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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSimpleImageToImageFilter.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 vtkSimpleImageToImageFilter - Generic image filter with one input.
// .SECTION Description
// vtkSimpleImageToImageFilter is a filter which aims to avoid much
// of the complexity associated with vtkImageAlgorithm (i.e.
// support for pieces, multi-threaded operation). If you need to write
// a simple image-image filter which operates on the whole input, use
// this as the superclass. The subclass has to provide only an execute
// method which takes input and output as arguments. Memory allocation
// is handled in vtkSimpleImageToImageFilter. Also, you are guaranteed to
// have a valid input in the Execute(input, output) method. By default,
// this filter
// requests it's input's whole extent and copies the input's information
// (spacing, whole extent etc...) to the output. If the output's setup
// is different (for example, if it performs some sort of sub-sampling),
// ExecuteInformation has to be overwritten. As an example of how this
// can be done, you can look at vtkImageShrink3D::ExecuteInformation.
// For a complete example which uses templates to support generic data
// types, see vtkSimpleImageToImageFilter.
// .SECTION See also
// vtkImageAlgorithm vtkSimpleImageFilterExample
#ifndef vtkSimpleImageToImageFilter_h
#define vtkSimpleImageToImageFilter_h
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkImageAlgorithm.h"
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkSimpleImageToImageFilter : public vtkImageAlgorithm
{
public:
vtkTypeMacro(vtkSimpleImageToImageFilter,vtkImageAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
protected:
vtkSimpleImageToImageFilter();
~vtkSimpleImageToImageFilter();
// These are called by the superclass.
virtual int RequestUpdateExtent (vtkInformation *,
vtkInformationVector **,
vtkInformationVector *);
// You don't have to touch this unless you have a good reason.
virtual int RequestData(vtkInformation *,
vtkInformationVector **,
vtkInformationVector *);
// In the simplest case, this is the only method you need to define.
virtual void SimpleExecute(vtkImageData* input, vtkImageData* output) = 0;
private:
vtkSimpleImageToImageFilter(const vtkSimpleImageToImageFilter&); // Not implemented.
void operator=(const vtkSimpleImageToImageFilter&); // Not implemented.
};
#endif
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