VTK
vtkPixel.h
Go to the documentation of this file.
1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkPixel.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 =========================================================================*/
31 #ifndef vtkPixel_h
32 #define vtkPixel_h
33 
34 #include "vtkCommonDataModelModule.h" // For export macro
35 #include "vtkCell.h"
36 
37 class vtkLine;
39 
40 class VTKCOMMONDATAMODEL_EXPORT vtkPixel : public vtkCell
41 {
42 public:
43  static vtkPixel *New();
44  vtkTypeMacro(vtkPixel,vtkCell);
45  void PrintSelf(ostream& os, vtkIndent indent) override;
46 
48 
51  int GetCellType() override {return VTK_PIXEL;};
52  int GetCellDimension() override {return 2;};
53  int GetNumberOfEdges() override {return 4;};
54  int GetNumberOfFaces() override {return 0;};
55  vtkCell *GetEdge(int edgeId) override;
56  vtkCell *GetFace(int) override {return nullptr;};
57  int CellBoundary(int subId, const double pcoords[3], vtkIdList *pts) override;
58  void Contour(double value, vtkDataArray *cellScalars,
60  vtkCellArray *lines, vtkCellArray *polys,
61  vtkPointData *inPd, vtkPointData *outPd,
62  vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd) override;
63  void Clip(double value, vtkDataArray *cellScalars,
65  vtkPointData *inPd, vtkPointData *outPd,
66  vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
67  int insideOut) override;
68  int EvaluatePosition(const double x[3], double closestPoint[3],
69  int& subId, double pcoords[3],
70  double& dist2, double weights[]) override;
71  void EvaluateLocation(int& subId, const double pcoords[3], double x[3],
72  double *weights) override;
74 
78  int GetParametricCenter(double pcoords[3]) override;
79 
80  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t,
81  double x[3], double pcoords[3], int& subId) override;
82  int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts) override;
83  void Derivatives(int subId, const double pcoords[3], const double *values,
84  int dim, double *derivs) override;
85  double *GetParametricCoords() override;
86 
90  static void InterpolationFunctions(const double pcoords[3], double weights[4]);
94  static void InterpolationDerivs(const double pcoords[3], double derivs[8]);
96 
100  void InterpolateFunctions(const double pcoords[3], double weights[4]) override
101  {
102  vtkPixel::InterpolationFunctions(pcoords,weights);
103  }
104  void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
105  {
106  vtkPixel::InterpolationDerivs(pcoords,derivs);
107  }
109 
110 protected:
111  vtkPixel();
112  ~vtkPixel() override;
113 
115 
116 private:
117  vtkPixel(const vtkPixel&) = delete;
118  void operator=(const vtkPixel&) = delete;
119 };
120 
121 //----------------------------------------------------------------------------
122 inline int vtkPixel::GetParametricCenter(double pcoords[3])
123 {
124  pcoords[0] = pcoords[1] = 0.5;
125  pcoords[2] = 0.0;
126  return 0;
127 }
128 
129 #endif
130 
131 
vtkCell * GetFace(int) override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:56
int GetNumberOfEdges() override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:53
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:37
vtkLine * Line
Definition: vtkPixel.h:114
represent and manipulate cell attribute data
Definition: vtkCellData.h:38
a cell that represents an orthogonal quadrilateral
Definition: vtkPixel.h:40
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.
int vtkIdType
Definition: vtkType.h:347
int GetCellType() override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:51
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:35
abstract class to specify cell behavior
Definition: vtkCell.h:59
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.
void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives) ...
Definition: vtkPixel.h:104
a simple class to control print indentation
Definition: vtkIndent.h:39
list of point or cell ids
Definition: vtkIdList.h:36
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:54
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.
int GetParametricCenter(double pcoords[3]) override
Return the center of the triangle in parametric coordinates.
Definition: vtkPixel.h:122
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:50
virtual vtkCell * GetEdge(int edgeId)=0
Return the edge cell from the edgeId of the cell.
static void InterpolationFunctions(const double pcoords[3], double weights[4])
static void InterpolationDerivs(const double pcoords[3], double derivs[8])
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.
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 GetCellDimension() override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:52
void InterpolateFunctions(const double pcoords[3], double weights[4]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives) ...
Definition: vtkPixel.h:100
represent and manipulate 3D points
Definition: vtkPoints.h:39
int GetNumberOfFaces() override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:54