641 lines
162 KiB
JavaScript
641 lines
162 KiB
JavaScript
/*
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OpenLayers.js -- OpenLayers Map Viewer Library
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Copyright (c) 2006-2013 by OpenLayers Contributors
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Published under the 2-clause BSD license.
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See http://openlayers.org/dev/license.txt for the full text of the license, and http://openlayers.org/dev/authors.txt for full list of contributors.
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Includes compressed code under the following licenses:
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(For uncompressed versions of the code used, please see the
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OpenLayers Github repository: <https://github.com/openlayers/openlayers>)
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*/
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/**
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* Contains XMLHttpRequest.js <http://code.google.com/p/xmlhttprequest/>
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* Copyright 2007 Sergey Ilinsky (http://www.ilinsky.com)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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/**
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* OpenLayers.Util.pagePosition is based on Yahoo's getXY method, which is
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* Copyright (c) 2006, Yahoo! Inc.
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* All rights reserved.
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*
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* Redistribution and use of this software in source and binary forms, with or
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* without modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* * Neither the name of Yahoo! Inc. nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission of Yahoo! Inc.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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var OpenLayers={VERSION_NUMBER:"Release 2.13 dev",singleFile:true,_getScriptLocation:(function(){var r=new RegExp("(^|(.*?\\/))(OpenLayers[^\\/]*?\\.js)(\\?|$)"),s=document.getElementsByTagName('script'),src,m,l="";for(var i=0,len=s.length;i<len;i++){src=s[i].getAttribute('src');if(src){m=src.match(r);if(m){l=m[1];break;}}}
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return(function(){return l;});})(),ImgPath:''};OpenLayers.Class=function(){var len=arguments.length;var P=arguments[0];var F=arguments[len-1];var C=typeof F.initialize=="function"?F.initialize:function(){P.prototype.initialize.apply(this,arguments);};if(len>1){var newArgs=[C,P].concat(Array.prototype.slice.call(arguments).slice(1,len-1),F);OpenLayers.inherit.apply(null,newArgs);}else{C.prototype=F;}
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return C;};OpenLayers.inherit=function(C,P){var F=function(){};F.prototype=P.prototype;C.prototype=new F;var i,l,o;for(i=2,l=arguments.length;i<l;i++){o=arguments[i];if(typeof o==="function"){o=o.prototype;}
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OpenLayers.Util.extend(C.prototype,o);}};OpenLayers.Util=OpenLayers.Util||{};OpenLayers.Util.extend=function(destination,source){destination=destination||{};if(source){for(var property in source){var value=source[property];if(value!==undefined){destination[property]=value;}}
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var sourceIsEvt=typeof window.Event=="function"&&source instanceof window.Event;if(!sourceIsEvt&&source.hasOwnProperty&&source.hasOwnProperty("toString")){destination.toString=source.toString;}}
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return destination;};OpenLayers.Util=OpenLayers.Util||{};OpenLayers.Util.vendorPrefix=(function(){"use strict";var VENDOR_PREFIXES=["","O","ms","Moz","Webkit"],divStyle=document.createElement("div").style,cssCache={},jsCache={};function domToCss(prefixedDom){if(!prefixedDom){return null;}
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return prefixedDom.replace(/([A-Z])/g,function(c){return"-"+c.toLowerCase();}).replace(/^ms-/,"-ms-");}
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function css(property){if(cssCache[property]===undefined){var domProperty=property.replace(/(-[\s\S])/g,function(c){return c.charAt(1).toUpperCase();});var prefixedDom=style(domProperty);cssCache[property]=domToCss(prefixedDom);}
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return cssCache[property];}
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function js(obj,property){if(jsCache[property]===undefined){var tmpProp,i=0,l=VENDOR_PREFIXES.length,prefix,isStyleObj=(typeof obj.cssText!=="undefined");jsCache[property]=null;for(;i<l;i++){prefix=VENDOR_PREFIXES[i];if(prefix){if(!isStyleObj){prefix=prefix.toLowerCase();}
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tmpProp=prefix+property.charAt(0).toUpperCase()+property.slice(1);}else{tmpProp=property;}
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if(obj[tmpProp]!==undefined){jsCache[property]=tmpProp;break;}}}
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return jsCache[property];}
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function style(property){return js(divStyle,property);}
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return{css:css,js:js,style:style,cssCache:cssCache,jsCache:jsCache};}());OpenLayers.Animation=(function(window){var requestAnimationFrame=OpenLayers.Util.vendorPrefix.js(window,"requestAnimationFrame");var isNative=!!(requestAnimationFrame);var requestFrame=(function(){var request=window[requestAnimationFrame]||function(callback,element){window.setTimeout(callback,16);};return function(callback,element){request.apply(window,[callback,element]);};})();var counter=0;var loops={};function start(callback,duration,element){duration=duration>0?duration:Number.POSITIVE_INFINITY;var id=++counter;var start=+new Date;loops[id]=function(){if(loops[id]&&+new Date-start<=duration){callback();if(loops[id]){requestFrame(loops[id],element);}}else{delete loops[id];}};requestFrame(loops[id],element);return id;}
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function stop(id){delete loops[id];}
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return{isNative:isNative,requestFrame:requestFrame,start:start,stop:stop};})(window);OpenLayers.Tween=OpenLayers.Class({easing:null,begin:null,finish:null,duration:null,callbacks:null,time:null,minFrameRate:null,startTime:null,animationId:null,playing:false,initialize:function(easing){this.easing=(easing)?easing:OpenLayers.Easing.Expo.easeOut;},start:function(begin,finish,duration,options){this.playing=true;this.begin=begin;this.finish=finish;this.duration=duration;this.callbacks=options.callbacks;this.minFrameRate=options.minFrameRate||30;this.time=0;this.startTime=new Date().getTime();OpenLayers.Animation.stop(this.animationId);this.animationId=null;if(this.callbacks&&this.callbacks.start){this.callbacks.start.call(this,this.begin);}
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this.animationId=OpenLayers.Animation.start(OpenLayers.Function.bind(this.play,this));},stop:function(){if(!this.playing){return;}
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if(this.callbacks&&this.callbacks.done){this.callbacks.done.call(this,this.finish);}
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OpenLayers.Animation.stop(this.animationId);this.animationId=null;this.playing=false;},play:function(){var value={};for(var i in this.begin){var b=this.begin[i];var f=this.finish[i];if(b==null||f==null||isNaN(b)||isNaN(f)){throw new TypeError('invalid value for Tween');}
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var c=f-b;value[i]=this.easing.apply(this,[this.time,b,c,this.duration]);}
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this.time++;if(this.callbacks&&this.callbacks.eachStep){if((new Date().getTime()-this.startTime)/this.time<=1000/this.minFrameRate){this.callbacks.eachStep.call(this,value);}}
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if(this.time>this.duration){this.stop();}},CLASS_NAME:"OpenLayers.Tween"});OpenLayers.Easing={CLASS_NAME:"OpenLayers.Easing"};OpenLayers.Easing.Linear={easeIn:function(t,b,c,d){return c*t/d+b;},easeOut:function(t,b,c,d){return c*t/d+b;},easeInOut:function(t,b,c,d){return c*t/d+b;},CLASS_NAME:"OpenLayers.Easing.Linear"};OpenLayers.Easing.Expo={easeIn:function(t,b,c,d){return(t==0)?b:c*Math.pow(2,10*(t/d-1))+b;},easeOut:function(t,b,c,d){return(t==d)?b+c:c*(-Math.pow(2,-10*t/d)+1)+b;},easeInOut:function(t,b,c,d){if(t==0)return b;if(t==d)return b+c;if((t/=d/2)<1)return c/2*Math.pow(2,10*(t-1))+b;return c/2*(-Math.pow(2,-10*--t)+2)+b;},CLASS_NAME:"OpenLayers.Easing.Expo"};OpenLayers.Easing.Quad={easeIn:function(t,b,c,d){return c*(t/=d)*t+b;},easeOut:function(t,b,c,d){return-c*(t/=d)*(t-2)+b;},easeInOut:function(t,b,c,d){if((t/=d/2)<1)return c/2*t*t+b;return-c/2*((--t)*(t-2)-1)+b;},CLASS_NAME:"OpenLayers.Easing.Quad"};OpenLayers.String={startsWith:function(str,sub){return(str.indexOf(sub)==0);},contains:function(str,sub){return(str.indexOf(sub)!=-1);},trim:function(str){return str.replace(/^\s\s*/,'').replace(/\s\s*$/,'');},camelize:function(str){var oStringList=str.split('-');var camelizedString=oStringList[0];for(var i=1,len=oStringList.length;i<len;i++){var s=oStringList[i];camelizedString+=s.charAt(0).toUpperCase()+s.substring(1);}
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return camelizedString;},format:function(template,context,args){if(!context){context=window;}
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var replacer=function(str,match){var replacement;var subs=match.split(/\.+/);for(var i=0;i<subs.length;i++){if(i==0){replacement=context;}
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replacement=replacement[subs[i]];}
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if(typeof replacement=="function"){replacement=args?replacement.apply(null,args):replacement();}
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if(typeof replacement=='undefined'){return'undefined';}else{return replacement;}};return template.replace(OpenLayers.String.tokenRegEx,replacer);},tokenRegEx:/\$\{([\w.]+?)\}/g,numberRegEx:/^([+-]?)(?=\d|\.\d)\d*(\.\d*)?([Ee]([+-]?\d+))?$/,isNumeric:function(value){return OpenLayers.String.numberRegEx.test(value);},numericIf:function(value,trimWhitespace){var originalValue=value;if(trimWhitespace===true&&value!=null&&value.replace){value=value.replace(/^\s*|\s*$/g,"");}
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return OpenLayers.String.isNumeric(value)?parseFloat(value):originalValue;}};OpenLayers.Number={decimalSeparator:".",thousandsSeparator:",",limitSigDigs:function(num,sig){var fig=0;if(sig>0){fig=parseFloat(num.toPrecision(sig));}
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return fig;},format:function(num,dec,tsep,dsep){dec=(typeof dec!="undefined")?dec:0;tsep=(typeof tsep!="undefined")?tsep:OpenLayers.Number.thousandsSeparator;dsep=(typeof dsep!="undefined")?dsep:OpenLayers.Number.decimalSeparator;if(dec!=null){num=parseFloat(num.toFixed(dec));}
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var parts=num.toString().split(".");if(parts.length==1&&dec==null){dec=0;}
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var integer=parts[0];if(tsep){var thousands=/(-?[0-9]+)([0-9]{3})/;while(thousands.test(integer)){integer=integer.replace(thousands,"$1"+tsep+"$2");}}
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var str;if(dec==0){str=integer;}else{var rem=parts.length>1?parts[1]:"0";if(dec!=null){rem=rem+new Array(dec-rem.length+1).join("0");}
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str=integer+dsep+rem;}
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return str;},zeroPad:function(num,len,radix){var str=num.toString(radix||10);while(str.length<len){str="0"+str;}
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return str;}};OpenLayers.Function={bind:function(func,object){var args=Array.prototype.slice.apply(arguments,[2]);return function(){var newArgs=args.concat(Array.prototype.slice.apply(arguments,[0]));return func.apply(object,newArgs);};},bindAsEventListener:function(func,object){return function(event){return func.call(object,event||window.event);};},False:function(){return false;},True:function(){return true;},Void:function(){}};OpenLayers.Array={filter:function(array,callback,caller){var selected=[];if(Array.prototype.filter){selected=array.filter(callback,caller);}else{var len=array.length;if(typeof callback!="function"){throw new TypeError();}
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for(var i=0;i<len;i++){if(i in array){var val=array[i];if(callback.call(caller,val,i,array)){selected.push(val);}}}}
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return selected;}};OpenLayers.Bounds=OpenLayers.Class({left:null,bottom:null,right:null,top:null,centerLonLat:null,initialize:function(left,bottom,right,top){if(OpenLayers.Util.isArray(left)){top=left[3];right=left[2];bottom=left[1];left=left[0];}
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if(left!=null){this.left=OpenLayers.Util.toFloat(left);}
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if(bottom!=null){this.bottom=OpenLayers.Util.toFloat(bottom);}
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if(right!=null){this.right=OpenLayers.Util.toFloat(right);}
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if(top!=null){this.top=OpenLayers.Util.toFloat(top);}},clone:function(){return new OpenLayers.Bounds(this.left,this.bottom,this.right,this.top);},equals:function(bounds){var equals=false;if(bounds!=null){equals=((this.left==bounds.left)&&(this.right==bounds.right)&&(this.top==bounds.top)&&(this.bottom==bounds.bottom));}
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return equals;},toString:function(){return[this.left,this.bottom,this.right,this.top].join(",");},toArray:function(reverseAxisOrder){if(reverseAxisOrder===true){return[this.bottom,this.left,this.top,this.right];}else{return[this.left,this.bottom,this.right,this.top];}},toBBOX:function(decimal,reverseAxisOrder){if(decimal==null){decimal=6;}
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var mult=Math.pow(10,decimal);var xmin=Math.round(this.left*mult)/mult;var ymin=Math.round(this.bottom*mult)/mult;var xmax=Math.round(this.right*mult)/mult;var ymax=Math.round(this.top*mult)/mult;if(reverseAxisOrder===true){return ymin+","+xmin+","+ymax+","+xmax;}else{return xmin+","+ymin+","+xmax+","+ymax;}},toGeometry:function(){return new OpenLayers.Geometry.Polygon([new OpenLayers.Geometry.LinearRing([new OpenLayers.Geometry.Point(this.left,this.bottom),new OpenLayers.Geometry.Point(this.right,this.bottom),new OpenLayers.Geometry.Point(this.right,this.top),new OpenLayers.Geometry.Point(this.left,this.top)])]);},getWidth:function(){return(this.right-this.left);},getHeight:function(){return(this.top-this.bottom);},getSize:function(){return new OpenLayers.Size(this.getWidth(),this.getHeight());},getCenterPixel:function(){return new OpenLayers.Pixel((this.left+this.right)/2,(this.bottom+this.top)/2);},getCenterLonLat:function(){if(!this.centerLonLat){this.centerLonLat=new OpenLayers.LonLat((this.left+this.right)/2,(this.bottom+this.top)/2);}
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return this.centerLonLat;},scale:function(ratio,origin){if(origin==null){origin=this.getCenterLonLat();}
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var origx,origy;if(origin.CLASS_NAME=="OpenLayers.LonLat"){origx=origin.lon;origy=origin.lat;}else{origx=origin.x;origy=origin.y;}
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var left=(this.left-origx)*ratio+origx;var bottom=(this.bottom-origy)*ratio+origy;var right=(this.right-origx)*ratio+origx;var top=(this.top-origy)*ratio+origy;return new OpenLayers.Bounds(left,bottom,right,top);},add:function(x,y){if((x==null)||(y==null)){throw new TypeError('Bounds.add cannot receive null values');}
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return new OpenLayers.Bounds(this.left+x,this.bottom+y,this.right+x,this.top+y);},extend:function(object){var bounds=null;if(object){switch(object.CLASS_NAME){case"OpenLayers.LonLat":bounds=new OpenLayers.Bounds(object.lon,object.lat,object.lon,object.lat);break;case"OpenLayers.Geometry.Point":bounds=new OpenLayers.Bounds(object.x,object.y,object.x,object.y);break;case"OpenLayers.Bounds":bounds=object;break;}
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if(bounds){this.centerLonLat=null;if((this.left==null)||(bounds.left<this.left)){this.left=bounds.left;}
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if((this.bottom==null)||(bounds.bottom<this.bottom)){this.bottom=bounds.bottom;}
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if((this.right==null)||(bounds.right>this.right)){this.right=bounds.right;}
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if((this.top==null)||(bounds.top>this.top)){this.top=bounds.top;}}}},containsLonLat:function(ll,options){if(typeof options==="boolean"){options={inclusive:options};}
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options=options||{};var contains=this.contains(ll.lon,ll.lat,options.inclusive),worldBounds=options.worldBounds;if(worldBounds&&!contains){var worldWidth=worldBounds.getWidth();var worldCenterX=(worldBounds.left+worldBounds.right)/2;var worldsAway=Math.round((ll.lon-worldCenterX)/worldWidth);contains=this.containsLonLat({lon:ll.lon-worldsAway*worldWidth,lat:ll.lat},{inclusive:options.inclusive});}
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return contains;},containsPixel:function(px,inclusive){return this.contains(px.x,px.y,inclusive);},contains:function(x,y,inclusive){if(inclusive==null){inclusive=true;}
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if(x==null||y==null){return false;}
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x=OpenLayers.Util.toFloat(x);y=OpenLayers.Util.toFloat(y);var contains=false;if(inclusive){contains=((x>=this.left)&&(x<=this.right)&&(y>=this.bottom)&&(y<=this.top));}else{contains=((x>this.left)&&(x<this.right)&&(y>this.bottom)&&(y<this.top));}
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return contains;},intersectsBounds:function(bounds,options){if(typeof options==="boolean"){options={inclusive:options};}
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options=options||{};if(options.worldBounds){var self=this.wrapDateLine(options.worldBounds);bounds=bounds.wrapDateLine(options.worldBounds);}else{self=this;}
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if(options.inclusive==null){options.inclusive=true;}
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var intersects=false;var mightTouch=(self.left==bounds.right||self.right==bounds.left||self.top==bounds.bottom||self.bottom==bounds.top);if(options.inclusive||!mightTouch){var inBottom=(((bounds.bottom>=self.bottom)&&(bounds.bottom<=self.top))||((self.bottom>=bounds.bottom)&&(self.bottom<=bounds.top)));var inTop=(((bounds.top>=self.bottom)&&(bounds.top<=self.top))||((self.top>bounds.bottom)&&(self.top<bounds.top)));var inLeft=(((bounds.left>=self.left)&&(bounds.left<=self.right))||((self.left>=bounds.left)&&(self.left<=bounds.right)));var inRight=(((bounds.right>=self.left)&&(bounds.right<=self.right))||((self.right>=bounds.left)&&(self.right<=bounds.right)));intersects=((inBottom||inTop)&&(inLeft||inRight));}
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if(options.worldBounds&&!intersects){var world=options.worldBounds;var width=world.getWidth();var selfCrosses=!world.containsBounds(self);var boundsCrosses=!world.containsBounds(bounds);if(selfCrosses&&!boundsCrosses){bounds=bounds.add(-width,0);intersects=self.intersectsBounds(bounds,{inclusive:options.inclusive});}else if(boundsCrosses&&!selfCrosses){self=self.add(-width,0);intersects=bounds.intersectsBounds(self,{inclusive:options.inclusive});}}
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return intersects;},containsBounds:function(bounds,partial,inclusive){if(partial==null){partial=false;}
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if(inclusive==null){inclusive=true;}
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var bottomLeft=this.contains(bounds.left,bounds.bottom,inclusive);var bottomRight=this.contains(bounds.right,bounds.bottom,inclusive);var topLeft=this.contains(bounds.left,bounds.top,inclusive);var topRight=this.contains(bounds.right,bounds.top,inclusive);return(partial)?(bottomLeft||bottomRight||topLeft||topRight):(bottomLeft&&bottomRight&&topLeft&&topRight);},determineQuadrant:function(lonlat){var quadrant="";var center=this.getCenterLonLat();quadrant+=(lonlat.lat<center.lat)?"b":"t";quadrant+=(lonlat.lon<center.lon)?"l":"r";return quadrant;},transform:function(source,dest){this.centerLonLat=null;var ll=OpenLayers.Projection.transform({'x':this.left,'y':this.bottom},source,dest);var lr=OpenLayers.Projection.transform({'x':this.right,'y':this.bottom},source,dest);var ul=OpenLayers.Projection.transform({'x':this.left,'y':this.top},source,dest);var ur=OpenLayers.Projection.transform({'x':this.right,'y':this.top},source,dest);this.left=Math.min(ll.x,ul.x);this.bottom=Math.min(ll.y,lr.y);this.right=Math.max(lr.x,ur.x);this.top=Math.max(ul.y,ur.y);return this;},wrapDateLine:function(maxExtent,options){options=options||{};var leftTolerance=options.leftTolerance||0;var rightTolerance=options.rightTolerance||0;var newBounds=this.clone();if(maxExtent){var width=maxExtent.getWidth();while(newBounds.left<maxExtent.left&&newBounds.right-rightTolerance<=maxExtent.left){newBounds=newBounds.add(width,0);}
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while(newBounds.left+leftTolerance>=maxExtent.right&&newBounds.right>maxExtent.right){newBounds=newBounds.add(-width,0);}
