Developer Documentation
unittests_trimesh_circulator_vertex_face.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 OpenMeshTrimeshCirculatorVertexFace : 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  * Small VertexFaceIterator Test with holes in it
37  *
38  * WARNING!!! Basically this is an illegal configuration!
39  * But this way we can still detect if it breaks!
40  */
41 TEST_F(OpenMeshTrimeshCirculatorVertexFace, VertexFaceIterWithHolesIncrement) {
42 
43  mesh_.clear();
44 
45  // Add some vertices
46  Mesh::VertexHandle vhandle[5];
47 
48  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
49  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
50  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
51  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
52  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
53 
54  // Add two 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[1]);
65  face_vhandles.push_back(vhandle[3]);
66  face_vhandles.push_back(vhandle[4]);
67  mesh_.add_face(face_vhandles);
68 
69  /* Test setup:
70  0 ==== 2
71  \ /
72  \ /
73  1
74  / \
75  / \
76  3 ==== 4 */
77 
78  // Iterate around vertex 1 at the middle (with holes in between)
79  Mesh::VertexFaceIter vf_it = mesh_.vf_begin(vhandle[1]);
80  Mesh::VertexFaceIter vf_end = mesh_.vf_end(vhandle[1]);
81  EXPECT_EQ(0, vf_it->idx() ) << "Index wrong in VertexFaceIter at initialization";
82  EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at initialization";
83  ++vf_it ;
84  EXPECT_EQ(1, vf_it->idx() ) << "Index wrong in VertexFaceIter at step 1";
85  EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 1";
86  ++vf_it ;
87  EXPECT_FALSE(vf_it.is_valid() ) << "Index wrong in VertexFaceIter at end";
88  EXPECT_FALSE(vf_it.is_valid()) << "Iterator not invalid in VertexFaceIter at end";
89  EXPECT_TRUE( vf_it == vf_end ) << "End iterator for VertexFaceIter not matching";
90 
91  // Iterate around vertex 1 at the middle (with holes in between) with const iterator
92  Mesh::ConstVertexFaceIter cvf_it = mesh_.cvf_begin(vhandle[1]);
93  Mesh::ConstVertexFaceIter cvf_end = mesh_.cvf_end(vhandle[1]);
94  EXPECT_EQ(0, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at initialization";
95  EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at initialization";
96  ++cvf_it ;
97  EXPECT_EQ(1, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at step one";
98  EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at step one";
99  ++cvf_it ;
100  EXPECT_FALSE(cvf_it.is_valid() ) << "Index wrong in ConstVertexFaceIter at end";
101  EXPECT_FALSE(cvf_it.is_valid()) << "Iterator not invalid in ConstVertexFaceIter at end";
102  EXPECT_TRUE( cvf_it == cvf_end ) << "End iterator for ConstVertexFaceIter not matching";
103 
104 }
105 
106 
107 
108 /*
109  * Small VertexFaceIterator Test without holes in it
110  */
111 TEST_F(OpenMeshTrimeshCirculatorVertexFace, VertexFaceIterWithoutHolesIncrement) {
112 
113  mesh_.clear();
114 
115  // Add some vertices
116  Mesh::VertexHandle vhandle[5];
117 
118  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
119  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
120  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
121  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
122  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
123 
124  // Add two faces
125  std::vector<Mesh::VertexHandle> face_vhandles;
126 
127  face_vhandles.push_back(vhandle[0]);
128  face_vhandles.push_back(vhandle[1]);
129  face_vhandles.push_back(vhandle[2]);
130  mesh_.add_face(face_vhandles);
