ITK  5.2.0
Insight Toolkit
itkQuadEdgeMeshEulerOperatorsTestHelper.h
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18 #ifndef itkQuadEdgeMeshEulerOperatorsTestHelper_h
19 #define itkQuadEdgeMeshEulerOperatorsTestHelper_h
20 
21 #include "itkQuadEdgeMeshTopologyChecker.h"
22 #include "itkQuadEdgeMeshPolygonCell.h"
23 
24 using IdentifierType = unsigned long;
25 
26 template <typename TMesh>
27 bool
28 AssertTopologicalInvariants(TMesh * mesh,
29  IdentifierType NumVertices,
30  IdentifierType NumFaces,
31  IdentifierType NumEdges,
32  IdentifierType NumBorders,
33  IdentifierType Genus)
34 {
35  using CheckerType = itk::QuadEdgeMeshTopologyChecker<TMesh>;
36  typename CheckerType::Pointer check = CheckerType::New();
37  check->SetMesh(mesh);
38  check->SetExpectedNumberOfPoints(NumVertices);
39  check->SetExpectedNumberOfEdges(NumFaces);
40  check->SetExpectedNumberOfFaces(NumEdges);
41  check->SetExpectedNumberOfBoundaries(NumBorders);
42  check->SetExpectedGenus(Genus);
43  return (check->ValidateEulerCharacteristic());
44 }
45 
46 //----------------------------------------------------------------------------
47 template <typename TMesh>
48 std::vector<typename TMesh::PointType>
49 GeneratePointCoordinates(const unsigned int & iN)
50 {
51  using PointType = typename TMesh::PointType;
52  using CoordRepType = typename PointType::CoordRepType;
53  std::vector<PointType> oPt(iN * iN);
54 
55  for (unsigned int i = 0; i < iN; i++)
56  {
57  for (unsigned int j = 0; j < iN; j++)
58  {
59  oPt[i * iN + j][0] = static_cast<CoordRepType>(j);
60  oPt[i * iN + j][1] = static_cast<CoordRepType>(i);
61  oPt[i * iN + j][2] = static_cast<CoordRepType>(0.);
62  }
63  }
64 
65  return oPt;
66 }
67 
68 //----------------------------------------------------------------------------
69 template <typename TMesh>
70 void
71 CreateSquareQuadMesh(typename TMesh::Pointer mesh)
72 {
73  using MeshType = TMesh;
74  using CellType = typename MeshType::CellType;
75 
76  using QEPolygonCellType = itk::QuadEdgeMeshPolygonCell<CellType>;
77 
78  if (mesh->GetNumberOfPoints())
79  {
80  mesh->Clear();
81  mesh->ClearFreePointAndCellIndexesLists();
82  }
83 
85  int expectedNumPts = 25;
86  int expectedNumCells = 16;
87  int simpleSquareCells[64] = { 0, 1, 6, 5, 1, 2, 7, 6, 2, 3, 8, 7, 3, 4, 9, 8, 5, 6, 11, 10, 6, 7,
88  12, 11, 7, 8, 13, 12, 8, 9, 14, 13, 10, 11, 16, 15, 11, 12, 17, 16, 12, 13, 18, 17,
89  13, 14, 19, 18, 15, 16, 21, 20, 16, 17, 22, 21, 17, 18, 23, 22, 18, 19, 24, 23 };
90 
91  using PointType = typename MeshType::PointType;
92 
93  std::vector<PointType> pts = GeneratePointCoordinates<MeshType>(5);
94 
95  for (int i = 0; i < expectedNumPts; i++)
96  {
97  mesh->SetPoint(i, pts[i]);
98  }
99 
100  typename CellType::CellAutoPointer cellpointer;
101  QEPolygonCellType * poly;
102 
103  for (int i = 0; i < expectedNumCells; i++)
104  {
105  poly = new QEPolygonCellType(4);
106  cellpointer.TakeOwnership(poly);
107  cellpointer->SetPointId(0, simpleSquareCells[4 * i]);
108  cellpointer->SetPointId(1, simpleSquareCells[4 * i + 1]);
109  cellpointer->SetPointId(2, simpleSquareCells[4 * i + 2]);
