Developer Documentation

unittests_trimesh_circulator_vertex_vertex.cc
1 #include <gtest/gtest.h>
2 #include <Unittests/unittests_common.hh>
3
4 #include <iostream>
5
6 namespace {
7
8 class OpenMeshTrimeshCirculatorVertexVertex : 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 /*
36 * Small VertexFaceOutgoingHalfedgeIterator Test without holes in it
37 */
38 TEST_F(OpenMeshTrimeshCirculatorVertexVertex, VertexVertexIncrement) {
39
40 mesh_.clear();
41
42 // Add some vertices
43 Mesh::VertexHandle vhandle[5];
44
45 vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
46 vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
47 vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
48 vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
49 vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
50
51 // Add two faces
52 std::vector<Mesh::VertexHandle> face_vhandles;
53
54 face_vhandles.push_back(vhandle[0]);
55 face_vhandles.push_back(vhandle[1]);
56 face_vhandles.push_back(vhandle[2]);
57 mesh_.add_face(face_vhandles);
58
59 face_vhandles.clear();
60
61 face_vhandles.push_back(vhandle[1]);
62 face_vhandles.push_back(vhandle[3]);
63 face_vhandles.push_back(vhandle[4]);
64 mesh_.add_face(face_vhandles);
65
66 face_vhandles.clear();
67
68 face_vhandles.push_back(vhandle[0]);
69 face_vhandles.push_back(vhandle[3]);
70 face_vhandles.push_back(vhandle[1]);
71 mesh_.add_face(face_vhandles);
72
73 face_vhandles.clear();
74
75 face_vhandles.push_back(vhandle[2]);
76 face_vhandles.push_back(vhandle[1]);
77 face_vhandles.push_back(vhandle[4]);
78 mesh_.add_face(face_vhandles);
79
80 /* Test setup:
81 0 ==== 2
82 |\ 0 /|
83 | \ / |
84 |2 1 3|
85 | / \ |
86 |/ 1 \|
87 3 ==== 4 */
88 // Starting vertex is 1->4
89
90
91 // Iterate around vertex 1 at the middle (with holes in between)
92 Mesh::VertexVertexIter vv_it = mesh_.vv_begin(vhandle[1]);
93 Mesh::VertexVertexIter vv_end = mesh_.vv_end(vhandle[1]);
94
95 EXPECT_EQ(4, vv_it->idx() ) << "Index wrong in VertexVertexIter begin at initialization";
96 EXPECT_EQ(4, vv_end->idx() ) << "Index wrong in VertexVertexIter end at initialization";
97 EXPECT_TRUE(vv_it.is_valid()) << "Iterator invalid in VertexVertexIter at initialization";
98
99 ++vv_it ;
100
101 EXPECT_EQ(3, vv_it->idx() ) << "Index wrong in VertexVertexIter step 1";
102 EXPECT_TRUE(vv_it.is_valid()) << "Iterator invalid in VertexVertexIter at step 1";
103
104 ++vv_it ;
105
106 EXPECT_EQ(0, vv_it->idx() ) << "Index wrong in VertexVertexIter step 2";
107 EXPECT_TRUE(vv_it.is_valid()) << "Iterator invalid in VertexVertexIter at step 2";
108
109 ++vv_it ;
110
111 EXPECT_EQ(2, vv_it->idx() ) << "Index wrong in VertexVertexIter step 3";
112 EXPECT_TRUE(vv_it.is_valid()) << "Iterator invalid in VertexVertexIter at step 3";
113
114 ++vv_it ;
115
116 EXPECT_EQ(4, vv_it->idx() ) << "Index wrong in VertexVertexIter step 4";
117 EXPECT_FALSE(vv_it.is_valid()) << "Iterator still valid in VertexVertexIter at step 4";
118 EXPECT_TRUE( vv_it == vv_end ) << "Miss matched end iterator";
119
120 }
121
122 /*
123 * Small VertexFaceOutgoingHalfedgeIterator Test at boundary vertex
124 */
125 TEST_F(OpenMeshTrimeshCirculatorVertexVertex, VertexVertexBoundaryIncrement) {
126
127 mesh_.clear();
128
129 // Add some vertices
130 Mesh::VertexHandle vhandle[5];
131
132 vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
133 vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
134 vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
135 vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
