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unittests_trimesh_circulator_face_edge.cc
1 #include <gtest/gtest.h>
2 #include <Unittests/unittests_common.hh>
3 
4 #include <iostream>
5 #include <algorithm>
6 
7 namespace {
8 
9 class OpenMeshTrimeshCirculatorFaceEdge : public OpenMeshBase {
10 
11  protected:
12 
13  // This function is called before each test is run
14  virtual void SetUp() {
15  }
16 
17  // This function is called after all tests are through
18  virtual void TearDown() {
19 
20  // Do some final stuff with the member data here...
21  }
22 
23 
24  // Member already defined in OpenMeshBase
25  //Mesh mesh_;
26 };
27 
28 /*
29  * ====================================================================
30  * Define tests below
31  * ====================================================================
32  */
33 
34 
35 
36 
37 /*
38  * Small FaceEdgeIterator Test
39  */
40 TEST_F(OpenMeshTrimeshCirculatorFaceEdge, FaceEdgeIterWithoutHolesIncrement) {
41 
42  mesh_.clear();
43 
44  // Add some vertices
45  Mesh::VertexHandle vhandle[6];
46 
47  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
48  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
49  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
50  vhandle[3] = mesh_.add_vertex(Mesh::Point(3, 0, 0));
51  vhandle[4] = mesh_.add_vertex(Mesh::Point(4, 1, 0));
52  vhandle[5] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
53 
54  // Add three faces
55  std::vector<Mesh::VertexHandle> face_vhandles;
56 
57  face_vhandles.push_back(vhandle[0]);
58  face_vhandles.push_back(vhandle[1]);
59  face_vhandles.push_back(vhandle[2]);
60  mesh_.add_face(face_vhandles);
61 
62  face_vhandles.clear();
63 
64  face_vhandles.push_back(vhandle[2]);
65  face_vhandles.push_back(vhandle[1]);
66  face_vhandles.push_back(vhandle[3]);
67  mesh_.add_face(face_vhandles);
68 
69  face_vhandles.clear();
70 
71  face_vhandles.push_back(vhandle[2]);
72  face_vhandles.push_back(vhandle[3]);
73  face_vhandles.push_back(vhandle[4]);
74  mesh_.add_face(face_vhandles);
75 
76  face_vhandles.clear();
77 
78  face_vhandles.push_back(vhandle[1]);
79  face_vhandles.push_back(vhandle[5]);
80  face_vhandles.push_back(vhandle[3]);
81  mesh_.add_face(face_vhandles);
82 
83  /* Test setup:
84  *
85  * 0 ------ 2 ------ 4
86  * \ / \ /
87  * \ 0 / \ 2 /
88  * \ / 1 \ /
89  * 1 ------- 3
90  * \ /
91  * \ 3 /
92  * \ /
93  * \ /
94  * 5
95  */
96 
97 
98  Mesh::FaceEdgeIter fe_it = mesh_.fe_begin(mesh_.face_handle(1));
99  Mesh::FaceEdgeIter fe_end = mesh_.fe_end(mesh_.face_handle(1));
100 
101  EXPECT_EQ(4, fe_it->idx() ) << "Index wrong in FaceEdgeIter at initialization";
102  EXPECT_TRUE(fe_it.is_valid()) << "Iterator invalid in FaceEdgeIter at initialization";
103  ++fe_it;
104  EXPECT_EQ(1, fe_it->idx() ) << "Index wrong in FaceEdgeIter at step 1";
105  EXPECT_TRUE(fe_it.is_valid()) << "Iterator invalid in FaceEdgeIter at step 1";
106  ++fe_it;
107  EXPECT_EQ(3, fe_it->idx() ) << "Index wrong in FaceEdgeIter at step 2";
108  EXPECT_TRUE(fe_it.is_valid()) << "Iterator invalid in FaceEdgeIter at step 2";
109  ++fe_it;
110  EXPECT_EQ(4, fe_it->idx() ) << "Index wrong in FaceEdgeIter at end";
111  EXPECT_FALSE(fe_it.is_valid()) << "Iterator invalid in FaceEdgeIter at end";
112  EXPECT_TRUE( fe_it == fe_end ) << "End iterator for FaceEdgeIter not matching";
