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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile$
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.
=========================================================================*/
// .NAME vtkReebGraphToJoinSplitTreeFilter - 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.
//
// .SECTION Description
// 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"
class vtkReebGraph;
class VTK_GRAPHICS_EXPORT vtkReebGraphToJoinSplitTreeFilter :
public vtkDirectedGraphAlgorithm
{
public:
static vtkReebGraphToJoinSplitTreeFilter* New();
vtkTypeMacro(vtkReebGraphToJoinSplitTreeFilter,
vtkDirectedGraphAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Specify if you want to get a join or a split tree.
// Default value: false (join tree)
vtkSetMacro(IsSplitTree, bool);
vtkGetMacro(IsSplitTree, bool);
// Description:
// Set the scalar field Id
// Default value: 0;
vtkSetMacro(FieldId, vtkIdType);
vtkGetMacro(FieldId, vtkIdType);
vtkReebGraph* GetOutput();
protected:
vtkReebGraphToJoinSplitTreeFilter();
~vtkReebGraphToJoinSplitTreeFilter();
bool IsSplitTree;
vtkIdType FieldId;
int FillInputPortInformation(int portNumber, vtkInformation *);
int FillOutputPortInformation(int, vtkInformation *);
int RequestData(vtkInformation *request,
vtkInformationVector **inputVector, vtkInformationVector *outputVector);
private:
vtkReebGraphToJoinSplitTreeFilter(const vtkReebGraphToJoinSplitTreeFilter&); // Not implemented.
void operator=(const vtkReebGraphToJoinSplitTreeFilter&); // Not implemented.
};
#endif
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