MuonReSeeder Class Reference

Inheritance diagram for MuonReSeeder:

Public Member Functions
	MuonReSeeder (const edm::ParameterSet &iConfig)
void	produce (edm::Event &iEvent, const edm::EventSetup &iSetup) override
	~MuonReSeeder () override
Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default
bool	hasAbilityToProduceInBeginLumis () const final
bool	hasAbilityToProduceInBeginRuns () const final
bool	hasAbilityToProduceInEndLumis () const final
bool	hasAbilityToProduceInEndRuns () const final

Private Attributes
bool	debug_
	Dump deug information. More...
bool	insideOut_
	Do inside-out. More...
int	layersToKeep_
	How many hits to keep from the muon trajectory. More...
TrackTransformer	refitter_
	Track Transformer. More...
StringCutObjectSelector< reco::Muon >	selector_
	Muon selection. More...
edm::EDGetTokenT< edm::View< reco::Muon > >	src_
	Labels for input collections. More...

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
typedef CacheContexts< T... >	CacheTypes
typedef CacheTypes::GlobalCache	GlobalCache
typedef AbilityChecker< T... >	HasAbility
typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache
typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext
typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache
typedef CacheTypes::RunCache	RunCache
typedef RunContextT< RunCache, GlobalCache >	RunContext
typedef CacheTypes::RunSummaryCache	RunSummaryCache

Detailed Description

Definition at line 29 of file MuonReSeeder.cc.

Constructor & Destructor Documentation

MuonReSeeder()

MuonReSeeder::MuonReSeeder ( const edm::ParameterSet &  iConfig )

explicit

Definition at line 56 of file MuonReSeeder.cc.

    : src_(consumes<edm::View<reco::Muon>>(iConfig.getParameter<edm::InputTag>("src"))),
      selector_(iConfig.existsAs<std::string>("cut") ? iConfig.getParameter<std::string>("cut") : "", true),
      layersToKeep_(iConfig.getParameter<int32_t>("layersToKeep")),
      insideOut_(iConfig.getParameter<bool>("insideOut")),
      debug_(iConfig.getUntrackedParameter<bool>("debug", false)),
      refitter_(iConfig) {
  produces<std::vector<TrajectorySeed>>();
}

~MuonReSeeder()

MuonReSeeder::~MuonReSeeder ( )

inlineoverride

Definition at line 32 of file MuonReSeeder.cc.

{}

Member Function Documentation

produce()

void MuonReSeeder::produce ( edm::Event &  iEvent, const edm::EventSetup &  iSetup  )

override

Definition at line 66 of file MuonReSeeder.cc.

                                                                        {
  using namespace edm;
  using namespace std;
 
  refitter_.setServices(iSetup);
 
  Handle<View<reco::Muon>> src;
  iEvent.getByToken(src_, src);
 
  //Retrieve tracker topology from geometry
  edm::ESHandle<TrackerTopology> tTopo;
  iSetup.get<TrackerTopologyRcd>().get(tTopo);
 
  auto out = std::make_unique<std::vector<TrajectorySeed>>();
  unsigned int nsrc = src->size();
  out->reserve(nsrc);
 
