Developer Documentation
unittests_trimesh_circulator_vertex_ohalfedge.cc
1 #include <gtest/gtest.h>
2 #include <Unittests/unittests_common.hh>
3 
4 #include <iostream>
5 
6 namespace {
7 
8 class OpenMeshTrimeshCirculatorVertexOHalfEdge : public OpenMeshBase {
9 
10  protected:
11 
12  // This function is called before each test is run
13  virtual void SetUp() {
14  }
15 
16  // This function is called after all tests are through
17  virtual void TearDown() {
18 
19  // Do some final stuff with the member data here...
20  }
21 
22 
23  // Member already defined in OpenMeshBase
24  //Mesh mesh_;
25 };
26 
27 /*
28  * ====================================================================
29  * Define tests below
30  * ====================================================================
31  */
32 
33 
34 /*
35  * Small VertexFaceOutgoingHalfedgeIterator Test without holes in it
36  */
37 TEST_F(OpenMeshTrimeshCirculatorVertexOHalfEdge, VertexOutgoingHalfedgeWithoutHolesIncrement) {
38 
39  mesh_.clear();
40 
41  // Add some vertices
42  Mesh::VertexHandle vhandle[5];
43 
44  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
45  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
46  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
47  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
48  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
49 
50  // Add two faces
51  std::vector<Mesh::VertexHandle> face_vhandles;
52 
53  face_vhandles.push_back(vhandle[0]);
54  face_vhandles.push_back(vhandle[1]);
55  face_vhandles.push_back(vhandle[2]);
56  mesh_.add_face(face_vhandles);
57 
58  face_vhandles.clear();
59 
60  face_vhandles.push_back(vhandle[1]);
61  face_vhandles.push_back(vhandle[3]);
62  face_vhandles.push_back(vhandle[4]);
63  mesh_.add_face(face_vhandles);
64 
65  face_vhandles.clear();
66 
67  face_vhandles.push_back(vhandle[0]);
68  face_vhandles.push_back(vhandle[3]);
69  face_vhandles.push_back(vhandle[1]);
70  mesh_.add_face(face_vhandles);
71 
72  face_vhandles.clear();
73 
74  face_vhandles.push_back(vhandle[2]);
75  face_vhandles.push_back(vhandle[1]);
76  face_vhandles.push_back(vhandle[4]);
77  mesh_.add_face(face_vhandles);
78 
79  /* Test setup:
80  0 ==== 2
81  |\ 0 /|
82  | \ / |
83  |2 1 3|
84  | / \ |
85  |/ 1 \|
86  3 ==== 4 */
87  // Starting halfedge is 1->4
88 
89 
90  // Iterate around vertex 1 at the middle (with holes in between)
91  Mesh::VertexOHalfedgeIter voh_it = mesh_.voh_begin(vhandle[1]);
92  Mesh::VertexOHalfedgeIter voh_end = mesh_.voh_end(vhandle[1]);
93 
94  EXPECT_EQ(11, voh_it->idx() ) << "Index wrong in VertexOHalfedgeIter begin at initialization";
95  EXPECT_EQ(11, voh_end->idx() ) << "Index wrong in VertexOHalfedgeIter end at initialization";
96  EXPECT_EQ(3, mesh_.face_handle(*voh_it).idx() ) << "Corresponding face Index wrong in VertexOHalfedgeIter begin at initialization";
97  EXPECT_TRUE(voh_it.is_valid()) << "Iterator invalid in VertexOHalfedgeIter at initialization";
98 
99  ++voh_it ;
100 
101  EXPECT_EQ(6, voh_it->idx() ) << "Index wrong in VertexOHalfedgeIter step 1";
102  EXPECT_EQ(1, mesh_.face_handle(*voh_it).idx() ) << "Corresponding face Index wrong in VertexOHalfedgeIter step 1";
103  EXPECT_TRUE(voh_it.is_valid()) << "Iterator invalid in VertexOHalfedgeIter at step 1";
104 
105  ++voh_it ;
106 
107  EXPECT_EQ(1, voh_it->idx() ) << "Index wrong in VertexOHalfedgeIter step 2";
