define(["exports","./Matrix3-b6f074fa","./defaultValue-0a909f67","./Math-e97915da"],(function(t,e,i,o){"use strict";function a(t){this._ellipsoid=i.defaultValue(t,e.Ellipsoid.WGS84),this._semimajorAxis=this._ellipsoid.maximumRadius,this._oneOverSemimajorAxis=1/this._semimajorAxis}Object.defineProperties(a.prototype,{ellipsoid:{get:function(){return this._ellipsoid}}}),a.mercatorAngleToGeodeticLatitude=function(t){return o.CesiumMath.PI_OVER_TWO-2*Math.atan(Math.exp(-t))},a.geodeticLatitudeToMercatorAngle=function(t){t>a.MaximumLatitude?t=a.MaximumLatitude:t<-a.MaximumLatitude&&(t=-a.MaximumLatitude);const e=Math.sin(t);return.5*Math.log((1+e)/(1-e))},a.MaximumLatitude=a.mercatorAngleToGeodeticLatitude(Math.PI),a.prototype.project=function(t,o){const r=this._semimajorAxis,n=t.longitude*r,u=a.geodeticLatitudeToMercatorAngle(t.latitude)*r,d=t.height;return i.defined(o)?(o.x=n,o.y=u,o.z=d,o):new e.Cartesian3(n,u,d)},a.prototype.unproject=function(t,o){const r=this._oneOverSemimajorAxis,n=t.x*r,u=a.mercatorAngleToGeodeticLatitude(t.y*r),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=a}));
