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// $Id: FillerTracks.cc,v 1.30 2009/03/19 22:19:16 loizides Exp $
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#include "MitProd/TreeFiller/interface/FillerTracks.h"
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#include "DataFormats/RecoCandidate/interface/TrackAssociation.h"
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#include "DataFormats/TrackReco/interface/HitPattern.h"
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#include "DataFormats/TrackReco/interface/Track.h"
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#include "DataFormats/TrackReco/interface/TrackFwd.h"
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#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticle.h"
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#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticleFwd.h"
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#include "MagneticField/Engine/interface/MagneticField.h"
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#include "MagneticField/Records/interface/IdealMagneticFieldRecord.h"
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#include "TrackingTools/TrackAssociator/interface/TrackDetectorAssociator.h"
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#include "TrackingTools/TrajectoryState/interface/TrajectoryStateTransform.h"
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#include "MitAna/DataTree/interface/Names.h"
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#include "MitAna/DataTree/interface/TrackCol.h"
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#include "MitProd/ObjectService/interface/ObjectService.h"
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#include "MitEdm/DataFormats/interface/Types.h"
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using namespace std;
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using namespace edm;
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using namespace mithep;
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//--------------------------------------------------------------------------------------------------
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FillerTracks::FillerTracks(const ParameterSet &cfg, const char *name, bool active) :
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BaseFiller(cfg,name,active),
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ecalAssocActive_(Conf().getUntrackedParameter<bool>("ecalAssocActive",0)),
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edmName_(Conf().getUntrackedParameter<string>("edmName","generalTracks")),
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mitName_(Conf().getUntrackedParameter<string>("mitName",Names::gkTrackBrn)),
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edmSimAssocName_(Conf().getUntrackedParameter<string>("edmSimAssociationName","")),
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trackingMapName_(Conf().getUntrackedParameter<string>("trackingMapName","TrackingMap")),
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barrelSuperClusterIdMapName_(Conf().getUntrackedParameter<string>
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("superClusterIdMapName","barrelSuperClusterIdMap")),
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endcapSuperClusterIdMapName_(Conf().getUntrackedParameter<string>
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("endcapClusterIdMapName","endcapSuperClusterIdMap")),
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trackMapName_(Conf().getUntrackedParameter<string>("trackMapName",
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Form("%sMapName",mitName_.c_str()))),
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trackingMap_(0),
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tracks_(new mithep::TrackArr(250)),
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trackMap_(new mithep::TrackMap)
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{
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// Constructor.
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if (ecalAssocActive_) // initialize track associator configuration if needed
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assocParams_.loadParameters(
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cfg.getUntrackedParameter<ParameterSet>("TrackAssociatorParameters"));
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}
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//--------------------------------------------------------------------------------------------------
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FillerTracks::~FillerTracks()
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{
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// Destructor.
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delete tracks_;
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delete trackMap_;
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}
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//--------------------------------------------------------------------------------------------------
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void FillerTracks::BookDataBlock(TreeWriter &tws)
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{
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// Add tracks branch to tree, publish and get our objects.
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tws.AddBranch(mitName_,&tracks_);
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OS()->add<TrackArr>(tracks_,mitName_);
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if (!trackingMapName_.empty()) {
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trackingMap_ = OS()->get<TrackingParticleMap>(trackingMapName_);
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if (trackingMap_)
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AddBranchDep(mitName_,trackingMap_->GetBrName());
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}
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if (ecalAssocActive_ && !barrelSuperClusterIdMapName_.empty()) {
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barrelSuperClusterIdMap_ = OS()->get<SuperClusterIdMap>(barrelSuperClusterIdMapName_);
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if (barrelSuperClusterIdMap_)
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AddBranchDep(mitName_,barrelSuperClusterIdMap_->GetBrName());
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}
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if (ecalAssocActive_ && !endcapSuperClusterIdMapName_.empty()) {
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endcapSuperClusterIdMap_ = OS()->get<SuperClusterIdMap>(endcapSuperClusterIdMapName_);
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if (endcapSuperClusterIdMap_)
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AddBranchDep(mitName_,endcapSuperClusterIdMap_->GetBrName());
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}
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if (!trackMapName_.empty()) {
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trackMap_->SetBrName(mitName_);
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OS()->add<TrackMap>(trackMap_,trackMapName_);
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}
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}
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//--------------------------------------------------------------------------------------------------
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void FillerTracks::FillDataBlock(const edm::Event &event,
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const edm::EventSetup &setup)
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{
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// Fill tracks from edm collection into our collection.