108  EXPECT_EQ(2, mesh_.face_handle(*voh_it).idx() ) << "Corresponding face Index wrong in VertexOHalfedgeIter step 2";
109  EXPECT_TRUE(voh_it.is_valid()) << "Iterator invalid in VertexOHalfedgeIter at step 2";
110 
111  ++voh_it ;
112 
113  EXPECT_EQ(2, voh_it->idx() ) << "Index wrong in VertexOHalfedgeIter step 3";
114  EXPECT_EQ(0, mesh_.face_handle(*voh_it).idx() ) << "Corresponding face Index wrong in VertexOHalfedgeIter step 3";
115  EXPECT_TRUE(voh_it.is_valid()) << "Iterator invalid in VertexOHalfedgeIter at step 3";
116 
117  ++voh_it ;
118 
119  EXPECT_EQ(11, voh_it->idx() ) << "Index wrong in VertexOHalfedgeIter step 4";
120  EXPECT_EQ(3, mesh_.face_handle(*voh_it).idx() ) << "Corresponding face Index wrong in VertexOHalfedgeIter step 4";
121  EXPECT_FALSE(voh_it.is_valid()) << "Iterator still valid in VertexOHalfedgeIter at step 4";
122  EXPECT_TRUE( voh_it == voh_end ) << "Miss matched end iterator";
123 
124  // Iterate around vertex 1 at the middle (with holes in between)
125  Mesh::ConstVertexOHalfedgeIter cvoh_it = mesh_.cvoh_begin(vhandle[1]);
126  Mesh::ConstVertexOHalfedgeIter cvoh_end = mesh_.cvoh_end(vhandle[1]);
127 
128  EXPECT_EQ(11, cvoh_it->idx() ) << "Index wrong in ConstVertexOHalfedgeIter begin at initialization";
129  EXPECT_EQ(11, cvoh_end->idx() ) << "Index wrong in ConstVertexOHalfedgeIter end at initialization";
130  EXPECT_EQ(3, mesh_.face_handle(*cvoh_it).idx() ) << "Corresponding face Index wrong in ConstVertexOHalfedgeIter begin at initialization";
131  EXPECT_TRUE(cvoh_it.is_valid()) << "Iterator invalid in ConstVertexOHalfedgeIter at initialization";
132 
133  ++cvoh_it ;
134 
135  EXPECT_EQ(6, cvoh_it->idx() ) << "Index wrong in ConstVertexOHalfedgeIter step 1";
136  EXPECT_EQ(1, mesh_.face_handle(*cvoh_it).idx() ) << "Corresponding face Index wrong in ConstVertexOHalfedgeIter step 1";
137  EXPECT_TRUE(cvoh_it.is_valid()) << "Iterator invalid in ConstVertexOHalfedgeIter at step 1";
138 
139  ++cvoh_it ;
140 
141  EXPECT_EQ(1, cvoh_it->idx() ) << "Index wrong in ConstVertexOHalfedgeIter step 2";
142  EXPECT_EQ(2, mesh_.face_handle(*cvoh_it).idx() ) << "Corresponding face Index wrong in ConstVertexOHalfedgeIter step 2";
143  EXPECT_TRUE(cvoh_it.is_valid()) << "Iterator invalid in ConstVertexOHalfedgeIter at step 2";
144 
145  ++cvoh_it ;
146 
147  EXPECT_EQ(2, cvoh_it->idx() ) << "Index wrong in ConstVertexOHalfedgeIter step 3";
148  EXPECT_EQ(0, mesh_.face_handle(*cvoh_it).idx() ) << "Corresponding face Index wrong in ConstVertexOHalfedgeIter step 3";
149  EXPECT_TRUE(cvoh_it.is_valid()) << "Iterator invalid in ConstVertexOHalfedgeIter at step 3";
150 
151  ++cvoh_it ;
152 
153  EXPECT_EQ(11, cvoh_it->idx() ) << "Index wrong in ConstVertexOHalfedgeIter step 4";
154  EXPECT_EQ(3, mesh_.face_handle(*cvoh_it).idx() ) << "Corresponding face Index wrong in ConstVertexOHalfedgeIter step 4";
155  EXPECT_FALSE(cvoh_it.is_valid()) << "Iterator still valid in ConstVertexOHalfedgeIter at step 4";
156  EXPECT_TRUE( cvoh_it == cvoh_end ) << "Miss matched end iterator";
157 
158 }
159 
160 /*
161  * Small VertexFaceOutgoingHalfedgeIterator Test
162  */
163 TEST_F(OpenMeshTrimeshCirculatorVertexOHalfEdge, VertexOutgoingHalfedgeBoundaryIncrement) {
164 
165  mesh_.clear();
166 
167  // Add some vertices
168  Mesh::VertexHandle vhandle[5];
169 
170  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
171  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
172  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
