VTK  9.3.0
vtkBiQuadraticTriangle.h
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1// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2// SPDX-FileCopyrightText: Copyright (c) EDF - www.edf.fr
3// SPDX-License-Identifier: BSD-3-Clause
29#ifndef vtkBiQuadraticTriangle_h
30#define vtkBiQuadraticTriangle_h
31
32#include "vtkCommonDataModelModule.h" // For export macro
33#include "vtkNonLinearCell.h"
34
35VTK_ABI_NAMESPACE_BEGIN
37class vtkTriangle;
38class vtkDoubleArray;
39
40class VTKCOMMONDATAMODEL_EXPORT vtkBiQuadraticTriangle : public vtkNonLinearCell
41{
42public:
45 void PrintSelf(ostream& os, vtkIndent indent) override;
46
48
52 int GetCellType() override { return VTK_BIQUADRATIC_TRIANGLE; }
53 int GetCellDimension() override { return 2; }
54 int GetNumberOfEdges() override { return 3; }
55 int GetNumberOfFaces() override { return 0; }
56 vtkCell* GetEdge(int edgeId) override;
57 vtkCell* GetFace(int) override { return nullptr; }
59
60 int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
61 void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
62 vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
63 vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
64 int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
65 double& dist2, double weights[]) override;
66 void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
67 int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
69 int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
70 double* GetParametricCoords() override;
71
77 void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
78 vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
79 vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
80
85 int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
86 double pcoords[3], int& subId) override;
87
91 int GetParametricCenter(double pcoords[3]) override;
92
97 double GetParametricDistance(const double pcoords[3]) override;
98
99 static void InterpolationFunctions(const double pcoords[3], double weights[7]);
100 static void InterpolationDerivs(const double pcoords[3], double derivs[14]);
102
106 void InterpolateFunctions(const double pcoords[3], double weights[7]) override
107 {
109 }
110 void InterpolateDerivs(const double pcoords[3], double derivs[14]) override
111 {
113 }
115
116protected:
119
122 vtkDoubleArray* Scalars; // used to avoid New/Delete in contouring/clipping
123
124private:
126 void operator=(const vtkBiQuadraticTriangle&) = delete;
127};
128//----------------------------------------------------------------------------
130{
131 pcoords[0] = pcoords[1] = 1. / 3;
132 pcoords[2] = 0.0;
133 return 0;
134}
135
136VTK_ABI_NAMESPACE_END
137#endif
cell represents a parabolic, isoparametric triangle
static void InterpolationFunctions(const double pcoords[3], double weights[7])
void EvaluateLocation(int &subId, const double pcoords[3], double x[3], double *weights) override
Determine global coordinate (x[3]) from subId and parametric coordinates.
int GetNumberOfFaces() override
Implement the vtkCell API.
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.
int GetParametricCenter(double pcoords[3]) override
Return the center of the quadratic triangle in parametric coordinates.
double * GetParametricCoords() override
Return a contiguous array of parametric coordinates of the points defining this cell.
vtkCell * GetFace(int) override
Implement the vtkCell API.
void Derivatives(int subId, const double pcoords[3], const double *values, int dim, double *derivs) override
Compute derivatives given cell subId and parametric coordinates.
int GetCellType() override
Implement the vtkCell API.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
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 Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts) override
Generate simplices of proper dimension.
double GetParametricDistance(const double pcoords[3]) override
Return the distance of the parametric coordinate provided to the cell.
int GetCellDimension() override
Implement the vtkCell API.
vtkCell * GetEdge(int edgeId) override
Implement the vtkCell API.
void InterpolateDerivs(const double pcoords[3], double derivs[14]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
~vtkBiQuadraticTriangle() override
int GetNumberOfEdges() override
Implement the vtkCell API.
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.
static void InterpolationDerivs(const double pcoords[3], double derivs[14])
void InterpolateFunctions(const double pcoords[3], double weights[7]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
static vtkBiQuadraticTriangle * New()
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 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.
object to represent cell connectivity
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
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
represent and manipulate 3D points
Definition vtkPoints.h:29
cell represents a parabolic, isoparametric edge
a cell that represents a triangle
Definition vtkTriangle.h:28
@ VTK_BIQUADRATIC_TRIANGLE
Definition vtkCellType.h:71
int vtkIdType
Definition vtkType.h:315