在模型浏览器中加载模型后，可以对模型做一些特殊操作。下图是常用的设置。
都是通过 xbim-viewer.js 中的 API 来设置以达到一定的效果。代码如下：
代码语言：javascript复制 1 <!DOCTYPE html>
2 <html>
3 <head>
4 <title>xViewer</title>
5 <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
6
7 <script src="Content/Libs/gl-matrix.js"></script>
8 <script src="Content/Libs/webgl-utils.js"></script>
9 <script type="text/javascript" src="Content/Viewer/xbim-product-type.debug.js"></script>
10 <script type="text/javascript" src="Content/Viewer/xbim-state.debug.js"></script>
11 <script type="text/javascript" src="Content/Viewer/xbim-shaders.debug.js"></script>
12 <script type="text/javascript" src="Content/Viewer/xbim-model-geometry.debug.js"></script>
13 <script type="text/javascript" src="Content/Viewer/xbim-model-handle.debug.js"></script>
14 <script type="text/javascript" src="Content/Viewer/xbim-binary-reader.debug.js"></script>
15 <script type="text/javascript" src="Content/Viewer/xbim-triangulated-shape.debug.js"></script>
16 <script type="text/javascript" src="Content/Viewer/xbim-viewer.debug.js"></script>
17
18 <script src="Content/Plugins/NavigationCube/xbim-navigation-cube-shaders.debug.js"></script>
19 <script src="Content/Plugins/NavigationCube/xbim-navigation-cube.debug.js"></script>
20 <script src="Content/Plugins/NavigationCube/xbim-navigation-cube-textures.debug.js"></script>
21
22 <script src="Content/Plugins/NavigationHome/xbim-navigation-home-textures.debug.js"></script>
23 <script src="Content/Plugins/NavigationHome/xbim-navigation-home.debug.js"></script>
24 <script src="Content/Libs/jquery.js"></script>
25 <style>
26 html, body {
27 height: 100%;
28 padding: 0;
29 margin: 0;
30 }
31
32 canvas {
33 display: block;
34 border: none;
35 margin-left: auto;
36 margin-right: auto;
37 }
38
39 #operate {
40 display: inline;
41 border: 1px;
42 margin-top: 20px;
43 margin-left: 20px;
44 margin-right: auto;
45 padding-top: 20px;
46 }
47
48 .select {
49 margin-top: 20px;
50 margin-left: 20px;
51 }
52 </style>
53 </head>
54 <body>
55 <div id="msg"></div>
56 <div class="select">
57 <input type="file" id="input" accept=".wexbim" />
58 </div>
59 <div style="float: left; margin: 20px;"><canvas id="xBIM-viewer" width="750" height="500"></canvas></div>
60 <div id="operate">
61 <div> </div>
62 <div>
63 <div>
64 Selected ID: <span id="coords"></span>
65 </div>
66 <div>
67 帧数 (FPS): <span id="fps"></span>
68 </div>
69 </div>
70 <div> </div>
71 <div>
72 导航模式：
73 <button onclick="setNavigation('zoom');">缩放</button>
74 <button onclick="setNavigation('pan');">平移</button>
75 <button onclick="setNavigation('fixed-orbit');">固定动态观察</button>
76 <button onclick="setNavigation('free-orbit');">自由动态观察</button>
77 <button onclick="setNavigation('none');">无</button>
78 </div>
79 <div> </div>
80 <div>
81 观察视角：
82 <button onclick="setShow('front');">前</button>
83 <button onclick="setShow('back');">后</button>
84 <button onclick="setShow('top');">上</button>
85 <button onclick="setShow('bottom');">下</button>
86 <button onclick="setShow('left');">左</button>
87 <button onclick="setShow('right');">右</button>
88 </div>
89 <div> </div>
90 <div>
91 局部：
92 <button onclick="clip();">剖切</button>
93 <button onclick="unclip();">复原</button>
94 </div>
95 <div> </div>
96 <div>
97 相机：
98 <button onclick="setCamera('perspective');">透视</button>
99 <button onclick="setCamera('orthogonal');">正交</button>
100 </div>
101 <div> </div>
102 <div>
103 渲染模式：
104 <label>
105 <input type="radio" name="radioRenderingMode" value="normal" checked="checked" onchange="setRenderingMode('normal');" /> Normal
106 </label>
107 <label>
108 <input type="radio" name="radioRenderingMode" value="xray" onchange="setRenderingMode('x-ray');" /> X-Ray
109 </label>
110 </div>
111 <div> </div>
112 <div>
113 其他：
114 <button onclick="selectAllWalls();">选中所有墙</button>
115 <button onclick="resetWalls();">复原</button>
116 <button onclick="hideWalls();">隐藏所有墙</button>
117 </div>
118 <div> </div>
119 <div>
120 设置状态：
121 <button onclick="setStateShowAll();">显示所有</button>
122 <button onclick="setStateGlass();">设置滤镜效果</button>
123 <button onclick="setStateWhite();">设置为白色</button>
124 <button onclick="setStateDefault();">设置默认</button>
125 <button onclick="setStateHideSpace();">隐藏空格</button>
126 <button onclick="setStateShowSpace();">显示空格</button>
127 </div>
128 </div>
129 <script type="text/javascript">
130 var modelId = -9999;
131 var check = xViewer.check();
