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原始经纬度转百度地图定位并显示地理位置

2017-03-08 23:26 896 查看
手机GPS采集的原始经纬度数据往往不能直接在百度地图上显示,

以下代码将原始经纬度数据转成百度经纬度数据标准,并在网页上显示。

<!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;font-family:"微软雅黑";}
</style>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=您的密钥"></script>
<title>GPS转百度</title>
</head>
<body>
<div id="allmap"></div>
</body>
</html>
<script type="text/javascript">
// 百度地图API功能
//GPS坐标
var x = 116.32715863448607;
var y = 39.990912172420714;
var ggPoint = new BMap.Point(121.231608,31.062457);

//地图初始化
var bm = new BMap.Map("allmap");
bm.centerAndZoom(ggPoint, 15);
bm.addControl(new BMap.NavigationControl());

//坐标转换完之后的回调函数
translateCallback = function (data){
if(data.status === 0) {
var marker = new BMap.Marker(data.points[0]);
bm.addOverlay(marker);
var label = new BMap.Label("转换后的百度坐标(正确)",{offset:new BMap.Size(20,-10)});
marker.setLabel(label); //添加百度label
bm.setCenter(data.points[0]);
var pt = data.points[0];
var geoc = new BMap.Geocoder();
geoc.getLocation(pt, function(rs){
var addComp = rs.addressComponents;
alert(addComp.province + ", " + addComp.city + ", " + addComp.district + ", " + addComp.street + ", " + addComp.streetNumber);
});
}
}

setTimeout(function(){
var convertor = new BMap.Convertor();
var pointArr = [];
pointArr.push(ggPoint);
convertor.translate(pointArr, 1, 5, translateCallback)
}, 1000);

</script>
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