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

Inheritance diagram for TrackFromSeedProducer:

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

	~TrackFromSeedProducer ()

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

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

ModuleDescription const &	moduleDescription () const

virtual	~EDProducerBase ()

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 ()

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, std::unordered_multimap< std::string, edm::ProductResolverIndex > const &iIndicies, std::string const &moduleLabel)

virtual	~ProducerBase () noexcept(false)

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

	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 &	itemsToGetFromEvent () 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

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
virtual 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
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 HLT_25ns10e33_v2_cff::beamSpotTag, beamSpotToken, edm::ParameterSet::getParameter(), 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 ( )

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(), 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

overrideprivatevirtual

Implements edm::global::EDProducerBase.

Definition at line 99 of file TrackFromSeedProducer.cc.

References SiPixelRawToDigiRegional_cfi::beamSpot, beamSpotToken, TrajectoryStateOnSurface::charge(), TrajectoryStateOnSurface::freeState(), PerigeeConversions::ftsToPerigeeError(), edm::EventSetup::get(), edm::Event::getByToken(), edm::Event::getRefBeforePut(), eostools::move(), edm::Event::put(), HI_PhotonSkim_cff::rechits, dt_dqm_sourceclient_common_cff::reco, fileCollector::seed, seedsToken, testEve_cfg::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));
 }