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/*=========================================================================
Program: Visualization Toolkit
Module: vtkExtractUnstructuredGridPiece.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkExtractUnstructuredGridPiece
* @brief Return specified piece, including specified
* number of ghost levels.
*/
#ifndef vtkExtractUnstructuredGridPiece_h
#define vtkExtractUnstructuredGridPiece_h
#include "vtkFiltersParallelModule.h" // For export macro
#include "vtkUnstructuredGridAlgorithm.h"
class vtkIdList;
class vtkIntArray;
class VTKFILTERSPARALLEL_EXPORT vtkExtractUnstructuredGridPiece : public vtkUnstructuredGridAlgorithm
{
public:
static vtkExtractUnstructuredGridPiece *New();
vtkTypeMacro(vtkExtractUnstructuredGridPiece, vtkUnstructuredGridAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
//@{
/**
* Turn on/off creating ghost cells (on by default).
*/
vtkSetMacro(CreateGhostCells, int);
vtkGetMacro(CreateGhostCells, int);
vtkBooleanMacro(CreateGhostCells, int);
//@}
protected:
vtkExtractUnstructuredGridPiece();
~vtkExtractUnstructuredGridPiece() {}
// Usual data generation method
virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
virtual int RequestUpdateExtent(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
virtual int RequestInformation(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
// A method for labeling which piece the cells belong to.
void ComputeCellTags(vtkIntArray *cellTags, vtkIdList *pointOwnership,
int piece, int numPieces, vtkUnstructuredGrid *input);
void AddGhostLevel(vtkUnstructuredGrid *input, vtkIntArray *cellTags,int ghostLevel);
int CreateGhostCells;
private:
void AddFirstGhostLevel(vtkUnstructuredGrid *input, vtkIntArray *cellTags,
int piece, int numPieces);
vtkExtractUnstructuredGridPiece(const vtkExtractUnstructuredGridPiece&) VTK_DELETE_FUNCTION;
void operator=(const vtkExtractUnstructuredGridPiece&) VTK_DELETE_FUNCTION;
};
#endif
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