在地图上绘制路线图

zstar

发布于 2022-06-14 09:18:52

7640

发布于 2022-06-14 09:18:52

最近做个项目，官方给了车的一些经纬度数据，为了看的更清楚，需要把数据标注在地图上想到了两套方案，第一种采用python的folium库结果遇到问题，数据一多，绘画出来的速度很慢，而且它的某JS插件还有问题，可能要访问国外网站最后采用百度地图API+前端实现

实现代码

<!DOCTYPE html>  
<html>  
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
<title>运输轨迹图</title>  
<script type="text/javascript" src="http://api.map.baidu.com/api?v=1.2"></script>  
</head>  
<body>  
<div  style="width:1000px;height:800px;border:1px solid gray" id="container"></div>
  
<script type="text/javascript">  
    window.onload = function(){
    	var map = new BMap.Map("container");  
        map.centerAndZoom(new BMap.Point(108.847098,34.553311), 19);  
        map.addControl(new BMap.NavigationControl());               // 添加平移缩放控件  
        map.addControl(new BMap.ScaleControl());                    // 添加比例尺控件  
        map.addControl(new BMap.OverviewMapControl());              //添加缩略地图控件  

        map.clearOverlays();                        //清除地图上所有的覆盖物  
        var driving = new BMap.DrivingRoute(map);    //创建驾车实例  
    	// 坐标点数据
    	var pointArr = [
		{lng:108.846778,lat:34.553381},
            {lng:108.913278,lat:34.56822},
            {lng:108.965431,lat:35.067111},
            {lng:108.970378,lat:35.28905},
            {lng:109.062676,lat:35.459776},
            {lng:109.150031,lat:35.753583},
            {lng:109.162038,lat:36.13323},
            {lng:109.210436,lat:36.275681},
            {lng:109.530575,lat:36.374983},
            {lng:109.524826,lat:36.311185},
            {lng:109.48606,lat:36.065591},
            {lng:109.472351,lat:35.97982},
            {lng:109.416193,lat:35.785386},
            {lng:109.218855,lat:35.591348},
            {lng:109.00506,lat:35.229895},
            {lng:109.000183,lat:35.096543},
            {lng:108.948958,lat:35.043541},
            {lng:108.87274,lat:34.955763},
            {lng:108.918626,lat:34.829366},
            {lng:108.917861,lat:34.710648},
            {lng:108.906966,lat:34.557451},
            {lng:108.675451,lat:34.441986},
            {lng:109.111373,lat:35.530833},
            {lng:109.150411,lat:35.754528},
            {lng:109.42088,lat:35.831146},
            {lng:109.416193,lat:35.785386},
            {lng:109.23994,lat:35.651303},
            {lng:108.794355,lat:34.442668},
            {lng:108.804498,lat:34.492978},
            {lng:109.314386,lat:36.316936}];
		// 生成坐标点
		var trackPoint = [];
		for (var i = 0, j = pointArr.length; i < j; i++) {
			trackPoint.push(new BMap.Point(pointArr[i].lng, pointArr[i].lat));
		}


    	for (var i = 0; i < trackPoint.length; i++) {
        	if(i != trackPoint.length -1 ){
        		driving.search(trackPoint[i], trackPoint[i+1]);
           	}
    	}
        driving.setSearchCompleteCallback(function(){  
            var pts = driving.getResults().getPlan(0).getRoute(0).getPath();    //通过驾车实例，获得一系列点的数组  
      
            var polyline = new BMap.Polyline(pts);       
            map.addOverlay(polyline);  

        	// 画图标、想要展示的起点终点途经点
        	for (var i = 0; i < trackPoint.length; i++) {
        		var lab;
            	if(i == 0){
            		lab = new BMap.Label("起点",{position:trackPoint[i]});
                }else if(i == trackPoint.length - 1){
                	lab = new BMap.Label("终点",{position:trackPoint[i]});
                }else{
                	/* lab = new BMap.Label("途径点",{position:trackPoint[i]}) */
                }
        	    var marker = new BMap.Marker(trackPoint[i])
        	    map.addOverlay(marker);
        	    map.addOverlay(lab);
        	}
        	map.setViewport(trackPoint);  
        });  
    }
</script>  

</body>  
</html>  
</body>
</html>