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js实现3D图片环展示效果

程序员文章站 2022-05-12 19:57:37
可对整体进行拖拽 效果图: 代码如下:

可对整体进行拖拽

效果图:

js实现3D图片环展示效果

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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