📄 令人震撼的图片展示效果五.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>6</title>
<meta http-equiv="imagetoolbar" content="no">
<style type="text/css">
html {
overflow: hidden;
}
body {
position: absolute;
margin: 0px;
padding: 0px;
background: #111;
width: 100%;
height: 100%;
}
#screen {
position: absolute;
left: 10%;
top: 10%;
width: 80%;
height: 80%;
background: #000;
}
#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 : 4, // 4x4 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;
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