HTML+CSS+JavaScript实现图片3D展览的示例代码
这篇文章主要介绍了HTML+CSS+JavaScript实现图片3D展览的示例代码。文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧
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
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 | <!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
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | # icon { background : rgb ( 255 , 144 , 0 ); border-radius: 6px 0px 0px ; transition: 0.6 s ease-in-out; left : 65px ; top : 6px ; width : 40px ; height : 40px ; overflow : hidden ; position : relative ; cursor : pointer ; -moz-transition: all 0.6 s ease-in-out 0 s; -webkit-transition: all 0.6 s ease-in-out 0 s; -o-transition: all 0.6 s ease-in-out 0 s; } # 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 0.3 s ease-in-out; left : -100px ; width : 100% ; position : absolute ; -moz-transition: left 0.3 s ease-in-out 0 s; -webkit-transition: left 0.3 s ease-in-out 0 s; -o-transition: left 0.3 s ease-in-out 0 s; } #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( -180 deg); -webkit-transform: rotate( -180 deg); -moz-transform: rotate( -180 deg); -o-transform: rotate( -180 deg); } .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
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 | // ===== 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); }; })(); |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 | // ===== 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); }; })(); |
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