libs/fpa/Image/Dijkstra.h

   1 // =========================================================================
   2 // @author Leonardo Florez Valencia
   3 // @email florez-l@javeriana.edu.co
   4 // =========================================================================
   5
   6 #ifndef __fpa__Image__Dijkstra__h__
   7 #define __fpa__Image__Dijkstra__h__
   8
   9 #include <fpa/Base/Dijkstra.h>
  10 #include <fpa/Base/SeedsInterface.h>
  11 #include <fpa/Image/MarksInterface.h>
  12 #include <fpa/Image/Filter.h>
  13 #include <fpa/Image/MinimumSpanningTree.h>
  14 #include <fpa/Image/Functors/VertexParentBase.h>
  15
  16 namespace fpa
  17 {
  18   namespace Image
  19   {
  20     /**
  21      */
  22     template< class _TInputImage, class _TOutputImage >
  23     class Dijkstra
  24       : public fpa::Base::Dijkstra< fpa::Image::Filter< _TInputImage, _TOutputImage >, fpa::Image::MarksInterface< _TInputImage::ImageDimension >, fpa::Base::SeedsInterface< typename _TInputImage::IndexType, typename _TInputImage::IndexType::LexicographicCompare >, fpa::Image::MinimumSpanningTree< _TInputImage::ImageDimension > >
  25     {
  26     public:
  27       // Interfaces
  28       typedef fpa::Image::Filter< _TInputImage, _TOutputImage > TFilter;
  29       typedef fpa::Image::MarksInterface< _TInputImage::ImageDimension > TMarksInterface;
  30       typedef fpa::Base::SeedsInterface< typename _TInputImage::IndexType, typename _TInputImage::IndexType::LexicographicCompare > TSeedsInterface;
  31       typedef fpa::Image::MinimumSpanningTree< _TInputImage::ImageDimension > TMST;
  32
  33       // Smart pointers
  34       typedef Dijkstra Self;
  35       typedef fpa::Base::Dijkstra< TFilter, TMarksInterface, TSeedsInterface, TMST > Superclass;
  36       typedef itk::SmartPointer< Self > Pointer;
  37       typedef itk::SmartPointer< const Self > ConstPointer;
  38
  39       typedef typename TFilter::TInputImage TInputImage;
  40       typedef typename TFilter::TOutputValue TOutputValue;
  41       typedef typename TFilter::TVertex TVertex;
  42
  43     public:
  44       itkNewMacro( Self );
  45       itkTypeMacro( fpa::Image::Dijkstra, fpa::Base::Dijkstra );
  46
  47     protected:
  48       Dijkstra( ) : Superclass( ) { }
  49       virtual ~Dijkstra( )        { }
  50
  51       virtual void _ConfigureOutputs( const TOutputValue& init_value ) override
  52         {
  53           this->Superclass::_ConfigureOutputs( init_value );
  54
  55           typename TVertex::OffsetType o;
  56           o.Fill( 0 );
  57           const TInputImage* input = this->GetInput( );
  58           TMST* mst = this->GetMinimumSpanningTree( );
  59           mst->CopyInformation( input );
  60           mst->SetBufferedRegion( input->GetRequestedRegion( ) );
  61           mst->Allocate( );
  62           mst->FillBuffer( o );
  63         }
  64
  65       virtual void GenerateData( ) override
  66         {
  67           // Configure functors with input image
  68           typedef typename TFilter::TInputImage  _TInputIage;
  69           typedef typename TFilter::TOutputValue _TOutputValue;
  70           typedef fpa::Image::Functors::VertexParentBase< _TInputImage, _TOutputValue > _TVFunc;
  71           _TVFunc* vfunc =
  72             dynamic_cast< _TVFunc* >( this->m_VertexFunctor.GetPointer( ) );
  73           if( vfunc != NULL )
  74             vfunc->SetImage( this->GetInput( ) );
  75
  76           // Ok, continue
  77           this->Superclass::GenerateData( );
  78         }
  79
  80     private:
  81       Dijkstra( const Self& other );
  82       Self& operator=( const Self& other );
  83     };
  84
  85   } // ecapseman
  86
  87 } // ecapseman
  88
  89 #endif // __fpa__Image__Dijkstra__h__
  90
  91 // eof - $RCSfile$