#ifndef __FPA__VTK__IMAGE__PATHTOPOLYDATAFILTER__H__
#define __FPA__VTK__IMAGE__PATHTOPOLYDATAFILTER__H__

#include <itkImageBase.h>
#include <vtkPolyDataAlgorithm.h>

namespace fpa
{
  namespace VTK
  {
    namespace Image
    {
      /**
       */
      template< class _TMinimumSpanningTree >
      class PathToPolyDataFilter
        : public vtkPolyDataAlgorithm
      {
      public:
        typedef PathToPolyDataFilter  Self;
        typedef _TMinimumSpanningTree TMinimumSpanningTree;
        typedef typename TMinimumSpanningTree::TVertex TVertex;
        typedef itk::ImageBase< TVertex::Dimension >   TImage;

      public:
        vtkTypeMacro( PathToPolyDataFilter, vtkPolyDataAlgorithm );

        vtkGetMacro( Seed0, TVertex );
        vtkGetMacro( Seed1, TVertex );

        vtkSetMacro( Seed0, TVertex );
        vtkSetMacro( Seed1, TVertex );

      public:
        static Self* New( );

        const TMinimumSpanningTree* GetMinimumSpanningTree( ) const;
        const TImage* GetImage( ) const;
        void SetMinimumSpanningTree( const TMinimumSpanningTree* mst );
        void SetImage( const TImage* image );

      protected:
        PathToPolyDataFilter( );
        virtual ~PathToPolyDataFilter( );

        int RequestData(
          vtkInformation* information,
          vtkInformationVector** input,
          vtkInformationVector* output
          );
        int RequestInformation(
          vtkInformation* information,
          vtkInformationVector** input,
          vtkInformationVector* output
          );

        virtual void _PrepareOutput( vtkPolyData* out );

      private:
        // Purposely not implemented
        PathToPolyDataFilter( const Self& );
        void operator=( const Self& );

      protected:
        const TMinimumSpanningTree* m_MST;
        const TImage* m_Image;
        TVertex Seed0;
        TVertex Seed1;
      };

    } // ecapseman

  } // ecapseman

} // ecapseman

#ifndef ITK_MANUAL_INSTANTIATION
#  include <fpa/VTK/Image/PathToPolyDataFilter.hxx>
#endif // ITK_MANUAL_INSTANTIATION

#endif // __FPA__VTK__IMAGE__PATHTOPOLYDATAFILTER__H__

// eof - $RCSfile$