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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkPeriodicBoundaryCondition.h,v $
Language: C++
Date: $Date: 2007-01-30 20:56:09 $
Version: $Revision: 1.5 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/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 notices for more information.
=========================================================================*/
#ifndef __itkPeriodicBoundaryCondition_h
#define __itkPeriodicBoundaryCondition_h
#include "itkNeighborhood.h"
#include "itkImageBoundaryCondition.h"
namespace itk
{
/** \class PeriodicBoundaryCondition
* \brief
* A function object that determines values outside of image boundaries
* according to periodic (wrap-around) conditions.
*
* The input to this function object is a neighborhood iterator. This boundary
* condition object is designed to be given as a template argument to a
* NeighborhoodIterator or any of the NeighborhoodIterator subclasses.
*
* \ingroup DataRepresentation
* \ingroup ImageObjects
*/
template<class TImage>
class ITK_EXPORT PeriodicBoundaryCondition
: public ImageBoundaryCondition<TImage>
{
public:
/** Standard class typedefs. */
typedef PeriodicBoundaryCondition Self;
typedef ImageBoundaryCondition<TImage> Superclass;
/** Extract information from the image type. */
typedef typename Superclass::PixelType PixelType;
typedef typename Superclass::PixelPointerType PixelPointerType;
typedef typename Superclass::IndexType IndexType;
typedef typename Superclass::OffsetType OffsetType;
typedef typename Superclass::NeighborhoodType NeighborhoodType;
typedef typename Superclass::NeighborhoodAccessorFunctorType
NeighborhoodAccessorFunctorType;
/** Extract information from the image type. */
itkStaticConstMacro(ImageDimension, unsigned int,Superclass::ImageDimension);
/** Default constructor. */
PeriodicBoundaryCondition() {}
/** Computes and returns a neighborhood of appropriate values from
* neighborhood iterator data.. */
virtual PixelType operator()(const OffsetType& point_index,
const OffsetType& boundary_offset,
const NeighborhoodType *data) const;
/** Computes and returns the appropriate pixel value from
* neighborhood iterator data, using the functor. */
virtual PixelType operator()(
const OffsetType& point_index,
const OffsetType& boundary_offset,
const NeighborhoodType *data,
const NeighborhoodAccessorFunctorType &neighborhoodAccessorFunctor) const;
};
} // end namespace itk
// Define instantiation macro for this template.
#define ITK_TEMPLATE_PeriodicBoundaryCondition(_, EXPORT, x, y) namespace itk { \
_(1(class EXPORT PeriodicBoundaryCondition< ITK_TEMPLATE_1 x >)) \
namespace Templates { typedef PeriodicBoundaryCondition< ITK_TEMPLATE_1 x > \
PeriodicBoundaryCondition##y; } \
}
#if ITK_TEMPLATE_EXPLICIT
# include "Templates/itkPeriodicBoundaryCondition+-.h"
#endif
#if ITK_TEMPLATE_TXX
# include "itkPeriodicBoundaryCondition.txx"
#endif
#endif
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