VTK  9.1.0
vtkBiQuadraticTriangle.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkBiQuadraticTriangle.h
5
6 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7 All rights reserved.
8 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9
10 This software is distributed WITHOUT ANY WARRANTY; without even
11 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12 PURPOSE. See the above copyright notice for more information.
13
14=========================================================================*/
57#ifndef vtkBiQuadraticTriangle_h
58#define vtkBiQuadraticTriangle_h
59
60#include "vtkCommonDataModelModule.h" // For export macro
61#include "vtkNonLinearCell.h"
62
64class vtkTriangle;
65class vtkDoubleArray;
66
67class VTKCOMMONDATAMODEL_EXPORT vtkBiQuadraticTriangle : public vtkNonLinearCell
68{
69public:
72 void PrintSelf(ostream& os, vtkIndent indent) override;
73
75
79 int GetCellType() override { return VTK_BIQUADRATIC_TRIANGLE; }
80 int GetCellDimension() override { return 2; }
81 int GetNumberOfEdges() override { return 3; }
82 int GetNumberOfFaces() override { return 0; }
83 vtkCell* GetEdge(int edgeId) override;
84 vtkCell* GetFace(int) override { return nullptr; }
86
87 int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
88 void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
89 vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
90 vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
91 int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
92 double& dist2, double weights[]) override;
93 void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
94 int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
96 int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
97 double* GetParametricCoords() override;
98
104 void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
105 vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
106 vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
107
112 int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
113 double pcoords[3], int& subId) override;
114
118 int GetParametricCenter(double pcoords[3]) override;
119
124 double GetParametricDistance(const double pcoords[3]) override;
125
126 static void InterpolationFunctions(const double pcoords[3], double weights[7]);
127 static void InterpolationDerivs(const double pcoords[3], double derivs[14]);
129
133 void InterpolateFunctions(const double pcoords[3], double weights[7]) override
134 {
136 }
137 void InterpolateDerivs(const double pcoords[3], double derivs[14]) override
138 {
140 }
142
143protected:
146
149 vtkDoubleArray* Scalars; // used to avoid New/Delete in contouring/clipping
150
151private:
153 void operator=(const vtkBiQuadraticTriangle&) = delete;
154};
155//----------------------------------------------------------------------------
157{
158 pcoords[0] = pcoords[1] = 1. / 3;
159 pcoords[2] = 0.0;
160 return 0;
161}
162
163#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
Definition: vtkCellArray.h:290
represent and manipulate cell attribute data
Definition: vtkCellData.h:142
abstract class to specify cell behavior
Definition: vtkCell.h:147
virtual int GetParametricCenter(double pcoords[3])
Return center of the cell in parametric coordinates.
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:159
dynamic, self-adjusting array of double
list of point or cell ids
Definition: vtkIdList.h:140
Abstract class in support of both point location and point insertion.
a simple class to control print indentation
Definition: vtkIndent.h:113
abstract superclass for non-linear cells
represent and manipulate point attribute data
Definition: vtkPointData.h:142
represent and manipulate 3D points
Definition: vtkPoints.h:143
cell represents a parabolic, isoparametric edge
a cell that represents a triangle
Definition: vtkTriangle.h:145
@ VTK_BIQUADRATIC_TRIANGLE
Definition: vtkCellType.h:119
int vtkIdType
Definition: vtkType.h:332