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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPiecewiseFunctionAlgorithm.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.
=========================================================================*/
/**
* @class vtkPiecewiseFunctionAlgorithm
* @brief Superclass for algorithms that produce only piecewise function as output
*
*
* vtkPiecewiseFunctionAlgorithm 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 classes
* constructor for the default. This class also provides a FillInputPortInfo
* method that by default says that all inputs will be PiecewiseFunction. 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).
*/
#ifndef vtkPiecewiseFunctionAlgorithm_h
#define vtkPiecewiseFunctionAlgorithm_h
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkAlgorithm.h"
#include "vtkPiecewiseFunction.h" // makes things a bit easier
class vtkDataSet;
class vtkDataObject;
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkPiecewiseFunctionAlgorithm : public vtkAlgorithm
{
public:
static vtkPiecewiseFunctionAlgorithm *New();
vtkTypeMacro(vtkPiecewiseFunctionAlgorithm,vtkAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
//@{
/**
* Get the output data object for a port on this algorithm.
*/
vtkDataObject* GetOutput();
vtkDataObject* GetOutput(int);
virtual void SetOutput(vtkDataObject* d);
//@}
/**
* see vtkAlgorithm for details
*/
int ProcessRequest(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*) VTK_OVERRIDE;
// this method is not recommended for use, but lots of old style filters
// use it
vtkDataObject* GetInput();
vtkDataObject *GetInput(int port);
//@{
/**
* 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 *);
void SetInputData(int, vtkDataObject*);
//@}
//@{
/**
* Assign a data object as input. Note that this method does not
* establish a pipeline connection. Use AddInputConnection() to
* setup a pipeline connection.
*/
void AddInputData(vtkDataObject *);
void AddInputData(int, vtkDataObject*);
//@}
protected:
vtkPiecewiseFunctionAlgorithm();
~vtkPiecewiseFunctionAlgorithm() VTK_OVERRIDE;
/**
* This is called by the superclass.
* This is the method you should override.
*/
virtual int RequestData(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector);
// see algorithm for more info
int FillOutputPortInformation(int port, vtkInformation* info) VTK_OVERRIDE;
int FillInputPortInformation(int port, vtkInformation* info) VTK_OVERRIDE;
private:
vtkPiecewiseFunctionAlgorithm(const vtkPiecewiseFunctionAlgorithm&) VTK_DELETE_FUNCTION;
void operator=(const vtkPiecewiseFunctionAlgorithm&) VTK_DELETE_FUNCTION;
};
#endif
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