一、图片3D展览效果
上传图片的大小有限制,录制的GIF图展示效果不是很好
录屏的效果见链接:https://www.bilibili.com/video/BV1Bi4y1E7wk/
二、代码实现
1. HTML代码- <!DOCTYPE HTML>
- <html>
- <head>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
- <meta name="HandheldFriendly" content="true">
- <meta name="description" content="图片3D展览屋">
- <meta name="keywords" content="canvas,3D_picture,perspective,texturing,gallery">
- <link href="res/slider-wb.css" rel="stylesheet">
- <title>图片3D展览屋</title>
- <style>
- html
- {
- overflow:visible;
- -ms-touch-action: none;
- -ms-content-zooming: none;
- }
- body
- {
- position: absolute;
- margin: 0px;
- padding: 0px;
- background: #fff;
- width: 100%;
- height: 100%;
- }
- #canvas
- {
- position: absolute;
- width: 100%;
- height: 100%;
- background: #fff;
- }
- </style>
- <script type="text/javascript" src="res/ge1doot.js"></script>
- <script type="text/javascript">
- "use strict";
- (function () {
- /* ==== definitions ==== */
- var diapo = [], layers = [], ctx, pointer, scr, camera, light, fps = 0, quality = [1, 2],
- // ---- poly constructor ----
- Poly = function (parent, face) {
- this.parent = parent;
- this.ctx = ctx;
- this.color = face.fill || false;
- this.points = [];
- if (!face.img) {
- // ---- create points ----
- for (var i = 0; i < 4; i++) {
- this.points[i] = new ge1doot.transform3D.Point(
- parent.pc.x + (face.x[i] * parent.normalZ) + (face.z[i] * parent.normalX),
- parent.pc.y + face.y[i],
- parent.pc.z + (face.x[i] * parent.normalX) + (-face.z[i] * parent.normalZ)
- );
- }
- this.points[3].next = false;
- }
- },
- // ---- diapo constructor ----
- Diapo = function (path, img, structure) {
- // ---- create image ----
- this.img = new ge1doot.transform3D.Image(
- this, path + img.img, 1, {
- isLoaded: function (img) {
- img.parent.isLoaded = true;
- img.parent.loaded(img);
- }
- }
- );
- this.visible = false;
- this.normalX = img.nx;
- this.normalZ = img.nz;
- // ---- point center ----
- this.pc = new ge1doot.transform3D.Point(img.x, img.y, img.z);
- // ---- target positions ----
- this.tx = img.x + (img.nx * Math.sqrt(camera.focalLength) * 20);
- this.tz = img.z - (img.nz * Math.sqrt(camera.focalLength) * 20);
- // ---- create polygons ----
- this.poly = [];
- for (var i = -1, p; p = structure[++i]; ) {
- layers[i] = (p.img === true ? 1 : 2);
- this.poly.push(
- new Poly(this, p)
- );
- }
- },
- // ---- init section ----
- init = function (json) {
- // draw poly primitive
- Poly.prototype.drawPoly = ge1doot.transform3D.drawPoly;
- // ---- init screen ----
- scr = new ge1doot.Screen({
- container: "canvas"
- });
- ctx = scr.ctx;
- scr.resize();
- // ---- init pointer ----
- pointer = new ge1doot.Pointer({
- tap: function () {
- if (camera.over) {
- if (camera.over === camera.target.elem) {
- // ---- return to the center ----
- camera.target.x = 0;
- camera.target.z = 0;
- camera.target.elem = false;
- } else {
- // ---- goto diapo ----
- camera.target.elem = camera.over;
- camera.target.x = camera.over.tx;
- camera.target.z = camera.over.tz;
- // ---- adapt tesselation level to distance ----
- for (var i = 0, d; d = diapo[i++]; ) {
- var dx = camera.target.x - d.pc.x;
- var dz = camera.target.z - d.pc.z;
- var dist = Math.sqrt(dx * dx + dz * dz);
- var lev = (dist > 1500) ? quality[0] : quality[1];
- d.img.setLevel(lev);
- }
- }
- }
- }
- });
- // ---- init camera ----
- camera = new ge1doot.transform3D.Camera({
- focalLength: Math.sqrt(scr.width) * 10,
- easeTranslation: 0.025,
- easeRotation: 0.06,
- disableRz: true
- }, {
- move: function () {
- this.over = false;
- // ---- rotation ----
- if (pointer.isDraging) {
- this.target.elem = false;
- this.target.ry = -pointer.Xi * 0.01;
