#include <FastSimulation/TrackFromSeedProducer/plugins/TrackFromSeedProducer.cc>

Inheritance diagram for TrackFromSeedProducer:

Public Member Functions
	TrackFromSeedProducer (const edm::ParameterSet &)

	~TrackFromSeedProducer () override

Public Member Functions inherited from edm::global::EDProducer<>
	EDProducer ()=default

bool	hasAbilityToProduceInLumis () const final

bool	hasAbilityToProduceInRuns () const final

bool	wantsGlobalLuminosityBlocks () const final

bool	wantsGlobalRuns () const final

bool	wantsStreamLuminosityBlocks () const final

bool	wantsStreamRuns () const final

Public Member Functions inherited from edm::global::EDProducerBase
	EDProducerBase ()

ModuleDescription const &	moduleDescription () const

	~EDProducerBase () override

Public Member Functions inherited from edm::ProducerBase
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)

std::vector< edm::ProductResolverIndex > const &	indiciesForPutProducts (BranchType iBranchType) const

	ProducerBase ()

std::vector< edm::ProductResolverIndex > const &	putTokenIndexToProductResolverIndex () const

void	registerProducts (ProducerBase , ProductRegistry , ModuleDescription const &)

std::function< void(BranchDescription const &)>	registrationCallback () const
	used by the fwk to register list of products More...

void	resolvePutIndicies (BranchType iBranchType, ModuleToResolverIndicies const &iIndicies, std::string const &moduleLabel)

	~ProducerBase () noexcept(false) override

Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const

void	convertCurrentProcessAlias (std::string const &processName)
	Convert "@currentProcess" in InputTag process names to the actual current process name. More...

	EDConsumerBase ()

	EDConsumerBase (EDConsumerBase const &)=delete

	EDConsumerBase (EDConsumerBase &&)=default

ProductResolverIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const

void	itemsMayGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const

void	itemsToGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const

std::vector< ProductResolverIndexAndSkipBit > const &	itemsToGetFrom (BranchType iType) const

void	labelsForToken (EDGetToken iToken, Labels &oLabels) const

void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const

EDConsumerBase const &	operator= (EDConsumerBase const &)=delete

EDConsumerBase &	operator= (EDConsumerBase &&)=default

bool	registeredToConsume (ProductResolverIndex, bool, BranchType) const

bool	registeredToConsumeMany (TypeID const &, BranchType) const

ProductResolverIndexAndSkipBit	uncheckedIndexFrom (EDGetToken) const

void	updateLookup (BranchType iBranchType, ProductResolverIndexHelper const &, bool iPrefetchMayGet)

virtual	~EDConsumerBase () noexcept(false)

Static Public Member Functions
static void	fillDescriptions (edm::ConfigurationDescriptions &descriptions)

Static Public Member Functions inherited from edm::global::EDProducerBase
static const std::string &	baseType ()

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Private Member Functions
void	produce (edm::StreamID, edm::Event &, const edm::EventSetup &) const override

Private Attributes
edm::EDGetTokenT< reco::BeamSpot >	beamSpotToken

edm::EDGetTokenT< edm::View< TrajectorySeed > >	seedsToken

std::string	tTRHBuilderName

Additional Inherited Members
Public Types inherited from edm::global::EDProducerBase
typedef EDProducerBase	ModuleType

Public Types inherited from edm::ProducerBase
using	ModuleToResolverIndicies = std::unordered_multimap< std::string, std::tuple< edm::TypeID const , const char , edm::ProductResolverIndex >>

typedef ProductRegistryHelper::TypeLabelList	TypeLabelList

Public Types inherited from edm::EDConsumerBase
typedef ProductLabels	Labels

Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)

EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)

template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)

ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...

template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()

void	consumesMany (const TypeToGet &id)

template<BranchType B>
void	consumesMany (const TypeToGet &id)

template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)

EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

Detailed Description

Description: [one line class summary]

Implementation: [Notes on implementation]

Definition at line 49 of file TrackFromSeedProducer.cc.

Constructor & Destructor Documentation

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

explicit

Definition at line 77 of file TrackFromSeedProducer.cc.

References AlignmentProducer_cff::beamSpotTag, beamSpotToken, edm::ParameterSet::getParameter(), gedGsfElectrons_cfi::seedsTag, seedsToken, AlCaHLTBitMon_QueryRunRegistry::string, and tTRHBuilderName.

 {
   //register your products
   produces<reco::TrackCollection>();
   produces<TrackingRecHitCollection>();
   produces<reco::TrackExtraCollection>();
 
   // read parametes
   edm::InputTag seedsTag(iConfig.getParameter<edm::InputTag>("src"));
   edm::InputTag beamSpotTag(iConfig.getParameter<edm::InputTag>("beamSpot"));
   tTRHBuilderName = iConfig.getParameter<std::string>("TTRHBuilder");
   
   //consumes
   seedsToken = consumes<edm::View<TrajectorySeed> >(seedsTag);
   beamSpotToken = consumes<reco::BeamSpot>(beamSpotTag);
 }

TrackFromSeedProducer::~TrackFromSeedProducer ( )

override

Definition at line 95 of file TrackFromSeedProducer.cc.

95 {}

Member Function Documentation

void TrackFromSeedProducer::fillDescriptions ( edm::ConfigurationDescriptions & descriptions )

static

Definition at line 188 of file TrackFromSeedProducer.cc.

References edm::ConfigurationDescriptions::addDefault(), DEFINE_FWK_MODULE, and edm::ParameterSetDescription::setUnknown().

                                                                                   {
   //The following says we do not know what parameters are allowed so do no validation
   // Please change this to state exactly what you do use, even if it is no parameters
   edm::ParameterSetDescription desc;
   desc.setUnknown();
   descriptions.addDefault(desc);
 }

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

overrideprivate

Definition at line 99 of file TrackFromSeedProducer.cc.

