SPLayer Node1 SPLayer - m_dettype - m_bec - m_layer - m_side - m_nmod - m_nhit + SPLayer() + incnmod() + incnhit() + dettype() + bec() + layer() + side() + nmod() + nhit() + hptr() + name() Node2 std::vector< TH1 * > Node2->Node1 -m_histlist Node3 TH1 Node3->Node2 +elements Node4 std::string Node4->Node1 -m_name Node5 std::basic_string< char > Node5->Node4