- this.target.rx = (pointer.Y - scr.height * 0.5) / (scr.height * 0.5);
- } else {
- if (this.target.elem) {
- this.target.ry = Math.atan2(
- this.target.elem.pc.x - this.x,
- this.target.elem.pc.z - this.z
- );
- }
- }
- this.target.rx *= 0.9;
- }
- });
- camera.z = -10000;
- camera.py = 0;
- // ---- create images ----
- for (var i = 0, img; img = json.imgdata[i++]; ) {
- diapo.push(
- new Diapo(
- json.options.imagesPath,
- img,
- json.structure
- )
- );
- }
- // ---- start engine ---- >>>
- setInterval(function () {
- quality = (fps > 50) ? [2, 3] : [1, 2];
- fps = 0;
- }, 1000);
- run();
- },
- // ---- main loop ----
- run = function () {
- // ---- clear screen ----
- ctx.clearRect(0, 0, scr.width, scr.height);
- // ---- camera ----
- camera.move();
- // ---- draw layers ----
- for (var k = -1, l; l = layers[++k]; ) {
- light = false;
- for (var i = 0, d; d = diapo[i++]; ) {
- (l === 1 && d.draw()) ||
- (d.visible && d.poly[k].draw());
- }
- }
- // ---- cursor ----
- if (camera.over && !pointer.isDraging) {
- scr.setCursor("pointer");
- } else {
- scr.setCursor("move");
- }
- // ---- loop ----
- fps++;
- requestAnimFrame(run);
- };
- /* ==== prototypes ==== */
- Poly.prototype.draw = function () {
- // ---- color light ----
- var c = this.color;
- if (c.light || !light) {
- var s = c.light ? this.parent.light : 1;
- // ---- rgba color ----
- light = "rgba(" +
- Math.round(c.r * s) + "," +
- Math.round(c.g * s) + "," +
- Math.round(c.b * s) + "," + (c.a || 1) + ")";
- ctx.fillStyle = light;
- }
- // ---- paint poly ----
- if (!c.light || this.parent.light < 1) {
- // ---- projection ----
- for (
- var i = 0;
- this.points[i++].projection();
- );
- this.drawPoly();
- ctx.fill();
- }
- }
- /* ==== image onload ==== */
- Diapo.prototype.loaded = function (img) {
- // ---- create points ----
- var d = [-1, 1, 1, -1, 1, 1, -1, -1];
- var w = img.texture.width * 0.5;
- var h = img.texture.height * 0.5;
- for (var i = 0; i < 4; i++) {
- img.points[i] = new ge1doot.transform3D.Point(
- this.pc.x + (w * this.normalZ * d[i]),
- this.pc.y + (h * d[i + 4]),
- this.pc.z + (w * this.normalX * d[i])
- );
- }
- }
- /* ==== images draw ==== */
- Diapo.prototype.draw = function () {
- // ---- visibility ----
- this.pc.projection();
- if (this.pc.Z > -(camera.focalLength >> 1) && this.img.transform3D(true)) {
- // ---- light ----
- this.light = 0.5 + Math.abs(this.normalZ * camera.cosY - this.normalX * camera.sinY) * 0.6;
- // ---- draw image ----
- this.visible = true;
- this.img.draw();
- // ---- test pointer inside ----
- if (pointer.hasMoved || pointer.isDown) {
- if (
- this.img.isPointerInside(
- pointer.X,
- pointer.Y
- )
- ) camera.over = this;
- }
- } else this.visible = false;
- return true;
- }
- return {
- // --- load data ----
- load: function (data) {
- window.addEventListener('load', function () {
- ge1doot.loadJS(
- "res/imageTransform3D.js",
- init, data
- );
- }, false);
- }
- }
- })().load({
- imgdata: [
- // north
- {img: 'imgs/001.jpg', x: -1000, y: 0, z: 1500, nx: 0, nz: 1 },
- { img: 'imgs/002.jpg', x: 0, y: 0, z: 1500, nx: 0, nz: 1 },
- { img: 'imgs/003.jpg', x: 1000, y: 0, z: 1500, nx: 0, nz: 1 },
- // east
- {img: 'imgs/004.jpg', x: 1500, y: 0, z: 1000, nx: -1, nz: 0 },
- { img: 'imgs/005.jpg', x: 1500, y: 0, z: 0, nx: -1, nz: 0 },
- { img: 'imgs/006.jpg', x: 1500, y: 0, z: -1000, nx: -1, nz: 0 },
- // south
- {img: 'imgs/007.jpg', x: 1000, y: 0, z: -1500, nx: 0, nz: -1 },
- { img: 'imgs/008.jpg', x: 0, y: 0, z: -1500, nx: 0, nz: -1 },
- { img: 'imgs/009.jpg', x: -1000, y: 0, z: -1500, nx: 0, nz: -1 },
- // west
- {img: 'imgs/010.jpg', x: -1500, y: 0, z: -1000, nx: 1, nz: 0 },
- { img: 'imgs/011.jpg', x: -1500, y: 0, z: 0, nx: 1, nz: 0 },
