获取百度地图中的县级以上行政区域的边界数据

程序员文章站 2022-07-03 18:11:45

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从网上所找的代码中并不能下载到边界数据，所以自己拼凑了一个

<!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;margin:auto auto;}  
#controler {text-align:center;margin-top:30px;}  
</style>  
</head>  
<body>  
<div id="container"></div>  
<div id="controler">  
输入省、直辖市或县名称：<input type="text" id="districtName" style="width:80px" value="合肥市">  
<input type="button" onclick="getBoundary()" value="获取轮廓线"></div>  
<textarea id="Div1" style="width:100%;height:200px"></textarea>
  
<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  
		document.getElementById('Div1').innerText = rs.boundaries;
        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>