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/*=========================================================================
Program: Visualization Toolkit
Module: vtkExtractSelectedGraph.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.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
/**
* @class vtkExtractSelectedGraph
* @brief return a subgraph of a vtkGraph
*
*
* The first input is a vtkGraph to take a subgraph from.
* The second input (optional) is a vtkSelection containing selected
* indices. The third input (optional) is a vtkAnnotationsLayers whose
* annotations contain selected specifying selected indices.
* The vtkSelection may have FIELD_TYPE set to POINTS (a vertex selection)
* or CELLS (an edge selection). A vertex selection preserves all edges
* that connect selected vertices. An edge selection preserves all vertices
* that are adjacent to at least one selected edge. Alternately, you may
* indicate that an edge selection should maintain the full set of vertices,
* by turning RemoveIsolatedVertices off.
*/
#ifndef vtkExtractSelectedGraph_h
#define vtkExtractSelectedGraph_h
#include "vtkGraphAlgorithm.h"
#include "vtkInfovisCoreModule.h" // For export macro
class vtkSelection;
class vtkDataSet;
class VTKINFOVISCORE_EXPORT vtkExtractSelectedGraph : public vtkGraphAlgorithm
{
public:
static vtkExtractSelectedGraph* New();
vtkTypeMacro(vtkExtractSelectedGraph, vtkGraphAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* A convenience method for setting the second input (i.e. the selection).
*/
void SetSelectionConnection(vtkAlgorithmOutput* in);
/**
* A convenience method for setting the third input (i.e. the annotation layers).
*/
void SetAnnotationLayersConnection(vtkAlgorithmOutput* in);
//@{
/**
* If set, removes vertices with no adjacent edges in an edge selection.
* A vertex selection ignores this flag and always returns the full set
* of selected vertices. Default is on.
*/
vtkSetMacro(RemoveIsolatedVertices, bool);
vtkGetMacro(RemoveIsolatedVertices, bool);
vtkBooleanMacro(RemoveIsolatedVertices, bool);
//@}
/**
* Specify the first vtkGraph input and the second vtkSelection input.
*/
int FillInputPortInformation(int port, vtkInformation* info) override;
protected:
vtkExtractSelectedGraph();
~vtkExtractSelectedGraph() override;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int RequestDataObject(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
bool RemoveIsolatedVertices;
private:
vtkExtractSelectedGraph(const vtkExtractSelectedGraph&) = delete;
void operator=(const vtkExtractSelectedGraph&) = delete;
};
#endif