itkBSplineInterpolationSecondOrderDerivativeWeightFunction.h

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 *  Copyright UMC Utrecht and contributors
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
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#ifndef __itkBSplineInterpolationSecondOrderDerivativeWeightFunction_h
#define __itkBSplineInterpolationSecondOrderDerivativeWeightFunction_h
 
#include "itkBSplineInterpolationWeightFunctionBase.h"
#include "vnl/vnl_vector_fixed.h"
 
namespace itk
{
 
template< class TCoordRep    = float,
unsigned int VSpaceDimension = 2,
unsigned int VSplineOrder    = 3 >
class BSplineInterpolationSecondOrderDerivativeWeightFunction :
  public BSplineInterpolationWeightFunctionBase<
  TCoordRep, VSpaceDimension, VSplineOrder >
{
public:
 
  typedef BSplineInterpolationSecondOrderDerivativeWeightFunction Self;
  typedef BSplineInterpolationWeightFunctionBase<
    TCoordRep, VSpaceDimension, VSplineOrder >      Superclass;
  typedef SmartPointer< Self >       Pointer;
  typedef SmartPointer< const Self > ConstPointer;
 
  itkNewMacro( Self );
 
  itkTypeMacro( BSplineInterpolationSecondOrderDerivativeWeightFunction,
    BSplineInterpolationWeightFunctionBase );
 
  itkStaticConstMacro( SpaceDimension, unsigned int, VSpaceDimension );
 
  itkStaticConstMacro( SplineOrder, unsigned int, VSplineOrder );
 
  typedef typename Superclass::WeightsType         WeightsType;
  typedef typename Superclass::IndexType           IndexType;
  typedef typename Superclass::SizeType            SizeType;
  typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
 
  virtual void SetDerivativeDirections( unsigned int dir0, unsigned int dir1 );
 
protected:
 
  BSplineInterpolationSecondOrderDerivativeWeightFunction();
  ~BSplineInterpolationSecondOrderDerivativeWeightFunction() override {}
 
  typedef typename Superclass::KernelType           KernelType;
  typedef typename Superclass::DerivativeKernelType DerivativeKernelType;
  typedef typename Superclass
    ::SecondOrderDerivativeKernelType SecondOrderDerivativeKernelType;
  typedef typename Superclass::TableType       TableType;
  typedef typename Superclass::OneDWeightsType OneDWeightsType;
 
  void Compute1DWeights(
    const ContinuousIndexType & index,
    const IndexType & startIndex,
    OneDWeightsType & weights1D ) const override;
 
  void PrintSelf( std::ostream & os, Indent indent ) const override;
 
private:
 
  BSplineInterpolationSecondOrderDerivativeWeightFunction( const Self & ); // purposely not implemented
  void operator=( const Self & );                                          // purposely not implemented
 
  vnl_vector_fixed< double, 2 > m_DerivativeDirections;
  bool                          m_EqualDerivativeDirections;
 
};
 
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkBSplineInterpolationSecondOrderDerivativeWeightFunction.hxx"
#endif
 
#endif