如何获取行政区域的边界gps数据
来源：互联网 发布：md204lv4编程软件下载 编辑：程序博客网 时间：2024/05/01 10:56
使用如下源码用IE打开，即可
<!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="width: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 //输出到本地 var fso = new ActiveXObject("Scripting.FileSystemObject"); var f = fso.CreateTextFile(name+".txt", true); f.write(rs.boundaries); 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>
