itkDiffusionTensor3DInterpolateImageFunction.h

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/*=========================================================================
 
  Program:   Diffusion Applications
  Module:    $HeadURL$
  Language:  C++
  Date:      $Date$
  Version:   $Revision$
 
  Copyright (c) Brigham and Women's Hospital (BWH) All Rights Reserved.
 
  See License.txt or http://www.slicer.org/copyright/copyright.txt for details.
 
==========================================================================*/
#ifndef itkDiffusionTensor3DInterpolateImageFunction_h
#define itkDiffusionTensor3DInterpolateImageFunction_h
 
#include <itkObject.h>
#include "itkDiffusionTensor3D.h"
#include <itkImage.h>
#include <itkPoint.h>
#include <itkImageFunction.h>
 
namespace itk
{
template <class TData, class TCoordRep = double>
class DiffusionTensor3DInterpolateImageFunction : public ImageFunction<Image<DiffusionTensor3D<TData>, 3>, DiffusionTensor3D<TData>, TCoordRep>
{
public:
  typedef TData TensorType;
  typedef DiffusionTensor3DInterpolateImageFunction Self;
  typedef DiffusionTensor3D<TensorType> TensorDataType;
  typedef Image<TensorDataType, 3> DiffusionImageType;
  typedef typename DiffusionImageType::Pointer DiffusionImageTypePointer;
  typedef Point<double, 3> PointType;
  typedef SmartPointer<Self> Pointer;
  typedef SmartPointer<const Self> ConstPointer;
  typedef typename TensorDataType::RealValueType TensorRealType;
 
  typedef ImageFunction<Image<DiffusionTensor3D<TData>, 3>, DiffusionTensor3D<TData>, TCoordRep> Superclass;
 
  typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
  typedef typename Superclass::IndexType IndexType;

  itkTypeMacro(DiffusionTensor3DInterpolateImageFunction, ImageFunction);
 
  // ///Copied from itkInterpolateImageFunction.h

  TensorDataType Evaluate(const PointType& point) const override
  {
    ContinuousIndexType index;
 
    this->GetInputImage()->TransformPhysicalPointToContinuousIndex(point, index);
    return this->EvaluateAtContinuousIndex(index);
  }

  TensorDataType EvaluateAtContinuousIndex(const ContinuousIndexType& index) const override = 0;

 
  TensorDataType EvaluateAtIndex(const IndexType& index) const override { return this->GetInputImage()->GetPixel(index); }
 
  //  void SetDefaultPixelValue( TensorRealType defaultPixelValue ) ;
  //  itkGetMacro( DefaultPixelValue , TensorRealType ) ;
protected:
  DiffusionTensor3DInterpolateImageFunction();
  unsigned long m_LatestTime;
  //  TensorRealType m_DefaultPixelValue ;
  //  TensorDataType m_DefaultPixel ;
};
 
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkDiffusionTensor3DInterpolateImageFunction.hxx"
#endif
 
#endif