Developer Documentation

unittests_trimesh_circulator_vertex_edge.cc
1 #include <gtest/gtest.h>
2 #include <Unittests/unittests_common.hh>
3
4 #include <iostream>
5
6 namespace {
7
8 class OpenMeshTrimeshCirculatorVertexEdge : 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 VertexEdgeIterator Test without holes in it
37 */
38 TEST_F(OpenMeshTrimeshCirculatorVertexEdge, VertexEdgeIterWithoutHolesIncrement) {
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
89 // Iterate around vertex 1 at the middle (with holes in between)
90 Mesh::VertexEdgeIter ve_it = mesh_.ve_begin(vhandle[1]);
91 Mesh::VertexEdgeIter ve_end = mesh_.ve_end(vhandle[1]);
92 EXPECT_EQ(5, ve_it->idx() ) << "Index wrong in VertexEdgeIter at initialization";
93 EXPECT_TRUE(ve_it.is_valid()) << "Iterator invalid in VertexEdgeIter at initialization";
94 ++ve_it ;
95 EXPECT_EQ(3, ve_it->idx() ) << "Index wrong in VertexEdgeIter at step 1";
96 EXPECT_TRUE(ve_it.is_valid()) << "Iterator invalid in VertexEdgeIter at step 1";
97 ++ve_it ;
98 EXPECT_EQ(0, ve_it->idx() ) << "Index wrong in VertexEdgeIter at step 2";
99 EXPECT_TRUE(ve_it.is_valid()) << "Iterator invalid in VertexEdgeIter at step 2";
100 ++ve_it ;
101 EXPECT_EQ(1, ve_it->idx() ) << "Index wrong in VertexEdgeIter at step 3";
102 EXPECT_TRUE(ve_it.is_valid()) << "Iterator invalid in VertexEdgeIter at step 3";
103 ++ve_it ;
104 EXPECT_EQ(5, ve_it->idx() ) << "Index wrong in VertexEdgeIter at end";
105 EXPECT_FALSE(ve_it.is_valid()) << "Iterator not invalid in VertexEdgeIter at end";
106 EXPECT_TRUE( ve_it == ve_end ) << "End iterator for VertexEdgeIter not matching";
107
108 // Iterate around vertex 1 at the middle (with holes in between) with const iterator
109 Mesh::ConstVertexEdgeIter cve_it = mesh_.cve_begin(vhandle[1]);
110 Mesh::ConstVertexEdgeIter cve_end = mesh_.cve_end(vhandle[1]);
111 EXPECT_EQ(5, cve_it->idx() ) << "Index wrong in ConstVertexEdgeIter at initialization";
112 EXPECT_TRUE(cve_it.is_valid()) << "Iterator invalid in ConstVertexEdgeIter at initialization";
113 ++cve_it ;
114 EXPECT_EQ(3, cve_it->idx() ) << "Index wrong in ConstVertexEdgeIter at step 1";
115 EXPECT_TRUE(cve_it.is_valid()) << "Iterator invalid in ConstVertexEdgeIter at step 1";
116 ++cve_it ;
117 EXPECT_EQ(0, cve_it->idx() ) << "Index wrong in ConstVertexEdgeIter at step 2";
118 EXPECT_TRUE(cve_it.is_valid()) << "Iterator invalid in ConstVertexEdgeIter at step 2";
119 ++cve_it ;
120 EXPECT_EQ(1, cve_it->idx() ) << "Index wrong in ConstVertexEdgeIter at step 3";
121 EXPECT_TRUE(cve_it.is_valid()) << "Iterator invalid in ConstVertexEdgeIter at step 3";
122 ++cve_it ;
123 EXPECT_EQ(5, cve_it->idx() ) << "Index wrong in ConstVertexEdgeIter at end";
124 EXPECT_FALSE(cve_it.is_valid()) << "Iterator not invalid in VertexEdgeIter at end";
125 EXPECT_TRUE( cve_it == cve_end ) << "End iterator for ConstVertexEdgeIter not matching";
126 }
127
128 /*
129 * Small VertexEdgeIterator Test without holes in it
130 */
131 TEST_F(OpenMeshTrimeshCirculatorVertexEdge, VertexEdgeIterBoundaryIncrement) {
132
133 mesh_.clear();
134
135 // Add some vertices
136 Mesh::VertexHandle vhandle[5];
137
138 vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
139 vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
140 vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
141 vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
142 vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
