高德 通过 起 经 止 经纬度 获取路线经纬度，（可搜索位置，新增经过点）_高德地图如何获取起点和终点的轨迹图的轨迹坐标点列表

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前言

之前工作的公司与道路相关，后端同事经常需要采集路线坐标，网上又没有找到合适的工具，因此请我帮忙写了一个可以根据起始点，经过点，终点，经纬度获取整条路线经纬度数组的一个功能，下面就演示获取经纬度的代码以及DEMO。

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一、经纬度获取代码

代码使用Vue + elementUI 布局，Amap.js 绘制地图、路线，以及获取路线经纬度。

html

<script src="https://webapi.amap.com/maps?v=2.0Beta&key=523c9fc07c690089f319101a72c2c13e&plugin=AMap.DragRoute,AMap.PlaceSearch"></script>

<div id="app">
  <div class="coordinate-acquisition-wraper" v-loading="isLoading">
    <div class="filter-wrap" :class="{expand: isExpand}">
      <i class="el-icon" :class="isExpand ? 'el-icon-arrow-left':'el-icon-arrow-right'" @click="isExpand = !isExpand"></i>
      <el-form class="custom-scrollbar" :model="formData" ref="form" size="small" label-width="100">
        <el-form-item label="选择定位位置">
          <el-input type="text" v-model="formData.keyword" @keyup.native.enter="posSearchHandle" placeholder="请输入位置" clearable="clearable" @clear="clearHandle"></el-input>
          <el-button icon="el-icon-search" type="primary" @click="posSearchHandle"></el-button>
        </el-form-item>
        <el-form-item :label="`经纬度${i+1}`" v-for="(item, i) in formData.coordinates" :key="i" :rules="rules.coordinate" :prop="`coordinates.${i}`">
          <el-input type="text" v-model="formData.coordinates[i]" icon="md-navigate" placeholder="请输入经纬度" :class="{active: active === i}"><i class="el-input__icon el-icon-s-promotion" slot="suffix" @click="activeHandle(i)"></i></el-input>
          <el-button icon="el-icon-close" type="danger" v-if="formData.coordinates.length &gt; 2" @click="removePointHandle(i)"></el-button>
          <el-button icon="el-icon-plus" type="primary" v-if="formData.coordinates.length &lt; 15" @click="formData.coordinates.splice(i + 1, 0, ''); active = i+1"></el-button>
        </el-form-item>
        <el-button type="primary" @click="renderLine">查询路线</el-button>
        <el-form-item label="经纬度段坐标">
          <el-input type="textarea" v-model="sectionStr" readonly="readonly" :rows="2"></el-input>
        </el-form-item>
        <el-form-item label="返回路线坐标">
          <el-input type="textarea" v-model="formData.result" readonly="readonly" :rows="3"></el-input>
        </el-form-item>
        <p>可在控制台查看完整路线对象</p>
      </el-form>
    </div>
    <div class="style-change">
      <span>地图主题：</span>
      <el-select v-model="formData.style" @change="setMapStyle">
        <el-option v-for="(item, i) in styleOptions" :label="item.label" :value="item.value"></el-option>
      </el-select>
    </div>
    <div class="search-result custom-scrollbar" id="search-result" ref="searchResult"></div>
    <div class="coordinate-acquisition" id="coordinate-acquisition" :class="{active: active !== -1}"></div>
  </div>
</div>
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JavaScript

new Vue({
  el: '#app',
  name: 'CoordinateAcquisition',
  data() {
    return {
      isExpand: true,
      isLoading: false,
      formData: {
        keyword: '',
        coordinates: ['116.303843,39.983412', '116.407012,39.992093'],
        start: '116.303843,39.983412',
        end: '116.407012,39.992093',
        result: '',
        style: 'light',
      },
      styleOptions: [
        {
          label: '幻影黑',
          value: 'dark',
        },
        {
          label: '月光银',
          value: 'light',
        },
        {
          label: '远山黛',
          value: 'whitesmoke',
        },
        {
          label: '草色青',
          value: 'fresh',
        },
        {
          label: '雅士灰',
          value: 'grey',
        },
        {
          label: '涂鸦',
          value: 'graffiti',
        },
        {
          label: '马卡龙',
          value: 'macaron',
        },
        {
          label: '靛青蓝',
          value: 'blue',
        },
        {
          label: '极夜蓝',
          value: 'darkblue',
        },
        {
          label: '酱籽',
          value: 'wine',
        },
      ],
      aMap: null,
      route: null,
      placeSearch: null,
      active: -1,
      rules: {
        coordinate: [
          {
            required: true,
            message: '请输入经纬度',
          },
        ],
      },
      timer: null,
    }
  },
  computed: {
    sectionStr() {
      return JSON.stringify(this.formData.coordinates.map((item) => item.split(',').map((v) => +v)))
    },
  },
  mounted() {
    setTimeout(() => {
        this.initMap()
    }, 1000)
  },
  methods: {
    clearHandle() {
      this.$refs.searchResult.innerHTML = ''
    },
    posSearchHandle() {
      // 关键字查询
      this.formData.keyword && this.placeSearch.search(this.formData.keyword)
    },
    setMapStyle() {
      let styleName = 'amap://styles/' + this.formData.style
      this.aMap.setMapStyle(styleName)