131 
132  face_vhandles.clear();
133 
134  face_vhandles.push_back(vhandle[1]);
135  face_vhandles.push_back(vhandle[3]);
136  face_vhandles.push_back(vhandle[4]);
137  mesh_.add_face(face_vhandles);
138 
139  face_vhandles.clear();
140 
141  face_vhandles.push_back(vhandle[0]);
142  face_vhandles.push_back(vhandle[3]);
143  face_vhandles.push_back(vhandle[1]);
144  mesh_.add_face(face_vhandles);
145 
146  face_vhandles.clear();
147 
148  face_vhandles.push_back(vhandle[2]);
149  face_vhandles.push_back(vhandle[1]);
150  face_vhandles.push_back(vhandle[4]);
151  mesh_.add_face(face_vhandles);
152 
153  /* Test setup:
154  0 ==== 2
155  |\ 0 /|
156  | \ / |
157  |2 1 3|
158  | / \ |
159  |/ 1 \|
160  3 ==== 4 */
161 
162  mesh_.vf_begin(vhandle[1]);
163 
164  // Iterate around vertex 1 at the middle (with holes in between)
165  Mesh::VertexFaceIter vf_it = mesh_.vf_begin(vhandle[1]);
166  Mesh::VertexFaceIter vf_end = mesh_.vf_end(vhandle[1]);
167  EXPECT_EQ(3, vf_it->idx() ) << "Index wrong in VertexFaceIter at initialization";
168  EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at initialization";
169  ++vf_it ;
170  EXPECT_EQ(1, vf_it->idx() ) << "Index wrong in VertexFaceIter at step 1";
171  EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 1";
172  ++vf_it ;
173  EXPECT_EQ(2, vf_it->idx() ) << "Index wrong in VertexFaceIter at step 2";
174  EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 2";
175  ++vf_it ;
176  EXPECT_EQ(0, vf_it->idx() ) << "Index wrong in VertexFaceIter at step 3";
177  EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 3";
178  ++vf_it ;
179  EXPECT_FALSE(vf_it.is_valid()) << "Iterator not invalid in VertexFaceIter at end";
180  EXPECT_TRUE( vf_it == vf_end ) << "End iterator for VertexFaceIter not matching";
181 
182  // Iterate around vertex 1 at the middle (with holes in between) with const iterator
183  Mesh::ConstVertexFaceIter cvf_it = mesh_.cvf_begin(vhandle[1]);
184  Mesh::ConstVertexFaceIter cvf_end = mesh_.cvf_end(vhandle[1]);
185  EXPECT_EQ(3, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at initialization";
186  EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at initialization";
187  ++cvf_it ;
188  EXPECT_EQ(1, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at step 1";
189  EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at step 1";
190  ++cvf_it ;
191  EXPECT_EQ(2, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at step 2";
192  EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at step 2";
193  ++cvf_it ;
194  EXPECT_EQ(0, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at step 3";
195  EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at step 3";
196  ++cvf_it ;
197  EXPECT_FALSE(cvf_it.is_valid()) << "Iterator not invalid in VertexFaceIter at end";
198  EXPECT_TRUE( cvf_it == cvf_end ) << "End iterator for ConstVertexFaceIter not matching";
199 
200 }
201 
202 
203 /*
204  * Small VertexFaceIterator Test at a boundary vertex
205  */
206 TEST_F(OpenMeshTrimeshCirculatorVertexFace, VertexFaceIterBoundaryIncrement) {
207 
208  mesh_.clear();
209 
210  // Add some vertices
211  Mesh::VertexHandle vhandle[5];
212 
213  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
214  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
215  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
216  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
217  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
218 
219  // Add two faces
220  std::vector<Mesh::VertexHandle> face_vhandles;
221 
222  face_vhandles.push_back(vhandle[0]);
