VTK  9.1.0
vtkQuadraticTriangle.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkQuadraticTriangle.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=========================================================================*/
52#ifndef vtkQuadraticTriangle_h
53#define vtkQuadraticTriangle_h
54
55#include "vtkCommonDataModelModule.h" // For export macro
56#include "vtkNonLinearCell.h"
57
59class vtkTriangle;
60class vtkDoubleArray;
61
62class VTKCOMMONDATAMODEL_EXPORT vtkQuadraticTriangle : public vtkNonLinearCell
63{
64public:
67 void PrintSelf(ostream& os, vtkIndent indent) override;
68
70
74 int GetCellType() override { return VTK_QUADRATIC_TRIANGLE; }
75 int GetCellDimension() override { return 2; }
76 int GetNumberOfEdges() override { return 3; }
77 int GetNumberOfFaces() override { return 0; }
78 vtkCell* GetEdge(int edgeId) override;
79 vtkCell* GetFace(int) override { return nullptr; }
81
82 int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
83 void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
84 vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
85 vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
86 int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
87 double& dist2, double weights[]) override;
88 void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
89 int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
91 int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
92 double* GetParametricCoords() override;
93
99 void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
100 vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
101 vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
102
107 int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
108 double pcoords[3], int& subId) override;
109
113 int GetParametricCenter(double pcoords[3]) override;
114
119 double GetParametricDistance(const double pcoords[3]) override;
120
121 static void InterpolationFunctions(const double pcoords[3], double weights[6]);
122 static void InterpolationDerivs(const double pcoords[3], double derivs[12]);
124
128 void InterpolateFunctions(const double pcoords[3], double weights[6]) override
129 {
131 }
132 void InterpolateDerivs(const double pcoords[3], double derivs[12]) override
133 {
135 }
137
138protected:
141
144 vtkDoubleArray* Scalars; // used to avoid New/Delete in contouring/clipping
145
146private:
148 void operator=(const vtkQuadraticTriangle&) = delete;
149};
150//----------------------------------------------------------------------------
151inline int vtkQuadraticTriangle::GetParametricCenter(double pcoords[3])
152{
153 pcoords[0] = pcoords[1] = 1. / 3;
154 pcoords[2] = 0.0;
155 return 0;
156}
157
158#endif
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
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...
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.
static vtkQuadraticTriangle * New()
int GetCellType() override
Implement the vtkCell API.
int GetNumberOfEdges() override
Implement the vtkCell API.
vtkQuadraticEdge * Edge
vtkCell * GetFace(int) override
Implement the vtkCell API.
static void InterpolationFunctions(const double pcoords[3], double weights[6])
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.
double * GetParametricCoords() override
Return a contiguous array of parametric coordinates of the points defining this cell.
static void InterpolationDerivs(const double pcoords[3], double derivs[12])
a cell that represents a triangle
Definition: vtkTriangle.h:145
@ VTK_QUADRATIC_TRIANGLE
Definition: vtkCellType.h:105
int vtkIdType
Definition: vtkType.h:332