set< K > Node1 set< K > + keys   Node2 JetGeom::point_set _t< point_t >     Node1->Node2 Node3 Trig::BunchTrain< BunchCrossing > - m_spacing - m_front - m_back - m_gapFound + BunchTrain() + BunchTrain() + operator=() + spacing() + distance() + isInside() + train_front() + train_back() + validate() Node1->Node3 Node4 event_selector< int >   + event_selector() + ~event_selector() + in() Node1->Node4