百度地图——判断用户是否在配送范围内解决方案

判断用户是否在配送范围内

<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>百度地图——判断用户是否在配送范围内解决方案</title>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=1.2"></script>
    <script type="text/javascript" src="http://api.map.baidu.com/library/GeoUtils/1.2/src/GeoUtils_min.js"></script>
    <style type="text/css">
    table {
        font-size: 14px;
    }
    </style>
</head>

<body>
    <div style="float:left;width:600px;height:500px;border:1px solid gray" id="container"></div>
    <div style="float:left;width:300px;height:500px;border:1px solid gray" id="control">
        <table style="width:100%;">
            <tr>
                <td colspan="2">判断是否在配送区域内:</td>
            </tr>
            <tr>
                <td><input type="button" value="多边形1" onclick="polygon1()" /></td>
            </tr>
            <tr>
                <td><input type="button" value="多边形2" onclick="polygon2()" /></td>
            </tr>
            <tr>
                <td>经度<input type="text" value="" id="lng"></td>
            </tr>
            <tr>
                <td>纬度<input type="text" value="" id="lat"></td>
            </tr>
            <tr>
                <td>结果：</td>
            </tr>
            <tr>
                <td><p id="result" style="color:red"></p></td>
            </tr>
        <table>
    </div>
</body>

</html>
<script type="text/javascript">
    var map = new BMap.Map("container");
    var pt = new BMap.Point(116.404, 39.915);
    var mkr = new BMap.Marker(pt);
    var ply;  //多边形
    map.centerAndZoom(pt, 16);
    map.enableScrollWheelZoom(); //开启滚动缩放
    map.enableContinuousZoom(); //开启缩放平滑

    //初始化为多边形1
    polygon1();

    //生成多边形1
    function polygon1() {
        var pts = [];
        var pt1 = new BMap.Point(116.395, 39.910);
        var pt2 = new BMap.Point(116.394, 39.914);
        var pt3 = new BMap.Point(116.403, 39.920);
        var pt4 = new BMap.Point(116.402, 39.914);
        var pt5 = new BMap.Point(116.410, 39.913);
        pts.push(pt1);
        pts.push(pt2);
        pts.push(pt3);
        pts.push(pt4);
        pts.push(pt5);
        ply = new BMap.Polygon(pts);

        //演示：将面添加到地图上
        map.clearOverlays();
        map.addOverlay(ply);
    }

    //生成多边形2
    function polygon2() {
        var pts = [];
        var pt1 = new BMap.Point(116.395, 39.910);
        var pt2 = new BMap.Point(116.394, 39.914);
        var pt3 = new BMap.Point(116.396, 39.919);
        var pt4 = new BMap.Point(116.406, 39.920);
        var pt5 = new BMap.Point(116.410, 39.913);
        pts.push(pt1);
        pts.push(pt2);
        pts.push(pt3);
        pts.push(pt4);
        pts.push(pt5);
        ply = new BMap.Polygon(pts);

        //演示：将多边形添加到地图上
        map.clearOverlays();
        map.addOverlay(ply);
    }

    map.addEventListener("click", function (e) {
        mkr.setPosition(e.point);
        map.addOverlay(mkr);
        //将点击的点的坐标显示在页面上
        document.getElementById("lng").value = e.point.lng;
        document.getElementById("lat").value = e.point.lat;

        InOrOutPolygon(e.point.lng, e.point.lat);
    });

    function InOrOutPolygon(lng, lat){
        var pt = new BMap.Point(lng, lat);
        var result = BMapLib.GeoUtils.isPointInPolygon(pt, ply);
        if (result == true) {
            document.getElementById("result").innerHTML = "在配送区域内";
        } else {
            document.getElementById("result").innerHTML = "在配送区域外";
        }
    }

</script>
运行上面示例查看效果!
百度地图——判断用户是否在配送范围内解决方案

判断用户是否在配送范围内

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