      // this.aMap.setZoom(13)
    },
    activeHandle(i) {
      if (this.active === i) {
        this.active = -1
      } else {
        this.active = i
      }
    },
    removePointHandle(i) {
      // clearTimeout(this.timer)
      this.formData.coordinates.splice(i, 1)

      // this.timer = setTimeout(() => {
      //   this.renderLine()
      // }, 300)
    },
    initMap() {
    //   AMapLoader.load({
    //     key: '523c9fc07c690089f319101a72c2c13e',
    //     version: '2.0Beta',
    //     // 'key': '	523c9fc07c690089f319101a72c2c13e', // 申请好的Web端开发者Key，首次调用 load 时必填
    //     // 'version': '2.0Beta' // 指定要加载的 JSAPI 的版本，缺省时默认为 1.4.15
    //     plugins: ['AMap.DragRoute', 'AMap.PlaceSearch'], // 需要使用的的插件列表，如比例尺'AMap.Scale'等
    //     // 'AMapUI': { // 是否加载 AMapUI，缺省不加载
    //     //   'version': '1.1', // AMapUI 缺省 1.1
    //     //   'plugins': [] // 需要加载的 AMapUI ui插件
    //     // },
    //     // 'Loca': { // 是否加载 Loca， 缺省不加载
    //     //   'version': '1.3.2' // Loca 版本，缺省 1.3.2
    //     // }
    //   })
    //     .then((AMap) => {
          this.aMap = new window.AMap.Map('coordinate-acquisition', {
            zoom: 5,
            mapStyle: `amap://styles/${this.formData.style}`,
          })

          // 构造地点查询类
          this.placeSearch = new window.AMap.PlaceSearch({
            pageSize: 5, // 单页显示结果条数
            pageIndex: 1, // 页码
            // city: '010', // 兴趣点城市
            // citylimit: true, // 是否强制限制在设置的城市内搜索
            map: this.aMap, // 展现结果的地图实例
            panel: 'search-result', // 结果列表将在此容器中进行展示。
            autoFitView: true, // 是否自动调整地图视野使绘制的 Marker点都处于视口的可见范围
          })

          this.placeSearch.on('markerClick', () => {
            this.aMap.setZoom(15)
          })

          this.aMap.on('click', (e) => {
            if (this.active !== -1) {
              this.$set(this.formData.coordinates, this.active, `${e.lnglat.lng},${e.lnglat.lat}`)
              // this.$nextTick(() => {
              //   this.renderLine()
              // })
            }
          })
        // })
        // .catch((e) => {
        //   console.log(e)
        // })
    },
    renderLine() {
      this.$refs.form.validate((valid) => {
        if (valid) {
          this.isLoading = true
          if (this.route) {
            this.route.destroy()
          }
          // path 是驾车导航的起、途径和终点，最多支持16个途经点
          let path = this.formData.coordinates.map((v) => v.split(','))
          // let path = []

          // path.push(this.formData.start.split(','))
          // path.push([116.321354, 39.896436])
          // path.push(this.formData.end.split(','))

          this.route = new window.AMap.DragRoute(this.aMap, path, window.AMap.DrivingPolicy.LEAST_DISTANCE)
          // 查询导航路径并开启拖拽导航
          this.route.search()

          this.route.on('complete', ({ data, target }) => {
            this.isLoading = false
            this.active = -1
            this.formData.coordinates = target._path.map((v) => `${v.lng},${v.lat}`)

            let arr = this.route.getRoute()
            let posArr = arr.map((item) => [item.lat, item.lng])
            this.formData.result = JSON.stringify(posArr)

