VTK  9.3.0
vtkQuadraticTriangle.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
24 #ifndef vtkQuadraticTriangle_h
25 #define vtkQuadraticTriangle_h
26 
27 #include "vtkCommonDataModelModule.h" // For export macro
28 #include "vtkNonLinearCell.h"
29 
30 VTK_ABI_NAMESPACE_BEGIN
31 class vtkQuadraticEdge;
32 class vtkTriangle;
33 class vtkDoubleArray;
34 
35 class VTKCOMMONDATAMODEL_EXPORT vtkQuadraticTriangle : public vtkNonLinearCell
36 {
37 public:
40  void PrintSelf(ostream& os, vtkIndent indent) override;
41 
43 
47  int GetCellType() override { return VTK_QUADRATIC_TRIANGLE; }
48  int GetCellDimension() override { return 2; }
49  int GetNumberOfEdges() override { return 3; }
50  int GetNumberOfFaces() override { return 0; }
51  vtkCell* GetEdge(int edgeId) override;
52  vtkCell* GetFace(int) override { return nullptr; }
54 
55  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
56  void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
57  vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
58  vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
59  int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
60  double& dist2, double weights[]) override;
61  void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
62  int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
64  int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
65  double* GetParametricCoords() override;
66 
72  void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
73  vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
74  vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
75 
80  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
81  double pcoords[3], int& subId) override;
82 
86  int GetParametricCenter(double pcoords[3]) override;
87 
92  double GetParametricDistance(const double pcoords[3]) override;
93 
94  static void InterpolationFunctions(const double pcoords[3], double weights[6]);
95  static void InterpolationDerivs(const double pcoords[3], double derivs[12]);
97 
101  void InterpolateFunctions(const double pcoords[3], double weights[6]) override
102  {
104  }
105  void InterpolateDerivs(const double pcoords[3], double derivs[12]) override
106  {
108  }
110 
111 protected:
114 
117  vtkDoubleArray* Scalars; // used to avoid New/Delete in contouring/clipping
118 
119 private:
121  void operator=(const vtkQuadraticTriangle&) = delete;
122 };
123 //----------------------------------------------------------------------------
124 inline int vtkQuadraticTriangle::GetParametricCenter(double pcoords[3])
125 {
126  pcoords[0] = pcoords[1] = 1. / 3;
127  pcoords[2] = 0.0;
128  return 0;
129 }
130 
131 VTK_ABI_NAMESPACE_END
132 #endif
object to represent cell connectivity
Definition: vtkCellArray.h:176
represent and manipulate cell attribute data
Definition: vtkCellData.h:31
abstract class to specify cell behavior
Definition: vtkCell.h:50
virtual int GetParametricCenter(double pcoords[3])
Return center of the cell in parametric coordinates.
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:45
dynamic, self-adjusting array of double
list of point or cell ids
Definition: vtkIdList.h:23
Abstract class in support of both point location and point insertion.
a simple class to control print indentation
Definition: vtkIndent.h:29
abstract superclass for non-linear cells
represent and manipulate point attribute data
Definition: vtkPointData.h:30
represent and manipulate 3D points
Definition: vtkPoints.h:29
cell represents a parabolic, isoparametric edge
cell represents a parabolic, isoparametric triangle
void InterpolateDerivs(const double pcoords[3], double derivs[12]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
~vtkQuadraticTriangle() override
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
double GetParametricDistance(const double pcoords[3]) override
Return the distance of the parametric coordinate provided to the cell.
int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts) override
Generate simplices of proper dimension.
int EvaluatePosition(const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[]) override
Given a point x[3] return inside(=1), outside(=0) cell, or (-1) computational problem encountered; ev...
int CellBoundary(int subId, const double pcoords[3], vtkIdList *pts) override
Given parametric coordinates of a point, return the closest cell boundary, and whether the point is i...
double * GetParametricCoords() override
Return a contiguous array of parametric coordinates of the points defining this cell.
int IntersectWithLine(const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId) override
Line-edge intersection.
void Derivatives(int subId, const double pcoords[3], const double *values, int dim, double *derivs) override
Compute derivatives given cell subId and parametric coordinates.
void EvaluateLocation(int &subId, const double pcoords[3], double x[3], double *weights) override
Determine global coordinate (x[3]) from subId and parametric coordinates.
void Contour(double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *verts, vtkCellArray *lines, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd) override
Generate contouring primitives.
int GetParametricCenter(double pcoords[3]) override
Return the center of the quadratic triangle in parametric coordinates.
int GetCellType() override
Implement the vtkCell API.
int GetNumberOfEdges() override
Implement the vtkCell API.
vtkQuadraticEdge * Edge
static void InterpolationFunctions(const double pcoords[3], double weights[6])
static vtkQuadraticTriangle * New()
void Clip(double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) override
Clip this quadratic triangle using scalar value provided.
vtkCell * GetEdge(int edgeId) override
Implement the vtkCell API.
void InterpolateFunctions(const double pcoords[3], double weights[6]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
int GetNumberOfFaces() override
Implement the vtkCell API.
int GetCellDimension() override
Implement the vtkCell API.
vtkCell * GetFace(int) override
Implement the vtkCell API.
static void InterpolationDerivs(const double pcoords[3], double derivs[12])
a cell that represents a triangle
Definition: vtkTriangle.h:28
@ value
Definition: vtkX3D.h:220
@ index
Definition: vtkX3D.h:246
@ VTK_QUADRATIC_TRIANGLE
Definition: vtkCellType.h:57
int vtkIdType
Definition: vtkType.h:315