plugins/Plugins/ImageDijkstra.cxx

   1 #include <Plugins/ImageDijkstra.h>
   2 #include <cpInstances/Image.h>
   3 #include <cpInstances/Image_Demanglers.h>
   4
   5 #include <fpa/Image/Dijkstra.h>
   6 #include <vtkPolyData.h>
   7
   8 // -------------------------------------------------------------------------
   9 fpaPlugins::ImageDijkstra::
  10 ImageDijkstra( )
  11   : Superclass( )
  12 {
  13   typedef cpPlugins::BaseObjects::DataObject _TData;
  14   typedef cpInstances::Image      _TMST;
  15
  16   this->_ConfigureInput< _TData >( "Cost", false, false );
  17   this->_ConfigureInput< _TData >( "CostConversion", false, false );
  18   this->_ConfigureOutput< _TMST >( "MST" );
  19
  20   std::vector< std::string > choices;
  21   choices.push_back( "float" );
  22   choices.push_back( "double" );
  23   this->m_Parameters.ConfigureAsChoices( "ResultType", choices );
  24   this->m_Parameters.SetSelectedChoice( "ResultType", "float" );
  25 }
  26
  27 // -------------------------------------------------------------------------
  28 fpaPlugins::ImageDijkstra::
  29 ~ImageDijkstra( )
  30 {
  31 }
  32
  33 // -------------------------------------------------------------------------
  34 void fpaPlugins::ImageDijkstra::
  35 _GenerateData( )
  36 {
  37   auto o = this->GetInputData( "Input" );
  38   cpPlugins_Demangle_Image_ScalarPixels_AllDims_1( o, _GD0 )
  39     this->_Error( "Invalid input image." );
  40 }
  41
  42 // -------------------------------------------------------------------------
  43 template< class _TImage >
  44 void fpaPlugins::ImageDijkstra::
  45 _GD0( _TImage* image )
  46 {
  47   typedef itk::Image< float, _TImage::ImageDimension >  _TFloat;
  48   typedef itk::Image< double, _TImage::ImageDimension > _TDouble;
  49
  50   auto rtype = this->m_Parameters.GetSelectedChoice( "ResultType" );
  51   if     ( rtype == "float"  ) this->_GD1< _TImage, _TFloat >( image );
  52   else if( rtype == "double" ) this->_GD1< _TImage, _TDouble >( image );
  53 }
  54
  55 // -------------------------------------------------------------------------
  56 template< class _TInputImage, class _TOutputImage >
  57 void fpaPlugins::ImageDijkstra::
  58 _GD1( _TInputImage* image )
  59 {
  60   typedef fpa::Image::Dijkstra< _TInputImage, _TOutputImage > _TFilter;
  61   typedef typename _TFilter::TCostConversionFunction _TCostConversion;
  62   typedef typename _TFilter::TCostFunction           _TCost;
  63   typedef typename _TFilter::TNeighborhoodFunction   _TNeighborhood;
  64
  65   // Get functors
  66   auto neig = this->GetInputData< _TNeighborhood >( "Neighborhood" );
  67   auto cost = this->GetInputData< _TCost >( "Cost" );
  68   auto conv = this->GetInputData< _TCostConversion >( "CostConversion" );
  69
  70   // Configure filter
  71   auto filter = this->_CreateITK< _TFilter >( );
  72   filter->SetInput( image );
  73   if( neig != NULL )
  74     filter->SetNeighborhoodFunction( neig );
  75   if( cost != NULL )
  76     filter->SetCostFunction( cost );
  77   if( conv != NULL )
  78     filter->SetCostConversionFunction( conv );
  79   filter->SetStopAtOneFront( this->m_Parameters.GetBool( "StopAtOneFront" ) );
  80
  81   // Assign seeds
  82   auto seeds = this->GetInputData< vtkPolyData >( "Seeds" );
  83   if( seeds != NULL )
  84   {
  85     typename _TInputImage::PointType pnt;
  86     typename _TInputImage::IndexType idx;
  87     unsigned int dim =
  88       ( _TInputImage::ImageDimension < 3 )? _TInputImage::ImageDimension: 3;
  89
  90     for( int i = 0; i < seeds->GetNumberOfPoints( ); ++i )
  91     {
  92       double buf[ 3 ];
  93       seeds->GetPoint( i, buf );
  94       pnt.Fill( 0 );
  95       for( unsigned int d = 0; d < dim; ++d )
  96         pnt[ d ] = buf[ d ];
  97
  98       if( image->TransformPhysicalPointToIndex( pnt, idx ) )
  99         filter->AddSeed( idx, 0 );
 100
 101     } // rof
 102
 103   } // fi
 104
 105   // Assign outputs
 106   filter->Update( );
 107   this->GetOutput( "Output" )->SetITK( filter->GetOutput( ) );
 108   this->GetOutput( "MST" )->SetITK( filter->GetMinimumSpanningTree( ) );
 109 }
 110
 111 // eof - $RCSfile$