            // this.$Message.success('可在控制台查看完整路线对象')
            let css = 'font-size: 20px; font-weight: bold;font-family: 微软雅黑; color: #fff; text-shadow: 0 0 3px rgba(0, 0, 0, 1);'
            console.clear()
            console.log('%c行车路线对象  ↓', css)
            console.log(data)
            console.log('%c行车路线数组  ↓', css)
            console.log(arr)
            console.log('%c行车路线经纬度  ↓', css)
            console.log(posArr)
            console.log('%c行车路线经纬度JSON串  ↓', css)
            console.log(this.formData.result)
          })

          this.route.on('addway', ({ target }) => {
            this.active = -1
            this.formData.coordinates = target._path.map((v) => `${v.lng},${v.lat}`)
          })
        }
      })
    },
  },
})
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CSS

#app,
body,
html {
  height: 100%;
  padding: 0;
  margin: 0;
}
.coordinate-acquisition-wraper {
  height: 100%;
  position: relative;
  font-family: "微软雅黑";
}
.coordinate-acquisition-wraper .style-change span {
  font-size: 14px;
  font-weight: bold;
  font-family: "微软雅黑";
}
.coordinate-acquisition-wraper .filter-wrap {
  border-right: 1px solid #ddd;
  position: absolute;
  z-index: 7;
  height: 100%;
  background-color: #fff;
  transition: left 0.3s;
  padding: 10px 0 10px 10px;
  width: 397px;
  box-sizing: border-box;
  left: -397px;
}
.coordinate-acquisition-wraper .filter-wrap.expand {
  left: 0;
}
.coordinate-acquisition-wraper .filter-wrap > .el-icon {
  cursor: pointer;
  font-size: 18px;
  position: absolute;
  right: -17px;
  height: 60px;
  line-height: 60px;
  width: 16px;
  box-shadow: 1px 1px 2px rgba(0,0,0,0.1);
  top: calc(50% - 30px);
  background-color: #fff;
  border-radius: 0 5px 5px 0;
}
.coordinate-acquisition-wraper .el-form {
  height: 100%;
  overflow: auto;
}
.coordinate-acquisition-wraper .el-form p {
  color: #888;
  text-shadow: 0 0 1px #fff;
  padding-left: 100px;
}
.coordinate-acquisition-wraper .el-form > .el-button {
  display: block;
  margin-left: 212px;
  margin-bottom: 10px;
}
.coordinate-acquisition-wraper .el-form .el-form-item {
  margin-bottom: 20px;
  padding-right: 10px;
}
.coordinate-acquisition-wraper .el-form .el-form-item .el-input.active .el-icon-s-promotion {
  color: #409eff;
}
.coordinate-acquisition-wraper .el-form .el-form-item .el-icon-s-promotion {
  cursor: pointer;
}
.coordinate-acquisition-wraper .el-form .el-form-item .el-form-item-error-tip {
  position: static;
}
.coordinate-acquisition-wraper .el-form .el-form-item .el-form-item__content {
  display: flex;
}
.coordinate-acquisition-wraper .el-form .el-form-item .el-button {
  margin-left: 3px;
}
.coordinate-acquisition-wraper .coordinate-acquisition {
  height: 100%;
}
.coordinate-acquisition-wraper .coordinate-acquisition.active .amap-layer {
  cursor: crosshair !important;
}
.coordinate-acquisition-wraper .coordinate-acquisition .amap-copyright,
.coordinate-acquisition-wraper .coordinate-acquisition .amap-logo {
  display: none !important;
}
.coordinate-acquisition-wraper .style-change {
  position: absolute;
  z-index: 7;
  right: 10px;
  top: 10px;
}
.coordinate-acquisition-wraper .style-change .el-select {
  width: 120px;
}
.coordinate-acquisition-wraper .search-result {
  position: absolute;
  z-index: 7;
  top: 50px;
  right: 10px;
  max-height: calc(100% - 70px);
  overflow: auto;
}

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二、效果图演示

功能描述
1.可以通过输入选择定位位置搜索需要查询的地方
2.选择 飞机图标变蓝后可以点击地图 自动插入点击处经纬度
3.可以新增 经过点 经纬度（通过+加号，或地图上路线点击拖拽）
4.官方自带主题可以切换
5.点击查询路线，会根据以上所填经纬度查询经过经过所有经纬度的路线斌返回经过经纬度路线数组

三、DEMO 演示地址

根据起 、经、止 经纬度查询路线经纬度 演示demo
在demo 内可在线编辑代码

总结

以上信息如有疏漏或错误欢迎指正，谢谢。