110  cellpointer->SetPointId(3, simpleSquareCells[4 * i + 3]);
111  mesh->SetCell(i, cellpointer);
112  }
113 }
114 
115 //----------------------------------------------------------------------------
116 template <typename TMesh>
117 void
118 CreateSquareTriangularMesh(typename TMesh::Pointer mesh)
119 {
120  using MeshType = TMesh;
121  using CellType = typename MeshType::CellType;
122 
123  using QEPolygonCellType = itk::QuadEdgeMeshPolygonCell<CellType>;
124 
125  if (mesh->GetNumberOfPoints())
126  {
127  mesh->Clear();
128  mesh->ClearFreePointAndCellIndexesLists();
129  }
130 
132  int expectedNumPts = 25;
133  int expectedNumCells = 32;
134  int simpleSquareCells[96] = { 0, 1, 6, 0, 6, 5, 1, 2, 7, 1, 7, 6, 2, 3, 8, 2, 8, 7, 3, 4,
135  9, 3, 9, 8, 5, 6, 11, 5, 11, 10, 6, 7, 12, 6, 12, 11, 7, 8, 13, 7,
136  13, 12, 8, 9, 14, 8, 14, 13, 10, 11, 16, 10, 16, 15, 11, 12, 17, 11, 17, 16,
137  12, 13, 18, 12, 18, 17, 13, 14, 19, 13, 19, 18, 15, 16, 21, 15, 21, 20, 16, 17,
138  22, 16, 22, 21, 17, 18, 23, 17, 23, 22, 18, 19, 24, 18, 24, 23 };
139 
140  using PointType = typename TMesh::PointType;
141  std::vector<PointType> pts = GeneratePointCoordinates<TMesh>(5);
142 
143  for (int i = 0; i < expectedNumPts; i++)
144  {
145  mesh->SetPoint(i, pts[i]);
146  }
147 
148  typename CellType::CellAutoPointer cellpointer;
149  QEPolygonCellType * poly;
150 
151  for (int i = 0; i < expectedNumCells; i++)
152  {
153  poly = new QEPolygonCellType(3);
154  cellpointer.TakeOwnership(poly);
155  cellpointer->SetPointId(0, simpleSquareCells[3 * i]);
156  cellpointer->SetPointId(1, simpleSquareCells[3 * i + 1]);
157  cellpointer->SetPointId(2, simpleSquareCells[3 * i + 2]);
158  mesh->SetCell(i, cellpointer);
159  }
160 }
161 
162 //----------------------------------------------------------------------------
163 template <typename TMesh>
164 void
165 CreateTetraedronMesh(typename TMesh::Pointer mesh)
166 {
167  using MeshType = TMesh;
168  using CellType = typename MeshType::CellType;
169 
170  using QEPolygonCellType = itk::QuadEdgeMeshPolygonCell<CellType>;
171 
172  if (mesh->GetNumberOfPoints())
173  {
174  mesh->Clear();
175  mesh->ClearFreePointAndCellIndexesLists();
176  }
177 
179  int expectedNumPts = 4;
180  int expectedNumCells = 4;
181  int simpleSquareCells[12] = { 0, 1, 2, 1, 0, 3, 1, 3, 2, 2, 3, 0 };
182 
183  using PointType = typename TMesh::PointType;
184  std::vector<PointType> pts(4);
185  int i(0);
186  pts[i][0] = 0.;
187  pts[i][1] = 1.;
188  pts[i++][2] = 0.;
189  pts[i][0] = 0.;
190  pts[i][1] = -1.;
191  pts[i++][2] = 0.;
192  pts[i][0] = -1.;
193  pts[i][1] = 0.;
194  pts[i++][2] = 0.;
195  pts[i][0] = 0.;
196  pts[i][1] = 0.;
197  pts[i++][2] = 1.;
198 
199  for (i = 0; i < expectedNumPts; i++)
200  {
201  mesh->SetPoint(i, pts[i]);
202  }
203 
204  typename CellType::CellAutoPointer cellpointer;
205  QEPolygonCellType * poly;
206 
207  for (i = 0; i < expectedNumCells; i++)
208  {
209  poly = new QEPolygonCellType(3);
210  cellpointer.TakeOwnership(poly);
211  cellpointer->SetPointId(0, simpleSquareCells[3 * i]);
212  cellpointer->SetPointId(1, simpleSquareCells[3 * i + 1]);
