appli/examples/example_SeedWidget.cxx

   1 #include <cstdlib>
   2 #include <iostream>
   3 #include <string>
   4
   5 #include <vtkImageActorPointPlacer.h>
   6 #include <vtkPointHandleRepresentation3D.h>
   7 #include <vtkProperty.h>
   8 #include <vtkRenderer.h>
   9 #include <vtkRenderWindow.h>
  10 #include <vtkRenderWindowInteractor.h>
  11 #include <vtkSeedRepresentation.h>
  12
  13 #include <cpPlugins/Interface/Interface.h>
  14 #include <cpPlugins/Interface/ProcessObject.h>
  15 #include <cpPlugins/Interface/Image.h>
  16
  17 #include <cpExtensions/Visualization/ImageSliceActors.h>
  18 #include <cpExtensions/Interaction/SeedWidget.h>
  19
  20 // -------------------------------------------------------------------------
  21 typedef cpPlugins::Interface::Interface     TInterface;
  22 typedef cpPlugins::Interface::ProcessObject TProcessObject;
  23 typedef cpPlugins::Interface::DataObject    TDataObject;
  24 typedef cpPlugins::Interface::Image         TImage;
  25 typedef cpPlugins::Interface::Parameters    TParameters;
  26 typedef TInterface::TClasses                TClasses;
  27
  28 typedef cpExtensions::Visualization::ImageSliceActors TSliceActors;
  29 typedef cpExtensions::Interaction::SeedWidget         TSeedWidget;
  30
  31 // -------------------------------------------------------------------------
  32 int main( int argc, char* argv[] )
  33 {
  34   if( argc < 3 )
  35   {
  36     std::cerr
  37       << "Usage: " << argv[ 0 ]
  38       << " plugins_file input_image"
  39       << std::endl;
  40     return( 1 );
  41
  42   } // fi
  43
  44   // Create interface
  45   TInterface plugins;
  46   if( !plugins.Load( argv[ 1 ] ) )
  47   {
  48     std::cerr << "Failed to load plugins." << std::endl;
  49     return( 1 );
  50
  51   } // fi
  52
  53   // Create objects
  54   TProcessObject::Pointer reader;
  55   reader = plugins.CreateProcessObject( "cpPlugins::IO::ImageReader" );
  56   if( reader.IsNull( ) )
  57   {
  58     std::cerr
  59       << "No suitable reader found in plugins." << std::endl
  60       << "Reader: " << reader.GetPointer( ) << std::endl
  61       << std::endl;
  62     return( 1 );
  63
  64   } // fi
  65
  66   // Configure reader
  67   TParameters* reader_params = reader->GetParameters( );
  68   for( int i = 2; i < argc; ++i )
  69     reader_params->AddToStringList( "FileNames", argv[ i ] );
  70
  71   // Execute pipeline
  72   std::string err = reader->Update( );
  73   if( err != "" )
  74   {
  75     std::cerr << "ERROR: " << err << std::endl;
  76     return( 1 );
  77
  78   } // fi
  79   TImage* image = reader->GetOutput< TImage >( "Output" );
  80
  81   // Configure visualization objects
  82   vtkSmartPointer< vtkRenderer > renderer =
  83     vtkSmartPointer< vtkRenderer >::New( );
  84   renderer->SetBackground( 0.1, 0.3, 0.5 );
  85
  86   vtkSmartPointer< vtkRenderWindow > window =
  87     vtkSmartPointer< vtkRenderWindow >::New( );
  88   window->AddRenderer( renderer );
  89   window->SetSize( 600, 600 );
  90
  91   // Set up the interaction
  92   vtkSmartPointer< vtkRenderWindowInteractor > interactor =
  93     vtkSmartPointer< vtkRenderWindowInteractor >::New( );
  94   window->SetInteractor( interactor );
  95
  96   // Create slice actors
  97   vtkSmartPointer< TSliceActors > image_actors =
  98     vtkSmartPointer< TSliceActors >::New( );
  99   image_actors->AddInputData( image->GetVTK< vtkImageData >( ), 2 );
 100   image_actors->PushActorsInto( window );
 101
 102   vtkSmartPointer< vtkImageActorPointPlacer > placer =
 103     vtkSmartPointer< vtkImageActorPointPlacer >::New( );
 104   placer->SetImageActor( image_actors->GetImageActor( 0 ) );
 105
 106   // Create the widget and its representation
 107   vtkSmartPointer< vtkPointHandleRepresentation3D > handle =
 108     vtkSmartPointer< vtkPointHandleRepresentation3D >::New( );
 109   handle->GetProperty( )->SetColor( 1, 0, 0 );
 110   handle->SetPointPlacer( placer );
 111   vtkSmartPointer< vtkSeedRepresentation > rep =
 112     vtkSmartPointer< vtkSeedRepresentation >::New( );
 113   rep->SetHandleRepresentation( handle );
 114
 115   vtkSmartPointer< TSeedWidget > widget =
 116     vtkSmartPointer< TSeedWidget >::New( );
 117   widget->SetInteractor( interactor );
 118   widget->SetRepresentation( rep );
 119
 120   // Begin interaction
 121   renderer->ResetCamera( );
 122   window->Render( );
 123   widget->On( );
 124   interactor->Start( );
 125
 126   return( 0 );
 127 }
 128
 129 // eof - $RCSfile$