HTML+CSS+JavaScript实现图片3D展览的示例代码
导读：收集整理的这篇文章主要介绍了HTML+CSS+JavaScript实现图片3D展览的示例代码，觉得挺不错的，现在分享给大家，也给大家做个参考。 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...
收集整理的这篇文章主要介绍了HTML+CSS+JavaScript实现图片3D展览的示例代码，觉得挺不错的，现在分享给大家，也给大家做个参考。 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>
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;
}
3. JavaScript代码
// ===== ge1doot global ===== js文件1var 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);
}
;
}
)();
// ===== ge1doot global ===== js文件1var 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);
}
;
}
)();
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