173  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
174  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
175 
176  // Add two faces
177  std::vector<Mesh::VertexHandle> face_vhandles;
178 
179  face_vhandles.push_back(vhandle[0]);
180  face_vhandles.push_back(vhandle[1]);
181  face_vhandles.push_back(vhandle[2]);
182  mesh_.add_face(face_vhandles);
183 
184  face_vhandles.clear();
185 
186  face_vhandles.push_back(vhandle[1]);
187  face_vhandles.push_back(vhandle[3]);
188  face_vhandles.push_back(vhandle[4]);
189  mesh_.add_face(face_vhandles);
190 
191  face_vhandles.clear();
192 
193  face_vhandles.push_back(vhandle[0]);
194  face_vhandles.push_back(vhandle[3]);
195  face_vhandles.push_back(vhandle[1]);
196  mesh_.add_face(face_vhandles);
197 
198  face_vhandles.clear();
199 
200  face_vhandles.push_back(vhandle[2]);
201  face_vhandles.push_back(vhandle[1]);
202  face_vhandles.push_back(vhandle[4]);
203  mesh_.add_face(face_vhandles);
204 
205  /* Test setup:
206  0 ==== 2
207  |\ 0 /|
208  | \ / |
209  |2 1 3|
210  | / \ |
211  |/ 1 \|
212  3 ==== 4 */
213  // Starting halfedge is 1->4
214 
215 
216  // Iterate around vertex 1 at the middle (with holes in between)
217  Mesh::VertexOHalfedgeIter voh_it = mesh_.voh_begin(vhandle[2]);
218  Mesh::VertexOHalfedgeIter voh_end = mesh_.voh_end(vhandle[2]);
219 
220  EXPECT_EQ(15, voh_it->idx() ) << "Index wrong in VertexOHalfedgeIter begin at initialization";
221  EXPECT_EQ(15, voh_end->idx() ) << "Index wrong in VertexOHalfedgeIter end at initialization";
222  EXPECT_EQ(-1, mesh_.face_handle(*voh_it).idx() ) << "Corresponding face Index wrong in VertexOHalfedgeIter begin at initialization";
223  EXPECT_TRUE(voh_it.is_valid()) << "Iterator invalid in VertexOHalfedgeIter at initialization";
224 
225  ++voh_it ;
226 
227  EXPECT_EQ(3, voh_it->idx() ) << "Index wrong in VertexOHalfedgeIter step 1";
228  EXPECT_EQ(3, mesh_.face_handle(*voh_it).idx() ) << "Corresponding face Index wrong in VertexOHalfedgeIter step 1";
229  EXPECT_TRUE(voh_it.is_valid()) << "Iterator invalid in VertexOHalfedgeIter at step 1";
230 
231  ++voh_it ;
232 
233  EXPECT_EQ(4, voh_it->idx() ) << "Index wrong in VertexOHalfedgeIter step 2";
234  EXPECT_EQ(0, mesh_.face_handle(*voh_it).idx() ) << "Corresponding face Index wrong in VertexOHalfedgeIter step 2";
235  EXPECT_TRUE(voh_it.is_valid()) << "Iterator invalid in VertexOHalfedgeIter at step 2";
236 
237  ++voh_it ;
238 
239  EXPECT_EQ(15, voh_it->idx() ) << "Index wrong in VertexOHalfedgeIter step 3";
240  EXPECT_EQ(-1, mesh_.face_handle(*voh_it).idx() ) << "Corresponding face Index wrong in VertexOHalfedgeIter step 3";
241  EXPECT_FALSE(voh_it.is_valid()) << "Iterator still valid in VertexOHalfedgeIter at step 3";
242  EXPECT_TRUE( voh_it == voh_end ) << "Miss matched end iterator";
243 
244 }
245 
246 
247 
248 /*
249  * Small Test to check dereferencing the iterator
250  * No real result
251  */
252 TEST_F(OpenMeshTrimeshCirculatorVertexOHalfEdge, VertexOutgoingHalfedgeDereferenceIncrement) {
253 
254  mesh_.clear();
255 
256  // Add some vertices
257  Mesh::VertexHandle vhandle[5];
258 
259  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
260  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
261  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
262  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
263  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
264 
