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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkExtractLevel
* @brief extract levels between min and max from a
* hierarchical box dataset.
*
* vtkExtractLevel filter extracts the levels between (and including) the user
* specified min and max levels.
*/
#ifndef vtkExtractLevel_h
#define vtkExtractLevel_h
#include "vtkFiltersExtractionModule.h" // For export macro
#include "vtkMultiBlockDataSetAlgorithm.h"
VTK_ABI_NAMESPACE_BEGIN
class VTKFILTERSEXTRACTION_EXPORT vtkExtractLevel : public vtkMultiBlockDataSetAlgorithm
{
public:
static vtkExtractLevel* New();
vtkTypeMacro(vtkExtractLevel, vtkMultiBlockDataSetAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Select the levels that should be extracted. All other levels will have no
* datasets in them.
*/
void AddLevel(unsigned int level);
void RemoveLevel(unsigned int level);
void RemoveAllLevels();
///@}
protected:
vtkExtractLevel();
~vtkExtractLevel() override;
int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
/// Implementation of the algorithm.
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int FillInputPortInformation(int port, vtkInformation* info) override;
int FillOutputPortInformation(int port, vtkInformation* info) override;
private:
vtkExtractLevel(const vtkExtractLevel&) = delete;
void operator=(const vtkExtractLevel&) = delete;
class vtkSet;
vtkSet* Levels;
};
VTK_ABI_NAMESPACE_END
#endif
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