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#include "UserCode/ShallowTools/interface/ShallowSimTracksProducer.h"
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#include "UserCode/ShallowTools/interface/ShallowTools.h"
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#include "FWCore/Framework/interface/Event.h"
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#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticle.h"
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#include "SimTracker/Records/interface/TrackAssociatorRecord.h"
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#include "SimTracker/TrackAssociation/interface/TrackAssociatorByChi2.h"
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#include "SimTracker/TrackAssociation/interface/TrackAssociatorByHits.h"
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#include "DataFormats/RecoCandidate/interface/TrackAssociation.h"
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#include "FWCore/MessageLogger/interface/MessageLogger.h"
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ShallowSimTracksProducer::ShallowSimTracksProducer(const edm::ParameterSet& conf)
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: Prefix( conf.getParameter<std::string>("Prefix") ),
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Suffix( conf.getParameter<std::string>("Suffix") ),
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trackingParticles_tag( conf.getParameter<edm::InputTag>("TrackingParticles")),
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associator_tag( conf.getParameter<edm::ESInputTag>("Associator")),
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tracks_tag( conf.getParameter<edm::InputTag>("Tracks"))
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{
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produces <std::vector<unsigned> > ( Prefix + "multi" + Suffix );
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produces <std::vector<int> > ( Prefix + "type" + Suffix );
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produces <std::vector<float> > ( Prefix + "charge" + Suffix );
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produces <std::vector<float> > ( Prefix + "momentum" + Suffix );
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produces <std::vector<float> > ( Prefix + "pt" + Suffix );
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produces <std::vector<double> > ( Prefix + "theta" + Suffix );
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produces <std::vector<double> > ( Prefix + "phi" + Suffix );
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produces <std::vector<double> > ( Prefix + "eta" + Suffix );
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produces <std::vector<double> > ( Prefix + "qoverp" + Suffix );
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produces <std::vector<double> > ( Prefix + "vx" + Suffix );
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produces <std::vector<double> > ( Prefix + "vy" + Suffix );
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produces <std::vector<double> > ( Prefix + "vz" + Suffix );
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}
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void ShallowSimTracksProducer::
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produce(edm::Event& event, const edm::EventSetup& setup) {
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edm::Handle<edm::View<reco::Track> > tracks ; event.getByLabel( tracks_tag, tracks);
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edm::Handle<TrackingParticleCollection> trackingParticles ; event.getByLabel( trackingParticles_tag, trackingParticles );
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edm::ESHandle<TrackAssociatorBase> associator ; setup.get<TrackAssociatorRecord>().get( associator_tag, associator);
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unsigned size = tracks->size();
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std::auto_ptr<std::vector<unsigned> > multi ( new std::vector<unsigned>(size, 0));
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std::auto_ptr<std::vector<int> > type ( new std::vector<int> (size, 0));
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std::auto_ptr<std::vector<float> > charge ( new std::vector<float> (size, 0));
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std::auto_ptr<std::vector<float> > momentum ( new std::vector<float> (size, -1));
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std::auto_ptr<std::vector<float> > pt ( new std::vector<float> (size, -1));
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std::auto_ptr<std::vector<double> > theta ( new std::vector<double> (size,-1000));
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std::auto_ptr<std::vector<double> > phi ( new std::vector<double> (size,-1000));
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std::auto_ptr<std::vector<double> > eta ( new std::vector<double> (size,-1000));
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std::auto_ptr<std::vector<double> > dxy ( new std::vector<double> (size,-1000));
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std::auto_ptr<std::vector<double> > dsz ( new std::vector<double> (size,-1000));
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std::auto_ptr<std::vector<double> > qoverp ( new std::vector<double> (size,-1000));
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std::auto_ptr<std::vector<double> > vx ( new std::vector<double> (size,-1000));
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std::auto_ptr<std::vector<double> > vy ( new std::vector<double> (size,-1000));
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std::auto_ptr<std::vector<double> > vz ( new std::vector<double> (size,-1000));
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reco::RecoToSimCollection associations = associator->associateRecoToSim( tracks, trackingParticles, &event );
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for( reco::RecoToSimCollection::const_iterator association = associations.begin();
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association != associations.end(); association++) {
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const reco::Track* track = association->key.get();
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const int matches = association->val.size();
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if(matches>0) {
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const TrackingParticle* tparticle = association->val[0].first.get();
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unsigned i = shallow::findTrackIndex(tracks, track);
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multi->at(i) = matches;
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type->at(i) = tparticle->pdgId();
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charge->at(i)= tparticle->charge();
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momentum->at(i)=tparticle->p() ;
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pt->at(i) = tparticle->pt() ;
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theta->at(i) = tparticle->theta() ;
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phi->at(i) = tparticle->phi() ;
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eta->at(i) = tparticle->eta() ;
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qoverp->at(i)= tparticle->charge()/tparticle->p();
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const TrackingVertex* tvertex = tparticle->parentVertex().get();
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vx->at(i) = tvertex->position().x();
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vy->at(i) = tvertex->position().y();
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vz->at(i) = tvertex->position().z();
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}
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}
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event.put( multi ,Prefix + "multi" + Suffix );
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event.put( type ,Prefix + "type" + Suffix );
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event.put( charge ,Prefix + "charge" + Suffix );
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event.put( momentum ,Prefix + "momentum" + Suffix );
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event.put( pt ,Prefix + "pt" + Suffix );
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event.put( theta ,Prefix + "theta" + Suffix );
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event.put( phi ,Prefix + "phi" + Suffix );
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event.put( eta ,Prefix + "eta" + Suffix );
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event.put( qoverp ,Prefix + "qoverp" + Suffix );
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event.put( vx ,Prefix + "vx" + Suffix );
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event.put( vy ,Prefix + "vy" + Suffix );
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event.put( vz ,Prefix + "vz" + Suffix );
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}
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