html_css+js标签云球形滚动特效代码

2025-11-05 01:50:05

1、新建html文档。

2、书写hmtl代码。

<a href="" class="tagc2">百度不知道<a>

</div>

html_css+js标签云球形滚动特效代码

3、书写css代码。

<style>

body { font-family: "微软雅黑", Arial, sans-serif; }

#main { border: none; background: none; }

body, ul, li, h1, h2, h3, p, form { margin: 0; padding: 0; }

body { background: #fbfbfb; color: #444; font-size: 14px; }

a { color: #444; text-decoration: none; }

a:hover { color: red; }

#tagscloud { width: 250px; height: 260px; position: relative; font-size: 12px; color: #333; margin: 20px auto 0; text-align: center; }

#tagscloud a { position: absolute; top: 0px; left: 0px; color: #333; font-family: Arial; text-decoration: none; margin: 0 10px 15px 0; line-height: 18px; text-align: center; font-size: 12px; padding: 1px 5px; display: inline-block; border-radius: 3px; }

#tagscloud a.tagc1 { background: #666; color: #fff; }

#tagscloud a.tagc2 { background: #F16E50; color: #fff; }

#tagscloud a.tagc3 { background: red; color: #fff; }

#tagscloud a.tagc4 { background: #F60; color: #fff; }

#tagscloud a.tagc5 { background: #006633; color: #fff; }

#tagscloud a:hover { color: #fff; background: #0099ff; }

</style>

html_css+js标签云球形滚动特效代码

4、书写js代码。

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<aA.length;i++)

{

oTag={};

aA[i].onmouseover = (function (obj) {

return function () {

obj.on = true;

this.style.zIndex = 9999;

this.style.color = '#fff';

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.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 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);

}

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.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);

}

</script>

html_css+js标签云球形滚动特效代码

5、代码整体结构

html_css+js标签云球形滚动特效代码

6、查看效果

html_css+js标签云球形滚动特效代码

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