Graphical Class Hierarchy Node0 egammaMonitoring::IHistograms Node1 egammaMonitoring::Particle Histograms Node0->Node1 Node6 egammaMonitoring::TrackHistograms Node0->Node6 Node2 egammaMonitoring::RecoElectron Histograms Node1->Node2 Node3 egammaMonitoring::RecoPhoton Histograms Node1->Node3 Node4 egammaMonitoring::TruthElectron Histograms Node1->Node4 Node5 egammaMonitoring::TruthPhoton Histograms Node1->Node5