appli/examples/example_SeedWidget.cxx

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