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