136 vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
137
138 // Add two faces
139 std::vector<Mesh::VertexHandle> face_vhandles;
140
141 face_vhandles.push_back(vhandle[0]);
142 face_vhandles.push_back(vhandle[1]);
143 face_vhandles.push_back(vhandle[2]);
144 mesh_.add_face(face_vhandles);
145
146 face_vhandles.clear();
147
148 face_vhandles.push_back(vhandle[1]);
149 face_vhandles.push_back(vhandle[3]);
150 face_vhandles.push_back(vhandle[4]);
151 mesh_.add_face(face_vhandles);
152
153 face_vhandles.clear();
154
155 face_vhandles.push_back(vhandle[0]);
156 face_vhandles.push_back(vhandle[3]);
157 face_vhandles.push_back(vhandle[1]);
158 mesh_.add_face(face_vhandles);
159
160 face_vhandles.clear();
161
162 face_vhandles.push_back(vhandle[2]);
163 face_vhandles.push_back(vhandle[1]);
164 face_vhandles.push_back(vhandle[4]);
165 mesh_.add_face(face_vhandles);
166
167 /* Test setup:
168 0 ==== 2
169 |\ 0 /|
170 | \ / |
171 |2 1 3|
172 | / \ |
173 |/ 1 \|
174 3 ==== 4 */
175 // Starting vertex is 1->4
176
177
178 // Iterate around vertex 1 at the middle (with holes in between)
179 Mesh::VertexVertexIter vv_it = mesh_.vv_begin(vhandle[2]);
180 Mesh::VertexVertexIter vv_end = mesh_.vv_end(vhandle[2]);
181
182 EXPECT_EQ(4, vv_it->idx() ) << "Index wrong in VertexVertexIter begin at initialization";
183 EXPECT_EQ(4, vv_end->idx() ) << "Index wrong in VertexVertexIter end at initialization";
184 EXPECT_TRUE(vv_it.is_valid()) << "Iterator invalid in VertexVertexIter at initialization";
185
186 ++vv_it ;
187
188 EXPECT_EQ(1, vv_it->idx() ) << "Index wrong in VertexVertexIter step 1";
189 EXPECT_TRUE(vv_it.is_valid()) << "Iterator invalid in VertexVertexIter at step 1";
190
191 ++vv_it ;
192
193 EXPECT_EQ(0, vv_it->idx() ) << "Index wrong in VertexVertexIter step 2";
194 EXPECT_TRUE(vv_it.is_valid()) << "Iterator invalid in VertexVertexIter at step 2";
195
196 ++vv_it ;
197
198 EXPECT_EQ(4, vv_it->idx() ) << "Index wrong in VertexVertexIter step 3";
199 EXPECT_FALSE(vv_it.is_valid()) << "Iterator invalid in VertexVertexIter at step 3";
200 EXPECT_TRUE( vv_it == vv_end ) << "Miss matched end iterator";
201 }
202
203
204 /*
205 * Test if the end iterator stays invalid after one lap
206 * DISABLED as long as the normal iterators using old behavior
207 */
208 //TEST_F(OpenMeshTrimeshCirculatorVertexVertex, VertexVertexIterCheckInvalidationAtEnds) {
209 //
210 // mesh_.clear();
211 //
212 // // Add some vertices
213 // Mesh::VertexHandle vhandle[5];
214 //
215 // vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
216 // vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
217 // vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
218 // vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
219 // vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
220 //
221 // // Add two faces
222 // std::vector<Mesh::VertexHandle> face_vhandles;
223 //
224 // face_vhandles.push_back(vhandle[0]);
225 // face_vhandles.push_back(vhandle[1]);
226 // face_vhandles.push_back(vhandle[2]);
227 // Mesh::FaceHandle fh0 = mesh_.add_face(face_vhandles);
228 //
229 // face_vhandles.clear();
230 //
231 // face_vhandles.push_back(vhandle[1]);
232 // face_vhandles.push_back(vhandle[3]);
233 // face_vhandles.push_back(vhandle[4]);
234 // mesh_.add_face(face_vhandles);
235 //
236 // face_vhandles.clear();
237 //
238 // face_vhandles.push_back(vhandle[0]);
239 // face_vhandles.push_back(vhandle[3]);
240 // face_vhandles.push_back(vhandle[1]);
241 // mesh_.add_face(face_vhandles);
242 //
