JetAnalysis/src/RecHitTreeProducer.cc

// -*- C++ -*-
//
// Package:    RecHitTreeProducer
// Class:      RecHitTreeProducer
// 
/**\class RecHitTreeProducer RecHitTreeProducer.cc CmsHi/RecHitTreeProducer/src/RecHitTreeProducer.cc

 Description: [one line class summary]

 Implementation:
     [Notes on implementation]
*/
//
// Original Author:  Yetkin Yilmaz
// Modified: Frank Ma
//         Created:  Tue Sep  7 11:38:19 EDT 2010
// $Id: RecHitTreeProducer.cc,v 1.15 2011/10/14 15:06:14 frankma Exp $
//
//

#define versionTag "v1"
// system include files
#include <memory>
#include <vector>
#include <iostream>

// user include files
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/EDAnalyzer.h"

#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include "DataFormats/DetId/interface/DetId.h"
#include "Geometry/CaloGeometry/interface/CaloGeometry.h"
#include "Geometry/Records/interface/IdealGeometryRecord.h"
#include "Geometry/Records/interface/CaloGeometryRecord.h"
#include "DataFormats/GeometryVector/interface/GlobalPoint.h"

#include "CommonTools/UtilAlgos/interface/TFileService.h"
#include "FWCore/ServiceRegistry/interface/Service.h"

#include "DataFormats/Math/interface/deltaR.h"

#include "DataFormats/Common/interface/Handle.h"
#include "DataFormats/FWLite/interface/ChainEvent.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "DataFormats/HeavyIonEvent/interface/CentralityBins.h"
#include "DataFormats/CaloTowers/interface/CaloTower.h"
#include "DataFormats/HeavyIonEvent/interface/Centrality.h"
#include "SimDataFormats/HiGenData/interface/GenHIEvent.h"
#include "DataFormats/PatCandidates/interface/Jet.h"
#include "DataFormats/EcalRecHit/interface/EcalRecHitCollections.h"

#include "DataFormats/EcalRecHit/interface/EcalRecHitCollections.h"
#include "DataFormats/HcalRecHit/interface/HcalRecHitCollections.h"
#include "DataFormats/HcalDetId/interface/HcalDetId.h"
#include "DataFormats/EcalDetId/interface/EcalDetIdCollections.h"
#include "DataFormats/EgammaReco/interface/BasicClusterFwd.h"
#include "DataFormats/DetId/interface/DetId.h"

#include "DataFormats/VertexReco/interface/Vertex.h"
#include "DataFormats/VertexReco/interface/VertexFwd.h"


#include "TNtuple.h"

using namespace std;

#define MAXHITS 1000000

struct MyRecHit{
  int depth[MAXHITS];
  int n;

  float e[MAXHITS];
  float et[MAXHITS];
  float eta[MAXHITS];
  float phi[MAXHITS];
  bool isjet[MAXHITS];
  float etvtx[MAXHITS];
  float etavtx[MAXHITS];
  float emEtVtx[MAXHITS];
  float hadEtVtx[MAXHITS];

   float jtpt;
   float jteta;
   float jtphi;

};


struct MyBkg{
   int n;
   float rho[50];
   float sigma[50];
};


//
// class declaration
//

class RecHitTreeProducer : public edm::EDAnalyzer {
   public:
      explicit RecHitTreeProducer(const edm::ParameterSet&);
      ~RecHitTreeProducer();
  double       getEt(const DetId &id, double energy);
  double       getEta(const DetId &id);
  double       getPhi(const DetId &id);
  reco::Vertex::Point getVtx(const edm::Event& ev);


   private:
      virtual void beginJob() ;
      virtual void analyze(const edm::Event&, const edm::EventSetup&);
      virtual void endJob() ;

      // ----------member data ---------------------------

   edm::Handle<reco::Centrality> cent;
   edm::Handle<vector<double> > ktRhos;
   edm::Handle<vector<double> > akRhos;

  edm::Handle<edm::SortedCollection<EcalRecHit,edm::StrictWeakOrdering<EcalRecHit> > > ebHits;
  edm::Handle<edm::SortedCollection<EcalRecHit,edm::StrictWeakOrdering<EcalRecHit> > > eeHits;

  edm::Handle<HFRecHitCollection> hfHits;
  edm::Handle<HBHERecHitCollection> hbheHits;

   edm::Handle<reco::BasicClusterCollection> bClusters;
   edm::Handle<CaloTowerCollection> towers;
  edm::Handle<reco::VertexCollection> vtxs;

  typedef vector<EcalRecHit>::const_iterator EcalIterator;
  
  edm::Handle<reco::CaloJetCollection> jets;

   edm::Handle<std::vector<double> > rhos;
   edm::Handle<std::vector<double> > sigmas;
  
