VTK  9.2.6
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 =========================================================================*/
60 #ifndef vtkBiQuadraticTriangle_h
61 #define vtkBiQuadraticTriangle_h
62 
63 #include "vtkCommonDataModelModule.h" // For export macro
64 #include "vtkNonLinearCell.h"
65 
66 class vtkQuadraticEdge;
67 class vtkTriangle;
68 class vtkDoubleArray;
69 
70 class VTKCOMMONDATAMODEL_EXPORT vtkBiQuadraticTriangle : public vtkNonLinearCell
71 {
72 public:
75  void PrintSelf(ostream& os, vtkIndent indent) override;
76 
78 
82  int GetCellType() override { return VTK_BIQUADRATIC_TRIANGLE; }
83  int GetCellDimension() override { return 2; }
84  int GetNumberOfEdges() override { return 3; }
85  int GetNumberOfFaces() override { return 0; }
86  vtkCell* GetEdge(int edgeId) override;
87  vtkCell* GetFace(int) override { return nullptr; }
89 
90  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
91  void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
92  vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
93  vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
94  int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
95  double& dist2, double weights[]) override;
96  void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
97  int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
99  int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
100  double* GetParametricCoords() override;
101 
107  void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
108  vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
109  vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
110 
115  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
116  double pcoords[3], int& subId) override;
117 
121  int GetParametricCenter(double pcoords[3]) override;
122 
127  double GetParametricDistance(const double pcoords[3]) override;
128 
129  static void InterpolationFunctions(const double pcoords[3], double weights[7]);
130  static void InterpolationDerivs(const double pcoords[3], double derivs[14]);
132 
136  void InterpolateFunctions(const double pcoords[3], double weights[7]) override
137  {
139  }
140  void InterpolateDerivs(const double pcoords[3], double derivs[14]) override
141  {
143  }
145 
146 protected:
149 
152  vtkDoubleArray* Scalars; // used to avoid New/Delete in contouring/clipping
153 
154 private:
156  void operator=(const vtkBiQuadraticTriangle&) = delete;
157 };
158 //----------------------------------------------------------------------------
159 inline int vtkBiQuadraticTriangle::GetParametricCenter(double pcoords[3])
160 {
161  pcoords[0] = pcoords[1] = 1. / 3;
162  pcoords[2] = 0.0;
163  return 0;
164 }
165 
166 #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.
vtkCell * GetFace(int) 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.
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.
vtkCell * GetEdge(int edgeId) override
Implement the vtkCell API.
int GetCellDimension() 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
double * GetParametricCoords() override
Return a contiguous array of parametric coordinates of the points defining this cell.
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:296
represent and manipulate cell attribute data
Definition: vtkCellData.h:151
abstract class to specify cell behavior
Definition: vtkCell.h:150
virtual int GetParametricCenter(double pcoords[3])
Return center of the cell in parametric coordinates.
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:165
dynamic, self-adjusting array of double
list of point or cell ids
Definition: vtkIdList.h:143
Abstract class in support of both point location and point insertion.
a simple class to control print indentation
Definition: vtkIndent.h:119
abstract superclass for non-linear cells
represent and manipulate point attribute data
Definition: vtkPointData.h:151
represent and manipulate 3D points
Definition: vtkPoints.h:149
cell represents a parabolic, isoparametric edge
a cell that represents a triangle
Definition: vtkTriangle.h:148
@ value
Definition: vtkX3D.h:226
@ index
Definition: vtkX3D.h:252
@ VTK_BIQUADRATIC_TRIANGLE
Definition: vtkCellType.h:119
int vtkIdType
Definition: vtkType.h:332