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var newLeft=newBounds.left+leftTolerance;if(newLeft<maxExtent.right&&newLeft>maxExtent.left&&newBounds.right-rightTolerance>maxExtent.right){newBounds=newBounds.add(-width,0);}}
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return newBounds;},CLASS_NAME:"OpenLayers.Bounds"});OpenLayers.Bounds.fromString=function(str,reverseAxisOrder){var bounds=str.split(",");return OpenLayers.Bounds.fromArray(bounds,reverseAxisOrder);};OpenLayers.Bounds.fromArray=function(bbox,reverseAxisOrder){return reverseAxisOrder===true?new OpenLayers.Bounds(bbox[1],bbox[0],bbox[3],bbox[2]):new OpenLayers.Bounds(bbox[0],bbox[1],bbox[2],bbox[3]);};OpenLayers.Bounds.fromSize=function(size){return new OpenLayers.Bounds(0,size.h,size.w,0);};OpenLayers.Bounds.oppositeQuadrant=function(quadrant){var opp="";opp+=(quadrant.charAt(0)=='t')?'b':'t';opp+=(quadrant.charAt(1)=='l')?'r':'l';return opp;};OpenLayers.Element={visible:function(element){return OpenLayers.Util.getElement(element).style.display!='none';},toggle:function(){for(var i=0,len=arguments.length;i<len;i++){var element=OpenLayers.Util.getElement(arguments[i]);var display=OpenLayers.Element.visible(element)?'none':'';element.style.display=display;}},remove:function(element){element=OpenLayers.Util.getElement(element);element.parentNode.removeChild(element);},getHeight:function(element){element=OpenLayers.Util.getElement(element);return element.offsetHeight;},hasClass:function(element,name){var names=element.className;return(!!names&&new RegExp("(^|\\s)"+name+"(\\s|$)").test(names));},addClass:function(element,name){if(!OpenLayers.Element.hasClass(element,name)){element.className+=(element.className?" ":"")+name;}
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return element;},removeClass:function(element,name){var names=element.className;if(names){element.className=OpenLayers.String.trim(names.replace(new RegExp("(^|\\s+)"+name+"(\\s+|$)")," "));}
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return element;},toggleClass:function(element,name){if(OpenLayers.Element.hasClass(element,name)){OpenLayers.Element.removeClass(element,name);}else{OpenLayers.Element.addClass(element,name);}
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return element;},getStyle:function(element,style){element=OpenLayers.Util.getElement(element);var value=null;if(element&&element.style){value=element.style[OpenLayers.String.camelize(style)];if(!value){if(document.defaultView&&document.defaultView.getComputedStyle){var css=document.defaultView.getComputedStyle(element,null);value=css?css.getPropertyValue(style):null;}else if(element.currentStyle){value=element.currentStyle[OpenLayers.String.camelize(style)];}}
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var positions=['left','top','right','bottom'];if(window.opera&&(OpenLayers.Util.indexOf(positions,style)!=-1)&&(OpenLayers.Element.getStyle(element,'position')=='static')){value='auto';}}
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return value=='auto'?null:value;}};OpenLayers.LonLat=OpenLayers.Class({lon:0.0,lat:0.0,initialize:function(lon,lat){if(OpenLayers.Util.isArray(lon)){lat=lon[1];lon=lon[0];}
|
|
this.lon=OpenLayers.Util.toFloat(lon);this.lat=OpenLayers.Util.toFloat(lat);},toString:function(){return("lon="+this.lon+",lat="+this.lat);},toShortString:function(){return(this.lon+", "+this.lat);},clone:function(){return new OpenLayers.LonLat(this.lon,this.lat);},add:function(lon,lat){if((lon==null)||(lat==null)){throw new TypeError('LonLat.add cannot receive null values');}
|
|
return new OpenLayers.LonLat(this.lon+OpenLayers.Util.toFloat(lon),this.lat+OpenLayers.Util.toFloat(lat));},equals:function(ll){var equals=false;if(ll!=null){equals=((this.lon==ll.lon&&this.lat==ll.lat)||(isNaN(this.lon)&&isNaN(this.lat)&&isNaN(ll.lon)&&isNaN(ll.lat)));}
|
|
return equals;},transform:function(source,dest){var point=OpenLayers.Projection.transform({'x':this.lon,'y':this.lat},source,dest);this.lon=point.x;this.lat=point.y;return this;},wrapDateLine:function(maxExtent){var newLonLat=this.clone();if(maxExtent){while(newLonLat.lon<maxExtent.left){newLonLat.lon+=maxExtent.getWidth();}
|
|
while(newLonLat.lon>maxExtent.right){newLonLat.lon-=maxExtent.getWidth();}}
|
|
return newLonLat;},CLASS_NAME:"OpenLayers.LonLat"});OpenLayers.LonLat.fromString=function(str){var pair=str.split(",");return new OpenLayers.LonLat(pair[0],pair[1]);};OpenLayers.LonLat.fromArray=function(arr){var gotArr=OpenLayers.Util.isArray(arr),lon=gotArr&&arr[0],lat=gotArr&&arr[1];return new OpenLayers.LonLat(lon,lat);};OpenLayers.Pixel=OpenLayers.Class({x:0.0,y:0.0,initialize:function(x,y){this.x=parseFloat(x);this.y=parseFloat(y);},toString:function(){return("x="+this.x+",y="+this.y);},clone:function(){return new OpenLayers.Pixel(this.x,this.y);},equals:function(px){var equals=false;if(px!=null){equals=((this.x==px.x&&this.y==px.y)||(isNaN(this.x)&&isNaN(this.y)&&isNaN(px.x)&&isNaN(px.y)));}
|
|
return equals;},distanceTo:function(px){return Math.sqrt(Math.pow(this.x-px.x,2)+
|
|
Math.pow(this.y-px.y,2));},add:function(x,y){if((x==null)||(y==null)){throw new TypeError('Pixel.add cannot receive null values');}
|
|
return new OpenLayers.Pixel(this.x+x,this.y+y);},offset:function(px){var newPx=this.clone();if(px){newPx=this.add(px.x,px.y);}
|
|
return newPx;},CLASS_NAME:"OpenLayers.Pixel"});OpenLayers.Size=OpenLayers.Class({w:0.0,h:0.0,initialize:function(w,h){this.w=parseFloat(w);this.h=parseFloat(h);},toString:function(){return("w="+this.w+",h="+this.h);},clone:function(){return new OpenLayers.Size(this.w,this.h);},equals:function(sz){var equals=false;if(sz!=null){equals=((this.w==sz.w&&this.h==sz.h)||(isNaN(this.w)&&isNaN(this.h)&&isNaN(sz.w)&&isNaN(sz.h)));}
|
|
return equals;},CLASS_NAME:"OpenLayers.Size"});OpenLayers.Console={log:function(){},debug:function(){},info:function(){},warn:function(){},error:function(){},userError:function(error){alert(error);},assert:function(){},dir:function(){},dirxml:function(){},trace:function(){},group:function(){},groupEnd:function(){},time:function(){},timeEnd:function(){},profile:function(){},profileEnd:function(){},count:function(){},CLASS_NAME:"OpenLayers.Console"};(function(){var scripts=document.getElementsByTagName("script");for(var i=0,len=scripts.length;i<len;++i){if(scripts[i].src.indexOf("firebug.js")!=-1){if(console){OpenLayers.Util.extend(OpenLayers.Console,console);break;}}}})();OpenLayers.Lang={code:null,defaultCode:"en",getCode:function(){if(!OpenLayers.Lang.code){OpenLayers.Lang.setCode();}
|
|
return OpenLayers.Lang.code;},setCode:function(code){var lang;if(!code){code=(OpenLayers.BROWSER_NAME=="msie")?navigator.userLanguage:navigator.language;}
|
|
var parts=code.split('-');parts[0]=parts[0].toLowerCase();if(typeof OpenLayers.Lang[parts[0]]=="object"){lang=parts[0];}
|
|
if(parts[1]){var testLang=parts[0]+'-'+parts[1].toUpperCase();if(typeof OpenLayers.Lang[testLang]=="object"){lang=testLang;}}
|
|
if(!lang){OpenLayers.Console.warn('Failed to find OpenLayers.Lang.'+parts.join("-")+' dictionary, falling back to default language');lang=OpenLayers.Lang.defaultCode;}
|
|
OpenLayers.Lang.code=lang;},translate:function(key,context){var dictionary=OpenLayers.Lang[OpenLayers.Lang.getCode()];var message=dictionary&&dictionary[key];if(!message){message=key;}
|
|
if(context){message=OpenLayers.String.format(message,context);}
|
|
return message;}};OpenLayers.i18n=OpenLayers.Lang.translate;OpenLayers.Util=OpenLayers.Util||{};OpenLayers.Util.getElement=function(){var elements=[];for(var i=0,len=arguments.length;i<len;i++){var element=arguments[i];if(typeof element=='string'){element=document.getElementById(element);}
|
|
if(arguments.length==1){return element;}
|
|
elements.push(element);}
|
|
return elements;};OpenLayers.Util.isElement=function(o){return!!(o&&o.nodeType===1);};OpenLayers.Util.isArray=function(a){return(Object.prototype.toString.call(a)==='[object Array]');};OpenLayers.Util.removeItem=function(array,item){for(var i=array.length-1;i>=0;i--){if(array[i]==item){array.splice(i,1);}}
|
|
return array;};OpenLayers.Util.indexOf=function(array,obj){if(typeof array.indexOf=="function"){return array.indexOf(obj);}else{for(var i=0,len=array.length;i<len;i++){if(array[i]==obj){return i;}}
|
|
return-1;}};OpenLayers.Util.dotless=/\./g;OpenLayers.Util.modifyDOMElement=function(element,id,px,sz,position,border,overflow,opacity){if(id){element.id=id.replace(OpenLayers.Util.dotless,"_");}
|
|
if(px){element.style.left=px.x+"px";element.style.top=px.y+"px";}
|
|
if(sz){element.style.width=sz.w+"px";element.style.height=sz.h+"px";}
|
|
if(position){element.style.position=position;}
|
|
if(border){element.style.border=border;}
|
|
if(overflow){element.style.overflow=overflow;}
|
|
if(parseFloat(opacity)>=0.0&&parseFloat(opacity)<1.0){element.style.filter='alpha(opacity='+(opacity*100)+')';element.style.opacity=opacity;}else if(parseFloat(opacity)==1.0){element.style.filter='';element.style.opacity='';}};OpenLayers.Util.createDiv=function(id,px,sz,imgURL,position,border,overflow,opacity){var dom=document.createElement('div');if(imgURL){dom.style.backgroundImage='url('+imgURL+')';}
|
|
if(!id){id=OpenLayers.Util.createUniqueID("OpenLayersDiv");}
|
|
if(!position){position="absolute";}
|
|
OpenLayers.Util.modifyDOMElement(dom,id,px,sz,position,border,overflow,opacity);return dom;};OpenLayers.Util.createImage=function(id,px,sz,imgURL,position,border,opacity,delayDisplay){var image=document.createElement("img");if(!id){id=OpenLayers.Util.createUniqueID("OpenLayersDiv");}
|
|
if(!position){position="relative";}
|
|
OpenLayers.Util.modifyDOMElement(image,id,px,sz,position,border,null,opacity);if(delayDisplay){image.style.display="none";function display(){image.style.display="";OpenLayers.Event.stopObservingElement(image);}
|
|
OpenLayers.Event.observe(image,"load",display);OpenLayers.Event.observe(image,"error",display);}
|
|
image.style.alt=id;image.galleryImg="no";if(imgURL){image.src=imgURL;}
|
|
return image;};OpenLayers.IMAGE_RELOAD_ATTEMPTS=0;OpenLayers.Util.alphaHackNeeded=null;OpenLayers.Util.alphaHack=function(){if(OpenLayers.Util.alphaHackNeeded==null){var arVersion=navigator.appVersion.split("MSIE");var version=parseFloat(arVersion[1]);var filter=false;try{filter=!!(document.body.filters);}catch(e){}
|
|
OpenLayers.Util.alphaHackNeeded=(filter&&(version>=5.5)&&(version<7));}
|
|
return OpenLayers.Util.alphaHackNeeded;};OpenLayers.Util.modifyAlphaImageDiv=function(div,id,px,sz,imgURL,position,border,sizing,opacity){OpenLayers.Util.modifyDOMElement(div,id,px,sz,position,null,null,opacity);var img=div.childNodes[0];if(imgURL){img.src=imgURL;}
|
|
OpenLayers.Util.modifyDOMElement(img,div.id+"_innerImage",null,sz,"relative",border);if(OpenLayers.Util.alphaHack()){if(div.style.display!="none"){div.style.display="inline-block";}
|
|
if(sizing==null){sizing="scale";}
|
|
div.style.filter="progid:DXImageTransform.Microsoft"+".AlphaImageLoader(src='"+img.src+"', "+"sizingMethod='"+sizing+"')";if(parseFloat(div.style.opacity)>=0.0&&parseFloat(div.style.opacity)<1.0){div.style.filter+=" alpha(opacity="+div.style.opacity*100+")";}
|
|
img.style.filter="alpha(opacity=0)";}};OpenLayers.Util.createAlphaImageDiv=function(id,px,sz,imgURL,position,border,sizing,opacity,delayDisplay){var div=OpenLayers.Util.createDiv();var img=OpenLayers.Util.createImage(null,null,null,null,null,null,null,delayDisplay);img.className="olAlphaImg";div.appendChild(img);OpenLayers.Util.modifyAlphaImageDiv(div,id,px,sz,imgURL,position,border,sizing,opacity);return div;};OpenLayers.Util.upperCaseObject=function(object){var uObject={};for(var key in object){uObject[key.toUpperCase()]=object[key];}
|
|
return uObject;};OpenLayers.Util.applyDefaults=function(to,from){to=to||{};var fromIsEvt=typeof window.Event=="function"&&from instanceof window.Event;for(var key in from){if(to[key]===undefined||(!fromIsEvt&&from.hasOwnProperty&&from.hasOwnProperty(key)&&!to.hasOwnProperty(key))){to[key]=from[key];}}
|
|
if(!fromIsEvt&&from&&from.hasOwnProperty&&from.hasOwnProperty('toString')&&!to.hasOwnProperty('toString')){to.toString=from.toString;}
|
|
return to;};OpenLayers.Util.getParameterString=function(params){var paramsArray=[];for(var key in params){var value=params[key];if((value!=null)&&(typeof value!='function')){var encodedValue;if(typeof value=='object'&&value.constructor==Array){var encodedItemArray=[];var item;for(var itemIndex=0,len=value.length;itemIndex<len;itemIndex++){item=value[itemIndex];encodedItemArray.push(encodeURIComponent((item===null||item===undefined)?"":item));}
|
|
encodedValue=encodedItemArray.join(",");}
|
|
else{encodedValue=encodeURIComponent(value);}
|
|
paramsArray.push(encodeURIComponent(key)+"="+encodedValue);}}
|
|
return paramsArray.join("&");};OpenLayers.Util.urlAppend=function(url,paramStr){var newUrl=url;if(paramStr){var parts=(url+" ").split(/[?&]/);newUrl+=(parts.pop()===" "?paramStr:parts.length?"&"+paramStr:"?"+paramStr);}
|
|
return newUrl;};OpenLayers.Util.getImagesLocation=function(){return OpenLayers.ImgPath||(OpenLayers._getScriptLocation()+"img/");};OpenLayers.Util.getImageLocation=function(image){return OpenLayers.Util.getImagesLocation()+image;};OpenLayers.Util.Try=function(){var returnValue=null;for(var i=0,len=arguments.length;i<len;i++){var lambda=arguments[i];try{returnValue=lambda();break;}catch(e){}}
|
|
return returnValue;};OpenLayers.Util.getXmlNodeValue=function(node){var val=null;OpenLayers.Util.Try(function(){val=node.text;if(!val){val=node.textContent;}
|
|
if(!val){val=node.firstChild.nodeValue;}},function(){val=node.textContent;});return val;};OpenLayers.Util.mouseLeft=function(evt,div){var target=(evt.relatedTarget)?evt.relatedTarget:evt.toElement;while(target!=div&&target!=null){target=target.parentNode;}
|
|
return(target!=div);};OpenLayers.Util.DEFAULT_PRECISION=14;OpenLayers.Util.toFloat=function(number,precision){if(precision==null){precision=OpenLayers.Util.DEFAULT_PRECISION;}
|
|
if(typeof number!=="number"){number=parseFloat(number);}
|
|
return precision===0?number:parseFloat(number.toPrecision(precision));};OpenLayers.Util.rad=function(x){return x*Math.PI/180;};OpenLayers.Util.deg=function(x){return x*180/Math.PI;};OpenLayers.Util.VincentyConstants={a:6378137,b:6356752.3142,f:1/298.257223563};OpenLayers.Util.distVincenty=function(p1,p2){var ct=OpenLayers.Util.VincentyConstants;var a=ct.a,b=ct.b,f=ct.f;var L=OpenLayers.Util.rad(p2.lon-p1.lon);var U1=Math.atan((1-f)*Math.tan(OpenLayers.Util.rad(p1.lat)));var U2=Math.atan((1-f)*Math.tan(OpenLayers.Util.rad(p2.lat)));var sinU1=Math.sin(U1),cosU1=Math.cos(U1);var sinU2=Math.sin(U2),cosU2=Math.cos(U2);var lambda=L,lambdaP=2*Math.PI;var iterLimit=20;while(Math.abs(lambda-lambdaP)>1e-12&&--iterLimit>0){var sinLambda=Math.sin(lambda),cosLambda=Math.cos(lambda);var sinSigma=Math.sqrt((cosU2*sinLambda)*(cosU2*sinLambda)+
|
|
(cosU1*sinU2-sinU1*cosU2*cosLambda)*(cosU1*sinU2-sinU1*cosU2*cosLambda));if(sinSigma==0){return 0;}
|
|
var cosSigma=sinU1*sinU2+cosU1*cosU2*cosLambda;var sigma=Math.atan2(sinSigma,cosSigma);var alpha=Math.asin(cosU1*cosU2*sinLambda/sinSigma);var cosSqAlpha=Math.cos(alpha)*Math.cos(alpha);var cos2SigmaM=cosSigma-2*sinU1*sinU2/cosSqAlpha;var C=f/16*cosSqAlpha*(4+f*(4-3*cosSqAlpha));lambdaP=lambda;lambda=L+(1-C)*f*Math.sin(alpha)*(sigma+C*sinSigma*(cos2SigmaM+C*cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)));}
|
|
if(iterLimit==0){return NaN;}
|
|
var uSq=cosSqAlpha*(a*a-b*b)/(b*b);var A=1+uSq/16384*(4096+uSq*(-768+uSq*(320-175*uSq)));var B=uSq/1024*(256+uSq*(-128+uSq*(74-47*uSq)));var deltaSigma=B*sinSigma*(cos2SigmaM+B/4*(cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)-
|
|
B/6*cos2SigmaM*(-3+4*sinSigma*sinSigma)*(-3+4*cos2SigmaM*cos2SigmaM)));var s=b*A*(sigma-deltaSigma);var d=s.toFixed(3)/1000;return d;};OpenLayers.Util.destinationVincenty=function(lonlat,brng,dist){var u=OpenLayers.Util;var ct=u.VincentyConstants;var a=ct.a,b=ct.b,f=ct.f;var lon1=lonlat.lon;var lat1=lonlat.lat;var s=dist;var alpha1=u.rad(brng);var sinAlpha1=Math.sin(alpha1);var cosAlpha1=Math.cos(alpha1);var tanU1=(1-f)*Math.tan(u.rad(lat1));var cosU1=1/Math.sqrt((1+tanU1*tanU1)),sinU1=tanU1*cosU1;var sigma1=Math.atan2(tanU1,cosAlpha1);var sinAlpha=cosU1*sinAlpha1;var cosSqAlpha=1-sinAlpha*sinAlpha;var uSq=cosSqAlpha*(a*a-b*b)/(b*b);var A=1+uSq/16384*(4096+uSq*(-768+uSq*(320-175*uSq)));var B=uSq/1024*(256+uSq*(-128+uSq*(74-47*uSq)));var sigma=s/(b*A),sigmaP=2*Math.PI;while(Math.abs(sigma-sigmaP)>1e-12){var cos2SigmaM=Math.cos(2*sigma1+sigma);var sinSigma=Math.sin(sigma);var cosSigma=Math.cos(sigma);var deltaSigma=B*sinSigma*(cos2SigmaM+B/4*(cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)-
|
|
B/6*cos2SigmaM*(-3+4*sinSigma*sinSigma)*(-3+4*cos2SigmaM*cos2SigmaM)));sigmaP=sigma;sigma=s/(b*A)+deltaSigma;}
|
|
var tmp=sinU1*sinSigma-cosU1*cosSigma*cosAlpha1;var lat2=Math.atan2(sinU1*cosSigma+cosU1*sinSigma*cosAlpha1,(1-f)*Math.sqrt(sinAlpha*sinAlpha+tmp*tmp));var lambda=Math.atan2(sinSigma*sinAlpha1,cosU1*cosSigma-sinU1*sinSigma*cosAlpha1);var C=f/16*cosSqAlpha*(4+f*(4-3*cosSqAlpha));var L=lambda-(1-C)*f*sinAlpha*(sigma+C*sinSigma*(cos2SigmaM+C*cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)));var revAz=Math.atan2(sinAlpha,-tmp);return new OpenLayers.LonLat(lon1+u.deg(L),u.deg(lat2));};OpenLayers.Util.getParameters=function(url){url=(url===null||url===undefined)?window.location.href:url;var paramsString="";if(OpenLayers.String.contains(url,'?')){var start=url.indexOf('?')+1;var end=OpenLayers.String.contains(url,"#")?url.indexOf('#'):url.length;paramsString=url.substring(start,end);}
|
|
var parameters={};var pairs=paramsString.split(/[&;]/);for(var i=0,len=pairs.length;i<len;++i){var keyValue=pairs[i].split('=');if(keyValue[0]){var key=keyValue[0];try{key=decodeURIComponent(key);}catch(err){key=unescape(key);}
|
|
var value=(keyValue[1]||'').replace(/\+/g," ");try{value=decodeURIComponent(value);}catch(err){value=unescape(value);}
|
|
value=value.split(",");if(value.length==1){value=value[0];}
|
|
parameters[key]=value;}}
|
|
return parameters;};OpenLayers.Util.lastSeqID=0;OpenLayers.Util.createUniqueID=function(prefix){if(prefix==null){prefix="id_";}else{prefix=prefix.replace(OpenLayers.Util.dotless,"_");}
|
|
OpenLayers.Util.lastSeqID+=1;return prefix+OpenLayers.Util.lastSeqID;};OpenLayers.INCHES_PER_UNIT={'inches':1.0,'ft':12.0,'mi':63360.0,'m':39.37,'km':39370,'dd':4374754,'yd':36};OpenLayers.INCHES_PER_UNIT["in"]=OpenLayers.INCHES_PER_UNIT.inches;OpenLayers.INCHES_PER_UNIT["degrees"]=OpenLayers.INCHES_PER_UNIT.dd;OpenLayers.INCHES_PER_UNIT["nmi"]=1852*OpenLayers.INCHES_PER_UNIT.m;OpenLayers.METERS_PER_INCH=0.02540005080010160020;OpenLayers.Util.extend(OpenLayers.INCHES_PER_UNIT,{"Inch":OpenLayers.INCHES_PER_UNIT.inches,"Meter":1.0/OpenLayers.METERS_PER_INCH,"Foot":0.30480060960121920243/OpenLayers.METERS_PER_INCH,"IFoot":0.30480000000000000000/OpenLayers.METERS_PER_INCH,"ClarkeFoot":0.3047972651151/OpenLayers.METERS_PER_INCH,"SearsFoot":0.30479947153867624624/OpenLayers.METERS_PER_INCH,"GoldCoastFoot":0.30479971018150881758/OpenLayers.METERS_PER_INCH,"IInch":0.02540000000000000000/OpenLayers.METERS_PER_INCH,"MicroInch":0.00002540000000000000/OpenLayers.METERS_PER_INCH,"Mil":0.00000002540000000000/OpenLayers.METERS_PER_INCH,"Centimeter":0.01000000000000000000/OpenLayers.METERS_PER_INCH,"Kilometer":1000.00000000000000000000/OpenLayers.METERS_PER_INCH,"Yard":0.91440182880365760731/OpenLayers.METERS_PER_INCH,"SearsYard":0.914398414616029/OpenLayers.METERS_PER_INCH,"IndianYard":0.91439853074444079983/OpenLayers.METERS_PER_INCH,"IndianYd37":0.91439523/OpenLayers.METERS_PER_INCH,"IndianYd62":0.9143988/OpenLayers.METERS_PER_INCH,"IndianYd75":0.9143985/OpenLayers.METERS_PER_INCH,"IndianFoot":0.30479951/OpenLayers.METERS_PER_INCH,"IndianFt37":0.30479841/OpenLayers.METERS_PER_INCH,"IndianFt62":0.3047996/OpenLayers.METERS_PER_INCH,"IndianFt75":0.3047995/OpenLayers.METERS_PER_INCH,"Mile":1609.34721869443738887477/OpenLayers.METERS_PER_INCH,"IYard":0.91440000000000000000/OpenLayers.METERS_PER_INCH,"IMile":1609.34400000000000000000/OpenLayers.METERS_PER_INCH,"NautM":1852.00000000000000000000/OpenLayers.METERS_PER_INCH,"Lat-66":110943.316488932731/OpenLayers.METERS_PER_INCH,"Lat-83":110946.25736872234125/OpenLayers.METERS_PER_INCH,"Decimeter":0.10000000000000000000/OpenLayers.METERS_PER_INCH,"Millimeter":0.00100000000000000000/OpenLayers.METERS_PER_INCH,"Dekameter":10.00000000000000000000/OpenLayers.METERS_PER_INCH,"Decameter":10.00000000000000000000/OpenLayers.METERS_PER_INCH,"Hectometer":100.00000000000000000000/OpenLayers.METERS_PER_INCH,"GermanMeter":1.0000135965/OpenLayers.METERS_PER_INCH,"CaGrid":0.999738/OpenLayers.METERS_PER_INCH,"ClarkeChain":20.1166194976/OpenLayers.METERS_PER_INCH,"GunterChain":20.11684023368047/OpenLayers.METERS_PER_INCH,"BenoitChain":20.116782494375872/OpenLayers.METERS_PER_INCH,"SearsChain":20.11676512155/OpenLayers.METERS_PER_INCH,"ClarkeLink":0.201166194976/OpenLayers.METERS_PER_INCH,"GunterLink":0.2011684023368047/OpenLayers.METERS_PER_INCH,"BenoitLink":0.20116782494375872/OpenLayers.METERS_PER_INCH,"SearsLink":0.2011676512155/OpenLayers.METERS_PER_INCH,"Rod":5.02921005842012/OpenLayers.METERS_PER_INCH,"IntnlChain":20.1168/OpenLayers.METERS_PER_INCH,"IntnlLink":0.201168/OpenLayers.METERS_PER_INCH,"Perch":5.02921005842012/OpenLayers.METERS_PER_INCH,"Pole":5.02921005842012/OpenLayers.METERS_PER_INCH,"Furlong":201.1684023368046/OpenLayers.METERS_PER_INCH,"Rood":3.778266898/OpenLayers.METERS_PER_INCH,"CapeFoot":0.3047972615/OpenLayers.METERS_PER_INCH,"Brealey":375.00000000000000000000/OpenLayers.METERS_PER_INCH,"ModAmFt":0.304812252984505969011938/OpenLayers.METERS_PER_INCH,"Fathom":1.8288/OpenLayers.METERS_PER_INCH,"NautM-UK":1853.184/OpenLayers.METERS_PER_INCH,"50kilometers":50000.0/OpenLayers.METERS_PER_INCH,"150kilometers":150000.0/OpenLayers.METERS_PER_INCH});OpenLayers.Util.extend(OpenLayers.INCHES_PER_UNIT,{"mm":OpenLayers.INCHES_PER_UNIT["Meter"]/1000.0,"cm":OpenLayers.INCHES_PER_UNIT["Meter"]/100.0,"dm":OpenLayers.INCHES_PER_UNIT["Meter"]*100.0,"km":OpenLayers.INCHES_PER_UNIT["Meter"]*1000.0,"kmi":OpenLayers.INCHES_PER_UNIT["nmi"],"fath":OpenLayers.INCHES_PER_UNIT["Fathom"],"ch":OpenLayers.INCHES_PER_UNIT["IntnlChain"],"link":OpenLayers.INCHES_PER_UNIT["IntnlLink"],"us-in":OpenLayers.INCHES_PER_UNIT["inches"],"us-ft":OpenLayers.INCHES_PER_UNIT["Foot"],"us-yd":OpenLayers.INCHES_PER_UNIT["Yard"],"us-ch":OpenLayers.INCHES_PER_UNIT["GunterChain"],"us-mi":OpenLayers.INCHES_PER_UNIT["Mile"],"ind-yd":OpenLayers.INCHES_PER_UNIT["IndianYd37"],"ind-ft":OpenLayers.INCHES_PER_UNIT["IndianFt37"],"ind-ch":20.11669506/OpenLayers.METERS_PER_INCH});OpenLayers.DOTS_PER_INCH=72;OpenLayers.Util.normalizeScale=function(scale){var normScale=(scale>1.0)?(1.0/scale):scale;return normScale;};OpenLayers.Util.getResolutionFromScale=function(scale,units){var resolution;if(scale){if(units==null){units="degrees";}
