L.CoordConver=function(){function a(b,c){var d=-100+2*b+3*c+.2*c*c+.1*b*c+.2*Math.sqrt(Math.abs(b)),d=d+2*(20*Math.sin(6*b*e)+20*Math.sin(2*b*e))/3,d=d+2*(20*Math.sin(c*e)+40*Math.sin(c/3*e))/3;return d+=2*(160*Math.sin(c/12*e)+320*Math.sin(c*e/30))/3}function f(b,c){var d=300+b+2*c+.1*b*b+.1*b*c+.1*Math.sqrt(Math.abs(b)),d=d+2*(20*Math.sin(6*b*e)+20*Math.sin(2*b*e))/3,d=d+2*(20*Math.sin(b*e)+40*Math.sin(b/3*e))/3;return d+=2*(150*Math.sin(b/12*e)+300*Math.sin(b/30*e))/3}this.getCorrdType=function(b){var c="wgs84";switch(b.split(".")[0]){case "Geoq":case "GaoDe":case "Google":c="gcj02";break;case "Baidu":c="bd09";break;case "OSM":case "TianDiTu":c="wgs84"}return c};this.bd09_To_gps84=function(b,c){var d=this.bd09_To_gcj02(b,c);return this.gcj02_To_gps84(d.lng,d.lat)};this.gps84_To_bd09=function(b,c){var d=this.gps84_To_gcj02(b,c);return this.gcj02_To_bd09(d.lng,d.lat)};this.gps84_To_gcj02=function(b,c){var d=a(b-105,c-35),k=f(b-105,c-35),l=c/180*e,g=Math.sin(l),g=1-n*g*g,m=Math.sqrt(g),d=180*d/(h*(1-n)/(g*m)*e),k=180*k/(h/m*Math.cos(l)*e);return{lng:b+k,lat:c+d}};this.gcj02_To_gps84=function(b,c){var d=a(b-105,c-35),k=f(b-105,c-35),l=c/180*e,g=Math.sin(l),g=1-n*g*g,m=Math.sqrt(g),d=180*d/(h*(1-n)/(g*m)*e),k=180*k/(h/m*Math.cos(l)*e);return{lng:2*b-(b+k),lat:2*c-(c+d)}};this.gcj02_To_bd09=function(b,c){var d=Math.sqrt(b*b+c*c)+2E-5*Math.sin(c*p),a=Math.atan2(c,b)+3E-6*Math.cos(b*p);return{lng:d*Math.cos(a)+.0065,lat:d*Math.sin(a)+.006}};this.bd09_To_gcj02=function(b,c){var d=b-.0065,a=c-.006,e=Math.sqrt(d*d+a*a)-2E-5*Math.sin(a*p),d=Math.atan2(a,d)-3E-6*Math.cos(d*p);return{lng:e*Math.cos(d),lat:e*Math.sin(d)}};var e=3.141592653589793,h=6378245,n=.006693421622965943,p=3E3*e/180};L.coordConver=function(){return new L.CoordConver};L.TileLayer.ChinaProvider.include({addTo:function(a){a.options.corrdType||(a.options.corrdType=this.options.corrdType);a.addLayer(this);return this}});L.tileLayer.chinaProvider=function(a,f){f=f||{};f.corrdType=L.coordConver().getCorrdType(a);return new L.TileLayer.ChinaProvider(a,f)};L.GridLayer.include({_setZoomTransform:function(a,f,e){var h=f;void 0!=h&&this.options&&("gcj02"==this.options.corrdType?h=L.coordConver().gps84_To_gcj02(f.lng,f.lat):"bd09"==this.options.corrdType&&(h=L.coordConver().gps84_To_bd09(f.lng,f.lat)));f=this._map.getZoomScale(e,a.zoom);e=a.origin.multiplyBy(f).subtract(this._map._getNewPixelOrigin(h,e)).round();L.Browser.any3d?L.DomUtil.setTransform(a.el,e,f):L.DomUtil.setPosition(a.el,e)},_getTiledPixelBounds:function(a){var f=a;void 0!=f&&this.options&&("gcj02"==this.options.corrdType?f=L.coordConver().gps84_To_gcj02(a.lng,a.lat):"bd09"==this.options.corrdType&&(f=L.coordConver().gps84_To_bd09(a.lng,a.lat)));a=this._map;var e=a._animatingZoom?Math.max(a._animateToZoom,a.getZoom()):a.getZoom(),e=a.getZoomScale(e,this._tileZoom),f=a.project(f,this._tileZoom).floor();a=a.getSize().divideBy(2*e);return new L.Bounds(f.subtract(a),f.add(a))}});
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