VTK
vtkCell.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkCell.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 =========================================================================*/
40 #ifndef vtkCell_h
41 #define vtkCell_h
42 
43 #define VTK_CELL_SIZE 512
44 #define VTK_TOL 1.e-05 // Tolerance for geometric calculation
45 
46 #include "vtkCommonDataModelModule.h" // For export macro
47 #include "vtkObject.h"
48 
49 #include "vtkIdList.h" // Needed for inline methods
50 #include "vtkCellType.h" // Needed to define cell types
51 
52 class vtkCellArray;
53 class vtkCellData;
54 class vtkDataArray;
55 class vtkPointData;
57 class vtkPoints;
58 
59 class VTKCOMMONDATAMODEL_EXPORT vtkCell : public vtkObject
60 {
61 public:
62  vtkTypeMacro(vtkCell,vtkObject);
63  void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
64 
69  void Initialize(int npts, vtkIdType *pts, vtkPoints *p);
70 
76  virtual void ShallowCopy(vtkCell *c);
77 
82  virtual void DeepCopy(vtkCell *c);
83 
87  virtual int GetCellType() = 0;
88 
92  virtual int GetCellDimension() = 0;
93 
99  virtual int IsLinear() {return 1;}
100 
105  virtual int RequiresInitialization() {return 0;}
106  virtual void Initialize() {}
107 
113  virtual int IsExplicitCell() {return 0;}
114 
120  virtual int RequiresExplicitFaceRepresentation() {return 0;}
121  virtual void SetFaces(vtkIdType *vtkNotUsed(faces)) {}
122  virtual vtkIdType *GetFaces() {return NULL;}
123 
127  vtkPoints *GetPoints() {return this->Points;}
128 
132  vtkIdType GetNumberOfPoints() {return this->PointIds->GetNumberOfIds();}
133 
137  virtual int GetNumberOfEdges() = 0;
138 
142  virtual int GetNumberOfFaces() = 0;
143 
147  vtkIdList *GetPointIds() {return this->PointIds;}
148 
152  vtkIdType GetPointId(int ptId) {return this->PointIds->GetId(ptId);}
153 
157  virtual vtkCell *GetEdge(int edgeId) = 0;
158 
162  virtual vtkCell *GetFace(int faceId) = 0;
163 
171  virtual int CellBoundary(int subId, double pcoords[3], vtkIdList *pts) = 0;
172 
190  virtual int EvaluatePosition(double x[3], double* closestPoint,
191  int& subId, double pcoords[3],
192  double& dist2, double *weights) = 0;
193 
199  virtual void EvaluateLocation(int& subId, double pcoords[3],
200  double x[3], double *weights) = 0;
201 
215  virtual void Contour(double value, vtkDataArray *cellScalars,
216  vtkIncrementalPointLocator *locator, vtkCellArray *verts,
217  vtkCellArray *lines, vtkCellArray *polys,
218  vtkPointData *inPd, vtkPointData *outPd,
219  vtkCellData *inCd, vtkIdType cellId,
220  vtkCellData *outCd) = 0;
221 
234  virtual void Clip(double value, vtkDataArray *cellScalars,
235  vtkIncrementalPointLocator *locator, vtkCellArray *connectivity,
236  vtkPointData *inPd, vtkPointData *outPd,
237  vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
238  int insideOut) = 0;
239 
248  virtual int IntersectWithLine(double p1[3], double p2[3],
249  double tol, double& t, double x[3],
250  double pcoords[3], int& subId) = 0;
251 
262  virtual int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts) = 0;
263 
278  virtual void Derivatives(int subId, double pcoords[3], double *values,
279  int dim, double *derivs) = 0;
280 
281 
286  void GetBounds(double bounds[6]);
287 
288 
293  double *GetBounds();
294 
295 
299  double GetLength2();
300 
301 
308  virtual int GetParametricCenter(double pcoords[3]);
309 
310 
318  virtual double GetParametricDistance(double pcoords[3]);
319 
320 
328  virtual int IsPrimaryCell() {return 1;}
329 
330 
340  virtual double *GetParametricCoords();
341 
347  virtual void InterpolateFunctions(double vtkNotUsed(pcoords)[3], double* vtkNotUsed(weight))
348  {
349  }
350  virtual void InterpolateDerivs(double vtkNotUsed(pcoords)[3], double* vtkNotUsed(derivs))
351  {
352  }
353 
354  // left public for quick computational access
357 
358 protected:
359  vtkCell();
360  ~vtkCell() VTK_OVERRIDE;
361 
362  double Bounds[6];
363 
364 private:
365  vtkCell(const vtkCell&) VTK_DELETE_FUNCTION;
366  void operator=(const vtkCell&) VTK_DELETE_FUNCTION;
367 };
368 
369 #endif
370 
371 
vtkIdList * PointIds
Definition: vtkCell.h:356
vtkIdType GetNumberOfPoints()
Return the number of points in the cell.
Definition: vtkCell.h:132
abstract base class for most VTK objects
Definition: vtkObject.h:59
represent and manipulate point attribute data
Definition: vtkPointData.h:37
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
virtual void InterpolateFunctions(double vtkNotUsed(pcoords)[3], double *vtkNotUsed(weight))
Compute the interpolation functions/derivatives (aka shape functions/derivatives) No-ops at this leve...
Definition: vtkCell.h:347
vtkPoints * GetPoints()
Get the point coordinates for the cell.
Definition: vtkCell.h:127
represent and manipulate cell attribute data
Definition: vtkCellData.h:38
Abstract class in support of both point location and point insertion.
void DeepCopy(vtkPistonReference *self, vtkPistonReference *other)
int vtkIdType
Definition: vtkType.h:287
vtkIdType GetPointId(int ptId)
For cell point i, return the actual point id.
Definition: vtkCell.h:152
virtual int IsLinear()
Non-linear cells require special treatment beyond the usual cell type and connectivity list informati...
Definition: vtkCell.h:99
virtual void SetFaces(vtkIdType *vtkNotUsed(faces))
Definition: vtkCell.h:121
abstract class to specify cell behavior
Definition: vtkCell.h:59
vtkPoints * Points
Definition: vtkCell.h:355
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 int RequiresInitialization()
Some cells require initialization prior to access.
Definition: vtkCell.h:105
virtual int RequiresExplicitFaceRepresentation()
Determine whether the cell requires explicit face representation, and methods for setting and getting...
Definition: vtkCell.h:120
virtual void InterpolateDerivs(double vtkNotUsed(pcoords)[3], double *vtkNotUsed(derivs))
Definition: vtkCell.h:350
object to represent cell connectivity
Definition: vtkCellArray.h:50
virtual int IsExplicitCell()
Explicit cells require additional representational information beyond the usual cell type and connect...
Definition: vtkCell.h:113
virtual int IsPrimaryCell()
Return whether this cell type has a fixed topology or whether the topology varies depending on the da...
Definition: vtkCell.h:328
int Contour(vtkDataSet *input, vtkPolyData *output, vtkDataArray *field, float isoValue, bool computeScalars)
vtkIdList * GetPointIds()
Return the list of point ids defining the cell.
Definition: vtkCell.h:147
virtual vtkIdType * GetFaces()
Definition: vtkCell.h:122
virtual void Initialize()
Definition: vtkCell.h:106
represent and manipulate 3D points
Definition: vtkPoints.h:39