TRTCalibrator::BDTRT Node1 TRTCalibrator::BDTRT Node2 std::map< std::string, TRTCalibrator::BDdetector > Node2->Node1 +t Node3 TRTCalibrator::BDdetector Node3->Node2 +elements Node4 std::map< std::string, TRTCalibrator::BDlayer > Node4->Node3 +d Node5 TRTCalibrator::BDlayer Node5->Node4 +elements Node6 std::map< std::string, TRTCalibrator::BDmodule > Node6->Node5 +l Node7 std::string Node7->Node2 +keys Node7->Node4 +keys Node7->Node6 +keys