一段JS代码，实现3D效果 求教如何注册一个鼠标事件,键盘事件,实现功能
JS代码如下：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>3D效果title>
<style type="text/css">
html {
overflow: hidden;
}
body {
position: absolute;
margin: 0px;
padding: 0px;
background: #111;
width: 100%;
height: 100%;
}
#screen {
position: absolute;
left: 0%;
top: 0%;
width: 100%;
height: 100%;
background-image: url();
}
#screen img {
position: absolute;
cursor: pointer;
visibility: hidden;
width: 0px;
height: 0px;
}
#screen .tvover {
border: solid #876;
opacity: 1;
filter: alpha(opacity=100);
}
#screen .tvout {
border: solid #fff;
opacity: 0.7;
}
#bankImages {
display: none;
}
</style>
<script type="text/javascript">
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 : [],
screen : {},
grid : {
size : 6, // 6*6 grid
borderSize : 6, // borders size
zoomed : false
},
angle : {
x : new Library.ease(),
y : new Library.ease()
},
camera : {
x : new Library.ease(),
y : new Library.ease(),
zoom : new Library.ease(),
focalLength : 750 // camera Focal Length
},
/* ==== init script ==== */
init : function ()
{
this.screen.obj = document.getElementById('screen');
var img = document.getElementById('bankImages').getElementsByTagName('img');
this.screen.obj.onselectstart = function () { return false; }
this.screen.obj.ondrag = function () { return false; }
/* ==== create images grid ==== */
var ni = 0;
var n = (tv.grid.size / 2) - .5;
for (var y = -n; y <= n; y++)
{
for (var x = -n; x <= n; x++)
{
/* ==== create HTML image element ==== */
var o = document.createElement('img');
var i = img[(ni++) % img.length];
o.className = 'tvout';
o.src = i.src;
tv.screen.obj.appendChild(o);
/* ==== 3D coordinates ==== */
o.point3D = {
x : x,
y : y,
z : new Library.ease()
};
/* ==== push object ==== */
o.point2D = {};
o.ratioImage = 1;
tv.O.push(o);
/* ==== on mouse over event ==== */
o.onmouseover = function ()
{
if (!tv.grid.zoomed)
{
if (tv.o)
{
/* ==== mouse out ==== */
tv.o.point3D.z.target = 0;
tv.o.className = 'tvout';
}
/* ==== mouse over ==== */
this.className = 'tvover';
this.point3D.z.target = -.5;
tv.o = this;
}
}
/* ==== on click event ==== */
o.onclick = function ()
{
if (!tv.grid.zoomed)
{
/* ==== zoom in ==== */
tv.camera.x.target = this.point3D.x;
tv.camera.y.target = this.point3D.y;
tv.camera.zoom.target = tv.screen.w * 1.25;
tv.grid.zoomed = this;
} else {
if (this == tv.grid.zoomed){
/* ==== zoom out ==== */
tv.camera.x.target = 0;
tv.camera.y.target = 0;
tv.camera.zoom.target = tv.screen.w / (tv.grid.size + .1);
tv.grid.zoomed = false;
}
}
}
/* ==== 3D transform function ==== */
o.calc = function ()
{
/* ==== ease mouseover ==== */
this.point3D.z.move(this.point3D.z.target, .5);
/* ==== assign 3D coords ==== */
var x = (this.point3D.x - tv.camera.x.position) * tv.camera.zoom.position;
var y = (this.point3D.y - tv.camera.y.position) * tv.camera.zoom.position;
var z = this.point3D.z.position * tv.camera.zoom.position;
/* ==== perform rotations ==== */
var xy = tv.angle.cx * y - tv.angle.sx * z;
var xz = tv.angle.sx * y + tv.angle.cx * z;
var yz = tv.angle.cy * xz - tv.angle.sy * x;
var yx = tv.angle.sy * xz + tv.angle.cy * x;
/* ==== 2D transformation ==== */
this.point2D.scale = tv.camera.focalLength / (tv.camera.focalLength + yz);
this.point2D.x = yx * this.point2D.scale;
this.point2D.y = xy * this.point2D.scale;
this.point2D.w = Math.round(
Math.max(
0,
this.point2D.scale * tv.camera.zoom.position * .8
)
);
/* ==== image size ratio ==== */
