<!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>漂亮的3D相片展示效果 </title>
<meta http-equiv="imagetoolbar" content="no">
<style type="text/css">
html {
overflow: hidden;
}
body {
position: absolute;
margin: 0px;
padding: 0px;
background: #eee;
width: 100%;
height: 100%;
color: #fff;
font-family: arial;
font-size: 0.8em;
}
#screen {
position: absolute;
width: 100%;
height: 100%;
background: #000;
overflow: hidden;
}
#screen img, canvas {
position: absolute;
left: -9999px;
cursor: pointer;
image-rendering: optimizeSpeed;
}
#screen .href {
border: #FFF dotted 1px;
}
#screen .fog {
position: absolute;
background: #fff;
opacity: 0.1;
filter: alpha(opacity=10);
}
#command {
position:absolute;
left: 1em;
top: 1em;
width: 130px;
z-index: 30000;
background:#000;
border: #000 solid 1em;
}
#bar {
position:relative;
left: 1em;
top: 1em;
height: 160px;
}
#bar .button {
position: absolute;
background: #222;
width: 20px;
height: 20px;
cursor: pointer;
}
#bar .loaded {
background: #666;
}
#bar .viewed {
background: #fff;
}
#bar .selected {
background: #f00;
}
#urlInfo {
position: absolute;
background: url(images/r.gif) no-repeat 0 4px;
visibility: hidden;
z-index: 30000;
padding-left: 12px;
cursor: pointer;
}
</style>
<script type="text/javascript">
// =============================================================
// ===== 3D gallery experiment =====
// script written by Gerard Ferrandez - April 5, 2010
// http://www.dhteumeuleu.com
// use under a CC-BY-NC license
// -------------------------------------------------------------
// update: April 17 : added hyperlinks, tweaked z-index
// =============================================================
var m3D = function () {
/* ---- private vars ---- */
var diapo = [],
imb,
scr,
bar,
selected,
urlInfo,
imagesPath = "images/",
camera = {x:0, y:0, z:-650, s:0, fov: 500},
nw = 0,
nh = 0;
/* ==== camera tween methods ==== */
camera.setTarget = function (c0, t1, p) {
if (Math.abs(t1 - c0) > .1) {
camera.s = 1;
camera.p = 0;
camera.d = t1 - c0;
if (p) {
camera.d *= 2;
camera.p = 9;
}
}
}
camera.tween = function (v) {
if (camera.s != 0) {
camera.p += camera.s;
camera[v] += camera.d * camera.p * .01;
if (camera.p == 10) camera.s = -1;
else if (camera.p == 0) camera.s = 0;
}
return camera.s;
}
/* ==== diapo constructor ==== */
var Diapo = function (n, img, x, y, z) {
if (img) {
this.url = img.url;
this.title = img.title;
this.color = img.color;
this.isLoaded = false;
if (document.createElement("canvas").getContext) {
/* ---- using canvas in place of images (performance trick) ---- */
this.srcImg = new Image();
this.srcImg.src = imagesPath + img.src;
this.img = document.createElement("canvas");
this.canvas = true;
scr.appendChild(this.img);
} else {
/* ---- normal image ---- */
this.img = document.createElement('img');
this.img.src = imagesPath + img.src;
scr.appendChild(this.img);
}
/* ---- on click event ---- */
this.img.onclick = function () {
if (camera.s) return;
if (this.diapo.isLoaded) {
if (this.diapo.urlActive) {
/* ---- jump hyperlink ---- */
top.location.href = this.diapo.url;
} else {
/* ---- target positions ---- */
camera.tz = this.diapo.z - camera.fov;
camera.tx = this.diapo.x;
camera.ty = this.diapo.y;
/* ---- disable previously selected img ---- */
if (selected) {
selected.but.className = "button viewed";
selected.img.className = "";
selected.img.style.cursor = "pointer";
selected.urlActive = false;
urlInfo.style.visibility = "hidden";
}
/* ---- select current img ---- */
this.diapo.but.className = "button selected";
interpolation(false);
selected = this.diapo;
}
}
}
/* ---- command bar buttons ---- */
this.but = document.createElement('div');
this.but.className = "button";
bar.appendChild(this.but);
this.but.diapo = this;
this.but.style.left = Math.round((this.but.offsetWidth * 1.2) * (n % 4)) + 'px';
this.but.style.top = Math.round((this.but.offsetHeight * 1.2) * Math.floor(n / 4)) + 'px';
this.but.onclick = this.img.onclick;
imb = this.img;
this.img.diapo = this;
this.zi = 25000;
} else {
/* ---- transparent div ---- */
this.img = document.createElement('div');
this.isLoaded = true;
this.img.className = "fog";
scr.appendChild(this.img);
this.w = 300;
this.h = 300;
this.zi = 15000;
}
/* ---- object variables ---- */
this.x = x;
this.y = y;
this.z = z;
this.css = this.img.style;
}
/* ==== main 3D animation ==== */
Diapo.prototype.anim = function () {
if (this.isLoaded) {
/* ---- 3D to 2D projection ---- */
var x = this.x - camera.x;
var y = this.y - camera.y;
var z = this.z - camera.z;
if (z < 20) z += 5000;
var p = camera.fov / z;
var w = this.w * p;
var h = this.h * p;
/* ---- HTML rendering ---- */
this.css.left = Math.round(nw + x * p - w * .5) + 'px';
this.css.top = Math.round(nh + y * p - h * .5) + 'px';
this.css.width = Math.round(w) + 'px';
this.css.height = Math.round(h) + 'px';
this.css.zIndex = this.zi - Math.round(z);
} else {
/* ---- image is loaded? ---- */
this.isLoaded = this.loading();
}
}
/* ==== onload initialization ==== */
Diapo.prototype.loading = function () {
if ((this.canvas && this.srcImg.complete) || this.img.complete) {
if (this.canvas) {
/* ---- canvas version ---- */
this.w = this.srcImg.width;
this.h = this.srcImg.height;
this.img.width = this.w;
this.img.height = this.h;
var context = this.img.getContext("2d");
context.drawImage(this.srcImg, 0, 0, this.w, this.h);
} else {
/* ---- plain image version ---- */
this.w = this.img.width;
this.h = this.img.height;
}
/* ---- button loaded ---- */
this.but.className += " loaded";
return true;
}
return false;
}
////////////////////////////////////////////////////////////////////////////
/* ==== screen dimensions ==== */
var resize = function () {
nw = scr.offsetWidth * .5;
nh = scr.offsetHeight * .5;
}
/* ==== disable interpolation during animation ==== */
var interpolation = function (bicubic) {
var i = 0, o;
while( o = diapo[i++] ) {
if (o.but) {
o.css.msInterpolationMode = bicubic ? 'bicubic' : 'nearest-neighbor'; // makes IE8 happy
o.css.imageRendering = bicubic ? 'optimizeQuality' : 'optimizeSpeed'; // does not really work...
}
}
}
/* ==== init script ==== */
var init = function (data) {
/* ---- containers ---- */
scr = document.getElementById("screen");
bar = document.getElementById("bar");
urlInfo = document.getElementById("urlInfo");
resize();
/* ---- loading images ---- */
var i = 0,
o,
n = data.length;
while( o = data[i++] ) {
/* ---- images ---- */
var x = 1000 * ((i % 4) - 1.5);
var y = Math.round(Math.random() * 4000) - 2000;
var z = i * (5000 / n);
diapo.push( new Diapo