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95 lines
3.3 KiB
C
95 lines
3.3 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkExtractSelectedGraph.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/*-------------------------------------------------------------------------
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Copyright 2008 Sandia Corporation.
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Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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the U.S. Government retains certain rights in this software.
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-------------------------------------------------------------------------*/
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/**
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* @class vtkExtractSelectedGraph
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* @brief return a subgraph of a vtkGraph
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*
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*
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* The first input is a vtkGraph to take a subgraph from.
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* The second input (optional) is a vtkSelection containing selected
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* indices. The third input (optional) is a vtkAnnotationsLayers whose
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* annotations contain selected specifying selected indices.
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* The vtkSelection may have FIELD_TYPE set to POINTS (a vertex selection)
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* or CELLS (an edge selection). A vertex selection preserves all edges
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* that connect selected vertices. An edge selection preserves all vertices
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* that are adjacent to at least one selected edge. Alternately, you may
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* indicate that an edge selection should maintain the full set of vertices,
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* by turning RemoveIsolatedVertices off.
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*/
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#ifndef vtkExtractSelectedGraph_h
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#define vtkExtractSelectedGraph_h
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#include "vtkGraphAlgorithm.h"
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#include "vtkInfovisCoreModule.h" // For export macro
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class vtkSelection;
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class vtkDataSet;
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class VTKINFOVISCORE_EXPORT vtkExtractSelectedGraph : public vtkGraphAlgorithm
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{
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public:
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static vtkExtractSelectedGraph* New();
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vtkTypeMacro(vtkExtractSelectedGraph, vtkGraphAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* A convenience method for setting the second input (i.e. the selection).
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*/
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void SetSelectionConnection(vtkAlgorithmOutput* in);
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/**
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* A convenience method for setting the third input (i.e. the annotation layers).
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*/
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void SetAnnotationLayersConnection(vtkAlgorithmOutput* in);
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//@{
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/**
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* If set, removes vertices with no adjacent edges in an edge selection.
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* A vertex selection ignores this flag and always returns the full set
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* of selected vertices. Default is on.
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*/
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vtkSetMacro(RemoveIsolatedVertices, bool);
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vtkGetMacro(RemoveIsolatedVertices, bool);
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vtkBooleanMacro(RemoveIsolatedVertices, bool);
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//@}
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/**
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* Specify the first vtkGraph input and the second vtkSelection input.
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*/
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int FillInputPortInformation(int port, vtkInformation* info) override;
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protected:
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vtkExtractSelectedGraph();
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~vtkExtractSelectedGraph() override;
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int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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int RequestDataObject(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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bool RemoveIsolatedVertices;
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private:
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vtkExtractSelectedGraph(const vtkExtractSelectedGraph&) = delete;
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void operator=(const vtkExtractSelectedGraph&) = delete;
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};
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#endif
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