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="/jsapi_demos/static/demo-center/css/demo-center.css"/><script src="/maps?v=1.4.10&key=d799a2887868628bf7782fcd6b2c0ed1&plugin=AMap.PolyEditor"></script><script src="/maps?v=1.4.10&key=d799a2887868628bf7782fcd6b2c0ed1&plugin=AMap.Walking"></script><script src="/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 /api/javascript-api/reference/route-search#m_WalkingResultif (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: '/theme/v1.3/markers/n/start.png',map: map})var endMarker = new AMap.Marker({position: path[path.length - 1],icon: '/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 /api/javascript-api/reference/route-search#m_WalkRoutefunction 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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