Geolocation
<!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>无标题文档</title>
<script>
//LBS : 基于地图信息的应用
window.onload = function(){
var oInput = document.getElementById('input1');
var oT = document.getElementById('t1');
var timer = null;
oInput.onclick = function(){
timer = navigator.geolocation.watchPosition(function(position){
oT.value += '经度:' + position.coords.longitude+'\n';
oT.value += '纬度 :' + position.coords.latitude+'\n';
oT.value += '准确度 :' + position.coords.accuracy+'\n';
oT.value += '海拔 :' + position.coords.altitude+'\n';
oT.value += '海拔准确度 :' + position.coords.altitudeAcuracy+'\n';
oT.value += '行进方向 :' + position.coords.heading+'\n';
oT.value += '地面速度 :' + position.coords.speed+'\n';
oT.value += '时间戳:' + new Date(position.timestamp)+'\n';
},function(err){
//err.code // 失败所对应的编号
alert( err.code );
navigator.geolocation.clearWatch(timer);
},{
enableHighAcuracy : true,
timeout : 5000,
maximumAge : 5000,
frequency : 1000
});
};
};
</script>
</head>
<body>
<input type="button" value="请求" id="input1" /><br />
<textarea id="t1" style="width:400px; height:400px; border:1px #000 solid;">
</textarea>
</body>
</html>
