leaflet-tilelayer-wmts.js

L.TileLayer.WMTS=L.TileLayer.extend({defaultWmtsParams:{service:"WMTS",request:"GetTile",version:"1.0.0",layer:"",style:"",tilematrixSet:"",format:"image/jpeg"},initialize:function(e,t){this._url=e;var n=L.extend({},this.defaultWmtsParams),r=t.tileSize||this.options.tileSize;if(t.detectRetina&&L.Browser.retina){n.width=n.height=r*2}else{n.width=n.height=r}for(var i in t){if(!this.options.hasOwnProperty(i)&&i!="matrixIds"){n[i]=t[i]}}this.wmtsParams=n;this.matrixIds=t.matrixIds||this.getDefaultMatrix();L.setOptions(this,t)},onAdd:function(e){L.TileLayer.prototype.onAdd.call(this,e)},getTileUrl:function(e,t){var n=this._map;crs=n.options.crs;tileSize=this.options.tileSize;nwPoint=e.multiplyBy(tileSize);nwPoint.x+=1;nwPoint.y-=1;sePoint=nwPoint.add(new L.Point(tileSize,tileSize));nw=crs.project(n.unproject(nwPoint,t));se=crs.project(n.unproject(sePoint,t));tilewidth=se.x-nw.x;t=n.getZoom();ident=this.matrixIds[t].identifier;X0=this.matrixIds[t].topLeftCorner.lng;Y0=this.matrixIds[t].topLeftCorner.lat;tilecol=Math.floor((nw.x-X0)/tilewidth);tilerow=-Math.floor((nw.y-Y0)/tilewidth);url=L.Util.template(this._url,{s:this._getSubdomain(e)});return url+L.Util.getParamString(this.wmtsParams,url)+"&tilematrix="+ident+"&tilerow="+tilerow+"&tilecol="+tilecol},setParams:function(e,t){L.extend(this.wmtsParams,e);if(!t){this.redraw()}return this},getDefaultMatrix:function(){var e=new Array(22);for(var t=0;t<22;t++){e[t]={identifier:""+t,topLeftCorner:new L.LatLng(20037508.3428,-20037508.3428)}}return e}});L.tileLayer.wmts=function(e,t){return new L.TileLayer.WMTS(e,t)}