Sha256: 19abec243a2930db9b9b8588ca8d7316aed2480801f095fcc3cb61e9fcebddc6
Contents?: true
Size: 403 Bytes
Versions: 4
Compression:
Stored size: 403 Bytes
Contents
function eckert3(λ, φ) {
var k = Math.sqrt(π * (4 + π));
return [
2 / k * λ * (1 + Math.sqrt(1 - 4 * φ * φ / (π * π))),
4 / k * φ
];
}
eckert3.invert = function(x, y) {
var k = Math.sqrt(π * (4 + π)) / 2;
return [
x * k / (1 + asqrt(1 - y * y * (4 + π) / (4 * π))),
y * k / 2
];
};
(d3.geo.eckert3 = function() { return projection(eckert3); }).raw = eckert3;
Version data entries
4 entries across 4 versions & 1 rubygems