VTK  9.3.20240622
vtkPixel.h
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1// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2// SPDX-License-Identifier: BSD-3-Clause
55#ifndef vtkPixel_h
56#define vtkPixel_h
57
58#include "vtkCell.h"
59#include "vtkCommonDataModelModule.h" // For export macro
60
61VTK_ABI_NAMESPACE_BEGIN
62class vtkLine;
64
65class VTKCOMMONDATAMODEL_EXPORT vtkPixel : public vtkCell
66{
67public:
68 static vtkPixel* New();
69 vtkTypeMacro(vtkPixel, vtkCell);
70 void PrintSelf(ostream& os, vtkIndent indent) override;
71
73
76 int GetCellType() override { return VTK_PIXEL; }
77 int GetCellDimension() override { return 2; }
78 int GetNumberOfEdges() override { return 4; }
79 int GetNumberOfFaces() override { return 0; }
80 vtkCell* GetEdge(int edgeId) override;
81 vtkCell* GetFace(int) override { return nullptr; }
82 int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
83 void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
84 vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
85 vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
86 void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
87 vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
88 vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
89 int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
90 double& dist2, double weights[]) override;
91 void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
93
106 int Inflate(double dist) override;
107
111 double ComputeBoundingSphere(double center[3]) const override;
112
116 int GetParametricCenter(double pcoords[3]) override;
117
118 int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
119 double pcoords[3], int& subId) override;
120 int TriangulateLocalIds(int index, vtkIdList* ptIds) override;
122 int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
123 double* GetParametricCoords() override;
124
125 static void InterpolationFunctions(const double pcoords[3], double weights[4]);
126 static void InterpolationDerivs(const double pcoords[3], double derivs[8]);
128
132 void InterpolateFunctions(const double pcoords[3], double weights[4]) override
133 {
134 vtkPixel::InterpolationFunctions(pcoords, weights);
135 }
136 void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
137 {
138 vtkPixel::InterpolationDerivs(pcoords, derivs);
139 }
141
147 int ComputeNormal(double n[3]);
148
149protected:
151 ~vtkPixel() override;
152
154
155private:
156 vtkPixel(const vtkPixel&) = delete;
157 void operator=(const vtkPixel&) = delete;
158};
159
160//----------------------------------------------------------------------------
161inline int vtkPixel::GetParametricCenter(double pcoords[3])
162{
163 pcoords[0] = pcoords[1] = 0.5;
164 pcoords[2] = 0.0;
165 return 0;
166}
167
168VTK_ABI_NAMESPACE_END
169#endif
object to represent cell connectivity
represent and manipulate cell attribute data
abstract class to specify cell behavior
Definition vtkCell.h:130
virtual int GetParametricCenter(double pcoords[3])
Return center of the cell in parametric coordinates.
abstract superclass for arrays of numeric data
list of point or cell ids
Definition vtkIdList.h:133
Abstract class in support of both point location and point insertion.
a simple class to control print indentation
Definition vtkIndent.h:108
cell represents a 1D line
Definition vtkLine.h:132
a cell that represents an orthogonal quadrilateral
Definition vtkPixel.h:66
vtkCell * GetEdge(int edgeId) override
See the vtkCell API for descriptions of these methods.
vtkCell * GetFace(int) override
See the vtkCell API for descriptions of these methods.
Definition vtkPixel.h:81
int GetCellType() override
See the vtkCell API for descriptions of these methods.
Definition vtkPixel.h:76
void InterpolateDerivs(const double pcoords[3], double derivs[8]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
Definition vtkPixel.h:136
static vtkPixel * New()
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:78
void InterpolateFunctions(const double pcoords[3], double weights[4]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
Definition vtkPixel.h:132
double * GetParametricCoords() override
Return a contiguous array of parametric coordinates of the points defining this cell.
int GetNumberOfFaces() override
See the vtkCell API for descriptions of these methods.
Definition vtkPixel.h:79
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.
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:161
int GetCellDimension() override
See the vtkCell API for descriptions of these methods.
Definition vtkPixel.h:77
int TriangulateLocalIds(int index, vtkIdList *ptIds) override
Generate simplices of proper dimension.
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:153
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])
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.
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.
represent and manipulate point attribute data
@ VTK_PIXEL
Definition vtkCellType.h:64
int vtkIdType
Definition vtkType.h:315