1 | //#include <boost/algorithm/string.hpp>
|
---|
2 |
|
---|
3 | #include <stack>
|
---|
4 | #include "SceneGraph.h"
|
---|
5 | #include "X3dExporter.h"
|
---|
6 | #include "Intersectable.h"
|
---|
7 | #include "IntersectableWrapper.h"
|
---|
8 |
|
---|
9 |
|
---|
10 | using namespace std;
|
---|
11 |
|
---|
12 | namespace GtpVisibilityPreprocessor {
|
---|
13 |
|
---|
14 |
|
---|
15 | bool
|
---|
16 | SceneGraph::Export( const string filename )
|
---|
17 | {
|
---|
18 | if (strstr(filename.c_str(), ".x3d")) {
|
---|
19 | X3dExporter exporter(filename);
|
---|
20 | exporter.ExportScene(mRoot);
|
---|
21 | return true;
|
---|
22 | } else {
|
---|
23 | cerr<<"Error: Currently unsuported export format, filename "<<filename<<endl;
|
---|
24 |
|
---|
25 | }
|
---|
26 |
|
---|
27 |
|
---|
28 | return false;
|
---|
29 |
|
---|
30 | }
|
---|
31 |
|
---|
32 |
|
---|
33 | SceneGraphNode::~SceneGraphNode()
|
---|
34 | {
|
---|
35 | }
|
---|
36 |
|
---|
37 |
|
---|
38 | SceneGraphLeaf::~SceneGraphLeaf()
|
---|
39 | {
|
---|
40 | CLEAR_CONTAINER(mGeometry);
|
---|
41 | }
|
---|
42 |
|
---|
43 |
|
---|
44 | SceneGraphInterior::~SceneGraphInterior()
|
---|
45 | {
|
---|
46 | // recursivly delete all children
|
---|
47 | CLEAR_CONTAINER(mChildren);
|
---|
48 | }
|
---|
49 |
|
---|
50 |
|
---|
51 |
|
---|
52 | /************************************************************/
|
---|
53 | /* SceneGraph implementation */
|
---|
54 | /************************************************************/
|
---|
55 |
|
---|
56 |
|
---|
57 | SceneGraph::SceneGraph():
|
---|
58 | mRoot(NULL)
|
---|
59 | {
|
---|
60 | }
|
---|
61 |
|
---|
62 |
|
---|
63 | SceneGraph::~SceneGraph()
|
---|
64 | {
|
---|
65 | DEL_PTR(mRoot);
|
---|
66 | }
|
---|
67 |
|
---|
68 |
|
---|
69 | SceneGraphInterior *SceneGraph::GetRoot()
|
---|
70 | {
|
---|
71 | return mRoot;
|
---|
72 | }
|
---|
73 |
|
---|
74 |
|
---|
75 | void SceneGraph::SetRoot(SceneGraphInterior *root)
|
---|
76 | {
|
---|
77 | mRoot = root;
|
---|
78 | }
|
---|
79 |
|
---|
80 |
|
---|
81 | int SceneGraph::CollectObjects(ObjectContainer &instances)
|
---|
82 | {
|
---|
83 | instances.clear();
|
---|
84 | int number = 0;
|
---|
85 |
|
---|
86 | stack<SceneGraphNode *> nodeStack;
|
---|
87 | nodeStack.push(mRoot);
|
---|
88 |
|
---|
89 | while (!nodeStack.empty())
|
---|
90 | {
|
---|
91 | SceneGraphNode *node = nodeStack.top();
|
---|
92 | nodeStack.pop();
|
---|
93 |
|
---|
94 | if (node->IsLeaf())
|
---|
95 | {
|
---|
96 | SceneGraphLeaf *leaf = static_cast<SceneGraphLeaf *>(node);
|
---|
97 |
|
---|
98 | ObjectContainer::const_iterator mi = leaf->mGeometry.begin();
|
---|
99 |
|
---|
100 | for (; mi != leaf->mGeometry.end(); mi++)
|
---|
101 | {
|
---|
102 | instances.push_back(*mi);
|
---|
103 | }
|
---|
104 | }
|
---|
105 | else
|
---|
106 | {
|
---|
107 | SceneGraphInterior *interior = static_cast<SceneGraphInterior *>(node);
|
---|
108 | SceneGraphNodeContainer::iterator ni = interior->mChildren.begin();
|
---|
