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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkRectilinearGridAlgorithm.h,v $
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.
=========================================================================*/
// .NAME vtkRectilinearGridAlgorithm - Superclass for algorithms that produce only rectilinear grid as output
// .SECTION Description
// vtkRectilinearGridAlgorithm is a convenience class to make writing algorithms
// easier. It is also designed to help transition old algorithms to the new
// pipeline architecture. Ther 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 RectilinearGrid. If that
// isn't the case then please override this method in your subclass. This
// class breaks out the downstream requests into seperate functions such as
// ExecuteData and ExecuteInformation. For new algorithms you should
// implement RequestData( request, inputVec, outputVec) but for older filters
// there is a default implementation that calls the old ExecuteData(output)
// signature, for even older filters that don;t implement ExecuteData the
// default implementation calls the even older Execute() signature.
#ifndef __vtkRectilinearGridAlgorithm_h
#define __vtkRectilinearGridAlgorithm_h
#include "vtkAlgorithm.h"
#include "vtkRectilinearGrid.h" // makes things a bit easier
class vtkDataSet;
class vtkRectilinearGrid;
class VTK_FILTERING_EXPORT vtkRectilinearGridAlgorithm : public vtkAlgorithm
{
public:
static vtkRectilinearGridAlgorithm *New();
vtkTypeRevisionMacro(vtkRectilinearGridAlgorithm,vtkAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Get the output data object for a port on this algorithm.
vtkRectilinearGrid* GetOutput();
vtkRectilinearGrid* GetOutput(int);
virtual void SetOutput(vtkDataObject* d);
// Description:
// see vtkAlgorithm for details
virtual int ProcessRequest(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
// this method is not recommended for use, but lots of old style filters
// use it
vtkDataObject* GetInput();
vtkDataObject *GetInput(int port);
vtkRectilinearGrid *GetRectilinearGridInput(int port);
// Description:
// Set an input of this algorithm. You should not override these
// methods because they are not the only way to connect a pipeline.
// Note that these methods support old-style pipeline connections.
// When writing new code you should use the more general
// vtkAlgorithm::SetInputConnection(). These methods transform the
// input index to the input port index, not an index of a connection
// within a single port.
void SetInput(vtkDataObject *);
void SetInput(int, vtkDataObject*);
// Description:
// Add an input of this algorithm. Note that these methods support
// old-style pipeline connections. When writing new code you should
// use the more general vtkAlgorithm::AddInputConnection(). See
// SetInput() for details.
void AddInput(vtkDataObject *);
void AddInput(int, vtkDataObject*);
protected:
vtkRectilinearGridAlgorithm();
~vtkRectilinearGridAlgorithm();
// convenience method
virtual int RequestInformation(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*)
{
return 1;
};
// Description:
// This method is the old style execute method
virtual void ExecuteData(vtkDataObject *output);
virtual void Execute();
// see algorithm for more info
virtual int FillOutputPortInformation(int port, vtkInformation* info);
virtual int FillInputPortInformation(int port, vtkInformation* info);
private:
vtkRectilinearGridAlgorithm(const vtkRectilinearGridAlgorithm&); // Not implemented.
void operator=(const vtkRectilinearGridAlgorithm&); // Not implemented.
};
#endif
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