265  std::vector<Mesh::VertexHandle> face_vhandles;
266 
267  face_vhandles.push_back(vhandle[0]);
268  face_vhandles.push_back(vhandle[1]);
269  face_vhandles.push_back(vhandle[2]);
270  mesh_.add_face(face_vhandles);
271 
272  face_vhandles.clear();
273 
274  face_vhandles.push_back(vhandle[1]);
275  face_vhandles.push_back(vhandle[3]);
276  face_vhandles.push_back(vhandle[4]);
277  mesh_.add_face(face_vhandles);
278 
279  face_vhandles.clear();
280 
281  face_vhandles.push_back(vhandle[0]);
282  face_vhandles.push_back(vhandle[3]);
283  face_vhandles.push_back(vhandle[1]);
284  mesh_.add_face(face_vhandles);
285 
286  face_vhandles.clear();
287 
288  face_vhandles.push_back(vhandle[2]);
289  face_vhandles.push_back(vhandle[1]);
290  face_vhandles.push_back(vhandle[4]);
291  mesh_.add_face(face_vhandles);
292 
293  /* Test setup:
294  0 ==== 2
295  |\ 0 /|
296  | \ / |
297  |2 1 3|
298  | / \ |
299  |/ 1 \|
300  3 ==== 4 */
301 
302  // Iterate around vertex 1 at the middle (with holes in between)
303  Mesh::VertexOHalfedgeIter voh_it = mesh_.voh_iter(vhandle[1]);
304 
305  // TODO: If called without handle, it won't build
306  Mesh::EdgeHandle eh = mesh_.edge_handle(*voh_it);
307  Mesh::HalfedgeHandle heh = *voh_it;
308  Mesh::VertexHandle vh2 = mesh_.to_vertex_handle(*voh_it);
309 
310  EXPECT_EQ(eh.idx() , 5 ) << "Wrong edge handle after dereferencing";
311  EXPECT_EQ(heh.idx() , 11 ) << "Wrong half edge handle after dereferencing";
312  EXPECT_EQ(vh2.idx() , 4 ) << "Wrong vertex handle after dereferencing";
313 
314 }
315 
316 /*
317  * Test if the end iterator stays invalid after one lap
318  * DISABLED as long as the normal iterators using old behavior
319  */
320 //TEST_F(OpenMeshTrimeshCirculatorVertexOHalfEdge, VertexOHalfEdgeIterCheckInvalidationAtEnds) {
321 //
322 // mesh_.clear();
323 //
324 // // Add some vertices
325 // Mesh::VertexHandle vhandle[5];
326 //
327 // vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
328 // vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
329 // vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
330 // vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
331 // vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
332 //
333 // // Add two faces
334 // std::vector<Mesh::VertexHandle> face_vhandles;
335 //
336 // face_vhandles.push_back(vhandle[0]);
337 // face_vhandles.push_back(vhandle[1]);
338 // face_vhandles.push_back(vhandle[2]);
339 // Mesh::FaceHandle fh0 = mesh_.add_face(face_vhandles);
340 //
341 // face_vhandles.clear();
342 //
343 // face_vhandles.push_back(vhandle[1]);
344 // face_vhandles.push_back(vhandle[3]);
345 // face_vhandles.push_back(vhandle[4]);
346 // mesh_.add_face(face_vhandles);
347 //
348 // face_vhandles.clear();
349 //
350 // face_vhandles.push_back(vhandle[0]);
351 // face_vhandles.push_back(vhandle[3]);
352 // face_vhandles.push_back(vhandle[1]);
353 // mesh_.add_face(face_vhandles);
354 //
355 // face_vhandles.clear();
356 //
357 // face_vhandles.push_back(vhandle[2]);
358 // face_vhandles.push_back(vhandle[1]);
359 // face_vhandles.push_back(vhandle[4]);
360 // mesh_.add_face(face_vhandles);
361 //
362 // /* Test setup:
363 // 0 ==== 2
364 // |\ 0 /|
365 // | \ / |
366 // |2 1 3|
367 // | / \ |
368 // |/ 1 \|
369 // 3 ==== 4 */
370 //
371 //
372 // // Check if the end iterator stays invalid after end
373 // Mesh::VertexOHalfedgeIter endIter = mesh_.voh_end(vhandle[1]);
