PHG4Particle* SvtxTruthEval::get_particle(PHG4Hit* g4hit) { PHG4TruthInfoContainer* truthinfo = findNode::getClass<PHG4TruthInfoContainer>(_topNode,"G4TruthInfo"); if (!truthinfo) { cerr << PHWHERE << " ERROR: Can't find G4TruthInfo" << endl; exit(-1); } PHG4Particle* particle = truthinfo->GetHit( g4hit->get_trkid() ); return particle; }