Google地图准确定位
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<title>GIS开发利用html5获取经纬度并在google地图中查看</title>
<!--加载google map api-->
<script type="text/javascript"
src="http://maps.googleapis.com/maps/api/js?key=AIzaSyCefZle2DqxF9i51PTfoZsZoOmvWzKYhF4&sensor=true">
</script>
</head>
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<body>
<span id="support">将下面的经纬度输入谷歌地图：</span>
<div id="show">
纬度：<span id="latitude"></span><br />
经度：<span id="longitude"></span><br />
准确度：<span id="accuracy"></span>
</div>
<script type="text/javascript">
var doc = document,
? ? latitude = doc.getElementById('latitude'),
? ? longitude = doc.getElementById('longitude'),
? ? accuracy = doc.getElementById('accuracy'),
? ? support = doc.getElementById('support'),
? ? showDiv = doc.getElementById('show');
function lodeSupport(){
? ? if(navigator.geolocation){
? ? ? ? support.innerHTML = '将下面的经纬度输入谷歌地图(纬度 经度)查看自己位置：';
? ? ? ? showDiv.style.display = 'block';
? ? ? ? navigator.geolocation.getCurrentPosition(updataPosition);
? ? }else{
? ? ? ? support.innerHTML = '对不起，浏览器不支持！';
? ? ? ? showDiv.style.display = 'none';
? ? }
}
function updataPosition(position){
? ? var latitudeP = position.coords.latitude,
? ? ? ? longitudeP = position.coords.longitude,
? ? ? ? accuracyP = position.coords.accuracy;
? ? latitude.innerHTML = latitudeP;
? ? longitude.innerHTML = longitudeP;
? ? accuracy.innerHTML = accuracyP;
//在google map中显示地址
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var myLatlng=new google.maps.LatLng(latitudeP, longitudeP);
var mapOptions = {
?center: myLatlng,
?zoom: 13,
?mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"),
mapOptions);
?
var marker = new google.maps.Marker({
position: myLatlng,
title:"小编的地址"
});
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//将标记显示在地图中
marker.setMap(map);
?
?
}
window.addEventListener('load', lodeSupport , true);
</script>
<div id="map_canvas" style="width:500px; height:500px;"></div>
</body>
</html>
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