获取百度地图点击两点的路线规划信息和path

学习笔记 yekong 194℃
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>获取百度地图点击两点的路线规划信息</title>
    <script src="https://libs.baidu.com/jquery/2.1.1/jquery.min.js"></script>
    <script type="text/javascript" src="https://api.map.baidu.com/api?v=2.0&ak=vufHg1cfCvaezj4g2trgxs2bhs84vvEK"></script>
    <style>
        html,body{width:100%;height: 100%;padding: 0;margin: 0}
        .map{width:100%;height:100%;padding:0;margin:0}
    </style>
</head>
<body>
<div id="map" class="map"></div>
<div style="position:absolute;top:10px;left: 10px;">
    <table>
        <tr>
            <td><span>起点</span></td>
            <td><input type="text" id="sPoint"></td>
        </tr>
        <tr>
            <td><span>终点</span></td>
            <td><input type="text" id="ePoint"></td>
        </tr>
        <tr>
            <td ><input type="button" value="查询" id="btnSearch"> </td>
            <td ><input type="button" value="重置" id="btnReset"> </td>
        </tr>
        <tr>
            <td><span>时间</span></td>
            <td><input type="text" id="time" readonly style="width:50px"> | <input type="text" id="timeformate" readonly  style="width:50px"></td>
        </tr>
        <tr>
            <td><span>距离</span></td>
            <td><input type="text" id="distance" readonly  style="width:50px"> | <input type="text" id="distanceformate" readonly  style="width:50px"></td>
        </tr>
    </table>
    <hr/>
    <br/>
    <textarea id="result" rows="6" cols="4"></textarea>
</div>
</body>
</html>
<script>

    function creat(){
        // 创建Map实例
        map = new BMap.Map("map", { enableMapClick: false });
        var point = new BMap.Point(112.571757,37.798085);
        map.centerAndZoom(point, 9);
        map.enableScrollWheelZoom();
        if(typeof(mapClickHandler) === "function")
        {
            map.addEventListener("click", mapClickHandler);
        }
    }
    creat();
    var flag = true;
    function mapClickHandler(e){
        // 从经纬度得到地址
        var curPos = e.point.lng + "," + e.point.lat;
        if(flag){
            $("#sPoint").val(curPos);
            flag = false;
        }else{
            $("#ePoint").val(curPos);
            flag = true;
        }
    }

    $("#btnSearch").click(function(){
        var sp = $("#sPoint").val();
        var ep = $("#ePoint").val();
        if(sp && ep){
            /*/!*var sPoint = new BMap.Point(sp.split(",")[0],sp.split(",")[1]);
             var ePoint = new BMap.Point(ep.split(",")[0],ep.split(",")[1]);*!/*/
            pointPathSearch(sp.split(",")[0],sp.split(",")[1],
                ep.split(",")[0],ep.split(",")[1]);
        }
        //namePathSearch("天津","太原",1,array);
    });

    $("#btnReset").click(function(){
        var sp = $("#sPoint").val("");
        var ep = $("#ePoint").val("");
        flag = true;
        map.clearOverlays();
    });

    function onSearchCompleteYeWHandler(data){
        //data中包含搜索返回的一些数据
        if(data){
            $("#result").text(data.coors);
            $("#time").val(data.time);
            $("#timeformate").val(data.formattime);
            $("#distance").val(data.distance);
            $("#distanceformate").val(data.formatdistance);
        }
    }

    function pointPathSearch(slng,slat,elng,elat,policy,tujd){
        //确定查询的策略,百度现在只支持最短时间,最短路程,不走高速三种策略
        if(policy){
            if(policy === 1){
                policy = BMAP_DRIVING_POLICY_LEAST_TIME;
            }else if(polycy === 2){
                policy = BMAP_DRIVING_POLICY_LEAST_DISTANCE;
            }else if(polycy === 3){
                policy = BMAP_DRIVING_POLICY_AVOID_HIGHWAYS;
            }
        }else{
            policy = BMAP_DRIVING_POLICY_LEAST_TIME;
        }
        if(slng && slat && elng && elat){
            var pA = new BMap.Point(slng,slat);
            var pB = new BMap.Point(elng,elat);
            driving = new BMap.DrivingRoute(
                map,
                {renderOptions:{map: map, autoViewport: true},
                    onSearchComplete:onSearchCompleteHandler,
                    policy:policy
                });
            if(tujd && tujd.length>0){
                driving.search(pA, pB,{waypoints:tujd});
            }else{
                driving.search(pA, pB);
            }

        }
    }

    function onSearchCompleteHandler(result){
        //DrivingRouteResult
        //console.log(result.policy.length);
        var t = result.getPlan(0);
        var tt = t.getRoute(0).getPath();
        var result = "";
        $.each(tt,function(index,item){
            if(item){
                if(result === ""){
                    result += item.lng + "," + item.lat;
                }else{
                    result += ";" + item.lng + "," + item.lat;
                }
            }
        });
        var ob = new Object();
        ob.coors = result;
        ob.time = t.getDuration(false);
        ob.formattime = t.getDuration(true);
        ob.distance = t.getDistance(false);
        ob.formatdistance = t.getDistance(true);
        if(typeof onSearchCompleteYeWHandler === "function"){
            onSearchCompleteYeWHandler(ob);
        }
    }
</script>
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