  MyRecHit hbheRecHit;
  MyRecHit hfRecHit;
  MyRecHit ebRecHit;
  MyRecHit eeRecHit;
   MyRecHit myBC;
   MyRecHit myTowers;
   MyBkg bkg;

  TNtuple* nt;
  TTree* hbheTree;
  TTree* hfTree;
  TTree* ebTree;
  TTree* eeTree;
   TTree* bcTree;
   TTree* towerTree;
   TTree* bkgTree;

  double cone;
  double hfTowerThreshold_;
  double hfLongThreshold_;
  double hfShortThreshold_;
  double hbheThreshold_;
  double ebThreshold_;
  double eeThreshold_;
  
  double hbhePtMin_;
  double hfPtMin_;
  double ebPtMin_;
  double eePtMin_;
  double towerPtMin_;
  
   edm::Service<TFileService> fs;
   const CentralityBins * cbins_;
   const CaloGeometry *geo;

  edm::InputTag HcalRecHitHFSrc_;
  edm::InputTag HcalRecHitHBHESrc_;
  edm::InputTag EBSrc_;
  edm::InputTag EESrc_;
   edm::InputTag BCSrc_;
   edm::InputTag TowerSrc_;
  edm::InputTag VtxSrc_;

  edm::InputTag JetSrc_;

   edm::InputTag FastJetTag_;

  bool useJets_;
   bool doBasicClusters_;
   bool doTowers_;
   bool doEcal_;
   bool doHcal_;
   bool hasVtx_;

   bool doFastJet_;

  bool doEbyEonly_;
};

//
// constants, enums and typedefs
//

//
// static data member definitions
//

//
// constructors and destructor
//
RecHitTreeProducer::RecHitTreeProducer(const edm::ParameterSet& iConfig) :
   cbins_(0),
   geo(0),
   cone(0.5)
{
   //now do what ever initialization is needed
  EBSrc_ = iConfig.getUntrackedParameter<edm::InputTag>("EBRecHitSrc",edm::InputTag("ecalRecHit","EcalRecHitsEB"));
  EESrc_ = iConfig.getUntrackedParameter<edm::InputTag>("EERecHitSrc",edm::InputTag("ecalRecHit","EcalRecHitsEE"));
  HcalRecHitHFSrc_ = iConfig.getUntrackedParameter<edm::InputTag>("hcalHFRecHitSrc",edm::InputTag("hfreco"));
  HcalRecHitHBHESrc_ = iConfig.getUntrackedParameter<edm::InputTag>("hcalHBHERecHitSrc",edm::InputTag("hbhereco"));
  BCSrc_ = iConfig.getUntrackedParameter<edm::InputTag>("BasicClusterSrc1",edm::InputTag("ecalRecHit","EcalRecHitsEB","RECO"));
  TowerSrc_ = iConfig.getUntrackedParameter<edm::InputTag>("towersSrc",edm::InputTag("towerMaker"));
  VtxSrc_ = iConfig.getUntrackedParameter<edm::InputTag>("vtxSrc",edm::InputTag("hiSelectedVertex"));
  JetSrc_ = iConfig.getUntrackedParameter<edm::InputTag>("JetSrc",edm::InputTag("iterativeConePu5CaloJets"));
  useJets_ = iConfig.getUntrackedParameter<bool>("useJets",true);
  doBasicClusters_ = iConfig.getUntrackedParameter<bool>("doBasicClusters",false);
  doTowers_ = iConfig.getUntrackedParameter<bool>("doTowers",true);
  doEcal_ = iConfig.getUntrackedParameter<bool>("doEcal",true);
  doHcal_ = iConfig.getUntrackedParameter<bool>("doHcal",true);
  hasVtx_ = iConfig.getUntrackedParameter<bool>("hasVtx",false);
  doFastJet_ = iConfig.getUntrackedParameter<bool>("doFastJet",true);
  FastJetTag_ = iConfig.getUntrackedParameter<edm::InputTag>("FastJetTag",edm::InputTag("kt4CaloJets"));
  doEbyEonly_ = iConfig.getUntrackedParameter<bool>("doEbyEonly",false);
  hfTowerThreshold_ = iConfig.getUntrackedParameter<double>("HFtowerMin",3.);
  hfLongThreshold_ = iConfig.getUntrackedParameter<double>("HFlongMin",0.5);
  hfShortThreshold_ = iConfig.getUntrackedParameter<double>("HFshortMin",0.85);
  hbhePtMin_ = iConfig.getUntrackedParameter<double>("HBHETreePtMin",0);
  hfPtMin_ = iConfig.getUntrackedParameter<double>("HFTreePtMin",0);
  ebPtMin_ = iConfig.getUntrackedParameter<double>("EBTreePtMin",0);
  eePtMin_ = iConfig.getUntrackedParameter<double>("EETreePtMin",0.);
  towerPtMin_ = iConfig.getUntrackedParameter<double>("TowerTreePtMin",0.);
}


