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// -*- C++ -*-
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//
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// Package: LhcTrackAnalyzer
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// Class: LhcTrackAnalyzer
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//
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/**\class LhcTrackAnalyzer LhcTrackAnalyzer.cc MySub/LhcTrackAnalyzer/src/LhcTrackAnalyzer.cc
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Description: <one line class summary>
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Implementation:
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<Notes on implementation>
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*/
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//
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// updated to 25/2/2009 5.30 pm
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//
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//
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// system include files
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#include <memory>
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// user include files
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#include "UserCode/PVStudy/interface/LhcTrackAnalyzer.h"
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#include "FWCore/Framework/interface/Frameworkfwd.h"
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#include "FWCore/Framework/interface/EDAnalyzer.h"
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#include "SimDataFormats/EncodedEventId/interface/EncodedEventId.h"
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#include "FWCore/Framework/interface/Event.h"
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#include <FWCore/Framework/interface/ESHandle.h>
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#include "FWCore/Framework/interface/MakerMacros.h"
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#include "FWCore/ParameterSet/interface/ParameterSet.h"
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#include <SimDataFormats/TrackingAnalysis/interface/TrackingParticle.h>
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#include <SimDataFormats/TrackingHit/interface/PSimHit.h>
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#include "TH1F.h"
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#include "TH2F.h"
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#include "TFile.h"
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#include "TROOT.h"
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#include "TChain.h"
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#include "TNtuple.h"
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#include "FWCore/ServiceRegistry/interface/Service.h"
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#include "PhysicsTools/UtilAlgos/interface/TFileService.h"
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#include "Geometry/Records/interface/TrackerDigiGeometryRecord.h"
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#include <Geometry/TrackerGeometryBuilder/interface/TrackerGeometry.h>
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#include <DataFormats/GeometrySurface/interface/Surface.h>
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#include <DataFormats/GeometrySurface/interface/GloballyPositioned.h>
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#include <Geometry/CommonDetUnit/interface/GeomDet.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 "DataFormats/TrackReco/interface/Track.h"
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#include "DataFormats/TrackReco/interface/TrackFwd.h"
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// Constructor
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LhcTrackAnalyzer::LhcTrackAnalyzer(const edm::ParameterSet& iConfig)
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{
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//now do what ever initialization is needed
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debug_ = iConfig.getParameter<bool> ("Debug");
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TrackCollectionTag_ = iConfig.getParameter<edm::InputTag>("TrackCollectionTag");
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filename_ = iConfig.getParameter<std::string>("OutputFileName");
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}
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// Destructor
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LhcTrackAnalyzer::~LhcTrackAnalyzer()
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{
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// do anything here that needs to be done at desctruction time
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// (e.g. close files, deallocate resources etc.)
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}
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//
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// member functions
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//
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// ------------ method called to for each event ------------
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void
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LhcTrackAnalyzer::analyze(const edm::Event& iEvent, const edm::EventSetup& iSetup)
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{
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using namespace edm;
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using namespace reco;
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using namespace std;
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//=======================================================
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// Initialize Root-tuple variables
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//=======================================================
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SetVarToZero();
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//=======================================================
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// Retrieve the Track information
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//=======================================================
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Handle< TrackCollection> trackCollectionHandle;
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iEvent.getByLabel(TrackCollectionTag_, trackCollectionHandle);
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if(debug_)
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cout<<"LhcTrackAnalyzer::analyze() looping over "<< trackCollectionHandle->size()<< "tracks." << endl;
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unsigned int i = 0;
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for(TrackCollection::const_iterator track = trackCollectionHandle->begin(); track!= trackCollectionHandle->end(); ++track, ++i)
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{
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if ( nTracks_ >= nMaxtracks_ ) {
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std::cout << " LhcTrackAnalyzer::analyze() : Warning - Number of tracks: " << nTracks_ << " , greater than " << nMaxtracks_ << std::endl;
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continue;
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}
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pt_[nTracks_] = track->pt();
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eta_[nTracks_] = track->eta();
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phi_[nTracks_] = track->phi();
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chi2_[nTracks_] = track->chi2();
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chi2ndof_[nTracks_] = track->normalizedChi2();
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charge_[nTracks_] = track->charge();
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qoverp_[nTracks_] = track->qoverp();
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dz_[nTracks_] = track->dz();
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dxy_[nTracks_] = track->dxy();
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xPCA_[nTracks_] = track->vertex().x();
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yPCA_[nTracks_] = track->vertex().y();
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zPCA_[nTracks_] = track->vertex().z();
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++nTracks_;
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if(debug_)
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cout<< "Track "<<i<<" : pT = "<<track->pt()<<endl;
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}
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rootTree_->Fill();
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}
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// ------------ method called once each job before begining the event loop ------------
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void LhcTrackAnalyzer::beginJob(const edm::EventSetup&)
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{
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edm::LogInfo("beginJob") << "Begin Job" << std::endl;
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// Define TTree for output
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rootFile_ = new TFile(filename_.c_str(),"recreate");
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rootTree_ = new TTree("tree","Lhc Track tree");
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// Track Paramters
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rootTree_->Branch("nTracks",&nTracks_,"nTracks/I");
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rootTree_->Branch("pt",&pt_,"pt[nTracks]/D");
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rootTree_->Branch("eta",&eta_,"eta[nTracks]/D");
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rootTree_->Branch("phi",&phi_,"phi[nTracks]/D");
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rootTree_->Branch("chi2",&chi2_,"chi2[nTracks]/D");
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rootTree_->Branch("chi2ndof",&chi2ndof_,"chi2ndof[nTracks]/D");
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rootTree_->Branch("charge",&charge_,"charge[nTracks]/I");
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rootTree_->Branch("qoverp",&qoverp_,"qoverp[nTracks]/D");
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rootTree_->Branch("dz",&dz_,"dz[nTracks]/D");
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rootTree_->Branch("dxy",&dxy_,"dxy[nTracks]/D");
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rootTree_->Branch("xPCA",&xPCA_,"xPCA[nTracks]/D");
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rootTree_->Branch("yPCA",&yPCA_,"yPCA[nTracks]/D");
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rootTree_->Branch("zPCA",&zPCA_,"zPCA[nTracks]/D");
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}
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// ------------ method called once each job just after ending the event loop ------------
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void LhcTrackAnalyzer::endJob()
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{
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if ( rootFile_ ) {
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rootFile_->Write();
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rootFile_->Close();
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}
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}
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void LhcTrackAnalyzer::SetVarToZero() {
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nTracks_ = 0;
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for ( int i=0; i<nMaxtracks_; ++i ) {
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pt_[i] = 0;
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eta_[i] = 0;
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phi_[i] = 0;
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chi2_[i] = 0;
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chi2ndof_[i] = 0;
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charge_[i] = 0;
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qoverp_[i] = 0;
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dz_[i] = 0;
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dxy_[i] = 0;
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xPCA_[i] = 0;
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yPCA_[i] = 0;
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zPCA_[i] = 0;
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}
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}
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//define this as a plug-in
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//DEFINE_FWK_MODULE(LhcTrackAnalyzer);
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