; - path.projection = function(_) { - return arguments.length ? (projectionStream = (projection = _) == null ? identity$7 : _.stream, path) : projection; - }; + path.projection = function(_) { + return arguments.length ? (projectionStream = (projection = _) == null ? identity$7 : _.stream, path) : projection; + }; - path.context = function(_) { - if (!arguments.length) return context; - contextStream = (context = _) == null ? new PathString : new PathContext(_); - if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius); - return path; - }; + path.context = function(_) { + if (!arguments.length) return context; + contextStream = (context = _) == null ? new PathString : new PathContext(_); + if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius); + return path; + }; - path.pointRadius = function(_) { - if (!arguments.length) return pointRadius; - pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_); - return path; - }; + path.pointRadius = function(_) { + if (!arguments.length) return pointRadius; + pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_); + return path; + }; - return path.projection(null).context(null); - } + return path.projection(null).context(null); +} - var sum$2 = adder(); +var sum$2 = adder(); - function polygonContains(polygon, point) { - var lambda = point[0], - phi = point[1], - normal = [sin$1(lambda), -cos$1(lambda), 0], - angle = 0, - winding = 0; +var polygonContains = function(polygon, point) { + var lambda = point[0], + phi = point[1], + normal = [sin$1(lambda), -cos$1(lambda), 0], + angle = 0, + winding = 0; - sum$2.reset(); + sum$2.reset(); - for (var i = 0, n = polygon.length; i < n; ++i) { - if (!(m = (ring = polygon[i]).length)) continue; - var ring, - m, - point0 = ring[m - 1], - lambda0 = point0[0], - phi0 = point0[1] / 2 + quarterPi, - sinPhi0 = sin$1(phi0), - cosPhi0 = cos$1(phi0); + for (var i = 0, n = polygon.length; i < n; ++i) { + if (!(m = (ring = polygon[i]).length)) continue; + var ring, + m, + point0 = ring[m - 1], + lambda0 = point0[0], + phi0 = point0[1] / 2 + quarterPi, + sinPhi0 = sin$1(phi0), + cosPhi0 = cos$1(phi0); - for (var j = 0; j < m; ++j, lambda0 = lambda1, sinPhi0 = sinPhi1, cosPhi0 = cosPhi1, point0 = point1) { - var point1 = ring[j], - lambda1 = point1[0], - phi1 = point1[1] / 2 + quarterPi, - sinPhi1 = sin$1(phi1), - cosPhi1 = cos$1(phi1), - delta = lambda1 - lambda0, - sign = delta >= 0 ? 1 : -1, - absDelta = sign * delta, - antimeridian = absDelta > pi$4, - k = sinPhi0 * sinPhi1; + for (var j = 0; j < m; ++j, lambda0 = lambda1, sinPhi0 = sinPhi1, cosPhi0 = cosPhi1, point0 = point1) { + var point1 = ring[j], + lambda1 = point1[0], + phi1 = point1[1] / 2 + quarterPi, + sinPhi1 = sin$1(phi1), + cosPhi1 = cos$1(phi1), + delta = lambda1 - lambda0, + sign$$1 = delta >= 0 ? 1 : -1, + absDelta = sign$$1 * delta, + antimeridian = absDelta > pi$4, + k = sinPhi0 * sinPhi1; - sum$2.add(atan2(k * sign * sin$1(absDelta), cosPhi0 * cosPhi1 + k * cos$1(absDelta))); - angle += antimeridian ? delta + sign * tau$4 : delta; + sum$2.add(atan2(k * sign$$1 * sin$1(absDelta), cosPhi0 * cosPhi1 + k * cos$1(absDelta))); + angle += antimeridian ? delta + sign$$1 * tau$4 : delta; - // Are the longitudes either side of the point’s meridian (lambda), - // and are the latitudes smaller than the parallel (phi)? - if (antimeridian ^ lambda0 >= lambda ^ lambda1 >= lambda) { - var arc = cartesianCross(cartesian(point0), cartesian(point1)); - cartesianNormalizeInPlace(arc); - var intersection = cartesianCross(normal, arc); - cartesianNormalizeInPlace(intersection); - var phiArc = (antimeridian ^ delta >= 0 ? -1 : 1) * asin$1(intersection[2]); - if (phi > phiArc || phi === phiArc && (arc[0] || arc[1])) { - winding += antimeridian ^ delta >= 0 ? 1 : -1; - } + // Are the longitudes either side of the point’s meridian (lambda), + // and are the latitudes smaller than the parallel (phi)? + if (antimeridian ^ lambda0 >= lambda ^ lambda1 >= lambda) { + var arc = cartesianCross(cartesian(point0), cartesian(point1)); + cartesianNormalizeInPlace(arc); + var intersection = cartesianCross(normal, arc); + cartesianNormalizeInPlace(intersection); + var phiArc = (antimeridian ^ delta >= 0 ? -1 : 1) * asin$1(intersection[2]); + if (phi > phiArc || phi === phiArc && (arc[0] || arc[1])) { + winding += antimeridian ^ delta >= 0 ? 1 : -1; } } } + } - // First, determine whether the South pole is inside or outside: - // - // It is inside if: - // * the polygon winds around it in a clockwise direction. - // * the polygon does not (cumulatively) wind around it, but has a negative - // (counter-clockwise) area. - // - // Second, count the (signed) number of times a segment crosses a lambda - // from the point to the South pole. If it is zero, then the point is the - // same side as the South pole. + // First, determine whether the South pole is inside or outside: + // + // It is inside if: + // * the polygon winds around it in a clockwise direction. + // * the polygon does not (cumulatively) wind around it, but has a negative + // (counter-clockwise) area. + // + // Second, count the (signed) number of times a segment crosses a lambda + // from the point to the South pole. If it is zero, then the point is the + // same side as the South pole. - return (angle < -epsilon$4 || angle < epsilon$4 && sum$2 < -epsilon$4) ^ (winding & 1); - } + return (angle < -epsilon$4 || angle < epsilon$4 && sum$2 < -epsilon$4) ^ (winding & 1); +} - function clip(pointVisible, clipLine, interpolate, start) { - return function(rotate, sink) { - var line = clipLine(sink), - rotatedStart = rotate.invert(start[0], start[1]), - ringBuffer = clipBuffer(), - ringSink = clipLine(ringBuffer), - polygonStarted = false, - polygon, - segments, - ring; +var clip = function(pointVisible, clipLine, interpolate, start) { + return function(rotate, sink) { + var line = clipLine(sink), + rotatedStart = rotate.invert(start[0], start[1]), + ringBuffer = clipBuffer(), + ringSink = clipLine(ringBuffer), + polygonStarted = false, + polygon, + segments, + ring; - var clip = { - point: point, - lineStart: lineStart, - lineEnd: lineEnd, - polygonStart: function() { - clip.point = pointRing; - clip.lineStart = ringStart; - clip.lineEnd = ringEnd; - segments = []; - polygon = []; - }, - polygonEnd: function() { - clip.point = point; - clip.lineStart = lineStart; - clip.lineEnd = lineEnd; - segments = merge(segments); - var startInside = polygonContains(polygon, rotatedStart); - if (segments.length) { - if (!polygonStarted) sink.polygonStart(), polygonStarted = true; - clipPolygon(segments, compareIntersection, startInside, interpolate, sink); - } else if (startInside) { - if (!polygonStarted) sink.polygonStart(), polygonStarted = true; - sink.lineStart(); - interpolate(null, null, 1, sink); - sink.lineEnd(); - } - if (polygonStarted) sink.polygonEnd(), polygonStarted = false; - segments = polygon = null; - }, - sphere: function() { - sink.polygonStart(); + var clip = { + point: point, + lineStart: lineStart, + lineEnd: lineEnd, + polygonStart: function() { + clip.point = pointRing; + clip.lineStart = ringStart; + clip.lineEnd = ringEnd; + segments = []; + polygon = []; + }, + polygonEnd: function() { + clip.point = point; + clip.lineStart = lineStart; + clip.lineEnd = lineEnd; + segments = merge(segments); + var startInside = polygonContains(polygon, rotatedStart); + if (segments.length) { + if (!polygonStarted) sink.polygonStart(), polygonStarted = true; + clipPolygon(segments, compareIntersection, startInside, interpolate, sink); + } else if (startInside) { + if (!polygonStarted) sink.polygonStart(), polygonStarted = true; sink.lineStart(); interpolate(null, null, 1, sink); sink.lineEnd(); - sink.polygonEnd(); } - }; - - function point(lambda, phi) { - var point = rotate(lambda, phi); - if (pointVisible(lambda = point[0], phi = point[1])) sink.point(lambda, phi); + if (polygonStarted) sink.polygonEnd(), polygonStarted = false; + segments = polygon = null; + }, + sphere: function() { + sink.polygonStart(); + sink.lineStart(); + interpolate(null, null, 1, sink); + sink.lineEnd(); + sink.polygonEnd(); } + }; - function pointLine(lambda, phi) { - var point = rotate(lambda, phi); - line.point(point[0], point[1]); - } + function point(lambda, phi) { + var point = rotate(lambda, phi); + if (pointVisible(lambda = point[0], phi = point[1])) sink.point(lambda, phi); + } - function lineStart() { - clip.point = pointLine; - line.lineStart(); - } + function pointLine(lambda, phi) { + var point = rotate(lambda, phi); + line.point(point[0], point[1]); + } - function lineEnd() { - clip.point = point; - line.lineEnd(); - } + function lineStart() { + clip.point = pointLine; + line.lineStart(); + } - function pointRing(lambda, phi) { - ring.push([lambda, phi]); - var point = rotate(lambda, phi); - ringSink.point(point[0], point[1]); - } + function lineEnd() { + clip.point = point; + line.lineEnd(); + } - function ringStart() { - ringSink.lineStart(); - ring = []; - } + function pointRing(lambda, phi) { + ring.push([lambda, phi]); + var point = rotate(lambda, phi); + ringSink.point(point[0], point[1]); + } - function ringEnd() { - pointRing(ring[0][0], ring[0][1]); - ringSink.lineEnd(); + function ringStart() { + ringSink.lineStart(); + ring = []; + } - var clean = ringSink.clean(), - ringSegments = ringBuffer.result(), - i, n = ringSegments.length, m, - segment, - point; + function ringEnd() { + pointRing(ring[0][0], ring[0][1]); + ringSink.lineEnd(); - ring.pop(); - polygon.push(ring); - ring = null; + var clean = ringSink.clean(), + ringSegments = ringBuffer.result(), + i, n = ringSegments.length, m, + segment, + point; - if (!n) return; + ring.pop(); + polygon.push(ring); + ring = null; - // No intersections. - if (clean & 1) { - segment = ringSegments[0]; - if ((m = segment.length - 1) > 0) { - if (!polygonStarted) sink.polygonStart(), polygonStarted = true; - sink.lineStart(); - for (i = 0; i < m; ++i) sink.point((point = segment[i])[0], point[1]); - sink.lineEnd(); - } - return; + if (!n) return; + + // No intersections. + if (clean & 1) { + segment = ringSegments[0]; + if ((m = segment.length - 1) > 0) { + if (!polygonStarted) sink.polygonStart(), polygonStarted = true; + sink.lineStart(); + for (i = 0; i < m; ++i) sink.point((point = segment[i])[0], point[1]); + sink.lineEnd(); } + return; + } - // Rejoin connected segments. - // TODO reuse ringBuffer.rejoin()? - if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift())); + // Rejoin connected segments. + // TODO reuse ringBuffer.rejoin()? + if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift())); - segments.push(ringSegments.filter(validSegment)); - } + segments.push(ringSegments.filter(validSegment)); + } - return clip; - }; - } + return clip; + }; +} - function