143
144 // Add two faces
145 std::vector<Mesh::VertexHandle> face_vhandles;
146
147 face_vhandles.push_back(vhandle[0]);
148 face_vhandles.push_back(vhandle[1]);
149 face_vhandles.push_back(vhandle[2]);
150 mesh_.add_face(face_vhandles);
151
152 face_vhandles.clear();
153
154 face_vhandles.push_back(vhandle[1]);
155 face_vhandles.push_back(vhandle[3]);
156 face_vhandles.push_back(vhandle[4]);
157 mesh_.add_face(face_vhandles);
158
159 face_vhandles.clear();
160
161 face_vhandles.push_back(vhandle[0]);
162 face_vhandles.push_back(vhandle[3]);
163 face_vhandles.push_back(vhandle[1]);
164 mesh_.add_face(face_vhandles);
165
166 face_vhandles.clear();
167
168 face_vhandles.push_back(vhandle[2]);
169 face_vhandles.push_back(vhandle[1]);
170 face_vhandles.push_back(vhandle[4]);
171 mesh_.add_face(face_vhandles);
172
173 /* Test setup:
174 0 ==== 2
175 |\ 0 /|
176 | \ / |
177 |2 1 3|
178 | / \ |
179 |/ 1 \|
180 3 ==== 4 */
181
182 // Iterate around vertex 1 at the middle (with holes in between)
183 Mesh::VertexEdgeIter ve_it = mesh_.ve_begin(vhandle[2]);
184 Mesh::VertexEdgeIter ve_end = mesh_.ve_end(vhandle[2]);
185 EXPECT_EQ(7, ve_it->idx() ) << "Index wrong in VertexEdgeIter at initialization";
186 EXPECT_TRUE(ve_it.is_valid()) << "Iterator invalid in VertexEdgeIter at initialization";
187 ++ve_it ;
188 EXPECT_EQ(1, ve_it->idx() ) << "Index wrong in VertexEdgeIter at step 1";
189 EXPECT_TRUE(ve_it.is_valid()) << "Iterator invalid in VertexEdgeIter at step 1";
190 ++ve_it ;
191 EXPECT_EQ(2, ve_it->idx() ) << "Index wrong in VertexEdgeIter at step 2";
192 EXPECT_TRUE(ve_it.is_valid()) << "Iterator invalid in VertexEdgeIter at step 2";
193 ++ve_it ;
194 EXPECT_EQ(7, ve_it->idx() ) << "Index wrong in VertexEdgeIter at step 3";
195 EXPECT_FALSE(ve_it.is_valid()) << "Iterator not invalid in VertexEdgeIter at end";
196 EXPECT_TRUE( ve_it == ve_end ) << "End iterator for VertexEdgeIter not matching";
197
198 }
199
200
201 /*
202 * Test if the end iterator stays invalid after one lap
203 * DISABLED as long as the normal iterators using old behavior
204 */
205 //TEST_F(OpenMeshTrimeshCirculatorVertexEdge, VertexEdgeIterCheckInvalidationAtEnds) {
206 //
207 // mesh_.clear();
208 //
209 // // Add some vertices
210 // Mesh::VertexHandle vhandle[5];
211 //
212 // vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
213 // vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
214 // vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
215 // vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
216 // vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
217 //
218 // // Add two faces
219 // std::vector<Mesh::VertexHandle> face_vhandles;
220 //
221 // face_vhandles.push_back(vhandle[0]);
222 // face_vhandles.push_back(vhandle[1]);
223 // face_vhandles.push_back(vhandle[2]);
224 // Mesh::FaceHandle fh0 = mesh_.add_face(face_vhandles);
225 //
226 // face_vhandles.clear();
227 //
228 // face_vhandles.push_back(vhandle[1]);
229 // face_vhandles.push_back(vhandle[3]);
230 // face_vhandles.push_back(vhandle[4]);
231 // mesh_.add_face(face_vhandles);
232 //
233 // face_vhandles.clear();
234 //
235 // face_vhandles.push_back(vhandle[0]);
236 // face_vhandles.push_back(vhandle[3]);
237 // face_vhandles.push_back(vhandle[1]);
238 // mesh_.add_face(face_vhandles);
239 //
240 // face_vhandles.clear();
241 //
242 // face_vhandles.push_back(vhandle[2]);
243 // face_vhandles.push_back(vhandle[1]);
