?? openlayers.js
字號(hào):
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;return true;},deactivate:function(){if(this.active){if(this.handler){this.handler.deactivate();}this.active=false;return true;}return false;},CLASS_NAME:"OpenLayers.Control"});OpenLayers.Control.TYPE_BUTTON=1;OpenLayers.Control.TYPE_TOGGLE=2;OpenLayers.Control.TYPE_TOOL=3;OpenLayers.Icon=OpenLayers.Class({url:null,size:null,offset:null,calculateOffset:null,imageDiv:null,px:null,initialize:function(url,size,offset,calculateOffset){this.url=url;this.size=(size)?size:new OpenLayers.Size(20,20);this.offset=offset?offset:new OpenLayers.Pixel(-(this.size.w/2),-(this.size.h/2));this.calculateOffset=calculateOffset;var id=OpenLayers.Util.createUniqueID("OL_Icon_");this.imageDiv=OpenLayers.Util.createAlphaImageDiv(id);},destroy:function(){OpenLayers.Event.stopObservingElement(this.imageDiv.firstChild);this.imageDiv.innerHTML="";this.imageDiv=null;},clone:function(){return new OpenLayers.Icon(this.url,this.size,this.offset,this.calculateOffset);},setSize:function(size){if(size!=null){this.size=size;}this.draw();},draw:function(px){OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv,null,null,this.size,this.url,"absolute");this.moveTo(px);return this.imageDiv;},setOpacity:function(opacity){OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv,null,null,null,null,null,null,null,opacity);},moveTo:function(px){if(px!=null){this.px=px;}if(this.imageDiv!=null){if(this.px==null){this.display(false);}else{if(this.calculateOffset){this.offset=this.calculateOffset(this.size);}var offsetPx=this.px.offset(this.offset);OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv,null,offsetPx);}}},display:function(display){this.imageDiv.style.display=(display)?"":"none";},CLASS_NAME:"OpenLayers.Icon"});OpenLayers.Popup=OpenLayers.Class({events:null,id:"",lonlat:null,div:null,size:null,contentHTML:"",backgroundColor:"",opacity:"",border:"",contentDiv:null,groupDiv:null,padding:5,map:null,initialize:function(id,lonlat,size,contentHTML,closeBox){if(id==null){id=OpenLayers.Util.createUniqueID(this.CLASS_NAME+"_");}this.id=id;this.lonlat=lonlat;this.size=(size!=null)?size:new OpenLayers.Size(OpenLayers.Popup.WIDTH,OpenLayers.Popup.HEIGHT);if(contentHTML!=null){this.contentHTML=contentHTML;}this.backgroundColor=OpenLayers.Popup.COLOR;this.opacity=OpenLayers.Popup.OPACITY;this.border=OpenLayers.Popup.BORDER;this.div=OpenLayers.Util.createDiv(this.id,null,null,null,null,null,"hidden");this.div.className='olPopup';this.groupDiv=OpenLayers.Util.createDiv(null,null,null,null,"relative",null,"hidden");var id=this.div.id+"_contentDiv";this.contentDiv=OpenLayers.Util.createDiv(id,null,this.size.clone(),null,"relative",null,"hidden");this.contentDiv.className='olPopupContent';this.groupDiv.appendChild(this.contentDiv);this.div.appendChild(this.groupDiv);if(closeBox){var closeSize=new OpenLayers.Size(17,17);var img=OpenLayers.Util.getImagesLocation()+"close.gif";var closeImg=OpenLayers.Util.createAlphaImageDiv(this.id+"_close",null,closeSize,img);closeImg.style.right=this.padding+"px";closeImg.style.top=this.padding+"px";this.groupDiv.appendChild(closeImg);var closePopup=function(e){this.hide();OpenLayers.Event.stop(e);}OpenLayers.Event.observe(closeImg,"click",OpenLayers.Function.bindAsEventListener(closePopup,this));}this.registerEvents();},destroy:function(){if(this.map!