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111 lines
4.3 KiB
C++
111 lines
4.3 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkGraphAlgorithm.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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// .NAME vtkGraphAlgorithm - Superclass for algorithms that produce only graph as output
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//
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// .SECTION Description
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// vtkGraphAlgorithm is a convenience class to make writing algorithms
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// easier. It is also designed to help transition old algorithms to the new
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// pipeline architecture. There are some assumptions and defaults made by this
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// class you should be aware of. This class defaults such that your filter
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// will have one input port and one output port. If that is not the case
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// simply change it with SetNumberOfInputPorts etc. See this class
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// constructor for the default. This class also provides a FillInputPortInfo
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// method that by default says that all inputs will be Graph. If that
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// isn't the case then please override this method in your subclass.
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// You should implement the subclass's algorithm into
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// RequestData( request, inputVec, outputVec).
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//
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// .SECTION Thanks
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// Thanks to Patricia Crossno, Ken Moreland, Andrew Wilson and Brian Wylie from
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// Sandia National Laboratories for their help in developing this class.
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#ifndef vtkGraphAlgorithm_h
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#define vtkGraphAlgorithm_h
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#include "vtkCommonExecutionModelModule.h" // For export macro
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#include "vtkAlgorithm.h"
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#include "vtkGraph.h" // makes things a bit easier
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class vtkDataSet;
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class VTKCOMMONEXECUTIONMODEL_EXPORT vtkGraphAlgorithm : public vtkAlgorithm
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{
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public:
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static vtkGraphAlgorithm *New();
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vtkTypeMacro(vtkGraphAlgorithm,vtkAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// see vtkAlgorithm for details
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virtual int ProcessRequest(vtkInformation*,
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vtkInformationVector**,
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vtkInformationVector*);
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// Description:
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// Get the output data object for a port on this algorithm.
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vtkGraph* GetOutput() { return this->GetOutput(0); }
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vtkGraph* GetOutput(int index);
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// Description:
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// Assign a data object as input. Note that this method does not
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// establish a pipeline connection. Use SetInputConnection() to
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// setup a pipeline connection.
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void SetInputData(vtkDataObject * obj) { this->SetInputData(0, obj); }
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void SetInputData(int index, vtkDataObject* obj);
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protected:
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vtkGraphAlgorithm();
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~vtkGraphAlgorithm();
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// convenience method
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virtual int RequestInformation(vtkInformation* request,
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vtkInformationVector** inputVector,
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vtkInformationVector* outputVector);
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virtual int RequestDataObject(vtkInformation* request,
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vtkInformationVector** inputVector,
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vtkInformationVector* outputVector);
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// Description:
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// This is called by the superclass.
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// This is the method you should override.
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virtual int RequestData(vtkInformation* request,
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vtkInformationVector** inputVector,
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vtkInformationVector* outputVector);
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// Description:
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// This is called by the superclass.
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// This is the method you should override.
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virtual int RequestUpdateExtent(vtkInformation*,
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vtkInformationVector**,
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vtkInformationVector*);
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// see algorithm for more info
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virtual int FillOutputPortInformation(int port, vtkInformation* info);
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virtual int FillInputPortInformation(int port, vtkInformation* info);
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private:
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vtkGraphAlgorithm(const vtkGraphAlgorithm&); // Not implemented.
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void operator=(const vtkGraphAlgorithm&); // Not implemented.
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};
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#endif
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