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81 lines
3.4 KiB
C
81 lines
3.4 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkExtractExodusGlobalTemporalVariables.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 vtkExtractExodusGlobalTemporalVariables
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* @brief extract global temporal arrays generated by vtkExodusIIReader
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*
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* vtkExtractExodusGlobalTemporalVariables is intended to extract global
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* temporal arrays generated by vtkExodusIIReader.
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*
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* Global temporal variables are special arrays that have values per timestep.
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* vtkExodusIIReader can read these values for all timestep and provide them
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* easily, thus avoiding the need to read all timesteps to extract these values
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* over timesteps. A slight complication is with ParaView, where ParaView
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* supports what are referred to as restarts i.e. instead of a single file
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* having all timesteps, the timesteps are arbitrarily split among multiple
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* files. For such cases, this filter needs to iterate over all the files to
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* accumulate the data. Since there's no information about files or ability to
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* request the upstream reader to read a particular file, this filter request
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* specific timesteps using some smarts to determine which timestep to request
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* and not simply loop over all timesteps.
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*
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* @sa vtkExodusIIReader, vtkExodusIIReader::GLOBAL_TEMPORAL_VARIABLE.
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*/
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#ifndef vtkExtractExodusGlobalTemporalVariables_h
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#define vtkExtractExodusGlobalTemporalVariables_h
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#include "vtkFiltersExtractionModule.h" // For export macro
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#include "vtkTableAlgorithm.h"
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#include <memory> // for std::unique_ptr
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class VTKFILTERSEXTRACTION_EXPORT vtkExtractExodusGlobalTemporalVariables : public vtkTableAlgorithm
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{
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public:
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static vtkExtractExodusGlobalTemporalVariables* New();
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vtkTypeMacro(vtkExtractExodusGlobalTemporalVariables, vtkTableAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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protected:
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vtkExtractExodusGlobalTemporalVariables();
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~vtkExtractExodusGlobalTemporalVariables() override;
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int FillInputPortInformation(int port, vtkInformation* info) override;
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int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
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vtkInformationVector* outputVector) override;
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int RequestUpdateExtent(vtkInformation* request, vtkInformationVector** inputVector,
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vtkInformationVector* outputVector) override;
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int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
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vtkInformationVector* outputVector) override;
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//@{
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/**
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* These methods are used by vtkPExtractExodusGlobalTemporalVariables to
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* synchronize internal state between ranks.
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*/
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void GetContinuationState(bool& continue_executing_flag, size_t& offset) const;
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void SetContinuationState(bool continue_executing_flag, size_t offset);
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//@}
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private:
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vtkExtractExodusGlobalTemporalVariables(const vtkExtractExodusGlobalTemporalVariables&) = delete;
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void operator=(const vtkExtractExodusGlobalTemporalVariables&) = delete;
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class vtkInternals;
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std::unique_ptr<vtkInternals> Internals;
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};
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#endif
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