=null){this.map.removePopup(this);this.map=null;}this.events.destroy();this.events=null;this.div=null;},draw:function(px){if(px==null){if((this.lonlat!=null)&&(this.map!=null)){px=this.map.getLayerPxFromLonLat(this.lonlat);}}this.setSize();this.setBackgroundColor();this.setOpacity();this.setBorder();this.setContentHTML();this.moveTo(px);return this.div;},updatePosition:function(){if((this.lonlat)&&(this.map)){var px=this.map.getLayerPxFromLonLat(this.lonlat);if(px){this.moveTo(px);}}},moveTo:function(px){if((px!=null)&&(this.div!=null)){this.div.style.left=px.x+"px";this.div.style.top=px.y+"px";}},visible:function(){return OpenLayers.Element.visible(this.div);},toggle:function(){OpenLayers.Element.toggle(this.div);},show:function(){OpenLayers.Element.show(this.div);},hide:function(){OpenLayers.Element.hide(this.div);},setSize:function(size){if(size!=undefined){this.size=size;}if(this.div!=null){this.div.style.width=this.size.w+"px";this.div.style.height=this.size.h+"px";}if(this.contentDiv!=null){this.contentDiv.style.width=this.size.w+"px";this.contentDiv.style.height=this.size.h+"px";}},setBackgroundColor:function(color){if(color!=undefined){this.backgroundColor=color;}if(this.div!=null){this.div.style.backgroundColor=this.backgroundColor;}},setOpacity:function(opacity){if(opacity!=undefined){this.opacity=opacity;}if(this.div!=null){this.div.style.opacity=this.opacity;this.div.style.filter='alpha(opacity='+this.opacity*100+')';}},setBorder:function(border){if(border!=undefined){this.border=border;}if(this.div!=null){this.div.style.border=this.border;}},setContentHTML:function(contentHTML){if(contentHTML!=null){this.contentHTML=contentHTML;}if(this.contentDiv!=null){this.contentDiv.innerHTML=this.contentHTML;}},registerEvents:function(){this.events=new OpenLayers.Events(this,this.div,null,true);this.events.register("mousedown",this,this.onmousedown);this.events.register("mousemove",this,this.onmousemove);this.events.register("mouseup",this,this.onmouseup);this.events.register("click",this,this.onclick);this.events.register("mouseout",this,this.onmouseout);this.events.register("dblclick",this,this.ondblclick);},onmousedown:function(evt){this.mousedown=true;OpenLayers.Event.stop(evt,true);},onmousemove:function(evt){if(this.mousedown){OpenLayers.Event.stop(evt,true);}},onmouseup:function(evt){if(this.mousedown){this.mousedown=false;OpenLayers.Event.stop(evt,true);}},onclick:function(evt){OpenLayers.Event.stop(evt,true);},onmouseout:function(evt){this.mousedown=false;},ondblclick:function(evt){OpenLayers.Event.stop(evt,true);},CLASS_NAME:"OpenLayers.Popup"});OpenLayers.Popup.WIDTH=200;OpenLayers.Popup.HEIGHT=200;OpenLayers.Popup.COLOR="white";OpenLayers.Popup.OPACITY=1;OpenLayers.Popup.BORDER="0px";OpenLayers.Renderer=OpenLayers.Class({container:null,extent:null,size:null,resolution:null,map:null,initialize:function(containerID){this.container=OpenLayers.Util.getElement(containerID);},destroy:function(){this.container=null;this.extent=null;this.size=null;this.resolution=null;this.map=null;},supported:function(){return false;},setExtent:function(extent){this.extent=extent.clone();this.resolution=null;},setSize:function(size){this.size=size.clone();this.resolution=null;},getResolution:function(){this.resolution=this.resolution||this.map.getResolution();return this.resolution;},drawFeature:function(feature,style){if(style==null){style=feature.style;}this.drawGeometry(feature.geometry,style,feature.id);},drawGeometry:function(geometry,style,featureId){},clear:function(){},getFeatureIdFromEvent:function(evt){},eraseFeatures:function(features){if(!