js实现三维立体照片墙点击放大效果代码-html代码-BFW代码库

代码语言：html

代码描述：js实现三维立体照片墙点击放大效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />


<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(data:image/gif;base64,R0lGODlhCQAJAIAAAP8AAP///yH5BAAAAP8ALAAAAAAJAAkAAAIMhI+poRbc3oKJtpsKADs=) no-repeat 0 4px;

		visibility: hidden;

		z-index: 30000;

		padding-left: 12px;

		cursor: pointer;

	}

</style>



<script type="text/javascript">



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 =  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.image.........完整代码请登录后点击上方下载按钮下载查看