一分钟教你在博客园中制作自己的动态云球形标签页

转载自[一分钟教你在博客园中制作自己的动态云球形标签页

](https://blog.csdn.net/u013751758/article/details/39832449)

经常看到别人的博客里面有动态的云标签页，感觉很是高大上，自己也很像弄一个。于是去找寻源码，在阿里西西页面特效中找到了云标签的源码，经过分析和解剖，弄成了符合博客园的js.

　　首先，找到博客园页面的管理界面，

　　在其中加入以下代码：

<style type="text/css">
#div1 {position:relative; width:200px; height:150px; margin: 2px auto 0; }
#div1 a {position:absolute; top:0px; left:0px; font-family: Microsoft YaHei; color:#fff; font-weight:bold; text-decoration:none; padding: 1px 2px; }
#div1 a:hover {border: 1px solid #eee; background: #000; }
#div1 .blue {color:blue;}
#div1 .red {color:red;}
#div1 .yellow {color:yellow;}
#div1 .green {color:green;}
</style>
<script type="text/javascript">

var radius = 60;

var dtr = Math.PI/180;

var d=300;
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('div1');
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].cyca+mcList[j].cz(-sa);

var rz1=mcList[j].cysa+mcList[j].czca;
var rx2=rx1cb+rz1sb;

var ry2=ry1;

var rz2=rx1(-sb)+rz1cb;
var rx3=rx2cc+ry2(-sc);

var ry3=rx2sc+ry2cc;

var rz3=rz2;
mcList[j].cx=rx3;

mcList[j].cy=ry3;

mcList[j].cz=rz3;
per=d/(d+rz3);



mcList[j].x=(howEllipticalrx3per)-(howElliptical2);

mcList[j].y=ry3per;

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+(2i-1)/max);

            theta = Math.sqrt(maxMath.PI)phi;

}

else

{

phi = Math.random()(Math.PI);

theta = Math.random()(2Math.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(12mcList[i].scale/2)+8+'px';



aA[i].style.filter="alpha(opacity="+100mcList[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>
<font face="Comic Sans MS"><strong><a href="http://weibo.com/u/3209909971/home?wvr=5&lf=reg">我的标签</a>

</strong></font><hr />

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<a href="http://www.cnblogs.com/xing901022/p/3248469.html" class="blue">CUDA</a>

</div>

代码分析

　　以上源码，就可以直接在你的博客园ID上面显示云标签了

　　那么我们分析以下，上面的代码：

　　这个部分的代码，应该是直接嵌入到body里面的，所以引用的css js都要加入标签，下面是css的代码：

<style type="text/css">
#div1 {position:relative; width:200px; height:150px; margin: 2px auto 0; }
#div1 a {position:absolute; top:0px; left:0px; font-family: Microsoft YaHei; color:#fff; font-weight:bold; text-decoration:none; padding: 1px 2px; }
#div1 a:hover {border: 1px solid #eee; background: #000; }
#div1 .blue {color:blue;}
#div1 .red {color:red;}
#div1 .yellow {color:yellow;}
#div1 .green {color:green;}
</style>

　　这里面的div是我们下面将要用到的标签内容div的id，通过这个id就可以引用到这里面的样式。

　　上面最重要的一个参数

#div1 {position:relative; width:200px; height:150px; margin: 2px auto 0; }

　　这段代码定义了云标签插件div的宽度和高度，调整适当的像素值，适应你的博客即可。

　　下面是js的代码，radius定义了云标签的半径，可以通过设置该值，调整云标签的旋转半径，也就是球形的大小

<script type="text/javascript">
var radius = 60;
var dtr = Math.PI/180;
var d=300;
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('div1');
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].cyca+mcList[j].cz(-sa);

var rz1=mcList[j].cysa+mcList[j].czca;
var rx2=rx1cb+rz1sb;

var ry2=ry1;

var rz2=rx1(-sb)+rz1cb;
var rx3=rx2cc+ry2(-sc);

var ry3=rx2sc+ry2cc;

var rz3=rz2;
mcList[j].cx=rx3;

mcList[j].cy=ry3;

mcList[j].cz=rz3;
per=d/(d+rz3);



mcList[j].x=(howEllipticalrx3per)-(howElliptical2);

mcList[j].y=ry3per;

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+(2i-1)/max);

            theta = Math.sqrt(maxMath.PI)phi;

}

else

{

phi = Math.random()(Math.PI);

theta = Math.random()(2Math.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(12mcList[i].scale/2)+8+'px';



aA[i].style.filter="alpha(opacity="+100mcList[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>

　　最后添加自己的云标签内容，即可，后面的class会调用上面css定义的样式，如果没有自己喜欢的颜色或者样式，自己定义就行了。

<div id="div1">
    <a href="http://www.cnblogs.com/xing901022/p/3694709.html"class="blue">2014</a>
    <a href="http://www.cnblogs.com/xing901022/p/3248913.html"class="red">2013下</a>
    <a href="http://www.cnblogs.com/xing901022/archive/2013/01/18/2857982.html" class="red">2013上</a>
    <a href="http://www.cnblogs.com/xing901022/archive/2012/10/19/2699162.html" class="red">2012下</a>
    <a href="http://zh.linuxvirtualserver.org/" class="green">LVS中文</a>
    <a href="http://code.taobao.org/" class="green">开源</a>
    <a href="http://www.cnblogs.com/xing901022/archive/2013/04/09/3248870.html" class="blue">反向代理</a>
    <a href="http://www.cnblogs.com/xing901022/p/3248469.html" class="blue">CUDA</a>
</div>