轨迹纠偏 最后更新时间: 2024年02月26日

轨迹纠偏服务插件。用于将一组带方向的、可能偏离道路的经纬度轨迹，纠正为准确沿着道路的一条经纬度路径。比如将一组间隔采集的车辆位置和朝向、速度、时间等信息传入，可以得到一组沿着道路行进的经纬度路径和总的行驶历程。

驾车轨迹纠偏示例

使用说明

1、准备原始轨迹数据

纠偏之前需要按照下面的数据规格准备原始轨迹点，x、y、sp、ag、tm分别代表经度、纬度、速度、角度、时间。

 var originPath= [
   {"x":116.478928,"y":39.997761,"sp":19,"ag":0, "tm":1478031031},
   {"x":116.478907,"y":39.998422,"sp":10,"ag":0, "tm":2},
   {"x":116.479384,"y":39.998546,"sp":10,"ag":110,"tm":3},
   {"x":116.481053,"y":39.998204,"sp":10,"ag":120,"tm":4},
   {"x":116.481793,"y":39.997868,"sp":10,"ag":120,"tm":5},
   {"x":116.482898,"y":39.998217,"sp":10,"ag":30, "tm":6},
   {"x":116.483789,"y":39.999063,"sp":10,"ag":30, "tm":7},
   {"x":116.484674,"y":39.999844,"sp":10,"ag":30, "tm":8}
 ]

2、调用轨迹纠偏服务

推荐使用异步安装插件，插件引入方式 插件的使用。

AMap.plugin('AMap.GraspRoad',function(){
  var grasp = new AMap.GraspRoad();
  grasp.driving(originPath,function(error,result){
          if(!error){
            var newPath = result.data.points; //纠偏后的轨迹
            var distance = result.data.distance; //里程
          }
   })
})