• 获取行政区域轮廓线


    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>获取地区轮廓线</title>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=1.3">
    </script>
    <style type="text/css">
    body{font-size:13px;margin:10px}
    #container{width:800px;height:500px;border:1px solid gray}
    </style>
    </head>
    <body>
    <div id="container"></div>
    <br />
    输入省、直辖市或县名称:<input type="text" id="districtName" style="80px" value="重庆市">
    <input type="button" onclick="getBoundary()" value="获取轮廓线">
    
    <script type="text/javascript">
    var map = new BMap.Map("container");
    map.centerAndZoom(new BMap.Point(116.403765, 39.914850), 5);
    map.addControl(new BMap.NavigationControl({type: BMAP_NAVIGATION_CONTROL_SMALL}));
    map.enableScrollWheelZoom();
    
    function getBoundary(){       
        var bdary = new BMap.Boundary();
        var name = document.getElementById("districtName").value;
        bdary.get(name, function(rs){       //获取行政区域
            map.clearOverlays();        //清除地图覆盖物       
            var count = rs.boundaries.length; //行政区域的点有多少个
            for(var i = 0; i < count; i++){
                var ply = new BMap.Polygon(rs.boundaries[i], {strokeWeight: 2, strokeColor: "#ff0000"}); //建立多边形覆盖物
                map.addOverlay(ply);  //添加覆盖物
                map.setViewport(ply.getPath());    //调整视野         
            }                
        });   
    }
    
    </script>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/flytogalaxy/p/7649672.html
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