利用百度地图API进行GPS坐标转换成百度地图坐标，创建点，标签，多边形
详情见
https://editor.csdn.net/md/?articleId=105620982
<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><meta name="viewport" content="initial-scale=1.0, user-scalable=no"/><style type="text/css"> body, html,#allmap {width:100%;height:100%;overflow: hidden;margin:0;font-family:"微软雅黑";}</style><script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=你自己百度api key"></script><title>百度地图</title></head><body><div id="allmap"></div></body></html><script type="text/javascript">// 百度地图API功能var map =newBMap.Map("allmap"); map.centerAndZoom("吉林",12); map.enableScrollWheelZoom(true);//开启鼠标滚轮缩放 //添加混合地图var mapType1 =newBMap.MapTypeControl({ mapTypes:[BMAP_NORMAL_MAP,BMAP_HYBRID_MAP], anchor:BMAP_ANCHOR_TOP_LEFT});var overView =newBMap.OverviewMapControl();var overViewOpen =newBMap.OverviewMapControl({isOpen:true, anchor:BMAP_ANCHOR_BOTTOM_RIGHT});//添加地图类型和缩略图 map.addControl(mapType1);//2D图，混合图 map.addControl(overView);//添加默认缩略地图控件 map.addControl(overViewOpen);//右下角，打开//添加城市列表var size =newBMap.Size(10,20); map.addControl(newBMap.CityListControl({ anchor:BMAP_ANCHOR_TOP_RIGHT, offset: size,// 切换城市之前事件// onChangeBefore: function(){// alert('before');// },// 切换城市之后事件// onChangeAfter:function(){// alert('after');// }}));//定义点var points1 =[newBMap.Point(126.559902,43.872105),newBMap.Point(126.56908145602,43.87305),newBMap.Point(126.55136,43.85723),newBMap.Point(126.566736,43.867276),//new BMap.Point(126.416781,43.998281),newBMap.Point(126.576647,43.861497),newBMap.Point(126.56513,43.85111),newBMap.Point(126.571492,43.837029),newBMap.Point(126.5484023,43.88186216),newBMap.Point(126.590386111111,43.839225),newBMap.Point(126.557552,43.883093),newBMap.Point(126.56193,43.8797),newBMap.Point(126.5765977,43.87548923)];//创建点和标签函数Create_points=function(points){// 添加点和标签for(var i =0; i < points.length; i++){translateCallback=function(data){if(data.status ===0){var marker =newBMap.Marker(data.points[0]); map.addOverlay(marker);var str1 ="转换后的百度坐标点";var str2 = i;var str3 = str1.concat(str2);var label =newBMap.Label(str3,{offset:newBMap.Size(0,0)}); marker.setLabel(label);//添加百度label//map.setCenter(data.points[0]);}}//经纬度转换功能var convertor =newBMap.Convertor();var pointArr =[]; pointArr.push(points[i]); convertor.translate(pointArr,1,5, translateCallback);}}//调用函数创建点和标签Create_points(points1);//创建多边形的点var Polygon_points =[newBMap.Point(126.559902,43.872105),newBMap.Point(126.55136,43.85723),newBMap.Point(126.416781,43.998281),newBMap.Point(126.5484023,43.88186216),newBMap.Point(126.56193,43.8797)]//创建多边形添加函数Create_Polygon=function(points){//创建多边形Polygon_translateCallback=function(data){if(data.status ===0){var polygon =newBMap.Polygon(data.points,{ strokeColor:"red",//线颜色 strokeWeight:2,//线宽度 strokeOpacity:1,//线透明度 fillColor:"blue",//填充颜色 fillOpacity:0.5,//填充透明度 enableClicking:true//是否相应点击，默认为true}); map.addOverlay(polygon);}}//多边形坐标转换var convertor =newBMap.Convertor(); convertor.translate(points,1,5, Polygon_translateCallback);}//调用创建多边形添加函数Create_Polygon(Polygon_points);//显示行政区functiongetBoundary(C_name){var bdary =newBMap.Boundary(); bdary.get(C_name,function(rs){//获取行政区域//map.clearOverlays(); //清除地图覆盖物 var count = rs.boundaries.length;//行政区域的点有多少个if(count ===0){alert('未能获取当前输入行政区域');return;}var pointArray =[];for(var i =0; i < count; i++){var ply =newBMap.Polygon(rs.boundaries[i],{strokeWeight:2, strokeColor:"#ff0000"});//建立多边形覆盖物 map.addOverlay(ply);//添加覆盖物 pointArray = pointArray.concat(ply.getPath());}//map.setViewport(pointArray); //根据对象调整视野 //addlabel(); });}//var names = ["昌邑区","龙潭区" ,"船营区" ,"丰满区" ,"永吉县" ,"蛟河市", "桦甸市", "舒兰市", "磐石市"]var names =["长春市","吉林市"]for(var i =0; i < names.length; i++){getBoundary(names[i]);}</script>