VTK  9.3.20240328
vtkQuadraticTriangle.h
Go to the documentation of this file.
1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
43 #ifndef vtkQuadraticTriangle_h
44 #define vtkQuadraticTriangle_h
45 
46 #include "vtkCommonDataModelModule.h" // For export macro
47 #include "vtkNonLinearCell.h"
48 
49 VTK_ABI_NAMESPACE_BEGIN
50 class vtkQuadraticEdge;
51 class vtkTriangle;
52 class vtkDoubleArray;
53 
54 class VTKCOMMONDATAMODEL_EXPORT vtkQuadraticTriangle : public vtkNonLinearCell
55 {
56 public:
59  void PrintSelf(ostream& os, vtkIndent indent) override;
60 
62 
66  int GetCellType() override { return VTK_QUADRATIC_TRIANGLE; }
67  int GetCellDimension() override { return 2; }
68  int GetNumberOfEdges() override { return 3; }
69  int GetNumberOfFaces() override { return 0; }
70  vtkCell* GetEdge(int edgeId) override;
71  vtkCell* GetFace(int) override { return nullptr; }
73 
74  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
75  void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
76  vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
77  vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
78  int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
79  double& dist2, double weights[]) override;
80  void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
81  int TriangulateLocalIds(int index, vtkIdList* ptIds) override;
83  int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
84  double* GetParametricCoords() override;
85 
91  void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
92  vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
93  vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
94 
99  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
100  double pcoords[3], int& subId) override;
101 
105  int GetParametricCenter(double pcoords[3]) override;
106 
111  double GetParametricDistance(const double pcoords[3]) override;
112 
113  static void InterpolationFunctions(const double pcoords[3], double weights[6]);
114  static void InterpolationDerivs(const double pcoords[3], double derivs[12]);
116 
120  void InterpolateFunctions(const double pcoords[3], double weights[6]) override
121  {
123  }
124  void InterpolateDerivs(const double pcoords[3], double derivs[12]) override
125  {
127  }
129 
130 protected:
133 
136  vtkDoubleArray* Scalars; // used to avoid New/Delete in contouring/clipping
137 
138 private:
140  void operator=(const vtkQuadraticTriangle&) = delete;
141 };
142 //----------------------------------------------------------------------------
143 inline int vtkQuadraticTriangle::GetParametricCenter(double pcoords[3])
144 {
145  pcoords[0] = pcoords[1] = 1. / 3;
146  pcoords[2] = 0.0;
147  return 0;
148 }
149 
150 VTK_ABI_NAMESPACE_END
151 #endif
object to represent cell connectivity
Definition: vtkCellArray.h:285
represent and manipulate cell attribute data
Definition: vtkCellData.h:140
abstract class to specify cell behavior
Definition: vtkCell.h:130
virtual int GetParametricCenter(double pcoords[3])
Return center of the cell in parametric coordinates.
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:154
dynamic, self-adjusting array of double
list of point or cell ids
Definition: vtkIdList.h:132
Abstract class in support of both point location and point insertion.
a simple class to control print indentation
Definition: vtkIndent.h:108
abstract superclass for non-linear cells
represent and manipulate point attribute data
Definition: vtkPointData.h:139
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 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...
int TriangulateLocalIds(int index, vtkIdList *ptIds) override
Generate simplices of proper dimension.
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:137
@ value
Definition: vtkX3D.h:220
@ index
Definition: vtkX3D.h:246
@ VTK_QUADRATIC_TRIANGLE
Definition: vtkCellType.h:76
int vtkIdType
Definition: vtkType.h:315