RecHitTreeProducer::~RecHitTreeProducer()
{
 
   // do anything here that needs to be done at desctruction time
   // (e.g. close files, deallocate resources etc.)

}


//
// member functions
//

// ------------ method called to for each event  ------------
void
RecHitTreeProducer::analyze(const edm::Event& ev, const edm::EventSetup& iSetup)
{

  hfRecHit.n = 0;
  hbheRecHit.n = 0;
  ebRecHit.n = 0;
  eeRecHit.n = 0;
  myBC.n = 0;
   myTowers.n = 0;
   bkg.n = 0;

  // get vertex
  reco::Vertex::Point vtx;
  if (hasVtx_) vtx = getVtx(ev);

   if(doEcal_){
  ev.getByLabel(EBSrc_,ebHits);
  ev.getByLabel(EESrc_,eeHits);
   }
  if(doHcal_){
  ev.getByLabel(HcalRecHitHFSrc_,hfHits);
  ev.getByLabel(HcalRecHitHBHESrc_,hbheHits);
  }
  if(useJets_) {
    ev.getByLabel(JetSrc_,jets);
  }

  if(doBasicClusters_){
     ev.getByLabel(BCSrc_,bClusters);
  }

  if(doTowers_){
     ev.getByLabel(TowerSrc_,towers);
  }

  if(doFastJet_){
     ev.getByLabel(edm::InputTag(FastJetTag_.label(),"rhos",FastJetTag_.process()),rhos);
     ev.getByLabel(edm::InputTag(FastJetTag_.label(),"sigmas",FastJetTag_.process()),sigmas);
     bkg.n = rhos->size();
     for(unsigned int i = 0; i < rhos->size(); ++i){
        bkg.rho[i] = (*rhos)[i];
        bkg.sigma[i] = (*sigmas)[i];
     }
  }
  
  if(0 && !cbins_) cbins_ = getCentralityBinsFromDB(iSetup);

   if(!geo){
      edm::ESHandle<CaloGeometry> pGeo;
      iSetup.get<CaloGeometryRecord>().get(pGeo);
      geo = pGeo.product();
   }

   int nHFlongPlus = 0;
   int nHFshortPlus = 0;
   int nHFtowerPlus = 0;
   int nHFlongMinus = 0;
   int nHFshortMinus = 0;
   int nHFtowerMinus = 0;


   if(doHcal_){
   for(unsigned int i = 0; i < hfHits->size(); ++i){
     const HFRecHit & hit= (*hfHits)[i];
     hfRecHit.e[hfRecHit.n] = hit.energy();
     hfRecHit.et[hfRecHit.n] = getEt(hit.id(),hit.energy());
     hfRecHit.eta[hfRecHit.n] = getEta(hit.id());
     hfRecHit.phi[hfRecHit.n] = getPhi(hit.id());
     hfRecHit.isjet[hfRecHit.n] = false;
     hfRecHit.depth[hfRecHit.n] = hit.id().depth();

     if(hit.id().ieta() > 0){
     if(hit.energy() > hfShortThreshold_ && hit.id().depth() != 1) nHFshortPlus++;
     if(hit.energy() > hfLongThreshold_ && hit.id().depth() == 1) nHFlongPlus++;
     }else{
       if(hit.energy() > hfShortThreshold_ && hit.id().depth() != 1) nHFshortMinus++;
       if(hit.energy() > hfLongThreshold_ && hit.id().depth() == 1) nHFlongMinus++;
     }

