js实现3D图片环展示效果
shangpudxd 人气:0可对整体进行拖拽
效果图：
代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{padding:0;margin:0; font-family: "Proxima Nova","proxima-nova","Helvetica Neue",Helvetica,Arial,sans-serif !important;}
html body{overflow: hidden;}
body{background:#ccc;}
.box{width:140px; height:200px; -webkit-transform-style:preserve-3d; -webkit-transform: perspective(800px) rotateY(0deg) rotateX(0deg); position:relative; margin:400px auto;}
.box span{width:140px; height:200px; position: absolute; background:deepskyblue; font-size:20px;
text-align: center; line-height:200px; color:white;}
</style>
<script>
function r2n(n){
return n*Math.PI/180
}
window.onload=function(){
var oBox=document.getElementsByClassName('box')[0];
var aS=document.getElementsByTagName('span');
for(var i=0;i<aS.length;i++){
aS[i].style.WebkitTransition='1s all ease '+(aS.length-i)*.1+'s';
aS[i].style.WebkitTransform='rotateY('+i*360/aS.length+'deg)'+' translateZ(500px) '
}
var pos=[];
var x=0;
var y=0;
var timer=null;
var timer2=null;
document.onmousedown=function(ev){
timer=setInterval(function(){
pos[0]=pos[2];
pos[1]=pos[3];
pos[2]=x;
pos[3]=y;
},30);
var disx=ev.pageX-x;
var disy=ev.pageY-y;
document.onmousemove=function(ev){
x=ev.pageX-disx;
y=ev.pageY-disy;
oBox.style.WebkitTransform=' perspective(800px)'+' rotateY('+x/3+'deg)'+'rotateX('+-y/3+'deg)';
};
document.onmouseup=function(){
clearInterval(timer);
var speedx=pos[2]-pos[0];
var speedy=pos[3]-pos[1];
timer2=setInterval(function(){
x+=speedx;
y+=speedy;
oBox.style.WebkitTransform=' perspective(800px)'+' rotateY('+x/3+'deg)'+'rotateX('+-y/3+'deg)';
speedx*=0.94;
speedy*=0.94;
if(Math.abs(speedx)<1)speedx=0;
if(Math.abs(speedy)<1)speedy=0;
if(speedx==0&&speedy==0){
clearInterval(timer2)
}
},30);
document.onmousemove=null;
document.onmouseup=null;
}
};
return false
}
</script>
</head>
<body>
<div class="box">
<span>1</span>
<span>2</span>
<span>3</span>
<span>4</span>
<span>5</span>
<span>6</span>
<span>7</span>
<span>8</span>
<span>9</span>
<span>10</span>
<span>11</span>
<span>12</span>
</div>
</body>
</html>
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