求各位大大，如果通过时间控制些旋转速度，实在不明了。

bassice 2010-05-20 02:00:31

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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>JS旋转图片阵效果 brought to you by 斩梦人.天天 qq:22062019</title>
<style type="text/css">
body{background:black;color:white;font-family: Arial, Helvetica, sans-serif;font-size:16px;line-height:29px}
span{border:1px solid gray;background:#333;padding:4px;font-weight:bold;}
</style>

<script>
window.onload=function(){

var time = 1;
rt = new imgRound("imgContainer", 120, 90, 500, 100, 230, 100, 50, 1);
setInterval(function(){rt.roundMove()},50);

}
function imgRound(id,w,h,x,y,r,dv,rh,ah){
if (ah==undefined) ah=1;
if (rh==undefined) rh=10;
var dv=dv*ah; //旋转速度
var pi=3.1415926575;
var d=pi/2;
var pd=Math.asin(w/2/r);
var smove=true;
var imgArr=new Array();
var objectId=id;
var o=document.getElementById(objectId);
o.style.position="relative";
var arrimg=o.getElementsByTagName("div");
var pn=arrimg.length; //图片数量
var ed=pi*2/pn;
for (n=0;n<arrimg.length;n++){
var lk=arrimg[n].getAttribute("link");
if (lk!=null) arrimg[n].setAttribute("title",lk)
arrimg[n].onclick=function(){
if (this.getAttribute("link")!=null){
if (this.getAttribute("target")!="_blank") window.location=(this.getAttribute("link"))
else window.open(this.getAttribute("link"))
}
}
arrimg[n].onmouseout=function(){smove=true;}
arrimg[n].onmouseover=function(){smove=false;}
arrimg[n].style.position="absolute";
imgArr.push(arrimg[n]);

}

this.roundMove=function(){

if (smove) d = d+ dv;
for (n=0;n<=pn-1;n++){

var o=imgArr[n];
var ta=Math.sin(d+ed*n),strFilter;
if (ta<0) o.style.left=Math.cos(d+ed*n-pd)*r+x+"px";
else o.style.left=Math.cos(d+ed*n+pd)*r+x+"px";
o.style.top=ta*rh+rh+y+"px";
var zoom=Math.abs(Math.sin((d+ed*n)/2+pi/4))*0.5+0.5;
o.style.width=Math.abs(Math.cos(d+ed*n+pd)-Math.cos(d+ed*n-pd))*zoom*r+"px";
o.style.height=zoom*h+"px";
if (ta<0) {ta=(ta+1)*80+20;o.style.zIndex=0;}
else {ta=100;o.style.zIndex=1}
if (o.style.zIndex<=0) strFilter="FlipH(enabled:true)"
else strFilter="FlipH(enabled:false)";
strFilter=strFilter+" alpha(opacity="+ta+")";
o.style.opacity=ta/100;
o.style.filter=strFilter;
}

}
}
</script>
</head>
<body>
<span><使用方法</span>:<br/>
首先定义一个imgRound类:<br/>
<span>var rt = new imgRound("imgContainer", 120, 90, 500, 220, 230, 0.01,20,2)</span><br/>
然后使用定时函数调用imgRound实例的roundMove方法:<br/>
<span>setInterval(function(){rt.roundMove()}, 20)</span><br/>
<div>
参数说明: initRound(id,w,h,x,y,r,dv,rh,ah);<br/>
id: 容器ID<br/>
w: 图片宽度<br/>
h: 图片高度<br/>
x: 圆心水平位置<br/>
y: 圆心垂直位置<br/>
r: 圆圈半径<br/>
dv: 旋转速度<br/>
rh: 垂直距离 (可选,默认为10)<br/>
ah: 旋转方向 (可选,1:顺时针,2:逆时针,默认为1)<br/>
</div>
<div id="imgContainer" style="width:600px;height:300px;border:1px solid red">
<div>asdfasdf2</div>
<div>asdfasdf2</div>
<div>asdfasdf2</div>
<div>asdfasdf2</div>
<div>asdfasdf2</div>
<div>asdfasdf3</div>
<div>asdfasdf33</div>
<div>asdfasdf</div>
<div>asdfasdf3</div>
<div>asdfasdf3</div>
<div>asdfasdf3</div>
</div>

</body>
</html>

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