itkFourierSeriesPath.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkFourierSeriesPath.h,v $
  Language:  C++
  Date:      $Date: 2007-01-30 20:56:07 $
  Version:   $Revision: 1.6 $

  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 __itkFourierSeriesPath_h
#define __itkFourierSeriesPath_h

#include "itkParametricPath.h"
#include "itkVectorContainer.h"
#include "itkContinuousIndex.h"
#include "itkIndex.h"
#include "itkOffset.h"
#include "itkVector.h"

namespace itk
{


template <unsigned int VDimension>
class ITK_EXPORT FourierSeriesPath : public
ParametricPath< VDimension >
{
public:
  typedef FourierSeriesPath           Self;
  typedef ParametricPath<VDimension>  Superclass;
  typedef SmartPointer<Self>          Pointer;
  typedef SmartPointer<const Self>    ConstPointer;

  itkTypeMacro(FourierSeriesPath, ParametricPath);

  typedef typename Superclass::InputType  InputType;

  typedef typename Superclass::OutputType OutputType;

  
  typedef ContinuousIndex<double,VDimension>    ContinuousIndexType; 
  typedef Index<  VDimension >                  IndexType;           
  typedef Offset< VDimension >                  OffsetType;          
  typedef Vector<double,VDimension>             VectorType;          
  typedef VectorContainer<unsigned, VectorType> CoefficientsType;
  typedef typename CoefficientsType::Pointer    CoefficientsPointer;


  virtual OutputType Evaluate( const InputType & input ) const;

  virtual VectorType EvaluateDerivative(const InputType & input) const;

  void AddHarmonic( const VectorType & CosCoefficients,
                    const VectorType & SinCoefficients );

  void Clear()
    {
    m_CosCoefficients->Initialize();
    m_SinCoefficients->Initialize();
    this->Modified();
    }

  itkNewMacro( Self );

  virtual void Initialize(void)
    {
    this->Clear();
    }

protected:
  FourierSeriesPath();
  ~FourierSeriesPath(){}
  void PrintSelf(std::ostream& os, Indent indent) const;
  
private:
  FourierSeriesPath(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  
  CoefficientsPointer m_CosCoefficients;
  CoefficientsPointer m_SinCoefficients;
};

} // end namespace itk

// Define instantiation macro for this template.
#define ITK_TEMPLATE_FourierSeriesPath(_, EXPORT, x, y) namespace itk { \
  _(1(class EXPORT FourierSeriesPath< ITK_TEMPLATE_1 x >)) \
  namespace Templates { typedef FourierSeriesPath< ITK_TEMPLATE_1 x > \
                                     FourierSeriesPath##y; } \
  }

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

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

#endif

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