(features instanceof Array)){features=[features];}for(var i=0;i<features.length;++i){this.eraseGeometry(features[i].geometry);}},eraseGeometry:function(geometry){},CLASS_NAME:"OpenLayers.Renderer"});OpenLayers.Rico.Color=OpenLayers.Class({initialize:function(red,green,blue){this.rgb={r:red,g:green,b:blue};},setRed:function(r){this.rgb.r=r;},setGreen:function(g){this.rgb.g=g;},setBlue:function(b){this.rgb.b=b;},setHue:function(h){var hsb=this.asHSB();hsb.h=h;this.rgb=OpenLayers.Rico.Color.HSBtoRGB(hsb.h,hsb.s,hsb.b);},setSaturation:function(s){var hsb=this.asHSB();hsb.s=s;this.rgb=OpenLayers.Rico.Color.HSBtoRGB(hsb.h,hsb.s,hsb.b);},setBrightness:function(b){var hsb=this.asHSB();hsb.b=b;this.rgb=OpenLayers.Rico.Color.HSBtoRGB(hsb.h,hsb.s,hsb.b);},darken:function(percent){var hsb=this.asHSB();this.rgb=OpenLayers.Rico.Color.HSBtoRGB(hsb.h,hsb.s,Math.max(hsb.b-percent,0));},brighten:function(percent){var hsb=this.asHSB();this.rgb=OpenLayers.Rico.Color.HSBtoRGB(hsb.h,hsb.s,Math.min(hsb.b+percent,1));},blend:function(other){this.rgb.r=Math.floor((this.rgb.r+other.rgb.r)/2);this.rgb.g=Math.floor((this.rgb.g+other.rgb.g)/2);this.rgb.b=Math.floor((this.rgb.b+other.rgb.b)/2);},isBright:function(){var hsb=this.asHSB();return this.asHSB().b>0.5;},isDark:function(){return!this.isBright();},asRGB:function(){return"rgb("+this.rgb.r+","+this.rgb.g+","+this.rgb.b+")";},asHex:function(){return"#"+this.rgb.r.toColorPart()+this.rgb.g.toColorPart()+this.rgb.b.toColorPart();},asHSB:function(){return OpenLayers.Rico.Color.RGBtoHSB(this.rgb.r,this.rgb.g,this.rgb.b);},toString:function(){return this.asHex();}});OpenLayers.Rico.Color.createFromHex=function(hexCode){if(hexCode.length==4){var shortHexCode=hexCode;var hexCode='#';for(var i=1;i<4;i++)hexCode+=(shortHexCode.charAt(i)+shortHexCode.charAt(i));}if(hexCode.indexOf('#')==0)hexCode=hexCode.substring(1);var red=hexCode.substring(0,2);var green=hexCode.substring(2,4);var blue=hexCode.substring(4,6);return new OpenLayers.Rico.Color(parseInt(red,16),parseInt(green,16),parseInt(blue,16));}OpenLayers.Rico.Color.createColorFromBackground=function(elem){var actualColor=RicoUtil.getElementsComputedStyle(OpenLayers.Util.getElement(elem),"backgroundColor","background-color");if(actualColor=="transparent"&&elem.parentNode)return OpenLayers.Rico.Color.createColorFromBackground(elem.parentNode);if(actualColor==null)return new OpenLayers.Rico.Color(255,255,255);if(actualColor.indexOf("rgb(")==0){var colors=actualColor.substring(4,actualColor.length-1);var colorArray=colors.split(",");return new OpenLayers.Rico.Color(parseInt(colorArray[0]),parseInt(colorArray[1]),parseInt(colorArray[2]));}else if(actualColor.indexOf("#")==0){return OpenLayers.Rico.Color.createFromHex(actualColor);}elsereturn new OpenLayers.Rico.Color(255,255,255);}OpenLayers.Rico.Color.HSBtoRGB=function(hue,saturation,brightness){var red=0;var green=0;var blue=0;if(saturation==0){red=parseInt(brightness*255.0+0.5);green=red;blue=red;}else{var h=(hue-Math.floor(hue))*6.0;var f=h-Math.floor(h);var p=brightness*(1.0-saturation);var q=brightness*(1.0-saturation*f);var t=brightness*(1.0-(saturation*(1.0-f)));switch(parseInt(h)){case 