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| var BMapGLLib=window.BMapGLLib=BMapGLLib||{};(function(){var T;var baidu=T=baidu||{version:"1.5.0"};baidu.guid="$BAIDU$";(function(){window[baidu.guid]=window[baidu.guid]||{};baidu.dom=baidu.dom||{};baidu.dom.g=function(id){if("string"==typeof id||id instanceof String){return document.getElementById(id)}else{if(id&&id.nodeName&&(id.nodeType==1||id.nodeType==9)){return id}}return null};baidu.g=baidu.G=baidu.dom.g;baidu.lang=baidu.lang||{};baidu.lang.isString=function(source){return"[object String]"==Object.prototype.toString.call(source)};baidu.isString=baidu.lang.isString;baidu.dom._g=function(id){if(baidu.lang.isString(id)){return document.getElementById(id)}return id};baidu._g=baidu.dom._g;baidu.dom.getDocument=function(element){element=baidu.dom.g(element);return element.nodeType==9?element:element.ownerDocument||element.document};baidu.browser=baidu.browser||{};baidu.browser.ie=baidu.ie=/msie (\d+\.\d+)/i.test(navigator.userAgent)?(document.documentMode||+RegExp["\x241"]):undefined;baidu.dom.getComputedStyle=function(element,key){element=baidu.dom._g(element);var doc=baidu.dom.getDocument(element),styles;if(doc.defaultView&&doc.defaultView.getComputedStyle){styles=doc.defaultView.getComputedStyle(element,null);if(styles){return styles[key]||styles.getPropertyValue(key)}}return""};baidu.dom._styleFixer=baidu.dom._styleFixer||{};baidu.dom._styleFilter=baidu.dom._styleFilter||[];baidu.dom._styleFilter.filter=function(key,value,method){var filters=baidu.dom._styleFilter;var filter;for(var i=0;filter=filters[i];i++){if(filter=filter[method]){value=filter(key,value)}}return value};baidu.string=baidu.string||{};baidu.string.toCamelCase=function(source){if(source.indexOf("-")<0&&source.indexOf("_")<0){return source}return source.replace(/[-_][^-_]/g,function(match){return match.charAt(1).toUpperCase()})};baidu.dom.getStyle=function(element,key){var dom=baidu.dom;element=dom.g(element);key=baidu.string.toCamelCase(key);var value=element.style[key]||(element.currentStyle?element.currentStyle[key]:"")||dom.getComputedStyle(element,key);if(!value){var fixer=dom._styleFixer[key];if(fixer){value=fixer.get?fixer.get(element):baidu.dom.getStyle(element,fixer)}}if(fixer=dom._styleFilter){value=fixer.filter(key,value,"get")}return value};baidu.getStyle=baidu.dom.getStyle;baidu.dom._NAME_ATTRS=(function(){var result={"cellpadding":"cellPadding","cellspacing":"cellSpacing","colspan":"colSpan","rowspan":"rowSpan","valign":"vAlign","usemap":"useMap","frameborder":"frameBorder"};if(baidu.browser.ie<8){result["for"]="htmlFor";result["class"]="className"}else{result["htmlFor"]="for";result["className"]="class"}return result})();baidu.dom.setAttr=function(element,key,value){element=baidu.dom.g(element);if("style"==key){element.style.cssText=value}else{key=baidu.dom._NAME_ATTRS[key]||key;element.setAttribute(key,value)}return element};baidu.setAttr=baidu.dom.setAttr;baidu.dom.setAttrs=function(element,attributes){element=baidu.dom.g(element);for(var key in attributes){baidu.dom.setAttr(element,key,attributes[key])}return element};baidu.setAttrs=baidu.dom.setAttrs;baidu.dom.create=function(tagName,opt_attributes){var el=document.createElement(tagName),attributes=opt_attributes||{};return baidu.dom.setAttrs(el,attributes)};baidu.object=baidu.object||{};baidu.extend=baidu.object.extend=function(target,source){for(var p in source){if(source.hasOwnProperty(p)){target[p]=source[p]}}return target}})();WORLD_SIZE_MC_HALF=20037726.372307256;WORLD_SIZE_MC=WORLD_SIZE_MC_HALF*2;var LuShu=BMapGLLib.LuShu=function(map,path,opts){if(!path||path.length<1){return}this._map=map;if(opts["geodesic"]){this._path=getGeodesicPath(path)}else{this._path=path}this.i=0;this._setTimeoutQuene=[];this._opts={icon:null,speed:400,defaultContent:""};if(!opts["landmarkPois"]){opts["landmarkPois"]=[]}this._setOptions(opts);this._rotation=0;if(!