VTK  9.2.6
vtkQuad.h
Go to the documentation of this file.
1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkQuad.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 =========================================================================*/
28 #ifndef vtkQuad_h
29 #define vtkQuad_h
30 
31 #include "vtkCell.h"
32 #include "vtkCommonDataModelModule.h" // For export macro
33 
34 class vtkLine;
35 class vtkTriangle;
37 
38 class VTKCOMMONDATAMODEL_EXPORT vtkQuad : public vtkCell
39 {
40 public:
41  static vtkQuad* New();
42  vtkTypeMacro(vtkQuad, vtkCell);
43  void PrintSelf(ostream& os, vtkIndent indent) override;
44 
46 
49  int GetCellType() override { return VTK_QUAD; }
50  int GetCellDimension() override { return 2; }
51  int GetNumberOfEdges() override { return 4; }
52  int GetNumberOfFaces() override { return 0; }
53  vtkCell* GetEdge(int edgeId) override;
54  vtkCell* GetFace(int) override { return nullptr; }
55  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
56  void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
57  vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
58  vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
59  int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
60  double& dist2, double weights[]) override;
61  void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
62  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
63  double pcoords[3], int& subId) override;
64  int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
65  void Derivatives(
66  int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
67  double* GetParametricCoords() override;
69 
73  int GetParametricCenter(double pcoords[3]) override;
74 
79  void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
80  vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
81  vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
82 
83  static void InterpolationFunctions(const double pcoords[3], double sf[4]);
84  static void InterpolationDerivs(const double pcoords[3], double derivs[8]);
86 
90  void InterpolateFunctions(const double pcoords[3], double sf[4]) override
91  {
93  }
94  void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
95  {
96  vtkQuad::InterpolationDerivs(pcoords, derivs);
97  }
99 
108  const vtkIdType* GetEdgeArray(vtkIdType edgeId);
109 
110 protected:
111  vtkQuad();
112  ~vtkQuad() override;
113 
116 
117 private:
118  vtkQuad(const vtkQuad&) = delete;
119  void operator=(const vtkQuad&) = delete;
120 };
121 //----------------------------------------------------------------------------
122 inline int vtkQuad::GetParametricCenter(double pcoords[3])
123 {
124  pcoords[0] = pcoords[1] = 0.5;
125  pcoords[2] = 0.0;
126  return 0;
127 }
128 
129 #endif
int GetCellType() override
See the vtkCell API for descriptions of these methods.
Definition: vtkQuad.h:49
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
represent and manipulate point attribute data
Definition: vtkPointData.h:41
represent and manipulate cell attribute data
Definition: vtkCellData.h:41
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.
a cell that represents a 2D quadrilateral
Definition: vtkQuad.h:38
int vtkIdType
Definition: vtkType.h:332
static void InterpolationDerivs(const double pcoords[3], double derivs[8])
int GetParametricCenter(double pcoords[3]) override
Return the center of the triangle in parametric coordinates.
Definition: vtkQuad.h:122
static void InterpolationFunctions(const double pcoords[3], double sf[4])
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...
cell represents a 1D line
Definition: vtkLine.h:33
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
int GetNumberOfEdges() override
See the vtkCell API for descriptions of these methods.
Definition: vtkQuad.h:51
list of point or cell ids
Definition: vtkIdList.h:33
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:55
vtkCell * GetFace(int) override
See the vtkCell API for descriptions of these methods.
Definition: vtkQuad.h:54
void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives) ...
Definition: vtkQuad.h:94
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.
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.
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.
vtkLine * Line
Definition: vtkQuad.h:114
int GetCellDimension() override
See the vtkCell API for descriptions of these methods.
Definition: vtkQuad.h:50
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.
int GetNumberOfFaces() override
See the vtkCell API for descriptions of these methods.
Definition: vtkQuad.h:52
represent and manipulate 3D points
Definition: vtkPoints.h:39
vtkTriangle * Triangle
Definition: vtkQuad.h:115
void InterpolateFunctions(const double pcoords[3], double sf[4]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives) ...
Definition: vtkQuad.h:90