validSegment(segment) { - return segment.length > 1; - } +function validSegment(segment) { + return segment.length > 1; +} - // Intersections are sorted along the clip edge. For both antimeridian cutting - // and circle clipping, the same comparison is used. - function compareIntersection(a, b) { - return ((a = a.x)[0] < 0 ? a[1] - halfPi$3 - epsilon$4 : halfPi$3 - a[1]) - - ((b = b.x)[0] < 0 ? b[1] - halfPi$3 - epsilon$4 : halfPi$3 - b[1]); - } +// Intersections are sorted along the clip edge. For both antimeridian cutting +// and circle clipping, the same comparison is used. +function compareIntersection(a, b) { + return ((a = a.x)[0] < 0 ? a[1] - halfPi$3 - epsilon$4 : halfPi$3 - a[1]) + - ((b = b.x)[0] < 0 ? b[1] - halfPi$3 - epsilon$4 : halfPi$3 - b[1]); +} - var clipAntimeridian = clip( - function() { return true; }, - clipAntimeridianLine, - clipAntimeridianInterpolate, - [-pi$4, -halfPi$3] - ); +var clipAntimeridian = clip( + function() { return true; }, + clipAntimeridianLine, + clipAntimeridianInterpolate, + [-pi$4, -halfPi$3] +); - // Takes a line and cuts into visible segments. Return values: 0 - there were - // intersections or the line was empty; 1 - no intersections; 2 - there were - // intersections, and the first and last segments should be rejoined. - function clipAntimeridianLine(stream) { - var lambda0 = NaN, - phi0 = NaN, - sign0 = NaN, - clean; // no intersections +// Takes a line and cuts into visible segments. Return values: 0 - there were +// intersections or the line was empty; 1 - no intersections; 2 - there were +// intersections, and the first and last segments should be rejoined. +function clipAntimeridianLine(stream) { + var lambda0 = NaN, + phi0 = NaN, + sign0 = NaN, + clean; // no intersections - return { - lineStart: function() { + return { + lineStart: function() { + stream.lineStart(); + clean = 1; + }, + point: function(lambda1, phi1) { + var sign1 = lambda1 > 0 ? pi$4 : -pi$4, + delta = abs(lambda1 - lambda0); + if (abs(delta - pi$4) < epsilon$4) { // line crosses a pole + stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi$3 : -halfPi$3); + stream.point(sign0, phi0); + stream.lineEnd(); stream.lineStart(); - clean = 1; - }, - point: function(lambda1, phi1) { - var sign1 = lambda1 > 0 ? pi$4 : -pi$4, - delta = abs(lambda1 - lambda0); - if (abs(delta - pi$4) < epsilon$4) { // line crosses a pole - stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi$3 : -halfPi$3); - stream.point(sign0, phi0); - stream.lineEnd(); - stream.lineStart(); - stream.point(sign1, phi0); - stream.point(lambda1, phi0); - clean = 0; - } else if (sign0 !== sign1 && delta >= pi$4) { // line crosses antimeridian - if (abs(lambda0 - sign0) < epsilon$4) lambda0 -= sign0 * epsilon$4; // handle degeneracies - if (abs(lambda1 - sign1) < epsilon$4) lambda1 -= sign1 * epsilon$4; - phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1); - stream.point(sign0, phi0); - stream.lineEnd(); - stream.lineStart(); - stream.point(sign1, phi0); - clean = 0; - } - stream.point(lambda0 = lambda1, phi0 = phi1); - sign0 = sign1; - }, - lineEnd: function() { + stream.point(sign1, phi0); + stream.point(lambda1, phi0); + clean = 0; + } else if (sign0 !== sign1 && delta >= pi$4) { // line crosses antimeridian + if (abs(lambda0 - sign0) < epsilon$4) lambda0 -= sign0 * epsilon$4; // handle degeneracies + if (abs(lambda1 - sign1) < epsilon$4) lambda1 -= sign1 * epsilon$4; + phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1); + stream.point(sign0, phi0); stream.lineEnd(); - lambda0 = phi0 = NaN; - }, - clean: function() { - return 2 - clean; // if intersections, rejoin first and last segments + stream.lineStart(); + stream.point(sign1, phi0); + clean = 0; } - }; - } + stream.point(lambda0 = lambda1, phi0 = phi1); + sign0 = sign1; + }, + lineEnd: function() { + stream.lineEnd(); + lambda0 = phi0 = NaN; + }, + clean: function() { + return 2 - clean; // if intersections, rejoin first and last segments + } + }; +} - function clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) { - var cosPhi0, - cosPhi1, - sinLambda0Lambda1 = sin$1(lambda0 - lambda1); - return abs(sinLambda0Lambda1) > epsilon$4 - ? atan((sin$1(phi0) * (cosPhi1 = cos$1(phi1)) * sin$1(lambda1) - - sin$1(phi1) * (cosPhi0 = cos$1(phi0)) * sin$1(lambda0)) - / (cosPhi0 * cosPhi1 * sinLambda0Lambda1)) - : (phi0 + phi1) / 2; - } +function clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) { + var cosPhi0, + cosPhi1, + sinLambda0Lambda1 = sin$1(lambda0 - lambda1); + return abs(sinLambda0Lambda1) > epsilon$4 + ? atan((sin$1(phi0) * (cosPhi1 = cos$1(phi1)) * sin$1(lambda1) + - sin$1(phi1) * (cosPhi0 = cos$1(phi0)) * sin$1(lambda0)) + / (cosPhi0 * cosPhi1 * sinLambda0Lambda1)) + : (phi0 + phi1) / 2; +} - function clipAntimeridianInterpolate(from, to, direction, stream) { - var phi; - if (from == null) { - phi = direction * halfPi$3; - stream.point(-pi$4, phi); - stream.point(0, phi); - stream.point(pi$4, phi); - stream.point(pi$4, 0); - stream.point(pi$4, -phi); - stream.point(0, -phi); - stream.point(-pi$4, -phi); - stream.point(-pi$4, 0); - stream.point(-pi$4, phi); - } else if (abs(from[0] - to[0]) > epsilon$4) { - var lambda = from[0] < to[0] ? pi$4 : -pi$4; - phi = direction * lambda / 2; - stream.point(-lambda, phi); - stream.point(0, phi); - stream.point(lambda, phi); - } else { - stream.point(to[0], to[1]); - } +function clipAntimeridianInterpolate(from, to, direction, stream) { + var phi; + if (from == null) { + phi = direction * halfPi$3; + stream.point(-pi$4, phi); + stream.point(0, phi); + stream.point(pi$4, phi); + stream.point(pi$4, 0); + stream.point(pi$4, -phi); + stream.point(0, -phi); + stream.point(-pi$4, -phi); + stream.point(-pi$4, 0); + stream.point(-pi$4, phi); + } else if (abs(from[0] - to[0]) > epsilon$4) { + var lambda = from[0] < to[0] ? pi$4 : -pi$4; + phi = direction * lambda / 2; + stream.point(-lambda, phi); + stream.point(0, phi); + stream.point(lambda, phi); + } else { + stream.point(to[0], to[1]); } +} - function clipCircle(radius, delta) { - var cr = cos$1(radius), - smallRadius = cr > 0, - notHemisphere = abs(cr) > epsilon$4; // TODO optimise for this common case +var clipCircle = function(radius, delta) { + var cr = cos$1(radius), + smallRadius = cr > 0, + notHemisphere = abs(cr) > epsilon$4; // TODO optimise for this common case - function interpolate(from, to, direction, stream) { - circleStream(stream, radius, delta, direction, from, to); - } + function interpolate(from, to, direction, stream) { + circleStream(stream, radius, delta, direction, from, to); + } - function visible(lambda, phi) { - return cos$1(lambda) * cos$1(phi) > cr; - } + function visible(lambda, phi) { + return cos$1(lambda) * cos$1(phi) > cr; + } - // Takes a line and cuts into visible segments. Return values used for polygon - // clipping: 0 - there were intersections or the line was empty; 1 - no - // intersections 2 - there were intersections, and the first and last segments - // should be rejoined. - function clipLine(stream) { - var point0, // previous point - c0, // code for previous point - v0, // visibility of previous point - v00, // visibility of first point - clean; // no intersections - return { - lineStart: function() { - v00 = v0 = false; - clean = 1; - }, - point: function(lambda, phi) { - var point1 = [lambda, phi], - point2, - v = visible(lambda, phi), - c = smallRadius - ? v ? 0 : code(lambda, phi) - : v ? code(lambda + (lambda < 0 ? pi$4 : -pi$4), phi) : 0; - if (!point0 && (v00 = v0 = v)) stream.lineStart(); - // Handle degeneracies. - // TODO ignore if not clipping polygons. - if (v !== v0) { + // Takes a line and cuts into visible segments. Return values used for polygon + // clipping: 0 - there were intersections or the line was empty; 1 - no + // intersections 2 - there were intersections, and the first and last segments + // should be rejoined. + function clipLine(stream) { + var point0, // previous point + c0, // code for previous point + v0, // visibility of previous point + v00, // visibility of first point + clean; // no intersections + return { + lineStart: function() { + v00 = v0 = false; + clean = 1; + }, + point: function(lambda, phi) { + var point1 = [lambda, phi], + point2, + v = visible(lambda, phi), + c = smallRadius + ? v ? 0 : code(lambda, phi) + : v ? code(lambda + (lambda < 0 ? pi$4 : -pi$4), phi) : 0; + if (!point0 && (v00 = v0 = v)) stream.lineStart(); + // Handle degeneracies. + // TODO ignore if not clipping polygons. + if (v !== v0) { + point2 = intersect(point0, point1); + if (pointEqual(point0, point2) || pointEqual(point1, point2)) { + point1[0] += epsilon$4; + point1[1] += epsilon$4; + v = visible(point1[0], point1[1]); + } + } + if (v !== v0) { + clean = 0; + if (v) { + // outside going in + stream.lineStart(); + point2 = intersect(point1, point0); + stream.point(point2[0], point2[1]); + } else { + // inside going out point2 = intersect(point0, point1); - if (pointEqual(point0, point2) || pointEqual(point1, point2)) { - point1[0] += epsilon$4; - point1[1] += epsilon$4; - v = visible(point1[0], point1[1]); - } + stream.point(point2[0], point2[1]); + stream.lineEnd(); } - if (v !== v0) { + point0 = point2; + } else if (notHemisphere && point0 && smallRadius ^ v) { + var t; + // If the codes for two points are different, or are both zero, + // and there this segment intersects with the small circle. + if (!(c & c0) && (t = intersect(point1, point0, true))) { clean = 0; - if (v) { - // outside going in + if (smallRadius) { stream.lineStart(); - point2 = intersect(point1, point0); - stream.point(point2[0], point2[1]); + stream.point(t[0][0], t[0][1]); + stream.point(t[1][0], t[1][1]); + stream.lineEnd(); } else { - // inside going out - point2 = intersect(point0, point1); - stream.point(point2[0], point2[1]); + stream.point(t[1][0], t[1][1]); stream.lineEnd(); + stream.lineStart(); + stream.point(t[0][0], t[0][1]); } - point0 = point2; - } else if (notHemisphere && point0 && smallRadius ^ v) { - var t; - // If the codes for two points are different, or are both zero, - // and there this segment intersects with the small circle. - if (!