     if(useJets_){
       for(unsigned int j = 0 ; j < jets->size(); ++j){
         const reco::Jet& jet = (*jets)[j];
         double dr = reco::deltaR(hfRecHit.eta[hfRecHit.n],hfRecHit.phi[hfRecHit.n],jet.eta(),jet.phi());
         if(dr < cone){ hfRecHit.isjet[hfRecHit.n] = true; }
       }
     }
     if (hfRecHit.et[hfRecHit.n]>=hfPtMin_) hfRecHit.n++;
   }
   if(!doEbyEonly_){
   for(unsigned int i = 0; i < hbheHits->size(); ++i){
     const HBHERecHit & hit= (*hbheHits)[i];
     if (getEt(hit.id(),hit.energy())<hbhePtMin_) continue;
     hbheRecHit.e[hbheRecHit.n] = hit.energy();
     hbheRecHit.et[hbheRecHit.n] = getEt(hit.id(),hit.energy());
     hbheRecHit.eta[hbheRecHit.n] = getEta(hit.id());
     hbheRecHit.phi[hbheRecHit.n] = getPhi(hit.id());
     hbheRecHit.isjet[hbheRecHit.n] = false; 
     if(useJets_){
       for(unsigned int j = 0 ; j < jets->size(); ++j){
         const reco::Jet& jet = (*jets)[j];
         double dr = reco::deltaR(hbheRecHit.eta[hbheRecHit.n],hbheRecHit.phi[hbheRecHit.n],jet.eta(),jet.phi());
         if(dr < cone){ hbheRecHit.isjet[hbheRecHit.n] = true; }
       }
     }
     hbheRecHit.n++;
   }
   }
   }
   if(doEcal_ && !doEbyEonly_){
   for(unsigned int i = 0; i < ebHits->size(); ++i){
     const EcalRecHit & hit= (*ebHits)[i];
     if (getEt(hit.id(),hit.energy())<ebPtMin_) continue;
     ebRecHit.e[ebRecHit.n] = hit.energy();
     ebRecHit.et[ebRecHit.n] = getEt(hit.id(),hit.energy());
     ebRecHit.eta[ebRecHit.n] = getEta(hit.id());
     ebRecHit.phi[ebRecHit.n] = getPhi(hit.id());
     ebRecHit.isjet[ebRecHit.n] = false;
     if(useJets_){
       for(unsigned int j = 0 ; j < jets->size(); ++j){
         const reco::Jet& jet = (*jets)[j];
         double dr = reco::deltaR(ebRecHit.eta[ebRecHit.n],ebRecHit.phi[ebRecHit.n],jet.eta(),jet.phi());
         if(dr < cone){ ebRecHit.isjet[ebRecHit.n] = true; }
       }
     }
     ebRecHit.n++;
   }
   
   for(unsigned int i = 0; i < eeHits->size(); ++i){
     const EcalRecHit & hit= (*eeHits)[i];
     if (getEt(hit.id(),hit.energy())<eePtMin_) continue;
     eeRecHit.e[eeRecHit.n] = hit.energy();
     eeRecHit.et[eeRecHit.n] = getEt(hit.id(),hit.energy());
     eeRecHit.eta[eeRecHit.n] = getEta(hit.id());
     eeRecHit.phi[eeRecHit.n] = getPhi(hit.id());
     eeRecHit.isjet[eeRecHit.n] = false;
     if(useJets_){
       for(unsigned int j = 0 ; j < jets->size(); ++j){
         const reco::Jet& jet = (*jets)[j];
         double dr = reco::deltaR(eeRecHit.eta[eeRecHit.n],eeRecHit.phi[eeRecHit.n],jet.eta(),jet.phi());
         if(dr < cone){ eeRecHit.isjet[eeRecHit.n] = true; }
       }
     }
     eeRecHit.n++;
   }
   }

   if(doTowers_){

      for(unsigned int i = 0; i < towers->size(); ++i){
      const CaloTower & hit= (*towers)[i];
      if (getEt(hit.id(),hit.energy())<towerPtMin_) continue;
      myTowers.e[myTowers.n] = hit.energy();
      myTowers.et[myTowers.n] = getEt(hit.id(),hit.energy());
      myTowers.eta[myTowers.n] = getEta(hit.id());
      myTowers.phi[myTowers.n] = getPhi(hit.id());
      myTowers.isjet[myTowers.n] = false;
      if (hasVtx_) {
        myTowers.etvtx[myTowers.n] = hit.p4(vtx).Et();
        myTowers.etavtx[myTowers.n] = hit.p4(vtx).Eta();
        myTowers.emEtVtx[myTowers.n] = hit.emEt(vtx);
        myTowers.hadEtVtx[myTowers.n] = hit.hadEt(vtx);
      }