- { img: 'imgs/012.jpg', x: -1500, y: 0, z: 1000, nx: 1, nz: 0 }
- ],
- structure: [
- {
- // wall
- fill: { r: 255, g: 255, b: 255, light: 1 },
- x: [-1001, -490, -490, -1001],
- z: [-500, -500, -500, -500],
- y: [500, 500, -500, -500]
- }, {
- // wall
- fill: { r: 255, g: 255, b: 255, light: 1 },
- x: [-501, 2, 2, -500],
- z: [-500, -500, -500, -500],
- y: [500, 500, -500, -500]
- }, {
- // wall
- fill: { r: 255, g: 255, b: 255, light: 1 },
- x: [0, 502, 502, 0],
- z: [-500, -500, -500, -500],
- y: [500, 500, -500, -500]
- }, {
- // wall
- fill: { r: 255, g: 255, b: 255, light: 1 },
- x: [490, 1002, 1002, 490],
- z: [-500, -500, -500, -500],
- y: [500, 500, -500, -500]
- }, {
- // shadow
- fill: { r: 0, g: 0, b: 0, a: 0.2 },
- x: [-420, 420, 420, -420],
- z: [-500, -500, -500, -500],
- y: [150, 150, -320, -320]
- }, {
- // shadow
- fill: { r: 0, g: 0, b: 0, a: 0.2 },
- x: [-20, 20, 20, -20],
- z: [-500, -500, -500, -500],
- y: [250, 250, 150, 150]
- }, {
- // shadow
- fill: { r: 0, g: 0, b: 0, a: 0.2 },
- x: [-20, 20, 20, -20],
- z: [-500, -500, -500, -500],
- y: [-320, -320, -500, -500]
- }, {
- // shadow
- fill: { r: 0, g: 0, b: 0, a: 0.2 },
- x: [-20, 20, 10, -10],
- z: [-500, -500, -100, -100],
- y: [-500, -500, -500, -500]
- }, {
- // base
- fill: { r: 32, g: 32, b: 32 },
- x: [-50, 50, 50, -50],
- z: [-150, -150, -50, -50],
- y: [-500, -500, -500, -500]
- }, {
- // support
- fill: { r: 16, g: 16, b: 16 },
- x: [-10, 10, 10, -10],
- z: [-100, -100, -100, -100],
- y: [300, 300, -500, -500]
- }, {
- // frame
- fill: { r: 255, g: 255, b: 255 },
- x: [-320, -320, -320, -320],
- z: [0, -20, -20, 0],
- y: [-190, -190, 190, 190]
- }, {
- // frame
- fill: { r: 255, g: 255, b: 255 },
- x: [320, 320, 320, 320],
- z: [0, -20, -20, 0],
- y: [-190, -190, 190, 190]
- },
- { img: true },
- {
- // ceilingLight
- fill: { r: 255, g: 128, b: 0 },
- x: [-50, 50, 50, -50],
- z: [450, 450, 550, 550],
- y: [500, 500, 500, 500]
- }, {
- // groundLight
- fill: { r: 255, g: 128, b: 0 },
- x: [-50, 50, 50, -50],
- z: [450, 450, 550, 550],
- y: [-500, -500, -500, -500]
- }
- ],
- options: {
- imagesPath: ""
- }
- });
- </script>
- </head>
- <body>
- <a href="https://blog.csdn.net/fyfugoyfa/article/details/108845194" target="_blank">CSDN文章</a><br />
- <canvas id="canvas">建议用谷歌浏览器打开</canvas>
- </body>
- </html>
复制代码 2. CSS代码- #icon {
- background: rgb(255, 144, 0); border-radius: 6px 0px 0px; transition:0.6s ease-in-out; left: 65px; top: 6px; width: 40px; height: 40px; overflow: hidden; position: relative; cursor: pointer; -moz-transition: all 0.6s ease-in-out 0s; -webkit-transition: all 0.6s ease-in-out 0s; -o-transition: all 0.6s ease-in-out 0s;
- }
- #icon div {
- background: none; position: absolute;
- }
- #icon div:nth-child(1) {
- border-width: 7px 0px 7px 8px; border-style: solid; border-color: transparent rgb(255, 255, 255); left: 20px; top: 50%; width: 0px; height: 0px; margin-top: -7px; position: absolute;
- }
- #icon div:nth-child(2) {
- background: rgb(255, 255, 255); left: 12px; top: 50%; width: 8px; height: 6px; margin-top: -3px; position: absolute;
- }
- #nav {
- top: 10px; width: 100px; height: 0px; position: absolute; -ms-user-select: none; -webkit-user-select: none; -moz-user-select: none;
- }
- #nav-switch {
- display: none;
- }
- #nav .label {
- display: block; cursor: pointer;
- }
- #nav .container {
- transition:left 0.3s ease-in-out; left: -100px; width: 100%; position: absolute; -moz-transition: left 0.3s ease-in-out 0s; -webkit-transition: left 0.3s ease-in-out 0s; -o-transition: left 0.3s ease-in-out 0s;
- }
- #nav .container > div {
- padding: 0px; width: 50%; float: left;
- }
- #nav .container .nav-on {
- color: rgb(51, 51, 51); padding-left: 0px;
