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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkUnstructuredGridToReebGraphFilter
* @brief generate a Reeb graph from a
* scalar field defined on a vtkUnstructuredGrid.
*
* The filter will first try to pull as a scalar field the vtkDataArray with
* Id 'fieldId' of the mesh's vtkPointData.
* If this field does not exist, the filter will use the vtkElevationFilter to
* generate a default scalar field.
*/
#ifndef vtkUnstructuredGridToReebGraphFilter_h
#define vtkUnstructuredGridToReebGraphFilter_h
#include "vtkDirectedGraphAlgorithm.h"
#include "vtkFiltersReebGraphModule.h" // For export macro
VTK_ABI_NAMESPACE_BEGIN
class vtkReebGraph;
class VTKFILTERSREEBGRAPH_EXPORT vtkUnstructuredGridToReebGraphFilter
: public vtkDirectedGraphAlgorithm
{
public:
static vtkUnstructuredGridToReebGraphFilter* New();
vtkTypeMacro(vtkUnstructuredGridToReebGraphFilter, vtkDirectedGraphAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Set the scalar field id (default = 0).
*/
vtkSetMacro(FieldId, int);
vtkGetMacro(FieldId, int);
///@}
vtkReebGraph* GetOutput();
protected:
vtkUnstructuredGridToReebGraphFilter();
~vtkUnstructuredGridToReebGraphFilter() override;
int FieldId;
int FillInputPortInformation(int portNumber, vtkInformation*) override;
int FillOutputPortInformation(int, vtkInformation*) override;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
private:
vtkUnstructuredGridToReebGraphFilter(const vtkUnstructuredGridToReebGraphFilter&) = delete;
void operator=(const vtkUnstructuredGridToReebGraphFilter&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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