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bendavid |
1.3 |
// $Id: FillerTracks.cc,v 1.2 2008/07/01 21:11:47 loizides Exp $
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loizides |
1.1 |
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#include "MitProd/TreeFiller/interface/FillerTracks.h"
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#include "FWCore/MessageLogger/interface/MessageLogger.h"
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#include "DataFormats/Common/interface/Handle.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 "DataFormats/RecoCandidate/interface/TrackAssociation.h"
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#include "MitAna/DataTree/interface/Track.h"
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#include "MitAna/DataTree/interface/Names.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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loizides |
1.2 |
FillerTracks::FillerTracks(const ParameterSet &cfg, const char *name,
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bool active, const SimParticleMap *sm) :
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BaseFiller(cfg, name, active),
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loizides |
1.1 |
edmName_(Conf().getUntrackedParameter<string>("edmName","")),
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mitName_(Conf().getUntrackedParameter<string>("mitName","")),
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edmSimAssociationName_(Conf().getUntrackedParameter<string>("edmSimAssociationName","")),
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simMap_(sm),
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tracks_(new mithep::TrackArr),
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trackMap_(new mithep::TrackMap)
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{
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// Constructor.
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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 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.
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tws.AddBranch(mitName_.c_str(),&tracks_);
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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_->Reset();
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trackMap_->Reset();
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// get the tracks collection
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try {
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bendavid |
1.3 |
event.getByLabel(edm::InputTag(edmName_),trackProduct_);
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loizides |
1.1 |
} catch (cms::Exception& ex) {
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edm::LogError("FillerTracks") << "Error! Cannot get collection with label "
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<< edmName_ << endl;
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throw edm::Exception(edm::errors::Configuration, "FillerTracks:FillDataBlock()\n")
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<< "Error! Cannot get collection with label " << edmName_ << endl;
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}
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trackMap_->SetEdmProductId(trackProduct_.id().id());
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const reco::TrackCollection inTracks = *(trackProduct_.product());
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// if we have a Sim Particle association (for monte carlo), initialize the reco->sim mappings
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reco::RecoToSimCollection simAssociation;
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if (simMap_ && !edmSimAssociationName_.empty()) {
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Handle<reco::RecoToSimCollection> simAssociationProduct;
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try {
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bendavid |
1.3 |
event.getByLabel(edm::InputTag(edmSimAssociationName_), simAssociationProduct);
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loizides |
1.1 |
}
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catch (cms::Exception& ex) {
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edm::LogError("FillerTracks") << "Error! Cannot get collection with label "
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<< edmSimAssociationName_ << endl;
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throw edm::Exception(edm::errors::Configuration, "FillerTracks:FillDataBlock()\n")
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<< "Error! Cannot get collection with label " << edmSimAssociationName_ << endl;
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}
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simAssociation = *(simAssociationProduct.product());
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}
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// loop through all tracks
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for (reco::TrackCollection::const_iterator inTrack = inTracks.begin();
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inTrack != inTracks.end(); ++inTrack) {
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mithep::Track* outTrack = tracks_->Allocate();
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new (outTrack) mithep::Track(inTrack->phi(),inTrack->d0(),inTrack->pt(),inTrack->dz(),inTrack->theta());
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outTrack->SetErrors(inTrack->phiError(),
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inTrack->d0Error(),
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inTrack->ptError(),
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inTrack->dzError(),
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inTrack->thetaError());
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outTrack->SetCharge(inTrack->charge());
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// add reference between mithep and edm object
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reco::TrackRef theRef(trackProduct_, inTrack-inTracks.begin());
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trackMap_->Add(theRef, outTrack);
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if (simMap_ && !edmSimAssociationName_.empty()) {
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reco::TrackBaseRef theBaseRef(theRef);
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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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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->SetSimParticle(simMap_->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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