|
|
var normScale=OpenLayers.Util.normalizeScale(scale);resolution=1/(normScale*OpenLayers.INCHES_PER_UNIT[units]*OpenLayers.DOTS_PER_INCH);}
|
|
return resolution;};OpenLayers.Util.getScaleFromResolution=function(resolution,units){if(units==null){units="degrees";}
|
|
var scale=resolution*OpenLayers.INCHES_PER_UNIT[units]*OpenLayers.DOTS_PER_INCH;return scale;};OpenLayers.Util.pagePosition=function(forElement){var pos=[0,0];var viewportElement=OpenLayers.Util.getViewportElement();if(!forElement||forElement==window||forElement==viewportElement){return pos;}
|
|
var BUGGY_GECKO_BOX_OBJECT=OpenLayers.IS_GECKO&&document.getBoxObjectFor&&OpenLayers.Element.getStyle(forElement,'position')=='absolute'&&(forElement.style.top==''||forElement.style.left=='');var parent=null;var box;if(forElement.getBoundingClientRect){box=forElement.getBoundingClientRect();var scrollTop=window.pageYOffset||viewportElement.scrollTop;var scrollLeft=window.pageXOffset||viewportElement.scrollLeft;pos[0]=box.left+scrollLeft;pos[1]=box.top+scrollTop;}else if(document.getBoxObjectFor&&!BUGGY_GECKO_BOX_OBJECT){box=document.getBoxObjectFor(forElement);var vpBox=document.getBoxObjectFor(viewportElement);pos[0]=box.screenX-vpBox.screenX;pos[1]=box.screenY-vpBox.screenY;}else{pos[0]=forElement.offsetLeft;pos[1]=forElement.offsetTop;parent=forElement.offsetParent;if(parent!=forElement){while(parent){pos[0]+=parent.offsetLeft;pos[1]+=parent.offsetTop;parent=parent.offsetParent;}}
|
|
var browser=OpenLayers.BROWSER_NAME;if(browser=="opera"||(browser=="safari"&&OpenLayers.Element.getStyle(forElement,'position')=='absolute')){pos[1]-=document.body.offsetTop;}
|
|
parent=forElement.offsetParent;while(parent&&parent!=document.body){pos[0]-=parent.scrollLeft;if(browser!="opera"||parent.tagName!='TR'){pos[1]-=parent.scrollTop;}
|
|
parent=parent.offsetParent;}}
|
|
return pos;};OpenLayers.Util.getViewportElement=function(){var viewportElement=arguments.callee.viewportElement;if(viewportElement==undefined){viewportElement=(OpenLayers.BROWSER_NAME=="msie"&&document.compatMode!='CSS1Compat')?document.body:document.documentElement;arguments.callee.viewportElement=viewportElement;}
|
|
return viewportElement;};OpenLayers.Util.isEquivalentUrl=function(url1,url2,options){options=options||{};OpenLayers.Util.applyDefaults(options,{ignoreCase:true,ignorePort80:true,ignoreHash:true});var urlObj1=OpenLayers.Util.createUrlObject(url1,options);var urlObj2=OpenLayers.Util.createUrlObject(url2,options);for(var key in urlObj1){if(key!=="args"){if(urlObj1[key]!=urlObj2[key]){return false;}}}
|
|
for(var key in urlObj1.args){if(urlObj1.args[key]!=urlObj2.args[key]){return false;}
|
|
delete urlObj2.args[key];}
|
|
for(var key in urlObj2.args){return false;}
|
|
return true;};OpenLayers.Util.createUrlObject=function(url,options){options=options||{};if(!(/^\w+:\/\//).test(url)){var loc=window.location;var port=loc.port?":"+loc.port:"";var fullUrl=loc.protocol+"//"+loc.host.split(":").shift()+port;if(url.indexOf("/")===0){url=fullUrl+url;}else{var parts=loc.pathname.split("/");parts.pop();url=fullUrl+parts.join("/")+"/"+url;}}
|
|
if(options.ignoreCase){url=url.toLowerCase();}
|
|
var a=document.createElement('a');a.href=url;var urlObject={};urlObject.host=a.host.split(":").shift();urlObject.protocol=a.protocol;if(options.ignorePort80){urlObject.port=(a.port=="80"||a.port=="0")?"":a.port;}else{urlObject.port=(a.port==""||a.port=="0")?"80":a.port;}
|
|
urlObject.hash=(options.ignoreHash||a.hash==="#")?"":a.hash;var queryString=a.search;if(!queryString){var qMark=url.indexOf("?");queryString=(qMark!=-1)?url.substr(qMark):"";}
|
|
urlObject.args=OpenLayers.Util.getParameters(queryString);urlObject.pathname=(a.pathname.charAt(0)=="/")?a.pathname:"/"+a.pathname;return urlObject;};OpenLayers.Util.removeTail=function(url){var head=null;var qMark=url.indexOf("?");var hashMark=url.indexOf("#");if(qMark==-1){head=(hashMark!=-1)?url.substr(0,hashMark):url;}else{head=(hashMark!=-1)?url.substr(0,Math.min(qMark,hashMark)):url.substr(0,qMark);}
|
|
return head;};OpenLayers.IS_GECKO=(function(){var ua=navigator.userAgent.toLowerCase();return ua.indexOf("webkit")==-1&&ua.indexOf("gecko")!=-1;})();OpenLayers.CANVAS_SUPPORTED=(function(){var elem=document.createElement('canvas');return!!(elem.getContext&&elem.getContext('2d'));})();OpenLayers.BROWSER_NAME=(function(){var name="";var ua=navigator.userAgent.toLowerCase();if(ua.indexOf("opera")!=-1){name="opera";}else if(ua.indexOf("msie")!=-1){name="msie";}else if(ua.indexOf("safari")!=-1){name="safari";}else if(ua.indexOf("mozilla")!=-1){if(ua.indexOf("firefox")!=-1){name="firefox";}else{name="mozilla";}}
|
|
return name;})();OpenLayers.Util.getBrowserName=function(){return OpenLayers.BROWSER_NAME;};OpenLayers.Util.getRenderedDimensions=function(contentHTML,size,options){var w,h;var container=document.createElement("div");container.style.visibility="hidden";var containerElement=(options&&options.containerElement)?options.containerElement:document.body;var parentHasPositionAbsolute=false;var superContainer=null;var parent=containerElement;while(parent&&parent.tagName.toLowerCase()!="body"){var parentPosition=OpenLayers.Element.getStyle(parent,"position");if(parentPosition=="absolute"){parentHasPositionAbsolute=true;break;}else if(parentPosition&&parentPosition!="static"){break;}
|
|
parent=parent.parentNode;}
|
|
if(parentHasPositionAbsolute&&(containerElement.clientHeight===0||containerElement.clientWidth===0)){superContainer=document.createElement("div");superContainer.style.visibility="hidden";superContainer.style.position="absolute";superContainer.style.overflow="visible";superContainer.style.width=document.body.clientWidth+"px";superContainer.style.height=document.body.clientHeight+"px";superContainer.appendChild(container);}
|
|
container.style.position="absolute";if(size){if(size.w){w=size.w;container.style.width=w+"px";}else if(size.h){h=size.h;container.style.height=h+"px";}}
|
|
if(options&&options.displayClass){container.className=options.displayClass;}
|
|
var content=document.createElement("div");content.innerHTML=contentHTML;content.style.overflow="visible";if(content.childNodes){for(var i=0,l=content.childNodes.length;i<l;i++){if(!content.childNodes[i].style)continue;content.childNodes[i].style.overflow="visible";}}
|
|
container.appendChild(content);if(superContainer){containerElement.appendChild(superContainer);}else{containerElement.appendChild(container);}
|
|
if(!w){w=parseInt(content.scrollWidth);container.style.width=w+"px";}
|
|
if(!h){h=parseInt(content.scrollHeight);}
|
|
container.removeChild(content);if(superContainer){superContainer.removeChild(container);containerElement.removeChild(superContainer);}else{containerElement.removeChild(container);}
|
|
return new OpenLayers.Size(w,h);};OpenLayers.Util.getScrollbarWidth=function(){var scrollbarWidth=OpenLayers.Util._scrollbarWidth;if(scrollbarWidth==null){var scr=null;var inn=null;var wNoScroll=0;var wScroll=0;scr=document.createElement('div');scr.style.position='absolute';scr.style.top='-1000px';scr.style.left='-1000px';scr.style.width='100px';scr.style.height='50px';scr.style.overflow='hidden';inn=document.createElement('div');inn.style.width='100%';inn.style.height='200px';scr.appendChild(inn);document.body.appendChild(scr);wNoScroll=inn.offsetWidth;scr.style.overflow='scroll';wScroll=inn.offsetWidth;document.body.removeChild(document.body.lastChild);OpenLayers.Util._scrollbarWidth=(wNoScroll-wScroll);scrollbarWidth=OpenLayers.Util._scrollbarWidth;}
|
|
return scrollbarWidth;};OpenLayers.Util.getFormattedLonLat=function(coordinate,axis,dmsOption){if(!dmsOption){dmsOption='dms';}
|
|
coordinate=(coordinate+540)%360-180;var abscoordinate=Math.abs(coordinate);var coordinatedegrees=Math.floor(abscoordinate);var coordinateminutes=(abscoordinate-coordinatedegrees)/(1/60);var tempcoordinateminutes=coordinateminutes;coordinateminutes=Math.floor(coordinateminutes);var coordinateseconds=(tempcoordinateminutes-coordinateminutes)/(1/60);coordinateseconds=Math.round(coordinateseconds*10);coordinateseconds/=10;if(coordinateseconds>=60){coordinateseconds-=60;coordinateminutes+=1;if(coordinateminutes>=60){coordinateminutes-=60;coordinatedegrees+=1;}}
|
|
if(coordinatedegrees<10){coordinatedegrees="0"+coordinatedegrees;}
|
|
var str=coordinatedegrees+"\u00B0";if(dmsOption.indexOf('dm')>=0){if(coordinateminutes<10){coordinateminutes="0"+coordinateminutes;}
|
|
str+=coordinateminutes+"'";if(dmsOption.indexOf('dms')>=0){if(coordinateseconds<10){coordinateseconds="0"+coordinateseconds;}
|
|
str+=coordinateseconds+'"';}}
|
|
if(axis=="lon"){str+=coordinate<0?OpenLayers.i18n("W"):OpenLayers.i18n("E");}else{str+=coordinate<0?OpenLayers.i18n("S"):OpenLayers.i18n("N");}
|
|
return str;};OpenLayers.Event={observers:false,KEY_SPACE:32,KEY_BACKSPACE:8,KEY_TAB:9,KEY_RETURN:13,KEY_ESC:27,KEY_LEFT:37,KEY_UP:38,KEY_RIGHT:39,KEY_DOWN:40,KEY_DELETE:46,element:function(event){return event.target||event.srcElement;},isSingleTouch:function(event){return event.touches&&event.touches.length==1;},isMultiTouch:function(event){return event.touches&&event.touches.length>1;},isLeftClick:function(event){return(((event.which)&&(event.which==1))||((event.button)&&(event.button==1)));},isRightClick:function(event){return(((event.which)&&(event.which==3))||((event.button)&&(event.button==2)));},stop:function(event,allowDefault){if(!allowDefault){OpenLayers.Event.preventDefault(event);}
|
|
if(event.stopPropagation){event.stopPropagation();}else{event.cancelBubble=true;}},preventDefault:function(event){if(event.preventDefault){event.preventDefault();}else{event.returnValue=false;}},findElement:function(event,tagName){var element=OpenLayers.Event.element(event);while(element.parentNode&&(!element.tagName||(element.tagName.toUpperCase()!=tagName.toUpperCase()))){element=element.parentNode;}
|
|
return element;},observe:function(elementParam,name,observer,useCapture){var element=OpenLayers.Util.getElement(elementParam);useCapture=useCapture||false;if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.attachEvent)){name='keydown';}
|
|
if(!this.observers){this.observers={};}
|
|
if(!element._eventCacheID){var idPrefix="eventCacheID_";if(element.id){idPrefix=element.id+"_"+idPrefix;}
|
|
element._eventCacheID=OpenLayers.Util.createUniqueID(idPrefix);}
|
|
var cacheID=element._eventCacheID;if(!this.observers[cacheID]){this.observers[cacheID]=[];}
|
|
this.observers[cacheID].push({'element':element,'name':name,'observer':observer,'useCapture':useCapture});if(element.addEventListener){element.addEventListener(name,observer,useCapture);}else if(element.attachEvent){element.attachEvent('on'+name,observer);}},stopObservingElement:function(elementParam){var element=OpenLayers.Util.getElement(elementParam);var cacheID=element._eventCacheID;this._removeElementObservers(OpenLayers.Event.observers[cacheID]);},_removeElementObservers:function(elementObservers){if(elementObservers){for(var i=elementObservers.length-1;i>=0;i--){var entry=elementObservers[i];OpenLayers.Event.stopObserving.apply(this,[entry.element,entry.name,entry.observer,entry.useCapture]);}}},stopObserving:function(elementParam,name,observer,useCapture){useCapture=useCapture||false;var element=OpenLayers.Util.getElement(elementParam);var cacheID=element._eventCacheID;if(name=='keypress'){if(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.detachEvent){name='keydown';}}
|
|
var foundEntry=false;var elementObservers=OpenLayers.Event.observers[cacheID];if(elementObservers){var i=0;while(!foundEntry&&i<elementObservers.length){var cacheEntry=elementObservers[i];if((cacheEntry.name==name)&&(cacheEntry.observer==observer)&&(cacheEntry.useCapture==useCapture)){elementObservers.splice(i,1);if(elementObservers.length==0){delete OpenLayers.Event.observers[cacheID];}
|
|
foundEntry=true;break;}
|
|
i++;}}
|
|
if(foundEntry){if(element.removeEventListener){element.removeEventListener(name,observer,useCapture);}else if(element&&element.detachEvent){element.detachEvent('on'+name,observer);}}
|
|
return foundEntry;},unloadCache:function(){if(OpenLayers.Event&&OpenLayers.Event.observers){for(var cacheID in OpenLayers.Event.observers){var elementObservers=OpenLayers.Event.observers[cacheID];OpenLayers.Event._removeElementObservers.apply(this,[elementObservers]);}
|
|
OpenLayers.Event.observers=false;}},CLASS_NAME:"OpenLayers.Event"};OpenLayers.Event.observe(window,'unload',OpenLayers.Event.unloadCache,false);OpenLayers.Events=OpenLayers.Class({BROWSER_EVENTS:["mouseover","mouseout","mousedown","mouseup","mousemove","click","dblclick","rightclick","dblrightclick","resize","focus","blur","touchstart","touchmove","touchend","keydown"],listeners:null,object:null,element:null,eventHandler:null,fallThrough:null,includeXY:false,extensions:null,extensionCount:null,clearMouseListener:null,initialize:function(object,element,eventTypes,fallThrough,options){OpenLayers.Util.extend(this,options);this.object=object;this.fallThrough=fallThrough;this.listeners={};this.extensions={};this.extensionCount={};if(element!=null){this.attachToElement(element);}},destroy:function(){for(var e in this.extensions){if(typeof this.extensions[e]!=="boolean"){this.extensions[e].destroy();}}
|
|
this.extensions=null;if(this.element){OpenLayers.Event.stopObservingElement(this.element);if(this.element.hasScrollEvent){OpenLayers.Event.stopObserving(window,"scroll",this.clearMouseListener);}}
|
|
this.element=null;this.listeners=null;this.object=null;this.fallThrough=null;this.eventHandler=null;},addEventType:function(eventName){},attachToElement:function(element){if(this.element){OpenLayers.Event.stopObservingElement(this.element);}else{this.eventHandler=OpenLayers.Function.bindAsEventListener(this.handleBrowserEvent,this);this.clearMouseListener=OpenLayers.Function.bind(this.clearMouseCache,this);}
|
|
this.element=element;for(var i=0,len=this.BROWSER_EVENTS.length;i<len;i++){OpenLayers.Event.observe(element,this.BROWSER_EVENTS[i],this.eventHandler);}
|
|
OpenLayers.Event.observe(element,"dragstart",OpenLayers.Event.stop);},on:function(object){for(var type in object){if(type!="scope"&&object.hasOwnProperty(type)){this.register(type,object.scope,object[type]);}}},register:function(type,obj,func,priority){if(type in OpenLayers.Events&&!this.extensions[type]){this.extensions[type]=new OpenLayers.Events[type](this);}
|
|
if(func!=null){if(obj==null){obj=this.object;}
|
|
var listeners=this.listeners[type];if(!listeners){listeners=[];this.listeners[type]=listeners;this.extensionCount[type]=0;}
|
|
var listener={obj:obj,func:func};if(priority){listeners.splice(this.extensionCount[type],0,listener);if(typeof priority==="object"&&priority.extension){this.extensionCount[type]++;}}else{listeners.push(listener);}}},registerPriority:function(type,obj,func){this.register(type,obj,func,true);},un:function(object){for(var type in object){if(type!="scope"&&object.hasOwnProperty(type)){this.unregister(type,object.scope,object[type]);}}},unregister:function(type,obj,func){if(obj==null){obj=this.object;}
|
|
var listeners=this.listeners[type];if(listeners!=null){for(var i=0,len=listeners.length;i<len;i++){if(listeners[i].obj==obj&&listeners[i].func==func){listeners.splice(i,1);break;}}}},remove:function(type){if(this.listeners[type]!=null){this.listeners[type]=[];}},triggerEvent:function(type,evt){var listeners=this.listeners[type];if(!listeners||listeners.length==0){return undefined;}
|
|
if(evt==null){evt={};}
|
|
evt.object=this.object;evt.element=this.element;if(!evt.type){evt.type=type;}
|
|
listeners=listeners.slice();var continueChain;for(var i=0,len=listeners.length;i<len;i++){var callback=listeners[i];continueChain=callback.func.apply(callback.obj,[evt]);if((continueChain!=undefined)&&(continueChain==false)){break;}}
|
|
if(!this.fallThrough){OpenLayers.Event.stop(evt,true);}
|
|
return continueChain;},handleBrowserEvent:function(evt){var type=evt.type,listeners=this.listeners[type];if(!listeners||listeners.length==0){return;}
|
|
var touches=evt.touches;if(touches&&touches[0]){var x=0;var y=0;var num=touches.length;var touch;for(var i=0;i<num;++i){touch=this.getTouchClientXY(touches[i]);x+=touch.clientX;y+=touch.clientY;}
|
|
evt.clientX=x/num;evt.clientY=y/num;}
|
|
if(this.includeXY){evt.xy=this.getMousePosition(evt);}
|
|
this.triggerEvent(type,evt);},getTouchClientXY:function(evt){var win=window.olMockWin||window,winPageX=win.pageXOffset,winPageY=win.pageYOffset,x=evt.clientX,y=evt.clientY;if(evt.pageY===0&&Math.floor(y)>Math.floor(evt.pageY)||evt.pageX===0&&Math.floor(x)>Math.floor(evt.pageX)){x=x-winPageX;y=y-winPageY;}else if(y<(evt.pageY-winPageY)||x<(evt.pageX-winPageX)){x=evt.pageX-winPageX;y=evt.pageY-winPageY;}
|
|
evt.olClientX=x;evt.olClientY=y;return{clientX:x,clientY:y};},clearMouseCache:function(){this.element.scrolls=null;this.element.lefttop=null;this.element.offsets=null;},getMousePosition:function(evt){if(!this.includeXY){this.clearMouseCache();}else if(!this.element.hasScrollEvent){OpenLayers.Event.observe(window,"scroll",this.clearMouseListener);this.element.hasScrollEvent=true;}
|
|
if(!this.element.scrolls){var viewportElement=OpenLayers.Util.getViewportElement();this.element.scrolls=[window.pageXOffset||viewportElement.scrollLeft,window.pageYOffset||viewportElement.scrollTop];}
|
|
if(!this.element.lefttop){this.element.lefttop=[(document.documentElement.clientLeft||0),(document.documentElement.clientTop||0)];}
|
|
if(!this.element.offsets){this.element.offsets=OpenLayers.Util.pagePosition(this.element);}
|
|
return new OpenLayers.Pixel((evt.clientX+this.element.scrolls[0])-this.element.offsets[0]
|
|
-this.element.lefttop[0],(evt.clientY+this.element.scrolls[1])-this.element.offsets[1]
|
|
-this.element.lefttop[1]);},CLASS_NAME:"OpenLayers.Events"});OpenLayers.Events.buttonclick=OpenLayers.Class({target:null,events:['mousedown','mouseup','click','dblclick','touchstart','touchmove','touchend','keydown'],startRegEx:/^mousedown|touchstart$/,cancelRegEx:/^touchmove$/,completeRegEx:/^mouseup|touchend$/,initialize:function(target){this.target=target;for(var i=this.events.length-1;i>=0;--i){this.target.register(this.events[i],this,this.buttonClick,{extension:true});}},destroy:function(){for(var i=this.events.length-1;i>=0;--i){this.target.unregister(this.events[i],this,this.buttonClick);}
|
|
delete this.target;},getPressedButton:function(element){var depth=3,button;do{if(OpenLayers.Element.hasClass(element,"olButton")){button=element;break;}
|
|
element=element.parentNode;}while(--depth>0&&element);return button;},ignore:function(element){var depth=3,ignore=false;do{if(element.nodeName.toLowerCase()==='a'){ignore=true;break;}
|
|
element=element.parentNode;}while(--depth>0&&element);return ignore;},buttonClick:function(evt){var propagate=true,element=OpenLayers.Event.element(evt);if(element&&(OpenLayers.Event.isLeftClick(evt)||!~evt.type.indexOf("mouse"))){var button=this.getPressedButton(element);if(button){if(evt.type==="keydown"){switch(evt.keyCode){case OpenLayers.Event.KEY_RETURN:case OpenLayers.Event.KEY_SPACE:this.target.triggerEvent("buttonclick",{buttonElement:button});OpenLayers.Event.stop(evt);propagate=false;break;}}else if(this.startEvt){if(this.completeRegEx.test(evt.type)){var pos=OpenLayers.Util.pagePosition(button);var viewportElement=OpenLayers.Util.getViewportElement();var scrollTop=window.pageYOffset||viewportElement.scrollTop;var scrollLeft=window.pageXOffset||viewportElement.scrollLeft;pos[0]=pos[0]-scrollLeft;pos[1]=pos[1]-scrollTop;this.target.triggerEvent("buttonclick",{buttonElement:button,buttonXY:{x:this.startEvt.clientX-pos[0],y:this.startEvt.clientY-pos[1]}});}
|
|
if(this.cancelRegEx.test(evt.type)){delete this.startEvt;}
|
|
OpenLayers.Event.stop(evt);propagate=false;}
|
|
if(this.startRegEx.test(evt.type)){this.startEvt=evt;OpenLayers.Event.stop(evt);propagate=false;}}else{propagate=!this.ignore(OpenLayers.Event.element(evt));delete this.startEvt;}}
|
|
return propagate;}});OpenLayers.Projection=OpenLayers.Class({proj:null,projCode:null,titleRegEx:/\+title=[^\+]*/,initialize:function(projCode,options){OpenLayers.Util.extend(this,options);this.projCode=projCode;if(typeof Proj4js=="object"){this.proj=new Proj4js.Proj(projCode);}},getCode:function(){return this.proj?this.proj.srsCode:this.projCode;},getUnits:function(){return this.proj?this.proj.units:null;},toString:function(){return this.getCode();},equals:function(projection){var p=projection,equals=false;if(p){if(!(p instanceof OpenLayers.Projection)){p=new OpenLayers.Projection(p);}
|
|
if((typeof Proj4js=="object")&&this.proj.defData&&p.proj.defData){equals=this.proj.defData.replace(this.titleRegEx,"")==p.proj.defData.replace(this.titleRegEx,"");}else if(p.getCode){var source=this.getCode(),target=p.getCode();equals=source==target||!!OpenLayers.Projection.transforms[source]&&OpenLayers.Projection.transforms[source][target]===OpenLayers.Projection.nullTransform;}}