223  face_vhandles.push_back(vhandle[1]);
224  face_vhandles.push_back(vhandle[2]);
225  mesh_.add_face(face_vhandles);
226 
227  face_vhandles.clear();
228 
229  face_vhandles.push_back(vhandle[1]);
230  face_vhandles.push_back(vhandle[3]);
231  face_vhandles.push_back(vhandle[4]);
232  mesh_.add_face(face_vhandles);
233 
234  face_vhandles.clear();
235 
236  face_vhandles.push_back(vhandle[0]);
237  face_vhandles.push_back(vhandle[3]);
238  face_vhandles.push_back(vhandle[1]);
239  mesh_.add_face(face_vhandles);
240 
241  face_vhandles.clear();
242 
243  face_vhandles.push_back(vhandle[2]);
244  face_vhandles.push_back(vhandle[1]);
245  face_vhandles.push_back(vhandle[4]);
246  mesh_.add_face(face_vhandles);
247 
248  /* Test setup:
249  0 ==== 2
250  |\ 0 /|
251  | \ / |
252  |2 1 3|
253  | / \ |
254  |/ 1 \|
255  3 ==== 4 */
256 
257  // Iterate around vertex 1 at the middle (with holes in between)
258  Mesh::VertexFaceIter vf_it = mesh_.vf_begin(vhandle[2]);
259  Mesh::VertexFaceIter vf_end = mesh_.vf_end(vhandle[2]);
260  EXPECT_EQ(3, vf_it->idx() ) << "Index wrong in VertexFaceIter at initialization";
261  EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at initialization";
262  ++vf_it ;
263  EXPECT_EQ(0, vf_it->idx() ) << "Index wrong in VertexFaceIter at step 1";
264  EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 1";
265  ++vf_it ;
266  EXPECT_FALSE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 2";
267  EXPECT_TRUE( vf_it == vf_end ) << "End iterator for VertexFaceIter not matching";
268 }
269 
270 /*
271  * Test if the end iterator stays invalid after one lap
272  * DISABLED as long as the normal iterators using old behavior
273  */
274 //TEST_F(OpenMeshTrimeshCirculatorVertexFace, VertexFaceIterCheckInvalidationAtEnds) {
275 //
276 // mesh_.clear();
277 //
278 // // Add some vertices
279 // Mesh::VertexHandle vhandle[5];
280 //
281 // vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
282 // vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
283 // vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
284 // vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
285 // vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
286 //
287 // // Add two faces
288 // std::vector<Mesh::VertexHandle> face_vhandles;
289 //
290 // face_vhandles.push_back(vhandle[0]);
291 // face_vhandles.push_back(vhandle[1]);
292 // face_vhandles.push_back(vhandle[2]);
293 // Mesh::FaceHandle fh0 = mesh_.add_face(face_vhandles);
294 //
295 // face_vhandles.clear();
296 //
297 // face_vhandles.push_back(vhandle[1]);
298 // face_vhandles.push_back(vhandle[3]);
299 // face_vhandles.push_back(vhandle[4]);
300 // mesh_.add_face(face_vhandles);
301 //
302 // face_vhandles.clear();
303 //
304 // face_vhandles.push_back(vhandle[0]);
305 // face_vhandles.push_back(vhandle[3]);
306 // face_vhandles.push_back(vhandle[1]);
307 // mesh_.add_face(face_vhandles);
308 //
309 // face_vhandles.clear();
310 //
311 // face_vhandles.push_back(vhandle[2]);
312 // face_vhandles.push_back(vhandle[1]);
313 // face_vhandles.push_back(vhandle[4]);
314 // mesh_.add_face(face_vhandles);
315 //
316 // /* Test setup:
317 // 0 ==== 2
318 // |\ 0 /|
319 // | \ / |
320 // |2 1 3|
321 // | / \ |
322 // |/ 1 \|
323 // 3 ==== 4 */
324 //
325 //
326 // // Check if the end iterator stays invalid after end
327 // Mesh::VertexFaceIter endIter = mesh_.vf_end(vhandle[1]);
328 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
329 // ++endIter ;
330 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid after increment";
331 //
