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IO/vtkXMLPStructuredDataReader.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkXMLPStructuredDataReader.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 =========================================================================*/
00040 #ifndef __vtkXMLPStructuredDataReader_h
00041 #define __vtkXMLPStructuredDataReader_h
00042 
00043 #include "vtkXMLPDataReader.h"
00044 
00045 class vtkExtentTranslator;
00046 class vtkTableExtentTranslator;
00047 class vtkXMLStructuredDataReader;
00048 
00049 class VTK_IO_EXPORT vtkXMLPStructuredDataReader : public vtkXMLPDataReader
00050 {
00051 public:
00052   vtkTypeRevisionMacro(vtkXMLPStructuredDataReader,vtkXMLPDataReader);
00053   void PrintSelf(ostream& os, vtkIndent indent);
00054   
00059   virtual vtkExtentTranslator* GetExtentTranslator();
00060   
00061 protected:
00062   vtkXMLPStructuredDataReader();
00063   ~vtkXMLPStructuredDataReader();
00064   
00065   vtkIdType GetNumberOfPoints();
00066   vtkIdType GetNumberOfCells();
00067   void CopyArrayForPoints(vtkDataArray* inArray, vtkDataArray* outArray);
00068   void CopyArrayForCells(vtkDataArray* inArray, vtkDataArray* outArray);
00069   
00070   virtual void SetOutputExtent(int* extent)=0;
00071   virtual void GetPieceInputExtent(int index, int* extent)=0;
00072   
00073   // Pipeline execute data driver.  Called by vtkXMLReader.
00074   void ReadXMLData();
00075   int ReadPrimaryElement(vtkXMLDataElement* ePrimary);
00076   
00077   void SetupEmptyOutput();
00078   void SetupPieces(int numPieces);
00079   void DestroyPieces();
00080   int ReadPiece(vtkXMLDataElement* ePiece);
00081   int ReadPieceData();
00082   void CopySubExtent(int* inExtent, int* inDimensions, int* inIncrements,
00083                      int* outExtent, int* outDimensions, int* outIncrements,
00084                      int* subExtent, int* subDimensions,
00085                      vtkDataArray* inArray, vtkDataArray* outArray);
00086   
00087   vtkTableExtentTranslator* ExtentTranslator;
00088   
00089   // The extent to be updated in the output.
00090   int UpdateExtent[6];
00091   int PointDimensions[3];
00092   int PointIncrements[3];
00093   int CellDimensions[3];
00094   int CellIncrements[3];
00095   
00096   // The extent currently being read from a piece.
00097   int SubExtent[6];
00098   int SubPointDimensions[3];
00099   int SubCellDimensions[3];
00100   int SubPieceExtent[6];
00101   int SubPiecePointDimensions[3];
00102   int SubPiecePointIncrements[3];
00103   int SubPieceCellDimensions[3];
00104   int SubPieceCellIncrements[3];
00105   
00106   // Information per-piece.
00107   int* PieceExtents;
00108   
00109 private:
00110   vtkXMLPStructuredDataReader(const vtkXMLPStructuredDataReader&);  // Not implemented.
00111   void operator=(const vtkXMLPStructuredDataReader&);  // Not implemented.
00112 };
00113 
00114 #endif