以下是 流畅3D立体图片相册特效代码 的示例演示效果:
部分效果截图1:
部分效果截图2:
HTML代码(index.html):
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>流畅3D立体图片相册特效 </title>
<link href="css/zzsc.css" type="text/css" rel="stylesheet" />
<script src="js/zzsc.js"></script>
</head>
<body>
<div id="screen"></div>
<div id="bankImages"><img alt="程序员设计师联盟淘宝店" src="images/zzsc.png"> </div>
<div id="FPS"></div>
</body>
</html>
JS代码(zzsc.js):
/* ==== Easing function ==== */
var Library ={
}
;
Library.ease = function (){
this.target = 0;
this.position = 0;
this.move = function (target,speed){
this.position += (target - this.position) * speed;
}
}
var tv ={
/* ==== variables ==== */
O:[],fps:0,screen:{
}
,angle:{
x:new Library.ease(),y:new Library.ease()}
,camera:{
x:new Library.ease(),y:new Library.ease()}
,create3DHTML:function (i,x,y,z,sw,sh){
/* ==== create HTML image element ==== */
var o = document.createElement('img');
o.src = i.src;
tv.screen.obj.appendChild(o);
/* ==== 3D coordinates ==== */
o.point3D ={
x:x,y:y,z:new Library.ease(),sw:sw,sh:sh,w:i.width,h:i.height}
;
o.point3D.z.target = z;
/* ==== push object ==== */
o.point2D ={
}
;
tv.O.push(o);
/* ==== on mouse over event ==== */
o.onmouseover = function (){
if (this != tv.o){
this.point3D.z.target = tv.mouseZ;
tv.camera.x.target = this.point3D.x;
tv.camera.y.target = this.point3D.y;
if (tv.o) tv.o.point3D.z.target = 0;
tv.o = this;
}
return false;
}
/* ==== on mousedown event ==== */
o.onmousedown = function (){
if (this == tv.o){
if (this.point3D.z.target == tv.mouseZ) this.point3D.z.target = 0;
else{
tv.o = false;
this.onmouseover();
}
}
}
/* ==== main 3D function ==== */
o.animate = function (){
/* ==== 3D coordinates ==== */
var x = this.point3D.x - tv.camera.x.position;
var y = this.point3D.y - tv.camera.y.position;
this.point3D.z.move(this.point3D.z.target,this.point3D.z.target ? .15:.08);
/* ==== rotations ==== */
var xy = tv.angle.cx * y - tv.angle.sx * this.point3D.z.position;
var xz = tv.angle.sx * y + tv.angle.cx * this.point3D.z.position;
var yz = tv.angle.cy * xz - tv.angle.sy * x;
var yx = tv.angle.sy * xz + tv.angle.cy * x;
/* ==== 2D transform ==== */
var scale = tv.camera.focalLength / (tv.camera.focalLength + yz);
x = yx * scale;
y = xy * scale;
var w = Math.round(Math.max(0,this.point3D.w * scale * this.point3D.sw));
var h = Math.round(Math.max(0,this.point3D.h * scale * this.point3D.sh));
/* ==== HTML rendering ==== */
var o = this.style;
o.left = Math.round(x + tv.screen.w - w * .5) + 'px';
o.top = Math.round(y + tv.screen.h - h * .5) + 'px';
o.width = w + 'px';
o.height = h + 'px';
o.zIndex = 10000 + Math.round(scale * 1000);
}
}
,/* ==== init script ==== */
init:function (structure,FL,mouseZ,rx,ry){
this.screen.obj = document.getElementById('screen');
this.screen.obj.onselectstart = function (){
return false;
}
this.screen.obj.ondrag = function (){
return false;
}
this.mouseZ = mouseZ;
this.camera.focalLength = FL;
this.angle.rx = rx;
this.angle.ry = ry;
/* ==== create objects ==== */
var i = 0,o;
while( o = structure[i++] )this.create3DHTML(o.img,o.x,o.y,o.z,o.sw,o.sh);
/* ==== start script ==== */
this.resize();
mouse.y = this.screen.y + this.screen.h;
mouse.x = this.screen.x + this.screen.w;
/* ==== loop ==== */
setInterval(tv.run,16);
setInterval(tv.dFPS,1000);
}
,/* ==== resize window ==== */
resize:function (){
var o = tv.screen.obj;
if (o){
tv.screen.w = o.offsetWidth / 2;
tv.screen.h = o.offsetHeight / 2;
for (tv.screen.x = 0,tv.screen.y = 0;
o != null;
o = o.offsetParent){
tv.screen.x += o.offsetLeft;
tv.screen.y += o.offsetTop;
}
}
}
,/* ==== main loop ==== */
run:function (){
tv.fps++;
/* ==== motion ease ==== */
tv.angle.x.move(-(mouse.y - tv.screen.h - tv.screen.y) * tv.angle.rx,.1);
tv.angle.y.move( (mouse.x - tv.screen.w - tv.screen.x) * tv.angle.ry,.1);
tv.camera.x.move(tv.camera.x.target,.025);
tv.camera.y.move(tv.camera.y.target,.025);
/* ==== angles sin and cos ==== */
tv.angle.cx = Math.cos(tv.angle.x.position);
tv.angle.sx = Math.sin(tv.angle.x.position);
tv.angle.cy = Math.cos(tv.angle.y.position);
tv.angle.sy = Math.sin(tv.angle.y.position);
/* ==== loop through images ==== */
var i = 0,o;
while( o = tv.O[i++] ) o.animate();
}
,/* ==== trace frames per seconds ==== */
dFPS:function (){
document.getElementById('FPS').innerHTML = tv.fps + ' FPS';
tv.fps = 0;
}
}
/* ==== global mouse position ==== */
var mouse ={
x:0,y:0}
document.onmousemove = function(e){
if (window.event) e = window.event;
mouse.x = e.clientX;
mouse.y = e.clientY;
return false;
}
/* ==== starting script ==== */
onload = function(){
onresize = tv.resize;
/* ==== build grid ==== */
var img = document.getElementById('bankImages').getElementsByTagName('img');
var structure = [];
for (var i = -300;
i <= 300;
i += 120)for (var j = -300;
j <= 300;
j += 120)structure.push({
img:img[0],x:i,y:j,z:0,sw:.5,sh:.5}
);
/* ==== let's go ==== */
tv.init(structure,350,-200,.005,.0025);
}
CSS代码(zzsc.css):
@charset "utf-8";html{overflow:hidden;}
body{position:absolute;margin:0px;padding:0px;background:#fff;width:100%;height:100%;}
#screen{position:absolute;left:10%;top:10%;width:80%;height:80%;background:#fff;}
#screen img{position:absolute;cursor:pointer;width:0px;height:0px;-ms-interpolation-mode:nearest-neighbor;}
#bankImages{visibility:hidden;}
#FPS{position:absolute;right:5px;bottom:5px;font-size:10px;color:#666;font-family:verdana;}