GPS坐标批量转换为百度坐标并绘制轨迹路线

 var points = [];                           //要转换的点数组；
 var convertor = new BMap.Convertor();
 var translatePoint = [];                 //中转数组

 for (var j = 0; j < res.Data.length; j++)
 {
    var point = new BMap.Point(res.Data[j].Longitude, res.Data[j].Latitude); //你获取的GPS坐标
    points.push(point);
 };
                  
 for (var i = 0; i < points.length; i += 10)             //分组转换（百度坐标转换方法一次最多转10个坐标）
 {
    translatePoint.push(points.slice(i, i + 10));        //  从已有的数组中返回选定的元素,该方法并不会修改数组，而是返回一个子数组
 }

  for (var i = 0; i < translatePoint.length; i++)
  {
   (function (index) 
    {
       convertor.translate(translatePoint[index], 1, 5, function (data) {            //坐标转换
       if (data.status === 0) {
           var polyline = new BMap.Polyline(data.points, { strokeColor: "#18a45b", strokeWeight: 2, strokeOpacity: 0.5 });  //绘制轨迹
           map.addOverlay(polyline);
       }
      });
     })(i);
   }