(this._opts.icon instanceof BMapGL.Icon)){this._opts.icon=defaultIcon}};LuShu.prototype._setOptions=function(opts){if(!opts){return}for(var p in opts){if(opts.hasOwnProperty(p)){this._opts[p]=opts[p]}}};LuShu.prototype.start=function(){var me=this,len=me._path.length;if(me.i&&me.i<len-1){if(!me._fromPause){return}else{if(!me._fromStop){me._moveNext(++me.i)}}}else{me._addMarker();me._timeoutFlag=setTimeout(function(){me._addInfoWin();if(me._opts.defaultContent==""){me.hideInfoWindow()}me._moveNext(me.i)},400)}this._fromPause=false;this._fromStop=false};LuShu.prototype.stop=function(){this.i=0;this._fromStop=true;clearInterval(this._intervalFlag);this._clearTimeout();for(var i=0,t=this._opts.landmarkPois,len=t.length;i<len;i++){t[i].bShow=false}};LuShu.prototype.pause=function(){clearInterval(this._intervalFlag);this._fromPause=true;this._clearTimeout()};LuShu.prototype.hideInfoWindow=function(){this._overlay._div.style.visibility="hidden"};LuShu.prototype.showInfoWindow=function(){this._overlay._div.style.visibility="visible"};baidu.object.extend(LuShu.prototype,{_addMarker:function(callback){if(this._marker){this.stop();this._map.removeOverlay(this._marker);
| clearTimeout(this._timeoutFlag)}this._overlay&&this._map.removeOverlay(this._overlay);var marker=new BMapGL.Marker(this._path[0]);this._opts.icon&&marker.setIcon(this._opts.icon);this._map.addOverlay(marker);marker.setAnimation(BMAP_ANIMATION_DROP);this._marker=marker},_addInfoWin:function(){var me=this;var overlay=new CustomOverlay(me._marker.getPosition(),me._opts.defaultContent);overlay.setRelatedClass(this);this._overlay=overlay;this._map.addOverlay(overlay)},_getMercator:function(poi){return this._map.getMapType().getProjection().lngLatToPoint(poi)},_getDistance:function(pxA,pxB){return Math.sqrt(Math.pow(pxA.x-pxB.x,2)+Math.pow(pxA.y-pxB.y,2))},_move:function(initPos,targetPos,effect){var me=this,currentCount=0,timer=10,step=this._opts.speed/(1000/timer),init_pos=BMapGL.Projection.convertLL2MC(initPos),target_pos=BMapGL.Projection.convertLL2MC(targetPos);init_pos=new BMapGL.Pixel(init_pos.lng,init_pos.lat);target_pos=new BMapGL.Pixel(target_pos.lng,target_pos.lat);var mcDis=me._getDistance(init_pos,target_pos);var direction=null;if(mcDis>30037726){if(target_pos.x<init_pos.x){target_pos.x+=WORLD_SIZE_MC;direction="right"}else{target_pos.x-=WORLD_SIZE_MC;direction="left"}}var count=Math.round(me._getDistance(init_pos,target_pos)/step);if(count<1){me._moveNext(++me.i);return}me._intervalFlag=setInterval(function(){if(currentCount>=count){clearInterval(me._intervalFlag);if(me.i>me._path.length){return}me._moveNext(++me.i)}else{currentCount++;var x=effect(init_pos.x,target_pos.x,currentCount,count),y=effect(init_pos.y,target_pos.y,currentCount,count),pos=BMapGL.Projection.convertMC2LL(new BMapGL.Point(x,y));if(pos.lng>180){pos.lng=pos.lng-360}if(pos.lng<-180){pos.lng=pos.lng+360}if(currentCount==1){var proPos=null;if(me.i-1>=0){proPos=me._path[me.i-1]}if(me._opts.enableRotation==true){me.setRotation(proPos,initPos,targetPos,direction)}if(me._opts.autoView){if(!me._map.getBounds().containsPoint(pos)){me._map.setCenter(pos)}}}if(me._opts.autoCenter){me._map.setCenter(pos,{noAnimation:true})}me._marker.setPosition(pos);me._setInfoWin(pos)}},timer)},setRotation:function(prePos,curPos,targetPos,direction){var me=this;var deg=0;curPos=me._map.pointToPixel(curPos);targetPos=me._map.pointToPixel(targetPos);if(targetPos.x!=curPos.x){var tan=(targetPos.y-curPos.y)/(targetPos.x-curPos.x),atan=Math.atan(tan);deg=atan*360/(2*Math.PI);if((!direction&&targetPos.x<curPos.x)||(direction==="left")){deg=-deg+90+90}else{deg=-deg}me._marker.setRotation(-deg)}else{var disy=targetPos.y-curPos.y;var bias=0;if(disy>0){bias=-1}else{bias=1}me._marker.setRotation(-bias*90)}return},linePixellength:function(from,to){return Math.sqrt(Math.abs(from.x-to.x)*Math.abs(from.x-to.x)+Math.abs(from.y-to.y)*Math.abs(from.y-to.y))},pointToPoint:function(from,to){return Math.abs(from.x-to.x)*Math.abs(from.x-to.x)+Math.abs(from.y-to.y)*Math.abs(from.y-to.y)},_moveNext:function(index){var me=this;if(index<this._path.length-1){me._move(me._path[index],me._path[index+1],me._tween.linear)}},_setInfoWin:function(pos){var me=this;if(!me._overlay){return}me._overlay.setPosition(pos,me._marker.getIcon().size);var index=me._troughPointIndex(pos);if(index!