VTK
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00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: vtkXMLStructuredDataReader.h 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 =========================================================================*/ 00026 #ifndef __vtkXMLStructuredDataReader_h 00027 #define __vtkXMLStructuredDataReader_h 00028 00029 #include "vtkXMLDataReader.h" 00030 00031 00032 class VTK_IO_EXPORT vtkXMLStructuredDataReader : public vtkXMLDataReader 00033 { 00034 public: 00035 vtkTypeMacro(vtkXMLStructuredDataReader,vtkXMLDataReader); 00036 void PrintSelf(ostream& os, vtkIndent indent); 00037 00039 virtual vtkIdType GetNumberOfPoints(); 00040 00042 virtual vtkIdType GetNumberOfCells(); 00043 00045 00049 vtkSetMacro(WholeSlices, int); 00050 vtkGetMacro(WholeSlices, int); 00051 vtkBooleanMacro(WholeSlices, int); 00053 00056 virtual void CopyOutputInformation(vtkInformation *outInfo, int port); 00057 protected: 00058 vtkXMLStructuredDataReader(); 00059 ~vtkXMLStructuredDataReader(); 00060 00061 virtual void SetOutputExtent(int* extent)=0; 00062 int ReadPrimaryElement(vtkXMLDataElement* ePrimary); 00063 00064 // Pipeline execute data driver. Called by vtkXMLReader. 00065 void ReadXMLData(); 00066 00067 // Internal representation of pieces in the file that may have come 00068 // from a streamed write. 00069 int* PieceExtents; 00070 int* PiecePointDimensions; 00071 vtkIdType* PiecePointIncrements; 00072 int* PieceCellDimensions; 00073 vtkIdType* PieceCellIncrements; 00074 00075 // Whether to read in whole slices mode. 00076 int WholeSlices; 00077 00078 // The update extent and corresponding increments and dimensions. 00079 int UpdateExtent[6]; 00080 int PointDimensions[3]; 00081 int CellDimensions[3]; 00082 vtkIdType PointIncrements[3]; 00083 vtkIdType CellIncrements[3]; 00084 00085 int WholeExtent[6]; 00086 00087 // The extent currently being read. 00088 int SubExtent[6]; 00089 int SubPointDimensions[3]; 00090 int SubCellDimensions[3]; 00091 00092 // Override methods from superclass. 00093 void SetupEmptyOutput(); 00094 void SetupPieces(int numPieces); 00095 void DestroyPieces(); 00096 virtual int ReadArrayForPoints(vtkXMLDataElement* da, 00097 vtkAbstractArray* outArray); 00098 virtual int ReadArrayForCells(vtkXMLDataElement* da, 00099 vtkAbstractArray* outArray); 00100 00101 // Internal utility methods. 00102 int ReadPiece(vtkXMLDataElement* ePiece); 00103 virtual int ReadSubExtent( 00104 int* inExtent, int* inDimensions, vtkIdType* inIncrements, 00105 int* outExtent,int* outDimensions,vtkIdType* outIncrements, 00106 int* subExtent, int* subDimensions, vtkXMLDataElement* da, 00107 vtkAbstractArray* array); 00108 00109 private: 00110 vtkXMLStructuredDataReader(const vtkXMLStructuredDataReader&); // Not implemented. 00111 void operator=(const vtkXMLStructuredDataReader&); // Not implemented. 00112 }; 00113 00114 #endif