332 // // Check if the end iterators becomes valid after decrement
333 // endIter = mesh_.vf_end(vhandle[1]);
334 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
335 // --endIter;
336 // EXPECT_TRUE(endIter.is_valid()) << "EndIter is invalid after decrement";
337 // EXPECT_EQ(0,endIter->idx()) << "EndIter points on the wrong element";
338 //
339 //
340 // // Check if the start iterator decrement is invalid
341 // Mesh::VertexFaceIter startIter = mesh_.vf_begin(vhandle[1]);
342 // EXPECT_TRUE(startIter.is_valid()) << "StartIter is not valid";
343 // --startIter;
344 // EXPECT_FALSE(startIter.is_valid()) << "StartIter decrement is not invalid";
345 //
346 // // Check if the start iterator becomes valid
347 // ++startIter;
348 // EXPECT_TRUE(startIter.is_valid()) << "StarIter is invalid after re-incrementing";
349 // EXPECT_EQ(startIter->idx(), mesh_.vf_begin(vhandle[1])->idx()) << "StartIter points on the wrong element";
350 //
351 //}
352 
353 /*
354  * VertexFaceIterator Test without holes testing decrement
355  * DISABLED as long as the normal iterators using old behavior
356  */
357 //TEST_F(OpenMeshTrimeshCirculatorVertexFace, VertexFaceIterWithoutHolesDecrement) {
358 //
359 // mesh_.clear();
360 //
361 // // Add some vertices
362 // Mesh::VertexHandle vhandle[5];
363 //
364 // vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
365 // vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
366 // vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
367 // vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
368 // vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
369 //
370 // // Add two faces
371 // std::vector<Mesh::VertexHandle> face_vhandles;
372 //
373 // face_vhandles.push_back(vhandle[0]);
374 // face_vhandles.push_back(vhandle[1]);
375 // face_vhandles.push_back(vhandle[2]);
376 // mesh_.add_face(face_vhandles);
377 //
378 // face_vhandles.clear();
379 //
380 // face_vhandles.push_back(vhandle[1]);
381 // face_vhandles.push_back(vhandle[3]);
382 // face_vhandles.push_back(vhandle[4]);
383 // mesh_.add_face(face_vhandles);
384 //
385 // face_vhandles.clear();
386 //
387 // face_vhandles.push_back(vhandle[0]);
388 // face_vhandles.push_back(vhandle[3]);
389 // face_vhandles.push_back(vhandle[1]);
390 // mesh_.add_face(face_vhandles);
391 //
392 // face_vhandles.clear();
393 //
394 // face_vhandles.push_back(vhandle[2]);
395 // face_vhandles.push_back(vhandle[1]);
396 // face_vhandles.push_back(vhandle[4]);
397 // mesh_.add_face(face_vhandles);
398 //
399 // /* Test setup:
400 // 0 ==== 2
401 // |\ 0 /|
402 // | \ / |
403 // |2 1 3|
404 // | / \ |
405 // |/ 1 \|
406 // 3 ==== 4 */
407 //
408 // mesh_.vf_begin(vhandle[1]);
409 //
410 // // Iterate around vertex 1 at the middle
411 // Mesh::VertexFaceIter vf_it = mesh_.vf_begin(vhandle[1]);
412 // std::advance(vf_it,3);
413 // Mesh::VertexFaceIter vf_end = mesh_.vf_begin(vhandle[1]);
414 // --vf_end;
415 //
416 // EXPECT_EQ(0, vf_it->idx() ) << "Index wrong in VertexFaceIter at initialization";
417 // EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at initialization";
418 // --vf_it ;
419 // EXPECT_EQ(2, vf_it->idx() ) << "Index wrong in VertexFaceIter at step 1";
420 // EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 1";
421 // --vf_it ;
422 // EXPECT_EQ(1, vf_it->idx() ) << "Index wrong in VertexFaceIter at step 2";
423 // EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 2";
424 // --vf_it ;
425 // EXPECT_EQ(3, vf_it->idx() ) << "Index wrong in VertexFaceIter at step 3";
426 // EXPECT_TRUE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 3";
