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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.
=========================================================================*/
/**
* @class vtkSimpleImageToImageFilter
* @brief Generic image filter with one input.
*
* 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.
*
* @sa
* 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) VTK_OVERRIDE;
protected:
vtkSimpleImageToImageFilter();
~vtkSimpleImageToImageFilter() VTK_OVERRIDE;
// These are called by the superclass.
int RequestUpdateExtent (vtkInformation *,
vtkInformationVector **,
vtkInformationVector *) VTK_OVERRIDE;
// You don't have to touch this unless you have a good reason.
int RequestData(vtkInformation *,
vtkInformationVector **,
vtkInformationVector *) VTK_OVERRIDE;
// 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&) VTK_DELETE_FUNCTION;
void operator=(const vtkSimpleImageToImageFilter&) VTK_DELETE_FUNCTION;
};
#endif
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