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    • 一款超酷的js+css3实现的3D标签云特效兼容ie7/8/9CSS3+DIV实现漂亮的动画彩色标签HTML5 SVG和CSS3实现的表单浮动标签特效源码仅6个span标签实现的纯CSS3动态Loading加载特效源码jQuery+ajax+html5+css3等最新技术整合的Tab标签栏切换特效纯css3实现的tab标签(无图片)CSS3的几个标签速记(推荐)

    更新时间：2021-09-07 08:11:37      浏览量：502

    今天给大家带来一款超酷的js+css3实现的3D标签云特效，

    看惯了flash的，来试试这个吧。

    ie7，8，9兼容哦~

    html如下：

    复制代码
    代码如下:






    超酷的js+css3实现的3D标签云特效,前端爱好者www.250ba.com




    超酷的js+css3实现的3D标签云特效





    js代码如下（tagscloud.js）：

    复制代码
    代码如下:

    var radius = 90;
    var d = 200;
    var dtr = Math.PI / 180;
    var mcList = [];
    var lasta = 1;
    var lastb = 1;
    var distr = true;
    var tspeed = 11;
    var size = 200;
    var mouseX = 0;
    var mouseY = 10;
    var howElliptical = 1;
    var aA = null;
    var oDiv = null;
    window.onload=function ()
    {
    var i=0;
    var oTag=null;
    oDiv=document.getElementById('tagscloud');
    aA=oDiv.getElementsByTagName('a');
    for(i=0;i{
    oTag={};
    aA[i].onmouseover = (function (obj) {
    return function () {
    obj.on = true;
    this.style.zIndex = 9999;
    this.style.color = '#fff';
    this.style.background = '#0099ff';
    this.style.padding = '5px 5px';
    this.style.filter = "alpha(opacity=100)";
    this.style.opacity = 1;
    }
    })(oTag)
    aA[i].onmouseout = (function (obj) {
    return function () {
    obj.on = false;
    this.style.zIndex = obj.zIndex;
    this.style.color = '#fff';
    this.style.background = '#9933FF';
    this.style.padding = '5px';
    this.style.filter = "alpha(opacity=" + 100 * obj.alpha + ")";
    this.style.opacity = obj.alpha;
    this.style.zIndex = obj.zIndex;
    }
    })(oTag)
    oTag.offsetWidth = aA[i].offsetWidth;
    oTag.offsetHeight = aA[i].offsetHeight;
    mcList.push(oTag);
    }
    sineCosine( 0,0,0 );
    positionAll();
    (function () {
    update();
    setTimeout(arguments.callee, 40);
    })();
    };
    function update()
    {
    var a, b, c = 0;
    a = (Math.min(Math.max(-mouseY, -size), size) / radius) * tspeed;
    b = (-Math.min(Math.max(-mouseX, -size), size) / radius) * tspeed;
    lasta = a;
    lastb = b;
    if (Math.abs(a) <= 0.01 && Math.abs(b) <= 0.01) {
    return;
    }
    sineCosine(a, b, c);
    for (var i = 0; i < mcList.length; i++) {
    if (mcList[i].on) {
    continue;
    }
    var rx1 = mcList[i].cx;
    var ry1 = mcList[i].cy * ca + mcList[i].cz * (-sa);
    var rz1 = mcList[i].cy * sa + mcList[i].cz * ca;

    var rx2 = rx1 * cb + rz1 * sb;
    var ry2 = ry1;
    var rz2 = rx1 * (-sb) + rz1 * cb;

    var rx3 = rx2 * cc + ry2 * (-sc);
    var ry3 = rx2 * sc + ry2 * cc;
    var rz3 = rz2;

    mcList[i].cx = rx3;
    mcList[i].cy = ry3;
    mcList[i].cz = rz3;

    per = d / (d + rz3);

    mcList[i].x = (howElliptical * rx3 * per) - (howElliptical * 2);
    mcList[i].y = ry3 * per;
    mcList[i].scale = per;
    var alpha = per;
    alpha = (alpha - 0.6) * (10 / 6);
    mcList[i].alpha = alpha * alpha * alpha - 0.2;
    mcList[i].zIndex = Math.ceil(100 - Math.floor(mcList[i].cz));
    }
    doPosition();
    }
    function depthSort()
    {
    var i=0;
    var aTmp=[];
    for(i=0;i{
    aTmp.push(aA[i]);
    }
    aTmp.sort
    (
    function (vItem1, vItem2)
    {
    if(vItem1.cz>vItem2.cz)
    {
    return -1;
    }
    else if(vItem1.cz{
    return 1;
    }
    else
    {
    return 0;
    }
    }
    );
    for(i=0;i{
    aTmp[i].style.zIndex=i;
    }
    }
    function positionAll()
    {
    var phi = 0;
    var theta = 0;
    var max = mcList.length;
    for (var i = 0; i < max; i++) {
    if (distr) {
    phi = Math.acos(-1 + (2 * (i + 1) - 1) / max);
    theta = Math.sqrt(max * Math.PI) * phi;
    } else {
    phi = Math.random() * (Math.PI);
    theta = Math.random() * (2 * Math.PI);
    }
    //坐标变换
    mcList[i].cx = radius * Math.cos(theta) * Math.sin(phi);
    mcList[i].cy = radius * Math.sin(theta) * Math.sin(phi);
    mcList[i].cz = radius * Math.cos(phi);

    aA[i].style.left = mcList[i].cx + oDiv.offsetWidth / 2 - mcList[i].offsetWidth / 2 + 'px';
    aA[i].style.top = mcList[i].cy + oDiv.offsetHeight / 2 - mcList[i].offsetHeight / 2 + 'px';
    }
    }
    function doPosition()
    {
    var l = oDiv.offsetWidth / 2;
    var t = oDiv.offsetHeight / 2;
    for (var i = 0; i < mcList.length; i++) {
    if (mcList[i].on) {
    continue;
    }
    var aAs = aA[i].style;
    if (mcList[i].alpha > 0.1) {
    if (aAs.display != '')
    aAs.display = '';
    } else {
    if (aAs.display != 'none')
    aAs.display = 'none';
    continue;
    }
    aAs.left = mcList[i].cx + l - mcList[i].offsetWidth / 2 + 'px';
    aAs.top = mcList[i].cy + t - mcList[i].offsetHeight / 2 + 'px';
    //aAs.fontSize=Math.ceil(12*mcList[i].scale/2)+8+'px';
    //aAs.filter="progid:DXImageTransform.Microsoft.Alpha(opacity="+100*mcList[i].alpha+")";
    aAs.filter = "alpha(opacity=" + 100 * mcList[i].alpha + ")";
    aAs.zIndex = mcList[i].zIndex;
    aAs.opacity = mcList[i].alpha;
    }
    }
    function sineCosine( a, b, c)
    {
    sa = Math.sin(a * dtr);
    ca = Math.cos(a * dtr);
    sb = Math.sin(b * dtr);
    cb = Math.cos(b * dtr);
    sc = Math.sin(c * dtr);
    cc = Math.cos(c * dtr);
    }

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