链接:
WordPress plugin: WP-Cumulus Flash based tag cloud
Q&A:WP-Cumulus插件js版代码实现
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>标签</title> <!-- <script src="./jquery-latest.js"></script> --> <style> body { background-color: white; } #cloudTags { position: relative; width: 240px; height: 450px; margin: 20px auto 0; } #cloudTags a { position: absolute; top: 0px; left: 0px; font-family: Microsoft YaHei; color: #fff; font-weight: bold; text-decoration: none; padding: 3px 6px; } #cloudTags a:hover { border: 1px solid #eee; background: #000; } #cloudTags .blue { color: blue; } #cloudTags .red { color: red; } #cloudTags .yellow { color: yellow; } /*p { font: 16px Microsoft YaHei; text-align: center; color: #ba0c0c; } p a { font-size: 14px; color: #ba0c0c; } p a:hover { color: red; } */ </style> </head> <script> var radius = 100; var dtr = Math.PI/180; var d=200; var mcList = []; var active = false; var lasta = 1; var lastb = 1; var distr = true; var tspeed=10; var size=200; var mouseX=0; var mouseY=0; var howElliptical=1; var aA=null; var oDiv=null; window.onload=function () { var i=0; var oTag=null; oDiv=document.getElementById('cloudTags'); aA=oDiv.getElementsByTagName('a'); for(i=0;i<aA.length;i++) { oTag={}; oTag.offsetWidth=aA[i].offsetWidth; oTag.offsetHeight=aA[i].offsetHeight; mcList.push(oTag); } sineCosine( 0,0,0 ); positionAll(); oDiv.onmouseover=function () { active=true; }; oDiv.onmouseout=function () { active=false; }; oDiv.onmousemove=function (ev) { var oEvent=window.event || ev; mouseX=oEvent.clientX-(oDiv.offsetLeft+oDiv.offsetWidth/2); mouseY=oEvent.clientY-(oDiv.offsetTop+oDiv.offsetHeight/2); mouseX/=5; mouseY/=5; }; setInterval(update, 30); }; function update() { var a; var b; if(active) { a = (-Math.min( Math.max( -mouseY, -size ), size ) / radius ) * tspeed; b = (Math.min( Math.max( -mouseX, -size ), size ) / radius ) * tspeed; } else { a = lasta * 0.98; b = lastb * 0.98; } lasta=a; lastb=b; if(Math.abs(a)<=0.01 && Math.abs(b)<=0.01) { return; } var c=0; sineCosine(a,b,c); for(var j=0;j<mcList.length;j++) { var rx1=mcList[j].cx; var ry1=mcList[j].cy*ca+mcList[j].cz*(-sa); var rz1=mcList[j].cy*sa+mcList[j].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[j].cx=rx3; mcList[j].cy=ry3; mcList[j].cz=rz3; per=d/(d+rz3); mcList[j].x=(howElliptical*rx3*per)-(howElliptical*2); mcList[j].y=ry3*per; mcList[j].scale=per; mcList[j].alpha=per; mcList[j].alpha=(mcList[j].alpha-0.6)*(10/6); } doPosition(); depthSort(); } function depthSort() { var i=0; var aTmp=[]; for(i=0;i<aA.length;i++) { aTmp.push(aA[i]); } aTmp.sort(function (vItem1, vItem2){ if(vItem1.cz>vItem2.cz) { return -1; } else if(vItem1.cz<vItem2.cz) { return 1; } else { return 0; } }); for(i=0;i<aTmp.length;i++) { aTmp[i].style.zIndex=i; } } function positionAll(){ var phi=0; var theta=0; var max=mcList.length; var i=0; var aTmp=[]; var oFragment=document.createDocumentFragment(); //随机排序 for(i=0;i<aA.length;i++) { aTmp.push(aA[i]); } aTmp.sort(function (){ return Math.random()<0.5?1:-1; } ); for(i=0;i<aTmp.length;i++) { oFragment.appendChild(aTmp[i]); } oDiv.appendChild(oFragment); for( var i=1; i<max+1; i++){ if( distr ) { phi = Math.acos(-1+(2*i-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-1].cx = radius * Math.cos(theta)*Math.sin(phi); mcList[i-1].cy = radius * Math.sin(theta)*Math.sin(phi); mcList[i-1].cz = radius * Math.cos(phi); aA[i-1].style.left=mcList[i-1].cx+oDiv.offsetWidth/2-mcList[i-1].offsetWidth/2+'px'; aA[i-1].style.top=mcList[i-1].cy+oDiv.offsetHeight/2-mcList[i-1].offsetHeight/2+'px'; } } function doPosition() { var l=oDiv.offsetWidth/2; var t=oDiv.offsetHeight/2; for(var i=0;i<mcList.length;i++) { aA[i].style.left=mcList[i].cx+l-mcList[i].offsetWidth/2+'px'; aA[i].style.top=mcList[i].cy+t-mcList[i].offsetHeight/2+'px'; aA[i].style.fontSize=Math.ceil(12*mcList[i].scale/2)+8+'px'; aA[i].style.filter="alpha(opacity="+100*mcList[i].alpha+")"; aA[i].style.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> <body> <div id="cloudTags"> <a href="http://www.google.com">jquery特效</a> <a href="http://www.google.com" class="red">网页特效</a> <a href="http://www.google.com">网页欣赏</a> <a href="http://www.google.com"class="red">导航菜单</a> <a href="http://www.google.com" class="blue">w3c</a> <a href="http://www.google.com" class="red">网页特效</a> <a href="http://www.google.com" class="yellow">JavaScript</a> <a href="http://www.google.com">jquery</a> <a href="http://www.google.com" class="red">CSS</a> <a href="http://www.google.com">jquery特效</a> <a href="http://www.google.com">jquery特效</a> <a href="http://www.google.com" class="blue">CSS技巧</a> <a href="http://www.google.com">焦点幻灯片</a> <a href="http://www.google.com" class="blue">导航菜单</a> <a href="http://www.google.com">jquery</a> <a href="http://www.google.com" class="blue">w3c</a> <a href="http://www.google.com" class="yellow">网页特效</a> <a href="http://www.google.com" class="blue">懒人建站</a> </div> </body> </html>
Q&A:使用jquery-latest.js实现的3D标签云的js源码
1、使用jquery-latest.js实现的3D标签云的js源码下载地址
实现效果如下:
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