- }
- #nav .container .nav-off {
- width: 40px; height: 40px; padding-right: 10px;
- }
- :checked#nav-switch + .label .container {
- left: 10px;
- }
- :checked#nav-switch + .label #icon {
- background: rgb(0, 101, 203); border-radius: 0px 0px 6px; transform: rotate(-180deg); -webkit-transform: rotate(-180deg); -moz-transform: rotate(-180deg); -o-transform: rotate(-180deg);
- }
- .title {
- margin: 0px; padding: 0px; left: 170px; top: 2px; height: 40px; color: rgb(51, 51, 51); line-height: 40px; font-family: "Segoe UI Light", "Segoe UI", Frutiger, "Frutiger Linotype", "Dejavu Sans", "Helvetica Neue", Arial, sans-serif; font-size: 24px; font-weight: bold; white-space: nowrap; position: absolute; -ms-user-select: none; -webkit-user-select: none; -moz-user-select: none; -o-user-select: none; user-select: none;
- }
- .menu {
- margin: 0px; padding: 0px; left: 0px; top: 6px; color: rgb(51, 51, 51); font-family: "Segoe UI Light", "Segoe UI", Frutiger, "Frutiger Linotype", "Dejavu Sans", "Helvetica Neue", Arial, sans-serif; font-size: 1em; font-weight: lighter; list-style-type: none; position: relative; cursor: pointer;
- }
- .menu li {
- list-style: none; width: 100px; height: 40px; border-right-color: rgb(221, 221, 221); border-right-width: 1px; border-right-style: solid; position: relative; cursor: pointer;
- }
- .menu a {
- color: rgb(51, 51, 51); line-height: 40px; padding-left: 40px; text-decoration: none; display: block; position: relative;
- }
- .menu li a:hover {
- background: rgb(255, 144, 0);
- }
- .menu li a:focus {
- background: rgb(255, 144, 0);
- }
- .menu li a:active {
- background: rgb(255, 144, 0);
- }
- #nav li::before {
- top: 50%; margin-left: 10px; position: absolute; content: "";
- }
- #nav li::after {
- top: 50%; margin-left: 10px; position: absolute; content: "";
- }
- #nav li a::before {
- top: 50%; margin-left: 10px; position: absolute; content: "";
- }
- #nav li a::after {
- top: 50%; margin-left: 10px; position: absolute; content: "";
- }
- #nav .home a::before {
- border-width: 8px 7px; border-style: solid; border-color: transparent transparent rgb(51, 51, 51); left: 2px; margin-top: -16px;
- }
- #nav .home a::after {
- border-width: 3px 4px 0px; border-style: solid; border-color: rgb(51, 51, 51) rgb(51, 51, 51) transparent; left: 4px; width: 2px; height: 4px; margin-top: 0px;
- }
- #nav .arrow a::before {
- border-width: 7px 0px 7px 8px; border-style: solid; border-color: transparent rgb(51, 51, 51); left: 8px; margin-top: -7px;
- }
- #nav .arrow a::after {
- background: rgb(51, 51, 51); left: 0px; width: 8px; height: 6px; margin-top: -3px;
- }
- #nav .back.arrow a::before {
- border-width: 7px 8px 7px 0px; left: 0px;
- }
- #nav .back.arrow a::after {
- left: 8px;
- }
- #nav .list a::before {
- background: none; border-width: 6px 0px; border-style: double; border-color: rgb(51, 51, 51); left: 5px; top: 14px; width: 12px; height: 2px;
- }
- #nav .list a::after {
- background: none; border-width: 6px 0px; border-style: double; border-color: rgb(51, 51, 51); left: 1px; top: 14px; width: 2px; height: 2px;
- }
复制代码 3. JavaScript代码- // ===== ge1doot global ===== js文件1
- var ge1doot = ge1doot || {
- json: null,
- screen: null,
- pointer: null,
- camera: null,
- loadJS: function (url, callback, data) {
- if (typeof url == "string") url = [url];
- var load = function (src) {
- var script = document.createElement("script");
- if (callback) {
- if (script.readyState){
- script.onreadystatechange = function () {
- if (script.readyState == "loaded" || script.readyState == "complete"){
- script.onreadystatechange = null;
- if (--n === 0) callback(data || false);
- }
- }
- } else {
- script.onload = function() {
