vtkImageSpatialAlgorithm.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkImageSpatialAlgorithm.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.

=========================================================================*/
#ifndef vtkImageSpatialAlgorithm_h
#define vtkImageSpatialAlgorithm_h


#include "vtkImagingGeneralModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"

class VTKIMAGINGGENERAL_EXPORT vtkImageSpatialAlgorithm : public vtkThreadedImageAlgorithm
{
public:
  static vtkImageSpatialAlgorithm *New();
  vtkTypeMacro(vtkImageSpatialAlgorithm,vtkThreadedImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkGetVector3Macro(KernelSize,int);


  vtkGetVector3Macro(KernelMiddle,int);

protected:
  vtkImageSpatialAlgorithm();
  ~vtkImageSpatialAlgorithm() {}

  int   KernelSize[3];
  int   KernelMiddle[3];      // Index of kernel origin
  int   HandleBoundaries;     // Output shrinks if boundaries aren't handled

  virtual int RequestInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *);

  void ComputeOutputWholeExtent(int extent[6], int handleBoundaries);
  virtual int RequestUpdateExtent(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  void InternalRequestUpdateExtent(int *extent, int *inExtent, int *wholeExtent);

private:
  vtkImageSpatialAlgorithm(const vtkImageSpatialAlgorithm&);  // Not implemented.
  void operator=(const vtkImageSpatialAlgorithm&);  // Not implemented.
};

#endif