itkZeroFluxNeumannBoundaryCondition.h

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 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
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 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
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 *=========================================================================*/
#ifndef itkZeroFluxNeumannBoundaryCondition_h
#define itkZeroFluxNeumannBoundaryCondition_h
#include "itkImageBoundaryCondition.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage = TInputImage >
class ZeroFluxNeumannBoundaryCondition:
    public ImageBoundaryCondition< TInputImage, TOutputImage >
{
public:
  typedef ZeroFluxNeumannBoundaryCondition                    Self;
  typedef ImageBoundaryCondition< TInputImage, TOutputImage > Superclass;

  typedef typename Superclass::PixelType        PixelType;
  typedef typename Superclass::PixelPointerType PixelPointerType;
  typedef typename Superclass::OutputPixelType  OutputPixelType;
  typedef typename Superclass::RegionType       RegionType;
  typedef typename Superclass::IndexType        IndexType;
  typedef typename Superclass::SizeType         SizeType;
  typedef typename Superclass::OffsetType       OffsetType;
  typedef typename Superclass::NeighborhoodType NeighborhoodType;

  typedef typename Superclass::NeighborhoodAccessorFunctorType
  NeighborhoodAccessorFunctorType;

  itkStaticConstMacro(ImageDimension, unsigned int, Superclass::ImageDimension);

  ZeroFluxNeumannBoundaryCondition() {}

  virtual const char * GetNameOfClass() const
  {
    return "itkZeroFluxNeumannBoundaryCondition";
  }

  virtual OutputPixelType operator()(const OffsetType & point_index,
                                     const OffsetType & boundary_offset,
                                     const NeighborhoodType *data) const;

  virtual OutputPixelType operator()(
    const OffsetType & point_index,
    const OffsetType & boundary_offset,
    const NeighborhoodType *data,
    const NeighborhoodAccessorFunctorType & neighborhoodAccessorFunctor) const;

  virtual RegionType GetInputRequestedRegion( const RegionType & inputLargestPossibleRegion,
                                              const RegionType & outputRequestedRegion ) const;

  OutputPixelType GetPixel( const IndexType & index, const TInputImage * image ) const;

};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkZeroFluxNeumannBoundaryCondition.hxx"
#endif

/*
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkZeroFluxNeumannBoundaryCondition.hxx"
#endif
*/

#endif