  for (View<reco::Muon>::const_iterator it = src->begin(), ed = src->end(); it != ed; ++it) {
    const reco::Muon &mu = *it;
    if (mu.track().isNull() || !selector_(mu))
      continue;
    std::vector<Trajectory> traj = refitter_.transform(*mu.track());
    if (traj.size() != 1)
      continue;
    edm::OwnVector<TrackingRecHit> seedHits;
    const std::vector<TrajectoryMeasurement> &tms = traj.front().measurements();
    TrajectoryStateOnSurface tsos;
    const TrackingRecHit *hit = nullptr;
    bool fromInside = (insideOut_ == (traj.front().direction() == alongMomentum));
    if (debug_) {
      std::cout << "Considering muon of pt " << mu.pt() << ", eta = " << mu.eta() << ", phi = " << mu.phi()
                << std::endl;
      std::cout << "Trajectory is " << (traj.front().direction() == alongMomentum ? "along" : "opposite")
                << " to momentum, so will start from " << (fromInside ? "inside" : "outside") << std::endl;
    }
    const TrajectoryMeasurement &tin = (fromInside ? tms.front() : tms.back());
    const TrajectoryMeasurement &tou = (fromInside ? tms.front() : tms.back());
    if (debug_) {
      std::cout << "IN state: subdetector   = " << tin.recHit()->geographicalId().subdetId() << std::endl;
      std::cout << "          global pos Rho  " << tin.updatedState().globalPosition().perp() << ", Z   "
                << tin.updatedState().globalPosition().z() << std::endl;
      std::cout << "OU state: subdetector   = " << tou.recHit()->geographicalId().subdetId() << std::endl;
      std::cout << "          global pos Rho  " << tou.updatedState().globalPosition().perp() << ", Z   "
                << tou.updatedState().globalPosition().z() << std::endl;
    }
    int lastSubdet = 0, lastLayer = -1;
    for (int i = (fromInside ? 0 : tms.size() - 1),
             end = (fromInside ? tms.size() : -1),
             step = (fromInside ? +1 : -1),
             taken = 0;
         (end - i) * step > 0;
         i += step) {
      const TrackingRecHit *lastHit = hit;
      hit = tms[i].recHit()->hit();
      if (debug_)
        std::cout << "  considering hit " << i << ": rechit on " << (hit ? hit->geographicalId().rawId() : -1)
                  << std::endl;
      if (!hit)
        continue;
      int subdet = hit->geographicalId().subdetId();
      int lay = tTopo->layer(hit->geographicalId());
      if (subdet != lastSubdet || lay != lastLayer) {
        // I'm on a new layer
        if (lastHit != nullptr && taken == layersToKeep_) {
          // I've had enough layers, I can stop here
          hit = lastHit;
          break;
        }
        lastSubdet = subdet;
        lastLayer = lay;
        taken++;
      }
      seedHits.push_back(*hit);
      tsos = tms[i].updatedState().isValid()
                 ? tms[i].updatedState()
                 : (abs(i - end) < abs(i) ? tms[i].forwardPredictedState() : tms[i].backwardPredictedState());
      if (debug_) {
        std::cout << "     hit  : subdetector   = " << tms[i].recHit()->geographicalId().subdetId() << std::endl;
        if (hit->isValid()) {
          std::cout << "            global pos Rho  " << tms[i].recHit()->globalPosition().perp() << ", Z   "
                    << tms[i].recHit()->globalPosition().z() << std::endl;
        } else {
          std::cout << "            invalid tracking rec hit, so no global position" << std::endl;
        }
        std::cout << "     state: global pos Rho  " << tsos.globalPosition().perp() << ", Z   "
                  << tsos.globalPosition().z() << std::endl;
      }
    }
    if (!tsos.isValid())
      continue;
    PTrajectoryStateOnDet const &PTraj = trajectoryStateTransform::persistentState(tsos, hit->geographicalId().rawId());
    TrajectorySeed seed(PTraj, std::move(seedHits), insideOut_ ? alongMomentum : oppositeToMomentum);
    out->push_back(seed);
  }
 
  iEvent.put(std::move(out));
}

References funct::abs(), alongMomentum, gather_cfg::cout, debug_, end, edm::OwnVector< T, P >::front(), edm::EventSetup::get(), get, TrajectoryStateOnSurface::globalPosition(), mps_fire::i, iEvent, insideOut_, TrajectoryStateOnSurface::isValid(), TrackerTopology::layer(), layersToKeep_, eostools::move(), amptDefaultParameters_cff::mu, oppositeToMomentum, MillePedeFileConverter_cfg::out, PV3DBase< T, PVType, FrameType >::perp(), trajectoryStateTransform::persistentState(), edm::OwnVector< T, P >::push_back(), TrajectoryMeasurement::recHit(), refitter_, SurveyInfoScenario_cff::seed, selector_, TrackTransformer::setServices(), TrackRefitter_38T_cff::src, src_, TrackTransformer::transform(), TrajectoryMeasurement::updatedState(), and PV3DBase< T, PVType, FrameType >::z().

Member Data Documentation

debug_

bool MuonReSeeder::debug_

private

Dump deug information.

Definition at line 50 of file MuonReSeeder.cc.

Referenced by produce().

insideOut_

bool MuonReSeeder::insideOut_

private

Do inside-out.

Definition at line 47 of file MuonReSeeder.cc.

Referenced by produce().

layersToKeep_

int MuonReSeeder::layersToKeep_

private

How many hits to keep from the muon trajectory.

Definition at line 44 of file MuonReSeeder.cc.

Referenced by produce().

refitter_

TrackTransformer MuonReSeeder::refitter_

private

Track Transformer.

Definition at line 53 of file MuonReSeeder.cc.

Referenced by produce().

selector_

StringCutObjectSelector<reco::Muon> MuonReSeeder::selector_

private

Muon selection.

Definition at line 41 of file MuonReSeeder.cc.

Referenced by produce().

src_

edm::EDGetTokenT<edm::View<reco::Muon> > MuonReSeeder::src_

private

Labels for input collections.

Definition at line 38 of file MuonReSeeder.cc.

Referenced by produce().