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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageAlgorithm.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.
=========================================================================*/
// .NAME vtkImageAlgorithm - Generic algorithm superclass for image algs
// .SECTION Description
// vtkImageAlgorithm is a filter superclass that hides much of the
// pipeline complexity. It handles breaking the pipeline execution
// into smaller extents so that the vtkImageData limits are observed. It
// also provides support for multithreading. If you don't need any of this
// functionality, consider using vtkSimpleImageToImageFilter instead.
// .SECTION See also
// vtkSimpleImageToImageFilter
#ifndef __vtkImageAlgorithm_h
#define __vtkImageAlgorithm_h
#include "vtkAlgorithm.h"
class vtkDataSet;
class vtkImageData;
class VTK_FILTERING_EXPORT vtkImageAlgorithm : public vtkAlgorithm
{
public:
vtkTypeMacro(vtkImageAlgorithm,vtkAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Get the output data object for a port on this algorithm.
vtkImageData* GetOutput();
vtkImageData* GetOutput(int);
virtual void SetOutput(vtkDataObject* d);
// Description:
// see vtkAlgorithm for details
virtual int ProcessRequest(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
// 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*);
// this method is not recommended for use, but lots of old style filters
// use it
vtkDataObject *GetInput(int port);
vtkDataObject *GetInput() { return this->GetInput(0); };
vtkImageData *GetImageDataInput(int port);
// 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.
virtual void AddInput(vtkDataObject *);
virtual void AddInput(int, vtkDataObject*);
protected:
vtkImageAlgorithm();
~vtkImageAlgorithm();
// convenience method
virtual int RequestInformation(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector);
virtual int RequestUpdateExtent(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
// convenience method to copy the selected scalars type and num components
// to the output info. Call this from inside your RequestInformation
virtual void CopyInputArrayAttributesToOutput(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 method is the old style execute method
virtual void ExecuteData(vtkDataObject *output);
virtual void Execute();
// just allocate the output data
virtual void AllocateOutputData(vtkImageData *out,
int *uExtent);
virtual vtkImageData *AllocateOutputData(vtkDataObject *out);
// copy the other point and cell data
virtual void CopyAttributeData(vtkImageData *in, vtkImageData *out,
vtkInformationVector** inputVector);
// see algorithm for more info
virtual int FillOutputPortInformation(int port, vtkInformation* info);
virtual int FillInputPortInformation(int port, vtkInformation* info);
private:
vtkImageAlgorithm(const vtkImageAlgorithm&); // Not implemented.
void operator=(const vtkImageAlgorithm&); // Not implemented.
};
#endif
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