MuonGMR4::TgcReadoutGeomTool::wTgcTable Node1 MuonGMR4::TgcReadoutGeom Tool::wTgcTable + wirePitch + gasGap Node2 std::vector< unsigned int > + elements Node2->Node1 +wireGangs Node3 std::vector< double > + elements Node3->Node1 +topStripPos +bottomStripPos