      if(hit.ieta() > 29 && hit.energy() > hfTowerThreshold_) nHFtowerPlus++;
      if(hit.ieta() < -29 && hit.energy() > hfTowerThreshold_) nHFtowerMinus++;

      if(useJets_){
         for(unsigned int j = 0 ; j < jets->size(); ++j){
            const reco::Jet& jet = (*jets)[j];
            double dr = reco::deltaR(myTowers.eta[myTowers.n],myTowers.phi[myTowers.n],jet.eta(),jet.phi());
            if(dr < cone){ myTowers.isjet[myTowers.n] = true; }
         }
      }
      myTowers.n++;
      }

   }

   if(doBasicClusters_ && !doEbyEonly_){
      for(unsigned int j = 0 ; j < jets->size(); ++j){
         const reco::Jet& jet = (*jets)[j];
         myBC.n = 0;
         myBC.jtpt = jet.pt();
         myBC.jteta = jet.eta();
         myBC.jtphi = jet.phi();

         for(unsigned int i = 0; i < bClusters->size(); ++i){
            const reco::BasicCluster & bc= (*bClusters)[i];
            double dr = reco::deltaR(bc.eta(),bc.phi(),jet.eta(),jet.phi());
            if(dr < cone){ 
               myBC.e[myBC.n] = bc.energy();
               myBC.et[myBC.n] = bc.energy()*sin(bc.position().theta());
               myBC.eta[myBC.n] = bc.eta();
               myBC.phi[myBC.n] = bc.phi();
               myBC.n++; 
            }
         }
         bcTree->Fill(); 
      }
   }

   if(!doEbyEonly_){
     towerTree->Fill();
     
     eeTree->Fill();
     ebTree->Fill();
     
     hbheTree->Fill();
     hfTree->Fill();
      
     if (doFastJet_) {
       bkgTree->Fill();
     }
   }

   nt->Fill(nHFtowerPlus,nHFtowerMinus,nHFlongPlus,nHFlongMinus,nHFshortPlus,nHFshortMinus);
   
}


// ------------ method called once each job just before starting event loop  ------------
void 
RecHitTreeProducer::beginJob()
{
  
  hbheTree = fs->make<TTree>("hbhe",versionTag);
  hbheTree->Branch("n",&hbheRecHit.n,"n/I");
  hbheTree->Branch("e",hbheRecHit.e,"e[n]/F");
  hbheTree->Branch("et",hbheRecHit.et,"et[n]/F");
  hbheTree->Branch("eta",hbheRecHit.eta,"eta[n]/F");
  hbheTree->Branch("phi",hbheRecHit.phi,"phi[n]/F");
  hbheTree->Branch("isjet",hbheRecHit.isjet,"isjet[n]/O");
  
  hfTree = fs->make<TTree>("hf",versionTag);
  hfTree->Branch("n",&hfRecHit.n,"n/I");
  hfTree->Branch("e",hfRecHit.e,"e[n]/F");
  hfTree->Branch("et",hfRecHit.et,"et[n]/F");
  hfTree->Branch("eta",hfRecHit.eta,"eta[n]/F");
  hfTree->Branch("phi",hfRecHit.phi,"phi[n]/F");
  hfTree->Branch("depth",hfRecHit.depth,"depth[n]/I");
  hfTree->Branch("isjet",hfRecHit.isjet,"isjet[n]/O");

  eeTree = fs->make<TTree>("ee",versionTag);
  eeTree->Branch("n",&eeRecHit.n,"n/I");
  eeTree->Branch("e",eeRecHit.e,"e[n]/F");
  eeTree->Branch("et",eeRecHit.et,"et[n]/F");
  eeTree->Branch("eta",eeRecHit.eta,"eta[n]/F");
  eeTree->Branch("phi",eeRecHit.phi,"phi[n]/F");
  eeTree->Branch("isjet",eeRecHit.isjet,"isjet[n]/O");
 
