itkVectorLinearInterpolateNearestNeighborExtrapolateImageFunction.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
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  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.
 *
 *=========================================================================*/
#ifndef __itkVectorLinearInterpolateNearestNeighborExtrapolateImageFunction_h
#define __itkVectorLinearInterpolateNearestNeighborExtrapolateImageFunction_h

#include "itkVectorInterpolateImageFunction.h"

namespace itk
{
template< class TInputImage, class TCoordRep = float >
class ITK_EXPORT VectorLinearInterpolateNearestNeighborExtrapolateImageFunction:
  public VectorInterpolateImageFunction< TInputImage, TCoordRep >
{
public:

  typedef VectorLinearInterpolateNearestNeighborExtrapolateImageFunction Self;
  typedef VectorInterpolateImageFunction< TInputImage, TCoordRep >       Superclass;
  typedef SmartPointer< Self >                                           Pointer;
  typedef SmartPointer< const Self >                                     ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(VectorLinearInterpolateNearestNeighborExtrapolateImageFunction,
               VectorInterpolateImageFunction);

  typedef typename Superclass::InputImageType InputImageType;
  typedef typename Superclass::PixelType      PixelType;
  typedef typename Superclass::ValueType      ValueType;
  typedef typename Superclass::RealType       RealType;

  typedef typename Superclass::PointType PointType;

  //itkStaticConstMacro(Dimension, unsigned int,
  //                    Superclass::Dimension);

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

  typedef typename Superclass::IndexType      IndexType;
  typedef typename Superclass::IndexValueType IndexValueType;

  typedef typename Superclass::ContinuousIndexType ContinuousIndexType;

  typedef typename Superclass::OutputType OutputType;

  virtual bool IsInsideBuffer(const IndexType &) const
  {
    return true;
  }

  virtual bool IsInsideBuffer(const PointType &) const
  {
    return true;
  }

  virtual bool IsInsideBuffer(const ContinuousIndexType &) const
  {
    return true;
  }

  virtual OutputType EvaluateAtContinuousIndex(
    const ContinuousIndexType & index) const;

  virtual OutputType EvaluateAtIndex(const IndexType & index) const;

protected:
  VectorLinearInterpolateNearestNeighborExtrapolateImageFunction();
  virtual ~VectorLinearInterpolateNearestNeighborExtrapolateImageFunction() {}

  virtual void PrintSelf(std::ostream & os, Indent indent) const;

private:
  VectorLinearInterpolateNearestNeighborExtrapolateImageFunction(const Self &); //purposely
                                                                                // not
                                                                                // implemented
  void operator=(const Self &);                                                 //purposely
                                                                                // not
                                                                                // implemented

  static const unsigned int m_Neighbors;
};
} // end namespace itk

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

#endif