有空间感的图片环形滚动代码

代码简介:

图片围成环形来回滚动的图片特效,有立体感,而且设计的也挺不错,演示中除了部分图片,为了让页面加载更快,如果你想用的话,你可以无限制添加下去,只要你的网页很快哦。

代码内容:

View Code
<html>
 
<head>
  
<title>有空间感的图片环形滚动代码 - www.webdm.cn</title>
<style>
html,body
{background:#990000;margin:0px; }
#pics_3d
{
    position
:absolute;
    height
:300px;
    width
:100%; 
    background
:#000; 
    top
:120px;
    border-bottom
:20px solid #420000; 
    border-top
:20px solid #420000; 
}
img
{
    position
:absolute;
    background
:#eee; 
    left
:0;top:0;
    border
:5px solid #00CCFF;
}
</style>
 
</head>
 
<body>
 
<div id="pics_3d">
      
<img src="http://www.webdm.cn/images/wall5.jpg" />  
      
<img src="http://www.webdm.cn/images/wall6.jpg" />  
      
<img src="http://www.webdm.cn/images/wall7.jpg" />  
 
</div>
 
</body>
<script >
Item
=function(UI){
    
this.angle=0;
    
this.UI=UI;
    
this.update();
};
Item.ini
={

    axle_w:
400,
    axle_h:
10,
    cen_x:
500,
    cen_y:
260

};
Item.prototype.update
=function(){

    
var J=this.UI.style,C=Item.ini,W=C.axle_w,H=C.axle_h,X=C.cen_x,Y=C.cen_y;
    
var angle=this.angle/180*Math.PI;
    var left=Math.cos(angle)*W+X;
    
var top=Math.sin(angle)*H+Y;
    
var A=this.angle>270?this.angle-360:this.angle;
    
var size=360-Math.abs(90-A)*3;
    
this.UI.width=Math.max(size,120);
    
var opacity=Math.max(10,size-180);
    J.filter
='alpha(opacity='+opacity+')';
    J.opacity
=opacity/100;
    J.left=(left-this.UI.offsetWidth/2)+'px';
    top=(top-this.UI.offsetHeight)+'px';
    J.top
=top;
    J.zIndex
=parseInt(size*100);

};
Nav_3D
={

    items:[],
    dir:
1,
    index:
0,
    hover:
false,
    add:
function(item){
        
this.items.push(item);
        item.index
=this.items.length-1;
        item.UI.onclick
=function (){
            
var J=item.angle,M=Nav_3D;
            
if(M.uping)return;
            
if(J==90){
                
return alert('goto new url..')
            };
            M.wheel_90(item);
            M.index
=item.index;
        };
        item.UI.onmouseover
=function (){
            
if(item.angle==90){
                Nav_3D.hover
=true;
                clearTimeout(Nav_3D.autoTimer);
            };
        };
        item.UI.onmouseout
=function (){
            
if(item.angle==90){
                Nav_3D.hover
=false;
                Nav_3D.auto();
            };
        };
        
return this;
    },
    wheel_90:
function(hot){
        
if(this.uping)return;
        
this.uping=true;
        
var This=this;
        
this.timer=setInterval(function (){
            clearTimeout(This.autoTimer);
            
var A=hot.angle;
            This.dir
=A<270&&A>90?-1:1;
            
if(A==90){
                clearInterval(This.timer);
                This.uping
=false;
                This.onEnd(hot);
            }
            
if(A>270)A-=360;
            
var set=Math.ceil(Math.abs((90-A)*0.1));
            
for (var i=0;i<This.items.length;i++ ) {
                
var J=This.items[i];
                J.angle
+= (set*This.dir);
                J.update();
                
if(J.angle>360)J.angle-=360;
                
if(J.angle<0)J.angle +=360;
            };
        },
15);
    },

    ready:
function(){
        
var J=this.items,step=parseInt(360/J.length);
        for (var i=0;i<J.length;i++) {J[i].angle=i*step+90;}
        
this.wheel_90(this.items[0]);
        Nav_3D.prevHot
=this.items[0].UI;
        Nav_3D.setHot();
    },

    setHot:
function(isHot){
        
if(!this.prevHot)return;
        
with(this.prevHot.style){
            borderColor
=isHot!==false?'#CC0000':'#00CCFF';
            cursor
=isHot!==false?'default':"pointer";
        };
        
return this;
    },
    
    auto:
function(){
        
this.index--;
        
if(this.index<0)this.index=this.items.length-1;
        
var J=this.items[this.index];
        
this.setHot(false).prevHot=J.UI;
        
this.setHot();
        
this.wheel_90(J);
    },

    onEnd:
function(hot){
        
if(this.hover){
            
return setTimeout(function(){Nav_3D.onEnd();},100);
        }
        
this.autoTimer=setTimeout(function(){Nav_3D.auto();},1500);
    }

};
var imgs=document.getElementById("pics_3d").getElementsByTagName("IMG");
for (var i=0;i<imgs.length;i++ ) {
    Nav_3D.add(
new Item(imgs[i]))
}
Nav_3D.ready();

</script>
</html> 
<br />
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代码来自:http://www.webdm.cn/webcode/021c961c-98d1-44b0-a6e6-1c9034755587.html

 

posted @ 2011-08-29 10:36  网页代码站  阅读(526)  评论(0编辑  收藏  举报