427 // --vf_it ;
428 // EXPECT_EQ(0, vf_it->idx() ) << "Index wrong in VertexFaceIter at end";
429 // EXPECT_FALSE(vf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 2";
430 // EXPECT_TRUE( vf_it == vf_end ) << "End iterator for VertexFaceIter not matching";
431 //
432 // // Iterate around vertex 1 at the middle with const iterator
433 // Mesh::ConstVertexFaceIter cvf_it = mesh_.cvf_begin(vhandle[1]);
434 // std::advance(cvf_it,3);
435 // Mesh::ConstVertexFaceIter cvf_end = mesh_.cvf_begin(vhandle[1]);
436 // --cvf_end;
437 //
438 // EXPECT_EQ(0, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at initialization";
439 // EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at initialization";
440 // --cvf_it ;
441 // EXPECT_EQ(2, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at step 1";
442 // EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at step 1";
443 // --cvf_it ;
444 // EXPECT_EQ(1, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at step 2";
445 // EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at step 2";
446 // --cvf_it ;
447 // EXPECT_EQ(3, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at step 3";
448 // EXPECT_TRUE(cvf_it.is_valid()) << "Iterator invalid in ConstVertexFaceIter at step 3";
449 // --cvf_it ;
450 // EXPECT_EQ(0, cvf_it->idx() ) << "Index wrong in ConstVertexFaceIter at end";
451 // EXPECT_FALSE(cvf_it.is_valid()) << "Iterator invalid in VertexFaceIter at step 2";
452 // EXPECT_TRUE( cvf_it == cvf_end ) << "End iterator for ConstVertexFaceIter not matching";
453 //
454 //}
455 
456 /*
457  * Test CW and CCW iterators
458  */
459 TEST_F(OpenMeshTrimeshCirculatorVertexFace, CWAndCCWCheck) {
460 
461  mesh_.clear();
462 
463  // Add some vertices
464  Mesh::VertexHandle vhandle[5];
465 
466  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
467  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
468  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
469  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
470  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
471 
472  // Add two faces
473  std::vector<Mesh::VertexHandle> face_vhandles;
474 
475  face_vhandles.push_back(vhandle[0]);
476  face_vhandles.push_back(vhandle[1]);
477  face_vhandles.push_back(vhandle[2]);
478 
479  mesh_.add_face(face_vhandles);
480 
481  face_vhandles.clear();
482 
483  face_vhandles.push_back(vhandle[1]);
484  face_vhandles.push_back(vhandle[3]);
485  face_vhandles.push_back(vhandle[4]);
486  mesh_.add_face(face_vhandles);
487 
488  face_vhandles.clear();
489 
490  face_vhandles.push_back(vhandle[0]);
491  face_vhandles.push_back(vhandle[3]);
492  face_vhandles.push_back(vhandle[1]);
493  mesh_.add_face(face_vhandles);
494 
495  face_vhandles.clear();
496 
497  face_vhandles.push_back(vhandle[2]);
498  face_vhandles.push_back(vhandle[1]);
499  face_vhandles.push_back(vhandle[4]);
500  mesh_.add_face(face_vhandles);
501 
502  /* Test setup:
503  0 ==== 2
504  |\ 0 /|
505  | \ / |
506  |2 1 3|
507  | / \ |
508  |/ 1 \|
509  3 ==== 4 */
510 
511 
512  int indices[5] = {3, 0, 2, 1, 3};
513  int rev_indices[5];
514  std::reverse_copy(indices,indices+5,rev_indices);
515 
516  Mesh::VertexHandle vh = vhandle[1];
517 
518  //CCW
519  Mesh::VertexFaceCCWIter vf_ccwit = mesh_.vf_ccwbegin(vh);
520  Mesh::VertexFaceCCWIter vf_ccwend = mesh_.vf_ccwend(vh);
521  size_t i = 0;
522  for (;vf_ccwit != vf_ccwend; ++vf_ccwit, ++i)
523  {
524  EXPECT_EQ(indices[i], vf_ccwit->idx()) << "Index wrong in VertexFaceCCWIter";
525  }
526 
527  EXPECT_FALSE(vf_ccwit.is_valid()) << "Iterator invalid in VertexFaceCCWIter at end";