0:red=(brightness*255.0+0.5);green=(t*255.0+0.5);blue=(p*255.0+0.5);break;case 1:red=(q*255.0+0.5);green=(brightness*255.0+0.5);blue=(p*255.0+0.5);break;case 2:red=(p*255.0+0.5);green=(brightness*255.0+0.5);blue=(t*255.0+0.5);break;case 3:red=(p*255.0+0.5);green=(q*255.0+0.5);blue=(brightness*255.0+0.5);break;case 4:red=(t*255.0+0.5);green=(p*255.0+0.5);blue=(brightness*255.0+0.5);break;case 5:red=(brightness*255.0+0.5);green=(p*255.0+0.5);blue=(q*255.0+0.5);break;}}return{r:parseInt(red),g:parseInt(green),b:parseInt(blue)};}OpenLayers.Rico.Color.RGBtoHSB=function(r,g,b){var hue;var saturation;var brightness;var cmax=(r>g)?r:g;if(b>cmax)cmax=b;var cmin=(r<g)?r:g;if(b<cmin)cmin=b;brightness=cmax/255.0;if(cmax!=0)saturation=(cmax-cmin)/cmax;elsesaturation=0;if(saturation==0)hue=0;else{var redc=(cmax-r)/(cmax-cmin);var greenc=(cmax-g)/(cmax-cmin);var bluec=(cmax-b)/(cmax-cmin);if(r==cmax)hue=bluec-greenc;else if(g==cmax)hue=2.0+redc-bluec;elsehue=4.0+greenc-redc;hue=hue/6.0;if(hue<0)hue=hue+1.0;}return{h:hue,s:saturation,b:brightness};}OpenLayers.Control.ArgParser=OpenLayers.Class(OpenLayers.Control,{center:null,zoom:null,layers:null,initialize:function(options){OpenLayers.Control.prototype.initialize.apply(this,arguments);},setMap:function(map){OpenLayers.Control.prototype.setMap.apply(this,arguments);for(var i=0;i<this.map.controls.length;i++){var control=this.map.controls[i];if((control!=this)&&(control.CLASS_NAME=="OpenLayers.Control.ArgParser")){break;}}if(i==this.map.controls.length){var args=OpenLayers.Util.getParameters();if(args.lat&&args.lon){this.center=new OpenLayers.LonLat(parseFloat(args.lon),parseFloat(args.lat));if(args.zoom){this.zoom=parseInt(args.zoom);}this.map.events.register('changebaselayer',this,this.setCenter);this.setCenter();}if(args.layers){this.layers=args.layers;this.map.events.register('addlayer',this,this.configureLayers);this.configureLayers();}}},setCenter:function(){if(this.map.baseLayer){this.map.events.unregister('changebaselayer',this,this.setCenter);this.map.setCenter(this.center,this.zoom);}},configureLayers:function(){if(this.layers.length==this.map.layers.length){this.map.events.unregister('addlayer',this,this.configureLayers);for(var i=0;i<this.layers.length;i++){var layer=this.map.layers[i];var c=this.layers.charAt(i);if(c=="B"){this.map.setBaseLayer(layer);}else if((c=="T")||(c=="F")){layer.setVisibility(c=="T");}}}},CLASS_NAME:"OpenLayers.Control.ArgParser"});OpenLayers.Control.Attribution=OpenLayers.Class(OpenLayers.Control,{separator:", ",initialize:function(options){OpenLayers.Control.prototype.initialize.apply(this,arguments);},destroy:function(){this.map.events.unregister("removelayer",this,this.updateAttribution);this.map.events.unregister("addlayer",this,this.updateAttribution);this.map.events.unregister("changelayer",this,this.updateAttribution);this.map.events.unregister("changebaselayer",this,this.updateAttribution);OpenLayers.Control.prototype.destroy.apply(this,arguments);},draw:function(){OpenLayers.Control.prototype.draw.apply(this,arguments);this.map.events.register('changebaselayer',this,this.updateAttribution);this.map.events.register('changelayer',this,this.updateAttribution);this.map.events.register('addlayer',this,this.updateAttribution);this.map.events.register('removelayer',this,this.updateAttribution);this.updateAttribution();return this.div;},updateAttribution:function(){var