|
|
return equals;},destroy:function(){delete this.proj;delete this.projCode;},CLASS_NAME:"OpenLayers.Projection"});OpenLayers.Projection.transforms={};OpenLayers.Projection.defaults={"EPSG:4326":{units:"degrees",maxExtent:[-180,-90,180,90],yx:true},"CRS:84":{units:"degrees",maxExtent:[-180,-90,180,90]},"EPSG:900913":{units:"m",maxExtent:[-20037508.34,-20037508.34,20037508.34,20037508.34]}};OpenLayers.Projection.addTransform=function(from,to,method){if(method===OpenLayers.Projection.nullTransform){var defaults=OpenLayers.Projection.defaults[from];if(defaults&&!OpenLayers.Projection.defaults[to]){OpenLayers.Projection.defaults[to]=defaults;}}
|
|
if(!OpenLayers.Projection.transforms[from]){OpenLayers.Projection.transforms[from]={};}
|
|
OpenLayers.Projection.transforms[from][to]=method;};OpenLayers.Projection.transform=function(point,source,dest){if(source&&dest){if(!(source instanceof OpenLayers.Projection)){source=new OpenLayers.Projection(source);}
|
|
if(!(dest instanceof OpenLayers.Projection)){dest=new OpenLayers.Projection(dest);}
|
|
if(source.proj&&dest.proj){point=Proj4js.transform(source.proj,dest.proj,point);}else{var sourceCode=source.getCode();var destCode=dest.getCode();var transforms=OpenLayers.Projection.transforms;if(transforms[sourceCode]&&transforms[sourceCode][destCode]){transforms[sourceCode][destCode](point);}}}
|
|
return point;};OpenLayers.Projection.nullTransform=function(point){return point;};(function(){var pole=20037508.34;function inverseMercator(xy){xy.x=180*xy.x/pole;xy.y=180/Math.PI*(2*Math.atan(Math.exp((xy.y/pole)*Math.PI))-Math.PI/2);return xy;}
|
|
function forwardMercator(xy){xy.x=xy.x*pole/180;var y=Math.log(Math.tan((90+xy.y)*Math.PI/360))/Math.PI*pole;xy.y=Math.max(-20037508.34,Math.min(y,20037508.34));return xy;}
|
|
function map(base,codes){var add=OpenLayers.Projection.addTransform;var same=OpenLayers.Projection.nullTransform;var i,len,code,other,j;for(i=0,len=codes.length;i<len;++i){code=codes[i];add(base,code,forwardMercator);add(code,base,inverseMercator);for(j=i+1;j<len;++j){other=codes[j];add(code,other,same);add(other,code,same);}}}
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var mercator=["EPSG:900913","EPSG:3857","EPSG:102113","EPSG:102100"],geographic=["CRS:84","urn:ogc:def:crs:EPSG:6.6:4326","EPSG:4326"],i;for(i=mercator.length-1;i>=0;--i){map(mercator[i],geographic);}
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for(i=geographic.length-1;i>=0;--i){map(geographic[i],mercator);}})();OpenLayers.Map=OpenLayers.Class({Z_INDEX_BASE:{BaseLayer:100,Overlay:325,Feature:725,Popup:750,Control:1000},id:null,fractionalZoom:false,events:null,allOverlays:false,div:null,dragging:false,size:null,viewPortDiv:null,layerContainerOrigin:null,layerContainerDiv:null,layers:null,controls:null,popups:null,baseLayer:null,center:null,resolution:null,zoom:0,panRatio:1.5,options:null,tileSize:null,projection:"EPSG:4326",units:null,resolutions:null,maxResolution:null,minResolution:null,maxScale:null,minScale:null,maxExtent:null,minExtent:null,restrictedExtent:null,numZoomLevels:16,theme:null,displayProjection:null,tileManager:null,fallThrough:false,autoUpdateSize:true,eventListeners:null,panTween:null,panMethod:OpenLayers.Easing.Expo.easeOut,panDuration:50,zoomTween:null,zoomMethod:OpenLayers.Easing.Quad.easeOut,zoomDuration:20,paddingForPopups:null,layerContainerOriginPx:null,minPx:null,maxPx:null,initialize:function(div,options){if(arguments.length===1&&typeof div==="object"){options=div;div=options&&options.div;}
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this.tileSize=new OpenLayers.Size(OpenLayers.Map.TILE_WIDTH,OpenLayers.Map.TILE_HEIGHT);this.paddingForPopups=new OpenLayers.Bounds(15,15,15,15);this.theme=OpenLayers._getScriptLocation()+'theme/default/style.css';this.options=OpenLayers.Util.extend({},options);OpenLayers.Util.extend(this,options);var projCode=this.projection instanceof OpenLayers.Projection?this.projection.projCode:this.projection;OpenLayers.Util.applyDefaults(this,OpenLayers.Projection.defaults[projCode]);if(this.maxExtent&&!(this.maxExtent instanceof OpenLayers.Bounds)){this.maxExtent=new OpenLayers.Bounds(this.maxExtent);}
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if(this.minExtent&&!(this.minExtent instanceof OpenLayers.Bounds)){this.minExtent=new OpenLayers.Bounds(this.minExtent);}
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if(this.restrictedExtent&&!(this.restrictedExtent instanceof OpenLayers.Bounds)){this.restrictedExtent=new OpenLayers.Bounds(this.restrictedExtent);}
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if(this.center&&!(this.center instanceof OpenLayers.LonLat)){this.center=new OpenLayers.LonLat(this.center);}
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this.layers=[];this.id=OpenLayers.Util.createUniqueID("OpenLayers.Map_");this.div=OpenLayers.Util.getElement(div);if(!this.div){this.div=document.createElement("div");this.div.style.height="1px";this.div.style.width="1px";}
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OpenLayers.Element.addClass(this.div,'olMap');var id=this.id+"_OpenLayers_ViewPort";this.viewPortDiv=OpenLayers.Util.createDiv(id,null,null,null,"relative",null,"hidden");this.viewPortDiv.style.width="100%";this.viewPortDiv.style.height="100%";this.viewPortDiv.className="olMapViewport";this.div.appendChild(this.viewPortDiv);this.events=new OpenLayers.Events(this,this.viewPortDiv,null,this.fallThrough,{includeXY:true});if(this.tileManager){this.tileManager.addMap(this);}
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id=this.id+"_OpenLayers_Container";this.layerContainerDiv=OpenLayers.Util.createDiv(id);this.layerContainerDiv.style.zIndex=this.Z_INDEX_BASE['Popup']-1;this.layerContainerOriginPx={x:0,y:0};this.applyTransform();this.viewPortDiv.appendChild(this.layerContainerDiv);this.updateSize();if(this.eventListeners instanceof Object){this.events.on(this.eventListeners);}
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if(this.autoUpdateSize===true){this.updateSizeDestroy=OpenLayers.Function.bind(this.updateSize,this);OpenLayers.Event.observe(window,'resize',this.updateSizeDestroy);}
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if(this.theme){var addNode=true;var nodes=document.getElementsByTagName('link');for(var i=0,len=nodes.length;i<len;++i){if(OpenLayers.Util.isEquivalentUrl(nodes.item(i).href,this.theme)){addNode=false;break;}}
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if(addNode){var cssNode=document.createElement('link');cssNode.setAttribute('rel','stylesheet');cssNode.setAttribute('type','text/css');cssNode.setAttribute('href',this.theme);document.getElementsByTagName('head')[0].appendChild(cssNode);}}
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if(this.controls==null){this.controls=[];if(OpenLayers.Control!=null){if(OpenLayers.Control.Navigation){this.controls.push(new OpenLayers.Control.Navigation());}else if(OpenLayers.Control.TouchNavigation){this.controls.push(new OpenLayers.Control.TouchNavigation());}
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if(OpenLayers.Control.Zoom){this.controls.push(new OpenLayers.Control.Zoom());}else if(OpenLayers.Control.PanZoom){this.controls.push(new OpenLayers.Control.PanZoom());}
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if(OpenLayers.Control.ArgParser){this.controls.push(new OpenLayers.Control.ArgParser());}
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if(OpenLayers.Control.Attribution){this.controls.push(new OpenLayers.Control.Attribution());}}}
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for(var i=0,len=this.controls.length;i<len;i++){this.addControlToMap(this.controls[i]);}
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this.popups=[];this.unloadDestroy=OpenLayers.Function.bind(this.destroy,this);OpenLayers.Event.observe(window,'unload',this.unloadDestroy);if(options&&options.layers){delete this.center;delete this.zoom;this.addLayers(options.layers);if(options.center&&!this.getCenter()){this.setCenter(options.center,options.zoom);}}
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if(this.panMethod){this.panTween=new OpenLayers.Tween(this.panMethod);}
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if(this.zoomMethod&&this.applyTransform.transform){this.zoomTween=new OpenLayers.Tween(this.zoomMethod);}},getViewport:function(){return this.viewPortDiv;},render:function(div){this.div=OpenLayers.Util.getElement(div);OpenLayers.Element.addClass(this.div,'olMap');this.viewPortDiv.parentNode.removeChild(this.viewPortDiv);this.div.appendChild(this.viewPortDiv);this.updateSize();},unloadDestroy:null,updateSizeDestroy:null,destroy:function(){if(!this.unloadDestroy){return false;}
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|
if(this.panTween){this.panTween.stop();this.panTween=null;}
|
|
if(this.zoomTween){this.zoomTween.stop();this.zoomTween=null;}
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|
OpenLayers.Event.stopObserving(window,'unload',this.unloadDestroy);this.unloadDestroy=null;if(this.updateSizeDestroy){OpenLayers.Event.stopObserving(window,'resize',this.updateSizeDestroy);}
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|
this.paddingForPopups=null;if(this.controls!=null){for(var i=this.controls.length-1;i>=0;--i){this.controls[i].destroy();}
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|
this.controls=null;}
|
|
if(this.layers!=null){for(var i=this.layers.length-1;i>=0;--i){this.layers[i].destroy(false);}
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|
this.layers=null;}
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|
if(this.viewPortDiv&&this.viewPortDiv.parentNode){this.viewPortDiv.parentNode.removeChild(this.viewPortDiv);}
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|
this.viewPortDiv=null;if(this.tileManager){this.tileManager.removeMap(this);this.tileManager=null;}
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|
if(this.eventListeners){this.events.un(this.eventListeners);this.eventListeners=null;}
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|
this.events.destroy();this.events=null;this.options=null;},setOptions:function(options){var updatePxExtent=this.minPx&&options.restrictedExtent!=this.restrictedExtent;OpenLayers.Util.extend(this,options);updatePxExtent&&this.moveTo(this.getCachedCenter(),this.zoom,{forceZoomChange:true});},getTileSize:function(){return this.tileSize;},getBy:function(array,property,match){var test=(typeof match.test=="function");var found=OpenLayers.Array.filter(this[array],function(item){return item[property]==match||(test&&match.test(item[property]));});return found;},getLayersBy:function(property,match){return this.getBy("layers",property,match);},getLayersByName:function(match){return this.getLayersBy("name",match);},getLayersByClass:function(match){return this.getLayersBy("CLASS_NAME",match);},getControlsBy:function(property,match){return this.getBy("controls",property,match);},getControlsByClass:function(match){return this.getControlsBy("CLASS_NAME",match);},getLayer:function(id){var foundLayer=null;for(var i=0,len=this.layers.length;i<len;i++){var layer=this.layers[i];if(layer.id==id){foundLayer=layer;break;}}
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return foundLayer;},setLayerZIndex:function(layer,zIdx){layer.setZIndex(this.Z_INDEX_BASE[layer.isBaseLayer?'BaseLayer':'Overlay']
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+zIdx*5);},resetLayersZIndex:function(){for(var i=0,len=this.layers.length;i<len;i++){var layer=this.layers[i];this.setLayerZIndex(layer,i);}},addLayer:function(layer){for(var i=0,len=this.layers.length;i<len;i++){if(this.layers[i]==layer){return false;}}
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|
if(this.events.triggerEvent("preaddlayer",{layer:layer})===false){return false;}
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|
if(this.allOverlays){layer.isBaseLayer=false;}
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layer.div.className="olLayerDiv";layer.div.style.overflow="";this.setLayerZIndex(layer,this.layers.length);if(layer.isFixed){this.viewPortDiv.appendChild(layer.div);}else{this.layerContainerDiv.appendChild(layer.div);}
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this.layers.push(layer);layer.setMap(this);if(layer.isBaseLayer||(this.allOverlays&&!this.baseLayer)){if(this.baseLayer==null){this.setBaseLayer(layer);}else{layer.setVisibility(false);}}else{layer.redraw();}
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this.events.triggerEvent("addlayer",{layer:layer});layer.events.triggerEvent("added",{map:this,layer:layer});layer.afterAdd();return true;},addLayers:function(layers){for(var i=0,len=layers.length;i<len;i++){this.addLayer(layers[i]);}},removeLayer:function(layer,setNewBaseLayer){if(this.events.triggerEvent("preremovelayer",{layer:layer})===false){return;}
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if(setNewBaseLayer==null){setNewBaseLayer=true;}
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|
if(layer.isFixed){this.viewPortDiv.removeChild(layer.div);}else{this.layerContainerDiv.removeChild(layer.div);}
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OpenLayers.Util.removeItem(this.layers,layer);layer.removeMap(this);layer.map=null;if(this.baseLayer==layer){this.baseLayer=null;if(setNewBaseLayer){for(var i=0,len=this.layers.length;i<len;i++){var iLayer=this.layers[i];if(iLayer.isBaseLayer||this.allOverlays){this.setBaseLayer(iLayer);break;}}}}
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this.resetLayersZIndex();this.events.triggerEvent("removelayer",{layer:layer});layer.events.triggerEvent("removed",{map:this,layer:layer});},getNumLayers:function(){return this.layers.length;},getLayerIndex:function(layer){return OpenLayers.Util.indexOf(this.layers,layer);},setLayerIndex:function(layer,idx){var base=this.getLayerIndex(layer);if(idx<0){idx=0;}else if(idx>this.layers.length){idx=this.layers.length;}
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|
if(base!=idx){this.layers.splice(base,1);this.layers.splice(idx,0,layer);for(var i=0,len=this.layers.length;i<len;i++){this.setLayerZIndex(this.layers[i],i);}
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this.events.triggerEvent("changelayer",{layer:layer,property:"order"});if(this.allOverlays){if(idx===0){this.setBaseLayer(layer);}else if(this.baseLayer!==this.layers[0]){this.setBaseLayer(this.layers[0]);}}}},raiseLayer:function(layer,delta){var idx=this.getLayerIndex(layer)+delta;this.setLayerIndex(layer,idx);},setBaseLayer:function(newBaseLayer){if(newBaseLayer!=this.baseLayer){if(OpenLayers.Util.indexOf(this.layers,newBaseLayer)!=-1){var center=this.getCachedCenter();var newResolution=OpenLayers.Util.getResolutionFromScale(this.getScale(),newBaseLayer.units);if(this.baseLayer!=null&&!this.allOverlays){this.baseLayer.setVisibility(false);}
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|
this.baseLayer=newBaseLayer;if(!this.allOverlays||this.baseLayer.visibility){this.baseLayer.setVisibility(true);if(this.baseLayer.inRange===false){this.baseLayer.redraw();}}
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|
if(center!=null){var newZoom=this.getZoomForResolution(newResolution||this.resolution,true);this.setCenter(center,newZoom,false,true);}
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this.events.triggerEvent("changebaselayer",{layer:this.baseLayer});}}},addControl:function(control,px){this.controls.push(control);this.addControlToMap(control,px);},addControls:function(controls,pixels){var pxs=(arguments.length===1)?[]:pixels;for(var i=0,len=controls.length;i<len;i++){var ctrl=controls[i];var px=(pxs[i])?pxs[i]:null;this.addControl(ctrl,px);}},addControlToMap:function(control,px){control.outsideViewport=(control.div!=null);if(this.displayProjection&&!control.displayProjection){control.displayProjection=this.displayProjection;}
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|
control.setMap(this);var div=control.draw(px);if(div){if(!control.outsideViewport){div.style.zIndex=this.Z_INDEX_BASE['Control']+
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this.controls.length;this.viewPortDiv.appendChild(div);}}
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if(control.autoActivate){control.activate();}},getControl:function(id){var returnControl=null;for(var i=0,len=this.controls.length;i<len;i++){var control=this.controls[i];if(control.id==id){returnControl=control;break;}}
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return returnControl;},removeControl:function(control){if((control)&&(control==this.getControl(control.id))){if(control.div&&(control.div.parentNode==this.viewPortDiv)){this.viewPortDiv.removeChild(control.div);}
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OpenLayers.Util.removeItem(this.controls,control);}},addPopup:function(popup,exclusive){if(exclusive){for(var i=this.popups.length-1;i>=0;--i){this.removePopup(this.popups[i]);}}
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|
popup.map=this;this.popups.push(popup);var popupDiv=popup.draw();if(popupDiv){popupDiv.style.zIndex=this.Z_INDEX_BASE['Popup']+
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this.popups.length;this.layerContainerDiv.appendChild(popupDiv);}},removePopup:function(popup){OpenLayers.Util.removeItem(this.popups,popup);if(popup.div){try{this.layerContainerDiv.removeChild(popup.div);}
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catch(e){}}
|
|
popup.map=null;},getSize:function(){var size=null;if(this.size!=null){size=this.size.clone();}
|
|
return size;},updateSize:function(){var newSize=this.getCurrentSize();if(newSize&&!isNaN(newSize.h)&&!isNaN(newSize.w)){this.events.clearMouseCache();var oldSize=this.getSize();if(oldSize==null){this.size=oldSize=newSize;}
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|
if(!newSize.equals(oldSize)){this.size=newSize;for(var i=0,len=this.layers.length;i<len;i++){this.layers[i].onMapResize();}
|
|
var center=this.getCachedCenter();if(this.baseLayer!=null&¢er!=null){var zoom=this.getZoom();this.zoom=null;this.setCenter(center,zoom);}}}
|
|
this.events.triggerEvent("updatesize");},getCurrentSize:function(){var size=new OpenLayers.Size(this.div.clientWidth,this.div.clientHeight);if(size.w==0&&size.h==0||isNaN(size.w)&&isNaN(size.h)){size.w=this.div.offsetWidth;size.h=this.div.offsetHeight;}
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|
if(size.w==0&&size.h==0||isNaN(size.w)&&isNaN(size.h)){size.w=parseInt(this.div.style.width);size.h=parseInt(this.div.style.height);}
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return size;},calculateBounds:function(center,resolution){var extent=null;if(center==null){center=this.getCachedCenter();}
|
|
if(resolution==null){resolution=this.getResolution();}
|
|
if((center!=null)&&(resolution!=null)){var halfWDeg=(this.size.w*resolution)/2;var halfHDeg=(this.size.h*resolution)/2;extent=new OpenLayers.Bounds(center.lon-halfWDeg,center.lat-halfHDeg,center.lon+halfWDeg,center.lat+halfHDeg);}
|
|
return extent;},getCenter:function(){var center=null;var cachedCenter=this.getCachedCenter();if(cachedCenter){center=cachedCenter.clone();}
|
|
return center;},getCachedCenter:function(){if(!this.center&&this.size){this.center=this.getLonLatFromViewPortPx({x:this.size.w/2,y:this.size.h/2});}
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return this.center;},getZoom:function(){return this.zoom;},pan:function(dx,dy,options){options=OpenLayers.Util.applyDefaults(options,{animate:true,dragging:false});if(options.dragging){if(dx!=0||dy!=0){this.moveByPx(dx,dy);}}else{var centerPx=this.getViewPortPxFromLonLat(this.getCachedCenter());var newCenterPx=centerPx.add(dx,dy);if(this.dragging||!newCenterPx.equals(centerPx)){var newCenterLonLat=this.getLonLatFromViewPortPx(newCenterPx);if(options.animate){this.panTo(newCenterLonLat);}else{this.moveTo(newCenterLonLat);if(this.dragging){this.dragging=false;this.events.triggerEvent("moveend");}}}}},panTo:function(lonlat){if(this.panTween&&this.getExtent().scale(this.panRatio).containsLonLat(lonlat)){var center=this.getCachedCenter();if(lonlat.equals(center)){return;}
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var from=this.getPixelFromLonLat(center);var to=this.getPixelFromLonLat(lonlat);var vector={x:to.x-from.x,y:to.y-from.y};var last={x:0,y:0};this.panTween.start({x:0,y:0},vector,this.panDuration,{callbacks:{eachStep:OpenLayers.Function.bind(function(px){var x=px.x-last.x,y=px.y-last.y;this.moveByPx(x,y);last.x=Math.round(px.x);last.y=Math.round(px.y);},this),done:OpenLayers.Function.bind(function(px){this.moveTo(lonlat);this.dragging=false;this.events.triggerEvent("moveend");},this)}});}else{this.setCenter(lonlat);}},setCenter:function(lonlat,zoom,dragging,forceZoomChange){if(this.panTween){this.panTween.stop();}
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|
if(this.zoomTween){this.zoomTween.stop();}
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this.moveTo(lonlat,zoom,{'dragging':dragging,'forceZoomChange':forceZoomChange});},moveByPx:function(dx,dy){var hw=this.size.w/2;var hh=this.size.h/2;var x=hw+dx;var y=hh+dy;var wrapDateLine=this.baseLayer.wrapDateLine;var xRestriction=0;var yRestriction=0;if(this.restrictedExtent){xRestriction=hw;yRestriction=hh;wrapDateLine=false;}
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dx=wrapDateLine||x<=this.maxPx.x-xRestriction&&x>=this.minPx.x+xRestriction?Math.round(dx):0;dy=y<=this.maxPx.y-yRestriction&&y>=this.minPx.y+yRestriction?Math.round(dy):0;if(dx||dy){if(!this.dragging){this.dragging=true;this.events.triggerEvent("movestart");}
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|
this.center=null;if(dx){this.layerContainerOriginPx.x-=dx;this.minPx.x-=dx;this.maxPx.x-=dx;}
|
|
if(dy){this.layerContainerOriginPx.y-=dy;this.minPx.y-=dy;this.maxPx.y-=dy;}
