当前位置: 首页 > 图文教程 > 网络编程 > Javascript > Maps Javascript

Javascript
仿搜狐女人频道FLASH图片切换效果
JS CSS文章查看系统
走出JavaScript初学困境—js初学
javascript 弹性菜单，垂直的那种
javascript FormatNumber函数实现方法
动态创建的表格单元格中的事件实现代码
js继承 Base类的源码解析
javascript 一段代码引发的思考
很全的显示阴历（农历）日期的js代码
用于判断用户注册时，密码强度的JS代码
JavaScript Prototype对象
javascript 表单的友好用户体现
javascript 方法覆写实例代码
Javascript 生成指定范围数值随机数
javascript 自动转到命名锚记
捕获关闭窗口的脚本
在网页里看flash的trace数据的js类
JavaScript delete操作符应用实例
js利用Array.splice实现Array的insert/remove
JavaScript 私有成员分析

No. « 123 124 125 126 »

技术文章搜索

关键字

Maps Javascript

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2009-09-12   浏览: 319 ::
收藏到网摘: n/a

<html>
<head>
<title>Ajaxian Maps</title>
<style type="text/css">
h1{
font:20pt sans-serif;
}
#outerDiv{
height:600px;
width:800px;
border:1px solid black;
position:relative;
overflow:hidden;
}
#innerDiv{
position:relative;
left:0px;
top:0px;
}
#toggleZoomDiv{
position:absolute;
top:10px;
left:10px;
z-index:1
width:72px;
height:30px;
}
#togglePushPinDiv{
position:absolute;
top:10px;
left:87px;
z-index:1;
width:72px;
height:30px
}
</style>
<script language="javascript" src="resource/js/browserdetect_lite.js" type="text/javascript"></script>
<script language="javascript" src="resource/js/opacity.js" type="text/javascript"></script>
<script type="text/javascript" language="javascript">
//常数
var viewportWidth=800;
var viewportHeight=600;
var tileSize=100;
var zoom=0;
var zoomSizes=[["2000px","1400px"],["1500px","1050px"]];
//用来控制地图div的移动
var dragging=false;
var top;
var left;
var dragStartTop;
var dragStartLeft;
function init(){
//让inner div足够大，以正确显示出地图
setInnerDivSize(zoomSizes[zoom][0],zoomSizes[zoom][1]);
//为拖曳操作绑定鼠标监听器
var outerDiv=document.getElementById("outerDiv");
outerDiv.onmousedown=startMove;
outerDiv.onmousemove=processMove;
outerDiv.onmouseup=stopMove;
//在IE中支持拖曳所必须
outerDiv.ondragstart=function()
{ return false;}
//解决在IE中触发器div的透明度问题
new OpacityObject('toggleZoomDiv','resource/images/zoom').setBackground();
new OpacityObject('togglePushPinDiv','resource/images/pushpin').setBackground();
checkTiles();
}
function startMove(event){
//针对IE必需
if(!event)event=window.event;
dragStartLeft=event.clientX;
dragStartTop=event.clientY;
var innerDiv=document.getElementById("innerDiv");
innerDiv.style.cursor="-moz-grab";
top=stripPx(innerDiv.style.top);
left=stripPx(innerDiv.style.left);
dragging=true;
return false;
}
function processMove(event){
if(!event)event=window.event; //for IE
var innerDiv=document.getElementById("innerDiv");
if(dragging){
innerDiv.style.top=parseFloat(top)+(event.clientY-dragStartTop);
innerDiv.style.left=parseFloat(left)+(event.clientX-dragStartLeft);
}
checkTiles();
}
function checkTiles(){
//检查在inner div中将显示哪个标题
var visibleTiles=getVisibleTiles();
//当把每个小地图快添加到inner div中时，要先检查其是否已经添加
var innerDiv=document.getElementById("innerDiv");
var visibleTilesMap={};
for (i=0;i<visibleTiles.length ;i++)
{
var tileArray=visibleTiles[i];
var tileName="x"+tileArray[0]+"y"+tileArray[1]+"z"+zoom;
visibleTilesMap[tileName]=true;
var img=document.getElementById(tileName);
if(!img){
img=document.createElement("img");
img.src="resource/tiles/"+tileName+".jpg";
