eg_resolution Node1 eg_resolution + samplings + resolTypes + eg_resolution() + ~eg_resolution() + getResolution() + getResolution() Node2 TArrayD Node2->Node1 -m_etaBins Node3 std::array< std::array < std::unique_ptr< TH1 >, resolTypes >, samplings > + elements Node3->Node1 -m_hSampling -m_hNoise -m_hConst