Google Map API应用例子源代码
最近项目需要做一个地图的功能，上面要加上一些地标，以方便用户使用，所以今天花时间看了看Google API搞了好一会儿，终于做到满足自已的功能要求了，发布出来给需要的朋友看看。
其实GoogleMap API还是比较好用的，慢慢看GoogleMap API的帮助都可以做出来，我这里主要介绍的是怎么将地标存放起来，再读出来。不然只是一个地图在哪儿没有什么意义。
我这里是用XML来存放的，存下来的数据还是比较简单，你可以根据自已的需要做一些修改就可以了，也可以换成数据库来存放。
Jquery.GoogleMap.js源代码内容
/*
-- GoogleMap操作类
-- 作者:李华顺
-- 官方网站：http://www.wathon.com
-- 我的博客：http://huacn.cnblogs.com
-- 演示地址：http://www.wathon.com/opensource/js/GoogleMap/Default.aspx
-- 使用请保存署名
*/
//创建GoogleMap
//panelMap - 显示地图的对象区域
//showScale - 是否显示改变大小的控件 true false
//showLargeControl - 是否显示切换控件 true false
//showTypeControl - 是否显示切换显示类型的按钮
//showZoom - 是否显示左下角的小地图
//zoomSize - 视觉距离
var clickListener ;
var GoogleMapCreate = function(panelMap,showScale,showLargeControl,showTypeControl,showZoom,zoomSize){
myMap = new GMap2(panelMap);
if(showLargeControl)
{
myMap.addControl(new GLargeMapControl());
}
else
{
myMap.addControl(new GSmallMapControl());
}
if(showTypeControl)
{
myMap.addControl(new GMapTypeControl());
}
if(showScale)
{
myMap.addControl(new GScaleControl());
}
if(showZoom)
{
myMap.addControl(new GOverviewMapControl());
}
myMap.enableDoubleClickZoom();
myMap.enableContinuousZoom();
myMap.setCenter(new GLatLng(39.917, 116.397), zoomSize,G_SATELLITE_MAP);
return myMap;
};
//添加事件
var GoogleMapAddEvent = function(myMap,eventName,fun){
clickListener = GEvent.addListener(myMap,eventName,fun);
};
//去除事件
var GoogleMapRemoveEvent = function(myMap,eventName){
GEvent.removeListener(clickListener);
};
//在指定坐标上显示tip提示
var GoogleMapShowTip = function(myMap,point,text){
myMap.openInfoWindow(point,document.createTextNode(text));
};
//在指定坐标上加入地标
var GoogleMapNewMarker = function(myMap,point){
var marker = new GMarker(point);
myMap.addOverlay(marker);
return marker;
};
//根据坐标点取得X坐标
var GoogleMapPointX = function(point){
return point.lat();
};
//根据坐标点取得Y坐标
var GoogleMapPointY = function(point){
return point.lng();
};
服务端部分的源代码内容
/*
-- GoogleMap操作类
-- 作者:李华顺
-- 官方网站：http://www.wathon.com
-- 我的博客：http://huacn.cnblogs.com
-- 演示地址：http://www.wathon.com/opensource/js/GoogleMap/Default.aspx
-- 使用请保存署名
*/
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml;
namespace GoogleMap
{
public partial class _Default : System.Web.UI.Page
{
protected string mapName = "";
protected string mapAreaX = "";
protected string mapAreaY = "";
protected void Page_Load(object sender, EventArgs e)
{
initPage();
}
public void initPage()
{
AreaList myArea = new AreaList(Server.MapPath("App_Data\\"));
if (Request["type"] == "savearea")
{
Response.ContentType = "text/xml";
Response.ContentEncoding = System.Text.Encoding.UTF8;
//保存地标
string strName = Request["name"];
string strAreaX = Request["x"];
string strAreaY = Request["y"];
myArea.AppendNew(strName, strAreaX, strAreaY);
WriteResult(Request["name"]);
Response.End();
}
System.Xml.XmlNodeList myNodes = myArea.GetAreaList();
for (int i = 0; i < myNodes.Count; i++)
{
if (i > 0)
{
mapName += ",";
mapAreaX += ",";
mapAreaY += ",";
}
mapName += "'" + myNodes[i].SelectSingleNode("name").InnerText + "'";
mapAreaX += "'" + myNodes[i].SelectSingleNode("x").InnerText + "'";
mapAreaY += "'" + myNodes[i].SelectSingleNode("y").InnerText + "'";
}
}
private void WriteResult(string strValue)
{
string strContent = "<?xml version=\"1.0\" encoding=\"utf-8\"?>";
strContent += "<result>" + strValue + "</result>";
Response.Write(strContent);
Response.End();
}
}
/// <summary>
/// AreaList 的摘要说明
/// </summary>
public class AreaList
{
XmlDocument xmlControl = new XmlDocument();
string strFileName = "\\MapArea.xml";
public AreaList(string appPath)
{
strFileName = appPath + strFileName;
if (!System.IO.File.Exists(strFileName))
{
CreateAreaListFile();
}
xmlControl.Load(strFileName);
}
private void CreateAreaListFile()
{
xmlControl.LoadXml("<?xml version=\"1.0\" encoding=\"utf-8\" ?><list></list>");
xmlControl.Save(strFileName);
}
public void AppendNew(string strName, string strX, string strY)
{
XmlNode xmlNodeLast = xmlControl.SelectSingleNode("//list");
