dox / IO
vtkXMLPolyDataReader.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkXMLPolyDataReader.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 =========================================================================*/
00038 #ifndef __vtkXMLPolyDataReader_h
00039 #define __vtkXMLPolyDataReader_h
00040 
00041 #include "vtkXMLUnstructuredDataReader.h"
00042 
00043 class vtkPolyData;
00044 
00045 class VTK_IO_EXPORT vtkXMLPolyDataReader : public vtkXMLUnstructuredDataReader
00046 {
00047 public:
00048   vtkTypeRevisionMacro(vtkXMLPolyDataReader,vtkXMLUnstructuredDataReader);
00049   void PrintSelf(ostream& os, vtkIndent indent);  
00050   static vtkXMLPolyDataReader *New();
00051   
00053 
00054   void SetOutput(vtkPolyData *output);
00055   vtkPolyData *GetOutput();
00056   vtkPolyData *GetOutput(int idx);
00058   
00060 
00061   virtual vtkIdType GetNumberOfVerts();
00062   virtual vtkIdType GetNumberOfLines();
00063   virtual vtkIdType GetNumberOfStrips();
00064   virtual vtkIdType GetNumberOfPolys();
00066   
00067 protected:
00068   vtkXMLPolyDataReader();
00069   ~vtkXMLPolyDataReader();
00070   
00071   const char* GetDataSetName();
00072   void GetOutputUpdateExtent(int& piece, int& numberOfPieces, int& ghostLevel);
00073   void SetupOutputTotals();
00074   void SetupNextPiece();
00075   void SetupPieces(int numPieces);
00076   void DestroyPieces();
00077   
00078   void SetupOutputData();
00079   int ReadPiece(vtkXMLDataElement* ePiece);
00080   int ReadPieceData();
00081   
00082   // Read a data array whose tuples coorrespond to cells.
00083   int ReadArrayForCells(vtkXMLDataElement* da, vtkDataArray* outArray);
00084   
00085   // Get the number of cells in the given piece.  Valid after
00086   // UpdateInformation.
00087   virtual vtkIdType GetNumberOfCellsInPiece(int piece);
00088 
00089   // The size of the UpdatePiece.
00090   int TotalNumberOfVerts;
00091   int TotalNumberOfLines;
00092   int TotalNumberOfStrips;
00093   int TotalNumberOfPolys;
00094   vtkIdType StartVert;
00095   vtkIdType StartLine;
00096   vtkIdType StartStrip;
00097   vtkIdType StartPoly;
00098   
00099   // The cell elements for each piece.
00100   vtkXMLDataElement** VertElements;
00101   vtkXMLDataElement** LineElements;
00102   vtkXMLDataElement** StripElements;
00103   vtkXMLDataElement** PolyElements;
00104   vtkIdType* NumberOfVerts;
00105   vtkIdType* NumberOfLines;
00106   vtkIdType* NumberOfStrips;
00107   vtkIdType* NumberOfPolys;
00108   
00109 private:
00110   vtkXMLPolyDataReader(const vtkXMLPolyDataReader&);  // Not implemented.
00111   void operator=(const vtkXMLPolyDataReader&);  // Not implemented.
00112 };
00113 
00114 #endif