244 // face_vhandles.push_back(vhandle[4]);
245 // mesh_.add_face(face_vhandles);
246 //
247 // /* Test setup:
248 // 0 ==== 2
249 // |\ 0 /|
250 // | \ / |
251 // |2 1 3|
252 // | / \ |
253 // |/ 1 \|
254 // 3 ==== 4 */
255 //
256 //
257 // // Check if the end iterator stays invalid after end
258 // Mesh::VertexEdgeIter endIter = mesh_.ve_end(vhandle[1]);
259 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
260 // ++endIter ;
261 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid after increment";
262 //
263 // // Check if the end iterators becomes valid after decrement
264 // endIter = mesh_.ve_end(vhandle[1]);
265 // EXPECT_FALSE(endIter.is_valid()) << "EndIter is not invalid";
266 // --endIter;
267 // EXPECT_TRUE(endIter.is_valid()) << "EndIter is invalid after decrement";
268 // EXPECT_EQ(1,endIter->idx()) << "EndIter points on the wrong element";
269 //
270 //
271 // // Check if the start iterator decrement is invalid
272 // Mesh::VertexEdgeIter startIter = mesh_.ve_begin(vhandle[1]);
273 // EXPECT_TRUE(startIter.is_valid()) << "StartIter is not valid";
274 // --startIter;
275 // EXPECT_FALSE(startIter.is_valid()) << "StartIter decrement is not invalid";
276 //
277 // // Check if the start iterator becomes valid
278 // ++startIter;
279 // EXPECT_TRUE(startIter.is_valid()) << "StarIter is invalid after re-incrementing";
280 // EXPECT_EQ(startIter->idx(), mesh_.ve_begin(vhandle[1])->idx()) << "StartIter points on the wrong element";
281 //
282 //}
283
284 /*
285 * Test CW and CCW iterators
286 */
287 TEST_F(OpenMeshTrimeshCirculatorVertexEdge, CWAndCCWCheck) {
288
289 mesh_.clear();
290
291 // Add some vertices
292 Mesh::VertexHandle vhandle[5];
293
294 vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
295 vhandle[1] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
296 vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
297 vhandle[3] = mesh_.add_vertex(Mesh::Point(0,-1, 0));
298 vhandle[4] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
299
300 // Add two faces
301 std::vector<Mesh::VertexHandle> face_vhandles;
302
303 face_vhandles.push_back(vhandle[0]);
304 face_vhandles.push_back(vhandle[1]);
305 face_vhandles.push_back(vhandle[2]);
306 mesh_.add_face(face_vhandles);
307
308 face_vhandles.clear();
309
310 face_vhandles.push_back(vhandle[1]);
311 face_vhandles.push_back(vhandle[3]);
312 face_vhandles.push_back(vhandle[4]);
313 mesh_.add_face(face_vhandles);
314
315 face_vhandles.clear();
316
317 face_vhandles.push_back(vhandle[0]);
318 face_vhandles.push_back(vhandle[3]);
319 face_vhandles.push_back(vhandle[1]);
320 mesh_.add_face(face_vhandles);
321
322 face_vhandles.clear();
323
324 face_vhandles.push_back(vhandle[2]);
325 face_vhandles.push_back(vhandle[1]);
326 face_vhandles.push_back(vhandle[4]);
327 mesh_.add_face(face_vhandles);
328
329 /* Test setup:
330 0 ==== 2
331 |\ 0 /|
332 | \ / |
333 |2 1 3|
334 | / \ |
335 |/ 1 \|
336 3 ==== 4 */
337
338
339 int indices[5] = {5, 1, 0, 3, 5};
340 int rev_indices[5];
341 std::reverse_copy(indices,indices+5,rev_indices);
342
343 Mesh::VertexHandle vh = vhandle[1];
344
345 //CCW
346 Mesh::VertexEdgeCCWIter ve_ccwit = mesh_.ve_ccwbegin(vh);
347 Mesh::VertexEdgeCCWIter ve_ccwend = mesh_.ve_ccwend(vh);
348 size_t i = 0;
349 for (;ve_ccwit != ve_ccwend; ++ve_ccwit, ++i)
350 {
351 EXPECT_EQ(indices[i], ve_ccwit->idx()) << "Index wrong in VertexEdgeCCWIter";
352 }
353