374 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
375 // ++endIter ;
376 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid after increment";
377 //
378 // endIter = mesh_.voh_end(vhandle[1]);
379 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
380 // --endIter;
381 // EXPECT_TRUE(endIter.is_valid()) << "EndIter is invalid after decrement";
382 // EXPECT_EQ(2,endIter->idx()) << "EndIter points on the wrong element";
383 //
384 //
385 // // Check if the start iterator decrement is invalid
386 // Mesh::VertexOHalfedgeIter startIter = mesh_.voh_begin(vhandle[1]);
387 // EXPECT_TRUE(startIter.is_valid()) << "StartIter is not valid";
388 // --startIter;
389 // EXPECT_FALSE(startIter.is_valid()) << "StartIter decrement is not invalid";
390 //
391 // // Check if the start iterator becomes valid
392 // ++startIter;
393 // EXPECT_TRUE(startIter.is_valid()) << "StartIter is invalid after re-incrementing";
394 // EXPECT_EQ(startIter->idx(), mesh_.voh_begin(vhandle[1])->idx()) << "StartIter points on the wrong element";
395 //
396 //}
397 
398 /*
399  * Test CW and CCW iterators
400  */
401 TEST_F(OpenMeshTrimeshCirculatorVertexOHalfEdge, CWAndCCWCheck) {
402 
403  mesh_.clear();
404 
405  // Add some vertices
406  Mesh::VertexHandle vhandle[5];
407 
408  vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
409  vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
410  vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
411  vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
412  vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
413 
414  // Add two faces
415  std::vector<Mesh::VertexHandle> face_vhandles;
416 
417  face_vhandles.push_back(vhandle[0]);
418  face_vhandles.push_back(vhandle[1]);
419  face_vhandles.push_back(vhandle[2]);
420  mesh_.add_face(face_vhandles);
421 
422  face_vhandles.clear();
423 
424  face_vhandles.push_back(vhandle[1]);
425  face_vhandles.push_back(vhandle[3]);
426  face_vhandles.push_back(vhandle[4]);
427  mesh_.add_face(face_vhandles);
428 
429  face_vhandles.clear();
430 
431  face_vhandles.push_back(vhandle[0]);
432  face_vhandles.push_back(vhandle[3]);
433  face_vhandles.push_back(vhandle[1]);
434  mesh_.add_face(face_vhandles);
435 
436  face_vhandles.clear();
437 
438  face_vhandles.push_back(vhandle[2]);
439  face_vhandles.push_back(vhandle[1]);
440  face_vhandles.push_back(vhandle[4]);
441  mesh_.add_face(face_vhandles);
442 
443  /* Test setup:
444  0 ==== 2
445  |\ 0 /|
446  | \ / |
447  |2 1 3|
448  | / \ |
449  |/ 1 \|
450  3 ==== 4 */
451 
452 
453  int indices[5] = {11, 2, 1, 6, 11};
454  int rev_indices[5];
455  std::reverse_copy(indices,indices+5,rev_indices);
456 
457  Mesh::VertexHandle vh = vhandle[1];
458 
459  //CCW
460  Mesh::VertexOHalfedgeCCWIter voh_ccwit = mesh_.voh_ccwbegin(vh);
461  Mesh::VertexOHalfedgeCCWIter voh_ccwend = mesh_.voh_ccwend(vh);
462  size_t i = 0;
463  for (;voh_ccwit != voh_ccwend; ++voh_ccwit, ++i)
464  {
465  EXPECT_EQ(indices[i], voh_ccwit->idx()) << "Index wrong in VertexOHalfedgeCCWIter";
466  }
467 
468  EXPECT_FALSE(voh_ccwit.is_valid()) << "Iterator invalid in VertexOHalfedgeCCWIter at end";
469  EXPECT_TRUE( voh_ccwit == voh_ccwend ) << "End iterator for VertexOHalfedgeCCWIter not matching";
470 
471  //constant CCW
472  Mesh::ConstVertexOHalfedgeCCWIter cvoh_ccwit = mesh_.cvoh_ccwbegin(vh);
473  Mesh::ConstVertexOHalfedgeCCWIter cvoh_ccwend = mesh_.cvoh_ccwend(vh);
474  i = 0;
475  for (;cvoh_ccwit != cvoh_ccwend; ++cvoh_ccwit, ++i)
