MuonGM::MultiLayer Node1 MuonGM::MultiLayer + nrOfLayers + nrOfTubes + tubePitch + width + length + thickness + mdtthickness + longWidth + nrOfSteps + yy and 10 more... + MultiLayer() + build() + print() Node2 MuonGM::DetectorElement + name + logVolName + DetectorElement() + setLogVolName() + print() + ~DetectorElement() Node2->Node1