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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    vtkExtractPolyDataPiece.h
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00023 #ifndef vtkExtractPolyDataPiece_h
00024 #define vtkExtractPolyDataPiece_h
00025 
00026 #include "vtkFiltersParallelModule.h" // For export macro
00027 #include "vtkPolyDataAlgorithm.h"
00028 
00029 class vtkIdList;
00030 class vtkIntArray;
00031 
00032 class VTKFILTERSPARALLEL_EXPORT vtkExtractPolyDataPiece : public vtkPolyDataAlgorithm
00033 {
00034 public:
00035   static vtkExtractPolyDataPiece *New();
00036   vtkTypeMacro(vtkExtractPolyDataPiece, vtkPolyDataAlgorithm);
00037   void PrintSelf(ostream& os, vtkIndent indent);
00038 
00040 
00041   vtkSetMacro(CreateGhostCells, int);
00042   vtkGetMacro(CreateGhostCells, int);
00043   vtkBooleanMacro(CreateGhostCells, int);
00045 
00046 protected:
00047   vtkExtractPolyDataPiece();
00048   ~vtkExtractPolyDataPiece() {}
00049 
00050   // Usual data generation method
00051   int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
00052   int RequestUpdateExtent(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
00053 
00054   // A method for labeling which piece the cells belong to.
00055   void ComputeCellTags(vtkIntArray *cellTags, vtkIdList *pointOwnership,
00056                        int piece, int numPieces, vtkPolyData *input);
00057 
00058   void AddGhostLevel(vtkPolyData *input, vtkIntArray *cellTags, int ghostLevel);
00059 
00060   int CreateGhostCells;
00061 private:
00062   vtkExtractPolyDataPiece(const vtkExtractPolyDataPiece&);  // Not implemented.
00063   void operator=(const vtkExtractPolyDataPiece&);  // Not implemented.
00064 };
00065 
00066 #endif