(c & c0) && (t = intersect(point1, point0, true))) { - clean = 0; - if (smallRadius) { - stream.lineStart(); - stream.point(t[0][0], t[0][1]); - stream.point(t[1][0], t[1][1]); - stream.lineEnd(); - } else { - stream.point(t[1][0], t[1][1]); - stream.lineEnd(); - stream.lineStart(); - stream.point(t[0][0], t[0][1]); - } - } } - if (v && (!point0 || !pointEqual(point0, point1))) { - stream.point(point1[0], point1[1]); - } - point0 = point1, v0 = v, c0 = c; - }, - lineEnd: function() { - if (v0) stream.lineEnd(); - point0 = null; - }, - // Rejoin first and last segments if there were intersections and the first - // and last points were visible. - clean: function() { - return clean | ((v00 && v0) << 1); } - }; - } + if (v && (!point0 || !pointEqual(point0, point1))) { + stream.point(point1[0], point1[1]); + } + point0 = point1, v0 = v, c0 = c; + }, + lineEnd: function() { + if (v0) stream.lineEnd(); + point0 = null; + }, + // Rejoin first and last segments if there were intersections and the first + // and last points were visible. + clean: function() { + return clean | ((v00 && v0) << 1); + } + }; + } - // Intersects the great circle between a and b with the clip circle. - function intersect(a, b, two) { - var pa = cartesian(a), - pb = cartesian(b); + // Intersects the great circle between a and b with the clip circle. + function intersect(a, b, two) { + var pa = cartesian(a), + pb = cartesian(b); - // We have two planes, n1.p = d1 and n2.p = d2. - // Find intersection line p(t) = c1 n1 + c2 n2 + t (n1 ⨯ n2). - var n1 = [1, 0, 0], // normal - n2 = cartesianCross(pa, pb), - n2n2 = cartesianDot(n2, n2), - n1n2 = n2[0], // cartesianDot(n1, n2), - determinant = n2n2 - n1n2 * n1n2; + // We have two planes, n1.p = d1 and n2.p = d2. + // Find intersection line p(t) = c1 n1 + c2 n2 + t (n1 ⨯ n2). + var n1 = [1, 0, 0], // normal + n2 = cartesianCross(pa, pb), + n2n2 = cartesianDot(n2, n2), + n1n2 = n2[0], // cartesianDot(n1, n2), + determinant = n2n2 - n1n2 * n1n2; - // Two polar points. - if (!determinant) return !two && a; + // Two polar points. + if (!determinant) return !two && a; - var c1 = cr * n2n2 / determinant, - c2 = -cr * n1n2 / determinant, - n1xn2 = cartesianCross(n1, n2), - A = cartesianScale(n1, c1), - B = cartesianScale(n2, c2); - cartesianAddInPlace(A, B); + var c1 = cr * n2n2 / determinant, + c2 = -cr * n1n2 / determinant, + n1xn2 = cartesianCross(n1, n2), + A = cartesianScale(n1, c1), + B = cartesianScale(n2, c2); + cartesianAddInPlace(A, B); - // Solve |p(t)|^2 = 1. - var u = n1xn2, - w = cartesianDot(A, u), - uu = cartesianDot(u, u), - t2 = w * w - uu * (cartesianDot(A, A) - 1); + // Solve |p(t)|^2 = 1. + var u = n1xn2, + w = cartesianDot(A, u), + uu = cartesianDot(u, u), + t2 = w * w - uu * (cartesianDot(A, A) - 1); - if (t2 < 0) return; + if (t2 < 0) return; - var t = sqrt$1(t2), - q = cartesianScale(u, (-w - t) / uu); - cartesianAddInPlace(q, A); - q = spherical(q); + var t = sqrt$1(t2), + q = cartesianScale(u, (-w - t) / uu); + cartesianAddInPlace(q, A); + q = spherical(q); - if (!two) return q; + if (!two) return q; - // Two intersection points. - var lambda0 = a[0], - lambda1 = b[0], - phi0 = a[1], - phi1 = b[1], - z; + // Two intersection points. + var lambda0 = a[0], + lambda1 = b[0], + phi0 = a[1], + phi1 = b[1], + z; - if (lambda1 < lambda0) z = lambda0, lambda0 = lambda1, lambda1 = z; + if (lambda1 < lambda0) z = lambda0, lambda0 = lambda1, lambda1 = z; - var delta = lambda1 - lambda0, - polar = abs(delta - pi$4) < epsilon$4, - meridian = polar || delta < epsilon$4; + var delta = lambda1 - lambda0, + polar = abs(delta - pi$4) < epsilon$4, + meridian = polar || delta < epsilon$4; - if (!polar && phi1 < phi0) z = phi0, phi0 = phi1, phi1 = z; + if (!polar && phi1 < phi0) z = phi0, phi0 = phi1, phi1 = z; - // Check that the first point is between a and b. - if (meridian - ? polar - ? phi0 + phi1 > 0 ^ q[1] < (abs(q[0] - lambda0) < epsilon$4 ? phi0 : phi1) - : phi0 <= q[1] && q[1] <= phi1 - : delta > pi$4 ^ (lambda0 <= q[0] && q[0] <= lambda1)) { - var q1 = cartesianScale(u, (-w + t) / uu); - cartesianAddInPlace(q1, A); - return [q, spherical(q1)]; - } + // Check that the first point is between a and b. + if (meridian + ? polar + ? phi0 + phi1 > 0 ^ q[1] < (abs(q[0] - lambda0) < epsilon$4 ? phi0 : phi1) + : phi0 <= q[1] && q[1] <= phi1 + : delta > pi$4 ^ (lambda0 <= q[0] && q[0] <= lambda1)) { + var q1 = cartesianScale(u, (-w + t) / uu); + cartesianAddInPlace(q1, A); + return [q, spherical(q1)]; } - - // Generates a 4-bit vector representing the location of a point relative to - // the small circle's bounding box. - function code(lambda, phi) { - var r = smallRadius ? radius : pi$4 - radius, - code = 0; - if (lambda < -r) code |= 1; // left - else if (lambda > r) code |= 2; // right - if (phi < -r) code |= 4; // below - else if (phi > r) code |= 8; // above - return code; - } - - return clip(visible, clipLine, interpolate, smallRadius ? [0, -radius] : [-pi$4, radius - pi$4]); } - function transform$1(prototype) { - return { - stream: transform$2(prototype) - }; + // Generates a 4-bit vector representing the location of a point relative to + // the small circle's bounding box. + function code(lambda, phi) { + var r = smallRadius ? radius : pi$4 - radius, + code = 0; + if (lambda < -r) code |= 1; // left + else if (lambda > r) code |= 2; // right + if (phi < -r) code |= 4; // below + else if (phi > r) code |= 8; // above + return code; } - function transform$2(prototype) { - function T() {} - var p = T.prototype = Object.create(Transform$1.prototype); - for (var k in prototype) p[k] = prototype[k]; - return function(stream) { - var t = new T; - t.stream = stream; - return t; - }; - } + return clip(visible, clipLine, interpolate, smallRadius ? [0, -radius] : [-pi$4, radius - pi$4]); +} - function Transform$1() {} +var transform$1 = function(prototype) { + return { + stream: transform$2(prototype) + }; +} - Transform$1.prototype = { - point: function(x, y) { this.stream.point(x, y); }, - sphere: function() { this.stream.sphere(); }, - lineStart: function() { this.stream.lineStart(); }, - lineEnd: function() { this.stream.lineEnd(); }, - polygonStart: function() { this.stream.polygonStart(); }, - polygonEnd: function() { this.stream.polygonEnd(); } +function transform$2(prototype) { + function T() {} + var p = T.prototype = Object.create(Transform$1.prototype); + for (var k in prototype) p[k] = prototype[k]; + return function(stream) { + var t = new T; + t.stream = stream; + return t; }; +} - function fit(project, extent, object) { - var w = extent[1][0] - extent[0][0], - h = extent[1][1] - extent[0][1], - clip = project.clipExtent && project.clipExtent(); +function Transform$1() {} - project - .scale(150) - .translate([0, 0]); +Transform$1.prototype = { + point: function(x, y) { this.stream.point(x, y); }, + sphere: function() { this.stream.sphere(); }, + lineStart: function() { this.stream.lineStart(); }, + lineEnd: function() { this.stream.lineEnd(); }, + polygonStart: function() { this.stream.polygonStart(); }, + polygonEnd: function() { this.stream.polygonEnd(); } +}; - if (clip != null) project.clipExtent(null); +function fit(project, extent, object) { + var w = extent[1][0] - extent[0][0], + h = extent[1][1] - extent[0][1], + clip = project.clipExtent && project.clipExtent(); - geoStream(object, project.stream(boundsStream$1)); + project + .scale(150) + .translate([0, 0]); - var b = boundsStream$1.result(), - k = Math.min(w / (b[1][0] - b[0][0]), h / (b[1][1] - b[0][1])), - x = +extent[0][0] + (w - k * (b[1][0] + b[0][0])) / 2, - y = +extent[0][1] + (h - k * (b[1][1] + b[0][1])) / 2; + if (clip != null) project.clipExtent(null); - if (clip != null) project.clipExtent(clip); + geoStream(object, project.stream(boundsStream$1)); - return project - .scale(k * 150) - .translate([x, y]); - } + var b = boundsStream$1.result(), + k = Math.min(w / (b[1][0] - b[0][0]), h / (b[1][1] - b[0][1])), + x = +extent[0][0] + (w - k * (b[1][0] + b[0][0])) / 2, + y = +extent[0][1] + (h - k * (b[1][1] + b[0][1])) / 2; - function fitSize(project) { - return function(size, object) { - return fit(project, [[0, 0], size], object); - }; - } + if (clip != null) project.clipExtent(clip); - function fitExtent(project) { - return function(extent, object) { - return fit(project, extent, object); - }; - } + return project + .scale(k * 150) + .translate([x, y]); +} - var maxDepth = 16; - var cosMinDistance = cos$1(30 * radians); - // cos(minimum angular distance) +function fitSize(project) { + return function(size, object) { + return fit(project, [[0, 0], size], object); + }; +} - function resample(project, delta2) { - return +delta2 ? resample$1(project, delta2) : resampleNone(project); - } +function fitExtent(project) { + return function(extent, object) { + return fit(project, extent, object); + }; +} - function resampleNone(project) { - return transform$2({ - point: function(x, y) { - x = project(x, y); - this.stream.point(x[0], x[1]); - } - }); - } +var maxDepth = 16; +var cosMinDistance = cos$1(30 * radians); // cos(minimum angular distance) - function resample$1(project, delta2) { +var resample = function(project, delta2) { + return +delta2 ? resample$1(project, delta2) : resampleNone(project); +} - function resampleLineTo(x0, y0, lambda0, a0, b0, c0, x1, y1, lambda1, a1, b1, c1, depth, stream) { - var dx = x1 - x0, - dy = y1 - y0, - d2 = dx * dx + dy * dy; - if (d2 > 4 * delta2 && depth--) { - var a = a0 + a1, - b = b0 + b1, - c = c0 + c1, - m = sqrt$1(a * a + b * b + c * c), - phi2 = asin$1(c /= m), - lambda2 = abs(abs(c) - 1) < epsilon$4 || abs(lambda0 - lambda1) < epsilon$4 ? (lambda0 + lambda1) / 2 : atan2(b, a), - p = project(lambda2, phi2), - x2 = p[0], - y2 = p[1], - dx2 = x2 - x0, - dy2 = y2 - y0, - dz = dy * dx2 - dx * dy2; - if (dz * dz / d2 > delta2 // perpendicular projected distance - || abs((dx * dx2 + dy * dy2) / d2 - 0.5) > 0.3 // midpoint close to an end - || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) { // angular distance - resampleLineTo(x0, y0, lambda0, a0, b0, c0, x2, y2, lambda2, a /= m, b /= m, c, depth, stream); - stream.point(x2, y2); - resampleLineTo(x2, y2, lambda2, a, b, c, x1, y1, lambda1, a1, b1, c1, depth, stream); - } - } +function resampleNone(project) { + return transform$2({ + point: function(x, y) { + x = project(x, y); + this.stream.point(x[0], x[1]); } - return function(stream) { - var lambda00, x00, y00, a00, b00, c00, // first point - lambda0, x0, y0, a0, b0, c0; // previous point + }); +} - var resampleStream = { - point: point, - lineStart: lineStart, - lineEnd: lineEnd, - polygonStart: function() { stream.polygonStart(); resampleStream.lineStart = ringStart; }, - polygonEnd: function() { stream.polygonEnd(); resampleStream.lineStart = lineStart; } - }; +function resample$1(project, delta2) { - function point(x, y) { - x = project(x, y); - stream.point(x[0], x[1]); + function resampleLineTo(x0, y0, lambda0, a0, b0, c0, x1, y1, lambda1, a1, b1, c1, depth, stream) { + var dx = x1 - x0, + dy = y1 - y0, + d2 = dx * dx + dy * dy; + if (d2 > 4 * delta2 && depth--) { + var a = a0 + a1, + b = b0 + b1, + c = c0 + c1, + m = sqrt$1(a * a + b * b + c * c), + phi2 = asin$1(c /= m), + lambda2 = abs(abs(c) - 1) < epsilon$4 || abs(lambda0 - lambda1) < epsilon$4 ? (lambda0 + lambda1) / 2 : atan2(b, a), + p = project(lambda2, phi2), + x2 = p[0], + y2 = p[1], + dx2 = x2 - x0, + dy2 = y2 - y0, + dz = dy * dx2 - dx * dy2; + if (dz * dz / d2 > delta2 // perpendicular projected distance + || abs((dx * dx2 + dy * dy2) / d2 - 0.5) > 0.3 // midpoint close to an end + || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) { // angular distance + resampleLineTo(x0, y0, lambda0, a0, b0, c0, x2, y2, lambda2, a /= m, b /= m, c, depth, stream); + stream.point(x2, y2); + resampleLineTo(x2, y2, lambda2, a, b, c, x1, y1, lambda1, a1, b1, c1, depth, stream); } + } + } + return function(stream) { + var lambda00, x00, y00, a00, b00, c00, // first point + lambda0, x0, y0, a0, b0, c0; // previous point - function lineStart() { - x0 = NaN; - resampleStream.point = linePoint; - stream.lineStart(); - } + var resampleStream = { + point: point, + lineStart: lineStart, + lineEnd: lineEnd, + polygonStart: function() { stream.polygonStart(); resampleStream.lineStart = ringStart; }, + polygonEnd: function() { stream.polygonEnd(); resampleStream.lineStart = lineStart; } + }; - function linePoint(lambda, phi) { - var c = cartesian([lambda, phi]), p = project(lambda, phi); - resampleLineTo(x0, y0, lambda0, a0, b0, c0, x0 = p[0], y0 = p[1], lambda0 = lambda, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream); - stream.point(x0, y0); - } + function point(x, y) { + x = project(x, y); + stream.point(x[0], x[1]); + } - function lineEnd() { - resampleStream.point = point; - stream.lineEnd(); - } + function lineStart() { + x0 = NaN; + resampleStream.point = linePoint; + stream.lineStart(); + } - function ringStart() { - lineStart(); - resampleStream.point = ringPoint; - resampleStream.lineEnd = ringEnd; - } + function linePoint(lambda, phi) { + var c = cartesian([lambda, phi]), p = project(lambda, phi); + resampleLineTo(x0, y0, lambda0, a0, b0, c0, x0 = p[0], y0 = p[1], lambda0 = lambda, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream); + stream.point(x0, y0); + } - function ringPoint(lambda, phi) { - linePoint(lambda00 = lambda, phi), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0; - resampleStream.point = linePoint; - } + function lineEnd() { + resampleStream.point = point; + stream.lineEnd(); + } - function ringEnd() { - resampleLineTo(x0, y0, lambda0, a0, b0, c0, x00, y00, lambda00, a00, b00, c00, maxDepth, stream); - resampleStream.lineEnd = lineEnd; - lineEnd(); - } + function ringStart() { + lineStart(); + resampleStream.point = ringPoint; + resampleStream.lineEnd = ringEnd; + } - return resampleStream; - }; - } + function ringPoint(lambda, phi) { + linePoint(lambda00 = lambda, phi), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0; + resampleStream.point = linePoint; + } - var transformRadians = transform$2({ - point: function(x, y) { - this.stream.point(x * radians, y * radians); + function ringEnd() { + resampleLineTo(x0, y0, lambda0, a0, b0, c0, x00, y00, lambda00, a00, b00, c00, maxDepth, stream); + resampleStream.lineEnd = lineEnd; + lineEnd(); } - }); - function projection(project) { - return projectionMutator(function() { return project; })(); + return resampleStream; + }; +} + +var transformRadians = transform$2({ + point: function(x, y) { + this.stream.point(x * radians, y * radians); } +}); - function projectionMutator(projectAt) { - var project, - k = 150, // scale - x = 480, y = 250, // translate - dx, dy, lambda = 0, phi = 0, // center - deltaLambda = 0, deltaPhi = 0, deltaGamma = 0, rotate, projectRotate, // rotate - theta = null, preclip = clipAntimeridian, // clip angle - x0 = null, y0, x1, y1, postclip = identity$7, // clip extent - delta2 = 0.5, projectResample = resample(projectTransform, delta2), // precision - cache, - cacheStream; +function projection(project) { + return projectionMutator(function() { return project; })(); +} - function projection(point) { - point = projectRotate(point[0] * radians, point[1] * radians); - return [point[0] * k + dx, dy - point[1] * k]; - } +function projectionMutator(projectAt) { + var project, + k = 150, // scale + x = 480, y = 250, // translate + dx, dy, lambda = 0, phi = 0, // center + deltaLambda = 0, deltaPhi = 0, deltaGamma = 0, rotate, projectRotate, // rotate + theta = null, preclip = clipAntimeridian, // clip angle + x0 = null, y0, x1, y1, postclip = identity$7, // clip extent + delta2 = 0.5, projectResample = resample(projectTransform, delta2), // precision + cache, + cacheStream; - function invert(point) { - point = projectRotate.invert((point[0] - dx) / k, (dy - point[1]) / k); - return point && [point[0] * degrees$1, point[1] * degrees$1]; - } + function projection(point) { + point = projectRotate(point[0] * radians, point[1] * radians); + return [point[0] * k + dx, dy - point[1] * k]; + } - function projectTransform(x, y) { - return x = project(x, y), [x[0] * k + dx, dy - x[1] * k]; - } + function invert(point) { + point = projectRotate.invert((point[0] - dx) / k, (dy - point[1]) / k); + return point && [point[0] * degrees$1, point[1] * degrees$1]; + } - projection.stream = function(stream) { - return cache && cacheStream === stream ? cache : cache = transformRadians(preclip(rotate, projectResample(postclip(cacheStream = stream)))); - }; + function projectTransform(x, y) { + return x = project(x, y), [x[0] * k + dx, dy - x[1] * k]; + } - projection.clipAngle = function(_) { - return arguments.length ? (preclip = +_ ? clipCircle(theta = _ * radians, 6 * radians) : (theta = null, clipAntimeridian), reset()) : theta * degrees$1; - }; + projection.stream = function(stream) { + return cache && cacheStream === stream ? cache : cache = transformRadians(preclip(rotate, projectResample(postclip(cacheStream = stream)))); + }; - projection.clipExtent = function(_) { - return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$7) : clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]]; - }; + projection.clipAngle = function(_) { + return arguments.length ? (preclip = +_ ? clipCircle(theta = _ * radians, 6 * radians) : (theta = null, clipAntimeridian), reset()) : theta * degrees$1; + }; - projection.scale = function(_) { - return arguments.length ? (k = +_, recenter()) : k; - }; + projection.clipExtent = function(_) { + return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$7) : clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]]; + }; - projection.translate = function(_) { - return arguments.length ? (x = +_[0], y = +_[1], recenter()) : [x, y]; - }; + projection.scale = function(_) { + return arguments.length ? (k = +_, recenter()) : k; + }; - projection.center = function(_) { - return arguments.length ? (lambda = _[0] % 360 * radians, phi = _[1] % 360 * radians, recenter()) : [lambda * degrees$1, phi * degrees$1]; - }; + projection.translate = function(_) { + return arguments.length ? (x = +_[0], y = +_[1], recenter()) : [x, y]; + }; - projection.rotate = function(_) { - return arguments.length ? (deltaLambda = _[0] % 360 * radians, deltaPhi = _[1] % 360 * radians, deltaGamma = _.length > 2 ? _[2] % 360 * radians : 0, recenter()) : [deltaLambda * degrees$1, deltaPhi * degrees$1, deltaGamma * degrees$1]; - }; + projection.center = function(_) { + return arguments.length ? (lambda = _[0] % 360 * radians, phi = _[1] % 360 * radians, recenter()) : [lambda * degrees$1, phi * degrees$1]; + }; - projection.precision = function(_) { - return arguments.length ? (projectResample = resample(projectTransform, delta2 = _ * _), reset()) : sqrt$1(delta2); - }; + projection.rotate = function(_) { + return arguments.length ? (deltaLambda = _[0] % 360 * radians, deltaPhi = _[1] % 360 * radians, deltaGamma = _.length > 2 ? _[2] % 360 * radians : 0, recenter()) : [deltaLambda * degrees$1, deltaPhi * degrees$1, deltaGamma * degrees$1]; + }; - projection.fitExtent = fitExtent(projection); + projection.precision = function(_) { + return arguments.length ? (projectResample = resample(projectTransform, delta2 = _ * _), reset()) : sqrt$1(delta2); + }; - projection.fitSize = fitSize(projection); + projection.fitExtent = fitExtent(projection); - function recenter() { - projectRotate = compose(rotate = rotateRadians(deltaLambda, deltaPhi, deltaGamma), project); - var center = project(lambda, phi); - dx = x - center[0] * k; - dy = y + center[1] * k; - return reset(); - } + projection.fitSize = fitSize(projection); - function reset() { - cache = cacheStream = null; - return projection; - } + function recenter() { + projectRotate = compose(rotate = rotateRadians(deltaLambda, deltaPhi, deltaGamma), project); + var center = project(lambda, phi); + dx = x - center[0] * k; + dy = y + center[1] * k; + return reset(); + } - return function() { - project = projectAt.apply(this, arguments); - projection.invert = project.invert && invert; - return recenter(); - }; + function reset() { + cache = cacheStream = null; + return projection; } - function conicProjection(projectAt) { - var phi0 = 0, - phi1 = pi$4 / 3, - m = projectionMutator(projectAt), - p = m(phi0, phi1); + return function() { + project = projectAt.apply(this, arguments); + projection.invert = project.invert && invert; + return recenter(); + }; +} - p.parallels = function(_) { - return arguments.length ? m(phi0 = _[0] * radians, phi1 = _[1] * radians) : [phi0 * degrees$1, phi1 * degrees$1]; - }; +function conicProjection(projectAt) { + var phi0 = 0, + phi1 = pi$4 / 3, + m = projectionMutator(projectAt), + p = m(phi0, phi1); - return p; + p.parallels = function(_) { + return arguments.length ? m(phi0 = _[0] * radians, phi1 = _[1] * radians) : [phi0 * degrees$1, phi1 * degrees$1]; + }; + + return p; +} + +function conicEqualAreaRaw(y0, y1) { + var sy0 = sin$1(y0), + n = (sy0 + sin$1(y1)) / 2, + c = 1 + sy0 * (2 * n - sy0), + r0 = sqrt$1(c) / n; + + function project(x, y) { + var r = sqrt$1(c - 2 * n * sin$1(y)) / n; + return [r * sin$1(x *= n), r0 - r * cos$1(x)]; } - function conicEqualAreaRaw(y0, y1) { - var sy0 = sin$1(y0), - n = (sy0 + sin$1(y1)) / 2, - c = 1 + sy0 * (2 * n - sy0), - r0 = sqrt$1(c) / n; + project.invert = function(x, y) { + var r0y = r0 - y; + return [atan2(x, r0y) / n, asin$1((c - (x * x + r0y * r0y) * n * n) / (2 * n))]; + }; - function project(x, y) { - var r = sqrt$1(c - 2 * n * sin$1(y)) / n; - return [r * sin$1(x *= n), r0 - r * cos$1(x)]; - } + return project; +} - project.invert = function(x, y) { - var r0y = r0 - y; - return [atan2(x, r0y) / n, asin$1((c - (x * x + r0y * r0y) * n * n) / (2 * n))]; - }; +var conicEqualArea = function() { + return conicProjection(conicEqualAreaRaw) + .scale(155.424) + .center([0, 33.6442]); +} - return project; - } +var albers = function() { + return conicEqualArea() + .parallels([29.5, 45.5]) + .scale(1070) + .translate([480, 250]) + .rotate([96, 0]) + .center([-0.6, 38.7]); +} - function conicEqualArea() { - return conicProjection(conicEqualAreaRaw) - .scale(155.424) - .center([0, 33.6442]); - } +// The projections must have mutually exclusive clip