=-1){clearInterval(me._intervalFlag);me._overlay.setHtml(me._opts.landmarkPois[index].html);me._overlay.setPosition(pos,me._marker.getIcon().size);me._pauseForView(index)}else{me._overlay.setHtml(me._opts.defaultContent)}},_pauseForView:function(index){var me=this;var t=setTimeout(function(){me._moveNext(++me.i)},me._opts.landmarkPois[index].pauseTime*1000);me._setTimeoutQuene.push(t)},_clearTimeout:function(){for(var i in this._setTimeoutQuene){clearTimeout(this._setTimeoutQuene[i])}this._setTimeoutQuene.length=0},_tween:{linear:function(initPos,targetPos,currentCount,count){var b=initPos;var c=targetPos-initPos;var t=currentCount;var d=count;return c*t/d+b}},_troughPointIndex:function(markerPoi){var t=this._opts.landmarkPois;var distance;for(var i=0,len=t.length;i<len;i++){if(!t[i].bShow){distance=this._map.getDistance(new BMapGL.Point(t[i].lng,t[i].lat),markerPoi);if(distance<10){t[i].bShow=true;return i}}}return -1}});function getGeodesicPath(points){var gPath=[];for(var i=0;i<points.length-1;i++){var great=calcGreatCirclePath(points[i],points[i+1]);gPath=gPath.concat(great)}gPath=gPath.concat(points[points.length-1]);return gPath}function calcGreatCirclePath(latLng1,latLng2){if(latLng1.equals(latLng2)){return[latLng1]}var distance=BMapGL.Projection.getDistance(toRadian(latLng1.lng),toRadian(latLng1.lat),toRadian(latLng2.lng),toRadian(latLng2.lat));var distance=BMapGL.Projection.getDistanceByLL(latLng1,latLng2);if(distance<250000){return[latLng1]}var result=[];var count=Math.round(distance/150000);var angularDistance=calcAngularDistance(latLng1,latLng2);result.push(latLng1);for(var i=0;i<count;i++){var eachLatLng=calcMiddlePoint(latLng1,latLng2,i/count,angularDistance);result.push(eachLatLng)}result.push(latLng2);return result}function calcMiddlePoint(latLng1,latLng2,f,delta){var lat1=latLng1.lat;var lat2=latLng2.lat;
| var lon1=latLng1.lng;var lon2=latLng2.lng;var phi1=toRadian(lat1);var phi2=toRadian(lat2);var lambda1=toRadian(lon1);var lambda2=toRadian(lon2);var a=Math.sin((1-f)*delta)/Math.sin(delta);var b=Math.sin(f*delta)/Math.sin(delta);var x=a*Math.cos(phi1)*Math.cos(lambda1)+b*Math.cos(phi2)*Math.cos(lambda2);var y=a*Math.cos(phi1)*Math.sin(lambda1)+b*Math.cos(phi2)*Math.sin(lambda2);var z=a*Math.sin(phi1)+b*Math.sin(phi2);var phi=Math.atan2(z,Math.sqrt(Math.pow(x,2)+Math.pow(y,2)));var lambda=Math.atan2(y,x);return new BMapGL.Point(toAngle(lambda),toAngle(phi))}function toRadian(angle){return angle*Math.PI/180}function toAngle(radian){return radian/Math.PI*180}function calcAngularDistance(latLng1,latLng2){var lat1=toRadian(latLng1.lat);var lat2=toRadian(latLng2.lat);var lng1=toRadian(latLng1.lng);var lng2=toRadian(latLng2.lng);return Math.acos(Math.sin(lat1)*Math.sin(lat2)+Math.cos(lat1)*Math.cos(lat2)*Math.cos(Math.abs(lng2-lng1)))}function CustomOverlay(point,html){this._point=point;this._html=html}CustomOverlay.prototype=new BMapGL.Overlay();CustomOverlay.prototype.initialize=function(map){var div=this._div=baidu.dom.create("div",{style:"border:solid 1px #ccc;width:auto;min-width:50px;text-align:center;position:absolute;background:#fff;color:#000;font-size:12px;border-radius: 10px;padding:5px;white-space: nowrap;"});div.innerHTML=this._html;map.getPanes().floatPane.appendChild(div);this._map=map};CustomOverlay.prototype.draw=function(){this.setPosition(this.lushuMain._marker.getPosition(),this.lushuMain._marker.getIcon().size)};baidu.object.extend(CustomOverlay.prototype,{setPosition:function(poi,markerSize){var px=this._map.pointToOverlayPixel(poi);var styleW=baidu.dom.getStyle(this._div,"width");var styleH=baidu.dom.getStyle(this._div,"height");var overlayW=parseInt(this._div.clientWidth||styleW,10);var overlayH=parseInt(this._div.clientHeight||styleH,10);this._div.style.left=px.x-overlayW/2+"px";this._div.style.bottom=-(px.y-markerSize.height)+"px"},setHtml:function(html){this._div.innerHTML=html},setRelatedClass:function(lushuMain){this.lushuMain=lushuMain}})})();
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