string strXml = "<name>" + makeCDATA(strName) + "</name><x>" + makeCDATA(strX) + "</x><y>" + makeCDATA(strY) + "</y>";
XmlNode xmlNode = xmlControl.CreateNode(XmlNodeType.Element, "item", "");
xmlNode.InnerXml = strXml;
xmlNodeLast.AppendChild(xmlNode);
xmlControl.Save(strFileName);
}
/// <summary>
/// 取得旧的列表
/// name,area
/// 地标名,坐标
/// </summary>
/// <returns></returns>
public System.Xml.XmlNodeList GetAreaList()
{
System.Xml.XmlDocument xmlDoc = new System.Xml.XmlDocument();
xmlDoc.Load(strFileName);
System.Xml.XmlNodeList myNodes = xmlDoc.SelectNodes("//list//item");
return myNodes;
}
private string makeCDATA(string strValue)
{
return "<![CDATA[" + strValue + "]]>";
}
}
}
HTML部分的源代码内容
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="GoogleMap._Default" %>
<!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>GoogleMap例子</title>
<script type="text/javascript" src="scripts/jquery.js"></script>
<script type="text/javascript" src="scripts/jquery.interface.js"></script>
<script type="text/javascript" src="scripts/jquery.xml.js"></script>
<script type="text/javascript" src="scripts/jquery.corner.js"></script>
<script type="text/javascript" src="scripts/jquery.googlemap.js"></script>
<script type="text/javascript" src="http://maps.google.com/maps?file=api&v=2&key=ABQIAAAAC-ble-vmy_g7-Qvem5P86xS0EUK71C1jmG2AnVsYTJQQEVD0-RQfglPje0X6A_y2FM1T2dU6BPVKQg"></script>
<style type="text/css">
body{
font-size:12px;
font-family:宋体;
text-align:center;
}
#layer { margin:20px auto; text-align:left; width:800px;}
.toolbar,.arealist { background:#F5F5F5;border:1px solid #F0F0F0; padding:5px; margin-bottom:8px;}
#panelMap {width:800px; height:450px;}
.window { }
</style>
<script type="text/javascript">
var myMap;
var MapName = [<%=mapName %>];
var MapAreaX = [<%=mapAreaX %>];
var MapAreaY = [<%=mapAreaY %>];
var zoomSize = 5;
$(document).ready(function(){
myMap = GoogleMapCreate(document.getElementById("panelMap"),true,true,true,true,zoomSize);
//给“添加”按钮的click放入事件
$('#lblAddArea').click(function() {
//$('div#info').show('slow');
GoogleMapAddEvent(myMap, "click", function(marker, point) {
GoogleMapNewMarker(myMap,point);
var areaName = prompt("请输入地标名称：","");
var x = GoogleMapPointX(point);
var y = GoogleMapPointY(point);
$.ajax({
url:"default.aspx?type=savearea&x="+x+"&y="+y+"&name="+areaName,
type:"post",
success:function(xmlData){
GoogleMapShowTip(myMap,point,GetNodeValue(xmlData.selectSingleNode("result")));
}
});
GoogleMapRemoveEvent(myMap,"click");
});
});
//读旧的地标
writeAreaList();
//开启自动切换地标
//autoSelectMarker();
});
//创建地标到地图上
var setMapArea = function(tip,x,y){
var point = new GLatLng(x,y,zoomSize);
var myMarker = GoogleMapNewMarker(myMap,point);
GEvent.addListener(myMarker, "click", function() {
GoogleMapShowTip(myMap,point,tip);
});
};
//生成地标
var writeAreaList = function(){
var areaList = $("div.arealist");
for(var i=0; i<MapName.length;i++)
{
var tip = MapName[i];
var x = MapAreaX[i];
var y = MapAreaY[i];
areaList.append("<a href=\"javascript:selectMarker('" + tip + "'," + x + "," + y + ");\">"+tip+"</a> ");
setMapArea(tip,x,y);
}
};
//选择一个地标
var selectMarker = function(tip,x,y){
var point = new GLatLng(x,y);
myMap.panTo(point,zoomSize);
GoogleMapShowTip(myMap,point,tip);
};
//自动在几个地标上切换的事件
var currentMarkerID = 0;
var autoSelectMarker = function(){
if(currentMarkerID == MapName.length)
{
currentMarkerID = 0;
}
var tip = MapName[currentMarkerID];
var x = MapAreaX[currentMarkerID];
var y = MapAreaY[currentMarkerID];
selectMarker(tip,x,y);
currentMarkerID ++;
setTimeout(autoSelectMarker,4000);
};
</script>
</head>
<body onunload="GUnload()">
<form id="form1" runat="server">
<div id="layer">
<div class="toolbar">
<a href="javascript:;" id="lblAddArea">添加地标</a>
</div>
<div class="arealist">
</div>
<div id="panelMap">
</div>
</div>
</form>
</body>
</html>
GoogleMap API应用例子源代码：http://files.cnblogs.com/huacn/GoogleMap.zip
posted on 2007-08-10 23:33
李华顺 阅读(4752)
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