regions on the sphere, +// as this will avoid emitting interleaving lines and polygons. +function multiplex(streams) { + var n = streams.length; + return { + point: function(x, y) { var i = -1; while (++i < n) streams[i].point(x, y); }, + sphere: function() { var i = -1; while (++i < n) streams[i].sphere(); }, + lineStart: function() { var i = -1; while (++i < n) streams[i].lineStart(); }, + lineEnd: function() { var i = -1; while (++i < n) streams[i].lineEnd(); }, + polygonStart: function() { var i = -1; while (++i < n) streams[i].polygonStart(); }, + polygonEnd: function() { var i = -1; while (++i < n) streams[i].polygonEnd(); } + }; +} - function albers() { - return conicEqualArea() - .parallels([29.5, 45.5]) - .scale(1070) - .translate([480, 250]) - .rotate([96, 0]) - .center([-0.6, 38.7]); - } +// A composite projection for the United States, configured by default for +// 960×500. The projection also works quite well at 960×600 if you change the +// scale to 1285 and adjust the translate accordingly. The set of standard +// parallels for each region comes from USGS, which is published here: +// http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers +var albersUsa = function() { + var cache, + cacheStream, + lower48 = albers(), lower48Point, + alaska = conicEqualArea().rotate([154, 0]).center([-2, 58.5]).parallels([55, 65]), alaskaPoint, // EPSG:3338 + hawaii = conicEqualArea().rotate([157, 0]).center([-3, 19.9]).parallels([8, 18]), hawaiiPoint, // ESRI:102007 + point, pointStream = {point: function(x, y) { point = [x, y]; }}; - // The projections must have mutually exclusive clip regions on the sphere, - // as this will avoid emitting interleaving lines and polygons. - function multiplex(streams) { - var n = streams.length; - return { - point: function(x, y) { var i = -1; while (++i < n) streams[i].point(x, y); }, - sphere: function() { var i = -1; while (++i < n) streams[i].sphere(); }, - lineStart: function() { var i = -1; while (++i < n) streams[i].lineStart(); }, - lineEnd: function() { var i = -1; while (++i < n) streams[i].lineEnd(); }, - polygonStart: function() { var i = -1; while (++i < n) streams[i].polygonStart(); }, - polygonEnd: function() { var i = -1; while (++i < n) streams[i].polygonEnd(); } - }; + function albersUsa(coordinates) { + var x = coordinates[0], y = coordinates[1]; + return point = null, + (lower48Point.point(x, y), point) + || (alaskaPoint.point(x, y), point) + || (hawaiiPoint.point(x, y), point); } - // A composite projection for the United States, configured by default for - // 960×500. The projection also works quite well at 960×600 if you change the - // scale to 1285 and adjust the translate accordingly. The set of standard - // parallels for each region comes from USGS, which is published here: - // http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers - function albersUsa() { - var cache, - cacheStream, - lower48 = albers(), lower48Point, - alaska = conicEqualArea().rotate([154, 0]).center([-2, 58.5]).parallels([55, 65]), alaskaPoint, // EPSG:3338 - hawaii = conicEqualArea().rotate([157, 0]).center([-3, 19.9]).parallels([8, 18]), hawaiiPoint, // ESRI:102007 - point, pointStream = {point: function(x, y) { point = [x, y]; }}; + albersUsa.invert = function(coordinates) { + var k = lower48.scale(), + t = lower48.translate(), + x = (coordinates[0] - t[0]) / k, + y = (coordinates[1] - t[1]) / k; + return (y >= 0.120 && y < 0.234 && x >= -0.425 && x < -0.214 ? alaska + : y >= 0.166 && y < 0.234 && x >= -0.214 && x < -0.115 ? hawaii + : lower48).invert(coordinates); + }; - function albersUsa(coordinates) { - var x = coordinates[0], y = coordinates[1]; - return point = null, - (lower48Point.point(x, y), point) - || (alaskaPoint.point(x, y), point) - || (hawaiiPoint.point(x, y), point); - } + albersUsa.stream = function(stream) { + return cache && cacheStream === stream ? cache : cache = multiplex([lower48.stream(cacheStream = stream), alaska.stream(stream), hawaii.stream(stream)]); + }; - albersUsa.invert = function(coordinates) { - var k = lower48.scale(), - t = lower48.translate(), - x = (coordinates[0] - t[0]) / k, - y = (coordinates[1] - t[1]) / k; - return (y >= 0.120 && y < 0.234 && x >= -0.425 && x < -0.214 ? alaska - : y >= 0.166 && y < 0.234 && x >= -0.214 && x < -0.115 ? hawaii - : lower48).invert(coordinates); - }; + albersUsa.precision = function(_) { + if (!arguments.length) return lower48.precision(); + lower48.precision(_), alaska.precision(_), hawaii.precision(_); + return albersUsa; + }; - albersUsa.stream = function(stream) { - return cache && cacheStream === stream ? cache : cache = multiplex([lower48.stream(cacheStream = stream), alaska.stream(stream), hawaii.stream(stream)]); - }; + albersUsa.scale = function(_) { + if (!arguments.length) return lower48.scale(); + lower48.scale(_), alaska.scale(_ * 0.35), hawaii.scale(_); + return albersUsa.translate(lower48.translate()); + }; - albersUsa.precision = function(_) { - if (!arguments.length) return lower48.precision(); - lower48.precision(_), alaska.precision(_), hawaii.precision(_); - return albersUsa; - }; + albersUsa.translate = function(_) { + if (!arguments.length) return lower48.translate(); + var k = lower48.scale(), x = +_[0], y = +_[1]; - albersUsa.scale = function(_) { - if (!arguments.length) return lower48.scale(); - lower48.scale(_), alaska.scale(_ * 0.35), hawaii.scale(_); - return albersUsa.translate(lower48.translate()); - }; + lower48Point = lower48 + .translate(_) + .clipExtent([[x - 0.455 * k, y - 0.238 * k], [x + 0.455 * k, y + 0.238 * k]]) + .stream(pointStream); - albersUsa.translate = function(_) { - if (!arguments.length) return lower48.translate(); - var k = lower48.scale(), x = +_[0], y = +_[1]; + alaskaPoint = alaska + .translate([x - 0.307 * k, y + 0.201 * k]) + .clipExtent([[x - 0.425 * k + epsilon$4, y + 0.120 * k + epsilon$4], [x - 0.214 * k - epsilon$4, y + 0.234 * k - epsilon$4]]) + .stream(pointStream); - lower48Point = lower48 - .translate(_) - .clipExtent([[x - 0.455 * k, y - 0.238 * k], [x + 0.455 * k, y + 0.238 * k]]) - .stream(pointStream); + hawaiiPoint = hawaii + .translate([x - 0.205 * k, y + 0.212 * k]) + .clipExtent([[x - 0.214 * k + epsilon$4, y + 0.166 * k + epsilon$4], [x - 0.115 * k - epsilon$4, y + 0.234 * k - epsilon$4]]) + .stream(pointStream); - alaskaPoint = alaska - .translate([x - 0.307 * k, y + 0.201 * k]) - .clipExtent([[x - 0.425 * k + epsilon$4, y + 0.120 * k + epsilon$4], [x - 0.214 * k - epsilon$4, y + 0.234 * k - epsilon$4]]) - .stream(pointStream); + return albersUsa; + }; - hawaiiPoint = hawaii - .translate([x - 0.205 * k, y + 0.212 * k]) - .clipExtent([[x - 0.214 * k + epsilon$4, y + 0.166 * k + epsilon$4], [x - 0.115 * k - epsilon$4, y + 0.234 * k - epsilon$4]]) - .stream(pointStream); + albersUsa.fitExtent = fitExtent(albersUsa); - return albersUsa; - }; + albersUsa.fitSize = fitSize(albersUsa); - albersUsa.fitExtent = fitExtent(albersUsa); + return albersUsa.scale(1070); +} - albersUsa.fitSize = fitSize(albersUsa); - - return albersUsa.scale(1070); +function azimuthalRaw(scale) { + return function(x, y) { + var cx = cos$1(x), + cy = cos$1(y), + k = scale(cx * cy); + return [ + k * cy * sin$1(x), + k * sin$1(y) + ]; } +} - function azimuthalRaw(scale) { - return function(x, y) { - var cx = cos$1(x), - cy = cos$1(y), - k = scale(cx * cy); - return [ - k * cy * sin$1(x), - k * sin$1(y) - ]; - } +function azimuthalInvert(angle) { + return function(x, y) { + var z = sqrt$1(x * x + y * y), + c = angle(z), + sc = sin$1(c), + cc = cos$1(c); + return [ + atan2(x * sc, z * cc), + asin$1(z && y * sc / z) + ]; } +} - function azimuthalInvert(angle) { - return function(x, y) { - var z = sqrt$1(x * x + y * y), - c = angle(z), - sc = sin$1(c), - cc = cos$1(c); - return [ - atan2(x * sc, z * cc), - asin$1(z && y * sc / z) - ]; - } - } +var azimuthalEqualAreaRaw = azimuthalRaw(function(cxcy) { + return sqrt$1(2 / (1 + cxcy)); +}); - var azimuthalEqualAreaRaw = azimuthalRaw(function(cxcy) { - return sqrt$1(2 / (1 + cxcy)); - }); +azimuthalEqualAreaRaw.invert = azimuthalInvert(function(z) { + return 2 * asin$1(z / 2); +}); - azimuthalEqualAreaRaw.invert = azimuthalInvert(function(z) { - return 2 * asin$1(z / 2); - }); +var azimuthalEqualArea = function() { + return projection(azimuthalEqualAreaRaw) + .scale(124.75) + .clipAngle(180 - 1e-3); +} - function azimuthalEqualArea() { - return projection(azimuthalEqualAreaRaw) - .scale(124.75) - .clipAngle(180 - 1e-3); - } +var azimuthalEquidistantRaw = azimuthalRaw(function(c) { + return (c = acos(c)) && c / sin$1(c); +}); - var azimuthalEquidistantRaw = azimuthalRaw(function(c) { - return (c = acos(c)) && c / sin$1(c); - }); +azimuthalEquidistantRaw.invert = azimuthalInvert(function(z) { + return z; +}); - azimuthalEquidistantRaw.invert = azimuthalInvert(function(z) { - return z; - }); +var azimuthalEquidistant = function() { + return projection(azimuthalEquidistantRaw) + .scale(79.4188) + .clipAngle(180 - 1e-3); +} - function azimuthalEquidistant() { - return projection(azimuthalEquidistantRaw) - .scale(79.4188) - .clipAngle(180 - 1e-3); - } +function mercatorRaw(lambda, phi) { + return [lambda, log$1(tan((halfPi$3 + phi) / 2))]; +} - function mercatorRaw(lambda, phi) { - return [lambda, log$1(tan((halfPi$3 + phi) / 2))]; - } +mercatorRaw.invert = function(x, y) { + return [x, 2 * atan(exp(y)) - halfPi$3]; +}; - mercatorRaw.invert = function(x, y) { - return [x, 2 * atan(exp(y)) - halfPi$3]; +var mercator = function() { + return mercatorProjection(mercatorRaw) + .scale(961 / tau$4); +} + +function mercatorProjection(project) { + var m = projection(project), + scale = m.scale, + translate = m.translate, + clipExtent = m.clipExtent, + clipAuto; + + m.scale = function(_) { + return arguments.length ? (scale(_), clipAuto && m.clipExtent(null), m) : scale(); }; - function mercator() { - return mercatorProjection(mercatorRaw) - .scale(961 / tau$4); - } + m.translate = function(_) { + return arguments.length ? (translate(_), clipAuto && m.clipExtent(null), m) : translate(); + }; - function mercatorProjection(project) { - var m = projection(project), - scale = m.scale, - translate = m.translate, - clipExtent = m.clipExtent, - clipAuto; + m.clipExtent = function(_) { + if (!arguments.length) return clipAuto ? null : clipExtent(); + if (clipAuto = _ == null) { + var k = pi$4 * scale(), + t = translate(); + _ = [[t[0] - k, t[1] - k], [t[0] + k, t[1] + k]]; + } + clipExtent(_); + return m; + }; - m.scale = function(_) { - return arguments.length ? (scale(_), clipAuto && m.clipExtent(null), m) : scale(); - }; + return m.clipExtent(null); +} - m.translate = function(_) { - return arguments.length ? (translate(_), clipAuto && m.clipExtent(null), m) : translate(); - }; +function tany(y) { + return tan((halfPi$3 + y) / 2); +} - m.clipExtent = function(_) { - if (!arguments.length) return clipAuto ? null : clipExtent(); - if (clipAuto = _ == null) { - var k = pi$4 * scale(), - t = translate(); - _ = [[t[0] - k, t[1] - k], [t[0] + k, t[1] + k]]; - } - clipExtent(_); - return m; - }; +function conicConformalRaw(y0, y1) { + var cy0 = cos$1(y0), + n = y0 === y1 ? sin$1(y0) : log$1(cy0 / cos$1(y1)) / log$1(tany(y1) / tany(y0)), + f = cy0 * pow$1(tany(y0), n) / n; - return m.clipExtent(null); - } + if (!n) return mercatorRaw; - function tany(y) { - return tan((halfPi$3 + y) / 2); + function project(x, y) { + if (f > 0) { if (y < -halfPi$3 + epsilon$4) y = -halfPi$3 + epsilon$4; } + else { if (y > halfPi$3 - epsilon$4) y = halfPi$3 - epsilon$4; } + var r = f / pow$1(tany(y), n); + return [r * sin$1(n * x), f - r * cos$1(n * x)]; } - function conicConformalRaw(y0, y1) { - var cy0 = cos$1(y0), - n = y0 === y1 ? sin$1(y0) : log$1(cy0 / cos$1(y1)) / log$1(tany(y1) / tany(y0)), - f = cy0 * pow$1(tany(y0), n) / n; + project.invert = function(x, y) { + var fy = f - y, r = sign$1(n) * sqrt$1(x * x + fy * fy); + return [atan2(x, fy) / n, 2 * atan(pow$1(f / r, 1 / n)) - halfPi$3]; + }; - if (!n) return mercatorRaw; + return project; +} - function project(x, y) { - if (f > 0) { if (y < -halfPi$3 + epsilon$4) y = -halfPi$3 + epsilon$4; } - else { if (y > halfPi$3 - epsilon$4) y = halfPi$3 - epsilon$4; } - var r = f / pow$1(tany(y), n); - return [r * sin$1(n * x), f - r * cos$1(n * x)]; - } +var conicConformal = function() { + return conicProjection(conicConformalRaw) + .scale(109.5) + .parallels([30, 30]); +} - project.invert = function(x, y) { - var fy = f - y, r = sign$1(n) * sqrt$1(x * x + fy * fy); - return [atan2(x, fy) / n, 2 * atan(pow$1(f / r, 1 / n)) - halfPi$3]; - }; +function equirectangularRaw(lambda, phi) { + return [lambda, phi]; +} - return project; - } +equirectangularRaw.invert = equirectangularRaw; - function conicConformal() { - return conicProjection(conicConformalRaw) - .scale(109.5) - .parallels([30, 30]); - } +var equirectangular = function() { + return projection(equirectangularRaw) + .scale(152.63); +} - function equirectangularRaw(lambda, phi) { - return [lambda, phi]; - } +function conicEquidistantRaw(y0, y1) { + var cy0 = cos$1(y0), + n = y0 === y1 ? sin$1(y0) : (cy0 - cos$1(y1)) / (y1 - y0), + g = cy0 / n + y0; - equirectangularRaw.invert = equirectangularRaw; + if (abs(n) < epsilon$4) return equirectangularRaw; - function equirectangular() { - return projection(equirectangularRaw) - .scale(152.63); + function project(x, y) { + var gy = g - y, nx = n * x; + return [gy * sin$1(nx), g - gy * cos$1(nx)]; } - function conicEquidistantRaw(y0, y1) { - var cy0 = cos$1(y0), - n = y0 === y1 ? sin$1(y0) : (cy0 - cos$1(y1)) / (y1 - y0), - g = cy0 / n + y0; + project.invert = function(x, y) { + var gy = g - y; + return [atan2(x, gy) / n, g - sign$1(n) * sqrt$1(x * x + gy * gy)]; + }; - if (abs(n) < epsilon$4) return equirectangularRaw; + return project; +} - function project(x, y) { - var gy = g - y, nx = n * x; - return [gy * sin$1(nx), g - gy * cos$1(nx)]; - } +var conicEquidistant = function() { + return conicProjection(conicEquidistantRaw) + .scale(131.154) + .center([0, 13.9389]); +} - project.invert = function(x, y) { - var gy = g - y; - return [atan2(x, gy) / n, g - sign$1(n) * sqrt$1(x * x + gy * gy)]; - }; +function gnomonicRaw(x, y) { + var cy = cos$1(y), k = cos$1(x) * cy; + return [cy * sin$1(x) / k, sin$1(y) / k]; +} - return project; - } +gnomonicRaw.invert = azimuthalInvert(atan); - function conicEquidistant() { - return conicProjection(conicEquidistantRaw) - .scale(131.154) - .center([0, 13.9389]); - } +var gnomonic = function() { + return projection(gnomonicRaw) + .scale(144.049) + .clipAngle(60); +} - function gnomonicRaw(x, y) { - var cy = cos$1(y), k = cos$1(x) * cy; - return [cy * sin$1(x) / k, sin$1(y) / k]; - } +function orthographicRaw(x, y) { + return [cos$1(y) * sin$1(x), sin$1(y)]; +} - gnomonicRaw.invert = azimuthalInvert(atan); +orthographicRaw.invert = azimuthalInvert(asin$1); - function gnomonic() { - return projection(gnomonicRaw) - .scale(144.049) - .clipAngle(60); - } +var orthographic = function() { + return projection(orthographicRaw) + .scale(249.5) + .clipAngle(90 + epsilon$4); +} - function orthographicRaw(x, y) { - return [cos$1(y) * sin$1(x), sin$1(y)]; - } +function stereographicRaw(x, y) { + var cy = cos$1(y), k = 1 + cos$1(x) * cy; + return [cy * sin$1(x) / k, sin$1(y) / k]; +} - orthographicRaw.invert = azimuthalInvert(asin$1); +stereographicRaw.invert = azimuthalInvert(function(z) { + return 2 * atan(z); +}); - function orthographic() { - return projection(orthographicRaw) - .scale(249.5) - .clipAngle(90 + epsilon$4); - } +var stereographic = function() { + return projection(stereographicRaw) + .scale(250) + .clipAngle(142); +} - function stereographicRaw(x, y) { - var cy = cos$1(y), k = 1 + cos$1(x) * cy; - return [cy * sin$1(x) / k, sin$1(y) / k]; - } +function transverseMercatorRaw(lambda, phi) { + return [log$1(tan((halfPi$3 + phi) / 2)), -lambda]; +} - stereographicRaw.invert = azimuthalInvert(function(z) { - return 2 * atan(z); - }); +transverseMercatorRaw.invert = function(x, y) { + return [-y, 2 * atan(exp(x)) - halfPi$3]; +}; - function stereographic() { - return projection(stereographicRaw) - .scale(250) - .clipAngle(142); - } +var transverseMercator = function() { + var m = mercatorProjection(transverseMercatorRaw), + center = m.center, + rotate = m.rotate; - function transverseMercatorRaw(lambda, phi) { - return [log$1(tan((halfPi$3 + phi) / 2)), -lambda]; - } + m.center = function(_) { + return arguments.length ? center([-_[1], _[0]]) : (_ = center(), [_[1], -_[0]]); + }; - transverseMercatorRaw.invert = function(x, y) { - return [-y, 2 * atan(exp(x)) - halfPi$3]; + m.rotate = function(_) { + return arguments.length ? rotate([_[0], _[1], _.length > 2 ? _[2] + 90 : 90]) : (_ = rotate(), [_[0], _[1], _[2] - 90]); }; - function transverseMercator() { - var m = mercatorProjection(transverseMercatorRaw), - center = m.center, - rotate = m.rotate; + return rotate([0, 0, 90]) + .scale(159.155); +} - m.center = function(_) { - return arguments.length ? center([-_[1], _[0]]) : (_ = center(), [_[1], -_[0]]); - }; +exports.version = version; +exports.bisect = bisectRight; +exports.bisectRight = bisectRight; +exports.bisectLeft = bisectLeft; +exports.ascending = ascending; +exports.bisector = bisector; +exports.descending = descending; +exports.deviation = deviation; +exports.extent = extent; +exports.histogram = histogram; +exports.thresholdFreedmanDiaconis = freedmanDiaconis; +exports.thresholdScott = scott; +exports.thresholdSturges = sturges; +exports.max = max; +exports.mean = mean; +exports.median = median; +exports.merge = merge; +exports.min = min; +exports.pairs = pairs; +exports.permute = permute; +exports.quantile = threshold; +exports.range = range; +exports.scan = scan; +exports.shuffle = shuffle; +exports.sum = sum; +exports.ticks = ticks; +exports.tickStep = tickStep; +exports.transpose = transpose; +exports.variance = variance; +exports.zip = zip; +exports.entries = entries; +exports.keys = keys; +exports.values = values; +exports.map = map$1; +exports.set = set; +exports.nest = nest; +exports.randomUniform = uniform; +exports.randomNormal = normal; +exports.randomLogNormal = logNormal; +exports.randomBates = bates; +exports.randomIrwinHall = irwinHall; +exports.randomExponential = exponential; +exports.easeLinear = linear; +exports.easeQuad = quadInOut; +exports.easeQuadIn = quadIn; +exports.easeQuadOut = quadOut; +exports.easeQuadInOut = quadInOut; +exports.easeCubic = cubicInOut; +exports.easeCubicIn = cubicIn; +exports.easeCubicOut = cubicOut; +exports.easeCubicInOut = cubicInOut; +exports.easePoly = polyInOut; +exports.easePolyIn = polyIn; +exports.easePolyOut = polyOut; +exports.easePolyInOut = polyInOut; +exports.easeSin = sinInOut; +exports.easeSinIn = sinIn; +exports.easeSinOut = sinOut; +exports.easeSinInOut = sinInOut; +exports.easeExp = expInOut; +exports.easeExpIn = expIn; +exports.easeExpOut = expOut; +exports.easeExpInOut = expInOut; +exports.easeCircle = circleInOut; +exports.easeCircleIn = circleIn; +exports.easeCircleOut = circleOut; +exports.easeCircleInOut = circleInOut; +exports.easeBounce = bounceOut; +exports.easeBounceIn = bounceIn; +exports.easeBounceOut = bounceOut; +exports.easeBounceInOut = bounceInOut; +exports.easeBack = backInOut; +exports.easeBackIn = backIn; +exports.easeBackOut = backOut; +exports.easeBackInOut = backInOut; +exports.easeElastic = elasticOut; +exports.easeElasticIn = elasticIn; +exports.easeElasticOut = elasticOut; +exports.easeElasticInOut = elasticInOut; +exports.polygonArea = area; +exports.polygonCentroid = centroid; +exports.polygonHull = hull; +exports.polygonContains = contains; +exports.polygonLength = length$1; +exports.path = path; +exports.quadtree = quadtree; +exports.queue = queue; +exports.arc = arc; +exports.area = area$1; +exports.line = line; +exports.pie = pie; +exports.radialArea = radialArea; +exports.radialLine = radialLine$1; +exports.symbol = symbol; +exports.symbols = symbols; +exports.symbolCircle = circle; +exports.symbolCross = cross$1; +exports.symbolDiamond = diamond; +exports.symbolSquare = square; +exports.symbolStar = star; +exports.symbolTriangle = triangle; +exports.symbolWye = wye; +exports.curveBasisClosed = basisClosed; +exports.curveBasisOpen = basisOpen; +exports.curveBasis = basis; +exports.curveBundle = bundle; +exports.curveCardinalClosed = cardinalClosed; +exports.curveCardinalOpen = cardinalOpen; +exports.curveCardinal = cardinal; +exports.curveCatmullRomClosed = catmullRomClosed; +exports.curveCatmullRomOpen = catmullRomOpen; +exports.curveCatmullRom = catmullRom; +exports.curveLinearClosed = linearClosed; +exports.curveLinear = curveLinear; +exports.curveMonotoneX = monotoneX; +exports.curveMonotoneY = monotoneY; +exports.curveNatural = natural; +exports.curveStep = step; +exports.curveStepAfter = stepAfter; +exports.curveStepBefore = stepBefore; +exports.stack = stack; +exports.stackOffsetExpand = expand; +exports.stackOffsetNone = none; +exports.stackOffsetSilhouette = silhouette; +exports.stackOffsetWiggle = wiggle; +exports.stackOrderAscending = ascending$1; +exports.stackOrderDescending = descending$2; +exports.stackOrderInsideOut = insideOut; +exports.stackOrderNone = none$1; +exports.stackOrderReverse = reverse; +exports.color = color; +exports.rgb = rgb; +exports.hsl = hsl; +exports.lab = lab; +exports.hcl = hcl; +exports.cubehelix = cubehelix; +exports.interpolate = interpolate; +exports.interpolateArray = array$1; +exports.interpolateDate = date; +exports.interpolateNumber = interpolateNumber; +exports.interpolateObject = object; +exports.interpolateRound = interpolateRound; +exports.interpolateString = interpolateString; +exports.interpolateTransformCss = interpolateTransformCss; +exports.interpolateTransformSvg = interpolateTransformSvg; +exports.interpolateZoom = interpolateZoom; +exports.interpolateRgb = interpolateRgb; +exports.interpolateRgbBasis = rgbBasis; +exports.interpolateRgbBasisClosed = rgbBasisClosed; +exports.interpolateHsl = hsl$2; +exports.interpolateHslLong = hslLong; +exports.interpolateLab = lab$1; +exports.interpolateHcl = hcl$2; +exports.interpolateHclLong = hclLong; +exports.interpolateCubehelix = cubehelix$2; +exports.interpolateCubehelixLong = cubehelixLong; +exports.interpolateBasis = basis$2; +exports.interpolateBasisClosed = basisClosed$1; +exports.quantize = quantize; +exports.dispatch = dispatch; +exports.dsvFormat = dsv; +exports.csvParse = csvParse; +exports.csvParseRows = csvParseRows; +exports.csvFormat = csvFormat; +exports.csvFormatRows = csvFormatRows; +exports.tsvParse = tsvParse; +exports.tsvParseRows = tsvParseRows; +exports.tsvFormat = tsvFormat; +exports.tsvFormatRows = tsvFormatRows; +exports.request = request; +exports.html = html; +exports.json = json; +exports.text = text; +exports.xml = xml; +exports.csv = csv$1; +exports.tsv = tsv$1; +exports.now = now; +exports.timer = timer; +exports.timerFlush = timerFlush; +exports.timeout = timeout$1; +exports.interval = interval$1; +exports.timeInterval = newInterval; +exports.timeMillisecond = millisecond; +exports.timeMilliseconds = milliseconds; +exports.timeSecond = second; +exports.timeSeconds = seconds; +exports.timeMinute = minute; +exports.timeMinutes = minutes; +exports.timeHour = hour; +exports.timeHours = hours; +exports.timeDay = day; +exports.timeDays = days; +exports.timeWeek = sunday; +exports.timeWeeks = sundays; +exports.timeSunday = sunday; +exports.timeSundays = sundays; +exports.timeMonday = monday; +exports.timeMondays = mondays; +exports.timeTuesday = tuesday; +exports.timeTuesdays = tuesdays; +exports.timeWednesday = wednesday; +exports.timeWednesdays = wednesdays; +exports.timeThursday = thursday; +exports.timeThursdays = thursdays; +exports.timeFriday = friday; +exports.timeFridays = fridays; +exports.timeSaturday = saturday; +exports.timeSaturdays = saturdays; +exports.timeMonth = month; +exports.timeMonths = months; +exports.timeYear = year; +exports.timeYears = years; +exports.utcMillisecond = millisecond; +exports.utcMilliseconds = milliseconds; +exports.utcSecond = second; +exports.utcSeconds = seconds; +exports.utcMinute = utcMinute; +exports.utcMinutes = utcMinutes; +exports.utcHour = utcHour; +exports.utcHours = utcHours; +exports.utcDay = utcDay; +exports.utcDays = utcDays; +exports.utcWeek = utcSunday; +exports.utcWeeks = utcSundays; +exports.utcSunday = utcSunday; +exports.utcSundays = utcSundays; +exports.utcMonday = utcMonday; +exports.utcMondays = utcMondays; +exports.utcTuesday = utcTuesday; +exports.utcTuesdays = utcTuesdays; +exports.utcWednesday = utcWednesday; +exports.utcWednesdays = utcWednesdays; +exports.utcThursday = utcThursday; +exports.utcThursdays = utcThursdays; +exports.utcFriday = utcFriday; +exports.utcFridays = utcFridays; +exports.utcSaturday = utcSaturday; +exports.utcSaturdays = utcSaturdays; +exports.utcMonth = utcMonth; +exports.utcMonths = utcMonths; +exports.utcYear = utcYear; +exports.utcYears = utcYears; +exports.formatLocale = formatLocale; +exports.formatDefaultLocale = defaultLocale; +exports.formatSpecifier = formatSpecifier; +exports.precisionFixed = precisionFixed; +exports.precisionPrefix = precisionPrefix; +exports.precisionRound = precisionRound; +exports.isoFormat = formatIso; +exports.isoParse = parseIso; +exports.timeFormatLocale = formatLocale$1; +exports.timeFormatDefaultLocale = defaultLocale$1; +exports.scaleBand = band; +exports.scalePoint = point$4; +exports.scaleIdentity = identity$4; +exports.scaleLinear = linear$2; +exports.scaleLog = log; +exports.scaleOrdinal = ordinal; +exports.scaleImplicit = implicit; +exports.scalePow = pow; +exports.scaleSqrt = sqrt; +exports.scaleQuantile = quantile$$1; +exports.scaleQuantize = quantize$1; +exports.scaleThreshold = threshold$1; +exports.scaleTime = time; +exports.scaleUtc = utcTime; +exports.schemeCategory10 = category10; +exports.schemeCategory20b = category20b; +exports.schemeCategory20c = category20c; +exports.schemeCategory20 = category20; +exports.scaleSequential = sequential; +exports.interpolateCubehelixDefault = cubehelix$3; +exports.interpolateRainbow = rainbow$1; +exports.interpolateWarm = warm; +exports.interpolateCool = cool; +exports.interpolateViridis = viridis; +exports.interpolateMagma = magma; +exports.interpolateInferno = inferno; +exports.interpolatePlasma = plasma; +exports.creator = creator; +exports.customEvent = customEvent; +exports.local = local; +exports.matcher = matcher$1; +exports.mouse = mouse; +exports.namespace = namespace; +exports.namespaces = namespaces; +exports.select = select; +exports.selectAll = selectAll; +exports.selection = selection; +exports.selector = selector; +exports.selectorAll = selectorAll; +exports.touch = touch; +exports.touches = touches; +exports.window = window; +exports.active = active; +exports.interrupt = interrupt; +exports.transition = transition; +exports.axisTop = axisTop; +exports.axisRight = axisRight; +exports.axisBottom = axisBottom; +exports.axisLeft = axisLeft; +exports.cluster = cluster; +exports.hierarchy = hierarchy; +exports.pack = index; +exports.packSiblings = siblings; +exports.packEnclose = enclose; +exports.partition = partition; +exports.stratify = stratify; +exports.tree = tree; +exports.treemap = index$1; +exports.treemapBinary = binary; +exports.treemapDice = treemapDice; +exports.treemapSlice = treemapSlice; +exports.treemapSliceDice = sliceDice; +exports.treemapSquarify = squarify; +exports.treemapResquarify = resquarify; +exports.forceCenter = center$1; +exports.forceCollide = collide; +exports.forceLink = link; +exports.forceManyBody = manyBody; +exports.forceSimulation = simulation; +exports.forceX = x$3; +exports.forceY = y$3; +exports.drag = drag; +exports.dragDisable = dragDisable; +exports.dragEnable = yesdrag; +exports.voronoi = voronoi; +exports.zoom = zoom; +exports.zoomIdentity = identity$6; +exports.zoomTransform = transform; +exports.brush = brush; +exports.brushX = brushX; +exports.brushY = brushY; +exports.brushSelection = brushSelection; +exports.chord = chord; +exports.ribbon = ribbon; +exports.geoAlbers = albers; +exports.geoAlbersUsa = albersUsa; +exports.geoArea = area$2; +exports.geoAzimuthalEqualArea = azimuthalEqualArea; +exports.geoAzimuthalEqualAreaRaw = azimuthalEqualAreaRaw; +exports.geoAzimuthalEquidistant = azimuthalEquidistant; +exports.geoAzimuthalEquidistantRaw = azimuthalEquidistantRaw; +exports.geoBounds = bounds; +exports.geoCentroid = centroid$1; +exports.geoCircle = circle$1; +exports.geoClipExtent = extent$1; +exports.geoConicConformal = conicConformal; +exports.geoConicConformalRaw = conicConformalRaw; +exports.geoConicEqualArea = conicEqualArea; +exports.geoConicEqualAreaRaw = conicEqualAreaRaw; +exports.geoConicEquidistant = conicEquidistant; +exports.geoConicEquidistantRaw = conicEquidistantRaw; +exports.geoDistance = distance; +exports.geoEquirectangular = equirectangular; +exports.geoEquirectangularRaw = equirectangularRaw; +exports.geoGnomonic = gnomonic; +exports.geoGnomonicRaw = gnomonicRaw; +exports.geoGraticule = graticule; +exports.geoInterpolate = interpolate$2; +exports.geoLength = length$2; +exports.geoMercator = mercator; +exports.geoMercatorRaw = mercatorRaw; +exports.geoOrthographic = orthographic; +exports.geoOrthographicRaw = orthographicRaw; +exports.geoPath = index$3; +exports.geoProjection = projection; +exports.geoProjectionMutator = projectionMutator; +exports.geoRotation = rotation; +exports.geoStereographic = stereographic; +exports.geoStereographicRaw = stereographicRaw; +exports.geoStream = geoStream; +exports.geoTransform = transform$1; +exports.geoTransverseMercator = transverseMercator; +exports.geoTransverseMercatorRaw = transverseMercatorRaw; - m.rotate = function(_) { - return arguments.length ? rotate([_[0], _[1], _.length > 2 ? _[2] + 90 : 90]) : (_ = rotate(), [_[0], _[1], _[2] - 90]); - }; +Object.defineProperty(exports, '__esModule', { value: true }); - return rotate([0, 0, 90]) - .scale(159.155); - } - - exports.version = version; - exports.bisect = bisectRight; - exports.bisectRight = bisectRight; - exports.bisectLeft = bisectLeft; - exports.ascending = ascending; - exports.bisector = bisector; - exports.descending = descending; - exports.deviation = deviation; - exports.extent = extent; - exports.histogram = histogram; - exports.thresholdFreedmanDiaconis = freedmanDiaconis; - exports.thresholdScott = scott; - exports.thresholdSturges = sturges; - exports.max = max; - exports.mean = mean; - exports.median = median; - exports.merge = merge; - exports.min = min; - exports.pairs = pairs; - exports.permute = permute; - exports.quantile = threshold; - exports.range = range; - exports.scan = scan; - exports.shuffle = shuffle; - exports.sum = sum; - exports.ticks = ticks; - exports.tickStep = tickStep; - exports.transpose = transpose; - exports.variance = variance; - exports.zip = zip; - exports.entries = entries; - exports.keys = keys; - exports.values = values; - exports.map = map$1; - exports.set = set; - exports.nest = nest; - exports.randomUniform = uniform; - exports.randomNormal = normal; - exports.randomLogNormal = logNormal; - exports.randomBates = bates; - exports.randomIrwinHall = irwinHall; - exports.randomExponential = exponential; - exports.easeLinear = linear; - exports.easeQuad = quadInOut; - exports.easeQuadIn = quadIn; - exports.easeQuadOut = quadOut; - exports.easeQuadInOut = quadInOut; - exports.easeCubic = easeCubicInOut; - exports.easeCubicIn = cubicIn; - exports.easeCubicOut = cubicOut; - exports.easeCubicInOut = easeCubicInOut; - exports.easePoly = polyInOut; - exports.easePolyIn = polyIn; - exports.easePolyOut = polyOut; - exports.easePolyInOut = polyInOut; - exports.easeSin = sinInOut; - exports.easeSinIn = sinIn; - exports.easeSinOut = sinOut; - exports.easeSinInOut = sinInOut; - exports.easeExp = expInOut; - exports.easeExpIn = expIn; - exports.easeExpOut = expOut; - exports.easeExpInOut = expInOut; - exports.easeCircle = circleInOut; - exports.easeCircleIn = circleIn; - exports.easeCircleOut = circleOut; - exports.easeCircleInOut = circleInOut; - exports.easeBounce = bounceOut; - exports.easeBounceIn = bounceIn; - exports.easeBounceOut = bounceOut; - exports.easeBounceInOut = bounceInOut; - exports.easeBack = backInOut; - exports.easeBackIn = backIn; - exports.easeBackOut = backOut; - exports.easeBackInOut = backInOut; - exports.easeElastic = elasticOut; - exports.easeElasticIn = elasticIn; - exports.easeElasticOut = elasticOut; - exports.easeElasticInOut = elasticInOut; - exports.polygonArea = area; - exports.polygonCentroid = centroid; - exports.polygonHull = hull; - exports.polygonContains = contains; - exports.polygonLength = length$1; - exports.path = path; - exports.quadtree = quadtree; - exports.queue = queue; - exports.arc = arc; - exports.area = area$1; - exports.line = line; - exports.pie = pie; - exports.radialArea = radialArea; - exports.radialLine = radialLine$1; - exports.symbol = symbol; - exports.symbols = symbols; - exports.symbolCircle = circle; - exports.symbolCross = cross$1; - exports.symbolDiamond = diamond; - exports.symbolSquare = square; - exports.symbolStar = star; - exports.symbolTriangle = triangle; - exports.symbolWye = wye; - exports.curveBasisClosed = basisClosed; - exports.curveBasisOpen = basisOpen; - exports.curveBasis = basis; - exports.curveBundle = bundle; - exports.curveCardinalClosed = cardinalClosed; - exports.curveCardinalOpen = cardinalOpen; - exports.curveCardinal = cardinal; - exports.curveCatmullRomClosed = catmullRomClosed; - exports.curveCatmullRomOpen = catmullRomOpen; - exports.curveCatmullRom = catmullRom; - exports.curveLinearClosed = linearClosed; - exports.curveLinear = curveLinear; - exports.curveMonotoneX = monotoneX; - exports.curveMonotoneY = monotoneY; - exports.curveNatural = natural; - exports.curveStep = step; - exports.curveStepAfter = stepAfter; - exports.curveStepBefore = stepBefore; - exports.stack = stack; - exports.stackOffsetExpand = expand; - exports.stackOffsetNone = none; - exports.stackOffsetSilhouette = silhouette; - exports.stackOffsetWiggle = wiggle; - exports.stackOrderAscending = ascending$1; - exports.stackOrderDescending = descending$2; - exports.stackOrderInsideOut = insideOut; - exports.stackOrderNone = none$1; - exports.stackOrderReverse = reverse; - exports.color = color; - exports.rgb = colorRgb; - exports.hsl = colorHsl; - exports.lab = lab; - exports.hcl = colorHcl; - exports.cubehelix = cubehelix; - exports.interpolate = interpolate; - exports.interpolateArray = array$1; - exports.interpolateDate = date; - exports.interpolateNumber = interpolateNumber; - exports.interpolateObject = object; - exports.interpolateRound = interpolateRound; - exports.interpolateString = interpolateString; - exports.interpolateTransformCss = interpolateTransform$1; - exports.interpolateTransformSvg = interpolateTransform$2; - exports.interpolateZoom = interpolateZoom; - exports.interpolateRgb = interpolateRgb; - exports.interpolateRgbBasis = rgbBasis; - exports.interpolateRgbBasisClosed = rgbBasisClosed; - exports.interpolateHsl = hsl$1; - exports.interpolateHslLong = hslLong; - exports.interpolateLab = lab$1; - exports.interpolateHcl = hcl$1; - exports.interpolateHclLong = hclLong; - exports.interpolateCubehelix = cubehelix$2; - exports.interpolateCubehelixLong = interpolateCubehelixLong; - exports.interpolateBasis = basis$2; - exports.interpolateBasisClosed = basisClosed$1; - exports.quantize = quantize; - exports.dispatch = dispatch; - exports.dsvFormat = dsv; - exports.csvParse = csvParse; - exports.csvParseRows = csvParseRows; - exports.csvFormat = csvFormat; - exports.csvFormatRows = csvFormatRows; - exports.tsvParse = tsvParse; - exports.tsvParseRows = tsvParseRows; - exports.tsvFormat = tsvFormat; - exports.tsvFormatRows = tsvFormatRows; - exports.request = request; - exports.html = html; - exports.json = json; - exports.text = text; - exports.xml = xml; - exports.csv = csv$1; - exports.tsv = tsv$1; - exports.now = now; - exports.timer = timer; - exports.timerFlush = timerFlush; - exports.timeout = timeout$1; - exports.interval = interval$1; - exports.timeInterval = newInterval; - exports.timeMillisecond = millisecond; - exports.timeMilliseconds = milliseconds; - exports.timeSecond = second; - exports.timeSeconds = seconds; - exports.timeMinute = minute; - exports.timeMinutes = minutes; - exports.timeHour = hour; - exports.timeHours = hours; - exports.timeDay = day; - exports.timeDays = days; - exports.timeWeek = timeWeek; - exports.timeWeeks = sundays; - exports.timeSunday = timeWeek; - exports.timeSundays = sundays; - exports.timeMonday = timeMonday; - exports.timeMondays = mondays; - exports.timeTuesday = tuesday; - exports.timeTuesdays = tuesdays; - exports.timeWednesday = wednesday; - exports.timeWednesdays = wednesdays; - exports.timeThursday = thursday; - exports.timeThursdays = thursdays; - exports.timeFriday = friday; - exports.timeFridays = fridays; - exports.timeSaturday = saturday; - exports.timeSaturdays = saturdays; - exports.timeMonth = month; - exports.timeMonths = months; - exports.timeYear = year; - exports.timeYears = years; - exports.utcMillisecond = millisecond; - exports.utcMilliseconds = milliseconds; - exports.utcSecond = second; - exports.utcSeconds = seconds; - exports.utcMinute = utcMinute; - exports.utcMinutes = utcMinutes; - exports.utcHour = utcHour; - exports.utcHours = utcHours; - exports.utcDay = utcDay; - exports.utcDays = utcDays; - exports.utcWeek = utcWeek; - exports.utcWeeks = utcSundays; - exports.utcSunday = utcWeek; - exports.utcSundays = utcSundays; - exports.utcMonday = utcMonday; - exports.utcMondays = utcMondays; - exports.utcTuesday = utcTuesday; - exports.utcTuesdays = utcTuesdays; - exports.utcWednesday = utcWednesday; - exports.utcWednesdays = utcWednesdays; - exports.utcThursday = utcThursday; - exports.utcThursdays = utcThursdays; - exports.utcFriday = utcFriday; - exports.utcFridays = utcFridays; - exports.utcSaturday = utcSaturday; - exports.utcSaturdays = utcSaturdays; - exports.utcMonth = utcMonth; - exports.utcMonths = utcMonths; - exports.utcYear = utcYear; - exports.utcYears = utcYears; - exports.formatLocale = formatLocale; - exports.formatDefaultLocale = defaultLocale; - exports.formatSpecifier = formatSpecifier; - exports.precisionFixed = precisionFixed; - exports.precisionPrefix = precisionPrefix; - exports.precisionRound = precisionRound; - exports.isoFormat = formatIso; - exports.isoParse = parseIso; - exports.timeFormatLocale = formatLocale$1; - exports.timeFormatDefaultLocale = defaultLocale$1; - exports.scaleBand = band; - exports.scalePoint = point$4; - exports.scaleIdentity = identity$4; - exports.scaleLinear = linear$2; - exports.scaleLog = log; - exports.scaleOrdinal = ordinal; - exports.scaleImplicit = implicit; - exports.scalePow = pow; - exports.scaleSqrt = sqrt; - exports.scaleQuantile = quantile; - exports.scaleQuantize = quantize$1; - exports.scaleThreshold = threshold$1; - exports.scaleTime = time; - exports.scaleUtc = utcTime; - exports.schemeCategory10 = category10; - exports.schemeCategory20b = category20b; - exports.schemeCategory20c = category20c; - exports.schemeCategory20 = category20; - exports.scaleSequential = sequential; - exports.interpolateCubehelixDefault = cubehelix$3; - exports.interpolateRainbow = rainbow$1; - exports.interpolateWarm = warm; - exports.interpolateCool = cool; - exports.interpolateViridis = viridis; - exports.interpolateMagma = magma; - exports.interpolateInferno = inferno; - exports.interpolatePlasma = plasma; - exports.creator = creator; - exports.customEvent = customEvent; - exports.local = local; - exports.matcher = matcher$1; - exports.mouse = mouse; - exports.namespace = namespace; - exports.namespaces = namespaces; - exports.select = select; - exports.selectAll = selectAll; - exports.selection = selection; - exports.selector = selector; - exports.selectorAll = selectorAll; - exports.touch = touch; - exports.touches = touches; - exports.window = window; - exports.active = active; - exports.interrupt = interrupt; - exports.transition = transition; - exports.axisTop = axisTop; - exports.axisRight = axisRight; - exports.axisBottom = axisBottom; - exports.axisLeft = axisLeft; - exports.cluster = cluster; - exports.hierarchy = hierarchy; - exports.pack = index; - exports.packSiblings = siblings; - exports.packEnclose = enclose; - exports.partition = partition; - exports.stratify = stratify; - exports.tree = tree; - exports.treemap = index$1; - exports.treemapBinary = binary; - exports.treemapDice = treemapDice; - exports.treemapSlice = treemapSlice; - exports.treemapSliceDice = sliceDice; - exports.treemapSquarify = squarify; - exports.treemapResquarify = resquarify; - exports.forceCenter = center$1; - exports.forceCollide = collide; - exports.forceLink = link; - exports.forceManyBody = manyBody; - exports.forceSimulation = simulation; - exports.forceX = x$3; - exports.forceY = y$3; - exports.drag = drag; - exports.dragDisable = dragDisable; - exports.dragEnable = dragEnable; - exports.voronoi = voronoi; - exports.zoom = zoom; - exports.zoomIdentity = identity$6; - exports.zoomTransform = transform; - exports.brush = brush; - exports.brushX = brushX; - exports.brushY = brushY; - exports.brushSelection = brushSelection; - exports.chord = chord; - exports.ribbon = ribbon; - exports.geoAlbers = albers; - exports.geoAlbersUsa = albersUsa; - exports.geoArea = area$2; - exports.geoAzimuthalEqualArea = azimuthalEqualArea; - exports.geoAzimuthalEqualAreaRaw = azimuthalEqualAreaRaw; - exports.geoAzimuthalEquidistant = azimuthalEquidistant; - exports.geoAzimuthalEquidistantRaw = azimuthalEquidistantRaw; - exports.geoBounds = bounds; - exports.geoCentroid = centroid$1; - exports.geoCircle = circle$1; - exports.geoClipExtent = extent$1; - exports.geoConicConformal = conicConformal; - exports.geoConicConformalRaw = conicConformalRaw; - exports.geoConicEqualArea = conicEqualArea; - exports.geoConicEqualAreaRaw = conicEqualAreaRaw; - exports.geoConicEquidistant = conicEquidistant; - exports.geoConicEquidistantRaw = conicEquidistantRaw; - exports.geoDistance = distance; - exports.geoEquirectangular = equirectangular; - exports.geoEquirectangularRaw = equirectangularRaw; - exports.geoGnomonic = gnomonic; - exports.geoGnomonicRaw = gnomonicRaw; - exports.geoGraticule = graticule; - exports.geoInterpolate = interpolate$2; - exports.geoLength = length$2; - exports.geoMercator = mercator; - exports.geoMercatorRaw = mercatorRaw; - exports.geoOrthographic = orthographic; - exports.geoOrthographicRaw = orthographicRaw; - exports.geoPath = index$3; - exports.geoProjection = projection; - exports.geoProjectionMutator = projectionMutator; - exports.geoRotation = rotation; - exports.geoStereographic = stereographic; - exports.geoStereographicRaw = stereographicRaw; - exports.geoStream = geoStream; - exports.geoTransform = transform$1; - exports.geoTransverseMercator = transverseMercator; - exports.geoTransverseMercatorRaw = transverseMercatorRaw; - - Object.defineProperty(exports, '__esModule', { value: true }); - -}))); \ No newline at end of file +})));