MultipleAlgoIterator Class Reference

#include <MultipleAlgoIterator.h>

Inheritance diagram for MultipleAlgoIterator:

List of all members.

Public Member Functions
virtual void	calculatePedestal (std::vector< fastjet::PseudoJet > const &coll)
double	getEt (const reco::CandidatePtr &in) const
double	getEta (const reco::CandidatePtr &in) const
	MultipleAlgoIterator (const edm::ParameterSet &iConfig)
virtual void	offsetCorrectJets ()
void	rescaleRMS (double s)
virtual void	subtractPedestal (std::vector< fastjet::PseudoJet > &coll)
	~MultipleAlgoIterator ()
Public Attributes
bool	dropZeroTowers_
bool	sumRecHits_

---

Detailed Description

Definition at line 6 of file MultipleAlgoIterator.h.

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Constructor & Destructor Documentation

MultipleAlgoIterator::MultipleAlgoIterator

(

const edm::ParameterSet &

iConfig

)

[inline]

Definition at line 8 of file MultipleAlgoIterator.h.

                                                        : PileUpSubtractor(iConfig),
     sumRecHits_(iConfig.getParameter<bool>("sumRecHits")),
     dropZeroTowers_(iConfig.getUntrackedParameter<bool>("dropZeroTowers",true))
       {;}

MultipleAlgoIterator::~MultipleAlgoIterator

(

)

[inline]

Definition at line 21 of file MultipleAlgoIterator.h.

{;}

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Member Function Documentation

virtual void MultipleAlgoIterator::calculatePedestal

(

std::vector< fastjet::PseudoJet > const &

coll

)

[virtual]

Reimplemented from PileUpSubtractor.

double MultipleAlgoIterator::getEt

(

const reco::CandidatePtr &

in

)

const

Definition at line 189 of file MultipleAlgoIterator.cc.

References CaloTower::emEnergy(), relval_parameters_module::energy, ExpressReco_HICollisions_FallBack::et, edm::Ptr< T >::get(), CaloTower::hadEnergy(), CaloTower::id(), pos, funct::sin(), and PV3DBase< T, PVType, FrameType >::theta().

                                                                    {
   const CaloTower* ctc = dynamic_cast<const CaloTower*>(in.get());
   const GlobalPoint& pos=geo_->getPosition(ctc->id());
   double energy = ctc->emEnergy() + ctc->hadEnergy();
   double et = energy*sin(pos.theta());
   return et;
}

double MultipleAlgoIterator::getEta

(

const reco::CandidatePtr &

in

)

const

Definition at line 197 of file MultipleAlgoIterator.cc.

References eta(), PV3DBase< T, PVType, FrameType >::eta(), edm::Ptr< T >::get(), CaloTower::id(), and pos.

                                                                     {
   const CaloTower* ctc = dynamic_cast<const CaloTower*>(in.get());
   const GlobalPoint& pos=geo_->getPosition(ctc->id());
   double eta = pos.eta();
   return eta;
}

void MultipleAlgoIterator::offsetCorrectJets

(

)

[virtual]

Reimplemented from PileUpSubtractor.

Definition at line 16 of file MultipleAlgoIterator.cc.

References def, LogDebug, dt_offlineAnalysis_common_cff::reco, and edm::second().

{

  LogDebug("PileUpSubtractor")<<"The subtractor correcting jets...\n";
  jetOffset_.clear();

  using namespace reco;
  
  (*fjInputs_) = fjOriginalInputs_;
  rescaleRMS(nSigmaPU_);
  subtractPedestal(*fjInputs_);
  const fastjet::JetDefinition& def = fjClusterSeq_->jet_def();
  if ( !doAreaFastjet_ && !doRhoFastjet_) {
    fastjet::ClusterSequence newseq( *fjInputs_, def );
    (*fjClusterSeq_) = newseq;
  } else {
    fastjet::ClusterSequenceArea newseq( *fjInputs_, def , *fjActiveArea_ );
    (*fjClusterSeq_) = newseq;
  }
  
  (*fjJets_) = fastjet::sorted_by_pt(fjClusterSeq_->inclusive_jets(jetPtMin_));
  
  jetOffset_.reserve(fjJets_->size());
  
  vector<fastjet::PseudoJet>::iterator pseudojetTMP = fjJets_->begin (),
    jetsEnd = fjJets_->end();
  for (; pseudojetTMP != jetsEnd; ++pseudojetTMP) {
    
    int ijet = pseudojetTMP - fjJets_->begin();
    jetOffset_[ijet] = 0;
    
    std::vector<fastjet::PseudoJet> towers =
      sorted_by_pt(fjClusterSeq_->constituents(*pseudojetTMP));
    
    double newjetet = 0.;
    for(vector<fastjet::PseudoJet>::const_iterator ito = towers.begin(),
          towEnd = towers.end();
        ito != towEnd;
        ++ito)
      {
        const reco::CandidatePtr& originalTower = (*inputs_)[ito->user_index()];
        int it = ieta( originalTower );
        double Original_Et = originalTower->et();
        double etnew = Original_Et - (*emean_.find(it)).second - (*esigma_.find(it)).second;
        if(etnew < 0.) etnew = 0;
        newjetet = newjetet + etnew;
        jetOffset_[ijet] += Original_Et - etnew;
      }
  }
}

void MultipleAlgoIterator::rescaleRMS

(

double

s

)

Definition at line 8 of file MultipleAlgoIterator.cc.

                                             {
   for ( std::map<int, double>::iterator iter = esigma_.begin();
         iter != esigma_.end(); ++iter ){
      iter->second = s*(iter->second);
   }
}

virtual void MultipleAlgoIterator::subtractPedestal

(

std::vector< fastjet::PseudoJet > &

coll

)

[virtual]

Reimplemented from PileUpSubtractor.

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Member Data Documentation

bool MultipleAlgoIterator::dropZeroTowers_

Definition at line 20 of file MultipleAlgoIterator.h.

bool MultipleAlgoIterator::sumRecHits_

Definition at line 19 of file MultipleAlgoIterator.h.