js实现的页面矩阵图形变换特效

前端技术 2023/09/05 JavaScript

本文实例讲述了js实现的页面矩阵图形变换特效。分享给大家供大家参考，具体如下：

运行效果截图如下：

具体代码如下：

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv=\"Content-Type\" content=\"text/html;charset=UTF-8\" />
    <title>matrix</title>
    <style type=\"text/css\">
      body {
        margin:0; padding:0;background:black;
      }
      .rect {
        background:green; 
      }
      .arc {
        border-radius:5px; background:green; box-shadow:2px solid #fff;
      }
      ul {
        list-style:none; margin:0; padding:0; position:absolute;
      }
      li {
        width:20px; height:20px; position:absolute; 
      }
      h1 {
        text-align:center; line-height:150px; font-size:150px; color:green;
      }
    </style>
  </head>
  <body>
    <h1>Chrome下兼容</h1>
  </body>
  <script type=\"text/javascript\">
    var body = document.getElementsByTagName(\"body\")[0];
    function getColor() {
      var color = \"rgb(\";
      color += (10+Math.round(Math.random()*245));
      color += \",\";
      color += (10+Math.round(Math.random()*245));
      color += \",\";
      color += (10+Math.round(Math.random()*245));
      color += \")\";
      return color;
    }
    var matrixData = [
      [1, 0, 0, 0, 1],
      [0, 1, 0, 1, 0],
      [0, 0, 1, 0, 0],
      [0, 1, 0, 1, 0],
      [1, 0, 0, 0, 1]
    ];
    var matrixData2 = [
      [0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0],//1
      [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1],//2
      [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1],//3
      [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0],//4
      [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0],//5
      [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0],//6
      [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0],//7
      [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0],//8 
      [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],//9 
      [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],//9 
      [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],//10 
      [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1],//11 
      [0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1],//12 
      [0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0] //13
    ];
    function createDom(attrs) {
      var dom = document.createElement(attrs.tagName);
      attrs.style ? dom.setAttribute(\"style\", attrs.style) : void(0);
      attrs.on ? dom.setAttribute(\"data-on\", attrs.on) : void(0);
      return dom;
    }
    var ulList = [];
    var width = window.innerWidth;
    var height = window.innerHeight;
    var cols = Math.floor(width/120);
    var rows = Math.floor(height/120);
    var xOffset = Math.floor((width%120)/2);
    function createFlyer(attrs) {
      var iLength = matrixData.length,
        jLength = matrixData[0].length,
        radius = 20,
        ul = null,
        bgColor = getColor();
      ul = createDom({tagName: \"ul\", style: \"height:\"+iLength*radius+\"px; width:\"+jLength*radius+\"px; left:\"+attrs.left+\"px; top:\"+attrs.top+\"px\"}); 
      document.body.appendChild(ul);
      for(var i=0; i<5; i++) {
        var _data = matrixData[i];
        for(var j=0; j<5; j++) {
          var style = \"width:\"+radius+\"px; height:\"+radius+\"px;left:\"+j*radius+\"px; top:\"+i*radius+\"px;background:\"+(_data[j] == 0 ? \"transparent\": bgColor);
          var li = createDom({tagName: \"li\", style: style, on: _data[j] ? 1 : 0});
          ul.appendChild(li);
        }
      }
      ulList.push(ul);
    }
    for(var i=0; i<cols; i++) {
      for(var j=0; j<rows; j++) {
        createFlyer({left: i*120+xOffset, top: 120*j});
      }
    }
    function setULBgColor(dom, color) {
      var lis = dom.getElementsByTagName(\"li\");
      for(var i=0,length=lis.length; i<length; i++) {
        var _li = lis[i];
        console.log(_li.getAttribute(\"data-on\"));
        _li.getAttribute(\"data-on\") ? _li.style.backgroundColor = color : void(0);
      }
    }
    function reset(fn) {
      var lastIndex = ulList.length - 1;
      for(var i=0,length=ulList.length; i<length; i++) {
        var ul = ulList[i];
        (function(i, ul) {
          setTimeout(function() {
            setULBgColor(ul, getColor());
            if(i === lastIndex) {
              fn ? fn() : void(0);
            }
          }, i*30);
        })(i, ul);
      }
    };
    function firstStep() {
      var color = getColor();
      var lastIndex = ulList.length - 1;
      for(var i=0,length=ulList.length; i<length; i++) {
        var ul = ulList[i];
        (function(i, ul) {
          setTimeout(function() {
            setULBgColor(ul, color);
            if(i == lastIndex) {
              secondStep();
            }
          }, i*30);
        })(i, ul);
      }
    }
    function secondStep() {
      reset(thirdStep);
    }
    function thirdStep() {
      var angle = 0;
      var addAngle = 15;
      var interval = setInterval(function() {
        angle += addAngle;
        if(angle > 720) {
          angle = 0;
          clearInterval(interval);
          createMatrix2();
        }
        for(var i=0,length=ulList.length; i<length; i++) {
          var ul = ulList[i];
          ul.style.webkitTransform = \"rotate(\"+angle+\"deg)\";
        }
      }, 50);
    }
    function createMatrix2() {
      body.innerHTML = \"\";
      var iLength = matrixData2.length,
        jLength = matrixData2[0].length,
        radius = 20,
        ul = null,
        height = jLength*radius,
        width = iLength*radius,
        bgColor = getColor(),
        left = (window.innerWidth - width)/2,
        top = (window.innerHeight - height)/2
      console.log(window.innerWidth);
      console.log(width);
      ul = createDom({tagName: \"ul\", style: \"height:\"+iLength*radius+\"px; width:\"+jLength*radius+\"px; left:\"+left+\"px; top:\"+top+\"px\"}); 
      document.body.appendChild(ul);
      for(var i=0; i<iLength; i++) {
        var _data = matrixData2[i];
        for(var j=0; j<jLength; j++) {
          var style = \"width:\"+radius+\"px; height:\"+radius+\"px;left:\"+j*radius+\"px; top:\"+i*radius+\"px;background:\"+(_data[j] == 0 ? \"transparent\": getColor());
          var li = createDom({tagName: \"li\", style: style, on: _data[j] ? 1 : 0});
          li.className = \"arc\";
          ul.appendChild(li);
        }
      }
      ul.style.webkitTransform = \"scale(0.1, 0.1)\";
      var scale = 0.1;
      var interval = setInterval(function() {
        ul.style.webkitTransform = \"scale(\"+scale+\", \"+scale+\")\";
        scale += 0.1;
        if(scale > 1) {
          clearInterval(interval);
        }
      }, 50);
    }
    firstStep();
  </script>
</html>

更多关于js特效相关内容感兴趣的读者可查看本站专题：《jQuery动画与特效用法总结》及《jQuery常见经典特效汇总》

希望本文所述对大家JavaScript程序设计有所帮助。

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