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145 lines
3.7 KiB
C++
145 lines
3.7 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkXMLPDataReader.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkXMLPDataReader
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* @brief Superclass for PVTK XML file readers that read vtkDataSets.
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*
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* vtkXMLPDataReader provides functionality common to all PVTK XML
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* file readers that read vtkDataSets. Concrete subclasses call upon
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* this functionality when needed.
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*
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* @sa
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* vtkXMLDataReader
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*/
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#ifndef vtkXMLPDataReader_h
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#define vtkXMLPDataReader_h
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#include "vtkIOXMLModule.h" // For export macro
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#include "vtkXMLPDataObjectReader.h"
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class vtkDataArray;
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class vtkDataSet;
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class vtkXMLDataReader;
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class VTKIOXML_EXPORT vtkXMLPDataReader : public vtkXMLPDataObjectReader
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{
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public:
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vtkTypeMacro(vtkXMLPDataReader, vtkXMLPDataObjectReader);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* For the specified port, copy the information this reader sets up in
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* SetupOutputInformation to outInfo
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*/
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void CopyOutputInformation(vtkInformation* outInfo, int port) override;
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protected:
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vtkXMLPDataReader();
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~vtkXMLPDataReader() override;
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// Re-use any superclass signatures that we don't override.
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using vtkXMLPDataObjectReader::ReadPiece;
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/**
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* Delete all piece readers and related information
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*/
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void DestroyPieces() override;
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virtual vtkIdType GetNumberOfPoints() = 0;
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virtual vtkIdType GetNumberOfCells() = 0;
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/**
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* Get a given piece input as a dataset, return nullptr if there is none.
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*/
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vtkDataSet* GetPieceInputAsDataSet(int piece);
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/**
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* Initialize the output data
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*/
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void SetupOutputData() override;
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/**
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* Pipeline execute information driver. Called by vtkXMLReader.
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*/
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void SetupOutputInformation(vtkInformation* outInfo) override;
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/**
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* Setup the number of pieces to be read and allocate space accordingly
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*/
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void SetupPieces(int numPieces) override;
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/**
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* Whether or not the current reader can read the current piece
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*/
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int CanReadPiece(int index) override;
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/**
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* Create a reader according to the data to read. It needs to be overridden by subclass.
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*/
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virtual vtkXMLDataReader* CreatePieceReader() = 0;
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/**
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* Setup the current piece reader
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*/
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int ReadPiece(vtkXMLDataElement* ePiece) override;
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/**
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* Actually read the piece at the given index data
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*/
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int ReadPieceData(int index);
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/**
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* Actually read the current piece data
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*/
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virtual int ReadPieceData();
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/**
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* Read the information relative to the dataset and allocate the needed structures according to it
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*/
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int ReadPrimaryElement(vtkXMLDataElement* ePrimary) override;
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virtual void CopyArrayForPoints(vtkDataArray* inArray, vtkDataArray* outArray) = 0;
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virtual void CopyArrayForCells(vtkDataArray* inArray, vtkDataArray* outArray) = 0;
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/**
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* Callback registered with the PieceProgressObserver.
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*/
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void PieceProgressCallback() override;
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/**
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* The ghost level available on each input piece.
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*/
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int GhostLevel;
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/**
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* Information per-piece.
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*/
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vtkXMLDataReader** PieceReaders;
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/**
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* The PPointData and PCellData element representations.
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*/
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vtkXMLDataElement* PPointDataElement;
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vtkXMLDataElement* PCellDataElement;
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private:
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vtkXMLPDataReader(const vtkXMLPDataReader&) = delete;
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void operator=(const vtkXMLPDataReader&) = delete;
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};
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#endif
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