plugins/fpa/ExtractPathFromMinimumSpanningTree.cxx

   1 #include "ExtractPathFromMinimumSpanningTree.h"
   2 #include <cpPlugins/Path.h>
   3 #include <cpExtensions/DataStructures/ImageIndexesContainer.h>
   4 #include <fpa_Instances/Backtracking.h>
   5
   6 // -------------------------------------------------------------------------
   7 fpaPlugins::ExtractPathFromMinimumSpanningTree::
   8 ExtractPathFromMinimumSpanningTree( )
   9   : Superclass( )
  10 {
  11   this->_AddInput( "MST" );
  12   this->_AddInput( "Seeds" );
  13   this->_AddOutput< cpPlugins::Path >( "Output" );
  14
  15   this->m_Parameters.ConfigureAsUint( "Vertex0" );
  16   this->m_Parameters.ConfigureAsUint( "Vertex1" );
  17   this->m_Parameters.SetUint( "Vertex0", 0 );
  18   this->m_Parameters.SetUint( "Vertex1", 1 );
  19 }
  20
  21 // -------------------------------------------------------------------------
  22 fpaPlugins::ExtractPathFromMinimumSpanningTree::
  23 ~ExtractPathFromMinimumSpanningTree( )
  24 {
  25 }
  26
  27 // -------------------------------------------------------------------------
  28 std::string fpaPlugins::ExtractPathFromMinimumSpanningTree::
  29 _GenerateData( )
  30 {
  31   typedef fpa::Image::MinimumSpanningTree< 2 > _2DMST;
  32   typedef fpa::Image::MinimumSpanningTree< 3 > _3DMST;
  33
  34   auto mst = this->GetInputData( "MST" )->GetITK< itk::DataObject >( );
  35   auto mst2 = dynamic_cast< _2DMST* >( mst );
  36   auto mst3 = dynamic_cast< _3DMST* >( mst );
  37   std::string   r = this->_GD0( mst2 );
  38   if( r != "" ) r = this->_GD0( mst3 );
  39   return( r );
  40 }
  41
  42 // -------------------------------------------------------------------------
  43 template< class _TMST >
  44 std::string fpaPlugins::ExtractPathFromMinimumSpanningTree::
  45 _GD0( _TMST* mst )
  46 {
  47   typedef fpa::Base::ExtractPathFromMinimumSpanningTree< _TMST > _TFilter;
  48   typedef
  49     cpExtensions::DataStructures::ImageIndexesContainer< _TMST::Dimension >
  50     _TVertices;
  51   if( mst == NULL )
  52     return(
  53       "fpaPlugins::ExtractPathFromMinimumSpanningTree: No valid input tree."
  54       );
  55   auto vertices = this->GetInputData( "Seeds" )->GetITK< _TVertices >( );
  56   if( vertices == NULL )
  57     return(
  58       "fpaPlugins::ExtractPathFromMinimumSpanningTree: No valid vertices."
  59       );
  60   if( vertices->Get( ).size( ) < 2 )
  61     return(
  62       "fpaPlugins::ExtractPathFromMinimumSpanningTree: Not enough vertices."
  63       );
  64   auto v0 = vertices->Get( )[ this->m_Parameters.GetUint( "Vertex0" ) ];
  65   auto v1 = vertices->Get( )[ this->m_Parameters.GetUint( "Vertex1" ) ];
  66
  67   // Create filter and connect input
  68   _TFilter* filter = this->_CreateITK< _TFilter >( );
  69   filter->SetInput( mst );
  70   filter->SetVertex0( v0 );
  71   filter->SetVertex1( v1 );
  72   filter->Update( );
  73
  74   // Connect output and finish
  75   this->GetOutputData( "Output" )->SetITK( filter->GetOutput( ) );
  76   return( "" );
  77 }
  78
  79 // eof - $RCSfile$