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IO/vtkXMLPolyDataReader.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkXMLPolyDataReader.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 =========================================================================*/
00032 #ifndef __vtkXMLPolyDataReader_h
00033 #define __vtkXMLPolyDataReader_h
00034 
00035 #include "vtkXMLUnstructuredDataReader.h"
00036 
00037 class vtkPolyData;
00038 
00039 class VTK_IO_EXPORT vtkXMLPolyDataReader : public vtkXMLUnstructuredDataReader
00040 {
00041 public:
00042   vtkTypeRevisionMacro(vtkXMLPolyDataReader,vtkXMLUnstructuredDataReader);
00043   void PrintSelf(ostream& os, vtkIndent indent);  
00044   static vtkXMLPolyDataReader *New();
00045   
00047 
00048   void SetOutput(vtkPolyData *output);
00049   vtkPolyData *GetOutput();
00050   vtkPolyData *GetOutput(int idx);
00052   
00054 
00055   virtual vtkIdType GetNumberOfVerts();
00056   virtual vtkIdType GetNumberOfLines();
00057   virtual vtkIdType GetNumberOfStrips();
00058   virtual vtkIdType GetNumberOfPolys();
00060   
00061 protected:
00062   vtkXMLPolyDataReader();
00063   ~vtkXMLPolyDataReader();
00064   
00065   const char* GetDataSetName();
00066   void GetOutputUpdateExtent(int& piece, int& numberOfPieces, int& ghostLevel);
00067   void SetupOutputTotals();
00068   void SetupNextPiece();
00069   void SetupPieces(int numPieces);
00070   void DestroyPieces();
00071   
00072   void SetupOutputData();
00073   int ReadPiece(vtkXMLDataElement* ePiece);
00074   int ReadPieceData();
00075   
00076   // Read a data array whose tuples coorrespond to cells.
00077   int ReadArrayForCells(vtkXMLDataElement* da, vtkDataArray* outArray);
00078   
00079   // The size of the UpdatePiece.
00080   int TotalNumberOfVerts;
00081   int TotalNumberOfLines;
00082   int TotalNumberOfStrips;
00083   int TotalNumberOfPolys;
00084   vtkIdType StartVert;
00085   vtkIdType StartLine;
00086   vtkIdType StartStrip;
00087   vtkIdType StartPoly;
00088   
00089   // The cell elements for each piece.
00090   vtkXMLDataElement** VertElements;
00091   vtkXMLDataElement** LineElements;
00092   vtkXMLDataElement** StripElements;
00093   vtkXMLDataElement** PolyElements;
00094   vtkIdType* NumberOfVerts;
00095   vtkIdType* NumberOfLines;
00096   vtkIdType* NumberOfStrips;
00097   vtkIdType* NumberOfPolys;
00098   
00099 private:
00100   vtkXMLPolyDataReader(const vtkXMLPolyDataReader&);  // Not implemented.
00101   void operator=(const vtkXMLPolyDataReader&);  // Not implemented.
00102 };
00103 
00104 #endif