itkLinearInterpolateImageFunction.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkLinearInterpolateImageFunction.h,v $
  Language:  C++
  Date:      $Date: 2008-05-13 15:32:37 $
  Version:   $Revision: 1.34 $

  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 __itkLinearInterpolateImageFunction_h
#define __itkLinearInterpolateImageFunction_h

// First make sure that the configuration is available.
// This line can be removed once the optimized versions
// gets integrated into the main directories.
#include "itkConfigure.h"

#if defined( ITK_USE_OPTIMIZED_REGISTRATION_METHODS ) && defined( LINEAR_INTERPOLATOR_FIXED )
#include "itkOptLinearInterpolateImageFunction.h"
#else

#include "itkInterpolateImageFunction.h"

namespace itk
{

template <class TInputImage, class TCoordRep = double>
class ITK_EXPORT LinearInterpolateImageFunction : 
  public InterpolateImageFunction<TInputImage,TCoordRep> 
{
public:
  typedef LinearInterpolateImageFunction Self;
  typedef InterpolateImageFunction<TInputImage,TCoordRep> Superclass;
  typedef SmartPointer<Self> Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkTypeMacro(LinearInterpolateImageFunction, InterpolateImageFunction);

  itkNewMacro(Self);  

  typedef typename Superclass::OutputType OutputType;

  typedef typename Superclass::InputImageType InputImageType;

  typedef typename Superclass::RealType RealType;

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

  typedef typename Superclass::IndexType IndexType;

  typedef typename Superclass::ContinuousIndexType ContinuousIndexType;

  virtual OutputType EvaluateAtContinuousIndex( 
    const ContinuousIndexType & index ) const;

protected:
  LinearInterpolateImageFunction();
  ~LinearInterpolateImageFunction(){};
  void PrintSelf(std::ostream& os, Indent indent) const;

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

  static const unsigned long  m_Neighbors;  

};

} // end namespace itk

// Define instantiation macro for this template.
#define ITK_TEMPLATE_LinearInterpolateImageFunction(_, EXPORT, x, y) namespace itk { \
  _(2(class EXPORT LinearInterpolateImageFunction< ITK_TEMPLATE_2 x >)) \
  namespace Templates { typedef LinearInterpolateImageFunction< ITK_TEMPLATE_2 x > \
                                                  LinearInterpolateImageFunction##y; } \
  }

#if ITK_TEMPLATE_EXPLICIT
# include "Templates/itkLinearInterpolateImageFunction+-.h"
#endif

#if ITK_TEMPLATE_TXX
# include "itkLinearInterpolateImageFunction.txx"
#endif

#endif

#endif

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