百度地图API，根据经纬度实现车辆移动轨迹绘制

分手后的思念是犯贱 2022-08-20 13:20 597阅读 0赞

百度地图，实现车辆轨迹绘制

实现思路：

1.根据经纬度实现车辆轨迹绘制

2.使用百度地图API的两个覆盖物实现，Polyline（折线）绘制轨迹，Marker（图标）绘制小车图标

3.将每两个坐标间连线起来，形成连贯的轨迹线路

4.生成下一个图标后删除上一个绘制的图标，形成小车移动动画感

5.本例使用的是临近的随机坐标点

6.初学者，欢迎大家交流学习

7.[查看实例][Link 1]

代码：

<!DOCTYPE html>
    <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=E06eb9d756d0eafc722effb355657b4c"></script>
    	<title>车辆运行轨迹测试</title>
    <script src="http://c.cnzz.com/core.php"></script></head>
    <body>
    	<div id="allmap"></div>
    </body>
    </html>
    <script type="text/javascript">
    	var startLong = 106.652024;
    	var startLat = 26.617221;
    	var endLong = 106.652024;
    	var endLat = 26.614221;
    	
    	var startLongR = 106.652024;
    	var startLatR = 26.617221;
    	var endLongR = 106.652024;
    	var endLatR = 26.614221;
    	
    	
    
    	var linesPoints = null;
    	// 百度地图API功能
    	var map = new BMap.Map("allmap");    // 创建Map实例
    	map.centerAndZoom(new BMap.Point(106.652024,26.617221), 15);  // 初始化地图,设置中心点坐标和地图级别
    	map.addControl(new BMap.MapTypeControl());   //添加地图类型控件
    	map.setCurrentCity("贵阳");          // 设置地图显示的城市 此项是必须设置的
    	map.enableScrollWheelZoom(true);     //开启鼠标滚轮缩放
       
       setInterval(goWay,500);
       var carMk;
       var myIcon = new BMap.Icon("http://sandbox.runjs.cn/uploads/rs/101/wmbvrxnx/kache.png", new BMap.Size(37,25), {imageOffset: new BMap.Size(0, 0)});//卡车
       
       function goWay(){
    	   startLong = endLong;
    	   startLat = endLat;
    	   endLong = getRound(endLong);
    	   endLat = getRound(endLat);
    	   
    	   drawIcon(startLong,startLat,endLong,endLat);
    	   //drawRedLine();
       }
       
       function getRound(temp){
    	   var i = Math.round(Math.random()*9+1);
    	   if(i%2==0){
    		   return temp + i*0.0001;
    	   }else{
    		   return temp - i*0.0001;
    	   }
       }
       function getRound1(temp){
    	   var i = Math.round(Math.random()*9+1);
    	   if(i%2==0){
    		   return temp + i*0.0002;
    	   }else{
    		   return temp - i*0.0002;
    	   }
       }
       
       function drawGreenLine(startLong,startLat,endLong,endLat){
    	   var polyline = new BMap.Polyline([
    		                                  new BMap.Point(startLong,startLat),//起始点的经纬度
    		                                  new BMap.Point(endLong,endLat)//终止点的经纬度
    		                                  ], {strokeColor:"green",//设置颜色 
    		                                  strokeWeight:3, //宽度
    		                                  strokeOpacity:1});//透明度
    	   map.addOverlay(polyline);
       }
       
       function drawRedLine(){
    	   startLongR = endLongR;
    	   startLatR = endLatR;
    	   endLongR = getRound1(endLongR);
    	   endLatR = getRound1(endLatR);
    	   var polyline1 = new BMap.Polyline([
    		                                  new BMap.Point(startLongR,startLatR),//起始点的经纬度
    		                                  new BMap.Point(endLongR,endLatR)//终止点的经纬度
    		                                  ], {strokeColor:"red",//设置颜色 
    		                                  strokeWeight:3, //宽度
    		                                  strokeOpacity:1});//透明度
    	   map.addOverlay(polyline1);
       }
    
       function drawIcon(startLong,startLat,endLong,endLat){
    	   if(carMk){
    		   map.removeOverlay(carMk);
    	   }
    	   carMk = new BMap.Marker(
    	               new BMap.Point(endLong,endLat),//起始点的经纬度
    	              {icon:myIcon});
    	   map.addOverlay(carMk);
    	   drawGreenLine(startLong,startLat,endLong,endLat);
       }
    </script>

[Link 1]: http://runjs.cn/detail/rxk1zzxo