VTK  9.3.0
vtkRectilinearGridToTetrahedra.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
37 #ifndef vtkRectilinearGridToTetrahedra_h
38 #define vtkRectilinearGridToTetrahedra_h
39 
40 // ways to create the mesh from voxels
41 #define VTK_VOXEL_TO_12_TET 12
42 #define VTK_VOXEL_TO_5_TET 5
43 #define VTK_VOXEL_TO_6_TET 6
44 #define VTK_VOXEL_TO_5_AND_12_TET -1
45 
46 #include "vtkFiltersGeneralModule.h" // For export macro
48 VTK_ABI_NAMESPACE_BEGIN
49 class vtkRectilinearGrid;
50 class vtkSignedCharArray;
51 class vtkIdList;
52 class vtkCellArray;
53 class vtkPoints;
54 
55 class VTKFILTERSGENERAL_EXPORT vtkRectilinearGridToTetrahedra : public vtkUnstructuredGridAlgorithm
56 {
57 public:
59  void PrintSelf(ostream& os, vtkIndent indent) override;
60 
65 
67 
71  void SetTetraPerCellTo5() { SetTetraPerCell(VTK_VOXEL_TO_5_TET); }
72  void SetTetraPerCellTo6() { SetTetraPerCell(VTK_VOXEL_TO_6_TET); }
73  void SetTetraPerCellTo12() { SetTetraPerCell(VTK_VOXEL_TO_12_TET); }
75  vtkSetMacro(TetraPerCell, int);
76  vtkGetMacro(TetraPerCell, int);
78 
80 
84  vtkSetMacro(RememberVoxelId, vtkTypeBool);
85  vtkGetMacro(RememberVoxelId, vtkTypeBool);
86  vtkBooleanMacro(RememberVoxelId, vtkTypeBool);
88 
96  void SetInput(const double Extent[3], const double Spacing[3], double tol = 0.001);
100  void SetInput(double ExtentX, double ExtentY, double ExtentZ, double SpacingX, double SpacingY,
101  double SpacingZ, double tol = 0.001);
102 
103 protected:
105  ~vtkRectilinearGridToTetrahedra() override = default;
106 
108 
111 
113 
114 private:
116 
117  void operator=(const vtkRectilinearGridToTetrahedra&) = delete;
118 
123  static void DetermineGridDivisionTypes(vtkRectilinearGrid* RectGrid,
124  vtkSignedCharArray* VoxelSubdivisionType, const int& TetraPerCell);
125 
129  static void GridToTetMesh(vtkRectilinearGrid* RectGrid, vtkSignedCharArray* VoxelSubdivisionType,
130  const int& TetraPerCell, const int& RememberVoxelId, vtkUnstructuredGrid* TetMesh,
132 
139  static int TetrahedralizeVoxel(
140  vtkIdList* VoxelCorners, const int& DivisionType, vtkPoints* NodeList, vtkCellArray* TetList);
141 
146  static void TetrahedralizeAddCenterPoint(vtkIdList* VoxelCorners, vtkPoints* NodeList);
147 };
148 
149 VTK_ABI_NAMESPACE_END
150 #endif /* vtkRectilinearGridToTetrahedra_h */
object to represent cell connectivity
Definition: vtkCellArray.h:176
list of point or cell ids
Definition: vtkIdList.h:23
a simple class to control print indentation
Definition: vtkIndent.h:29
Store zero or more vtkInformation instances.
Store vtkAlgorithm input/output information.
represent and manipulate 3D points
Definition: vtkPoints.h:29
create a Tetrahedral mesh from a RectilinearGrid
void SetTetraPerCellTo5And12()
Set the method to divide each cell (voxel) in the RectilinearGrid into tetrahedra.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void SetTetraPerCellTo6()
Set the method to divide each cell (voxel) in the RectilinearGrid into tetrahedra.
void SetInput(double ExtentX, double ExtentY, double ExtentZ, double SpacingX, double SpacingY, double SpacingZ, double tol=0.001)
This version of the function for the wrappers.
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
This is called by the superclass.
void SetInput(const double Extent[3], const double Spacing[3], double tol=0.001)
This function for convenience for creating a Rectilinear Grid If Spacing does not fit evenly into ext...
static vtkRectilinearGridToTetrahedra * New()
Form 5 Tetrahedra per cube.
void SetTetraPerCellTo5()
Set the method to divide each cell (voxel) in the RectilinearGrid into tetrahedra.
~vtkRectilinearGridToTetrahedra() override=default
void SetTetraPerCellTo12()
Set the method to divide each cell (voxel) in the RectilinearGrid into tetrahedra.
int FillInputPortInformation(int, vtkInformation *) override
Fill the input port information objects for this algorithm.
a dataset that is topologically regular with variable spacing in the three coordinate directions
dynamic, self-adjusting array of signed char
Superclass for algorithms that produce only unstructured grid as output.
dataset represents arbitrary combinations of all possible cell types
int vtkTypeBool
Definition: vtkABI.h:64
#define VTK_VOXEL_TO_12_TET
#define VTK_VOXEL_TO_5_TET
#define VTK_VOXEL_TO_6_TET
#define VTK_VOXEL_TO_5_AND_12_TET