243 // face_vhandles.clear();
244 //
245 // face_vhandles.push_back(vhandle[2]);
246 // face_vhandles.push_back(vhandle[1]);
247 // face_vhandles.push_back(vhandle[4]);
248 // mesh_.add_face(face_vhandles);
249 //
250 // /* Test setup:
251 // 0 ==== 2
252 // |\ 0 /|
253 // | \ / |
254 // |2 1 3|
255 // | / \ |
256 // |/ 1 \|
257 // 3 ==== 4 */
258 //
259 //
260 // // Check if the end iterator stays invalid after end
261 // Mesh::VertexVertexIter endIter = mesh_.vv_end(vhandle[1]);
262 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
263 // ++endIter ;
264 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid after increment";
265 //
266 // // Check if the end iterators becomes valid after decrement
267 // endIter = mesh_.vv_end(vhandle[1]);
268 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
269 // --endIter;
270 // EXPECT_TRUE(endIter.is_valid()) << "EndIter is invalid after decrement";
271 // EXPECT_EQ(2,endIter->idx()) << "EndIter points on the wrong element";
272 //
273 //
274 // // Check if the start iterator decrement is invalid
275 // Mesh::VertexVertexIter startIter = mesh_.vv_begin(vhandle[1]);
276 // EXPECT_TRUE(startIter.is_valid()) << "StartIter is not valid";
277 // --startIter;
278 // EXPECT_FALSE(startIter.is_valid()) << "StartIter decrement is not invalid";
279 //
280 // // Check if the start iterator becomes valid
281 // ++startIter;
282 // EXPECT_TRUE(startIter.is_valid()) << "StartIter is invalid after re-incrementing";
283 // EXPECT_EQ(startIter->idx(), mesh_.vv_begin(vhandle[1])->idx()) << "StartIter points on the wrong element";
284 //
285 //}
286
287 /*
288 * Test CW and CCW iterators
289 */
290 TEST_F(OpenMeshTrimeshCirculatorVertexVertex, CWAndCCWCheck) {
291
292 mesh_.clear();
293
294 // Add some vertices
295 Mesh::VertexHandle vhandle[5];
296
297 vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
298 vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
299 vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
300 vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
301 vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
302
303 // Add two faces
304 std::vector<Mesh::VertexHandle> face_vhandles;
305
306 face_vhandles.push_back(vhandle[0]);
307 face_vhandles.push_back(vhandle[1]);
308 face_vhandles.push_back(vhandle[2]);
309 mesh_.add_face(face_vhandles);
310
311 face_vhandles.clear();
312
313 face_vhandles.push_back(vhandle[1]);
314 face_vhandles.push_back(vhandle[3]);
315 face_vhandles.push_back(vhandle[4]);
316 mesh_.add_face(face_vhandles);
317
318 face_vhandles.clear();
319
320 face_vhandles.push_back(vhandle[0]);
321 face_vhandles.push_back(vhandle[3]);
322 face_vhandles.push_back(vhandle[1]);
323 mesh_.add_face(face_vhandles);
324
325 face_vhandles.clear();
326
327 face_vhandles.push_back(vhandle[2]);
328 face_vhandles.push_back(vhandle[1]);
329 face_vhandles.push_back(vhandle[4]);
330 mesh_.add_face(face_vhandles);
331
332 /* Test setup:
333 0 ==== 2
334 |\ 0 /|
335 | \ / |
336 |2 1 3|
337 | / \ |
338 |/ 1 \|
339 3 ==== 4 */
340
341
342 int indices[5] = {4, 2, 0, 3, 4};
343 int rev_indices[5];
344 std::reverse_copy(indices,indices+5,rev_indices);
345
346 Mesh::VertexHandle vh = vhandle[1];
347
348 //CCW
349 Mesh::VertexVertexCCWIter vv_ccwit = mesh_.vv_ccwbegin(vh);
350 Mesh::VertexVertexCCWIter vv_ccwend = mesh_.vv_ccwend(vh);
351 size_t i = 0;
352 for (;vv_ccwit != vv_ccwend; ++vv_ccwit, ++i)
353 {
354 EXPECT_EQ(indices[i], vv_ccwit->idx()) << "Index wrong in VertexVertexCCWIter";
355 }
356