109 |
|
---|
110 | for (; ni != interior->mChildren.end(); ++ ni)
|
---|
111 | {
|
---|
112 | nodeStack.push(*ni);
|
---|
113 | number++;
|
---|
114 | }
|
---|
115 | }
|
---|
116 | }
|
---|
117 |
|
---|
118 | return number;
|
---|
119 | }
|
---|
120 |
|
---|
121 |
|
---|
122 | int
|
---|
123 | SceneGraph::AssignObjectIds()
|
---|
124 | {
|
---|
125 | // matt: rather start with id zero
|
---|
126 | int id = 0;
|
---|
127 | stack<SceneGraphNode *> nodeStack;
|
---|
128 |
|
---|
129 | nodeStack.push(mRoot);
|
---|
130 |
|
---|
131 | while (!nodeStack.empty())
|
---|
132 | {
|
---|
133 | SceneGraphNode *node = nodeStack.top();
|
---|
134 | nodeStack.pop();
|
---|
135 |
|
---|
136 | if (node->IsLeaf())
|
---|
137 | {
|
---|
138 | SceneGraphLeaf *leaf = static_cast<SceneGraphLeaf *>(node);
|
---|
139 | ObjectContainer::iterator mi = leaf->mGeometry.begin();
|
---|
140 |
|
---|
141 | for (; mi != leaf->mGeometry.end(); mi ++)
|
---|
142 | {
|
---|
143 | (*mi)->SetId(id ++);
|
---|
144 | }
|
---|
145 | }
|
---|
146 | else
|
---|
147 | {
|
---|
148 | SceneGraphInterior *interior = static_cast<SceneGraphInterior *>(node);
|
---|
149 |
|
---|
150 | SceneGraphNodeContainer::iterator ni = interior->mChildren.begin();
|
---|
151 |
|
---|
152 | for (; ni != interior->mChildren.end(); ni ++)
|
---|
153 | {
|
---|
154 | nodeStack.push(*ni);
|
---|
155 | }
|
---|
156 | }
|
---|
157 | }
|
---|
158 |
|
---|
159 | // return max id
|
---|
160 | return id;
|
---|
161 | }
|
---|
162 |
|
---|
163 | void
|
---|
164 | SceneGraph::GetStatistics(int &intersectables, int &faces) const
|
---|
165 | {
|
---|
166 | stack<SceneGraphNode *> nodeStack;
|
---|
167 |
|
---|
168 | nodeStack.push(mRoot);
|
---|
169 | faces = 0;
|
---|
170 | intersectables = 0;
|
---|
171 |
|
---|
172 | while (!nodeStack.empty())
|
---|
173 | {
|
---|
174 | SceneGraphNode *node = nodeStack.top();
|
---|
175 | nodeStack.pop();
|
---|
176 |
|
---|
177 | if (node->IsLeaf())
|
---|
178 | {
|
---|
179 | SceneGraphLeaf *leaf = static_cast<SceneGraphLeaf *>(node);
|
---|
180 |
|
---|
181 | ObjectContainer::const_iterator mi = leaf->mGeometry.begin();
|
---|
182 | for (; mi != leaf->mGeometry.end(); mi++)
|
---|
183 | {
|
---|
184 | intersectables++;
|
---|
185 | faces += (*mi)->NumberOfFaces();
|
---|
186 | }
|
---|
187 | }
|
---|
188 | else
|
---|
189 | {
|
---|
190 | SceneGraphInterior *interior = static_cast<SceneGraphInterior *>(node);
|
---|
191 |
|
---|
192 | SceneGraphNodeContainer::iterator ni = interior->mChildren.begin();
|
---|
193 | for (; ni != interior->mChildren.end(); ni++)
|
---|
194 | {
|
---|
195 | nodeStack.push(*ni);
|
---|
196 | }
|
---|
197 | }
|
---|
198 | }
|
---|
199 | }
|
---|
200 |
|
---|
201 |
|
---|
202 | void SceneGraphLeaf::UpdateBox()
|
---|
203 | {
|
---|
204 | AxisAlignedBox3 box;
|
---|
205 | box.Initialize();
|
---|
206 |
|
---|
207 | ObjectContainer::const_iterator mi = mGeometry.begin();
|
---|
208 | for (; mi != mGeometry.end(); mi++)
|
---|