  ebTree = fs->make<TTree>("eb",versionTag);
  ebTree->Branch("n",&ebRecHit.n,"n/I");
  ebTree->Branch("e",ebRecHit.e,"e[n]/F");
  ebTree->Branch("et",ebRecHit.et,"et[n]/F");
  ebTree->Branch("eta",ebRecHit.eta,"eta[n]/F");
  ebTree->Branch("phi",ebRecHit.phi,"phi[n]/F");
  ebTree->Branch("isjet",ebRecHit.isjet,"isjet[n]/O");

  towerTree = fs->make<TTree>("tower",versionTag);
  towerTree->Branch("n",&myTowers.n,"n/I");
  towerTree->Branch("e",myTowers.e,"e[n]/F");
  towerTree->Branch("et",myTowers.et,"et[n]/F");
  towerTree->Branch("eta",myTowers.eta,"eta[n]/F");
  towerTree->Branch("phi",myTowers.phi,"phi[n]/F");
  towerTree->Branch("isjet",myTowers.isjet,"isjet[n]/O");
  if (hasVtx_) {
    towerTree->Branch("etvtx",myTowers.etvtx,"etvtx[n]/F");
    towerTree->Branch("etavtx",myTowers.etavtx,"etavtx[n]/F");
    towerTree->Branch("emEtVtx",myTowers.emEtVtx,"emEtVtx[n]/F");
    towerTree->Branch("hadEtVtx",myTowers.hadEtVtx,"hadEtVtx[n]/F");
  }


  if(doBasicClusters_){
     bcTree = fs->make<TTree>("bc",versionTag);
     bcTree->Branch("n",&myBC.n,"n/I");
     bcTree->Branch("e",myBC.e,"e[n]/F");
     bcTree->Branch("et",myBC.et,"et[n]/F");
     bcTree->Branch("eta",myBC.eta,"eta[n]/F");
     bcTree->Branch("phi",myBC.phi,"phi[n]/F");
     bcTree->Branch("jtpt",&myBC.jtpt,"jtpt/F");
     bcTree->Branch("jteta",&myBC.jteta,"jteta/F");
     bcTree->Branch("jtphi",&myBC.jtphi,"jtphi/F");
     //     bcTree->Branch("isjet",bcRecHit.isjet,"isjet[n]/O");
  }

  if(doFastJet_){
     bkgTree = fs->make<TTree>("bkg",versionTag);
     bkgTree->Branch("n",&bkg.n,"n/I");
     bkgTree->Branch("rho",bkg.rho,"rho[n]/F");
     bkgTree->Branch("sigma",bkg.sigma,"sigma[n]/F");
  }
  
  nt = fs->make<TNtuple>("ntEvent","","nHFplus:nHFminus:nHFlongPlus:nHFlongMinus:nHFshortPlus:nHFshortMinus");

}

// ------------ method called once each job just after ending the event loop  ------------
void 
RecHitTreeProducer::endJob() {
}

double RecHitTreeProducer::getEt(const DetId &id, double energy){
  const GlobalPoint& pos=geo->getPosition(id);
  double et = energy*sin(pos.theta());
  return et;
}

double RecHitTreeProducer::getEta(const DetId &id){
  const GlobalPoint& pos=geo->getPosition(id);
  double et = pos.eta();
  return et;
}

double RecHitTreeProducer::getPhi(const DetId &id){
  const GlobalPoint& pos=geo->getPosition(id);
  double et = pos.phi();
  return et;
}

reco::Vertex::Point RecHitTreeProducer::getVtx(const edm::Event& ev)
{
  ev.getByLabel(VtxSrc_,vtxs);
  int greatestvtx = 0;
  int nVertex = vtxs->size();
  
  for (unsigned int i = 0 ; i< vtxs->size(); ++i){
    unsigned int daughter = (*vtxs)[i].tracksSize();
    if( daughter > (*vtxs)[greatestvtx].tracksSize()) greatestvtx = i;
    //cout <<"Vertex: "<< (*vtxs)[i].position().z()<<" "<<daughter<<endl;
  }
  
  if(nVertex<=0){
    return reco::Vertex::Point(-999,-999,-999);
  }
  return (*vtxs)[greatestvtx].position();
}

//define this as a plug-in
DEFINE_FWK_MODULE(RecHitTreeProducer);
Revision:	1.16
Committed:	Tue Oct 25 13:41:08 2011 UTC (13 years, 6 months ago) by yjlee
Content type:	text/plain
Branch:	MAIN
Changes since 1.15:	+9 -9 lines
Log Message:	Add version tag