转: http://www.cnblogs.com/guxingzhe/p/5297804.html
<!DOCTYPE
html>
<html>
<head>
<meta
http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta
name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style
type="text/css">
body,
html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;}
</style>
<script
type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=您的密钥"></script>
<script
type="text/javascript" src="http://developer.baidu.com/map/jsdemo/demo/convertor.js"></script>
<title>GPS转百度</title>
</head>
<body>
<div
id="allmap"></div>
<script
type="text/javascript">
//
百度地图API功能
//GPS坐标
var xx = 116.397428;
var yy = 39.90923;
var gpsPoint = new BMap.Point(xx,yy);
//地图初始化
var bm = new BMap.Map("allmap");
bm.centerAndZoom(gpsPoint,
15);
bm.addControl(new BMap.NavigationControl());
//添加谷歌marker和label
var markergps = new BMap.Marker(gpsPoint);
bm.addOverlay(markergps); //添加GPS标注
var labelgps = new BMap.Label("我是GPS标注哦",{offset:new BMap.Size(20,-10)});
markergps.setLabel(labelgps); //添加GPS标注
//坐标转换完之后的回调函数
translateCallback
= function (point){
var marker = new BMap.Marker(point);
bm.addOverlay(marker);
var label = new BMap.Label("我是百度标注哦",{offset:new BMap.Size(20,-10)});
marker.setLabel(label); //添加百度label
bm.setCenter(point);
alert(point.lng + "," + point.lat);
}
setTimeout(function(){
BMap.Convertor.translate(gpsPoint,0,translateCallback); //真实经纬度转成百度坐标
},
2000);
</script>
</body>
</html>