References ecalDrivenElectronSeedsParameters_cff::beamSpot, beamSpotToken, TransientTrackingRecHitBuilder::build(), TrajectoryStateOnSurface::charge(), TrajectoryStateOnSurface::freeState(), PerigeeConversions::ftsToPerigeeError(), edm::EventSetup::get(), edm::Event::getByToken(), edm::Event::getRefBeforePut(), eostools::move(), edm::ESHandle< T >::product(), edm::Event::put(), TrackInfoProducer_cfi::rechits, SurveyInfoScenario_cff::seed, seedsToken, l1t::tracks, trajectoryStateTransform::transientState(), and tTRHBuilderName.

 {
    using namespace edm;
    using namespace reco;
    using namespace std;
    
    // output collection
    unique_ptr<TrackCollection> tracks(new TrackCollection);
    unique_ptr<TrackingRecHitCollection> rechits(new TrackingRecHitCollection);
    unique_ptr<TrackExtraCollection> trackextras(new TrackExtraCollection);
    
    // product references 
    TrackExtraRefProd ref_trackextras = iEvent.getRefBeforePut<TrackExtraCollection>();
    TrackingRecHitRefProd ref_rechits = iEvent.getRefBeforePut<TrackingRecHitCollection>();
 
    // input collection
    Handle<edm::View<TrajectorySeed> > hseeds;
    iEvent.getByToken(seedsToken,hseeds);
    const auto& seeds = *hseeds;
 
    // beam spot
    edm::Handle<reco::BeamSpot> beamSpot;
    iEvent.getByToken(beamSpotToken,beamSpot);
 
    // some objects to build to tracks
    TSCBLBuilderNoMaterial tscblBuilder;
 
    edm::ESHandle<TransientTrackingRecHitBuilder> tTRHBuilder;
    iSetup.get<TransientRecHitRecord>().get(tTRHBuilderName,tTRHBuilder);
 
    edm::ESHandle<MagneticField> theMF;
    iSetup.get<IdealMagneticFieldRecord>().get(theMF);
 
    edm::ESHandle<TrackerTopology> httopo;
    iSetup.get<TrackerTopologyRcd>().get(httopo);
    const TrackerTopology& ttopo = *httopo;
 
    // create tracks from seeds
    int nfailed  = 0;
    for(size_t iSeed=0; iSeed < seeds.size(); ++iSeed) {
      auto const& seed = seeds[iSeed];
      // try to create a track
      TransientTrackingRecHit::RecHitPointer lastRecHit = tTRHBuilder->build(&*(seed.recHits().second-1));
      TrajectoryStateOnSurface state = trajectoryStateTransform::transientState( seed.startingState(), lastRecHit->surface(), theMF.product());
      TrajectoryStateClosestToBeamLine tsAtClosestApproachSeed = tscblBuilder(*state.freeState(),*beamSpot);//as in TrackProducerAlgorithm
      if(tsAtClosestApproachSeed.isValid()) {
        const reco::TrackBase::Point vSeed1(tsAtClosestApproachSeed.trackStateAtPCA().position().x(),
                                            tsAtClosestApproachSeed.trackStateAtPCA().position().y(),
                                            tsAtClosestApproachSeed.trackStateAtPCA().position().z());
        const reco::TrackBase::Vector pSeed(tsAtClosestApproachSeed.trackStateAtPCA().momentum().x(),
                                            tsAtClosestApproachSeed.trackStateAtPCA().momentum().y(),
                                            tsAtClosestApproachSeed.trackStateAtPCA().momentum().z());
        //GlobalPoint vSeed(vSeed1.x()-beamSpot->x0(),vSeed1.y()-beamSpot->y0(),vSeed1.z()-beamSpot->z0());
        PerigeeTrajectoryError seedPerigeeErrors = PerigeeConversions::ftsToPerigeeError(tsAtClosestApproachSeed.trackStateAtPCA());
        tracks->emplace_back(0.,0., vSeed1, pSeed, state.charge(), seedPerigeeErrors.covarianceMatrix());
      }
      else {
        edm::LogVerbatim("SeedValidator")<<"TrajectoryStateClosestToBeamLine not valid";
        // use magic values chi2<0, ndof<0, charge=0 to denote a case where the fit has failed
        // If this definition is changed, change also interface/trackFromSeedFitFailed.h
        tracks->emplace_back(-1, -1, reco::TrackBase::Point(), reco::TrackBase::Vector(), 0, reco::TrackBase::CovarianceMatrix());
        nfailed++;
      }
 
      tracks->back().appendHits(seed.recHits().first,seed.recHits().second,ttopo);
      // store the hits
      size_t firsthitindex = rechits->size();
      for(auto hitit = seed.recHits().first;hitit != seed.recHits().second;++hitit){
        rechits->push_back(*hitit);
      }
 
      // create a trackextra, just to store the hit range
      trackextras->push_back(TrackExtra());
      trackextras->back().setHits(ref_rechits,firsthitindex,rechits->size() - firsthitindex);
      trackextras->back().setSeedRef(edm::RefToBase<TrajectorySeed>(hseeds, iSeed));
      // create link between track and trackextra
      tracks->back().setExtra( TrackExtraRef( ref_trackextras, trackextras->size() - 1) );
    }
    
    if (nfailed > 0) {
      edm::LogInfo("SeedValidator") << "failed to create tracks from " << nfailed <<  " out of " << seeds.size() << " seeds ";
    }
    iEvent.put(std::move(tracks));
    iEvent.put(std::move(rechits));
    iEvent.put(std::move(trackextras));
 }