map组件使用translateMarker移动图标实现车辆轨迹回放效果，基础库2.11.0。我一开始使用map的markers设置始点、终点和车辆（车辆初始位置包含了角度rotate

）的初始位置。

toPlay() {//进行播放----------------------
    let that = this;
    if (that.data.progress < that.data.dataList.length-1 && that.data.playStatus) {
      let index = ++that.data.progress;
      that.setData({
        progress: index,
        currentPlayCar: that.data.dataList[index]
      })
      let direction = that.data.dataList[index].direction - that.data.initDirection;//旋转角度要以初始化设置marker时的角度为基础
      console.log(that.data.markerId);
      console.log(that.data.dataList[index].direction, that.data.initDirection,direction);
      that.mapCtx.translateMarker({
        markerId: that.data.markerId,
        rotate: direction,
        duration: that.data.currentSpeed.value,
        autoRotate: true,
        destination: {
          latitude: that.data.dataList[index].blat,
          longitude: that.data.dataList[index].blng
        },
        complete: function (res) {
          if (that.data.playStatus){
            that.toPlay();
          }
        }
      });
    } else {
      that.toStop();
    }
  },
shortcutPlay(e) {//快速切换到某个播放点------------------
    let that = this;
    if (that.data.dataList.length) {
      if (that.data.playStatus){
        that.setData({
          progress: e.detail.value-1
        });
      }else{
        let index = e.detail.value;
        // that.data.initDirection = that.data.dataList[index].direction;
        that.data.markerId = new Date().getTime();
        let cars = {
          iconPath: "/resource/map-car5.png",
          id: that.data.markerId,
          latitude: that.data.dataList[index].blat,
          longitude: that.data.dataList[index].blng,
          rotate: that.data.dataList[index].direction,
          width: 20,
          height: 42,
          anchor: { x: .5, y: .5 }
        };
        that.data.markers.splice(2, 1, cars);
        that.setData({
          progress: index,
          markers: that.data.markers,
          currentPlayCar: that.data.dataList[index]
        });
      }
    }
  },
主逻辑是这样的。但是现在遇到了问题先调用shortcutPlay切换到某个点再调用toPlay的时候移动的方向就会出现偏差