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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkReebGraphToJoinSplitTreeFilter
* @brief converts a given Reeb graph
* either to a join tree or a split tree (respectively the connectivity of the
* sub- and sur- level sets).
* Note: if you want to use simplification filters, do so on the input Reeb
* graph first.
*
* Reference:
* "Computing contpour trees in all dimensions". H. Carr, J. Snoeyink, U. Axen.
* SODA 2000, pp. 918-926.
*
*
* The filter takes as an input the underlying mesh (port 0, a vtkPolyData for
* 2D meshes or a vtkUnstructuredGrid for 3D meshes) with an attached scalar
* field (identified by FieldId, with setFieldId()) and an input Reeb graph
* computed on that mesh (port 1).
* The outputs is vtkReebGraph object describing either a join or split tree.
*/
#ifndef vtkReebGraphToJoinSplitTreeFilter_h
#define vtkReebGraphToJoinSplitTreeFilter_h
#include "vtkDirectedGraphAlgorithm.h"
#include "vtkFiltersReebGraphModule.h" // For export macro
VTK_ABI_NAMESPACE_BEGIN
class vtkReebGraph;
class VTKFILTERSREEBGRAPH_EXPORT vtkReebGraphToJoinSplitTreeFilter
: public vtkDirectedGraphAlgorithm
{
public:
static vtkReebGraphToJoinSplitTreeFilter* New();
vtkTypeMacro(vtkReebGraphToJoinSplitTreeFilter, vtkDirectedGraphAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@{
/**
* Specify if you want to get a join or a split tree.
* Default value: false (join tree)
*/
vtkSetMacro(IsSplitTree, bool);
vtkGetMacro(IsSplitTree, bool);
///@}
///@{
/**
* Set the scalar field Id
* Default value: 0;
*/
vtkSetMacro(FieldId, vtkIdType);
vtkGetMacro(FieldId, vtkIdType);
///@}
vtkReebGraph* GetOutput();
protected:
vtkReebGraphToJoinSplitTreeFilter();
~vtkReebGraphToJoinSplitTreeFilter() override;
bool IsSplitTree;
vtkIdType FieldId;
int FillInputPortInformation(int portNumber, vtkInformation*) override;
int FillOutputPortInformation(int, vtkInformation*) override;
int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
private:
vtkReebGraphToJoinSplitTreeFilter(const vtkReebGraphToJoinSplitTreeFilter&) = delete;
void operator=(const vtkReebGraphToJoinSplitTreeFilter&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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