VTK  9.3.1
vtkQuad.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
16 #ifndef vtkQuad_h
17 #define vtkQuad_h
18 
19 #include "vtkCell.h"
20 #include "vtkCommonDataModelModule.h" // For export macro
21 
22 VTK_ABI_NAMESPACE_BEGIN
23 class vtkLine;
24 class vtkTriangle;
26 
27 class VTKCOMMONDATAMODEL_EXPORT vtkQuad : public vtkCell
28 {
29 public:
30  static vtkQuad* New();
31  vtkTypeMacro(vtkQuad, vtkCell);
32  void PrintSelf(ostream& os, vtkIndent indent) override;
33 
35 
38  int GetCellType() override { return VTK_QUAD; }
39  int GetCellDimension() override { return 2; }
40  int GetNumberOfEdges() override { return 4; }
41  int GetNumberOfFaces() override { return 0; }
42  vtkCell* GetEdge(int edgeId) override;
43  vtkCell* GetFace(int) override { return nullptr; }
44  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
45  void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
46  vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
47  vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
48  int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
49  double& dist2, double weights[]) override;
50  void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
51  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
52  double pcoords[3], int& subId) override;
53  int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
54  void Derivatives(
55  int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
56  double* GetParametricCoords() override;
58 
62  int GetParametricCenter(double pcoords[3]) override;
63 
68  void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
69  vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
70  vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
71 
72  static void InterpolationFunctions(const double pcoords[3], double sf[4]);
73  static void InterpolationDerivs(const double pcoords[3], double derivs[8]);
75 
79  void InterpolateFunctions(const double pcoords[3], double sf[4]) override
80  {
82  }
83  void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
84  {
85  vtkQuad::InterpolationDerivs(pcoords, derivs);
86  }
88 
97  const vtkIdType* GetEdgeArray(vtkIdType edgeId);
98 
99 protected:
100  vtkQuad();
101  ~vtkQuad() override;
102 
105 
106 private:
107  vtkQuad(const vtkQuad&) = delete;
108  void operator=(const vtkQuad&) = delete;
109 };
110 //----------------------------------------------------------------------------
111 inline int vtkQuad::GetParametricCenter(double pcoords[3])
112 {
113  pcoords[0] = pcoords[1] = 0.5;
114  pcoords[2] = 0.0;
115  return 0;
116 }
117 
118 VTK_ABI_NAMESPACE_END
119 #endif
int GetCellType() override
See the vtkCell API for descriptions of these methods.
Definition: vtkQuad.h:38
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:29
represent and manipulate cell attribute data
Definition: vtkCellData.h:30
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:27
int vtkIdType
Definition: vtkType.h:315
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:111
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:22
abstract class to specify cell behavior
Definition: vtkCell.h:49
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:28
int GetNumberOfEdges() override
See the vtkCell API for descriptions of these methods.
Definition: vtkQuad.h:40
list of point or cell ids
Definition: vtkIdList.h:22
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:44
vtkCell * GetFace(int) override
See the vtkCell API for descriptions of these methods.
Definition: vtkQuad.h:43
void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives) ...
Definition: vtkQuad.h:83
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:175
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:27
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:103
int GetCellDimension() override
See the vtkCell API for descriptions of these methods.
Definition: vtkQuad.h:39
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:41
represent and manipulate 3D points
Definition: vtkPoints.h:28
vtkTriangle * Triangle
Definition: vtkQuad.h:104
void InterpolateFunctions(const double pcoords[3], double sf[4]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives) ...
Definition: vtkQuad.h:79