- if (--n === 0) callback(data || false);
- }
- }
- }
- script.src = src;
- document.getElementsByTagName("head")[0].appendChild(script);
- }
- for (var i = 0, n = url.length; i < n; i++) load(url[i]);
- }
- }
- // ===== html/canvas container =====
- ge1doot.Screen = function (setup) {
- ge1doot.screen = this;
- this.elem = document.getElementById(setup.container) || setup.container;
- this.ctx = this.elem.tagName == "CANVAS" ? this.elem.getContext("2d") : false;
- this.style = this.elem.style;
- this.left = 0;
- this.top = 0;
- this.width = 0;
- this.height = 0;
- this.cursor = "default";
- this.setup = setup;
- this.resize = function () {
- var o = this.elem;
- this.width = o.offsetWidth;
- this.height = o.offsetHeight;
- for (this.left = 0, this.top = 0; o != null; o = o.offsetParent) {
- this.left += o.offsetLeft;
- this.top += o.offsetTop;
- }
- if (this.ctx) {
- this.elem.width = this.width;
- this.elem.height = this.height;
- }
- this.setup.resize && this.setup.resize();
- }
- this.setCursor = function (type) {
- if (type !== this.cursor && 'ontouchstart' in window === false) {
- this.cursor = type;
- this.style.cursor = type;
- }
- }
- window.addEventListener('resize', function () {
- ge1doot.screen.resize();
- }, false);
- !this.setup.resize && this.resize();
- }
- // ==== unified touch events handler ====
- ge1doot.Pointer = function (setup) {
- ge1doot.pointer = this;
- var self = this;
- var body = document.body;
- var html = document.documentElement;
- this.setup = setup;
- this.screen = ge1doot.screen;
- this.elem = this.screen.elem;
- this.X = 0;
- this.Y = 0;
- this.Xi = 0;
- this.Yi = 0;
- this.bXi = 0;
- this.bYi = 0;
- this.Xr = 0;
- this.Yr = 0;
- this.startX = 0;
- this.startY = 0;
- this.scale = 0;
- this.wheelDelta = 0;
- this.isDraging = false;
- this.hasMoved = false;
- this.isDown = false;
- this.evt = false;
- var sX = 0;
- var sY = 0;
- // prevent default behavior
- if (setup.tap) this.elem.onclick = function () { return false; }
- if (!setup.documentMove) {
- document.ontouchmove = function(e) { e.preventDefault(); }
- }
- document.addEventListener("MSHoldVisual", function(e) { e.preventDefault(); }, false);
- if (typeof this.elem.style.msTouchAction != 'undefined') this.elem.style.msTouchAction = "none";
- this.pointerDown = function (e) {
- if (!this.isDown) {
- if (this.elem.setCapture) this.elem.setCapture();
- this.isDraging = false;
- this.hasMoved = false;
- this.isDown = true;
- this.evt = e;
- this.Xr = (e.clientX !== undefined ? e.clientX : e.touches[0].clientX);
- this.Yr = (e.clientY !== undefined ? e.clientY : e.touches[0].clientY);
- this.X = sX = this.Xr - this.screen.left;
- this.Y = sY = this.Yr - this.screen.top + ((html && html.scrollTop) || body.scrollTop);
- this.setup.down && this.setup.down(e);
- }
- }
- this.pointerMove = function(e) {
- this.Xr = (e.clientX !== undefined ? e.clientX : e.touches[0].clientX);
- this.Yr = (e.clientY !== undefined ? e.clientY : e.touches[0].clientY);
- this.X = this.Xr - this.screen.left;
- this.Y = this.Yr - this.screen.top + ((html && html.scrollTop) || body.scrollTop);
- if (this.isDown) {
- this.Xi = this.bXi + (this.X - sX);
- this.Yi = this.bYi - (this.Y - sY);
- }
- if (Math.abs(this.X - sX) > 11 || Math.abs(this.Y - sY) > 11) {
- this.hasMoved = true;
- if (this.isDown) {
- if (!this.isDraging) {
- this.startX = sX;
- this.startY = sY;
- this.setup.startDrag && this.setup.startDrag(e);
- this.isDraging = true;
- } else {
- this.setup.drag && this.setup.drag(e);
- }
- } else {
- sX = this.X;
- sY = this.Y;
- }
- }
- this.setup.move && this.setup.move(e);
- }
- this.pointerUp = function(e) {
- this.bXi = this.Xi;
- this.bYi = this.Yi;
