doevisualizations
Version:
Data Visualization Library based on RequireJS and D3.js (v4+)
18 lines (14 loc) • 447 B
JavaScript
import {asin, sqrt} from "../math";
import {azimuthalRaw, azimuthalInvert} from "./azimuthal";
import projection from "./index";
export var azimuthalEqualAreaRaw = azimuthalRaw(function(cxcy) {
return sqrt(2 / (1 + cxcy));
});
azimuthalEqualAreaRaw.invert = azimuthalInvert(function(z) {
return 2 * asin(z / 2);
});
export default function() {
return projection(azimuthalEqualAreaRaw)
.scale(124.75)
.clipAngle(180 - 1e-3);
}