+加入导航

liuyg

2022-01-08 638b3c635aaa47e5cae723466ca8a11df59877bf

 src/store/modules/mobile.js

@@ -1,4 +1,5 @@
import $store from "../index";
import axios from "axios";
const mobile = {
  state: {
    mviewer: null, // 地图实体类
@@ -51,6 +52,13 @@

    audioData: null, //语音
    audioState: false, //语音状态

    navigationStartLngLat: "", //导航起点
    navigationEndLngLat: "", //导航终点
    drawALineLayer: null, //导航路径图层
    isOpenDrawALine: false, //是否开启路径
    endPosition: "", //传送终点经纬度--
    isendPosition: false, //传送终点经纬度--感应数据
  },
  mutations: {
    MSET_VIEWER(state, viewer) {
@@ -221,6 +229,45 @@
      state.wallLayer = data.wallLayer;
      state.tileset = data.tileset;
      state.usetowpointfive = data.usetowpointfive;
    },
    //直接移动
    cameraSetView(state, data) {
      state.mviewer.camera.setView({
        // Cesium的坐标是以地心为原点，一向指向南美洲，一向指向亚洲，一向指向北极州
        // fromDegrees()方法，将经纬度和高程转换为世界坐标
        destination: new global.DC.Namespace.Cesium.Cartesian3.fromDegrees(
          // 114.0351,
          // 27.6314,
          // 200.0
          data[0] + 0.0,
          data[1] + 0.00028,
          data[2] || 300
        ),
        orientation: {
          heading: global.DC.Namespace.Cesium.Math.toRadians(
            state.dimensionData.heading
          ),
          pitch: global.DC.Namespace.Cesium.Math.toRadians(
            state.dimensionData.pitch
          ),
          // heading: data.heading,
          // pitch: data.pitch,
          roll: state.dimensionData.roll,
        },
      });
    },
    //删除路线
    removePolyline(state) {
      if (state.drawALineLayer) {
        state.drawALineLayer.remove();
        state.drawALineLayer = null;
        state.isOpenDrawALine = false;
      }
    },
    //传送终点数据
    set_endPosition(state, data) {
      state.isendPosition = !state.isendPosition;
      state.endPosition = data;
    },
  },
  actions: {
@@ -548,6 +595,7 @@
        },
      });
    },
    //文字转语音控制↓
    MSET_GETAUDIO({ state, commit, dispatch }, val) {
      state.audioData = new window.SpeechSynthesisUtterance();
      state.audioData.text = val;
@@ -568,6 +616,87 @@
        }
      }
    },
    //文字转语音控制↑
    //导航系统↓
    MSET_GOTOWHERE({ state, commit, dispatch }, val) {
      //本地图使用的是WGS84坐标，而高德使用的是火星坐标GCJ02，所以需要转换参数过去
      // 返回值需要转换为WGS84坐标
      state.navigationStartLngLat = [+val[0][0], +val[0][1]]; //导航起点
      state.navigationEndLngLat = [+val[1][0], +val[1][1]]; //导航终点
      //转换WGS84坐标为GCJ02
      let GCJ02StartLngLat = global.DC.CoordTransform.WGS84ToGCJ02(
        Number(state.navigationStartLngLat[0]),
        Number(state.navigationStartLngLat[1])
      );
      let GCJ02EndLngLat = global.DC.CoordTransform.WGS84ToGCJ02(
        Number(state.navigationEndLngLat[0]),
        Number(state.navigationEndLngLat[1])
      );
      // 获取路径，使用的是高德API
      axios
        .get("https://restapi.amap.com/v3/direction/walking", {
          params: {
            origin: `${Number(GCJ02StartLngLat[0]).toFixed(6)},${Number(
              GCJ02StartLngLat[1]
            ).toFixed(6)}`,
            destination: `${Number(GCJ02EndLngLat[0]).toFixed(6)},${Number(
              GCJ02EndLngLat[1]
            ).toFixed(6)}`,
            key: "4b3e1db3211054ce5b466407cbb9d221",
            output: "json",
          },
        })
        .then((res) => {
          //回调
          const paths = res.data.route.paths[0].steps;
          drawALine(paths);
        });

      let drawALine = (paths) => {
        //paths是个道路对象，其中polyline是String类型的经纬度
        let Str = state.navigationStartLngLat.join(",") + ";"; //加入起点
        for (let index = 0; index < paths.length; index++) {
          const path = paths[index];
          let polyline = path.polyline; //取到String类型的经纬度
          let polylineArr = polyline.split(";"); //转为数组
          let polylineArrLength = polylineArr.length; //获取长度，避免多次重复读取polylineArr.length
          for (let k = 0; k < polylineArrLength; k++) {
            let inPolylineArr = polylineArr[k].split(","); //转经纬度为单独的数组
            let outIn = global.DC.CoordTransform.GCJ02ToWGS84(
              //处理火星坐标转换成WGS84  GCJ02ToWGS84
              inPolylineArr[0],
              inPolylineArr[1]
            );
            polylineArr[k] = outIn.join(","); //每组经纬度转为String
          }
          polyline = polylineArr.join(";"); //合并转换后的经纬度合集

          Str += polyline; //自加
          Str += ";";
        }
        Str += state.navigationEndLngLat.join(","); //加入终点
        drawALineLayer(Str); //绘画线路
      };

      //绘画线路
      let drawALineLayer = (Str) => {
        //检查是否存在路线
        commit("removePolyline");
        let drawALineLayer = new global.DC.VectorLayer("layer");
        state.mviewer.addLayer(drawALineLayer);
        let polyline = new global.DC.Polyline(Str); //加入绘画点
        polyline.setStyle({
          width: 3,
          material: DC.Color.RED,
          clampToGround: true,
        });
        drawALineLayer.addOverlay(polyline);
        state.drawALineLayer = drawALineLayer;
        state.isOpenDrawALine = true;
        commit("cameraSetView", state.navigationStartLngLat); //移动
      };
    },
    //导航系统↑
  },
};