VTK  9.2.6
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 =========================================================================*/
36 #ifndef vtkQuadraticTriangle_h
37 #define vtkQuadraticTriangle_h
38 
39 #include "vtkCommonDataModelModule.h" // For export macro
40 #include "vtkNonLinearCell.h"
41 
42 class vtkQuadraticEdge;
43 class vtkTriangle;
44 class vtkDoubleArray;
45 
46 class VTKCOMMONDATAMODEL_EXPORT vtkQuadraticTriangle : public vtkNonLinearCell
47 {
48 public:
49  static vtkQuadraticTriangle* New();
51  void PrintSelf(ostream& os, vtkIndent indent) override;
52 
54 
58  int GetCellType() override { return VTK_QUADRATIC_TRIANGLE; }
59  int GetCellDimension() override { return 2; }
60  int GetNumberOfEdges() override { return 3; }
61  int GetNumberOfFaces() override { return 0; }
62  vtkCell* GetEdge(int edgeId) override;
63  vtkCell* GetFace(int) override { return nullptr; }
65 
66  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
67  void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
68  vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
69  vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
70  int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
71  double& dist2, double weights[]) override;
72  void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
73  int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
74  void Derivatives(
75  int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
76  double* GetParametricCoords() override;
77 
83  void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
84  vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
85  vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
86 
91  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
92  double pcoords[3], int& subId) override;
93 
97  int GetParametricCenter(double pcoords[3]) override;
98 
103  double GetParametricDistance(const double pcoords[3]) override;
104 
105  static void InterpolationFunctions(const double pcoords[3], double weights[6]);
106  static void InterpolationDerivs(const double pcoords[3], double derivs[12]);
108 
112  void InterpolateFunctions(const double pcoords[3], double weights[6]) override
113  {
115  }
116  void InterpolateDerivs(const double pcoords[3], double derivs[12]) override
117  {
119  }
121 
122 protected:
124  ~vtkQuadraticTriangle() override;
125 
128  vtkDoubleArray* Scalars; // used to avoid New/Delete in contouring/clipping
129 
130 private:
132  void operator=(const vtkQuadraticTriangle&) = delete;
133 };
134 //----------------------------------------------------------------------------
135 inline int vtkQuadraticTriangle::GetParametricCenter(double pcoords[3])
136 {
137  pcoords[0] = pcoords[1] = 1. / 3;
138  pcoords[2] = 0.0;
139  return 0;
140 }
141 
142 #endif
vtkQuadraticEdge * Edge
represent and manipulate point attribute data
Definition: vtkPointData.h:41
vtkCell * GetFace(int) override
Implement the vtkCell API.
void InterpolateFunctions(const double pcoords[3], double weights[6]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives) ...
represent and manipulate cell attribute data
Definition: vtkCellData.h:41
int GetNumberOfEdges() override
Implement the vtkCell API.
Abstract class in support of both point location and point insertion.
virtual int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts)=0
Generate simplices of proper dimension.
abstract superclass for non-linear cells
int GetCellDimension() override
Implement the vtkCell API.
int vtkIdType
Definition: vtkType.h:332
static void InterpolationFunctions(const double pcoords[3], double weights[6])
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void InterpolateDerivs(const double pcoords[3], double derivs[12]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives) ...
virtual int CellBoundary(int subId, const double pcoords[3], vtkIdList *pts)=0
Given parametric coordinates of a point, return the closest cell boundary, and whether the point is i...
dynamic, self-adjusting array of double
virtual double GetParametricDistance(const double pcoords[3])
Return the distance of the parametric coordinate provided to the cell.
abstract class to specify cell behavior
Definition: vtkCell.h:60
virtual void EvaluateLocation(int &subId, const double pcoords[3], double x[3], double *weights)=0
Determine global coordinate (x[3]) from subId and parametric coordinates.
a simple class to control print indentation
Definition: vtkIndent.h:39
list of point or cell ids
Definition: vtkIdList.h:33
int GetNumberOfFaces() override
Implement the vtkCell API.
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:55
virtual void Clip(double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *connectivity, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)=0
Cut (or clip) the cell based on the input cellScalars and the specified value.
virtual int EvaluatePosition(const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[])=0
Given a point x[3] return inside(=1), outside(=0) cell, or (-1) computational problem encountered; ev...
object to represent cell connectivity
Definition: vtkCellArray.h:186
virtual vtkCell * GetEdge(int edgeId)=0
Return the edge cell from the edgeId of the cell.
cell represents a parabolic, isoparametric edge
a cell that represents a triangle
Definition: vtkTriangle.h:38
virtual void Contour(double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *verts, vtkCellArray *lines, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd)=0
Generate contouring primitives.
int GetParametricCenter(double pcoords[3]) override
Return the center of the quadratic triangle in parametric coordinates.
virtual void Derivatives(int subId, const double pcoords[3], const double *values, int dim, double *derivs)=0
Compute derivatives given cell subId and parametric coordinates.
cell represents a parabolic, isoparametric triangle
int GetCellType() override
Implement the vtkCell API.
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on...
virtual double * GetParametricCoords())
Return a contiguous array of parametric coordinates of the points defining this cell.
virtual int GetParametricCenter(double pcoords[3])
Return center of the cell in parametric coordinates.
virtual int IntersectWithLine(const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)=0
Intersect with a ray.
represent and manipulate 3D points
Definition: vtkPoints.h:39
static void InterpolationDerivs(const double pcoords[3], double derivs[12])