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/*=========================================================================
Program: Visualization Toolkit
Module: vtkExtractTemporalFieldData.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkExtractTemporalFieldData
* @brief Extract temporal arrays from input field data
*
* vtkExtractTemporalFieldData extracts arrays from the input vtkFieldData.
* These arrays are assumed to contain temporal data, where the nth tuple
* contains the value for the nth timestep.
*
* For composite datasets, the filter has two modes, it can treat each block in
* the dataset individually (default) or just look at the first non-empty field data
* (common for readers vtkExodusIIReader). For latter, set
* HandleCompositeDataBlocksIndividually to false.
*
* The output is a vtkTable (or a multiblock of vtkTables) based of whether
* HandleCompositeDataBlocksIndividually is true and input is a composite
* dataset.
*
* This algorithm does not produce a TIME_STEPS or TIME_RANGE information
* because it works across time.
*
* @par Caveat:
* This algorithm works only with source that produce TIME_STEPS().
* Continuous time range is not yet supported.
*/
#ifndef vtkExtractTemporalFieldData_h
#define vtkExtractTemporalFieldData_h
#include "vtkFiltersExtractionModule.h" // For export macro
#include "vtkDataObjectAlgorithm.h"
class vtkDataSet;
class vtkTable;
class vtkDataSetAttributes;
class VTKFILTERSEXTRACTION_EXPORT vtkExtractTemporalFieldData : public vtkDataObjectAlgorithm
{
public:
static vtkExtractTemporalFieldData *New();
vtkTypeMacro(vtkExtractTemporalFieldData,vtkDataObjectAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
/**
* Get the number of time steps
*/
int GetNumberOfTimeSteps();
//@{
/**
* When set to true (default), if the input is a vtkCompositeDataSet, then
* each block in the input dataset in processed separately. If false, then the first
* non-empty FieldData is considered.
*/
vtkSetMacro(HandleCompositeDataBlocksIndividually, bool);
vtkGetMacro(HandleCompositeDataBlocksIndividually, bool);
vtkBooleanMacro(HandleCompositeDataBlocksIndividually, bool);
//@}
protected:
vtkExtractTemporalFieldData();
~vtkExtractTemporalFieldData();
int RequestDataObject(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*) VTK_OVERRIDE;
int RequestInformation(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector) VTK_OVERRIDE;
int RequestData(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector) VTK_OVERRIDE;
int FillInputPortInformation(int port, vtkInformation* info) VTK_OVERRIDE;
/**
* This looks at the arrays in the vtkFieldData of input and copies them
* to the output point data.
* Returns true if the input had an "appropriate" field data.
*/
bool CopyDataToOutput(vtkDataSet *input, vtkTable *output);
bool HandleCompositeDataBlocksIndividually;
private:
vtkExtractTemporalFieldData(const vtkExtractTemporalFieldData&) VTK_DELETE_FUNCTION;
void operator=(const vtkExtractTemporalFieldData&) VTK_DELETE_FUNCTION;
class vtkInternals;
vtkInternals* Internals;
};
#endif
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