|
|
this.applyTransform();var layer,i,len;for(i=0,len=this.layers.length;i<len;++i){layer=this.layers[i];if(layer.visibility&&(layer===this.baseLayer||layer.inRange)){layer.moveByPx(dx,dy);layer.events.triggerEvent("move");}}
|
|
this.events.triggerEvent("move");}},adjustZoom:function(zoom){if(this.baseLayer&&this.baseLayer.wrapDateLine){var resolution,resolutions=this.baseLayer.resolutions,maxResolution=this.getMaxExtent().getWidth()/this.size.w;if(this.getResolutionForZoom(zoom)>maxResolution){if(this.fractionalZoom){zoom=this.getZoomForResolution(maxResolution);}else{for(var i=zoom|0,ii=resolutions.length;i<ii;++i){if(resolutions[i]<=maxResolution){zoom=i;break;}}}}}
|
|
return zoom;},getMinZoom:function(){return this.adjustZoom(0);},moveTo:function(lonlat,zoom,options){if(lonlat!=null&&!(lonlat instanceof OpenLayers.LonLat)){lonlat=new OpenLayers.LonLat(lonlat);}
|
|
if(!options){options={};}
|
|
if(zoom!=null){zoom=parseFloat(zoom);if(!this.fractionalZoom){zoom=Math.round(zoom);}}
|
|
var requestedZoom=zoom;zoom=this.adjustZoom(zoom);if(zoom!==requestedZoom){lonlat=this.getCenter();}
|
|
var dragging=options.dragging||this.dragging;var forceZoomChange=options.forceZoomChange;if(!this.getCachedCenter()&&!this.isValidLonLat(lonlat)){lonlat=this.maxExtent.getCenterLonLat();this.center=lonlat.clone();}
|
|
if(this.restrictedExtent!=null){if(lonlat==null){lonlat=this.center;}
|
|
if(zoom==null){zoom=this.getZoom();}
|
|
var resolution=this.getResolutionForZoom(zoom);var extent=this.calculateBounds(lonlat,resolution);if(!this.restrictedExtent.containsBounds(extent)){var maxCenter=this.restrictedExtent.getCenterLonLat();if(extent.getWidth()>this.restrictedExtent.getWidth()){lonlat=new OpenLayers.LonLat(maxCenter.lon,lonlat.lat);}else if(extent.left<this.restrictedExtent.left){lonlat=lonlat.add(this.restrictedExtent.left-
|
|
extent.left,0);}else if(extent.right>this.restrictedExtent.right){lonlat=lonlat.add(this.restrictedExtent.right-
|
|
extent.right,0);}
|
|
if(extent.getHeight()>this.restrictedExtent.getHeight()){lonlat=new OpenLayers.LonLat(lonlat.lon,maxCenter.lat);}else if(extent.bottom<this.restrictedExtent.bottom){lonlat=lonlat.add(0,this.restrictedExtent.bottom-
|
|
extent.bottom);}
|
|
else if(extent.top>this.restrictedExtent.top){lonlat=lonlat.add(0,this.restrictedExtent.top-
|
|
extent.top);}}}
|
|
var zoomChanged=forceZoomChange||((this.isValidZoomLevel(zoom))&&(zoom!=this.getZoom()));var centerChanged=(this.isValidLonLat(lonlat))&&(!lonlat.equals(this.center));if(zoomChanged||centerChanged||dragging){dragging||this.events.triggerEvent("movestart",{zoomChanged:zoomChanged});if(centerChanged){if(!zoomChanged&&this.center){this.centerLayerContainer(lonlat);}
|
|
this.center=lonlat.clone();}
|
|
var res=zoomChanged?this.getResolutionForZoom(zoom):this.getResolution();if(zoomChanged||this.layerContainerOrigin==null){this.layerContainerOrigin=this.getCachedCenter();this.layerContainerOriginPx.x=0;this.layerContainerOriginPx.y=0;this.applyTransform();var maxExtent=this.getMaxExtent({restricted:true});var maxExtentCenter=maxExtent.getCenterLonLat();var lonDelta=this.center.lon-maxExtentCenter.lon;var latDelta=maxExtentCenter.lat-this.center.lat;var extentWidth=Math.round(maxExtent.getWidth()/res);var extentHeight=Math.round(maxExtent.getHeight()/res);this.minPx={x:(this.size.w-extentWidth)/2-lonDelta/res,y:(this.size.h-extentHeight)/2-latDelta/res};this.maxPx={x:this.minPx.x+Math.round(maxExtent.getWidth()/res),y:this.minPx.y+Math.round(maxExtent.getHeight()/res)};}
|
|
if(zoomChanged){this.zoom=zoom;this.resolution=res;}
|
|
var bounds=this.getExtent();if(this.baseLayer.visibility){this.baseLayer.moveTo(bounds,zoomChanged,options.dragging);options.dragging||this.baseLayer.events.triggerEvent("moveend",{zoomChanged:zoomChanged});}
|
|
bounds=this.baseLayer.getExtent();for(var i=this.layers.length-1;i>=0;--i){var layer=this.layers[i];if(layer!==this.baseLayer&&!layer.isBaseLayer){var inRange=layer.calculateInRange();if(layer.inRange!=inRange){layer.inRange=inRange;if(!inRange){layer.display(false);}}
|
|
if(inRange&&layer.visibility){layer.moveTo(bounds,zoomChanged,options.dragging);options.dragging||layer.events.triggerEvent("moveend",{zoomChanged:zoomChanged});}}}
|
|
this.events.triggerEvent("move");dragging||this.events.triggerEvent("moveend");if(zoomChanged){for(var i=0,len=this.popups.length;i<len;i++){this.popups[i].updatePosition();}
|
|
this.events.triggerEvent("zoomend");}}},centerLayerContainer:function(lonlat){var originPx=this.getViewPortPxFromLonLat(this.layerContainerOrigin);var newPx=this.getViewPortPxFromLonLat(lonlat);if((originPx!=null)&&(newPx!=null)){var oldLeft=this.layerContainerOriginPx.x;var oldTop=this.layerContainerOriginPx.y;var newLeft=Math.round(originPx.x-newPx.x);var newTop=Math.round(originPx.y-newPx.y);this.applyTransform((this.layerContainerOriginPx.x=newLeft),(this.layerContainerOriginPx.y=newTop));var dx=oldLeft-newLeft;var dy=oldTop-newTop;this.minPx.x-=dx;this.maxPx.x-=dx;this.minPx.y-=dy;this.maxPx.y-=dy;}},isValidZoomLevel:function(zoomLevel){return((zoomLevel!=null)&&(zoomLevel>=0)&&(zoomLevel<this.getNumZoomLevels()));},isValidLonLat:function(lonlat){var valid=false;if(lonlat!=null){var maxExtent=this.getMaxExtent();var worldBounds=this.baseLayer.wrapDateLine&&maxExtent;valid=maxExtent.containsLonLat(lonlat,{worldBounds:worldBounds});}
|
|
return valid;},getProjection:function(){var projection=this.getProjectionObject();return projection?projection.getCode():null;},getProjectionObject:function(){var projection=null;if(this.baseLayer!=null){projection=this.baseLayer.projection;}
|
|
return projection;},getMaxResolution:function(){var maxResolution=null;if(this.baseLayer!=null){maxResolution=this.baseLayer.maxResolution;}
|
|
return maxResolution;},getMaxExtent:function(options){var maxExtent=null;if(options&&options.restricted&&this.restrictedExtent){maxExtent=this.restrictedExtent;}else if(this.baseLayer!=null){maxExtent=this.baseLayer.maxExtent;}
|
|
return maxExtent;},getNumZoomLevels:function(){var numZoomLevels=null;if(this.baseLayer!=null){numZoomLevels=this.baseLayer.numZoomLevels;}
|
|
return numZoomLevels;},getExtent:function(){var extent=null;if(this.baseLayer!=null){extent=this.baseLayer.getExtent();}
|
|
return extent;},getResolution:function(){var resolution=null;if(this.baseLayer!=null){resolution=this.baseLayer.getResolution();}else if(this.allOverlays===true&&this.layers.length>0){resolution=this.layers[0].getResolution();}
|
|
return resolution;},getUnits:function(){var units=null;if(this.baseLayer!=null){units=this.baseLayer.units;}
|
|
return units;},getScale:function(){var scale=null;if(this.baseLayer!=null){var res=this.getResolution();var units=this.baseLayer.units;scale=OpenLayers.Util.getScaleFromResolution(res,units);}
|
|
return scale;},getZoomForExtent:function(bounds,closest){var zoom=null;if(this.baseLayer!=null){zoom=this.baseLayer.getZoomForExtent(bounds,closest);}
|
|
return zoom;},getResolutionForZoom:function(zoom){var resolution=null;if(this.baseLayer){resolution=this.baseLayer.getResolutionForZoom(zoom);}
|
|
return resolution;},getZoomForResolution:function(resolution,closest){var zoom=null;if(this.baseLayer!=null){zoom=this.baseLayer.getZoomForResolution(resolution,closest);}
|
|
return zoom;},zoomTo:function(zoom,xy){var map=this;if(map.isValidZoomLevel(zoom)){if(map.baseLayer.wrapDateLine){zoom=map.adjustZoom(zoom);}
|
|
if(map.zoomTween){var currentRes=map.getResolution(),targetRes=map.getResolutionForZoom(zoom),start={scale:1},end={scale:currentRes/targetRes};if(map.zoomTween.playing&&map.zoomTween.duration<3*map.zoomDuration){map.zoomTween.finish={scale:map.zoomTween.finish.scale*end.scale};}else{if(!xy){var size=map.getSize();xy={x:size.w/2,y:size.h/2};}
|
|
map.zoomTween.start(start,end,map.zoomDuration,{minFrameRate:50,callbacks:{eachStep:function(data){var containerOrigin=map.layerContainerOriginPx,scale=data.scale,dx=((scale-1)*(containerOrigin.x-xy.x))|0,dy=((scale-1)*(containerOrigin.y-xy.y))|0;map.applyTransform(containerOrigin.x+dx,containerOrigin.y+dy,scale);},done:function(data){map.applyTransform();var resolution=map.getResolution()/data.scale,zoom=map.getZoomForResolution(resolution,true)
|
|
map.moveTo(map.getZoomTargetCenter(xy,resolution),zoom,true);}}});}}else{var center=xy?map.getZoomTargetCenter(xy,map.getResolutionForZoom(zoom)):null;map.setCenter(center,zoom);}}},zoomIn:function(){this.zoomTo(this.getZoom()+1);},zoomOut:function(){this.zoomTo(this.getZoom()-1);},zoomToExtent:function(bounds,closest){if(!(bounds instanceof OpenLayers.Bounds)){bounds=new OpenLayers.Bounds(bounds);}
|
|
var center=bounds.getCenterLonLat();if(this.baseLayer.wrapDateLine){var maxExtent=this.getMaxExtent();bounds=bounds.clone();while(bounds.right<bounds.left){bounds.right+=maxExtent.getWidth();}
|
|
center=bounds.getCenterLonLat().wrapDateLine(maxExtent);}
|
|
this.setCenter(center,this.getZoomForExtent(bounds,closest));},zoomToMaxExtent:function(options){var restricted=(options)?options.restricted:true;var maxExtent=this.getMaxExtent({'restricted':restricted});this.zoomToExtent(maxExtent);},zoomToScale:function(scale,closest){var res=OpenLayers.Util.getResolutionFromScale(scale,this.baseLayer.units);var halfWDeg=(this.size.w*res)/2;var halfHDeg=(this.size.h*res)/2;var center=this.getCachedCenter();var extent=new OpenLayers.Bounds(center.lon-halfWDeg,center.lat-halfHDeg,center.lon+halfWDeg,center.lat+halfHDeg);this.zoomToExtent(extent,closest);},getLonLatFromViewPortPx:function(viewPortPx){var lonlat=null;if(this.baseLayer!=null){lonlat=this.baseLayer.getLonLatFromViewPortPx(viewPortPx);}
|
|
return lonlat;},getViewPortPxFromLonLat:function(lonlat){var px=null;if(this.baseLayer!=null){px=this.baseLayer.getViewPortPxFromLonLat(lonlat);}
|
|
return px;},getZoomTargetCenter:function(xy,resolution){var lonlat=null,size=this.getSize(),deltaX=size.w/2-xy.x,deltaY=xy.y-size.h/2,zoomPoint=this.getLonLatFromPixel(xy);if(zoomPoint){lonlat=new OpenLayers.LonLat(zoomPoint.lon+deltaX*resolution,zoomPoint.lat+deltaY*resolution);}
|
|
return lonlat;},getLonLatFromPixel:function(px){return this.getLonLatFromViewPortPx(px);},getPixelFromLonLat:function(lonlat){var px=this.getViewPortPxFromLonLat(lonlat);px.x=Math.round(px.x);px.y=Math.round(px.y);return px;},getGeodesicPixelSize:function(px){var lonlat=px?this.getLonLatFromPixel(px):(this.getCachedCenter()||new OpenLayers.LonLat(0,0));var res=this.getResolution();var left=lonlat.add(-res/2,0);var right=lonlat.add(res/2,0);var bottom=lonlat.add(0,-res/2);var top=lonlat.add(0,res/2);var dest=new OpenLayers.Projection("EPSG:4326");var source=this.getProjectionObject()||dest;if(!source.equals(dest)){left.transform(source,dest);right.transform(source,dest);bottom.transform(source,dest);top.transform(source,dest);}
|
|
return new OpenLayers.Size(OpenLayers.Util.distVincenty(left,right),OpenLayers.Util.distVincenty(bottom,top));},getViewPortPxFromLayerPx:function(layerPx){var viewPortPx=null;if(layerPx!=null){var dX=this.layerContainerOriginPx.x;var dY=this.layerContainerOriginPx.y;viewPortPx=layerPx.add(dX,dY);}
|
|
return viewPortPx;},getLayerPxFromViewPortPx:function(viewPortPx){var layerPx=null;if(viewPortPx!=null){var dX=-this.layerContainerOriginPx.x;var dY=-this.layerContainerOriginPx.y;layerPx=viewPortPx.add(dX,dY);if(isNaN(layerPx.x)||isNaN(layerPx.y)){layerPx=null;}}
|
|
return layerPx;},getLonLatFromLayerPx:function(px){px=this.getViewPortPxFromLayerPx(px);return this.getLonLatFromViewPortPx(px);},getLayerPxFromLonLat:function(lonlat){var px=this.getPixelFromLonLat(lonlat);return this.getLayerPxFromViewPortPx(px);},applyTransform:function(x,y,scale){scale=scale||1;var origin=this.layerContainerOriginPx,needTransform=scale!==1;x=x||origin.x;y=y||origin.y;var style=this.layerContainerDiv.style,transform=this.applyTransform.transform,template=this.applyTransform.template;if(transform===undefined){transform=OpenLayers.Util.vendorPrefix.style('transform');this.applyTransform.transform=transform;if(transform){var computedStyle=OpenLayers.Element.getStyle(this.viewPortDiv,OpenLayers.Util.vendorPrefix.css('transform'));if(!computedStyle||computedStyle!=='none'){template=['translate3d(',',0) ','scale3d(',',1)'];style[transform]=[template[0],'0,0',template[1]].join('');}
|
|
if(!template||!~style[transform].indexOf(template[0])){template=['translate(',') ','scale(',')'];}
|
|
this.applyTransform.template=template;}}
|
|
if(transform!==null&&(template[0]==='translate3d('||needTransform===true)){if(needTransform===true&&template[0]==='translate('){x-=origin.x;y-=origin.y;style.left=origin.x+'px';style.top=origin.y+'px';}
|
|
style[transform]=[template[0],x,'px,',y,'px',template[1],template[2],scale,',',scale,template[3]].join('');}else{style.left=x+'px';style.top=y+'px';if(transform!==null){style[transform]='';}}},CLASS_NAME:"OpenLayers.Map"});OpenLayers.Map.TILE_WIDTH=256;OpenLayers.Map.TILE_HEIGHT=256;OpenLayers.Handler=OpenLayers.Class({id:null,control:null,map:null,keyMask:null,active:false,evt:null,initialize:function(control,callbacks,options){OpenLayers.Util.extend(this,options);this.control=control;this.callbacks=callbacks;var map=this.map||control.map;if(map){this.setMap(map);}
|
|
this.id=OpenLayers.Util.createUniqueID(this.CLASS_NAME+"_");},setMap:function(map){this.map=map;},checkModifiers:function(evt){if(this.keyMask==null){return true;}
|
|
var keyModifiers=(evt.shiftKey?OpenLayers.Handler.MOD_SHIFT:0)|(evt.ctrlKey?OpenLayers.Handler.MOD_CTRL:0)|(evt.altKey?OpenLayers.Handler.MOD_ALT:0)|(evt.metaKey?OpenLayers.Handler.MOD_META:0);return(keyModifiers==this.keyMask);},activate:function(){if(this.active){return false;}
|
|
var events=OpenLayers.Events.prototype.BROWSER_EVENTS;for(var i=0,len=events.length;i<len;i++){if(this[events[i]]){this.register(events[i],this[events[i]]);}}
|
|
this.active=true;return true;},deactivate:function(){if(!this.active){return false;}
|
|
var events=OpenLayers.Events.prototype.BROWSER_EVENTS;for(var i=0,len=events.length;i<len;i++){if(this[events[i]]){this.unregister(events[i],this[events[i]]);}}
|
|
this.active=false;return true;},callback:function(name,args){if(name&&this.callbacks[name]){this.callbacks[name].apply(this.control,args);}},register:function(name,method){this.map.events.registerPriority(name,this,method);this.map.events.registerPriority(name,this,this.setEvent);},unregister:function(name,method){this.map.events.unregister(name,this,method);this.map.events.unregister(name,this,this.setEvent);},setEvent:function(evt){this.evt=evt;return true;},destroy:function(){this.deactivate();this.control=this.map=null;},CLASS_NAME:"OpenLayers.Handler"});OpenLayers.Handler.MOD_NONE=0;OpenLayers.Handler.MOD_SHIFT=1;OpenLayers.Handler.MOD_CTRL=2;OpenLayers.Handler.MOD_ALT=4;OpenLayers.Handler.MOD_META=8;OpenLayers.Handler.Click=OpenLayers.Class(OpenLayers.Handler,{delay:300,single:true,'double':false,pixelTolerance:0,dblclickTolerance:13,stopSingle:false,stopDouble:false,timerId:null,touch:false,down:null,last:null,first:null,rightclickTimerId:null,touchstart:function(evt){if(!this.touch){this.unregisterMouseListeners();this.touch=true;}
|
|
this.down=this.getEventInfo(evt);this.last=this.getEventInfo(evt);return true;},touchmove:function(evt){this.last=this.getEventInfo(evt);return true;},touchend:function(evt){if(this.down){evt.xy=this.last.xy;evt.lastTouches=this.last.touches;this.handleSingle(evt);this.down=null;}
|
|
return true;},unregisterMouseListeners:function(){this.map.events.un({mousedown:this.mousedown,mouseup:this.mouseup,click:this.click,dblclick:this.dblclick,scope:this});},mousedown:function(evt){this.down=this.getEventInfo(evt);this.last=this.getEventInfo(evt);return true;},mouseup:function(evt){var propagate=true;if(this.checkModifiers(evt)&&this.control.handleRightClicks&&OpenLayers.Event.isRightClick(evt)){propagate=this.rightclick(evt);}
|
|
return propagate;},rightclick:function(evt){if(this.passesTolerance(evt)){if(this.rightclickTimerId!=null){this.clearTimer();this.callback('dblrightclick',[evt]);return!this.stopDouble;}else{var clickEvent=this['double']?OpenLayers.Util.extend({},evt):this.callback('rightclick',[evt]);var delayedRightCall=OpenLayers.Function.bind(this.delayedRightCall,this,clickEvent);this.rightclickTimerId=window.setTimeout(delayedRightCall,this.delay);}}
|
|
return!this.stopSingle;},delayedRightCall:function(evt){this.rightclickTimerId=null;if(evt){this.callback('rightclick',[evt]);}},click:function(evt){if(!this.last){this.last=this.getEventInfo(evt);}
|
|
this.handleSingle(evt);return!this.stopSingle;},dblclick:function(evt){this.handleDouble(evt);return!this.stopDouble;},handleDouble:function(evt){if(this.passesDblclickTolerance(evt)){if(this["double"]){this.callback("dblclick",[evt]);}
|
|
this.clearTimer();}},handleSingle:function(evt){if(this.passesTolerance(evt)){if(this.timerId!=null){if(this.last.touches&&this.last.touches.length===1){if(this["double"]){OpenLayers.Event.preventDefault(evt);}
|
|
this.handleDouble(evt);}
|
|
if(!this.last.touches||this.last.touches.length!==2){this.clearTimer();}}else{this.first=this.getEventInfo(evt);var clickEvent=this.single?OpenLayers.Util.extend({},evt):null;this.queuePotentialClick(clickEvent);}}},queuePotentialClick:function(evt){this.timerId=window.setTimeout(OpenLayers.Function.bind(this.delayedCall,this,evt),this.delay);},passesTolerance:function(evt){var passes=true;if(this.pixelTolerance!=null&&this.down&&this.down.xy){passes=this.pixelTolerance>=this.down.xy.distanceTo(evt.xy);if(passes&&this.touch&&this.down.touches.length===this.last.touches.length){for(var i=0,ii=this.down.touches.length;i<ii;++i){if(this.getTouchDistance(this.down.touches[i],this.last.touches[i])>this.pixelTolerance){passes=false;break;}}}}
|
|
return passes;},getTouchDistance:function(from,to){return Math.sqrt(Math.pow(from.clientX-to.clientX,2)+
|
|
Math.pow(from.clientY-to.clientY,2));},passesDblclickTolerance:function(evt){var passes=true;if(this.down&&this.first){passes=this.down.xy.distanceTo(this.first.xy)<=this.dblclickTolerance;}
|
|
return passes;},clearTimer:function(){if(this.timerId!=null){window.clearTimeout(this.timerId);this.timerId=null;}
|
|
if(this.rightclickTimerId!=null){window.clearTimeout(this.rightclickTimerId);this.rightclickTimerId=null;}},delayedCall:function(evt){this.timerId=null;if(evt){this.callback("click",[evt]);}},getEventInfo:function(evt){var touches;if(evt.touches){var len=evt.touches.length;touches=new Array(len);var touch;for(var i=0;i<len;i++){touch=evt.touches[i];touches[i]={clientX:touch.olClientX,clientY:touch.olClientY};}}
|
|
return{xy:evt.xy,touches:touches};},deactivate:function(){var deactivated=false;if(OpenLayers.Handler.prototype.deactivate.apply(this,arguments)){this.clearTimer();this.down=null;this.first=null;this.last=null;this.touch=false;deactivated=true;}
|
|
return deactivated;},CLASS_NAME:"OpenLayers.Handler.Click"});OpenLayers.Control=OpenLayers.Class({id:null,map:null,div:null,type:null,allowSelection:false,displayClass:"",title:"",autoActivate:false,active:null,handlerOptions:null,handler:null,eventListeners:null,events:null,initialize:function(options){this.displayClass=this.CLASS_NAME.replace("OpenLayers.","ol").replace(/\./g,"");OpenLayers.Util.extend(this,options);this.events=new OpenLayers.Events(this);if(this.eventListeners instanceof Object){this.events.on(this.eventListeners);}
|
|
if(this.id==null){this.id=OpenLayers.Util.createUniqueID(this.CLASS_NAME+"_");}},destroy:function(){if(this.events){if(this.eventListeners){this.events.un(this.eventListeners);}
|
|
this.events.destroy();this.events=null;}
|
|
this.eventListeners=null;if(this.handler){this.handler.destroy();this.handler=null;}
|
|
if(this.handlers){for(var key in this.handlers){if(this.handlers.hasOwnProperty(key)&&typeof this.handlers[key].destroy=="function"){this.handlers[key].destroy();}}
|
|
this.handlers=null;}
|
|
if(this.map){this.map.removeControl(this);this.map=null;}
|
|
this.div=null;},setMap:function(map){this.map=map;if(this.handler){this.handler.setMap(map);}},draw:function(px){if(this.div==null){this.div=OpenLayers.Util.createDiv(this.id);this.div.className=this.displayClass;if(!this.allowSelection){this.div.className+=" olControlNoSelect";this.div.setAttribute("unselectable","on",0);this.div.onselectstart=OpenLayers.Function.False;}
|
|
if(this.title!=""){this.div.title=this.title;}}
|
|
if(px!=null){this.position=px.clone();}
|
|
this.moveTo(this.position);return this.div;},moveTo:function(px){if((px!=null)&&(this.div!=null)){this.div.style.left=px.x+"px";this.div.style.top=px.y+"px";}},activate:function(){if(this.active){return false;}
|
|
if(this.handler){this.handler.activate();}
|
|
this.active=true;if(this.map){OpenLayers.Element.addClass(this.map.viewPortDiv,this.displayClass.replace(/ /g,"")+"Active");}
|
|
this.events.triggerEvent("activate");return true;},deactivate:function(){if(this.active){if(this.handler){this.handler.deactivate();}
|
|
this.active=false;if(this.map){OpenLayers.Element.removeClass(this.map.viewPortDiv,this.displayClass.replace(/ /g,"")+"Active");}
|
|
this.events.triggerEvent("deactivate");return true;}
|
|
return false;},CLASS_NAME:"OpenLayers.Control"});OpenLayers.Control.TYPE_BUTTON=1;OpenLayers.Control.TYPE_TOGGLE=2;OpenLayers.Control.TYPE_TOOL=3;OpenLayers.Handler.Drag=OpenLayers.Class(OpenLayers.Handler,{started:false,stopDown:true,dragging:false,touch:false,last:null,start:null,lastMoveEvt:null,oldOnselectstart:null,interval:0,timeoutId:null,documentDrag:false,documentEvents:null,initialize:function(control,callbacks,options){OpenLayers.Handler.prototype.initialize.apply(this,arguments);if(this.documentDrag===true){var me=this;this._docMove=function(evt){me.mousemove({xy:{x:evt.clientX,y:evt.clientY},element:document});};this._docUp=function(evt){me.mouseup({xy:{x:evt.clientX,y:evt.clientY}});};}},dragstart:function(evt){var propagate=true;this.dragging=false;if(this.checkModifiers(evt)&&(OpenLayers.Event.isLeftClick(evt)||OpenLayers.Event.isSingleTouch(evt))){this.started=true;this.start=evt.xy;this.last=evt.xy;OpenLayers.Element.addClass(this.map.viewPortDiv,"olDragDown");this.down(evt);this.callback("down",[evt.xy]);OpenLayers.Event.preventDefault(evt);if(!this.oldOnselectstart){this.oldOnselectstart=document.onselectstart?document.onselectstart:OpenLayers.Function.True;}
