js文字聚合拼接

Posted 2020-10-06 小白不白

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <title>利用JS实现文字的聚合动画效果</title>
    <style>
        .boxWrap1{width: 160px;height: 417px;position: relative;margin:0px auto;}
        .boxWrap1 img{width: 100%;}
        .boxWrap1 div{background: url(http://itakeo.com/wpimg/2_1.png) no-repeat;background-size: 160px auto; position: absolute; left: 0px;top: 0px;
        }
        .boxWrap1.set div{ opacity: 1!important;
            transform:perspective(800px) translate3d(0px,0px,0px) rotate(0deg) scale(1)!important;
            -moz-transform:perspective(800px) translate3d(0px,0px,0px) rotate(0deg) scale(1)!important;
            -webkit-transform:perspective(800px) translate3d(0px,0px,0px) rotate(0deg) scale(1)!important;
        }
        .boxSiteWrap{ width: 100%;overflow: hidden;height: auto; background: #000;padding: 140px 0}
        .boxSiteWrap button{cursor:pointer;display: block;font-size: 16px; width: 140px;height: 40px; background: #fff;color: #000;border:none;margin:30px auto;}
    </style>
</head>

<body>
<div class="boxSiteWrap">
    <div class="boxWrap1"></div>
    <button>重新加载</button>
</div>

<script>
    window.addEventListener(‘load‘,function(){
        ;(function(){
            function init(){
                var box = document.querySelector(‘.boxWrap1‘)
                 var c=4,r=8;
                var w = box.offsetWidth/c,h = box.offsetHeight/r;
                for(var i=0;i<r;i++){
                    for(var j=0;j<c;j++) {
                        var _div=document.createElement(‘div‘);
                        var _left = j * w,_top = i * h;
                        _div.style.cssText = ‘width:‘+w+‘px;height:‘+h+‘px;left:‘+_left+‘px;top:‘+_top+‘px; opacity:0;background-position:‘+(-_left) + ‘px ‘ + (-_top) + ‘px‘;
                        _div.style.transition = _div.style.MozTransition = _div.style.WebkitTransition = ‘all ‘+ Random(1,1.8) +‘s ease‘;
                        _div.style.transform = _div.style.MozTransform = _div.style.WebkitTransform = ‘perspective(800px) translate3d(‘+Random(-200,200)+‘px, ‘+Random(-200,200)+‘px,300px) rotate(‘+Random(-90,90)+‘deg) scale(‘+ Random(0,2) +‘)‘
                        box.appendChild(_div);
                    };
                };
                setTimeout(function(){
                    box.classList.add(‘set‘)
                },100);
                function Random(start,end){
                    return Math.random()*(end-start)+start;
                };
            };
            init();
            var flag = true;
            document.querySelector(‘button‘).onclick = function(){
                if(flag){
                    document.querySelector(‘.boxWrap1‘).classList.remove(‘set‘)
                    setTimeout(function(){
                        document.querySelector(‘.boxWrap1‘).innerHTML = ‘‘;
                        init();
                        flag = true;
                    },1200);
                    flag = false;
                };
            };
        })();
    });
</script>
</body>
</html>

原文链接：http://itakeo.com/blog/2015/12/14/imgcover/?none=123

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