75 G4VVisManager* pVVisManager = G4VVisManager::GetConcreteInstance();
79 circle.SetScreenSize(2.);
80 circle.SetFillStyle(G4Circle::filled);
81 G4Colour colour(1.,0.,0.);
82 G4VisAttributes attribs(colour);
83 circle.SetVisAttributes(attribs);
84 pVVisManager->Draw(circle);