Commit 8f17dacb authored by Michael Adair's avatar Michael Adair
Browse files

closes #45: use the k0 factor correctly

parent d252ff3e

lib/projCode/somerc.js

+1 −1
Original line number Diff line number Diff line
@@ -24,7 +24,7 @@ Proj4js.Proj.somerc = { 
    var flattening = 1 / invF;

    var e2 = 2 * flattening - Math.pow(flattening, 2);

    var e = this.e = Math.sqrt(e2);

    this.R = semiMajorAxis * Math.sqrt(1 - e2) / (1 - e2 * Math.pow(sinPhy0, 2.0));

    this.R = this.k0 * semiMajorAxis * Math.sqrt(1 - e2) / (1 - e2 * Math.pow(sinPhy0, 2.0));

    this.alpha = Math.sqrt(1 + e2 / (1 - e2) * Math.pow(Math.cos(phy0), 4.0));

    this.b0 = Math.asin(sinPhy0 / this.alpha);

    this.K = Math.log(Math.tan(Math.PI / 4.0 + this.b0 / 2.0))