| 1 |
- define(["exports","./Matrix2-9aa31791","./when-4bbc8319","./RuntimeError-346a3079","./ComponentDatatype-93750d1a"],(function(t,e,i,a,o){"use strict";function r(t){this._ellipsoid=i.defaultValue(t,e.Ellipsoid.WGS84),this._semimajorAxis=this._ellipsoid.maximumRadius,this._oneOverSemimajorAxis=1/this._semimajorAxis}Object.defineProperties(r.prototype,{ellipsoid:{get:function(){return this._ellipsoid}}}),r.mercatorAngleToGeodeticLatitude=function(t){return o.CesiumMath.PI_OVER_TWO-2*Math.atan(Math.exp(-t))},r.geodeticLatitudeToMercatorAngle=function(t){t>r.MaximumLatitude?t=r.MaximumLatitude:t<-r.MaximumLatitude&&(t=-r.MaximumLatitude);var e=Math.sin(t);return.5*Math.log((1+e)/(1-e))},r.MaximumLatitude=r.mercatorAngleToGeodeticLatitude(Math.PI),r.prototype.project=function(t,a){var o=this._semimajorAxis,n=t.longitude*o,u=r.geodeticLatitudeToMercatorAngle(t.latitude)*o,d=t.height;return i.defined(a)?(a.x=n,a.y=u,a.z=d,a):new e.Cartesian3(n,u,d)},r.prototype.unproject=function(t,a){var o=this._oneOverSemimajorAxis,n=t.x*o,u=r.mercatorAngleToGeodeticLatitude(t.y*o),d=t.z;return i.defined(a)?(a.longitude=n,a.latitude=u,a.height=d,a):new e.Cartographic(n,u,d)},t.WebMercatorProjection=r}));
|
