高德地图JS--批量规划步行路线 优化

调取高德地图JS API 进行步行路线规划

多个起点到达一个重点，根据搜素结果画路线，进行绘图，并为线路添加点击事件

效果如下：

代码如下：

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
    <style>
        html,
        body,
        #container {
            width: 100%;
            height: 100%;
        }
    </style>
    <title>根据规划数据绘制步行路线</title>
    <link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css"/>
    <script src="https://webapi.amap.com/maps?v=1.4.10&key=d799a2887868628bf7782fcd6b2c0ed1&plugin=AMap.PolyEditor"></script>
    <script src="https://webapi.amap.com/maps?v=1.4.10&key=d799a2887868628bf7782fcd6b2c0ed1&plugin=AMap.Walking"></script>
    <script src="https://a.amap.com/jsapi_demos/static/demo-center/js/demoutils.js"></script>
</head>
<body>
<div id="container"></div>
<script type="text/javascript">
  var map = new AMap.Map('container', {
    center: [116.397559, 39.89621],
    zoom: 14
  })

  // 当前示例的目标是展示如何根据规划结果绘制路线，因此walkOption为空对象
  var walkingOption = {}

  let dataArr = [
    [15, '汽车服务', 116.807599, 39.6462117, 1.459, 6.3265],
    [22, '汽车服务', 117.6136484, 39.7657742, 9.738, 7.5687],
    [30, '汽车服务', 117.2940413, 39.7878749, 7.7227, 6.5476],
    [37, '汽车服务', 116.0684453, 38.174566, 4.5352, 8.5357],
    [42, '汽车服务', 117.3493731, 38.6404797, 1.1438, 4.3265],
    [43, '汽车服务', 116.8465287, 38.363796, 8.7718, 4.4577]]
  let targetPoint = [116.944964, 39.457521]

  // 搜素路线的函数
  function searchRouter (startPointArr, endPoint) {
    for (let i = 0; i < startPointArr.length; i++) {
      let item = startPointArr[i]
      let startPoint = [item[2], item[3]]

      // 步行导航
      var walking = new AMap.Walking(walkingOption)

      //根据起终点坐标规划步行路线
      walking.search(startPoint, endPoint, function (status, result) {
        // result即是对应的步行路线数据信息，相关数据结构文档请参考  https://lbs.amap.com/api/javascript-api/reference/route-search#m_WalkingResult
        if (status === 'complete') {
          if (result.routes && result.routes.length) {
            drawRoute(result.routes[0], item)
            log.success('绘制步行路线完成')
          }
        } else {
          log.error('步行路线数据查询失败' + result)
        }
      })
    }
  }
  // 描绘路线的函数
  function drawRoute (route, item) {
    var path = parseRouteToPath(route)
    var startMarker = new AMap.Marker({
      position: path[0],
      icon: 'https://webapi.amap.com/theme/v1.3/markers/n/start.png',
      map: map
    })
    var endMarker = new AMap.Marker({
      position: path[path.length - 1],
      icon: 'https://webapi.amap.com/theme/v1.3/markers/n/end.png',
      map: map
    })
    var routeLine = new AMap.Polyline({
      path: path,
      isOutline: true,
      outlineColor: '#ffeeee',
      borderWeight: 2,
      strokeWeight: 5,
      cursor: 'pointer',
      strokeColor: '#0091ff',
      lineJoin: 'round',
      extData: item
    })
    routeLine.on('click', function (obj) {
      console.log(obj.target.getExtData())
      alert('您点击了线为' + obj.target.getExtData().toString())
    })
    routeLine.setMap(map)
    // 调整视野达到最佳显示区域
    map.setFitView([startMarker, endMarker, routeLine])
  }

  // 解析WalkRoute对象，构造成AMap.Polyline的path参数需要的格式
  // WalkRoute对象的结构文档 https://lbs.amap.com/api/javascript-api/reference/route-search#m_WalkRoute
  function parseRouteToPath (route) {
    var path = []

    for (var i = 0, l = route.steps.length; i < l; i++) {
      var step = route.steps[i]

      path.push([step.start_location.lng, step.start_location.lat])
      path.push([step.end_location.lng, step.end_location.lat])
    }

    return path
  }

  searchRouter(dataArr, targetPoint)
</script>
</body>
</html>

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