|
|
document.onselectstart=OpenLayers.Function.False;propagate=!this.stopDown;}else{this.started=false;this.start=null;this.last=null;}
|
|
return propagate;},dragmove:function(evt){this.lastMoveEvt=evt;if(this.started&&!this.timeoutId&&(evt.xy.x!=this.last.x||evt.xy.y!=this.last.y)){if(this.documentDrag===true&&this.documentEvents){if(evt.element===document){this.adjustXY(evt);this.setEvent(evt);}else{this.removeDocumentEvents();}}
|
|
if(this.interval>0){this.timeoutId=setTimeout(OpenLayers.Function.bind(this.removeTimeout,this),this.interval);}
|
|
this.dragging=true;this.move(evt);this.callback("move",[evt.xy]);if(!this.oldOnselectstart){this.oldOnselectstart=document.onselectstart;document.onselectstart=OpenLayers.Function.False;}
|
|
this.last=evt.xy;}
|
|
return true;},dragend:function(evt){if(this.started){if(this.documentDrag===true&&this.documentEvents){this.adjustXY(evt);this.removeDocumentEvents();}
|
|
var dragged=(this.start!=this.last);this.started=false;this.dragging=false;OpenLayers.Element.removeClass(this.map.viewPortDiv,"olDragDown");this.up(evt);this.callback("up",[evt.xy]);if(dragged){this.callback("done",[evt.xy]);}
|
|
document.onselectstart=this.oldOnselectstart;}
|
|
return true;},down:function(evt){},move:function(evt){},up:function(evt){},out:function(evt){},mousedown:function(evt){return this.dragstart(evt);},touchstart:function(evt){if(!this.touch){this.touch=true;this.map.events.un({mousedown:this.mousedown,mouseup:this.mouseup,mousemove:this.mousemove,click:this.click,scope:this});}
|
|
return this.dragstart(evt);},mousemove:function(evt){return this.dragmove(evt);},touchmove:function(evt){return this.dragmove(evt);},removeTimeout:function(){this.timeoutId=null;if(this.dragging){this.mousemove(this.lastMoveEvt);}},mouseup:function(evt){return this.dragend(evt);},touchend:function(evt){evt.xy=this.last;return this.dragend(evt);},mouseout:function(evt){if(this.started&&OpenLayers.Util.mouseLeft(evt,this.map.viewPortDiv)){if(this.documentDrag===true){this.addDocumentEvents();}else{var dragged=(this.start!=this.last);this.started=false;this.dragging=false;OpenLayers.Element.removeClass(this.map.viewPortDiv,"olDragDown");this.out(evt);this.callback("out",[]);if(dragged){this.callback("done",[evt.xy]);}
|
|
if(document.onselectstart){document.onselectstart=this.oldOnselectstart;}}}
|
|
return true;},click:function(evt){return(this.start==this.last);},activate:function(){var activated=false;if(OpenLayers.Handler.prototype.activate.apply(this,arguments)){this.dragging=false;activated=true;}
|
|
return activated;},deactivate:function(){var deactivated=false;if(OpenLayers.Handler.prototype.deactivate.apply(this,arguments)){this.touch=false;this.started=false;this.dragging=false;this.start=null;this.last=null;deactivated=true;OpenLayers.Element.removeClass(this.map.viewPortDiv,"olDragDown");}
|
|
return deactivated;},adjustXY:function(evt){var pos=OpenLayers.Util.pagePosition(this.map.viewPortDiv);evt.xy.x-=pos[0];evt.xy.y-=pos[1];},addDocumentEvents:function(){OpenLayers.Element.addClass(document.body,"olDragDown");this.documentEvents=true;OpenLayers.Event.observe(document,"mousemove",this._docMove);OpenLayers.Event.observe(document,"mouseup",this._docUp);},removeDocumentEvents:function(){OpenLayers.Element.removeClass(document.body,"olDragDown");this.documentEvents=false;OpenLayers.Event.stopObserving(document,"mousemove",this._docMove);OpenLayers.Event.stopObserving(document,"mouseup",this._docUp);},CLASS_NAME:"OpenLayers.Handler.Drag"});OpenLayers.Handler.Box=OpenLayers.Class(OpenLayers.Handler,{dragHandler:null,boxDivClassName:'olHandlerBoxZoomBox',boxOffsets:null,initialize:function(control,callbacks,options){OpenLayers.Handler.prototype.initialize.apply(this,arguments);this.dragHandler=new OpenLayers.Handler.Drag(this,{down:this.startBox,move:this.moveBox,out:this.removeBox,up:this.endBox},{keyMask:this.keyMask});},destroy:function(){OpenLayers.Handler.prototype.destroy.apply(this,arguments);if(this.dragHandler){this.dragHandler.destroy();this.dragHandler=null;}},setMap:function(map){OpenLayers.Handler.prototype.setMap.apply(this,arguments);if(this.dragHandler){this.dragHandler.setMap(map);}},startBox:function(xy){this.callback("start",[]);this.zoomBox=OpenLayers.Util.createDiv('zoomBox',{x:-9999,y:-9999});this.zoomBox.className=this.boxDivClassName;this.zoomBox.style.zIndex=this.map.Z_INDEX_BASE["Popup"]-1;this.map.viewPortDiv.appendChild(this.zoomBox);OpenLayers.Element.addClass(this.map.viewPortDiv,"olDrawBox");},moveBox:function(xy){var startX=this.dragHandler.start.x;var startY=this.dragHandler.start.y;var deltaX=Math.abs(startX-xy.x);var deltaY=Math.abs(startY-xy.y);var offset=this.getBoxOffsets();this.zoomBox.style.width=(deltaX+offset.width+1)+"px";this.zoomBox.style.height=(deltaY+offset.height+1)+"px";this.zoomBox.style.left=(xy.x<startX?startX-deltaX-offset.left:startX-offset.left)+"px";this.zoomBox.style.top=(xy.y<startY?startY-deltaY-offset.top:startY-offset.top)+"px";},endBox:function(end){var result;if(Math.abs(this.dragHandler.start.x-end.x)>5||Math.abs(this.dragHandler.start.y-end.y)>5){var start=this.dragHandler.start;var top=Math.min(start.y,end.y);var bottom=Math.max(start.y,end.y);var left=Math.min(start.x,end.x);var right=Math.max(start.x,end.x);result=new OpenLayers.Bounds(left,bottom,right,top);}else{result=this.dragHandler.start.clone();}
|
|
this.removeBox();this.callback("done",[result]);},removeBox:function(){this.map.viewPortDiv.removeChild(this.zoomBox);this.zoomBox=null;this.boxOffsets=null;OpenLayers.Element.removeClass(this.map.viewPortDiv,"olDrawBox");},activate:function(){if(OpenLayers.Handler.prototype.activate.apply(this,arguments)){this.dragHandler.activate();return true;}else{return false;}},deactivate:function(){if(OpenLayers.Handler.prototype.deactivate.apply(this,arguments)){if(this.dragHandler.deactivate()){if(this.zoomBox){this.removeBox();}}
|
|
return true;}else{return false;}},getBoxOffsets:function(){if(!this.boxOffsets){var testDiv=document.createElement("div");testDiv.style.position="absolute";testDiv.style.border="1px solid black";testDiv.style.width="3px";document.body.appendChild(testDiv);var w3cBoxModel=testDiv.clientWidth==3;document.body.removeChild(testDiv);var left=parseInt(OpenLayers.Element.getStyle(this.zoomBox,"border-left-width"));var right=parseInt(OpenLayers.Element.getStyle(this.zoomBox,"border-right-width"));var top=parseInt(OpenLayers.Element.getStyle(this.zoomBox,"border-top-width"));var bottom=parseInt(OpenLayers.Element.getStyle(this.zoomBox,"border-bottom-width"));this.boxOffsets={left:left,right:right,top:top,bottom:bottom,width:w3cBoxModel===false?left+right:0,height:w3cBoxModel===false?top+bottom:0};}
|
|
return this.boxOffsets;},CLASS_NAME:"OpenLayers.Handler.Box"});OpenLayers.Control.ZoomBox=OpenLayers.Class(OpenLayers.Control,{type:OpenLayers.Control.TYPE_TOOL,out:false,keyMask:null,alwaysZoom:false,zoomOnClick:true,draw:function(){this.handler=new OpenLayers.Handler.Box(this,{done:this.zoomBox},{keyMask:this.keyMask});},zoomBox:function(position){if(position instanceof OpenLayers.Bounds){var bounds,targetCenterPx=position.getCenterPixel();if(!this.out){var minXY=this.map.getLonLatFromPixel({x:position.left,y:position.bottom});var maxXY=this.map.getLonLatFromPixel({x:position.right,y:position.top});bounds=new OpenLayers.Bounds(minXY.lon,minXY.lat,maxXY.lon,maxXY.lat);}else{var pixWidth=position.right-position.left;var pixHeight=position.bottom-position.top;var zoomFactor=Math.min((this.map.size.h/pixHeight),(this.map.size.w/pixWidth));var extent=this.map.getExtent();var center=this.map.getLonLatFromPixel(targetCenterPx);var xmin=center.lon-(extent.getWidth()/2)*zoomFactor;var xmax=center.lon+(extent.getWidth()/2)*zoomFactor;var ymin=center.lat-(extent.getHeight()/2)*zoomFactor;var ymax=center.lat+(extent.getHeight()/2)*zoomFactor;bounds=new OpenLayers.Bounds(xmin,ymin,xmax,ymax);}
|
|
var lastZoom=this.map.getZoom(),size=this.map.getSize(),centerPx={x:size.w/2,y:size.h/2},zoom=this.map.getZoomForExtent(bounds),oldRes=this.map.getResolution(),newRes=this.map.getResolutionForZoom(zoom),zoomOriginPx={x:(oldRes*targetCenterPx.x-newRes*centerPx.x)/(oldRes-newRes),y:(oldRes*targetCenterPx.y-newRes*centerPx.y)/(oldRes-newRes)};this.map.zoomTo(zoom,zoomOriginPx);if(lastZoom==this.map.getZoom()&&this.alwaysZoom==true){this.map.zoomTo(lastZoom+(this.out?-1:1));}}else if(this.zoomOnClick){if(!this.out){this.map.zoomTo(this.map.getZoom()+1,position);}else{this.map.zoomTo(this.map.getZoom()-1,position);}}},CLASS_NAME:"OpenLayers.Control.ZoomBox"});OpenLayers.Control.DragPan=OpenLayers.Class(OpenLayers.Control,{type:OpenLayers.Control.TYPE_TOOL,panned:false,interval:1,documentDrag:false,kinetic:null,enableKinetic:true,kineticInterval:10,draw:function(){if(this.enableKinetic&&OpenLayers.Kinetic){var config={interval:this.kineticInterval};if(typeof this.enableKinetic==="object"){config=OpenLayers.Util.extend(config,this.enableKinetic);}
|
|
this.kinetic=new OpenLayers.Kinetic(config);}
|
|
this.handler=new OpenLayers.Handler.Drag(this,{"move":this.panMap,"done":this.panMapDone,"down":this.panMapStart},{interval:this.interval,documentDrag:this.documentDrag});},panMapStart:function(){if(this.kinetic){this.kinetic.begin();}},panMap:function(xy){if(this.kinetic){this.kinetic.update(xy);}
|
|
this.panned=true;this.map.pan(this.handler.last.x-xy.x,this.handler.last.y-xy.y,{dragging:true,animate:false});},panMapDone:function(xy){if(this.panned){var res=null;if(this.kinetic){res=this.kinetic.end(xy);}
|
|
this.map.pan(this.handler.last.x-xy.x,this.handler.last.y-xy.y,{dragging:!!res,animate:false});if(res){var self=this;this.kinetic.move(res,function(x,y,end){self.map.pan(x,y,{dragging:!end,animate:false});});}
|
|
this.panned=false;}},CLASS_NAME:"OpenLayers.Control.DragPan"});OpenLayers.Handler.MouseWheel=OpenLayers.Class(OpenLayers.Handler,{wheelListener:null,interval:0,maxDelta:Number.POSITIVE_INFINITY,delta:0,cumulative:true,initialize:function(control,callbacks,options){OpenLayers.Handler.prototype.initialize.apply(this,arguments);this.wheelListener=OpenLayers.Function.bindAsEventListener(this.onWheelEvent,this);},destroy:function(){OpenLayers.Handler.prototype.destroy.apply(this,arguments);this.wheelListener=null;},onWheelEvent:function(e){if(!this.map||!this.checkModifiers(e)){return;}
|
|
var overScrollableDiv=false;var allowScroll=false;var overMapDiv=false;var elem=OpenLayers.Event.element(e);while((elem!=null)&&!overMapDiv&&!overScrollableDiv){if(!overScrollableDiv){try{var overflow;if(elem.currentStyle){overflow=elem.currentStyle["overflow"];}else{var style=document.defaultView.getComputedStyle(elem,null);overflow=style.getPropertyValue("overflow");}
|
|
overScrollableDiv=(overflow&&(overflow=="auto")||(overflow=="scroll"));}catch(err){}}
|
|
if(!allowScroll){allowScroll=OpenLayers.Element.hasClass(elem,'olScrollable');if(!allowScroll){for(var i=0,len=this.map.layers.length;i<len;i++){var layer=this.map.layers[i];if(elem==layer.div||elem==layer.pane){allowScroll=true;break;}}}}
|
|
overMapDiv=(elem==this.map.div);elem=elem.parentNode;}
|
|
if(!overScrollableDiv&&overMapDiv){if(allowScroll){var delta=0;if(e.wheelDelta){delta=e.wheelDelta;if(delta%160===0){delta=delta*0.75;}
|
|
delta=delta/120;}else if(e.detail){delta=-(e.detail/Math.abs(e.detail));}
|
|
this.delta+=delta;window.clearTimeout(this._timeoutId);if(this.interval&&Math.abs(this.delta)<this.maxDelta){var evt=OpenLayers.Util.extend({},e);this._timeoutId=window.setTimeout(OpenLayers.Function.bind(function(){this.wheelZoom(evt);},this),this.interval);}else{this.wheelZoom(e);}}
|
|
OpenLayers.Event.stop(e);}},wheelZoom:function(e){var delta=this.delta;this.delta=0;if(delta){e.xy=this.map.events.getMousePosition(e);if(delta<0){this.callback("down",[e,this.cumulative?Math.max(-this.maxDelta,delta):-1]);}else{this.callback("up",[e,this.cumulative?Math.min(this.maxDelta,delta):1]);}}},activate:function(evt){if(OpenLayers.Handler.prototype.activate.apply(this,arguments)){var wheelListener=this.wheelListener;OpenLayers.Event.observe(window,"DOMMouseScroll",wheelListener);OpenLayers.Event.observe(window,"mousewheel",wheelListener);OpenLayers.Event.observe(document,"mousewheel",wheelListener);return true;}else{return false;}},deactivate:function(evt){if(OpenLayers.Handler.prototype.deactivate.apply(this,arguments)){var wheelListener=this.wheelListener;OpenLayers.Event.stopObserving(window,"DOMMouseScroll",wheelListener);OpenLayers.Event.stopObserving(window,"mousewheel",wheelListener);OpenLayers.Event.stopObserving(document,"mousewheel",wheelListener);return true;}else{return false;}},CLASS_NAME:"OpenLayers.Handler.MouseWheel"});OpenLayers.Control.Navigation=OpenLayers.Class(OpenLayers.Control,{dragPan:null,dragPanOptions:null,pinchZoom:null,pinchZoomOptions:null,documentDrag:false,zoomBox:null,zoomBoxEnabled:true,zoomWheelEnabled:true,mouseWheelOptions:null,handleRightClicks:false,zoomBoxKeyMask:OpenLayers.Handler.MOD_SHIFT,autoActivate:true,initialize:function(options){this.handlers={};OpenLayers.Control.prototype.initialize.apply(this,arguments);},destroy:function(){this.deactivate();if(this.dragPan){this.dragPan.destroy();}
|
|
this.dragPan=null;if(this.zoomBox){this.zoomBox.destroy();}
|
|
this.zoomBox=null;if(this.pinchZoom){this.pinchZoom.destroy();}
|
|
this.pinchZoom=null;OpenLayers.Control.prototype.destroy.apply(this,arguments);},activate:function(){this.dragPan.activate();if(this.zoomWheelEnabled){this.handlers.wheel.activate();}
|
|
this.handlers.click.activate();if(this.zoomBoxEnabled){this.zoomBox.activate();}
|
|
if(this.pinchZoom){this.pinchZoom.activate();}
|
|
return OpenLayers.Control.prototype.activate.apply(this,arguments);},deactivate:function(){if(this.pinchZoom){this.pinchZoom.deactivate();}
|
|
this.zoomBox.deactivate();this.dragPan.deactivate();this.handlers.click.deactivate();this.handlers.wheel.deactivate();return OpenLayers.Control.prototype.deactivate.apply(this,arguments);},draw:function(){if(this.handleRightClicks){this.map.viewPortDiv.oncontextmenu=OpenLayers.Function.False;}
|
|
var clickCallbacks={'click':this.defaultClick,'dblclick':this.defaultDblClick,'dblrightclick':this.defaultDblRightClick};var clickOptions={'double':true,'stopDouble':true};this.handlers.click=new OpenLayers.Handler.Click(this,clickCallbacks,clickOptions);this.dragPan=new OpenLayers.Control.DragPan(OpenLayers.Util.extend({map:this.map,documentDrag:this.documentDrag},this.dragPanOptions));this.zoomBox=new OpenLayers.Control.ZoomBox({map:this.map,keyMask:this.zoomBoxKeyMask});this.dragPan.draw();this.zoomBox.draw();var wheelOptions=this.map.fractionalZoom?{}:{cumulative:false,interval:50,maxDelta:6};this.handlers.wheel=new OpenLayers.Handler.MouseWheel(this,{up:this.wheelUp,down:this.wheelDown},OpenLayers.Util.extend(wheelOptions,this.mouseWheelOptions));if(OpenLayers.Control.PinchZoom){this.pinchZoom=new OpenLayers.Control.PinchZoom(OpenLayers.Util.extend({map:this.map},this.pinchZoomOptions));}},defaultClick:function(evt){if(evt.lastTouches&&evt.lastTouches.length==2){this.map.zoomOut();}},defaultDblClick:function(evt){this.map.zoomTo(this.map.zoom+1,evt.xy);},defaultDblRightClick:function(evt){this.map.zoomTo(this.map.zoom-1,evt.xy);},wheelChange:function(evt,deltaZ){if(!this.map.fractionalZoom){deltaZ=Math.round(deltaZ);}
|
|
var currentZoom=this.map.getZoom(),newZoom=currentZoom+deltaZ;newZoom=Math.max(newZoom,0);newZoom=Math.min(newZoom,this.map.getNumZoomLevels());if(newZoom===currentZoom){return;}
|
|
this.map.zoomTo(newZoom,evt.xy);},wheelUp:function(evt,delta){this.wheelChange(evt,delta||1);},wheelDown:function(evt,delta){this.wheelChange(evt,delta||-1);},disableZoomBox:function(){this.zoomBoxEnabled=false;this.zoomBox.deactivate();},enableZoomBox:function(){this.zoomBoxEnabled=true;if(this.active){this.zoomBox.activate();}},disableZoomWheel:function(){this.zoomWheelEnabled=false;this.handlers.wheel.deactivate();},enableZoomWheel:function(){this.zoomWheelEnabled=true;if(this.active){this.handlers.wheel.activate();}},CLASS_NAME:"OpenLayers.Control.Navigation"});OpenLayers.Handler.Pinch=OpenLayers.Class(OpenLayers.Handler,{started:false,stopDown:false,pinching:false,last:null,start:null,touchstart:function(evt){var propagate=true;this.pinching=false;if(OpenLayers.Event.isMultiTouch(evt)){this.started=true;this.last=this.start={distance:this.getDistance(evt.touches),delta:0,scale:1};this.callback("start",[evt,this.start]);propagate=!this.stopDown;}else if(this.started){return false;}else{this.started=false;this.start=null;this.last=null;}
|
|
OpenLayers.Event.preventDefault(evt);return propagate;},touchmove:function(evt){if(this.started&&OpenLayers.Event.isMultiTouch(evt)){this.pinching=true;var current=this.getPinchData(evt);this.callback("move",[evt,current]);this.last=current;OpenLayers.Event.stop(evt);}else if(this.started){return false;}
|
|
return true;},touchend:function(evt){if(this.started&&!OpenLayers.Event.isMultiTouch(evt)){this.started=false;this.pinching=false;this.callback("done",[evt,this.start,this.last]);this.start=null;this.last=null;return false;}
|
|
return true;},activate:function(){var activated=false;if(OpenLayers.Handler.prototype.activate.apply(this,arguments)){this.pinching=false;activated=true;}
|
|
return activated;},deactivate:function(){var deactivated=false;if(OpenLayers.Handler.prototype.deactivate.apply(this,arguments)){this.started=false;this.pinching=false;this.start=null;this.last=null;deactivated=true;}
|
|
return deactivated;},getDistance:function(touches){var t0=touches[0];var t1=touches[1];return Math.sqrt(Math.pow(t0.olClientX-t1.olClientX,2)+
|
|
Math.pow(t0.olClientY-t1.olClientY,2));},getPinchData:function(evt){var distance=this.getDistance(evt.touches);var scale=distance/this.start.distance;return{distance:distance,delta:this.last.distance-distance,scale:scale};},CLASS_NAME:"OpenLayers.Handler.Pinch"});OpenLayers.Layer=OpenLayers.Class({id:null,name:null,div:null,opacity:1,alwaysInRange:null,RESOLUTION_PROPERTIES:['scales','resolutions','maxScale','minScale','maxResolution','minResolution','numZoomLevels','maxZoomLevel'],events:null,map:null,isBaseLayer:false,alpha:false,displayInLayerSwitcher:true,visibility:true,attribution:null,inRange:false,imageSize:null,options:null,eventListeners:null,gutter:0,projection:null,units:null,scales:null,resolutions:null,maxExtent:null,minExtent:null,maxResolution:null,minResolution:null,numZoomLevels:null,minScale:null,maxScale:null,displayOutsideMaxExtent:false,wrapDateLine:false,metadata:null,initialize:function(name,options){this.metadata={};options=OpenLayers.Util.extend({},options);if(this.alwaysInRange!=null){options.alwaysInRange=this.alwaysInRange;}
|
|
this.addOptions(options);this.name=name;if(this.id==null){this.id=OpenLayers.Util.createUniqueID(this.CLASS_NAME+"_");this.div=OpenLayers.Util.createDiv(this.id);this.div.style.width="100%";this.div.style.height="100%";this.div.dir="ltr";this.events=new OpenLayers.Events(this,this.div);if(this.eventListeners instanceof Object){this.events.on(this.eventListeners);}}},destroy:function(setNewBaseLayer){if(setNewBaseLayer==null){setNewBaseLayer=true;}
|
|
if(this.map!=null){this.map.removeLayer(this,setNewBaseLayer);}
|
|
this.projection=null;this.map=null;this.name=null;this.div=null;this.options=null;if(this.events){if(this.eventListeners){this.events.un(this.eventListeners);}
|
|
this.events.destroy();}
|
|
this.eventListeners=null;this.events=null;},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer(this.name,this.getOptions());}
|
|
OpenLayers.Util.applyDefaults(obj,this);obj.map=null;return obj;},getOptions:function(){var options={};for(var o in this.options){options[o]=this[o];}
|
|
return options;},setName:function(newName){if(newName!=this.name){this.name=newName;if(this.map!=null){this.map.events.triggerEvent("changelayer",{layer:this,property:"name"});}}},addOptions:function(newOptions,reinitialize){if(this.options==null){this.options={};}
|
|
if(newOptions){if(typeof newOptions.projection=="string"){newOptions.projection=new OpenLayers.Projection(newOptions.projection);}
|
|
if(newOptions.projection){OpenLayers.Util.applyDefaults(newOptions,OpenLayers.Projection.defaults[newOptions.projection.getCode()]);}
|
|
if(newOptions.maxExtent&&!(newOptions.maxExtent instanceof OpenLayers.Bounds)){newOptions.maxExtent=new OpenLayers.Bounds(newOptions.maxExtent);}
|
|
if(newOptions.minExtent&&!(newOptions.minExtent instanceof OpenLayers.Bounds)){newOptions.minExtent=new OpenLayers.Bounds(newOptions.minExtent);}}
|
|
OpenLayers.Util.extend(this.options,newOptions);OpenLayers.Util.extend(this,newOptions);if(this.projection&&this.projection.getUnits()){this.units=this.projection.getUnits();}
|
|
if(this.map){var resolution=this.map.getResolution();var properties=this.RESOLUTION_PROPERTIES.concat(["projection","units","minExtent","maxExtent"]);for(var o in newOptions){if(newOptions.hasOwnProperty(o)&&OpenLayers.Util.indexOf(properties,o)>=0){this.initResolutions();if(reinitialize&&this.map.baseLayer===this){this.map.setCenter(this.map.getCenter(),this.map.getZoomForResolution(resolution),false,true);this.map.events.triggerEvent("changebaselayer",{layer:this});}
|
|
break;}}}},onMapResize:function(){},redraw:function(){var redrawn=false;if(this.map){this.inRange=this.calculateInRange();var extent=this.getExtent();if(extent&&this.inRange&&this.visibility){var zoomChanged=true;this.moveTo(extent,zoomChanged,false);this.events.triggerEvent("moveend",{"zoomChanged":zoomChanged});redrawn=true;}}