- if (!this.hasMoved) {
- this.X = sX;
- this.Y = sY;
- this.setup.tap && this.setup.tap(this.evt);
- } else {
- this.setup.up && this.setup.up(this.evt);
- }
- this.isDraging = false;
- this.isDown = false;
- this.hasMoved = false;
- this.setup.up && this.setup.up(this.evt);
- if (this.elem.releaseCapture) this.elem.releaseCapture();
- this.evt = false;
- }
- this.pointerCancel = function(e) {
- if (this.elem.releaseCapture) this.elem.releaseCapture();
- this.isDraging = false;
- this.hasMoved = false;
- this.isDown = false;
- this.bXi = this.Xi;
- this.bYi = this.Yi;
- sX = 0;
- sY = 0;
- }
- if ('ontouchstart' in window) {
- this.elem.ontouchstart = function (e) { self.pointerDown(e); return false; }
- this.elem.ontouchmove = function (e) { self.pointerMove(e); return false; }
- this.elem.ontouchend = function (e) { self.pointerUp(e); return false; }
- this.elem.ontouchcancel = function (e) { self.pointerCancel(e); return false;}
- }
- document.addEventListener("mousedown", function (e) {
- if (
- e.target === self.elem ||
- (e.target.parentNode && e.target.parentNode === self.elem) ||
- (e.target.parentNode.parentNode && e.target.parentNode.parentNode === self.elem)
- ) {
- if (typeof e.stopPropagation != "undefined") {
- e.stopPropagation();
- } else {
- e.cancelBubble = true;
- }
- e.preventDefault();
- self.pointerDown(e);
- }
- }, false);
- document.addEventListener("mousemove", function (e) { self.pointerMove(e); }, false);
- document.addEventListener("mouseup", function (e) {
- self.pointerUp(e);
- }, false);
- document.addEventListener('gesturechange', function(e) {
- e.preventDefault();
- if (e.scale > 1) self.scale = 0.1; else if (e.scale < 1) self.scale = -0.1; else self.scale = 0;
- self.setup.scale && self.setup.scale(e);
- return false;
- }, false);
- if (window.navigator.msPointerEnabled) {
- var nContact = 0;
- var myGesture = new MSGesture();
- myGesture.target = this.elem;
- this.elem.addEventListener("MSPointerDown", function(e) {
- if (e.pointerType == e.MSPOINTER_TYPE_TOUCH) {
- myGesture.addPointer(e.pointerId);
- nContact++;
- }
- }, false);
- this.elem.addEventListener("MSPointerOut", function(e) {
- if (e.pointerType == e.MSPOINTER_TYPE_TOUCH) {
- nContact--;
- }
- }, false);
- this.elem.addEventListener("MSGestureHold", function(e) {
- e.preventDefault();
- }, false);
- this.elem.addEventListener("MSGestureChange", function(e) {
- if (nContact > 1) {
- if (e.preventDefault) e.preventDefault();
- self.scale = e.velocityExpansion;
- self.setup.scale && self.setup.scale(e);
- }
- return false;
- }, false);
- }
- if (window.addEventListener) this.elem.addEventListener('DOMMouseScroll', function(e) {
- if (e.preventDefault) e.preventDefault();
- self.wheelDelta = e.detail * 10;
- self.setup.wheel && self.setup.wheel(e);
- return false;
- }, false);
- this.elem.onmousewheel = function () {
- self.wheelDelta = -event.wheelDelta * .25;
- self.setup.wheel && self.setup.wheel(event);
- return false;
- }
- }
- // ===== request animation frame =====
- window.requestAnimFrame = (function(){
- return window.requestAnimationFrame ||
- window.webkitRequestAnimationFrame ||
- window.mozRequestAnimationFrame ||
- window.oRequestAnimationFrame ||
- window.msRequestAnimationFrame ||
- function( run ){
- window.setTimeout(run, 16);
- };
- })();
复制代码- // ===== ge1doot global ===== js文件1
- var ge1doot = ge1doot || {
- json: null,
- screen: null,
- pointer: null,
- camera: null,
- loadJS: function (url, callback, data) {
- if (typeof url == "string") url = [url];
- var load = function (src) {
- var script = document.createElement("script");
- if (callback) {
- if (script.readyState){
- script.onreadystatechange = function () {
