高德地图 JS API示例->公交路线规划->规划结果 + 公交路线绘制

<!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>根据规划数据绘制公交路线</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=1.4.15&key=您申请的key值&plugin=AMap.Transfer"></script>
    <script src="https://a.amap.com/jsapi_demos/static/demo-center/js/demoutils.js"></script>
</head>
<body>
<div id="container"></div>
<div id="panel"></div>
<script type="text/javascript">
    var map = new AMap.Map("container", {
        center: [116.397559, 39.89621],
        zoom: 14
    });

    var transferOption = {
        city: '北京市',
        nightflag: true, // 是否计算夜班车
        policy: AMap.TransferPolicy.LEAST_TIME, // 其它policy取值请参照 https://lbs.amap.com/api/javascript-api/reference/route-search#m_TransferPolicy
    }

    var transfer = new AMap.Transfer(transferOption)

    //根据起、终点坐标查询公交换乘路线
    transfer.search(new AMap.LngLat(116.291035,39.907899), new AMap.LngLat(116.427281, 39.903719), function(status, result) {
        // result即是对应的公交路线数据信息，相关数据结构文档请参考  https://lbs.amap.com/api/javascript-api/reference/route-search#m_TransferResult
        if (status === 'complete') {
            if (result.plans && result.plans.length) {
                log.success('绘制公交路线完成')
                drawRoute(result.plans[0])
            }

        } else {
            log.error('公交路线数据查询失败' + result)
        }
    });

    function drawRoute (route) {
        var startMarker = new AMap.Marker({
            position: route.segments[0].transit.origin,
            icon: 'https://webapi.amap.com/theme/v1.3/markers/n/start.png',
            map: map
        })

        var endMarker = new AMap.Marker({
            position: route.segments[route.segments.length - 1].transit.destination,
            icon: 'https://webapi.amap.com/theme/v1.3/markers/n/end.png',
            map: map
        })

        var routeLines = []

        for (var i = 0, l = route.segments.length; i < l; i++) {
            var segment = route.segments[i]
            var line = null

            // 绘制步行路线
            if (segment.transit_mode === 'WALK') {
                line = new AMap.Polyline({
                    path: segment.transit.path,
                    isOutline: true,
                    outlineColor: '#ffeeee',
                    borderWeight: 2,
                    strokeWeight: 5,
                    strokeColor: 'grey',
                    lineJoin: 'round',
                    strokeStyle: 'dashed'
                })         

                
                line.setMap(map)
                routeLines.push(line)
            } else if (segment.transit_mode === 'SUBWAY' || segment.transit_mode === 'BUS') {
                line = new AMap.Polyline({
                    path: segment.transit.path,
                    isOutline: true,
                    outlineColor: '#ffeeee',
                    borderWeight: 2,
                    strokeWeight: 5,
                    strokeColor: '#0091ff',
                    lineJoin: 'round',
                    strokeStyle: 'solid'
                })                

                line.setMap(map)
                routeLines.push(line)
            } else {
                // 其它transit_mode的情况如RAILWAY、TAXI等，该示例中不做处理
            }
        }

        // 调整视野达到最佳显示区域
        map.setFitView([ startMarker, endMarker ].concat(routeLines))
    }

</script>
</body>
</html>
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