itkSpeedFunctionPathInformation.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkSpeedFunctionPathInformation.h,v $
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

  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 itkSpeedFunctionPathInformation_h
#define itkSpeedFunctionPathInformation_h

#include "itkLightObject.h"
#include "itkObjectFactory.h"

#include <vector>

namespace itk
{

template <typename TPoint>
class SpeedFunctionPathInformation :
  public LightObject
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(SpeedFunctionPathInformation);

  using Self = SpeedFunctionPathInformation;
  using Superclass = LightObject;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  
  itkTypeMacro(SpeedFunctionPathInformation, LightObject);

  itkNewMacro(Self);

  using PointType = TPoint;
  using PointsContainerType = std::vector< PointType >;

  void ClearInfo();

  void SetStartPoint( const PointType & start );

  void SetEndPoint( const PointType & end );

  void AddWayPoint( const PointType & way );


  void SetStartPoint( const PointsContainerType & start );

  void SetEndPoint( const PointsContainerType & end );

  void AddWayPoint( const PointsContainerType & way );

  // methods for modifying path seeds - needed when using
  // an extended seed.
  void SetCurrent( const PointsContainerType & newcurrent );
  void SetPrevious( const PointsContainerType & newprevious );
  void SetNext( const PointsContainerType & newnext );
  
  void SetCurrent( const PointType & current );
  void SetPrevious( const PointType & newprevious );
  void SetNext( const PointType & newnext );

  void Advance();

  unsigned int GetNumberOfPoints( ) const;

  const PointsContainerType & GetStartPoint( ) const;

  const PointsContainerType & GetEndPoint( ) const;

  const PointsContainerType & GetWayPoint( SizeValueType i ) const;

  bool HasNextFront( ) const;

  const PointsContainerType & GetCurrentFrontAndAdvance( );

  const PointsContainerType & PeekCurrentFront( ) const;

  const PointsContainerType & PeekNextFront( ) const;

  const PointsContainerType & PeekPreviousFront( ) const;
  

protected:
  SpeedFunctionPathInformation( );
  ~SpeedFunctionPathInformation( ) override;
  void PrintSelf( std::ostream& os, Indent indent ) const override;

  std::vector< PointsContainerType > m_Information;
  SizeValueType                      m_Front;


  PointsContainerType PtoPVec(const PointType & P)
  {
    PointsContainerType V(1);
    V[0]=P;
    return(V);
  }
};


} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSpeedFunctionPathInformation.hxx"
#endif

#endif