113 
114  Mesh::ConstFaceEdgeIter cfe_it = mesh_.cfe_begin(mesh_.face_handle(1));
115  Mesh::ConstFaceEdgeIter cfe_end = mesh_.cfe_end(mesh_.face_handle(1));
116 
117  EXPECT_EQ(4, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at initialization";
118  EXPECT_TRUE(cfe_it.is_valid()) << "Iterator invalid in ConstFaceEdgeIter at initialization";
119  ++cfe_it;
120  EXPECT_EQ(1, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at step 1";
121  EXPECT_TRUE(cfe_it.is_valid()) << "Iterator invalid in ConstFaceEdgeIter at step 1";
122  ++cfe_it;
123  EXPECT_EQ(3, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at step 2";
124  EXPECT_TRUE(cfe_it.is_valid()) << "Iterator invalid in ConstFaceEdgeIter at step 2";
125  ++cfe_it;
126  EXPECT_EQ(4, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at end";
127  EXPECT_FALSE(cfe_it.is_valid()) << "Iterator invalid in ConstFaceEdgeIter at end";
128  EXPECT_TRUE( cfe_it == cfe_end ) << "End iterator for ConstFaceEdgeIter not matching";
129 
130 }
131 }
132 
133 /*
134  * test CW and CCW iterators
135  */
136 TEST_F(OpenMeshTrimeshCirculatorFaceEdge, CWAndCCWTest) {
137 
138  mesh_.clear();
139 
140  // Add some vertices
141  Mesh::VertexHandle vhandle[6];
142 
143  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
144  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
145  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
146  vhandle[3] = mesh_.add_vertex(Mesh::Point(3, 0, 0));
147  vhandle[4] = mesh_.add_vertex(Mesh::Point(4, 1, 0));
148  vhandle[5] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
149 
150  // Add three faces
151  std::vector<Mesh::VertexHandle> face_vhandles;
152 
153  face_vhandles.push_back(vhandle[0]);
154  face_vhandles.push_back(vhandle[1]);
155  face_vhandles.push_back(vhandle[2]);
156  mesh_.add_face(face_vhandles);
157 
158  face_vhandles.clear();
159 
160  face_vhandles.push_back(vhandle[2]);
161  face_vhandles.push_back(vhandle[1]);
162  face_vhandles.push_back(vhandle[3]);
163  mesh_.add_face(face_vhandles);
164 
165  face_vhandles.clear();
166 
167  face_vhandles.push_back(vhandle[2]);
168  face_vhandles.push_back(vhandle[3]);
169  face_vhandles.push_back(vhandle[4]);
170  mesh_.add_face(face_vhandles);
171 
172  face_vhandles.clear();
173 
174  face_vhandles.push_back(vhandle[1]);
175  face_vhandles.push_back(vhandle[5]);
176  face_vhandles.push_back(vhandle[3]);
177  mesh_.add_face(face_vhandles);
178 
179  /* Test setup:
180  *
181  * 0 ------ 2 ------ 4
182  * \ / \ /
183  * \ 0 / \ 2 /
184  * \ / 1 \ /
185  * 1 ------- 3
186  * \ /
187  * \ 3 /
188  * \ /
189  * \ /
190  * 5
191  */
192 
193 
194  int indices[4] = {4, 1, 3, 4};
195  int rev_indices[4];
196  std::reverse_copy(indices,indices+4,rev_indices);
197 
198  //CCW
199  Mesh::FaceEdgeCCWIter fe_ccwit = mesh_.fe_ccwbegin(mesh_.face_handle(1));
200  Mesh::FaceEdgeCCWIter fe_ccwend = mesh_.fe_ccwend(mesh_.face_handle(1));
201  size_t i = 0;
202  for (;fe_ccwit != fe_ccwend; ++fe_ccwit, ++i)
203  {
204  EXPECT_EQ(indices[i], fe_ccwit->idx()) << "Index wrong in FaceEdgeCCWIter";
205  }
206 
207  EXPECT_FALSE(fe_ccwit.is_valid()) << "Iterator invalid in FaceEdgeCCWIter at end";
208  EXPECT_TRUE( fe_ccwit == fe_ccwend ) << "End iterator for FaceEdgeCCWIter not matching";
209 
210  //constant CCW
