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< typename TInputImage, typename TCoordRep = float >
class ITK_TEMPLATE_EXPORT VectorLinearInterpolateNearestNeighborExtrapolateImageFunction:
  public VectorInterpolateImageFunction< TInputImage, TCoordRep >
{
public:

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

  itkNewMacro(Self);

  itkTypeMacro(VectorLinearInterpolateNearestNeighborExtrapolateImageFunction,
               VectorInterpolateImageFunction);

  using InputImageType = typename Superclass::InputImageType;
  using PixelType = typename Superclass::PixelType;
  using ValueType = typename Superclass::ValueType;
  using RealType = typename Superclass::RealType;

  using PointType = typename Superclass::PointType;

  //static constexpr unsigned int Dimension = //                    Superclass::Dimension;

  static constexpr unsigned int ImageDimension = Superclass::ImageDimension;

  using IndexType = typename Superclass::IndexType;
  using IndexValueType = typename Superclass::IndexValueType;

  using ContinuousIndexType = typename Superclass::ContinuousIndexType;

  using OutputType = typename Superclass::OutputType;

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

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

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

  OutputType EvaluateAtContinuousIndex(
    const ContinuousIndexType & index) const override;

  OutputType EvaluateAtIndex(const IndexType & index) const override;

protected:
  VectorLinearInterpolateNearestNeighborExtrapolateImageFunction() = default;
  ~VectorLinearInterpolateNearestNeighborExtrapolateImageFunction() override = default;

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

private:
  VectorLinearInterpolateNearestNeighborExtrapolateImageFunction(const Self &) = delete;
  void operator=(const Self &) = delete;

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

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

#endif