Sha256: 0cbc3117e58e91d6246b9398ea99c51c05d46ea7ea9c47bf8f5eb416f54460eb
Contents?: true
Size: 654 Bytes
Versions: 4
Compression:
Stored size: 654 Bytes
Contents
import "projection";
import "parallel1";
import "sinusoidal";
function bonne(φ0) {
if (!φ0) return sinusoidal;
var cotφ0 = 1 / Math.tan(φ0);
function forward(λ, φ) {
var ρ = cotφ0 + φ0 - φ,
E = ρ ? λ * Math.cos(φ) / ρ : ρ;
return [
ρ * Math.sin(E),
cotφ0 - ρ * Math.cos(E)
];
}
forward.invert = function(x, y) {
var ρ = Math.sqrt(x * x + (y = cotφ0 - y) * y),
φ = cotφ0 + φ0 - ρ;
return [
ρ / Math.cos(φ) * Math.atan2(x, y),
φ
];
};
return forward;
}
(d3.geo.bonne = function() { return parallel1Projection(bonne).parallel(45); }).raw = bonne;
Version data entries
4 entries across 4 versions & 1 rubygems