357 EXPECT_FALSE(vv_ccwit.is_valid()) << "Iterator invalid in VertexVertexCCWIter at end";
358 EXPECT_TRUE( vv_ccwit == vv_ccwend ) << "End iterator for VertexVertexCCWIter not matching";
359
360 //constant CCW
361 Mesh::ConstVertexVertexCCWIter cvv_ccwit = mesh_.cvv_ccwbegin(vh);
362 Mesh::ConstVertexVertexCCWIter cvv_ccwend = mesh_.cvv_ccwend(vh);
363 i = 0;
364 for (;cvv_ccwit != cvv_ccwend; ++cvv_ccwit, ++i)
365 {
366 EXPECT_EQ(indices[i], cvv_ccwit->idx()) << "Index wrong in ConstVertexVertexCCWIter";
367 }
368
369 EXPECT_FALSE(cvv_ccwit.is_valid()) << "Iterator invalid in ConstVertexVertexCCWIter at end";
370 EXPECT_TRUE( cvv_ccwit == cvv_ccwend ) << "End iterator for ConstVertexVertexCCWIter not matching";
371
372 //CW
373 Mesh::VertexVertexCWIter vv_cwit = mesh_.vv_cwbegin(vh);
374 Mesh::VertexVertexCWIter vv_cwend = mesh_.vv_cwend(vh);
375 i = 0;
376 for (;vv_cwit != vv_cwend; ++vv_cwit, ++i)
377 {
378 EXPECT_EQ(rev_indices[i], vv_cwit->idx()) << "Index wrong in VertexVertexCWIter";
379 }
380 EXPECT_FALSE(vv_cwit.is_valid()) << "Iterator invalid in VertexVertexCWIter at end";
381 EXPECT_TRUE( vv_cwit == vv_cwend ) << "End iterator for VertexVertexCWIter not matching";
382
383 //constant CW
384 Mesh::ConstVertexVertexCWIter cvv_cwit = mesh_.cvv_cwbegin(vh);
385 Mesh::ConstVertexVertexCWIter cvv_cwend = mesh_.cvv_cwend(vh);
386 i = 0;
387 for (;cvv_cwit != cvv_cwend; ++cvv_cwit, ++i)
388 {
389 EXPECT_EQ(rev_indices[i], cvv_cwit->idx()) << "Index wrong in ConstVertexVertexCWIter";
390 }
391 EXPECT_FALSE(cvv_cwit.is_valid()) << "Iterator invalid in ConstVertexVertexCWIter at end";
392 EXPECT_TRUE( cvv_cwit == cvv_cwend ) << "End iterator for ConstVertexVertexCWIter not matching";
393
394 /*
395 * conversion properties:
396 * a) cw_begin == CWIter(ccw_begin())
397 * b) cw_iter->idx() == CCWIter(cw_iter)->idx() for valid iterators
398 * c) --cw_iter == CWIter(++ccwIter) for valid iterators
399 * d) cw_end == CWIter(ccw_end()) => --cw_end != CWIter(++ccw_end()) *
400 */
401 Mesh::VertexVertexCWIter vv_cwIter = mesh_.vv_cwbegin(vh);
402 // a)
403 EXPECT_TRUE( vv_cwIter == Mesh::VertexVertexCWIter(mesh_.vv_ccwbegin(vh)) ) << "ccw to cw convvrsion failed";
404 EXPECT_TRUE( Mesh::VertexVertexCCWIter(vv_cwIter) == mesh_.vv_ccwbegin(vh) ) << "cw to ccw convvrsion failed";
405 // b)
406 EXPECT_EQ( vv_cwIter->idx(), Mesh::VertexVertexCCWIter(vv_cwIter)->idx()) << "iterators doesnt point on the same element";
407 // c)
408 ++vv_cwIter;
409 vv_ccwend = mesh_.vv_ccwend(vh);
410 --vv_ccwend;
411 EXPECT_EQ(vv_cwIter->idx(),vv_ccwend->idx()) << "iteratoes are not equal after inc/dec";
412 // additional conversion check
413 vv_ccwend = Mesh::VertexVertexCCWIter(vv_cwIter);
414 EXPECT_EQ(vv_cwIter->idx(),vv_ccwend->idx())<< "iterators doesnt point on the same element";
415 // d)
416 vv_cwIter = Mesh::VertexVertexCWIter(mesh_.vv_ccwend(vh));
417 EXPECT_FALSE(vv_cwIter.is_valid()) << "end iterator is not invalid";
418 EXPECT_TRUE(Mesh::VertexVertexCCWIter(mesh_.vv_cwend(vh)) == mesh_.vv_ccwend(vh)) << "end iterators are not equal";
419
420
421 }
422
423
424
425 }
OpenMesh::PolyMeshT::Point
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:112
OpenMesh::PolyMeshT::add_vertex
VertexHandle add_vertex(const Point &_p)
Alias for new_vertex(const Point&).
Definition: PolyMeshT.hh:235
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:136
OpenMesh::PolyMeshT::VertexVertexIter
Kernel::VertexVertexIter VertexVertexIter
Circulator.
Definition: PolyMeshT.hh:162
OpenMeshBase
Definition: unittests_common.hh:26