354 EXPECT_FALSE(ve_ccwit.is_valid()) << "Iterator invalid in VertexEdgeCCWIter at end";
355 EXPECT_TRUE( ve_ccwit == ve_ccwend ) << "End iterator for VertexEdgeCCWIter not matching";
356
357 //constant CCW
358 Mesh::ConstVertexEdgeCCWIter cve_ccwit = mesh_.cve_ccwbegin(vh);
359 Mesh::ConstVertexEdgeCCWIter cve_ccwend = mesh_.cve_ccwend(vh);
360 i = 0;
361 for (;cve_ccwit != cve_ccwend; ++cve_ccwit, ++i)
362 {
363 EXPECT_EQ(indices[i], cve_ccwit->idx()) << "Index wrong in ConstVertexEdgeCCWIter";
364 }
365
366 EXPECT_FALSE(cve_ccwit.is_valid()) << "Iterator invalid in ConstVertexEdgeCCWIter at end";
367 EXPECT_TRUE( cve_ccwit == cve_ccwend ) << "End iterator for ConstVertexEdgeCCWIter not matching";
368
369 //CW
370 Mesh::VertexEdgeCWIter ve_cwit = mesh_.ve_cwbegin(vh);
371 Mesh::VertexEdgeCWIter ve_cwend = mesh_.ve_cwend(vh);
372 i = 0;
373 for (;ve_cwit != ve_cwend; ++ve_cwit, ++i)
374 {
375 EXPECT_EQ(rev_indices[i], ve_cwit->idx()) << "Index wrong in VertexEdgeCWIter";
376 }
377 EXPECT_FALSE(ve_cwit.is_valid()) << "Iterator invalid in VertexEdgeCWIter at end";
378 EXPECT_TRUE( ve_cwit == ve_cwend ) << "End iterator for VertexEdgeCWIter not matching";
379
380 //constant CW
381 Mesh::ConstVertexEdgeCWIter cve_cwit = mesh_.cve_cwbegin(vh);
382 Mesh::ConstVertexEdgeCWIter cve_cwend = mesh_.cve_cwend(vh);
383 i = 0;
384 for (;cve_cwit != cve_cwend; ++cve_cwit, ++i)
385 {
386 EXPECT_EQ(rev_indices[i], cve_cwit->idx()) << "Index wrong in ConstVertexEdgeCWIter";
387 }
388 EXPECT_FALSE(cve_cwit.is_valid()) << "Iterator invalid in ConstVertexEdgeCWIter at end";
389 EXPECT_TRUE( cve_cwit == cve_cwend ) << "End iterator for ConstVertexEdgeCWIter not matching";
390
391 /*
392 * conversion properties:
393 * a) cw_begin == CWIter(ccw_begin())
394 * b) cw_iter->idx() == CCWIter(cw_iter)->idx() for valid iterators
395 * c) --cw_iter == CWIter(++ccwIter) for valid iterators
396 * d) cw_end == CWIter(ccw_end()) => --cw_end != CWIter(++ccw_end()) *
397 */
398 Mesh::VertexEdgeCWIter ve_cwIter = mesh_.ve_cwbegin(vh);
399 // a)
400 EXPECT_TRUE( ve_cwIter == Mesh::VertexEdgeCWIter(mesh_.ve_ccwbegin(vh)) ) << "ccw to cw conversion failed";
401 EXPECT_TRUE( Mesh::VertexEdgeCCWIter(ve_cwIter) == mesh_.ve_ccwbegin(vh) ) << "cw to ccw conversion failed";
402 // b)
403 EXPECT_EQ( ve_cwIter->idx(), Mesh::VertexEdgeCCWIter(ve_cwIter)->idx()) << "iterators doesnt point on the same element";
404 // c)
405 ++ve_cwIter;
406 ve_ccwend = mesh_.ve_ccwend(vh);
407 --ve_ccwend;
408 EXPECT_EQ(ve_cwIter->idx(),ve_ccwend->idx()) << "iteratoes are not equal after inc/dec";
409 // additional conversion check
410 ve_ccwend = Mesh::VertexEdgeCCWIter(ve_cwIter);
411 EXPECT_EQ(ve_cwIter->idx(),ve_ccwend->idx())<< "iterators doesnt point on the same element";
412 // d)
413 ve_cwIter = Mesh::VertexEdgeCWIter(mesh_.ve_ccwend(vh));
414 EXPECT_FALSE(ve_cwIter.is_valid()) << "end iterator is not invalid";
415 EXPECT_TRUE(Mesh::VertexEdgeCCWIter(mesh_.ve_cwend(vh)) == mesh_.ve_ccwend(vh)) << "end iterators are not equal";
416
417
418 }
419
420 }
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::VertexEdgeIter
Kernel::VertexEdgeIter VertexEdgeIter
Circulator.
Definition: PolyMeshT.hh:165
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:136
OpenMeshBase
Definition: unittests_common.hh:26
OpenMesh::PolyMeshT::ConstVertexEdgeIter
Kernel::ConstVertexEdgeIter ConstVertexEdgeIter
Circulator.
Definition: PolyMeshT.hh:175