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ASP.NET Google Maps Javascript API V3 实战基础篇一叠加层地图

2010-11-15 15:06 288 查看

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="MapType_Overlay.aspx.cs"
Inherits="Samples.Overlays.MapType_Overlay" %>

<!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 runat="server">
<title>叠加层地图</title>
<style type="text/css">
#maps
{
height: 450px;
}
</style>

<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=zh-CN"></script>

<script language="javascript" type="text/javascript">

//设置层次提示大小
function CoordMapType(tileSize) {
this.tileSize = tileSize;
}
//叠加层地图原型
CoordMapType.prototype.getTile = function(coord, zoom, ownerDocument) {
var div = ownerDocument.createElement("DIV");
div.innerHTML = coord;
div.style.width = this.tileSize.width + "px";
div.style.height = this.tileSize.height + "px";
div.style.fontSize = "10";
div.style.borderStyle = "solid";
div.style.borderWidth = "1px";
div.style.borderColor = "#AAAAAA";
return div;
};
var map;
var chicago = new google.maps.LatLng(41.850033, -87.6500523);
function initialize() {
var Options = {
zoom: 10, center: chicago, mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("maps"), Options);
//创建叠加层地图并添加到地图面板上
map.overlayMapTypes.insertAt(0, new CoordMapType(new google.maps.Size(256, 256)));
}
//将地图初始化函数绑定到window的load事件
google.maps.event.addDomListener(window, "load", initialize);
</script>

</head>
<body>
<form id="form1" runat="server">
<div id="maps">
</div>
</form>
</body>
</html>

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