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很酷的用JavaScript写的3D旋转效果

2009-10-06 00:34 232 查看

<html>
<head>
<title>Rotating 3D Cube in JavaScript</title>
<style type="text/css">
body{
background:#000;
color:#FF0;
height:100%;
margin:0;
padding:0;
width:100%;
}
b{
position:absolute;
}
a{color:gold;}
a:hover{color:#FF0;}
address{
font-family:Georgia;
font-style:normal;
bottom:10px;
position:absolute;
right:10px;
text-align:right;
}
</style>
</head>
<body onmousemove="a = event.clientX / 99; b = event.clientY / 99;">

<script type="text/javascript">

var dimension = 1;
var a = 0, b = 0

var i = 27;
while (i--)
{
document.write('<b id="l' + i + '">+</b>');
}

function f()
{
i = 0;
for (x =- dimension; x <= dimension; x += dimension)
{
for (y =- dimension; y <= dimension; y += dimension)
{
for (z =- dimension; z <= dimension; z += dimension)
{
u = x;
v = y;
w = z;
u2 = u * Math.cos(a) - v * Math.sin(a);
v2 = u * Math.sin(a) + v * Math.cos(a);
w2 = w;
u = u2; v = v2; w = w2;
u2 = u;
v2 = v * Math.cos(b) - w * Math.sin(b);
w2 = v * Math.sin(b) + w * Math.cos(b);
u = u2; v = v2; w = w2;
var c = Math.round((w + 2) * 70);
if (c < 0) c = 0;
if (c > 255) c = 255;
with (document.all('l' + i).style)
{
left = 300 + u * (w + 2) * 50;
top = 300 + v * (w + 2) * 50;
color = 'rgb(' + c + ', ' + c + ', 0)';
fontSize = (w + 2) * 16 + "px";
}
i++;
}
}
}
}

setInterval('f()', 9);

</script>

<address>© <a href="http://maettig.com/">Thiemo Mättig</a>,
created 2007-09-04<br />
<a href="./">More JavaScript experiments »</a></address>

</body>
</html>

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/facepp/archive/2008/10/21/3118742.aspx

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