attributions=[];if(this.map&&this.map.layers){for(var i=0;i<this.map.layers.length;i++){var layer=this.map.layers[i];if(layer.attribution&&layer.getVisibility()){attributions.push(layer.attribution);}}this.div.innerHTML=attributions.join(this.separator);}},CLASS_NAME:"OpenLayers.Control.Attribution"});OpenLayers.Control.LayerSwitcher=OpenLayers.Class(OpenLayers.Control,{activeColor:"darkblue",layerStates:null,layersDiv:null,baseLayersDiv:null,baseLayers:null,dataLbl:null,dataLayersDiv:null,dataLayers:null,minimizeDiv:null,maximizeDiv:null,ascending:true,initialize:function(options){OpenLayers.Control.prototype.initialize.apply(this,arguments);this.layerStates=[];},destroy:function(){OpenLayers.Event.stopObservingElement(this.div);OpenLayers.Event.stopObservingElement(this.minimizeDiv);OpenLayers.Event.stopObservingElement(this.maximizeDiv);this.clearLayersArray("base");this.clearLayersArray("data");this.map.events.unregister("addlayer",this,this.redraw);this.map.events.unregister("changelayer",this,this.redraw);this.map.events.unregister("removelayer",this,this.redraw);this.map.events.unregister("changebaselayer",this,this.redraw);OpenLayers.Control.prototype.destroy.apply(this,arguments);},setMap:function(map){OpenLayers.Control.prototype.setMap.apply(this,arguments);this.map.events.register("addlayer",this,this.redraw);this.map.events.register("changelayer",this,this.redraw);this.map.events.register("removelayer",this,this.redraw);this.map.events.register("changebaselayer",this,this.redraw);},draw:function(){OpenLayers.Control.prototype.draw.apply(this);this.loadContents();if(!this.outsideViewport){this.minimizeControl();}this.redraw();return this.div;},clearLayersArray:function(layersType){var layers=this[layersType+"Layers"];if(layers){for(var i=0;i<layers.length;i++){var layer=layers[i];OpenLayers.Event.stopObservingElement(layer.inputElem);OpenLayers.Event.stopObservingElement(layer.labelSpan);}}this[layersType+"LayersDiv"].innerHTML="";this[layersType+"Layers"]=[];},checkRedraw:function(){var redraw=false;if(!this.layerStates.length||(this.map.layers.length!=this.layerStates.length)){redraw=true;}else{for(var i=0;i<this.layerStates.length;i++){var layerState=this.layerStates[i];var layer=this.map.layers[i];if((layerState.name!=layer.name)||(layerState.inRange!=layer.inRange)||(layerState.id!=layer.id)||(layerState.visibility!=layer.visibility)){redraw=true;break;}}}return redraw;},redraw:function(){if(!this.checkRedraw()){return this.div;}this.clearLayersArray("base");this.clearLayersArray("data");var containsOverlays=false;var containsBaseLayers=false;this.layerStates=new Array(this.map.layers.length);for(var i=0;i<this.map.layers.length;i++){var layer=this.map.layers[i];this.layerStates[i]={'name':layer.name,'visibility':layer.visibility,'inRange':layer.inRange,'id':layer.id};}var layers=this.map.layers.slice();if(!this.ascending){layers.reverse();}for(var i=0;i<layers.length;i++){var layer=layers[i];var baseLayer=layer.isBaseLayer;if(layer.displayInLayerSwitcher){if(baseLayer){containsBaseLayers=true;}else{containsOverlays=true;}var checked=(baseLayer)?(layer==this.map.baseLayer):layer.getVisibility();var inputElem=document.createElement("input");inputElem.id="input_"+layer.name;inputElem.name=(baseLayer)?"baseLayers":layer.name;inputElem.type=(baseLayer)
?? 快捷鍵說(shuō)明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -