TRTCalibrator::BDboard Node1 TRTCalibrator::BDboard Node2 std::map< std::string, TRTCalibrator::BDchip > Node2->Node1 +b Node3 TRTCalibrator::BDchip Node3->Node2 +elements Node4 std::map< std::string, TRTCalibrator::BDstraw > Node4->Node3 +c Node5 std::string Node5->Node2 +keys Node5->Node4 +keys Node8 std::map< std::string, TRTCalibrator::BDzero > Node5->Node8 +keys Node6 std::basic_string< char > Node6->Node5 Node7 TRTCalibrator::BDstraw Node7->Node4 +elements Node8->Node7 +s