MuonGM::Rpc Node1 MuonGM::Rpc + width + length + thickness + longWidth + idiv + jdiv + y_translation + z_translation - m_component - m_nlayers + Rpc() + build() + build() + build() + print() + nGasGaps() Node2 MuonGM::DetectorElement + name + logVolName + DetectorElement() + setLogVolName() + print() + ~DetectorElement() Node2->Node1