|
|
return redrawn;},moveTo:function(bounds,zoomChanged,dragging){var display=this.visibility;if(!this.isBaseLayer){display=display&&this.inRange;}
|
|
this.display(display);},moveByPx:function(dx,dy){},setMap:function(map){if(this.map==null){this.map=map;this.maxExtent=this.maxExtent||this.map.maxExtent;this.minExtent=this.minExtent||this.map.minExtent;this.projection=this.projection||this.map.projection;if(typeof this.projection=="string"){this.projection=new OpenLayers.Projection(this.projection);}
|
|
this.units=this.projection.getUnits()||this.units||this.map.units;this.initResolutions();if(!this.isBaseLayer){this.inRange=this.calculateInRange();var show=((this.visibility)&&(this.inRange));this.div.style.display=show?"":"none";}
|
|
this.setTileSize();}},afterAdd:function(){},removeMap:function(map){},getImageSize:function(bounds){return(this.imageSize||this.tileSize);},setTileSize:function(size){var tileSize=(size)?size:((this.tileSize)?this.tileSize:this.map.getTileSize());this.tileSize=tileSize;if(this.gutter){this.imageSize=new OpenLayers.Size(tileSize.w+(2*this.gutter),tileSize.h+(2*this.gutter));}},getVisibility:function(){return this.visibility;},setVisibility:function(visibility){if(visibility!=this.visibility){this.visibility=visibility;this.display(visibility);this.redraw();this.events.triggerEvent("visibilitychanged");}},display:function(display){if(display!=(this.div.style.display!="none")){this.div.style.display=(display&&this.calculateInRange())?"block":"none";if(this.map){this.map.events.triggerEvent("changelayer",{layer:this,property:"visibility"});}}},calculateInRange:function(){var inRange=false;if(this.alwaysInRange){inRange=true;}else{if(this.map){var resolution=this.map.getResolution();inRange=((resolution>=this.minResolution)&&(resolution<=this.maxResolution));}}
|
|
return inRange;},setIsBaseLayer:function(isBaseLayer){if(isBaseLayer!=this.isBaseLayer){this.isBaseLayer=isBaseLayer;if(this.map!=null){this.map.events.triggerEvent("changebaselayer",{layer:this});}}},initResolutions:function(){var i,len,p;var props={},alwaysInRange=true;for(i=0,len=this.RESOLUTION_PROPERTIES.length;i<len;i++){p=this.RESOLUTION_PROPERTIES[i];props[p]=this.options[p];if(alwaysInRange&&this.options[p]){alwaysInRange=false;}}
|
|
if(this.options.alwaysInRange==null){this.alwaysInRange=alwaysInRange;}
|
|
if(props.resolutions==null){props.resolutions=this.resolutionsFromScales(props.scales);}
|
|
if(props.resolutions==null){props.resolutions=this.calculateResolutions(props);}
|
|
if(props.resolutions==null){for(i=0,len=this.RESOLUTION_PROPERTIES.length;i<len;i++){p=this.RESOLUTION_PROPERTIES[i];props[p]=this.options[p]!=null?this.options[p]:this.map[p];}
|
|
if(props.resolutions==null){props.resolutions=this.resolutionsFromScales(props.scales);}
|
|
if(props.resolutions==null){props.resolutions=this.calculateResolutions(props);}}
|
|
var maxResolution;if(this.options.maxResolution&&this.options.maxResolution!=="auto"){maxResolution=this.options.maxResolution;}
|
|
if(this.options.minScale){maxResolution=OpenLayers.Util.getResolutionFromScale(this.options.minScale,this.units);}
|
|
var minResolution;if(this.options.minResolution&&this.options.minResolution!=="auto"){minResolution=this.options.minResolution;}
|
|
if(this.options.maxScale){minResolution=OpenLayers.Util.getResolutionFromScale(this.options.maxScale,this.units);}
|
|
if(props.resolutions){props.resolutions.sort(function(a,b){return(b-a);});if(!maxResolution){maxResolution=props.resolutions[0];}
|
|
if(!minResolution){var lastIdx=props.resolutions.length-1;minResolution=props.resolutions[lastIdx];}}
|
|
this.resolutions=props.resolutions;if(this.resolutions){len=this.resolutions.length;this.scales=new Array(len);for(i=0;i<len;i++){this.scales[i]=OpenLayers.Util.getScaleFromResolution(this.resolutions[i],this.units);}
|
|
this.numZoomLevels=len;}
|
|
this.minResolution=minResolution;if(minResolution){this.maxScale=OpenLayers.Util.getScaleFromResolution(minResolution,this.units);}
|
|
this.maxResolution=maxResolution;if(maxResolution){this.minScale=OpenLayers.Util.getScaleFromResolution(maxResolution,this.units);}},resolutionsFromScales:function(scales){if(scales==null){return;}
|
|
var resolutions,i,len;len=scales.length;resolutions=new Array(len);for(i=0;i<len;i++){resolutions[i]=OpenLayers.Util.getResolutionFromScale(scales[i],this.units);}
|
|
return resolutions;},calculateResolutions:function(props){var viewSize,wRes,hRes;var maxResolution=props.maxResolution;if(props.minScale!=null){maxResolution=OpenLayers.Util.getResolutionFromScale(props.minScale,this.units);}else if(maxResolution=="auto"&&this.maxExtent!=null){viewSize=this.map.getSize();wRes=this.maxExtent.getWidth()/viewSize.w;hRes=this.maxExtent.getHeight()/viewSize.h;maxResolution=Math.max(wRes,hRes);}
|
|
var minResolution=props.minResolution;if(props.maxScale!=null){minResolution=OpenLayers.Util.getResolutionFromScale(props.maxScale,this.units);}else if(props.minResolution=="auto"&&this.minExtent!=null){viewSize=this.map.getSize();wRes=this.minExtent.getWidth()/viewSize.w;hRes=this.minExtent.getHeight()/viewSize.h;minResolution=Math.max(wRes,hRes);}
|
|
if(typeof maxResolution!=="number"&&typeof minResolution!=="number"&&this.maxExtent!=null){var tileSize=this.map.getTileSize();maxResolution=Math.max(this.maxExtent.getWidth()/tileSize.w,this.maxExtent.getHeight()/tileSize.h);}
|
|
var maxZoomLevel=props.maxZoomLevel;var numZoomLevels=props.numZoomLevels;if(typeof minResolution==="number"&&typeof maxResolution==="number"&&numZoomLevels===undefined){var ratio=maxResolution/minResolution;numZoomLevels=Math.floor(Math.log(ratio)/Math.log(2))+1;}else if(numZoomLevels===undefined&&maxZoomLevel!=null){numZoomLevels=maxZoomLevel+1;}
|
|
if(typeof numZoomLevels!=="number"||numZoomLevels<=0||(typeof maxResolution!=="number"&&typeof minResolution!=="number")){return;}
|
|
var resolutions=new Array(numZoomLevels);var base=2;if(typeof minResolution=="number"&&typeof maxResolution=="number"){base=Math.pow((maxResolution/minResolution),(1/(numZoomLevels-1)));}
|
|
var i;if(typeof maxResolution==="number"){for(i=0;i<numZoomLevels;i++){resolutions[i]=maxResolution/Math.pow(base,i);}}else{for(i=0;i<numZoomLevels;i++){resolutions[numZoomLevels-1-i]=minResolution*Math.pow(base,i);}}
|
|
return resolutions;},getResolution:function(){var zoom=this.map.getZoom();return this.getResolutionForZoom(zoom);},getExtent:function(){return this.map.calculateBounds();},getZoomForExtent:function(extent,closest){var viewSize=this.map.getSize();var idealResolution=Math.max(extent.getWidth()/viewSize.w,extent.getHeight()/viewSize.h);return this.getZoomForResolution(idealResolution,closest);},getDataExtent:function(){},getResolutionForZoom:function(zoom){zoom=Math.max(0,Math.min(zoom,this.resolutions.length-1));var resolution;if(this.map.fractionalZoom){var low=Math.floor(zoom);var high=Math.ceil(zoom);resolution=this.resolutions[low]-
|
|
((zoom-low)*(this.resolutions[low]-this.resolutions[high]));}else{resolution=this.resolutions[Math.round(zoom)];}
|
|
return resolution;},getZoomForResolution:function(resolution,closest){var zoom,i,len;if(this.map.fractionalZoom){var lowZoom=0;var highZoom=this.resolutions.length-1;var highRes=this.resolutions[lowZoom];var lowRes=this.resolutions[highZoom];var res;for(i=0,len=this.resolutions.length;i<len;++i){res=this.resolutions[i];if(res>=resolution){highRes=res;lowZoom=i;}
|
|
if(res<=resolution){lowRes=res;highZoom=i;break;}}
|
|
var dRes=highRes-lowRes;if(dRes>0){zoom=lowZoom+((highRes-resolution)/dRes);}else{zoom=lowZoom;}}else{var diff;var minDiff=Number.POSITIVE_INFINITY;for(i=0,len=this.resolutions.length;i<len;i++){if(closest){diff=Math.abs(this.resolutions[i]-resolution);if(diff>minDiff){break;}
|
|
minDiff=diff;}else{if(this.resolutions[i]<resolution){break;}}}
|
|
zoom=Math.max(0,i-1);}
|
|
return zoom;},getLonLatFromViewPortPx:function(viewPortPx){var lonlat=null;var map=this.map;if(viewPortPx!=null&&map.minPx){var res=map.getResolution();var maxExtent=map.getMaxExtent({restricted:true});var lon=(viewPortPx.x-map.minPx.x)*res+maxExtent.left;var lat=(map.minPx.y-viewPortPx.y)*res+maxExtent.top;lonlat=new OpenLayers.LonLat(lon,lat);if(this.wrapDateLine){lonlat=lonlat.wrapDateLine(this.maxExtent);}}
|
|
return lonlat;},getViewPortPxFromLonLat:function(lonlat,resolution){var px=null;if(lonlat!=null){resolution=resolution||this.map.getResolution();var extent=this.map.calculateBounds(null,resolution);px=new OpenLayers.Pixel((1/resolution*(lonlat.lon-extent.left)),(1/resolution*(extent.top-lonlat.lat)));}
|
|
return px;},setOpacity:function(opacity){if(opacity!=this.opacity){this.opacity=opacity;var childNodes=this.div.childNodes;for(var i=0,len=childNodes.length;i<len;++i){var element=childNodes[i].firstChild||childNodes[i];var lastChild=childNodes[i].lastChild;if(lastChild&&lastChild.nodeName.toLowerCase()==="iframe"){element=lastChild.parentNode;}
|
|
OpenLayers.Util.modifyDOMElement(element,null,null,null,null,null,null,opacity);}
|
|
if(this.map!=null){this.map.events.triggerEvent("changelayer",{layer:this,property:"opacity"});}}},getZIndex:function(){return this.div.style.zIndex;},setZIndex:function(zIndex){this.div.style.zIndex=zIndex;},adjustBounds:function(bounds){if(this.gutter){var mapGutter=this.gutter*this.map.getResolution();bounds=new OpenLayers.Bounds(bounds.left-mapGutter,bounds.bottom-mapGutter,bounds.right+mapGutter,bounds.top+mapGutter);}
|
|
if(this.wrapDateLine){var wrappingOptions={'rightTolerance':this.getResolution(),'leftTolerance':this.getResolution()};bounds=bounds.wrapDateLine(this.maxExtent,wrappingOptions);}
|
|
return bounds;},CLASS_NAME:"OpenLayers.Layer"});OpenLayers.Layer.HTTPRequest=OpenLayers.Class(OpenLayers.Layer,{URL_HASH_FACTOR:(Math.sqrt(5)-1)/2,url:null,params:null,reproject:false,initialize:function(name,url,params,options){OpenLayers.Layer.prototype.initialize.apply(this,[name,options]);this.url=url;if(!this.params){this.params=OpenLayers.Util.extend({},params);}},destroy:function(){this.url=null;this.params=null;OpenLayers.Layer.prototype.destroy.apply(this,arguments);},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer.HTTPRequest(this.name,this.url,this.params,this.getOptions());}
|
|
obj=OpenLayers.Layer.prototype.clone.apply(this,[obj]);return obj;},setUrl:function(newUrl){this.url=newUrl;},mergeNewParams:function(newParams){this.params=OpenLayers.Util.extend(this.params,newParams);var ret=this.redraw();if(this.map!=null){this.map.events.triggerEvent("changelayer",{layer:this,property:"params"});}
|
|
return ret;},redraw:function(force){if(force){return this.mergeNewParams({"_olSalt":Math.random()});}else{return OpenLayers.Layer.prototype.redraw.apply(this,[]);}},selectUrl:function(paramString,urls){var product=1;for(var i=0,len=paramString.length;i<len;i++){product*=paramString.charCodeAt(i)*this.URL_HASH_FACTOR;product-=Math.floor(product);}
|
|
return urls[Math.floor(product*urls.length)];},getFullRequestString:function(newParams,altUrl){var url=altUrl||this.url;var allParams=OpenLayers.Util.extend({},this.params);allParams=OpenLayers.Util.extend(allParams,newParams);var paramsString=OpenLayers.Util.getParameterString(allParams);if(OpenLayers.Util.isArray(url)){url=this.selectUrl(paramsString,url);}
|
|
var urlParams=OpenLayers.Util.upperCaseObject(OpenLayers.Util.getParameters(url));for(var key in allParams){if(key.toUpperCase()in urlParams){delete allParams[key];}}
|
|
paramsString=OpenLayers.Util.getParameterString(allParams);return OpenLayers.Util.urlAppend(url,paramsString);},CLASS_NAME:"OpenLayers.Layer.HTTPRequest"});OpenLayers.Tile=OpenLayers.Class({events:null,eventListeners:null,id:null,layer:null,url:null,bounds:null,size:null,position:null,isLoading:false,initialize:function(layer,position,bounds,url,size,options){this.layer=layer;this.position=position.clone();this.setBounds(bounds);this.url=url;if(size){this.size=size.clone();}
|
|
this.id=OpenLayers.Util.createUniqueID("Tile_");OpenLayers.Util.extend(this,options);this.events=new OpenLayers.Events(this);if(this.eventListeners instanceof Object){this.events.on(this.eventListeners);}},unload:function(){if(this.isLoading){this.isLoading=false;this.events.triggerEvent("unload");}},destroy:function(){this.layer=null;this.bounds=null;this.size=null;this.position=null;if(this.eventListeners){this.events.un(this.eventListeners);}
|
|
this.events.destroy();this.eventListeners=null;this.events=null;},draw:function(force){if(!force){this.clear();}
|
|
var draw=this.shouldDraw();if(draw&&!force&&this.events.triggerEvent("beforedraw")===false){draw=null;}
|
|
return draw;},shouldDraw:function(){var withinMaxExtent=false,maxExtent=this.layer.maxExtent;if(maxExtent){var map=this.layer.map;var worldBounds=map.baseLayer.wrapDateLine&&map.getMaxExtent();if(this.bounds.intersectsBounds(maxExtent,{inclusive:false,worldBounds:worldBounds})){withinMaxExtent=true;}}
|
|
return withinMaxExtent||this.layer.displayOutsideMaxExtent;},setBounds:function(bounds){bounds=bounds.clone();if(this.layer.map.baseLayer.wrapDateLine){var worldExtent=this.layer.map.getMaxExtent(),tolerance=this.layer.map.getResolution();bounds=bounds.wrapDateLine(worldExtent,{leftTolerance:tolerance,rightTolerance:tolerance});}
|
|
this.bounds=bounds;},moveTo:function(bounds,position,redraw){if(redraw==null){redraw=true;}
|
|
this.setBounds(bounds);this.position=position.clone();if(redraw){this.draw();}},clear:function(draw){},CLASS_NAME:"OpenLayers.Tile"});OpenLayers.Tile.Image=OpenLayers.Class(OpenLayers.Tile,{url:null,imgDiv:null,frame:null,imageReloadAttempts:null,layerAlphaHack:null,asyncRequestId:null,maxGetUrlLength:null,canvasContext:null,crossOriginKeyword:null,initialize:function(layer,position,bounds,url,size,options){OpenLayers.Tile.prototype.initialize.apply(this,arguments);this.url=url;this.layerAlphaHack=this.layer.alpha&&OpenLayers.Util.alphaHack();if(this.maxGetUrlLength!=null||this.layer.gutter||this.layerAlphaHack){this.frame=document.createElement("div");this.frame.style.position="absolute";this.frame.style.overflow="hidden";}
|
|
if(this.maxGetUrlLength!=null){OpenLayers.Util.extend(this,OpenLayers.Tile.Image.IFrame);}},destroy:function(){if(this.imgDiv){this.clear();this.imgDiv=null;this.frame=null;}
|
|
this.asyncRequestId=null;OpenLayers.Tile.prototype.destroy.apply(this,arguments);},draw:function(){var shouldDraw=OpenLayers.Tile.prototype.draw.apply(this,arguments);if(shouldDraw){if(this.layer!=this.layer.map.baseLayer&&this.layer.reproject){this.bounds=this.getBoundsFromBaseLayer(this.position);}
|
|
if(this.isLoading){this._loadEvent="reload";}else{this.isLoading=true;this._loadEvent="loadstart";}
|
|
this.renderTile();this.positionTile();}else if(shouldDraw===false){this.unload();}
|
|
return shouldDraw;},renderTile:function(){if(this.layer.async){var id=this.asyncRequestId=(this.asyncRequestId||0)+1;this.layer.getURLasync(this.bounds,function(url){if(id==this.asyncRequestId){this.url=url;this.initImage();}},this);}else{this.url=this.layer.getURL(this.bounds);this.initImage();}},positionTile:function(){var style=this.getTile().style,size=this.frame?this.size:this.layer.getImageSize(this.bounds),ratio=1;if(this.layer instanceof OpenLayers.Layer.Grid){ratio=this.layer.getServerResolution()/this.layer.map.getResolution();}
|
|
style.left=this.position.x+"px";style.top=this.position.y+"px";style.width=Math.round(ratio*size.w)+"px";style.height=Math.round(ratio*size.h)+"px";},clear:function(){OpenLayers.Tile.prototype.clear.apply(this,arguments);var img=this.imgDiv;if(img){var tile=this.getTile();if(tile.parentNode===this.layer.div){this.layer.div.removeChild(tile);}
|
|
this.setImgSrc();if(this.layerAlphaHack===true){img.style.filter="";}
|
|
OpenLayers.Element.removeClass(img,"olImageLoadError");}
|
|
this.canvasContext=null;},getImage:function(){if(!this.imgDiv){this.imgDiv=OpenLayers.Tile.Image.IMAGE.cloneNode(false);var style=this.imgDiv.style;if(this.frame){var left=0,top=0;if(this.layer.gutter){left=this.layer.gutter/this.layer.tileSize.w*100;top=this.layer.gutter/this.layer.tileSize.h*100;}
|
|
style.left=-left+"%";style.top=-top+"%";style.width=(2*left+100)+"%";style.height=(2*top+100)+"%";}
|
|
style.visibility="hidden";style.opacity=0;if(this.layer.opacity<1){style.filter='alpha(opacity='+
|
|
(this.layer.opacity*100)+')';}
|
|
style.position="absolute";if(this.layerAlphaHack){style.paddingTop=style.height;style.height="0";style.width="100%";}
|
|
if(this.frame){this.frame.appendChild(this.imgDiv);}}
|
|
return this.imgDiv;},setImage:function(img){this.imgDiv=img;},initImage:function(){this.events.triggerEvent('beforeload');this.layer.div.appendChild(this.getTile());this.events.triggerEvent(this._loadEvent);var img=this.getImage();if(this.url&&img.getAttribute("src")==this.url){this._loadTimeout=window.setTimeout(OpenLayers.Function.bind(this.onImageLoad,this),0);}else{this.stopLoading();if(this.crossOriginKeyword){img.removeAttribute("crossorigin");}
|
|
OpenLayers.Event.observe(img,"load",OpenLayers.Function.bind(this.onImageLoad,this));OpenLayers.Event.observe(img,"error",OpenLayers.Function.bind(this.onImageError,this));this.imageReloadAttempts=0;this.setImgSrc(this.url);}},setImgSrc:function(url){var img=this.imgDiv;if(url){img.style.visibility='hidden';img.style.opacity=0;if(this.crossOriginKeyword){if(url.substr(0,5)!=='data:'){img.setAttribute("crossorigin",this.crossOriginKeyword);}else{img.removeAttribute("crossorigin");}}
|
|
img.src=url;}else{this.stopLoading();this.imgDiv=null;if(img.parentNode){img.parentNode.removeChild(img);}}},getTile:function(){return this.frame?this.frame:this.getImage();},createBackBuffer:function(){if(!this.imgDiv||this.isLoading){return;}
|
|
var backBuffer;if(this.frame){backBuffer=this.frame.cloneNode(false);backBuffer.appendChild(this.imgDiv);}else{backBuffer=this.imgDiv;}
|
|
this.imgDiv=null;return backBuffer;},onImageLoad:function(){var img=this.imgDiv;this.stopLoading();img.style.visibility='inherit';img.style.opacity=this.layer.opacity;this.isLoading=false;this.canvasContext=null;this.events.triggerEvent("loadend");if(this.layerAlphaHack===true){img.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+
|
|
img.src+"', sizingMethod='scale')";}},onImageError:function(){var img=this.imgDiv;if(img.src!=null){this.imageReloadAttempts++;if(this.imageReloadAttempts<=OpenLayers.IMAGE_RELOAD_ATTEMPTS){this.setImgSrc(this.layer.getURL(this.bounds));}else{OpenLayers.Element.addClass(img,"olImageLoadError");this.events.triggerEvent("loaderror");this.onImageLoad();}}},stopLoading:function(){OpenLayers.Event.stopObservingElement(this.imgDiv);window.clearTimeout(this._loadTimeout);delete this._loadTimeout;},getCanvasContext:function(){if(OpenLayers.CANVAS_SUPPORTED&&this.imgDiv&&!this.isLoading){if(!this.canvasContext){var canvas=document.createElement("canvas");canvas.width=this.size.w;canvas.height=this.size.h;this.canvasContext=canvas.getContext("2d");this.canvasContext.drawImage(this.imgDiv,0,0);}
|
|
return this.canvasContext;}},CLASS_NAME:"OpenLayers.Tile.Image"});OpenLayers.Tile.Image.IMAGE=(function(){var img=new Image();img.className="olTileImage";img.galleryImg="no";return img;}());OpenLayers.Layer.Grid=OpenLayers.Class(OpenLayers.Layer.HTTPRequest,{tileSize:null,tileOriginCorner:"bl",tileOrigin:null,tileOptions:null,tileClass:OpenLayers.Tile.Image,grid:null,singleTile:false,ratio:1.5,buffer:0,transitionEffect:"resize",numLoadingTiles:0,serverResolutions:null,loading:false,backBuffer:null,gridResolution:null,backBufferResolution:null,backBufferLonLat:null,backBufferTimerId:null,removeBackBufferDelay:null,className:null,gridLayout:null,rowSign:null,transitionendEvents:['transitionend','webkitTransitionEnd','otransitionend','oTransitionEnd'],initialize:function(name,url,params,options){OpenLayers.Layer.HTTPRequest.prototype.initialize.apply(this,arguments);this.grid=[];this._removeBackBuffer=OpenLayers.Function.bind(this.removeBackBuffer,this);this.initProperties();this.rowSign=this.tileOriginCorner.substr(0,1)==="t"?1:-1;},initProperties:function(){if(this.options.removeBackBufferDelay===undefined){this.removeBackBufferDelay=this.singleTile?0:2500;}
|
|
if(this.options.className===undefined){this.className=this.singleTile?'olLayerGridSingleTile':'olLayerGrid';}},setMap:function(map){OpenLayers.Layer.HTTPRequest.prototype.setMap.call(this,map);OpenLayers.Element.addClass(this.div,this.className);},removeMap:function(map){this.removeBackBuffer();},destroy:function(){this.removeBackBuffer();this.clearGrid();this.grid=null;this.tileSize=null;OpenLayers.Layer.HTTPRequest.prototype.destroy.apply(this,arguments);},clearGrid:function(){if(this.grid){for(var iRow=0,len=this.grid.length;iRow<len;iRow++){var row=this.grid[iRow];for(var iCol=0,clen=row.length;iCol<clen;iCol++){var tile=row[iCol];this.destroyTile(tile);}}
|
|
this.grid=[];this.gridResolution=null;this.gridLayout=null;}},addOptions:function(newOptions,reinitialize){var singleTileChanged=newOptions.singleTile!==undefined&&newOptions.singleTile!==this.singleTile;OpenLayers.Layer.HTTPRequest.prototype.addOptions.apply(this,arguments);if(this.map&&singleTileChanged){this.initProperties();this.clearGrid();this.tileSize=this.options.tileSize;this.setTileSize();this.moveTo(null,true);}},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer.Grid(this.name,this.url,this.params,this.getOptions());}
|
|
obj=OpenLayers.Layer.HTTPRequest.prototype.clone.apply(this,[obj]);if(this.tileSize!=null){obj.tileSize=this.tileSize.clone();}
|
|
