itkDiffusionTensor3DFSAffineTransform.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 itkDiffusionTensor3DFSAffineTransform_h
#define itkDiffusionTensor3DFSAffineTransform_h
 
#include "itkDiffusionTensor3DAffineTransform.h"
#include <vnl/vnl_matrix.h>
#include <vnl/algo/vnl_real_eigensystem.h>
#include <vnl/vnl_real.h>
 
namespace itk
{
template <class TData>
class DiffusionTensor3DFSAffineTransform : public DiffusionTensor3DAffineTransform<TData>
{
public:
  typedef TData DataType;
  typedef DiffusionTensor3DFSAffineTransform Self;
  typedef DiffusionTensor3DAffineTransform<DataType> Superclass;
  typedef typename Superclass::MatrixTransformType MatrixTransformType;
  typedef typename Superclass::InternalMatrixTransformType InternalMatrixTransformType;
  typedef SmartPointer<Self> Pointer;
  typedef SmartPointer<const Self> ConstPointer;
 
  itkNewMacro(Self);

  itkTypeMacro(DiffusionTensor3DFSAffineTransform, DiffusionTensor3DAffineTransform);
 
protected:
  void PreCompute() override;
 
private:
  MatrixTransformType ComputeMatrixSquareRoot(MatrixTransformType matrix);
 
  MatrixTransformType ComputeRotationMatrixFromTransformationMatrix();
};
 
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkDiffusionTensor3DFSAffineTransform.txx"
#endif
 
#endif