VTK: dox/Parallel/vtkExtractUnstructuredGridPiece.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkExtractUnstructuredGridPiece.h,v $
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 __vtkExtractUnstructuredGridPiece_h
00024 #define __vtkExtractUnstructuredGridPiece_h
00025 
00026 #include "vtkUnstructuredGridAlgorithm.h"
00027 
00028 class vtkIdList;
00029 class vtkIntArray;
00030 
00031 class VTK_PARALLEL_EXPORT vtkExtractUnstructuredGridPiece : public vtkUnstructuredGridAlgorithm
00032 {
00033 public:
00034   static vtkExtractUnstructuredGridPiece *New();
00035   vtkTypeRevisionMacro(vtkExtractUnstructuredGridPiece, vtkUnstructuredGridAlgorithm);
00036   void PrintSelf(ostream& os, vtkIndent indent);
00037   
00039 
00040   vtkSetMacro(CreateGhostCells, int);
00041   vtkGetMacro(CreateGhostCells, int);
00042   vtkBooleanMacro(CreateGhostCells, int);
00044   
00045 protected:
00046   vtkExtractUnstructuredGridPiece();
00047   ~vtkExtractUnstructuredGridPiece() {};
00048 
00049   // Usual data generation method
00050   virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
00051   virtual int RequestInformation(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
00052   virtual 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, vtkUnstructuredGrid *input);
00057   
00058   void AddGhostLevel(vtkUnstructuredGrid *input, vtkIntArray *cellTags, int ghostLevel);
00059   
00060   int CreateGhostCells;
00061 private:
00062   vtkExtractUnstructuredGridPiece(const vtkExtractUnstructuredGridPiece&);  // Not implemented.
00063   void operator=(const vtkExtractUnstructuredGridPiece&);  // Not implemented.
00064 };
00065 
00066 #endif