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vtkExtractSelectedGraph.h
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vtkExtractSelectedGraph.h
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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.
-------------------------------------------------------------------------*/
// .NAME vtkExtractSelectedGraph - return a subgraph of a vtkGraph
//
// .SECTION Description
// 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 "vtkInfovisCoreModule.h" // For export macro
#include "vtkGraphAlgorithm.h"
class vtkSelection;
class vtkDataSet;
class VTKINFOVISCORE_EXPORT vtkExtractSelectedGraph : public vtkGraphAlgorithm
{
public:
static vtkExtractSelectedGraph* New();
vtkTypeMacro(vtkExtractSelectedGraph,vtkGraphAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// A convenience method for setting the second input (i.e. the selection).
void SetSelectionConnection(vtkAlgorithmOutput* in);
// Description:
// A convenience method for setting the third input (i.e. the annotation layers).
void SetAnnotationLayersConnection(vtkAlgorithmOutput* in);
// Description:
// 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);
// Description:
// Specify the first vtkGraph input and the second vtkSelection input.
int FillInputPortInformation(int port, vtkInformation* info);
protected:
vtkExtractSelectedGraph();
~vtkExtractSelectedGraph();
int RequestData(
vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
int RequestDataObject(
vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
bool RemoveIsolatedVertices;
private:
vtkExtractSelectedGraph(const vtkExtractSelectedGraph&); // Not implemented
void operator=(const vtkExtractSelectedGraph&); // Not implemented
};
#endif