std::set<PHG4Particle*> SvtxVertexEval::all_truth_particles(SvtxVertex* vertex) {
if ((_do_cache) && (_cache_all_truth_particles.find(vertex) !=
_cache_all_truth_particles.end())) {
return _cache_all_truth_particles[vertex];
}
SvtxTrackMap* trackmap = findNode::getClass<SvtxTrackMap>(_topNode,"SvtxTrackMap");
if (!trackmap) {
cerr << PHWHERE << " ERROR: Can't find SvtxTrackMap" << endl;
exit(-1);
}
std::set<PHG4Particle*> all_particles;
// loop over all tracks on vertex
for (SvtxVertex::TrackIter iter = vertex->begin_tracks();
iter != vertex->end_tracks();
++iter) {
SvtxTrack* track = trackmap->get(*iter);
all_particles.insert(_trackeval.max_truth_particle_by_nclusters(track));
}
if (_do_cache) _cache_all_truth_particles.insert(make_pair(vertex,all_particles));
return all_particles;
}
// overlap calculations
unsigned int SvtxVertexEval::get_ntracks_contribution(SvtxVertex* vertex, PHG4VtxPoint* truthpoint) {
if ((_do_cache) && (_cache_get_ntracks_contribution.find(make_pair(vertex,truthpoint)) !=
_cache_get_ntracks_contribution.end())) {
return _cache_get_ntracks_contribution[make_pair(vertex,truthpoint)];
}
SvtxTrackMap* trackmap = findNode::getClass<SvtxTrackMap>(_topNode,"SvtxTrackMap");
if (!trackmap) {
cerr << PHWHERE << " ERROR: Can't find SvtxTrackMap" << endl;
exit(-1);
}
PHG4TruthInfoContainer* truthinfo = findNode::getClass<PHG4TruthInfoContainer>(_topNode,"G4TruthInfo");
if (!truthinfo) {
cerr << PHWHERE << " ERROR: Can't find G4TruthInfo" << endl;
exit(-1);
}
unsigned int ntracks = 0;
for (SvtxVertex::TrackIter iter = vertex->begin_tracks();
iter != vertex->end_tracks();
++iter) {
SvtxTrack* track = trackmap->get(*iter);
PHG4Particle* particle = _trackeval.max_truth_particle_by_nclusters(track);
// only consider primary particles
PHG4TruthInfoContainer::Map primarymap = truthinfo->GetPrimaryMap();
if (primarymap.find(particle->get_track_id()) == primarymap.end()) continue;
PHG4VtxPoint* candidate = truthinfo->GetPrimaryVtx(particle->get_vtx_id());
if (candidate->get_id() == truthpoint->get_id()) ++ntracks;
}
if (_do_cache) _cache_get_ntracks_contribution.insert(make_pair(make_pair(vertex,truthpoint),ntracks));
return ntracks;
}