if (this.ratioImage > 1)
this.point2D.h = Math.round(this.point2D.w / this.ratioImage);
else
{
this.point2D.h = this.point2D.w;
this.point2D.w = Math.round(this.point2D.h * this.ratioImage);
}
}
/* ==== rendering ==== */
o.draw = function ()
{
if (this.complete)
{
/* ==== paranoid image load ==== */
if (!this.loaded)
{
if (!this.img)
{
/* ==== create internal image ==== */
this.img = new Image();
this.img.src = this.src;
}
if (this.img.complete)
{
/* ==== get width / height ratio ==== */
this.style.visibility = 'visible';
this.ratioImage = this.img.width / this.img.height;
this.loaded = true;
this.img = false;
}
}
/* ==== HTML rendering ==== */
this.style.left = Math.round(
this.point2D.x * this.point2D.scale +
tv.screen.w - this.point2D.w * .5
) + 'px';
this.style.top = Math.round(
this.point2D.y * this.point2D.scale +
tv.screen.h - this.point2D.h * .5
) + 'px';
this.style.width = this.point2D.w + 'px';
this.style.height = this.point2D.h + 'px';
this.style.borderWidth = Math.round(
Math.max(
this.point2D.w,
this.point2D.h
) * tv.grid.borderSize * .01
) + 'px';
this.style.zIndex = Math.floor(this.point2D.scale * 100);
}
}
}
}
/* ==== start script ==== */
tv.resize();
mouse.y = tv.screen.y + tv.screen.h;
mouse.x = tv.screen.x + tv.screen.w;
tv.run();
},
/* ==== resize window ==== */
resize : function ()
{
var o = tv.screen.obj;
tv.screen.w = o.offsetWidth / 2;
tv.screen.h = o.offsetHeight / 2;
tv.camera.zoom.target = tv.screen.w / (tv.grid.size + .1);
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 ()
{
/* ==== motion ease ==== */
tv.angle.x.move(-(mouse.y - tv.screen.h - tv.screen.y) * .0025, .1);
tv.angle.y.move( (mouse.x - tv.screen.w - tv.screen.x) * .0025, .1);
tv.camera.x.move(tv.camera.x.target, tv.grid.zoomed ? .25 : .025);
tv.camera.y.move(tv.camera.y.target, tv.grid.zoomed ? .25 : .025);
tv.camera.zoom.move(tv.camera.zoom.target, .05);
/* ==== 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 all images ==== */
for (var i = 0, o; o = tv.O[i]; i++)
{
o.calc();
o.draw();
}
/* ==== loop ==== */
setTimeout(tv.run, 32);
}
}
/* ==== 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;
}
</script>
</head>
<body>
<div id="screen"></div>
<div id="bankImages">
<img alt="" src="images/9.jpg">
<img alt="" src="images/10.jpg">
<img alt="" src="images/11.jpg">
<img alt="" src="images/12.jpg">
<img alt="" src="images/13.jpg">
<img alt="" src="images/14.jpg">
<img alt="" src="images/15.jpg">
<img alt="" src="images/16.jpg">
<img alt="" src="images/17.jpg">
<img alt="" src="images/18.jpg">
<img alt="" src="images/19.jpg">
<img alt="" src="images/20.jpg">
<img alt="" src="images/21.jpg">
<img alt="" src="images/22.jpg">
<img alt="" src="images/23.jpg">
<img alt="" src="images/24.jpg">
<img alt="" src="images/25.jpg">
</div>
<script type="text/javascript">
/* ==== start script ==== */
onresize = tv.resize;
tv.init();
</script>
<br>
</body>
</html>
效果和这个链接差不多 http://js.alixixi.com/demo/358/
卤煮是个学生，想用这段代码实现一个功能， 上面的演示效果 点击一下图片 放大 再单击一下 缩小。
我想更改成放大之后单击一下自动弹出一个新网页比如www.163.com 按ESE时缩小图片， 卤煮新手小白一名，完全不知道如何下手啊，只好求教了。。 CSDN牛人辈出，真心求教~ 求教~
[解决办法]
o.onclick = function ()
{
if (!tv.grid.zoomed)
{
/* ==== zoom in ==== */
tv.camera.x.target = this.point3D.x;
tv.camera.y.target = this.point3D.y;
tv.camera.zoom.target = tv.screen.w * 1.25;
tv.grid.zoomed = this;
} else {
if (this == tv.grid.zoomed){
window.location.href = "www.163.com";//你想加的放大后单击跳转网页,如果是打开个新网页就得要用//window.open了.这个自己查查怎么写比较好.