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tracks_ ->Delete();
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trackMap_->Reset();
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// initialize handle and get product,
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// this usage allows also to get collections of classes which inherit from reco::Track
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Handle<View<reco::Track> > hTrackProduct;
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GetProduct(edmName_, hTrackProduct, event);
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trackMap_->SetEdmProductId(hTrackProduct.id().id());
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const View<reco::Track> inTracks = *(hTrackProduct.product());
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// for MC SimParticle association (reco->sim mappings)
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reco::RecoToSimCollection simAssociation;
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if (trackingMap_ && !edmSimAssocName_.empty()) {
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Handle<reco::RecoToSimCollection> simAssociationProduct;
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GetProduct(edmSimAssocName_, simAssociationProduct, event);
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simAssociation = *(simAssociationProduct.product());
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if (verbose_>1)
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printf("SimAssociation Map Size = %i\n",simAssociation.size());
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}
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// set up associator for Track-Ecal associations
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TrackDetectorAssociator trackAssociator;
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trackAssociator.useDefaultPropagator();
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edm::ESHandle<MagneticField> bField;
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if (ecalAssocActive_)
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setup.get<IdealMagneticFieldRecord>().get(bField);
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// loop through all tracks and fill the information
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for (View<reco::Track>::const_iterator it = inTracks.begin();
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it != inTracks.end(); ++it) {
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mithep::Track *outTrack = tracks_->Allocate();
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// create track and set the core parameters
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new (outTrack) mithep::Track(it->qoverp(),it->lambda(),
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it->phi(),it->dxy(),it->dsz());
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outTrack->SetErrors(it->qoverpError(),it->lambdaError(),
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it->phiError(),it->dxyError(),it->dszError());
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// fill track quality information
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outTrack->SetChi2(it->chi2());
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outTrack->SetNdof(static_cast<Int_t>(it->ndof()));
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//fill hit layer map
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const reco::HitPattern &hits = it->hitPattern();
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for (Int_t i=0; i<hits.numberOfHits(); i++) {
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uint32_t hit = hits.getHitPattern(i);
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if (hits.validHitFilter(hit))
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if (hits.trackerHitFilter(hit))
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outTrack->SetHit(hitReader_.Layer(hit));
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if (verbose_>2) {
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if (hits.muonDTHitFilter(hit))
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printf("Muon DT Layer = %i\n", hits.getLayer(hit));
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if (hits.muonCSCHitFilter(hit))
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printf("Muon CSC Layer = %i\n", hits.getLayer(hit));
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if (hits.muonRPCHitFilter(hit))
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printf("Muon RPC Layer = %i\n", hits.getLayer(hit));
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}
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}
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//make ecal associations
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if (ecalAssocActive_) {
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TrackDetMatchInfo matchInfo;
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//Extra check to allow propagation to work in AOD where no TrackExtra is available
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if (it->extra().isAvailable())
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matchInfo = trackAssociator.associate(event,setup,*it,assocParams_);
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else {
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TrajectoryStateTransform tsTransform;
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FreeTrajectoryState initialState = tsTransform.initialFreeState(*it,&*bField);
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matchInfo = trackAssociator.associate(event, setup, assocParams_, &initialState);
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}
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outTrack->SetEtaEcal(matchInfo.trkGlobPosAtEcal.eta());
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outTrack->SetPhiEcal(matchInfo.trkGlobPosAtEcal.phi());
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//fill supercluster link
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if (barrelSuperClusterIdMap_ || endcapSuperClusterIdMap_) {
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mithep::SuperCluster *cluster = 0;
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for (std::vector<const ::CaloTower*>::const_iterator iTower =
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matchInfo.crossedTowers.begin();
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iTower<matchInfo.crossedTowers.end() && !cluster; iTower++) {
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for (uint ihit=0; ihit<(*iTower)->constituentsSize() && !cluster; ihit++) {
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DetId hit = (*iTower)->constituent(ihit);
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if (barrelSuperClusterIdMap_ && barrelSuperClusterIdMap_->HasMit(hit))
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cluster = barrelSuperClusterIdMap_->GetMit(hit);
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else if (endcapSuperClusterIdMap_ && endcapSuperClusterIdMap_->HasMit(hit))
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cluster = endcapSuperClusterIdMap_->GetMit(hit);
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}
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}
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if (cluster)
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outTrack->SetSCluster(cluster);
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}
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}
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// add reference between mithep and edm object
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if (trackMap_) {
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mitedm::TrackPtr thePtr = inTracks.ptrAt(it - inTracks.begin());
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trackMap_->Add(thePtr, outTrack);
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}
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//do dim associations
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if (trackingMap_ && !edmSimAssocName_.empty()) {
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if (verbose_>1)
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printf("Trying Track-Sim association\n");
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reco::TrackBaseRef theBaseRef = inTracks.refAt(it - inTracks.begin());
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vector<pair<TrackingParticleRef, double> > simRefs;
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Bool_t noSimParticle = 0;
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try {
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simRefs = simAssociation[theBaseRef]; //try to get the sim references if existing
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}
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catch (edm::Exception &ex) {
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noSimParticle = 1;
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}
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if (!noSimParticle) { //loop through sim match candidates
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if (verbose_>1)
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printf("Applying track-sim association\n");
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for (vector<pair<TrackingParticleRef, double> >::const_iterator simRefPair=simRefs.begin();
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simRefPair != simRefs.end(); ++simRefPair)
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if (simRefPair->second > 0.5) // require more than 50% shared hits between reco and sim
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outTrack->SetMCPart(trackingMap_->GetMit(simRefPair->first)); //add reco->sim reference
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}
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}
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}
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tracks_->Trim();
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}
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