211  Mesh::ConstFaceEdgeCCWIter cfe_ccwit = mesh_.cfe_ccwbegin(mesh_.face_handle(1));
212  Mesh::ConstFaceEdgeCCWIter cfe_ccwend = mesh_.cfe_ccwend(mesh_.face_handle(1));
213  i = 0;
214  for (;cfe_ccwit != cfe_ccwend; ++cfe_ccwit, ++i)
215  {
216  EXPECT_EQ(indices[i], cfe_ccwit->idx()) << "Index wrong in ConstFaceEdgeCCWIter";
217  }
218 
219  EXPECT_FALSE(cfe_ccwit.is_valid()) << "Iterator invalid in ConstFaceEdgeCCWIter at end";
220  EXPECT_TRUE( cfe_ccwit == cfe_ccwend ) << "End iterator for ConstFaceEdgeCCWIter not matching";
221 
222  //CW
223  Mesh::FaceEdgeCWIter fe_cwit = mesh_.fe_cwbegin(mesh_.face_handle(1));
224  Mesh::FaceEdgeCWIter fe_cwend = mesh_.fe_cwend(mesh_.face_handle(1));
225  i = 0;
226  for (;fe_cwit != fe_cwend; ++fe_cwit, ++i)
227  {
228  EXPECT_EQ(rev_indices[i], fe_cwit->idx()) << "Index wrong in FaceEdgeCWIter";
229  }
230  EXPECT_FALSE(fe_cwit.is_valid()) << "Iterator invalid in FaceEdgeCWIter at end";
231  EXPECT_TRUE( fe_cwit == fe_cwend ) << "End iterator for FaceEdgeCWIter not matching";
232 
233  //constant CW
234  Mesh::ConstFaceEdgeCWIter cfe_cwit = mesh_.cfe_cwbegin(mesh_.face_handle(1));
235  Mesh::ConstFaceEdgeCWIter cfe_cwend = mesh_.cfe_cwend(mesh_.face_handle(1));
236  i = 0;
237  for (;cfe_cwit != cfe_cwend; ++cfe_cwit, ++i)
238  {
239  EXPECT_EQ(rev_indices[i], cfe_cwit->idx()) << "Index wrong in ConstFaceEdgeCWIter";
240  }
241  EXPECT_FALSE(cfe_cwit.is_valid()) << "Iterator invalid in ConstFaceEdgeCWIter at end";
242  EXPECT_TRUE( cfe_cwit == cfe_cwend ) << "End iterator for ConstFaceEdgeCWIter not matching";
243 
244  /*
245  * conversion properties:
246  * a) cw_begin == CWIter(ccw_begin())
247  * b) cw_iter->idx() == CCWIter(cw_iter)->idx() for valid iterators
248  * c) --cw_iter == CWIter(++ccwIter) for valid iterators
249  * d) cw_end == CWIter(ccw_end()) => --cw_end != CWIter(++ccw_end()) *
250  */
251  Mesh::FaceEdgeCWIter fe_cwIter = mesh_.fe_cwbegin(mesh_.face_handle(1));
252  // a)
253  EXPECT_TRUE( fe_cwIter == Mesh::FaceEdgeCWIter(mesh_.fe_ccwbegin(mesh_.face_handle(1))) ) << "ccw to cw conversion failed";
254  EXPECT_TRUE( Mesh::FaceEdgeCCWIter(fe_cwIter) == mesh_.fe_ccwbegin(mesh_.face_handle(1)) ) << "cw to ccw conversion failed";
255  // b)
256  EXPECT_EQ( fe_cwIter->idx(), Mesh::FaceEdgeCCWIter(fe_cwIter)->idx()) << "iterators doesnt point on the same element";
257  // c)
258  ++fe_cwIter;
259  fe_ccwend = mesh_.fe_ccwend(mesh_.face_handle(1));
260  --fe_ccwend;
261  EXPECT_EQ(fe_cwIter->idx(),fe_ccwend->idx()) << "iteratoes are not equal after inc/dec";
262  // additional conversion check
263  fe_ccwend = Mesh::FaceEdgeCCWIter(fe_cwIter);
264  EXPECT_EQ(fe_cwIter->idx(),fe_ccwend->idx())<< "iterators doesnt point on the same element";
265  // d)
266  fe_cwIter = Mesh::FaceEdgeCWIter(mesh_.fe_ccwend(mesh_.face_handle(1)));
267  EXPECT_FALSE(fe_cwIter.is_valid()) << "end iterator is not invalid";
268  EXPECT_TRUE(Mesh::FaceEdgeCCWIter(mesh_.fe_cwend(mesh_.face_handle(1))) == mesh_.fe_ccwend(mesh_.face_handle(1))) << "end iterators are not equal";
269 
270 }
271 
272 
273 /*
274  * Test if the end iterator stays invalid after one lap
275  */
276 //TEST_F(OpenMeshTrimeshCirculatorFaceEdge, FaceEdgeIterCheckInvalidationAtEnds) {
277 //
278 // mesh_.clear();
279 //
280 // // Add some vertices