- if (script.readyState == "loaded" || script.readyState == "complete"){
- script.onreadystatechange = null;
- if (--n === 0) callback(data || false);
- }
- }
- } else {
- script.onload = function() {
- if (--n === 0) callback(data || false);
- }
- }
- }
- script.src = src;
- document.getElementsByTagName("head")[0].appendChild(script);
- }
- for (var i = 0, n = url.length; i < n; i++) load(url[i]);
- }
- }
- // ===== html/canvas container =====
- ge1doot.Screen = function (setup) {
- ge1doot.screen = this;
- this.elem = document.getElementById(setup.container) || setup.container;
- this.ctx = this.elem.tagName == "CANVAS" ? this.elem.getContext("2d") : false;
- this.style = this.elem.style;
- this.left = 0;
- this.top = 0;
- this.width = 0;
- this.height = 0;
- this.cursor = "default";
- this.setup = setup;
- this.resize = function () {
- var o = this.elem;
- this.width = o.offsetWidth;
- this.height = o.offsetHeight;
- for (this.left = 0, this.top = 0; o != null; o = o.offsetParent) {
- this.left += o.offsetLeft;
- this.top += o.offsetTop;
- }
- if (this.ctx) {
- this.elem.width = this.width;
- this.elem.height = this.height;
- }
- this.setup.resize && this.setup.resize();
- }
- this.setCursor = function (type) {
- if (type !== this.cursor && 'ontouchstart' in window === false) {
- this.cursor = type;
- this.style.cursor = type;
- }
- }
- window.addEventListener('resize', function () {
- ge1doot.screen.resize();
- }, false);
- !this.setup.resize && this.resize();
- }
- // ==== unified touch events handler ====
- ge1doot.Pointer = function (setup) {
- ge1doot.pointer = this;
- var self = this;
- var body = document.body;
- var html = document.documentElement;
- this.setup = setup;
- this.screen = ge1doot.screen;
- this.elem = this.screen.elem;
- this.X = 0;
- this.Y = 0;
- this.Xi = 0;
- this.Yi = 0;
- this.bXi = 0;
- this.bYi = 0;
- this.Xr = 0;
- this.Yr = 0;
- this.startX = 0;
- this.startY = 0;
- this.scale = 0;
- this.wheelDelta = 0;
- this.isDraging = false;
- this.hasMoved = false;
- this.isDown = false;
- this.evt = false;
- var sX = 0;
- var sY = 0;
- // prevent default behavior
- if (setup.tap) this.elem.onclick = function () { return false; }
- if (!setup.documentMove) {
- document.ontouchmove = function(e) { e.preventDefault(); }
- }
- document.addEventListener("MSHoldVisual", function(e) { e.preventDefault(); }, false);
- if (typeof this.elem.style.msTouchAction != 'undefined') this.elem.style.msTouchAction = "none";
- this.pointerDown = function (e) {
- if (!this.isDown) {
- if (this.elem.setCapture) this.elem.setCapture();
- this.isDraging = false;
- this.hasMoved = false;
- this.isDown = true;
- this.evt = e;
- this.Xr = (e.clientX !== undefined ? e.clientX : e.touches[0].clientX);
- this.Yr = (e.clientY !== undefined ? e.clientY : e.touches[0].clientY);
- this.X = sX = this.Xr - this.screen.left;
- this.Y = sY = this.Yr - this.screen.top + ((html && html.scrollTop) || body.scrollTop);
- this.setup.down && this.setup.down(e);
- }
- }
- this.pointerMove = function(e) {
- this.Xr = (e.clientX !== undefined ? e.clientX : e.touches[0].clientX);
- this.Yr = (e.clientY !== undefined ? e.clientY : e.touches[0].clientY);
- this.X = this.Xr - this.screen.left;
- this.Y = this.Yr - this.screen.top + ((html && html.scrollTop) || body.scrollTop);
- if (this.isDown) {
- this.Xi = this.bXi + (this.X - sX);
- this.Yi = this.bYi - (this.Y - sY);
- }
- if (Math.abs(this.X - sX) > 11 || Math.abs(this.Y - sY) > 11) {
- this.hasMoved = true;
- if (this.isDown) {
- if (!this.isDraging) {
- this.startX = sX;
- this.startY = sY;
- this.setup.startDrag && this.setup.startDrag(e);
- this.isDraging = true;
- } else {
