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dox/IO/vtkXMLPDataReader.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkXMLPDataReader.h,v $
00005   Language:  C++
00006 
00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
00008   All rights reserved.
00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00010 
00011      This software is distributed WITHOUT ANY WARRANTY; without even 
00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00013      PURPOSE.  See the above copyright notice for more information.
00014 
00015 =========================================================================*/
00030 #ifndef __vtkXMLPDataReader_h
00031 #define __vtkXMLPDataReader_h
00032 
00033 #include "vtkXMLReader.h"
00034 
00035 class vtkDataArray;
00036 class vtkDataSet;
00037 class vtkXMLDataReader;
00038 
00039 class VTK_IO_EXPORT vtkXMLPDataReader : public vtkXMLReader
00040 {
00041 public:
00042   vtkTypeRevisionMacro(vtkXMLPDataReader,vtkXMLReader);
00043   void PrintSelf(ostream& os, vtkIndent indent);
00044   
00046 
00047   vtkGetMacro(NumberOfPieces, int);  
00049   
00050 protected:
00051   vtkXMLPDataReader();
00052   ~vtkXMLPDataReader();
00053   
00054   // Pipeline execute information driver.  Called by vtkXMLReader.
00055   void ReadXMLInformation();
00056   int ReadPrimaryElement(vtkXMLDataElement* ePrimary);
00057   
00058   vtkDataSet* GetPieceInputAsDataSet(int piece);
00059   void SetupOutputInformation();
00060   void SetupOutputData();
00061   
00062   virtual vtkXMLDataReader* CreatePieceReader()=0;
00063   virtual vtkIdType GetNumberOfPoints()=0;
00064   virtual vtkIdType GetNumberOfCells()=0;
00065   virtual void CopyArrayForPoints(vtkDataArray* inArray,
00066                                   vtkDataArray* outArray)=0;
00067   virtual void CopyArrayForCells(vtkDataArray* inArray,
00068                                  vtkDataArray* outArray)=0;
00069   
00070   virtual void SetupPieces(int numPieces);
00071   virtual void DestroyPieces();
00072   int ReadPiece(vtkXMLDataElement* ePiece, int index);
00073   virtual int ReadPiece(vtkXMLDataElement* ePiece);
00074   int ReadPieceData(int index);
00075   virtual int ReadPieceData();
00076   int CanReadPiece(int index);
00077   
00078   char* CreatePieceFileName(const char* fileName);
00079   void SplitFileName();
00080   
00081   // Pieces from the input summary file.
00082   int NumberOfPieces;
00083   
00084   // The ghost level available on each input piece.
00085   int GhostLevel;
00086   
00087   // The piece currently being read.
00088   int Piece;
00089   
00090   // The path to the input file without the file name.
00091   char* PathName;
00092   
00093   // Information per-piece.
00094   vtkXMLDataElement** PieceElements;
00095   vtkXMLDataReader** PieceReaders;
00096   int* CanReadPieceFlag;
00097   
00098   // The PPointData and PCellData element representations.
00099   vtkXMLDataElement* PPointDataElement;
00100   vtkXMLDataElement* PCellDataElement;
00101   
00102 private:
00103   vtkXMLPDataReader(const vtkXMLPDataReader&);  // Not implemented.
00104   void operator=(const vtkXMLPDataReader&);  // Not implemented.
00105 };
00106 
00107 #endif