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// -*- C++ -*-
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//
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// Package: TrackSplitterProducer
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// Class: TrackSplitterProducer
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//
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/**\class TrackSplitterProducer TrackSplitterProducer.cc MySub/TrackSplitterProducer/src/TrackSplitterProducer.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 19/9/2009 8.30 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/TrackSplitterProducer.h"
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#include "FWCore/Framework/interface/Frameworkfwd.h"
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#include "FWCore/Framework/interface/EDProducer.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/EventSetup.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 "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 "DataFormats/TrackReco/interface/Track.h"
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#include "DataFormats/TrackReco/interface/TrackFwd.h"
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yygao |
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#include "DataFormats/VertexReco/interface/Vertex.h"
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#include <DataFormats/VertexReco/interface/VertexFwd.h>
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yygao |
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#include "UserCode/PVStudy/interface/TrackSorter.h"
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yygao |
1.2 |
#include "TrackingTools/TransientTrack/interface/TransientTrackBuilder.h"
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#include "TrackingTools/Records/interface/TransientTrackRecord.h"
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#include "TrackingTools/TransientTrack/interface/TransientTrack.h"
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#include "MagneticField/Records/interface/IdealMagneticFieldRecord.h"
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yygao |
1.1 |
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yygao |
1.2 |
#include "PhysicsTools/UtilAlgos/interface/TFileService.h"
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yygao |
1.1 |
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TrackSplitterProducer::TrackSplitterProducer(const edm::ParameterSet & iConfig)
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: theTrackFilter(iConfig.getParameter<edm::ParameterSet>("TkFilterParameters"))
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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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bsSrc = iConfig.getParameter< edm::InputTag >("beamSpot");
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yygao |
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vertexCollectionTag_ = iConfig.getUntrackedParameter<edm::InputTag>("vertexCollection");
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min_pvtx_zsep_ = iConfig.getParameter<double> ("minPvtxZsep");
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yygao |
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pixelVertexCollectionTag_ = iConfig.getParameter<edm::InputTag>("pixelVertexCollectionTag");
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trkFilterZcut_ = iConfig.getParameter<double> ("trkFilterZcut");
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yygao |
1.1 |
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produces<TrackCollection>("SplittedTracks1");
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yygao |
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produces<TrackCollection>("SplittedTracks2");
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}
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void TrackSplitterProducer::produce(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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yygao |
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if(debug_)
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cout<<"Starting TrackSplitterProducer::produce()..."<<endl;
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yygao |
1.3 |
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//=======================================================
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// PVTX accessors
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//=======================================================
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//vertexCollection
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static const reco::VertexCollection s_empty_vertexColl;
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const reco::VertexCollection *vertexColl = &s_empty_vertexColl;
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edm::Handle<reco::VertexCollection> vertexCollectionHandle;
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iEvent.getByLabel(vertexCollectionTag_, vertexCollectionHandle);
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if( iEvent.getByLabel(vertexCollectionTag_, vertexCollectionHandle)) {
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vertexColl = vertexCollectionHandle.product();
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} else {
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cout << "vertexCollection cannot be found -> using empty collection of same type." <<endl;
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}
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if (vertexColl->size() == 0) return;
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// The event must have a valid leading vertex with proper fit (!isFake())
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if (vertexColl->begin()->isFake() || !(vertexColl->begin()->isValid())) return;
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// == Apply event pre-selection based on if the leading pvtx has nearby pvtx within max_zsep
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// zsep is the mininum separation of the secondary pvtxs to the leading one
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if(vertexColl->size()>1) {
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double zsep = 9999.0;
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for(reco::VertexCollection::const_iterator v=vertexColl->begin() + 1 ;
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v!=vertexColl->end(); ++v) {
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if(v->isValid() && ! v->isFake()) {
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// zsep
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if(fabs(v->z()- vertexColl->begin()->z())< zsep)
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zsep = fabs(v->z()- vertexColl->begin()->z());
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}
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}
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if( zsep < min_pvtx_zsep_ ) return;
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}
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yygao |
1.2 |
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yygao |
1.3 |
//=======================================================
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// Track accessors
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//=======================================================
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edm::Handle<reco::TrackCollection> trackCollectionHandle;
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1.1 |
iEvent.getByLabel(TrackCollectionTag_, trackCollectionHandle);
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yygao |
1.3 |
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//=======================================================
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// BeamSpot accessors
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//=======================================================
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yygao |
1.1 |
edm::Handle<reco::BeamSpot> recoBeamSpotHandle;
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iEvent.getByLabel(bsSrc,recoBeamSpotHandle);
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reco::BeamSpot bs = *recoBeamSpotHandle;
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if(trackCollectionHandle->size() == 0 ) return;
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// Sort the Tracks in the order of descending pT
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TrackSorter trksorter;
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TrackCollection sortedTrackColl = trksorter.sortedList(*(trackCollectionHandle.product()));
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// Filter the track for PV
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std::vector<reco::Track> filtedTrackColl;
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edm::ESHandle<TransientTrackBuilder> theB;
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iSetup.get<TransientTrackRecord>().get("TransientTrackBuilder",theB);
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yygao |
1.2 |
//Get pixelVertices
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static const reco::VertexCollection s_empty_pixelVertexColl;
