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77 lines
2.9 KiB
77 lines
2.9 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkSimpleImageToImageFilter.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkSimpleImageToImageFilter - Generic image filter with one input.
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// .SECTION Description
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// vtkSimpleImageToImageFilter is a filter which aims to avoid much
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// of the complexity associated with vtkImageAlgorithm (i.e.
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// support for pieces, multi-threaded operation). If you need to write
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// a simple image-image filter which operates on the whole input, use
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// this as the superclass. The subclass has to provide only an execute
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// method which takes input and output as arguments. Memory allocation
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// is handled in vtkSimpleImageToImageFilter. Also, you are guaranteed to
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// have a valid input in the Execute(input, output) method. By default,
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// this filter
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// requests it's input's whole extent and copies the input's information
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// (spacing, whole extent etc...) to the output. If the output's setup
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// is different (for example, if it performs some sort of sub-sampling),
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// ExecuteInformation has to be overwritten. As an example of how this
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// can be done, you can look at vtkImageShrink3D::ExecuteInformation.
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// For a complete example which uses templates to support generic data
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// types, see vtkSimpleFilterExample.
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// .SECTION See also
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// vtkImageAlgorithm vtkSimpleImageFilterExample
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#ifndef __vtkSimpleImageToImageFilter_h
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#define __vtkSimpleImageToImageFilter_h
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#include "vtkImageAlgorithm.h"
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class VTK_FILTERING_EXPORT vtkSimpleImageToImageFilter : public vtkImageAlgorithm
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{
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public:
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vtkTypeRevisionMacro(vtkSimpleImageToImageFilter,vtkImageAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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protected:
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vtkSimpleImageToImageFilter();
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~vtkSimpleImageToImageFilter();
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// These are called by the superclass.
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virtual int RequestUpdateExtent (vtkInformation *,
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vtkInformationVector **,
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vtkInformationVector *);
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// You don't have to touch this unless you have a good reason.
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virtual int RequestData(vtkInformation *,
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vtkInformationVector **,
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vtkInformationVector *);
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// In the simplest case, this is the only method you need to define.
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virtual void SimpleExecute(vtkImageData* input, vtkImageData* output) = 0;
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private:
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vtkSimpleImageToImageFilter(const vtkSimpleImageToImageFilter&); // Not implemented.
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void operator=(const vtkSimpleImageToImageFilter&); // Not implemented.
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};
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#endif
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