/* ==== zoom out ==== */
tv.camera.x.target = 0;
tv.camera.y.target = 0;
tv.camera.zoom.target = tv.screen.w / (tv.grid.size + .1);
tv.grid.zoomed = false;
}
}
}
按Esc就自己加个onkeydown 判断是esc就出发图片缩小
tv.camera.x.target = 0;
tv.camera.y.target = 0;
tv.camera.zoom.target = tv.screen.w / (tv.grid.size + .1);
tv.grid.zoomed = false;
就这几句..
[解决办法]
自己看//========================这种地方的代码，进行修改过的，代码太长，分2部分贴
var tv = { /* ==== variables ==== */ O: [], screen: {}, grid: { size: 6, // 6*6 grid borderSize: 6, // borders size zoomed: false }, angle: { x: new Library.ease(), y: new Library.ease() }, camera: { x: new Library.ease(), y: new Library.ease(), zoom: new Library.ease(), focalLength: 750 // camera Focal Length }, //=========================================================================================== clkEvt: function (zoomed) { if (zoomed === true) { //esc键触发 /* ==== zoom out ==== */ tv.camera.x.target = 0; tv.camera.y.target = 0; tv.camera.zoom.target = tv.screen.w / (tv.grid.size + .1); tv.grid.zoomed = false; } else { if (!tv.grid.zoomed) { /* ==== zoom in ==== */ tv.camera.x.target = this.point3D.x; tv.camera.y.target = this.point3D.y; tv.camera.zoom.target = tv.screen.w * 1.25; tv.grid.zoomed = this; return false; } else if (this == tv.grid.zoomed) return true; } }, //=========================================================================================== /* ==== init script ==== */ init: function () { this.screen.obj = document.getElementById('screen'); var img = document.getElementById('bankImages').getElementsByTagName('img'); this.screen.obj.onselectstart = function () { return false; } this.screen.obj.ondrag = function () { return false; } /* ==== create images grid ==== */ var ni = 0; var n = (tv.grid.size / 2) - .5; for (var y = -n; y <= n; y++) { for (var x = -n; x <= n; x++) { //=========================================================================================== /* ==== create HTML image element ==== */ var a = document.createElement('a'), i = img[(ni++) % img.length], o = document.createElement('img'); a.href = i.parentNode.href; a.target = '_blank'; o.src = i.src; o.className = 'tvout'; a.appendChild(o); tv.screen.obj.appendChild(a) /* ==== 3D coordinates ==== */ //=========================================================================================== o.point3D = { x: x, y: y, z: new Library.ease() }; /* ==== push object ==== */ o.point2D = {}; o.ratioImage = 1; tv.O.push(o); /* ==== on mouse over event ==== */ o.onmouseover = function () { if (!tv.grid.zoomed) { if (tv.o) { /* ==== mouse out ==== */ tv.o.point3D.z.target = 0; tv.o.className = 'tvout'; } /* ==== mouse over ==== */ this.className = 'tvover'; this.point3D.z.target = -.5; tv.o = this; } } /* ==== on click event ==== */ o.onclick = tv.clkEvt; //=========================================================================================== /* ==== 3D transform function ==== */ o.calc = function () { /* ==== ease mouseover ==== */ this.point3D.z.move(this.point3D.z.target, .5); /* ==== assign 3D coords ==== */ var x = (this.point3D.x - tv.camera.x.position) * tv.camera.zoom.position; var y = (this.point3D.y - tv.camera.y.position) * tv.camera.zoom.position; var z = this.point3D.z.position * tv.camera.zoom.position; /* ==== perform rotations ==== */ var xy = tv.angle.cx * y - tv.angle.sx * z; var xz = tv.angle.sx * y + tv.angle.cx * z; var yz = tv.angle.cy * xz - tv.angle.sy * x; var yx = tv.angle.sy * xz + tv.angle.cy * x; /* ==== 2D transformation ==== */ this.point2D.scale = tv.camera.focalLength / (tv.camera.focalLength + yz); this.point2D.x = yx * this.point2D.scale; this.point2D.y = xy * this.point2D.scale; this.point2D.w = Math.round(Math.max(0,this.point2D.scale * tv.camera.zoom.position * .8)); /* ==== image size ratio ==== */ if (this.ratioImage > 1) this.point2D.h = Math.round(this.point2D.w / this.ratioImage); else { this.point2D.h = this.point2D.w; this.point2D.w = Math.round(this.point2D.h * this.ratioImage); } } /* ==== rendering ==== */ o.draw = function () { if (this.complete) { /* ==== paranoid image load ==== */ if (!this.loaded) { if (!this.img) { /* ==== create internal image ==== */ this.img = new Image(); this.img.src = this.src; } if (this.img.complete) { /* ==== get width / height ratio ==== */ this.style.visibility = 'visible'; this.ratioImage = this.img.width / this.img.height; this.loaded = true; this.img = false; } } /* ==== HTML rendering ==== */ this.style.left = Math.round(this.point2D.x * this.point2D.scale +tv.screen.w - this.point2D.w * .5) + 'px'; this.style.top = Math.round(this.point2D.y * this.point2D.scale +tv.screen.h - this.point2D.h * .5) + 'px'; this.style.width = this.point2D.w + 'px'; this.style.height = this.point2D.h + 'px'; this.style.borderWidth = Math.round(Math.max(this.point2D.w,this.point2D.h) * tv.grid.borderSize * .01) + 'px'; this.style.zIndex = Math.floor(this.point2D.scale * 100); } } } } /* ==== start script ==== */ tv.resize(); mouse.y = tv.screen.y + tv.screen.h; mouse.x = tv.screen.x + tv.screen.w; tv.run(); }, /* ==== resize window ==== */ resize: function () { var o = tv.screen.obj; tv.screen.w = o.offsetWidth / 2; tv.screen.h = o.offsetHeight / 2; tv.camera.zoom.target = tv.screen.w / (tv.grid.size + .1); 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 () { /* ==== motion ease ==== */ tv.angle.x.move(-(mouse.y - tv.screen.h - tv.screen.y) * .0025, .1); tv.angle.y.move((mouse.x - tv.screen.w - tv.screen.x) * .0025, .1); tv.camera.x.move(tv.camera.x.target, tv.grid.zoomed ? .25 : .025); tv.camera.y.move(tv.camera.y.target, tv.grid.zoomed ? .25 : .025); tv.camera.zoom.move(tv.camera.zoom.target, .05); /* ==== 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 all images ==== */ for (var i = 0, o; o = tv.O[i]; i++) { o.calc(); o.draw(); } /* ==== loop ==== */ setTimeout(tv.run, 32); } } /* ==== 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; } //=========================================================================================== document.onkeydown = function (e) { e = e || event; if (e.keyCode === 27) tv.clkEvt(!!tv.grid.zoomed); }