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const reco::VertexCollection *pixelVertexColl = &s_empty_pixelVertexColl;
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edm::Handle<reco::VertexCollection> pixelVertexCollectionHandle;
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iEvent.getByLabel(pixelVertexCollectionTag_, pixelVertexCollectionHandle);
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if( iEvent.getByLabel(pixelVertexCollectionTag_, pixelVertexCollectionHandle)) {
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pixelVertexColl = pixelVertexCollectionHandle.product();
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} else {
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cout << "pixelVertexCollection cannot be found. -> using empty collection of same type." <<endl;
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}
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if(debug_)
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cout<<"Getting pixelVertices: size() = "<< pixelVertexColl->size() <<endl;
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yygao |
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if(pixelVertexColl->size() == 0 ) return;
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yygao |
1.1 |
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yygao |
1.2 |
//Get the z and sigma z of the first vertex of pixelVertexColl
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double z_pixelpvtx = pixelVertexColl->begin()->z();
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double zerr_pixelpvtx = pixelVertexColl->begin()->zError();
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if(debug_) {
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std::cout<<"TrackSplitterProducer pixelVertex z = "<<z_pixelpvtx<<" +/- "<<zerr_pixelpvtx<<std::endl;
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// Fill the track->dz() in the PV difference from first pixelpvtx
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std::cout<<"Looping through "<< pixelVertexColl->begin()->tracksSize() <<" pixelTracks"<<endl;
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for(reco::Vertex::trackRef_iterator t = (pixelVertexColl->begin())->tracks_begin();
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t!= (pixelVertexColl->begin())->tracks_end(); t++) {
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// illegal charge
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if ( (**t).charge() < -1 || (**t).charge() > 1 ) {
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// h["trkPtPV"]->Fill(0.);
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}
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else
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std::cout<<"pixelTrack dz() = "<<(**t).dz()<<" +/- "<<(**t).dzError()<<endl;
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}
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}
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yygao |
1.3 |
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// Loop over generalTracks and apply trkFilter
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yygao |
1.1 |
for(TrackCollection::const_iterator track = sortedTrackColl.begin(); track!= sortedTrackColl.end(); ++track)
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{
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TransientTrack t_track = (*theB).build(*track);
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t_track.setBeamSpot(bs);
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yygao |
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//Filter tracks based on default track filter by offlinePrimaryVertices
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if (theTrackFilter(t_track)) {
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//Filter tracks based on the z provided by pixelVertices
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if (fabs((track->dz() - z_pixelpvtx)) < trkFilterZcut_ *track->dzError())
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filtedTrackColl.push_back(Track (*track));
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else {
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if(debug_) {
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cout<<"WARNING: track dz is not within "<< trkFilterZcut_ << " cm." <<endl;
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cout<<" track->dz = "<<track->dz()<<" +/- "<<track->dzError()
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<<" track->dz - z_pixelpvtx = " << track->dz()-z_pixelpvtx<<endl;
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}
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}
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}
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yygao |
1.1 |
}
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yygao |
1.3 |
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yygao |
1.1 |
// create the two splitted trackCollections
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splittedTColl1_ = std::auto_ptr<TrackCollection> (new TrackCollection );
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splittedTColl2_ = std::auto_ptr<TrackCollection> (new TrackCollection );
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unsigned int i = 0;
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unsigned int irand = 0;
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if(debug_)
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cout<<"TrackSplitterProducer looping over "<< filtedTrackColl.size()<< "tracks." << endl;
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for(TrackCollection::const_iterator track = filtedTrackColl.begin(); track!= filtedTrackColl.end(); ++track, ++i)
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{
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yygao |
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if(debug_) {
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cout<< "Track "<<i<<" : pT = "<<track->pt()
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<<"; dz = "<< track->dz() <<" +/- "<< track->dzError() <<endl;
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}
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yygao |
1.1 |
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//Iterate every other track
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if (track != (filtedTrackColl.end() -1) ) {
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// iterate every other track
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irand = rand() % 2; // A random number from [0,1]
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if( irand == 0 )
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{
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splittedTColl1_->push_back( Track( *track ) );
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splittedTColl2_->push_back( Track( *(++track) ) );
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++i;
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}
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if( irand == 1 )
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{
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splittedTColl2_->push_back( Track( *track ) );
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splittedTColl1_->push_back( Track( *(++track) ) );
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++i;
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}
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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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}
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//Iterate over splittedTColl1
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if(debug_)
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{
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unsigned int j = 0;
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cout<<"TrackSplitterProducer Looping over splittedTColl1: " <<endl;
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for(TrackCollection::const_iterator track = splittedTColl1_->begin(); track!= splittedTColl1_->end(); ++track, ++j){
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cout<< "Track "<<j<<" : pT = "<<track->pt()<<endl;
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}
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j = 0;
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cout<<"TrackSplitterProducer Looping over splittedTColl2: " <<endl;
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for(TrackCollection::const_iterator track = splittedTColl2_->begin(); track!= splittedTColl2_->end(); ++track, ++j){
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cout<< "Track "<<j<<" : pT = "<<track->pt()<<endl;
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}
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}// End if(debug_)
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// Put Splitted TrackCollection into Event
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iEvent.put(splittedTColl1_, "SplittedTracks1");
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iEvent.put(splittedTColl2_, "SplittedTracks2");
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}
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//DEFINE_FWK_MODULE(TrackSplitterProducer);
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