281 // Mesh::VertexHandle vhandle[5];
282 //
283 // vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
284 // vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
285 // vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
286 // vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
287 // vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
288 //
289 // // Add two faces
290 // std::vector<Mesh::VertexHandle> face_vhandles;
291 //
292 // face_vhandles.push_back(vhandle[0]);
293 // face_vhandles.push_back(vhandle[1]);
294 // face_vhandles.push_back(vhandle[2]);
295 // Mesh::FaceHandle fh0 = mesh_.add_face(face_vhandles);
296 //
297 // face_vhandles.clear();
298 //
299 // face_vhandles.push_back(vhandle[1]);
300 // face_vhandles.push_back(vhandle[3]);
301 // face_vhandles.push_back(vhandle[4]);
302 // mesh_.add_face(face_vhandles);
303 //
304 // face_vhandles.clear();
305 //
306 // face_vhandles.push_back(vhandle[0]);
307 // face_vhandles.push_back(vhandle[3]);
308 // face_vhandles.push_back(vhandle[1]);
309 // mesh_.add_face(face_vhandles);
310 //
311 // face_vhandles.clear();
312 //
313 // face_vhandles.push_back(vhandle[2]);
314 // face_vhandles.push_back(vhandle[1]);
315 // face_vhandles.push_back(vhandle[4]);
316 // mesh_.add_face(face_vhandles);
317 //
318 // /* Test setup:
319 // 0 ==== 2
320 // |\ 0 /|
321 // | \ / |
322 // |2 1 3|
323 // | / \ |
324 // |/ 1 \|
325 // 3 ==== 4 */
326 //
327 //
328 // // Check if the end iterator stays invalid after end
329 // Mesh::FaceEdgeIter endIter = mesh_.fe_end(fh0);
330 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
331 // ++endIter ;
332 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid after increment";
333 //
334 // // Check if the end iterators becomes valid after decrement
335 // endIter = mesh_.fe_end(fh0);
336 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
337 // --endIter;
338 // EXPECT_TRUE(endIter.is_valid()) << "EndIter is invalid after decrement";
339 // EXPECT_EQ(1,endIter->idx()) << "EndIter points on the wrong element";
340 //
341 //
342 // // Check if the start iterator decrement is invalid
343 // Mesh::FaceEdgeIter startIter = mesh_.fe_begin(fh0);
344 // EXPECT_TRUE(startIter.is_valid()) << "StartIter is not valid";
345 // --startIter;
346 // EXPECT_FALSE(startIter.is_valid()) << "StartIter decrement is not invalid";
347 //
348 // // Check if the start iterator becomes valid
349 // ++startIter;
350 // EXPECT_TRUE(startIter.is_valid()) << "StartIter is invalid after re-incrementing";
351 // EXPECT_EQ(startIter->idx(), mesh_.fe_begin(fh0)->idx()) << "StartIter points on the wrong element";
352 //
353 //}
354 
355 
356 /*
357  * Small FaceEdgeIterator Test
358  */
359 /*
360 TEST_F(OpenMeshTrimeshCirculatorFaceEdge, FaceEdgeIterWithoutHolesDecrement) {
361 
362  mesh_.clear();
363 
364  // Add some vertices
365  Mesh::VertexHandle vhandle[6];
366 
367  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
368  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
369  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
370  vhandle[3] = mesh_.add_vertex(Mesh::Point(3, 0, 0));
371  vhandle[4] = mesh_.add_vertex(Mesh::Point(4, 1, 0));
372  vhandle[5] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
373 
374  // Add three faces
375  std::vector<Mesh::VertexHandle> face_vhandles;
376 
