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(a,b){this._url=a;var c={},d=Object.keys(b);d.forEach(a=>{c[a.toLowerCase()]=b[a]});var e=L.extend({},this.defaultWmtsParams),f=c.tileSize||this.options.tileSize;for(var g in e.width=c.detectRetina&&L.Browser.retina?e.height=2*f:e.height=f,c)e.hasOwnProperty(g)&&"matrixIds"!=g&&(e[g]=c[g]);this.wmtsParams=e,this.matrixIds=b.matrixIds||this.getDefaultMatrix(),L.setOptions(this,b)},onAdd:function(a){this._crs=this.options.crs||a.options.crs,L.TileLayer.prototype.onAdd.call(this,a)},getTileUrl:function(a){var b=this.options.tileSize,c=a.multiplyBy(b);c.x+=1,c.y-=1;var d=c.add(new L.Point(b,b)),e=this._tileZoom,f=this._crs.project(this._map.unproject(c,e)),g=this._crs.project(this._map.unproject(d,e));tilewidth=g.x-f.x;var h=this.matrixIds[e].identifier,i=this.wmtsParams.tilematrixset+":"+h,j=this.matrixIds[e].topLeftCorner.lng,k=this.matrixIds[e].topLeftCorner.lat,l=Math.floor((f.x-j)/tilewidth),m=-Math.floor((f.y-k)/tilewidth),n=L.Util.template(this._url,{s:this._getSubdomain(a)});return n+L.Util.getParamString(this.wmtsParams,n)+"&tilematrix="+i+"&tilerow="+m+"&tilecol="+l},setParams:function(a,b){return L.extend(this.wmtsParams,a),b||this.redraw(),this},getDefaultMatrix:function(){for(var a=Array(22),b=0;22>b;b++)a[b]={identifier:""+b,topLeftCorner:new L.LatLng(20037508.3428,-20037508.3428)};return a}}),L.tileLayer.wmts=function(a,b){return new L.TileLayer.WMTS(a,b)};