AGDDElcyl Node1 AGDDElcyl + m_dx + m_dy + m_z + AGDDElcyl() + SetRXio_RYio_Z() + CreateVolume() + CreateSolid() + dx() + dy() + z() Node2 AGDDVolume # m_name # m_material # m_theDaughters # m_theParents # m_color # m_theSolid # m_theVolume # m_isSensitive # m_vs + AGDDVolume() + ~AGDDVolume() + GetName() + SetMaterial() + CreateSolid() + CreateVolume() + AddDaughter() + GetDaughter() + NrOfDaughter() + HasParent() and 10 more... Node2->Node1