377  face_vhandles.push_back(vhandle[0]);
378  face_vhandles.push_back(vhandle[1]);
379  face_vhandles.push_back(vhandle[2]);
380  mesh_.add_face(face_vhandles);
381 
382  face_vhandles.clear();
383 
384  face_vhandles.push_back(vhandle[2]);
385  face_vhandles.push_back(vhandle[1]);
386  face_vhandles.push_back(vhandle[3]);
387  mesh_.add_face(face_vhandles);
388 
389  face_vhandles.clear();
390 
391  face_vhandles.push_back(vhandle[2]);
392  face_vhandles.push_back(vhandle[3]);
393  face_vhandles.push_back(vhandle[4]);
394  mesh_.add_face(face_vhandles);
395 
396  face_vhandles.clear();
397 
398  face_vhandles.push_back(vhandle[1]);
399  face_vhandles.push_back(vhandle[5]);
400  face_vhandles.push_back(vhandle[3]);
401  mesh_.add_face(face_vhandles);
402 */
403  /* Test setup:
404  *
405  * 0 ------ 2 ------ 4
406  * \ / \ /
407  * \ 0 / \ 2 /
408  * \ / 1 \ /
409  * 1 ------- 3
410  * \ /
411  * \ 3 /
412  * \ /
413  * \ /
414  * 5
415  */
416 
417 /*
418  Mesh::FaceEdgeIter fe_it = mesh_.fe_begin(mesh_.face_handle(1));
419  Mesh::FaceEdgeIter fe_end = mesh_.fe_end(mesh_.face_handle(1));
420 
421  EXPECT_EQ(4, fe_it->idx() ) << "Index wrong in FaceEdgeIter at initialization";
422  EXPECT_TRUE(fe_it) << "Iterator invalid in FaceEdgeIter at initialization";
423  --fe_it;
424  EXPECT_EQ(1, fe_it->idx() ) << "Index wrong in FaceEdgeIter at step 1";
425  EXPECT_TRUE(fe_it) << "Iterator invalid in FaceEdgeIter at step 1";
426  --fe_it;
427  EXPECT_EQ(3, fe_it->idx() ) << "Index wrong in FaceEdgeIter at step 2";
428  EXPECT_TRUE(fe_it) << "Iterator invalid in FaceEdgeIter at step 2";
429  --fe_it;
430  EXPECT_EQ(4, fe_it->idx() ) << "Index wrong in FaceEdgeIter at end";
431  EXPECT_FALSE(fe_it) << "Iterator invalid in FaceEdgeIter at end";
432  EXPECT_TRUE( fe_it == fe_end ) << "End iterator for FaceEdgeIter not matching";
433 
434  Mesh::ConstFaceEdgeIter cfe_it = mesh_.cfe_begin(mesh_.face_handle(1));
435  Mesh::ConstFaceEdgeIter cfe_end = mesh_.cfe_end(mesh_.face_handle(1));
436 
437  EXPECT_EQ(4, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at initialization";
438  EXPECT_TRUE(cfe_it) << "Iterator invalid in ConstFaceEdgeIter at initialization";
439  --cfe_it;
440  EXPECT_EQ(1, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at step 1";
441  EXPECT_TRUE(cfe_it) << "Iterator invalid in ConstFaceEdgeIter at step 1";
442  --cfe_it;
443  EXPECT_EQ(3, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at step 2";
444  EXPECT_TRUE(cfe_it) << "Iterator invalid in ConstFaceEdgeIter at step 2";
445  --cfe_it;
446  EXPECT_EQ(4, cfe_it->idx() ) << "Index wrong in ConstFaceEdgeIter at end";
447  EXPECT_FALSE(cfe_it) << "Iterator invalid in ConstFaceEdgeIter at end";
448  EXPECT_TRUE( cfe_it == cfe_end ) << "End iterator for ConstFaceEdgeIter not matching";
449 
450 }
451 */
OpenMesh::PolyMeshT::ConstFaceEdgeIter
Kernel::ConstFaceEdgeIter ConstFaceEdgeIter
Circulator.
Definition: PolyMeshT.hh:182
OpenMesh::PolyMeshT::FaceEdgeIter
Kernel::FaceEdgeIter FaceEdgeIter
Circulator.
Definition: PolyMeshT.hh:172
OpenMesh::PolyMeshT::Point
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:115
OpenMesh::PolyMeshT::add_vertex
VertexHandle add_vertex(const Point &_p)
Alias for new_vertex(const Point&).
Definition: PolyMeshT.hh:236
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:139