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2 lines
1.2 KiB
2 lines
1.2 KiB
define(["exports","./Matrix2-47e98d76","./defaultValue-81eec7ed","./RuntimeError-8952249c","./ComponentDatatype-a15c9a19"],(function(t,e,i,o,a){"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 a.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);const e=Math.sin(t);return.5*Math.log((1+e)/(1-e))},r.MaximumLatitude=r.mercatorAngleToGeodeticLatitude(Math.PI),r.prototype.project=function(t,o){const a=this._semimajorAxis,n=t.longitude*a,u=r.geodeticLatitudeToMercatorAngle(t.latitude)*a,d=t.height;return i.defined(o)?(o.x=n,o.y=u,o.z=d,o):new e.Cartesian3(n,u,d)},r.prototype.unproject=function(t,o){const a=this._oneOverSemimajorAxis,n=t.x*a,u=r.mercatorAngleToGeodeticLatitude(t.y*a),d=t.z;return i.defined(o)?(o.longitude=n,o.latitude=u,o.height=d,o):new e.Cartographic(n,u,d)},t.WebMercatorProjection=r}));
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