- this.setup.drag && this.setup.drag(e);
- }
- } else {
- sX = this.X;
- sY = this.Y;
- }
- }
- this.setup.move && this.setup.move(e);
- }
- this.pointerUp = function(e) {
- this.bXi = this.Xi;
- this.bYi = this.Yi;
- if (!this.hasMoved) {
- this.X = sX;
- this.Y = sY;
- this.setup.tap && this.setup.tap(this.evt);
- } else {
- this.setup.up && this.setup.up(this.evt);
- }
- this.isDraging = false;
- this.isDown = false;
- this.hasMoved = false;
- this.setup.up && this.setup.up(this.evt);
- if (this.elem.releaseCapture) this.elem.releaseCapture();
- this.evt = false;
- }
- this.pointerCancel = function(e) {
- if (this.elem.releaseCapture) this.elem.releaseCapture();
- this.isDraging = false;
- this.hasMoved = false;
- this.isDown = false;
- this.bXi = this.Xi;
- this.bYi = this.Yi;
- sX = 0;
- sY = 0;
- }
- if ('ontouchstart' in window) {
- this.elem.ontouchstart = function (e) { self.pointerDown(e); return false; }
- this.elem.ontouchmove = function (e) { self.pointerMove(e); return false; }
- this.elem.ontouchend = function (e) { self.pointerUp(e); return false; }
- this.elem.ontouchcancel = function (e) { self.pointerCancel(e); return false;}
- }
- document.addEventListener("mousedown", function (e) {
- if (
- e.target === self.elem ||
- (e.target.parentNode && e.target.parentNode === self.elem) ||
- (e.target.parentNode.parentNode && e.target.parentNode.parentNode === self.elem)
- ) {
- if (typeof e.stopPropagation != "undefined") {
- e.stopPropagation();
- } else {
- e.cancelBubble = true;
- }
- e.preventDefault();
- self.pointerDown(e);
- }
- }, false);
- document.addEventListener("mousemove", function (e) { self.pointerMove(e); }, false);
- document.addEventListener("mouseup", function (e) {
- self.pointerUp(e);
- }, false);
- document.addEventListener('gesturechange', function(e) {
- e.preventDefault();
- if (e.scale > 1) self.scale = 0.1; else if (e.scale < 1) self.scale = -0.1; else self.scale = 0;
- self.setup.scale && self.setup.scale(e);
- return false;
- }, false);
- if (window.navigator.msPointerEnabled) {
- var nContact = 0;
- var myGesture = new MSGesture();
- myGesture.target = this.elem;
- this.elem.addEventListener("MSPointerDown", function(e) {
- if (e.pointerType == e.MSPOINTER_TYPE_TOUCH) {
- myGesture.addPointer(e.pointerId);
- nContact++;
- }
- }, false);
- this.elem.addEventListener("MSPointerOut", function(e) {
- if (e.pointerType == e.MSPOINTER_TYPE_TOUCH) {
- nContact--;
- }
- }, false);
- this.elem.addEventListener("MSGestureHold", function(e) {
- e.preventDefault();
- }, false);
- this.elem.addEventListener("MSGestureChange", function(e) {
- if (nContact > 1) {
- if (e.preventDefault) e.preventDefault();
- self.scale = e.velocityExpansion;
- self.setup.scale && self.setup.scale(e);
- }
- return false;
- }, false);
- }
- if (window.addEventListener) this.elem.addEventListener('DOMMouseScroll', function(e) {
- if (e.preventDefault) e.preventDefault();
- self.wheelDelta = e.detail * 10;
- self.setup.wheel && self.setup.wheel(e);
- return false;
- }, false);
- this.elem.onmousewheel = function () {
- self.wheelDelta = -event.wheelDelta * .25;
- self.setup.wheel && self.setup.wheel(event);
- return false;
- }
- }
- // ===== request animation frame =====
- window.requestAnimFrame = (function(){
- return window.requestAnimationFrame ||
- window.webkitRequestAnimationFrame ||
- window.mozRequestAnimationFrame ||
- window.oRequestAnimationFrame ||
- window.msRequestAnimationFrame ||
- function( run ){
- window.setTimeout(run, 16);
- };
- })();
复制代码 到此这篇关于HTML+CSS+JavaScript实现图片3D展览的示例代码的文章就介绍到这了,更多相关HTML图片3D展览内容请搜索脚本之家以前的文章或继续浏览下面的相关文章,希望大家以后多多支持脚本之家!
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