obj.grid=[];obj.gridResolution=null;obj.backBuffer=null;obj.backBufferTimerId=null;obj.loading=false;obj.numLoadingTiles=0;return obj;},moveTo:function(bounds,zoomChanged,dragging){OpenLayers.Layer.HTTPRequest.prototype.moveTo.apply(this,arguments);bounds=bounds||this.map.getExtent();if(bounds!=null){var forceReTile=!this.grid.length||zoomChanged;var tilesBounds=this.getTilesBounds();var resolution=this.map.getResolution();var serverResolution=this.getServerResolution(resolution);if(this.singleTile){if(forceReTile||(!dragging&&!tilesBounds.containsBounds(bounds))){if(zoomChanged&&this.transitionEffect!=='resize'){this.removeBackBuffer();}
|
|
if(!zoomChanged||this.transitionEffect==='resize'){this.applyBackBuffer(resolution);}
|
|
this.initSingleTile(bounds);}}else{forceReTile=forceReTile||!tilesBounds.intersectsBounds(bounds,{worldBounds:this.map.baseLayer.wrapDateLine&&this.map.getMaxExtent()});if(forceReTile){if(zoomChanged&&(this.transitionEffect==='resize'||this.gridResolution===resolution)){this.applyBackBuffer(resolution);}
|
|
this.initGriddedTiles(bounds);}else{this.moveGriddedTiles();}}}},getTileData:function(loc){var data=null,x=loc.lon,y=loc.lat,numRows=this.grid.length;if(this.map&&numRows){var res=this.map.getResolution(),tileWidth=this.tileSize.w,tileHeight=this.tileSize.h,bounds=this.grid[0][0].bounds,left=bounds.left,top=bounds.top;if(x<left){if(this.map.baseLayer.wrapDateLine){var worldWidth=this.map.getMaxExtent().getWidth();var worldsAway=Math.ceil((left-x)/worldWidth);x+=worldWidth*worldsAway;}}
|
|
var dtx=(x-left)/(res*tileWidth);var dty=(top-y)/(res*tileHeight);var col=Math.floor(dtx);var row=Math.floor(dty);if(row>=0&&row<numRows){var tile=this.grid[row][col];if(tile){data={tile:tile,i:Math.floor((dtx-col)*tileWidth),j:Math.floor((dty-row)*tileHeight)};}}}
|
|
return data;},destroyTile:function(tile){this.removeTileMonitoringHooks(tile);tile.destroy();},getServerResolution:function(resolution){var distance=Number.POSITIVE_INFINITY;resolution=resolution||this.map.getResolution();if(this.serverResolutions&&OpenLayers.Util.indexOf(this.serverResolutions,resolution)===-1){var i,newDistance,newResolution,serverResolution;for(i=this.serverResolutions.length-1;i>=0;i--){newResolution=this.serverResolutions[i];newDistance=Math.abs(newResolution-resolution);if(newDistance>distance){break;}
|
|
distance=newDistance;serverResolution=newResolution;}
|
|
resolution=serverResolution;}
|
|
return resolution;},getServerZoom:function(){var resolution=this.getServerResolution();return this.serverResolutions?OpenLayers.Util.indexOf(this.serverResolutions,resolution):this.map.getZoomForResolution(resolution)+(this.zoomOffset||0);},applyBackBuffer:function(resolution){if(this.backBufferTimerId!==null){this.removeBackBuffer();}
|
|
var backBuffer=this.backBuffer;if(!backBuffer){backBuffer=this.createBackBuffer();if(!backBuffer){return;}
|
|
if(resolution===this.gridResolution){this.div.insertBefore(backBuffer,this.div.firstChild);}else{this.map.layerContainerDiv.insertBefore(backBuffer,this.map.baseLayer.div);}
|
|
this.backBuffer=backBuffer;var topLeftTileBounds=this.grid[0][0].bounds;this.backBufferLonLat={lon:topLeftTileBounds.left,lat:topLeftTileBounds.top};this.backBufferResolution=this.gridResolution;}
|
|
var ratio=this.backBufferResolution/resolution;var tiles=backBuffer.childNodes,tile;for(var i=tiles.length-1;i>=0;--i){tile=tiles[i];tile.style.top=((ratio*tile._i*tile._h)|0)+'px';tile.style.left=((ratio*tile._j*tile._w)|0)+'px';tile.style.width=Math.round(ratio*tile._w)+'px';tile.style.height=Math.round(ratio*tile._h)+'px';}
|
|
var position=this.getViewPortPxFromLonLat(this.backBufferLonLat,resolution);var leftOffset=this.map.layerContainerOriginPx.x;var topOffset=this.map.layerContainerOriginPx.y;backBuffer.style.left=Math.round(position.x-leftOffset)+'px';backBuffer.style.top=Math.round(position.y-topOffset)+'px';},createBackBuffer:function(){var backBuffer;if(this.grid.length>0){backBuffer=document.createElement('div');backBuffer.id=this.div.id+'_bb';backBuffer.className='olBackBuffer';backBuffer.style.position='absolute';for(var i=0,lenI=this.grid.length;i<lenI;i++){for(var j=0,lenJ=this.grid[i].length;j<lenJ;j++){var tile=this.grid[i][j],markup=this.grid[i][j].createBackBuffer();if(markup){markup._i=i;markup._j=j;markup._w=tile.size.w;markup._h=tile.size.h;markup.id=tile.id+'_bb';backBuffer.appendChild(markup);}}}}
|
|
return backBuffer;},removeBackBuffer:function(){if(this._transitionElement){for(var i=this.transitionendEvents.length-1;i>=0;--i){OpenLayers.Event.stopObserving(this._transitionElement,this.transitionendEvents[i],this._removeBackBuffer);}
|
|
delete this._transitionElement;}
|
|
if(this.backBuffer){if(this.backBuffer.parentNode){this.backBuffer.parentNode.removeChild(this.backBuffer);}
|
|
this.backBuffer=null;this.backBufferResolution=null;if(this.backBufferTimerId!==null){window.clearTimeout(this.backBufferTimerId);this.backBufferTimerId=null;}}},moveByPx:function(dx,dy){if(!this.singleTile){this.moveGriddedTiles();}},setTileSize:function(size){if(this.singleTile){size=this.map.getSize();size.h=parseInt(size.h*this.ratio,10);size.w=parseInt(size.w*this.ratio,10);}
|
|
OpenLayers.Layer.HTTPRequest.prototype.setTileSize.apply(this,[size]);},getTilesBounds:function(){var bounds=null;var length=this.grid.length;if(length){var bottomLeftTileBounds=this.grid[length-1][0].bounds,width=this.grid[0].length*bottomLeftTileBounds.getWidth(),height=this.grid.length*bottomLeftTileBounds.getHeight();bounds=new OpenLayers.Bounds(bottomLeftTileBounds.left,bottomLeftTileBounds.bottom,bottomLeftTileBounds.left+width,bottomLeftTileBounds.bottom+height);}
|
|
return bounds;},initSingleTile:function(bounds){this.events.triggerEvent("retile");var center=bounds.getCenterLonLat();var tileWidth=bounds.getWidth()*this.ratio;var tileHeight=bounds.getHeight()*this.ratio;var tileBounds=new OpenLayers.Bounds(center.lon-(tileWidth/2),center.lat-(tileHeight/2),center.lon+(tileWidth/2),center.lat+(tileHeight/2));var px=this.map.getLayerPxFromLonLat({lon:tileBounds.left,lat:tileBounds.top});if(!this.grid.length){this.grid[0]=[];}
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var tile=this.grid[0][0];if(!tile){tile=this.addTile(tileBounds,px);this.addTileMonitoringHooks(tile);tile.draw();this.grid[0][0]=tile;}else{tile.moveTo(tileBounds,px);}
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this.removeExcessTiles(1,1);this.gridResolution=this.getServerResolution();},calculateGridLayout:function(bounds,origin,resolution){var tilelon=resolution*this.tileSize.w;var tilelat=resolution*this.tileSize.h;var offsetlon=bounds.left-origin.lon;var tilecol=Math.floor(offsetlon/tilelon)-this.buffer;var rowSign=this.rowSign;var offsetlat=rowSign*(origin.lat-bounds.top+tilelat);var tilerow=Math[~rowSign?'floor':'ceil'](offsetlat/tilelat)-this.buffer*rowSign;return{tilelon:tilelon,tilelat:tilelat,startcol:tilecol,startrow:tilerow};},getTileOrigin:function(){var origin=this.tileOrigin;if(!origin){var extent=this.getMaxExtent();var edges=({"tl":["left","top"],"tr":["right","top"],"bl":["left","bottom"],"br":["right","bottom"]})[this.tileOriginCorner];origin=new OpenLayers.LonLat(extent[edges[0]],extent[edges[1]]);}
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return origin;},getTileBoundsForGridIndex:function(row,col){var origin=this.getTileOrigin();var tileLayout=this.gridLayout;var tilelon=tileLayout.tilelon;var tilelat=tileLayout.tilelat;var startcol=tileLayout.startcol;var startrow=tileLayout.startrow;var rowSign=this.rowSign;return new OpenLayers.Bounds(origin.lon+(startcol+col)*tilelon,origin.lat-(startrow+row*rowSign)*tilelat*rowSign,origin.lon+(startcol+col+1)*tilelon,origin.lat-(startrow+(row-1)*rowSign)*tilelat*rowSign);},initGriddedTiles:function(bounds){this.events.triggerEvent("retile");var viewSize=this.map.getSize();var origin=this.getTileOrigin();var resolution=this.map.getResolution(),serverResolution=this.getServerResolution(),ratio=resolution/serverResolution,tileSize={w:this.tileSize.w/ratio,h:this.tileSize.h/ratio};var minRows=Math.ceil(viewSize.h/tileSize.h)+
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|
2*this.buffer+1;var minCols=Math.ceil(viewSize.w/tileSize.w)+
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|
2*this.buffer+1;var tileLayout=this.calculateGridLayout(bounds,origin,serverResolution);this.gridLayout=tileLayout;var tilelon=tileLayout.tilelon;var tilelat=tileLayout.tilelat;var layerContainerDivLeft=this.map.layerContainerOriginPx.x;var layerContainerDivTop=this.map.layerContainerOriginPx.y;var tileBounds=this.getTileBoundsForGridIndex(0,0);var startPx=this.map.getViewPortPxFromLonLat(new OpenLayers.LonLat(tileBounds.left,tileBounds.top));startPx.x=Math.round(startPx.x)-layerContainerDivLeft;startPx.y=Math.round(startPx.y)-layerContainerDivTop;var tileData=[],center=this.map.getCenter();var rowidx=0;do{var row=this.grid[rowidx];if(!row){row=[];this.grid.push(row);}
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|
var colidx=0;do{tileBounds=this.getTileBoundsForGridIndex(rowidx,colidx);var px=startPx.clone();px.x=px.x+colidx*Math.round(tileSize.w);px.y=px.y+rowidx*Math.round(tileSize.h);var tile=row[colidx];if(!tile){tile=this.addTile(tileBounds,px);this.addTileMonitoringHooks(tile);row.push(tile);}else{tile.moveTo(tileBounds,px,false);}
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|
var tileCenter=tileBounds.getCenterLonLat();tileData.push({tile:tile,distance:Math.pow(tileCenter.lon-center.lon,2)+
|
|
Math.pow(tileCenter.lat-center.lat,2)});colidx+=1;}while((tileBounds.right<=bounds.right+tilelon*this.buffer)||colidx<minCols);rowidx+=1;}while((tileBounds.bottom>=bounds.bottom-tilelat*this.buffer)||rowidx<minRows);this.removeExcessTiles(rowidx,colidx);var resolution=this.getServerResolution();this.gridResolution=resolution;tileData.sort(function(a,b){return a.distance-b.distance;});for(var i=0,ii=tileData.length;i<ii;++i){tileData[i].tile.draw();}},getMaxExtent:function(){return this.maxExtent;},addTile:function(bounds,position){var tile=new this.tileClass(this,position,bounds,null,this.tileSize,this.tileOptions);this.events.triggerEvent("addtile",{tile:tile});return tile;},addTileMonitoringHooks:function(tile){var replacingCls='olTileReplacing';tile.onLoadStart=function(){if(this.loading===false){this.loading=true;this.events.triggerEvent("loadstart");}
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|
this.events.triggerEvent("tileloadstart",{tile:tile});this.numLoadingTiles++;if(!this.singleTile&&this.backBuffer&&this.gridResolution===this.backBufferResolution){OpenLayers.Element.addClass(tile.imgDiv,replacingCls);}};tile.onLoadEnd=function(evt){this.numLoadingTiles--;var aborted=evt.type==='unload';this.events.triggerEvent("tileloaded",{tile:tile,aborted:aborted});if(!this.singleTile&&!aborted&&this.backBuffer&&this.gridResolution===this.backBufferResolution){if(OpenLayers.Element.getStyle(tile.imgDiv,'display')==='none'){var bufferTile=document.getElementById(tile.id+'_bb');if(bufferTile){bufferTile.parentNode.removeChild(bufferTile);}}
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|
OpenLayers.Element.removeClass(tile.imgDiv,replacingCls);}
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|
if(this.numLoadingTiles===0){if(this.backBuffer){this._transitionElement=tile.imgDiv;for(var i=this.transitionendEvents.length-1;i>=0;--i){OpenLayers.Event.observe(this._transitionElement,this.transitionendEvents[i],this._removeBackBuffer);}
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|
this.backBufferTimerId=window.setTimeout(this._removeBackBuffer,this.removeBackBufferDelay);}
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|
this.loading=false;this.events.triggerEvent("loadend");}};tile.onLoadError=function(){this.events.triggerEvent("tileerror",{tile:tile});};tile.events.on({"loadstart":tile.onLoadStart,"loadend":tile.onLoadEnd,"unload":tile.onLoadEnd,"loaderror":tile.onLoadError,scope:this});},removeTileMonitoringHooks:function(tile){tile.unload();tile.events.un({"loadstart":tile.onLoadStart,"loadend":tile.onLoadEnd,"unload":tile.onLoadEnd,"loaderror":tile.onLoadError,scope:this});},moveGriddedTiles:function(){var buffer=this.buffer+1;while(true){var tlTile=this.grid[0][0];var tlViewPort={x:tlTile.position.x+
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|
this.map.layerContainerOriginPx.x,y:tlTile.position.y+
|
|
this.map.layerContainerOriginPx.y};var ratio=this.getServerResolution()/this.map.getResolution();var tileSize={w:Math.round(this.tileSize.w*ratio),h:Math.round(this.tileSize.h*ratio)};if(tlViewPort.x>-tileSize.w*(buffer-1)){this.shiftColumn(true,tileSize);}else if(tlViewPort.x<-tileSize.w*buffer){this.shiftColumn(false,tileSize);}else if(tlViewPort.y>-tileSize.h*(buffer-1)){this.shiftRow(true,tileSize);}else if(tlViewPort.y<-tileSize.h*buffer){this.shiftRow(false,tileSize);}else{break;}}},shiftRow:function(prepend,tileSize){var grid=this.grid;var rowIndex=prepend?0:(grid.length-1);var sign=prepend?-1:1;var rowSign=this.rowSign;var tileLayout=this.gridLayout;tileLayout.startrow+=sign*rowSign;var modelRow=grid[rowIndex];var row=grid[prepend?'pop':'shift']();for(var i=0,len=row.length;i<len;i++){var tile=row[i];var position=modelRow[i].position.clone();position.y+=tileSize.h*sign;tile.moveTo(this.getTileBoundsForGridIndex(rowIndex,i),position);}
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|
grid[prepend?'unshift':'push'](row);},shiftColumn:function(prepend,tileSize){var grid=this.grid;var colIndex=prepend?0:(grid[0].length-1);var sign=prepend?-1:1;var tileLayout=this.gridLayout;tileLayout.startcol+=sign;for(var i=0,len=grid.length;i<len;i++){var row=grid[i];var position=row[colIndex].position.clone();var tile=row[prepend?'pop':'shift']();position.x+=tileSize.w*sign;tile.moveTo(this.getTileBoundsForGridIndex(i,colIndex),position);row[prepend?'unshift':'push'](tile);}},removeExcessTiles:function(rows,columns){var i,l;while(this.grid.length>rows){var row=this.grid.pop();for(i=0,l=row.length;i<l;i++){var tile=row[i];this.destroyTile(tile);}}
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|
for(i=0,l=this.grid.length;i<l;i++){while(this.grid[i].length>columns){var row=this.grid[i];var tile=row.pop();this.destroyTile(tile);}}},onMapResize:function(){if(this.singleTile){this.clearGrid();this.setTileSize();}},getTileBounds:function(viewPortPx){var maxExtent=this.maxExtent;var resolution=this.getResolution();var tileMapWidth=resolution*this.tileSize.w;var tileMapHeight=resolution*this.tileSize.h;var mapPoint=this.getLonLatFromViewPortPx(viewPortPx);var tileLeft=maxExtent.left+(tileMapWidth*Math.floor((mapPoint.lon-
|
|
maxExtent.left)/tileMapWidth));var tileBottom=maxExtent.bottom+(tileMapHeight*Math.floor((mapPoint.lat-
|
|
maxExtent.bottom)/tileMapHeight));return new OpenLayers.Bounds(tileLeft,tileBottom,tileLeft+tileMapWidth,tileBottom+tileMapHeight);},CLASS_NAME:"OpenLayers.Layer.Grid"});OpenLayers.Control.PinchZoom=OpenLayers.Class(OpenLayers.Control,{type:OpenLayers.Control.TYPE_TOOL,pinchOrigin:null,currentCenter:null,autoActivate:true,preserveCenter:false,initialize:function(options){OpenLayers.Control.prototype.initialize.apply(this,arguments);this.handler=new OpenLayers.Handler.Pinch(this,{start:this.pinchStart,move:this.pinchMove,done:this.pinchDone},this.handlerOptions);},pinchStart:function(evt,pinchData){var xy=(this.preserveCenter)?this.map.getPixelFromLonLat(this.map.getCenter()):evt.xy;this.pinchOrigin=xy;this.currentCenter=xy;},pinchMove:function(evt,pinchData){var scale=pinchData.scale;var containerOrigin=this.map.layerContainerOriginPx;var pinchOrigin=this.pinchOrigin;var current=(this.preserveCenter)?this.map.getPixelFromLonLat(this.map.getCenter()):evt.xy;var dx=Math.round((containerOrigin.x+current.x-pinchOrigin.x)+(scale-1)*(containerOrigin.x-pinchOrigin.x));var dy=Math.round((containerOrigin.y+current.y-pinchOrigin.y)+(scale-1)*(containerOrigin.y-pinchOrigin.y));this.map.applyTransform(dx,dy,scale);this.currentCenter=current;},pinchDone:function(evt,start,last){this.map.applyTransform();var zoom=this.map.getZoomForResolution(this.map.getResolution()/last.scale,true);if(zoom!==this.map.getZoom()||!this.currentCenter.equals(this.pinchOrigin)){var resolution=this.map.getResolutionForZoom(zoom);var location=this.map.getLonLatFromPixel(this.pinchOrigin);var zoomPixel=this.currentCenter;var size=this.map.getSize();location.lon+=resolution*((size.w/2)-zoomPixel.x);location.lat-=resolution*((size.h/2)-zoomPixel.y);this.map.div.clientWidth=this.map.div.clientWidth;this.map.setCenter(location,zoom);}},CLASS_NAME:"OpenLayers.Control.PinchZoom"});OpenLayers.Control.TouchNavigation=OpenLayers.Class(OpenLayers.Control,{dragPan:null,dragPanOptions:null,pinchZoom:null,pinchZoomOptions:null,clickHandlerOptions:null,documentDrag:false,autoActivate:true,initialize:function(options){this.handlers={};OpenLayers.Control.prototype.initialize.apply(this,arguments);},destroy:function(){this.deactivate();if(this.dragPan){this.dragPan.destroy();}
|
|
this.dragPan=null;if(this.pinchZoom){this.pinchZoom.destroy();delete this.pinchZoom;}
|
|
OpenLayers.Control.prototype.destroy.apply(this,arguments);},activate:function(){if(OpenLayers.Control.prototype.activate.apply(this,arguments)){this.dragPan.activate();this.handlers.click.activate();this.pinchZoom.activate();return true;}
|
|
return false;},deactivate:function(){if(OpenLayers.Control.prototype.deactivate.apply(this,arguments)){this.dragPan.deactivate();this.handlers.click.deactivate();this.pinchZoom.deactivate();return true;}
|
|
return false;},draw:function(){var clickCallbacks={click:this.defaultClick,dblclick:this.defaultDblClick};var clickOptions=OpenLayers.Util.extend({"double":true,stopDouble:true,pixelTolerance:2},this.clickHandlerOptions);this.handlers.click=new OpenLayers.Handler.Click(this,clickCallbacks,clickOptions);this.dragPan=new OpenLayers.Control.DragPan(OpenLayers.Util.extend({map:this.map,documentDrag:this.documentDrag},this.dragPanOptions));this.dragPan.draw();this.pinchZoom=new OpenLayers.Control.PinchZoom(OpenLayers.Util.extend({map:this.map},this.pinchZoomOptions));},defaultClick:function(evt){if(evt.lastTouches&&evt.lastTouches.length==2){this.map.zoomOut();}},defaultDblClick:function(evt){this.map.zoomTo(this.map.zoom+1,evt.xy);},CLASS_NAME:"OpenLayers.Control.TouchNavigation"});OpenLayers.Layer.XYZ=OpenLayers.Class(OpenLayers.Layer.Grid,{isBaseLayer:true,sphericalMercator:false,zoomOffset:0,serverResolutions:null,initialize:function(name,url,options){if(options&&options.sphericalMercator||this.sphericalMercator){options=OpenLayers.Util.extend({projection:"EPSG:900913",numZoomLevels:19},options);}
|
|
OpenLayers.Layer.Grid.prototype.initialize.apply(this,[name||this.name,url||this.url,{},options]);},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer.XYZ(this.name,this.url,this.getOptions());}
|
|
obj=OpenLayers.Layer.Grid.prototype.clone.apply(this,[obj]);return obj;},getURL:function(bounds){var xyz=this.getXYZ(bounds);var url=this.url;if(OpenLayers.Util.isArray(url)){var s=''+xyz.x+xyz.y+xyz.z;url=this.selectUrl(s,url);}
|
|
return OpenLayers.String.format(url,xyz);},getXYZ:function(bounds){var res=this.getServerResolution();var x=Math.round((bounds.left-this.maxExtent.left)/(res*this.tileSize.w));var y=Math.round((this.maxExtent.top-bounds.top)/(res*this.tileSize.h));var z=this.getServerZoom();if(this.wrapDateLine){var limit=Math.pow(2,z);x=((x%limit)+limit)%limit;}
|
|
return{'x':x,'y':y,'z':z};},setMap:function(map){OpenLayers.Layer.Grid.prototype.setMap.apply(this,arguments);if(!this.tileOrigin){this.tileOrigin=new OpenLayers.LonLat(this.maxExtent.left,this.maxExtent.bottom);}},CLASS_NAME:"OpenLayers.Layer.XYZ"});OpenLayers.Layer.OSM=OpenLayers.Class(OpenLayers.Layer.XYZ,{name:"OpenStreetMap",url:['http://a.tile.openstreetmap.org/${z}/${x}/${y}.png','http://b.tile.openstreetmap.org/${z}/${x}/${y}.png','http://c.tile.openstreetmap.org/${z}/${x}/${y}.png'],attribution:"© <a href='http://www.openstreetmap.org/copyright'>OpenStreetMap</a> contributors",sphericalMercator:true,wrapDateLine:true,tileOptions:null,initialize:function(name,url,options){OpenLayers.Layer.XYZ.prototype.initialize.apply(this,arguments);this.tileOptions=OpenLayers.Util.extend({crossOriginKeyword:'anonymous'},this.options&&this.options.tileOptions);},clone:function(obj){if(obj==null){obj=new OpenLayers.Layer.OSM(this.name,this.url,this.getOptions());}
|
|
obj=OpenLayers.Layer.XYZ.prototype.clone.apply(this,[obj]);return obj;},CLASS_NAME:"OpenLayers.Layer.OSM"});OpenLayers.Control.Zoom=OpenLayers.Class(OpenLayers.Control,{zoomInText:"+",zoomInId:"olZoomInLink",zoomOutText:"\u2212",zoomOutId:"olZoomOutLink",draw:function(){var div=OpenLayers.Control.prototype.draw.apply(this),links=this.getOrCreateLinks(div),zoomIn=links.zoomIn,zoomOut=links.zoomOut,eventsInstance=this.map.events;if(zoomOut.parentNode!==div){eventsInstance=this.events;eventsInstance.attachToElement(zoomOut.parentNode);}
|
|
eventsInstance.register("buttonclick",this,this.onZoomClick);this.zoomInLink=zoomIn;this.zoomOutLink=zoomOut;return div;},getOrCreateLinks:function(el){var zoomIn=document.getElementById(this.zoomInId),zoomOut=document.getElementById(this.zoomOutId);if(!zoomIn){zoomIn=document.createElement("a");zoomIn.href="#zoomIn";zoomIn.appendChild(document.createTextNode(this.zoomInText));zoomIn.className="olControlZoomIn";el.appendChild(zoomIn);}
|
|
OpenLayers.Element.addClass(zoomIn,"olButton");if(!zoomOut){zoomOut=document.createElement("a");zoomOut.href="#zoomOut";zoomOut.appendChild(document.createTextNode(this.zoomOutText));zoomOut.className="olControlZoomOut";el.appendChild(zoomOut);}
|
|
OpenLayers.Element.addClass(zoomOut,"olButton");return{zoomIn:zoomIn,zoomOut:zoomOut};},onZoomClick:function(evt){var button=evt.buttonElement;if(button===this.zoomInLink){this.map.zoomIn();}else if(button===this.zoomOutLink){this.map.zoomOut();}},destroy:function(){if(this.map){this.map.events.unregister("buttonclick",this,this.onZoomClick);}
|
|
delete this.zoomInLink;delete this.zoomOutLink;OpenLayers.Control.prototype.destroy.apply(this);},CLASS_NAME:"OpenLayers.Control.Zoom"}); |