VTK  9.2.5
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 =========================================================================*/
67 #ifndef vtkPixel_h
68 #define vtkPixel_h
69 
70 #include "vtkCell.h"
71 #include "vtkCommonDataModelModule.h" // For export macro
72 
73 class vtkLine;
75 
76 class VTKCOMMONDATAMODEL_EXPORT vtkPixel : public vtkCell
77 {
78 public:
79  static vtkPixel* New();
80  vtkTypeMacro(vtkPixel, vtkCell);
81  void PrintSelf(ostream& os, vtkIndent indent) override;
82 
84 
87  int GetCellType() override { return VTK_PIXEL; }
88  int GetCellDimension() override { return 2; }
89  int GetNumberOfEdges() override { return 4; }
90  int GetNumberOfFaces() override { return 0; }
91  vtkCell* GetEdge(int edgeId) override;
92  vtkCell* GetFace(int) override { return nullptr; }
93  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
94  void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
95  vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
96  vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
97  void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
98  vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
99  vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
100  int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
101  double& dist2, double weights[]) override;
102  void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
104 
117  int Inflate(double dist) override;
118 
122  double ComputeBoundingSphere(double center[3]) const override;
123 
127  int GetParametricCenter(double pcoords[3]) override;
128 
129  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
130  double pcoords[3], int& subId) override;
131  int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
133  int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
134  double* GetParametricCoords() override;
135 
136  static void InterpolationFunctions(const double pcoords[3], double weights[4]);
137  static void InterpolationDerivs(const double pcoords[3], double derivs[8]);
139 
143  void InterpolateFunctions(const double pcoords[3], double weights[4]) override
144  {
145  vtkPixel::InterpolationFunctions(pcoords, weights);
146  }
147  void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
148  {
149  vtkPixel::InterpolationDerivs(pcoords, derivs);
150  }
152 
158  int ComputeNormal(double n[3]);
159 
160 protected:
162  ~vtkPixel() override;
163 
165 
166 private:
167  vtkPixel(const vtkPixel&) = delete;
168  void operator=(const vtkPixel&) = delete;
169 };
170 
171 //----------------------------------------------------------------------------
172 inline int vtkPixel::GetParametricCenter(double pcoords[3])
173 {
174  pcoords[0] = pcoords[1] = 0.5;
175  pcoords[2] = 0.0;
176  return 0;
177 }
178 
179 #endif
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
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
cell represents a 1D line
Definition: vtkLine.h:143
a cell that represents an orthogonal quadrilateral
Definition: vtkPixel.h:77
int GetCellType() override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:87
void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
Definition: vtkPixel.h:147
int ComputeNormal(double n[3])
vtkPixel's normal cannot be computed using vtkPolygon::ComputeNormal because its points are not sorte...
int CellBoundary(int subId, const double pcoords[3], vtkIdList *pts) override
See the vtkCell API for descriptions of these methods.
int GetNumberOfEdges() override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:89
void InterpolateFunctions(const double pcoords[3], double weights[4]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
Definition: vtkPixel.h:143
int GetNumberOfFaces() override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:90
static void InterpolationDerivs(const double pcoords[3], double derivs[8])
int IntersectWithLine(const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId) override
Intersect with a ray.
int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts) override
Generate simplices of proper dimension.
double ComputeBoundingSphere(double center[3]) const override
Computes exact bounding sphere of this pixel.
void EvaluateLocation(int &subId, const double pcoords[3], double x[3], double *weights) override
See the vtkCell API for descriptions of these methods.
int GetParametricCenter(double pcoords[3]) override
Return the center of the triangle in parametric coordinates.
Definition: vtkPixel.h:172
int GetCellDimension() override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:88
int Inflate(double dist) override
Inflates this pixel by a distance of dist by moving the edges of the pixel by that distance.
~vtkPixel() override
vtkLine * Line
Definition: vtkPixel.h:164
void Derivatives(int subId, const double pcoords[3], const double *values, int dim, double *derivs) override
Compute derivatives given cell subId and parametric coordinates.
static void InterpolationFunctions(const double pcoords[3], double weights[4])
static vtkPixel * New()
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
See the vtkCell API for descriptions of these methods.
void Clip(double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) override
See the vtkCell API for descriptions of these methods.
double * GetParametricCoords() override
Return a contiguous array of parametric coordinates of the points defining this cell.
int EvaluatePosition(const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[]) override
See the vtkCell API for descriptions of these methods.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkCell * GetFace(int) override
See the vtkCell API for descriptions of these methods.
Definition: vtkPixel.h:92
vtkCell * GetEdge(int edgeId) override
See the vtkCell API for descriptions of these methods.
represent and manipulate point attribute data
Definition: vtkPointData.h:151
represent and manipulate 3D points
Definition: vtkPoints.h:149
@ value
Definition: vtkX3D.h:226
@ center
Definition: vtkX3D.h:236
@ index
Definition: vtkX3D.h:252
@ VTK_PIXEL
Definition: vtkCellType.h:93
int vtkIdType
Definition: vtkType.h:332