img.style.position="absolute";
img.style.left=(tileArray[0]*tileSize)+"px";
img.style.top=(tileArray[1]*tileSize)+"px";
img.style.zIndex=0;
img.setAttribute("id",tileName);
innerDiv.appendChild(img);
}
}
var imgs=innerDiv.getElementByTagName("img");
for(i=0;i<imgs.length;i++){
var id=imgs[i].getAttribute("id");
if(!visibleTilesMap[id]){
innerDiv.removeChild(imgs[i]);
i--;//compensate for live nodeslist
}
}
}
function getVisibleTiles(){
var innerDiv=document.getElementById("innerDiv");
var mapX=stripPx(innerDiv.style.left);
var mapY=stripPx(innerDiv.style.top);
var startX=Math.abs(Math.floor(mapX/tileSize))-1;
var startY=Math.abs(Math.floor(mapY/tileSize))-1;
var tilesX=Math.ceil(viewportWidth/tileSize)+1;
var tilesY=Math.ceil(viewportHeight/tileSize)+1;
var visibleTileArray=[];
var counter=0;
for(x=startX;x<(tilesX+startX);x++){
for(y=startY;y<(tilesY+startY);y++){
visibleTileArray[counter++]=[x,y];
}
}
return visibleTileArray;
}
function stopMove(){
var innerDiv=document.getElementById("innerDiv");
innerDiv.style.cursor="";
dragging=false;
}
function stripPx(value){
if(value=="")return 0;
return parseFloat(value.substring(0,value.length-2));
}
function setInnerDivSize(width,height){
var innerDiv=document.getElementById("innerDiv");
innerDiv.style.width=width;
innerDiv.style.height=height;
}
function toggleZoom(){
zoom=(zoom==0)?1:0;
var innerDiv=document.getElementById("innerDiv");
var imgs=innerDiv.getElementsByTagName("img");
while(imgs.length>0)innerDiv.removeChild(imgs[0]);
setInnerDivSize(zoomSizes[zoom][0],zoomSizes[zoom][1]);
if(document.getElementById("pushPin"))togglePushPin();
checkTiles();
}
function togglePushPin(){
var pinImage=document.getElementById("pushPin");
if(pinImage){
pinImage.parentNode.removeChild(pinImage);
var dialog=document.getElementById("pinDialog");
dialog.parentNode.removeChild(dialog);
return;
}
var innerDiv=document.getElementById("innerDiv");
pinImage=document.createElement("div");
pinImage.style.position="absolute";
pinImage.style.left=(zoom==0)?"850px":"630px";
pinImage.style.top=(zoom==0)?"570px":"420px";
pinImage.style.width="37px";
pinImage.style.height="34px";
pinImage.zIndex=1;
pinImage.setAttribute("id","pushPin");
innerDiv.appendChild(pinImage);
new OpacityObject("pubshPin","resource/images/pin").setBackground();
var dialog=document.createElement("div");
dialog.style.position="absolute";
dialog.style.left=(stripPx(pinImage.style.left)-90)+"px";
dialog.style.top=(stripPx(pinImage.style.top)-210)+"px";
dialog.style.width="309px";
dialog.style.height="229px";
dialog.style.zIndex=2;
dialog.setAttribute("id","pinDialog");
dialog.innerHTML="<table height='80%' width='100%'>"+"<tr><td align='center'>The capital of Spain</td></tr></table>";
innerDiv.appendChild(dialog);
new OpacityObject('pinDialog','resource/images/dialog').setBackground();
}
</script>
</head>
<body onload="init()">
<p>
<h1>Ajaxian Maps</h1>
</p>
<div id="outerDiv">
<div id="toggleZoomDiv" onclick="toggleZoom()">
</div>
<div id="togglePushPinDiv" onclick="togglePushPin()">
</div>
<div id="innerDiv" style="z-index:0">
The rain in Spain falls mainly in the plains.
</div>
</div>
</body>
</html>