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IO/vtkXMLPUnstructuredDataReader.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkXMLPUnstructuredDataReader.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 =========================================================================*/
00039 #ifndef __vtkXMLPUnstructuredDataReader_h
00040 #define __vtkXMLPUnstructuredDataReader_h
00041 
00042 #include "vtkXMLPDataReader.h"
00043 
00044 class vtkPointSet;
00045 class vtkCellArray;
00046 class vtkXMLUnstructuredDataReader;
00047 
00048 class VTK_IO_EXPORT vtkXMLPUnstructuredDataReader : public vtkXMLPDataReader
00049 {
00050 public:
00051   vtkTypeRevisionMacro(vtkXMLPUnstructuredDataReader,vtkXMLPDataReader);
00052   void PrintSelf(ostream& os, vtkIndent indent);
00053   
00054 protected:
00055   vtkXMLPUnstructuredDataReader();
00056   ~vtkXMLPUnstructuredDataReader();
00057   
00058   vtkPointSet* GetOutputAsPointSet();
00059   vtkPointSet* GetPieceInputAsPointSet(int piece);
00060   virtual void SetupOutputTotals();
00061   virtual void SetupNextPiece();
00062   vtkIdType GetNumberOfPoints();
00063   vtkIdType GetNumberOfCells();
00064   void CopyArrayForPoints(vtkDataArray* inArray, vtkDataArray* outArray);
00065   
00066   void SetupEmptyOutput();
00067   void SetupOutputInformation();
00068   void SetupOutputData();
00069   virtual void GetOutputUpdateExtent(int& piece, int& numberOfPieces,
00070                                      int& ghostLevel)=0;
00071   
00072   // Pipeline execute data driver.  Called by vtkXMLReader.
00073   void ReadXMLData();  
00074   int ReadPrimaryElement(vtkXMLDataElement* ePrimary);
00075   void SetupUpdateExtent(int piece, int numberOfPieces, int ghostLevel);
00076   
00077   int ReadPieceData();
00078   void CopyCellArray(vtkIdType totalNumberOfCells, vtkCellArray* inCells,
00079                      vtkCellArray* outCells);
00080   
00081   // The update request.
00082   int UpdatePiece;
00083   int UpdateNumberOfPieces;
00084   int UpdateGhostLevel;
00085   
00086   // The range of pieces from the file that will form the UpdatePiece.
00087   int StartPiece;
00088   int EndPiece;
00089   vtkIdType TotalNumberOfPoints;
00090   vtkIdType TotalNumberOfCells;
00091   vtkIdType StartPoint;
00092   
00093   // The PPoints element with point information.
00094   vtkXMLDataElement* PPointsElement;
00095   
00096 private:
00097   vtkXMLPUnstructuredDataReader(const vtkXMLPUnstructuredDataReader&);  // Not implemented.
00098   void operator=(const vtkXMLPUnstructuredDataReader&);  // Not implemented.
00099 };
00100 
00101 #endif