132 if (check.noErrors) {
133 var viewer = new xViewer("xBIM-viewer");
134 viewer.background = [0, 0, 0]; //设置模型浏览器的背景色
135
136 viewer.on("error",
137 function (arg) {
138 var container = viewer._canvas.parentNode;
139 if (container) {
140 container.innerHTML = "<pre style='color:red;'>" arg.message "</pre>" container.innerHTML;
141 }
142 }); //实时监控异常发生事件
143
144 viewer.show("back");
145
146 viewer.on("loaded", function (model) {
147 modelId = model.id; //第一次加载的是0，第二次加载的1，每次递增
148 });
149
150 viewer.on("pick", function (arg) {
151 var span = document.getElementById("coords");
152 if (span) {
153 span.innerHTML = arg.id;
154 }
155 });
156 viewer.on("mouseDown", function (arg) {
157 viewer.setCameraTarget(arg.id);
158 });
159 viewer.on("fps", function (fps) {
160 var span = document.getElementById("fps");
161 if (span) {
162 span.innerHTML = fps;
163 }
164 });
165 var span = document.getElementById("fpt");
166 if (span) {
167 span.innerHTML = viewer._fpt != null;
168 }
169
170 //viewer.load("Content/tests/data/rac_advanced_sample_project.wexbim"); //加载模型文件
171 //viewer.start(); //使用此函数可以启动模型的动画。如果在加载几何图形之前启动动画，它将等待内容呈现。此函数绑定到屏幕的浏览器帧速率，因此如果切换到其他选项卡，它将停止消耗任何资源。
172
173 $("#input").change(function () {
174 if (!input.files) return;
175
176 var file = this.files[0];
177 if (!file) return;
178
179 if (modelId !== -9999) {
180 viewer.unload(modelId); //如果之前已经加载过模型，则将模型卸载掉
181 }
182
183 viewer.load(file, file.name);//重新加载新的模型
184 viewer.start();
185
186 var cube = new xNavigationCube();
187 viewer.addPlugin(cube); // 添加立方体导航
188
189 var home = new xNavigationHome();
190 viewer.addPlugin(home); // 添加首页导航
191 });
192
193 // 设置导航模式
194 var setNavigation = function (mode) {
195 viewer.navigationMode = mode;
196 }
197
198 // 设置观察视角
199 var setShow = function (direction) {
200 viewer.show(direction);
201 }
202
203 // 剖切
204 var clip = function () {
205 viewer.clip();
206 }
207
208 // 还原
209 var unclip = function () {
210 viewer.unclip();
211 }
212
213 // 设置相机模式
214 var setCamera = function (mode) {
215 viewer.camera = mode;
216 }
217
218 // 设置渲染模式
219 var setRenderingMode = function (mode) {
220 viewer.renderingMode = mode;
221 }
222
223 var types = xProductType;
224 var states = xState;
225 viewer.defineStyle(0, [255, 0, 0, 255]); //red
226 viewer.defineStyle(1, [0, 0, 255, 100]); //semitransparent blue
227 viewer.defineStyle(2, [255, 255, 255, 255]); //white
228
229 // 选中所有墙
230 var selectAllWalls = function () {
231 viewer.setState(states.HIGHLIGHTED, types.IFCWALLSTANDARDCASE);
232 viewer.setState(states.HIGHLIGHTED, types.IFCCURTAINWALL);
233 viewer.setState(states.HIGHLIGHTED, types.IFCWALL);
234 }
235
236 // 隐藏所有墙
237 var hideWalls = function () {
238 viewer.setState(states.HIDDEN, types.IFCWALLSTANDARDCASE);
239 viewer.setState(states.HIDDEN, types.IFCCURTAINWALL);
240 viewer.setState(states.HIDDEN, types.IFCWALL);
241 }
242
243 // 复原
244 var resetWalls = function () {
245 viewer.setState(states.UNDEFINED, types.IFCWALLSTANDARDCASE);
246 viewer.setState(states.UNDEFINED, types.IFCCURTAINWALL);
247 viewer.setState(states.UNDEFINED, types.IFCWALL);
248 }
249
250 // 设置状态，显示所有
251 var setStateShowAll = function() {
252 for (var i in types) {
253 if (types[i] !== types.IFCSPACE) {
254 viewer.setState(states.UNDEFINED, types[i]);
255 }
256 }
257 }
258
259 // 设置状态，滤镜效果
260 var setStateGlass = function() {
261 for (var i in types) {
262 if (types[i] !== types.IFCSPACE) {
263 viewer.setStyle(1, types[i]);
264 }
265 }
266 }
267
268 // 设置状态，白色效果
269 var setStateWhite = function() {
270 for (var i in types) {
271 if (types[i] !== types.IFCSPACE) {
272 viewer.setStyle(2, types[i]);
273 }
274 }
275 }
276
277 // 设置状态，默认效果
278 var setStateDefault = function() {
279 for (var i in types) {
280 if (types[i] !== types.IFCSPACE) {
281 viewer.setStyle(xState.UNSTYLED, types[i]);
282 }
283 }
284 }
285
286 // 设置状态，隐藏空格
287 var setStateHideSpace = function() {
288 viewer.setState(states.HIDDEN, types.IFCSPACE);
289 }
290
291 // 设置状态，显示空格
292 var setStateShowSpace = function() {
293 viewer.setState(states.UNDEFINED, types.IFCSPACE);
294 }
295
296 } else {
297 alert("您浏览器版本过低，不支持WebGL技术。请升级浏览器。");
298
299 var msg = document.getElementById("msg");
300 for (var i in check.errors) {
301 var error = check.errors[i];
302 msg.innerHTML = "<div style='color: red;'>" error "</div>";
303 }
304 }
305 </script>
306 </body>
307 </html>