209 | box.Include((*mi)->GetBox());
|
---|
210 |
|
---|
211 | mBox = box;
|
---|
212 | }
|
---|
213 |
|
---|
214 |
|
---|
215 | void SceneGraphInterior::UpdateBox()
|
---|
216 | {
|
---|
217 | AxisAlignedBox3 box;
|
---|
218 |
|
---|
219 | box.Initialize();
|
---|
220 |
|
---|
221 | SceneGraphNodeContainer::iterator ni = mChildren.begin();
|
---|
222 |
|
---|
223 | for (; ni != mChildren.end(); ++ ni)
|
---|
224 | {
|
---|
225 | (*ni)->UpdateBox();
|
---|
226 | box.Include((*ni)->GetBox());
|
---|
227 | }
|
---|
228 |
|
---|
229 | mBox = box;
|
---|
230 | }
|
---|
231 |
|
---|
232 |
|
---|
233 |
|
---|
234 | void SceneGraph::ExportScene(const string filename)
|
---|
235 | {
|
---|
236 |
|
---|
237 | }
|
---|
238 |
|
---|
239 |
|
---|
240 | void SceneGraph::LoadScene(const string filename)
|
---|
241 | {
|
---|
242 | // load binary version of mesh
|
---|
243 | }
|
---|
244 |
|
---|
245 |
|
---|
246 | int SceneGraph::GetSize() const
|
---|
247 | {
|
---|
248 | stack<SceneGraphNode *> nodeStack;
|
---|
249 |
|
---|
250 | nodeStack.push(mRoot);
|
---|
251 | int size = 0;
|
---|
252 |
|
---|
253 | while (!nodeStack.empty())
|
---|
254 | {
|
---|
255 | SceneGraphNode *node = nodeStack.top();
|
---|
256 | nodeStack.pop();
|
---|
257 |
|
---|
258 | if (node->IsLeaf())
|
---|
259 | {
|
---|
260 | SceneGraphLeaf *leaf = static_cast<SceneGraphLeaf *>(node);
|
---|
261 |
|
---|
262 | size += leaf->mGeometry.size();
|
---|
263 | }
|
---|
264 | else
|
---|
265 | {
|
---|
266 | SceneGraphInterior *interior = static_cast<SceneGraphInterior *>(node);
|
---|
267 |
|
---|
268 | SceneGraphNodeContainer::iterator ni = interior->mChildren.begin();
|
---|
269 | for (; ni != interior->mChildren.end(); ni++)
|
---|
270 | {
|
---|
271 | nodeStack.push(*ni);
|
---|
272 | }
|
---|
273 | }
|
---|
274 | }
|
---|
275 |
|
---|
276 | return size;
|
---|
277 | }
|
---|
278 |
|
---|
279 |
|
---|
280 | SceneGraphLeaf::SceneGraphLeaf(): mIsDynamic(false)
|
---|
281 | {
|
---|
282 | mTrafo = IdentityMatrix();
|
---|
283 | #if DYNAMIC_OBJECTS_HACK
|
---|
284 | mIntersectable = new SceneGraphLeafIntersectable(this, mBox);
|
---|
285 | #endif
|
---|
286 | }
|
---|
287 |
|
---|
288 |
|
---|
289 | SceneGraphLeaf::SceneGraphLeaf(bool isDynamic): mIsDynamic(isDynamic)
|
---|
290 | {
|
---|
291 | mTrafo = IdentityMatrix();
|
---|
292 | } |
---|
293 | |
---|
294 |
|
---|
295 | void SceneGraphLeaf::ApplyTransform(const Matrix4x4 &trafo) |
---|
296 | { |
---|
297 | mTrafo = trafo * mTrafo; |
---|
298 | } |
---|
299 | |
---|
300 |
|
---|
301 | void SceneGraphLeaf::LoadTransform(const Matrix4x4 &m)
|
---|
302 | {
|
---|
303 | mTrafo = m;
|
---|
304 | }
|
---|
305 |
|
---|
306 |
|
---|
307 | void SceneGraphLeaf::GetTransform(Matrix4x4 &m) const
|
---|
308 | {
|
---|
309 | m = mTrafo;
|
---|
310 | }
|
---|
311 |
|
---|
312 |
|
---|
313 | AxisAlignedBox3 SceneGraphLeaf::GetBox() const
|
---|
314 | {
|
---|
315 | return Transform(mBox, mTrafo);
|
---|
316 | }
|
---|
317 | |
---|
318 | } |
---|