213  cellpointer->SetPointId(2, simpleSquareCells[3 * i + 2]);
214  mesh->SetCell(i, cellpointer);
215  }
216 }
217 
218 
219 //----------------------------------------------------------------------------
220 template <typename TMesh>
221 void
222 CreateSamosa(typename TMesh::Pointer mesh)
223 {
224  using MeshType = TMesh;
225  using CellType = typename MeshType::CellType;
226 
227  using QEPolygonCellType = itk::QuadEdgeMeshPolygonCell<CellType>;
228 
229  if (mesh->GetNumberOfPoints())
230  {
231  mesh->Clear();
232  mesh->ClearFreePointAndCellIndexesLists();
233  }
234 
236  int expectedNumPts = 3;
237  int expectedNumCells = 2;
238  int simpleSquareCells[6] = { 0, 1, 2, 1, 0, 2 };
239 
240  using PointType = typename TMesh::PointType;
241  std::vector<PointType> pts(3);
242  int i(0);
243  pts[i][0] = 0.;
244  pts[i][1] = 1.;
245  pts[i++][2] = 0.;
246  pts[i][0] = 0.;
247  pts[i][1] = -1.;
248  pts[i++][2] = 0.;
249  pts[i][0] = -1.;
250  pts[i][1] = 0.;
251  pts[i++][2] = 0.;
252 
253  for (i = 0; i < expectedNumPts; i++)
254  {
255  mesh->SetPoint(i, pts[i]);
256  }
257 
258  typename CellType::CellAutoPointer cellpointer;
259  QEPolygonCellType * poly;
260 
261  for (i = 0; i < expectedNumCells; i++)
262  {
263  poly = new QEPolygonCellType(3);
264  cellpointer.TakeOwnership(poly);
265  cellpointer->SetPointId(0, simpleSquareCells[3 * i]);
266  cellpointer->SetPointId(1, simpleSquareCells[3 * i + 1]);
267  cellpointer->SetPointId(2, simpleSquareCells[3 * i + 2]);
268  mesh->SetCell(i, cellpointer);
269  }
270 }
271 
272 
273 #endif
IdentifierType
unsigned long IdentifierType
Definition: itkQuadEdgeMeshEulerOperatorsTestHelper.h:24
CreateSamosa
void CreateSamosa(typename TMesh::Pointer mesh)
Definition: itkQuadEdgeMeshEulerOperatorsTestHelper.h:222
itkQuadEdgeMeshTopologyChecker.h
itk::GTest::TypedefsAndConstructors::Dimension2::PointType
ImageBaseType::PointType PointType
Definition: itkGTestTypedefsAndConstructors.h:51
GeneratePointCoordinates
std::vector< typename TMesh::PointType > GeneratePointCoordinates(const unsigned int &iN)
Definition: itkQuadEdgeMeshEulerOperatorsTestHelper.h:49
CreateSquareTriangularMesh
void CreateSquareTriangularMesh(typename TMesh::Pointer mesh)
Definition: itkQuadEdgeMeshEulerOperatorsTestHelper.h:118
CreateTetraedronMesh
void CreateTetraedronMesh(typename TMesh::Pointer mesh)
Definition: itkQuadEdgeMeshEulerOperatorsTestHelper.h:165
itk::QuadEdgeMeshPolygonCell
Definition: itkQuadEdgeMeshPolygonCell.h:39
itkQuadEdgeMeshPolygonCell.h
itk::QuadEdgeMeshTopologyChecker
Make some basic checks in order to verify that the considered mesh is not degenerated and correctly r...
Definition: itkQuadEdgeMeshTopologyChecker.h:42
AssertTopologicalInvariants
bool AssertTopologicalInvariants(TMesh *mesh, IdentifierType NumVertices, IdentifierType NumFaces, IdentifierType NumEdges, IdentifierType NumBorders, IdentifierType Genus)
Definition: itkQuadEdgeMeshEulerOperatorsTestHelper.h:28
CreateSquareQuadMesh
void CreateSquareQuadMesh(typename TMesh::Pointer mesh)
Definition: itkQuadEdgeMeshEulerOperatorsTestHelper.h:71
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