528  EXPECT_TRUE( vf_ccwit == vf_ccwend ) << "End iterator for VertexFaceCCWIter not matching";
529 
530  //constant CCW
531  Mesh::ConstVertexFaceCCWIter cvf_ccwit = mesh_.cvf_ccwbegin(vh);
532  Mesh::ConstVertexFaceCCWIter cvf_ccwend = mesh_.cvf_ccwend(vh);
533  i = 0;
534  for (;cvf_ccwit != cvf_ccwend; ++cvf_ccwit, ++i)
535  {
536  EXPECT_EQ(indices[i], cvf_ccwit->idx()) << "Index wrong in ConstVertexFaceCCWIter";
537  }
538 
539  EXPECT_FALSE(cvf_ccwit.is_valid()) << "Iterator invalid in ConstVertexFaceCCWIter at end";
540  EXPECT_TRUE( cvf_ccwit == cvf_ccwend ) << "End iterator for ConstVertexFaceCCWIter not matching";
541 
542  //CW
543  Mesh::VertexFaceCWIter vf_cwit = mesh_.vf_cwbegin(vh);
544  Mesh::VertexFaceCWIter vf_cwend = mesh_.vf_cwend(vh);
545  i = 0;
546  for (;vf_cwit != vf_cwend; ++vf_cwit, ++i)
547  {
548  EXPECT_EQ(rev_indices[i], vf_cwit->idx()) << "Index wrong in VertexFaceCWIter";
549  }
550  EXPECT_FALSE(vf_cwit.is_valid()) << "Iterator invalid in VertexFaceCWIter at end";
551  EXPECT_TRUE( vf_cwit == vf_cwend ) << "End iterator for VertexFaceCWIter not matching";
552 
553  //constant CW
554  Mesh::ConstVertexFaceCWIter cvf_cwit = mesh_.cvf_cwbegin(vh);
555  Mesh::ConstVertexFaceCWIter cvf_cwend = mesh_.cvf_cwend(vh);
556  i = 0;
557  for (;cvf_cwit != cvf_cwend; ++cvf_cwit, ++i)
558  {
559  EXPECT_EQ(rev_indices[i], cvf_cwit->idx()) << "Index wrong in ConstVertexFaceCWIter";
560  }
561  EXPECT_FALSE(cvf_cwit.is_valid()) << "Iterator invalid in ConstVertexFaceCWIter at end";
562  EXPECT_TRUE( cvf_cwit == cvf_cwend ) << "End iterator for ConstVertexFaceCWIter not matching";
563 
564  /*
565  * conversion properties:
566  * a) cw_begin == CWIter(ccw_begin())
567  * b) cw_iter->idx() == CCWIter(cw_iter)->idx() for valid iterators
568  * c) --cw_iter == CWIter(++ccwIter) for valid iterators
569  * d) cw_end == CWIter(ccw_end()) => --cw_end != CWIter(++ccw_end()) *
570  */
571  Mesh::VertexFaceCWIter vf_cwIter = mesh_.vf_cwbegin(vh);
572  // a)
573  EXPECT_TRUE( vf_cwIter == Mesh::VertexFaceCWIter(mesh_.vf_ccwbegin(vh)) ) << "ccw to cw conversion failed";
574  EXPECT_TRUE( Mesh::VertexFaceCCWIter(vf_cwIter) == mesh_.vf_ccwbegin(vh) ) << "cw to ccw conversion failed";
575  // b)
576  EXPECT_EQ( vf_cwIter->idx(), Mesh::VertexFaceCCWIter(vf_cwIter)->idx()) << "iterators doesnt point on the same element";
577  // c)
578  ++vf_cwIter;
579  vf_ccwend = mesh_.vf_ccwend(vh);
580  --vf_ccwend;
581  EXPECT_EQ(vf_cwIter->idx(),vf_ccwend->idx()) << "iteratoes are not equal after inc/dec";
582  // additional conversion check
583  vf_ccwend = Mesh::VertexFaceCCWIter(vf_cwIter);
584  EXPECT_EQ(vf_cwIter->idx(),vf_ccwend->idx())<< "iterators doesnt point on the same element";
585  // d)
586  vf_cwIter = Mesh::VertexFaceCWIter(mesh_.vf_ccwend(vh));
587  EXPECT_FALSE(vf_cwIter.is_valid()) << "end iterator is not invalid";
588  EXPECT_TRUE(Mesh::VertexFaceCCWIter(mesh_.vf_cwend(vh)) == mesh_.vf_ccwend(vh)) << "end iterators are not equal";
589 
590 
591 }
592 
593 
594 }
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:139
OpenMesh::PolyMeshT::VertexFaceIter
Kernel::VertexFaceIter VertexFaceIter
Circulator.
Definition: PolyMeshT.hh:169
OpenMesh::PolyMeshT::ConstVertexFaceIter
Kernel::ConstVertexFaceIter ConstVertexFaceIter
Circulator.
Definition: PolyMeshT.hh:179
OpenMesh::PolyMeshT::add_vertex
VertexHandle add_vertex(const Point &_p)
Alias for new_vertex(const Point&).
Definition: PolyMeshT.hh:236
OpenMesh::PolyMeshT::Point
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:115