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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=你自己的百度地圖apikey"></script>
<script type="text/javascript" src="http://api.map.baidu.com/library/GeoUtils/1.2/src/GeoUtils_min.js"></script>
</head>
<body>
<div id="allmap" style="width:1000px;height:500px"></div>
<div id="divInfo"></div>
</body>
</html>
<script type="text/javascript">
window.onload = function () {
var map = new BMap.Map("allmap");
map.centerAndZoom(new BMap.Point(116.504996,31.723148), 7);
map.enableScrollWheelZoom();
var bdary = new BMap.Boundary();
bdary.get("六安市", function (rs) { //獲取行政區域
map.clearOverlays(); //清除地圖覆蓋物
var count = rs.boundaries.length; //行政區域的點有多少個
if (count === 0) {
alert('未能獲取當前輸入行政區域');
return;
}
var pointArray = [];
for (var i = 0; i < count; i++) {
var ply = new BMap.Polygon(rs.boundaries[i]); //建立多邊形覆蓋物
map.addOverlay(ply); //添加覆蓋物
pointArray = pointArray.concat(ply.getPath());
map.setViewport(pointArray);
var res = "", minX = 115.336768, minY = 30.802569, x = 0, y = 0,pt=null;
for (var i = 0; i < 1000; i++) {
x = minX + getRandom();
y = minY + getRandom();
pt = new BMap.Point(x, y);
if (BMapLib.GeoUtils.isPointInPolygon(pt, ply)) {
var marker = marker = new BMap.Marker(new BMap.Point(x, y));
map.addOverlay(marker);
//res += 'marker = new BMap.Marker(new BMap.Point(' + x + ' ,' + y + '));<br/>map.addOverlay(marker);<br/> ';
}
}
divInfo.innerHTML = res;
}
// map.setViewport(pointArray); //調整視野
//addlabel();
});
//document.getElementById("divInfo").innerHTML = Math.random()/4;
}
function getRandom() {
return Math.random() *2;
}
</script>
