egammaMonitoring::RecoClusterHistograms Node1 egammaMonitoring::RecoCluster Histograms # m_rootHistSvc + RecoClusterHistograms() + initializePlots() + fill() Node2 std::string Node2->Node1 #m_folder #m_name #m_title Node4 std::map< std::string, TH3D * > Node2->Node4 +keys Node3 std::basic_string< char > Node3->Node2 Node4->Node1 +m_histo3DMap Node5 TH3D + GetBinContent() + SetBinContent() Node5->Node4 +elements