MediaWiki:Gadget-proj4leaflet.min.js
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!function(t){if("undefined"==typeof window.L||"undefined"==typeof window.proj4)throw"Leaflet and proj4 must be loaded first";t(window.L,window.proj4)}(function(t,o){return t.Proj={},t.Proj._isProj4Obj=function(t){return"undefined"!=typeof t.inverse&&"undefined"!=typeof t.forward},t.Proj.Projection=t.Class.extend({initialize:function(o,e,i){var n=t.Proj._isProj4Obj(o);this._proj=n?o:this._projFromCodeDef(o,e),this.bounds=n?e:i},project:function(o){var e=this._proj.forward([o.lng,o.lat]);return new t.Point(e[0],e[1])},unproject:function(o,e){var i=this._proj.inverse([o.x,o.y]);return new t.LatLng(i[1],i[0],e)},_projFromCodeDef:function(t,e){if(e)o.defs(t,e);else if(void 0===o.defs[t]){var i=t.split(":");if(i.length>3&&(t=i[i.length-3]+":"+i[i.length-1]),void 0===o.defs[t])throw"No projection definition for code "+t}return o(t)}}),t.Proj.CRS=t.Class.extend({includes:t.CRS,options:{transformation:new t.Transformation(1,0,-1,0)},initialize:function(o,e,i){var n,s,r,a;if(t.Proj._isProj4Obj(o)?(s=o,n=s.srsCode,a=e||{},this.projection=new t.Proj.Projection(s,a.bounds)):(n=o,r=e,a=i||{},this.projection=new t.Proj.Projection(n,r,a.bounds)),t.Util.setOptions(this,a),this.code=n,this.transformation=this.options.transformation,this.options.origin&&(this.transformation=new t.Transformation(1,-this.options.origin[0],-1,this.options.origin[1])),this.options.scales)this._scales=this.options.scales;else if(this.options.resolutions){this._scales=[];for(var l=this.options.resolutions.length-1;l>=0;l--)this.options.resolutions[l]&&(this._scales[l]=1/this.options.resolutions[l])}this.infinite=!this.options.bounds},scale:function(t){var o,e,i,n,s=Math.floor(t);return t===s?this._scales[t]:(o=this._scales[s],e=this._scales[s+1],i=e-o,n=t-s,o+i*n)},zoom:function(t){var o,e,i,n=this._closestElement(this._scales,t),s=this._scales.indexOf(n);return t===n?s:(e=s+1,o=this._scales[e],void 0===o?1/0:(i=o-n,(t-n)/i+s))},distance:t.CRS.Earth.distance,R:t.CRS.Earth.R,_closestElement:function(t,o){for(var e,i=t.length;i--;)t[i]<=o&&(void 0===e||e<t[i])&&(e=t[i]);return e}}),t.Proj.GeoJSON=t.GeoJSON.extend({initialize:function(o,e){this._callLevel=0,t.GeoJSON.prototype.initialize.call(this,o,e)},addData:function(o){var e;o&&(o.crs&&"name"===o.crs.type?e=new t.Proj.CRS(o.crs.properties.name):o.crs&&o.crs.type&&(e=new t.Proj.CRS(o.crs.type+":"+o.crs.properties.code)),void 0!==e&&(this.options.coordsToLatLng=function(o){var i=t.point(o[0],o[1]);return e.projection.unproject(i)})),this._callLevel++;try{t.GeoJSON.prototype.addData.call(this,o)}finally{this._callLevel--,0===this._callLevel&&delete this.options.coordsToLatLng}}}),t.Proj.geoJson=function(o,e){return new t.Proj.GeoJSON(o,e)},t.Proj.ImageOverlay=t.ImageOverlay.extend({initialize:function(o,e,i){t.ImageOverlay.prototype.initialize.call(this,o,null,i),this._projectedBounds=e},_animateZoom:function(o){var e=this._map.getZoomScale(o.zoom),i=t.point(this._projectedBounds.min.x,this._projectedBounds.max.y),n=this._projectedToNewLayerPoint(i,o.zoom,o.center);t.DomUtil.setTransform(this._image,n,e)},_reset:function(){var o=this._map.getZoom(),e=this._map.getPixelOrigin(),i=t.bounds(this._transform(this._projectedBounds.min,o)._subtract(e),this._transform(this._projectedBounds.max,o)._subtract(e)),n=i.getSize();t.DomUtil.setPosition(this._image,i.min),this._image.style.width=n.x+"px",this._image.style.height=n.y+"px"},_projectedToNewLayerPoint:function(t,o,e){var i=this._map.getSize()._divideBy(2),n=this._map.project(e,o)._subtract(i)._round(),s=n.add(this._map._getMapPanePos());return this._transform(t,o)._subtract(s)},_transform:function(t,o){var e=this._map.options.crs,i=e.transformation,n=e.scale(o);return i.transform(t,n)}}),t.Proj.imageOverlay=function(o,e,i){return new t.Proj.ImageOverlay(o,e,i)},t.Proj});
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