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76 lines
2.4 KiB
76 lines
2.4 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkImageSpatialAlgorithm.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 vtkImageSpatialAlgorithm - Filters that operate on pixel neighborhoods.
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// .SECTION Description
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// vtkImageSpatialAlgorithm is a super class for filters that operate on an
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// input neighborhood for each output pixel. It handles even sized
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// neighborhoods, but their can be a half pixel shift associated with
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// processing. This superclass has some logic for handling boundaries. It
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// can split regions into boundary and non-boundary pieces and call different
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// execute methods.
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#ifndef __vtkImageSpatialAlgorithm_h
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#define __vtkImageSpatialAlgorithm_h
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#include "vtkThreadedImageAlgorithm.h"
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class VTK_IMAGING_EXPORT vtkImageSpatialAlgorithm : public vtkThreadedImageAlgorithm
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{
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public:
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static vtkImageSpatialAlgorithm *New();
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vtkTypeRevisionMacro(vtkImageSpatialAlgorithm,vtkThreadedImageAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Get the Kernel size.
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int *GetKernelSize() {return this->KernelSize;}
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// Description:
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// Get the Kernel middle.
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int *GetKernelMiddle() {return this->KernelMiddle;}
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protected:
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vtkImageSpatialAlgorithm();
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~vtkImageSpatialAlgorithm() {};
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int KernelSize[3];
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int KernelMiddle[3]; // Index of kernel origin
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int Strides[3]; // Shrink factor
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int HandleBoundaries; // Output shrinks if boundaries aren't handled
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virtual int RequestInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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void ComputeOutputWholeExtent(int extent[6], int handleBoundaries);
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virtual int RequestUpdateExtent(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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void InternalRequestUpdateExtent(int *extent, int *inExtent, int *wholeExtent);
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private:
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vtkImageSpatialAlgorithm(const vtkImageSpatialAlgorithm&); // Not implemented.
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void operator=(const vtkImageSpatialAlgorithm&); // Not implemented.
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};
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#endif
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