476  {
477  EXPECT_EQ(indices[i], cvoh_ccwit->idx()) << "Index wrong in ConstVertexOHalfedgeCCWIter";
478  }
479 
480  EXPECT_FALSE(cvoh_ccwit.is_valid()) << "Iterator invalid in ConstVertexOHalfedgeCCWIter at end";
481  EXPECT_TRUE( cvoh_ccwit == cvoh_ccwend ) << "End iterator for ConstVertexOHalfedgeCCWIter not matching";
482 
483  //CW
484  Mesh::VertexOHalfedgeCWIter voh_cwit = mesh_.voh_cwbegin(vh);
485  Mesh::VertexOHalfedgeCWIter voh_cwend = mesh_.voh_cwend(vh);
486  i = 0;
487  for (;voh_cwit != voh_cwend; ++voh_cwit, ++i)
488  {
489  EXPECT_EQ(rev_indices[i], voh_cwit->idx()) << "Index wrong in VertexOHalfedgeCWIter";
490  }
491  EXPECT_FALSE(voh_cwit.is_valid()) << "Iterator invalid in VertexOHalfedgeCWIter at end";
492  EXPECT_TRUE( voh_cwit == voh_cwend ) << "End iterator for VertexOHalfedgeCWIter not matching";
493 
494  //constant CW
495  Mesh::ConstVertexOHalfedgeCWIter cvoh_cwit = mesh_.cvoh_cwbegin(vh);
496  Mesh::ConstVertexOHalfedgeCWIter cvoh_cwend = mesh_.cvoh_cwend(vh);
497  i = 0;
498  for (;cvoh_cwit != cvoh_cwend; ++cvoh_cwit, ++i)
499  {
500  EXPECT_EQ(rev_indices[i], cvoh_cwit->idx()) << "Index wrong in ConstVertexOHalfedgeCWIter";
501  }
502  EXPECT_FALSE(cvoh_cwit.is_valid()) << "Iterator invalid in ConstVertexOHalfedgeCWIter at end";
503  EXPECT_TRUE( cvoh_cwit == cvoh_cwend ) << "End iterator for ConstVertexOHalfedgeCWIter not matching";
504 
505  /*
506  * conversion properties:
507  * a) cw_begin == CWIter(ccw_begin())
508  * b) cw_iter->idx() == CCWIter(cw_iter)->idx() for valid iterators
509  * c) --cw_iter == CWIter(++ccwIter) for valid iterators
510  * d) cw_end == CWIter(ccw_end()) => --cw_end != CWIter(++ccw_end()) *
511  */
512  Mesh::VertexOHalfedgeCWIter voh_cwIter = mesh_.voh_cwbegin(vh);
513  // a)
514  EXPECT_TRUE( voh_cwIter == Mesh::VertexOHalfedgeCWIter(mesh_.voh_ccwbegin(vh)) ) << "ccw to cw conversion failed";
515  EXPECT_TRUE( Mesh::VertexOHalfedgeCCWIter(voh_cwIter) == mesh_.voh_ccwbegin(vh) ) << "cw to ccw conversion failed";
516  // b)
517  EXPECT_EQ( voh_cwIter->idx(), Mesh::VertexOHalfedgeCCWIter(voh_cwIter)->idx()) << "iterators doesnt point on the same element";
518  // c)
519  ++voh_cwIter;
520  voh_ccwend = mesh_.voh_ccwend(vh);
521  --voh_ccwend;
522  EXPECT_EQ(voh_cwIter->idx(),voh_ccwend->idx()) << "iteratoes are not equal after inc/dec";
523  // additional conversion check
524  voh_ccwend = Mesh::VertexOHalfedgeCCWIter(voh_cwIter);
525  EXPECT_EQ(voh_cwIter->idx(),voh_ccwend->idx())<< "iterators doesnt point on the same element";
526  // d)
527  voh_cwIter = Mesh::VertexOHalfedgeCWIter(mesh_.voh_ccwend(vh));
528  EXPECT_FALSE(voh_cwIter.is_valid()) << "end iterator is not invalid";
529  EXPECT_TRUE(Mesh::VertexOHalfedgeCCWIter(mesh_.voh_cwend(vh)) == mesh_.voh_ccwend(vh)) << "end iterators are not equal";
530 
531 
532 }
533 
534 
535 
536 
537 }
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:139
OpenMesh::PolyMeshT::ConstVertexOHalfedgeIter
Kernel::ConstVertexOHalfedgeIter ConstVertexOHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:176
OpenMesh::PolyMeshT::add_vertex
VertexHandle add_vertex(const Point &_p)
Alias for new_vertex(const Point&).
Definition: PolyMeshT.hh:236
OpenMesh::PolyMeshT::VertexOHalfedgeIter
Kernel::VertexOHalfedgeIter VertexOHalfedgeIter
Circulator.
Definition: PolyMeshT.hh:166
OpenMesh::PolyMeshT::Point
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:115