EvtPlaneProducer.cc

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// -*- C++ -*-
//
// Package:    EvtPlaneProducer
// Class:      EvtPlaneProducer
// 
//
// Original Author:  Sergey Petrushanko
//         Created:  Fri Jul 11 10:05:00 2008
//
//

// system include files
#include <memory>
#include <iostream>
#include <ctime>
#include <cmath>

// user include files
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/stream/EDProducer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"

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

#include "DataFormats/Candidate/interface/Candidate.h"
#include "DataFormats/HeavyIonEvent/interface/EvtPlane.h"
#include "DataFormats/RecoCandidate/interface/RecoChargedCandidate.h"
#include "DataFormats/RecoCandidate/interface/RecoChargedCandidateFwd.h"


#include "DataFormats/HcalRecHit/interface/HcalRecHitCollections.h"
#include "DataFormats/Common/interface/Ref.h"

#include "DataFormats/Common/interface/Handle.h"
#include "DataFormats/CaloTowers/interface/CaloTowerCollection.h"
#include "DataFormats/CastorReco/interface/CastorTower.h"

#include "FWCore/ServiceRegistry/interface/Service.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/VertexReco/interface/Vertex.h"
#include "DataFormats/VertexReco/interface/VertexFwd.h"
#include <cstdlib>
#include "RecoHI/HiEvtPlaneAlgos/interface/HiEvtPlaneList.h"
#include "CondFormats/HIObjects/interface/RPFlatParams.h"
#include "CondFormats/DataRecord/interface/HeavyIonRPRcd.h"
#include "CondFormats/DataRecord/interface/HeavyIonRcd.h"
#include "CondFormats/HIObjects/interface/CentralityTable.h"

#include "DataFormats/Math/interface/Point3D.h"
#include "DataFormats/Common/interface/RefProd.h"
#include "DataFormats/Common/interface/Ref.h"
#include "DataFormats/Common/interface/RefVector.h"

#include "RecoHI/HiEvtPlaneAlgos/interface/HiEvtPlaneFlatten.h"
#include "RecoHI/HiEvtPlaneAlgos/interface/LoadEPDB.h"

using namespace std;
using namespace hi;

//
// class decleration
//

namespace hi {
  class GenPlane {
  public:
    GenPlane(string name,double etaminval1,double etamaxval1,double etaminval2,double etamaxval2,int orderval){
      epname=name;
      etamin1=etaminval1;
      etamax1=etamaxval1;
      etamin2=etaminval2;
      etamax2=etamaxval2;
      sumsin=0;
      sumcos=0;
      sumsinNoWgt=0;
      sumcosNoWgt=0;

      mult = 0;
      order = (double) orderval;
    }
    ~GenPlane(){;}
    void addParticle(double w, double PtOrEt, double s, double c, double eta) {
      if((eta>=etamin1 && eta<etamax1) || 
     (etamin2!= etamax2 && eta>=etamin2 && eta<etamax2 )) {
    sumsin+=w*s;
    sumcos+=w*c;
    sumsinNoWgt+=s;
    sumcosNoWgt+=c;

    sumw+=fabs(w);
    sumw2+=w*w;
    sumPtOrEt+=PtOrEt;
    sumPtOrEt2+=PtOrEt*PtOrEt;
    ++mult;
      }
    }

    double getAngle(double &ang, double &sv, double &cv, double &svNoWgt, double &cvNoWgt,  double &w, double &w2, double &PtOrEt, double &PtOrEt2, uint &epmult){
      ang = -10;
      sv = 0;
      cv = 0;
      sv = sumsin;
      cv = sumcos;
      svNoWgt = sumsinNoWgt;
      cvNoWgt = sumcosNoWgt;
      w = sumw;
      w2 = sumw2;
      PtOrEt = sumPtOrEt;
      PtOrEt2 = sumPtOrEt2;
      epmult = mult;
      double q = sv*sv+cv*cv;
      if(q>0) ang = atan2(sv,cv)/order;
      return ang;
    }
    void reset() {
      sumsin=0;
      sumcos=0;
      sumsinNoWgt = 0;
      sumcosNoWgt = 0;
      sumw = 0;
      sumw2 = 0;
      mult = 0;
      sumPtOrEt = 0;
      sumPtOrEt2 = 0;
    }
  private:
    string epname;
    double etamin1;
    double etamax1;

    double etamin2;
    double etamax2;
    double sumsin;
    double sumcos;
    double sumsinNoWgt;
    double sumcosNoWgt;
    uint mult;
    double sumw;
    double sumw2;
    double sumPtOrEt;
    double sumPtOrEt2;
    double order;
  };
}

class EvtPlaneProducer : public edm::stream::EDProducer<> {
public:
  explicit EvtPlaneProducer(const edm::ParameterSet&);
  ~EvtPlaneProducer() override;

private:
  GenPlane *rp[NumEPNames];

  void produce(edm::Event&, const edm::EventSetup&) override;

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

  std::string centralityVariable_;
  std::string centralityLabel_;
  std::string centralityMC_;

  edm::InputTag centralityBinTag_;
  edm::EDGetTokenT<int> centralityBinToken;


  edm::InputTag vertexTag_;
  edm::EDGetTokenT<std::vector<reco::Vertex>> vertexToken;
  edm::Handle<std::vector<reco::Vertex>> vertex_;

  edm::InputTag caloTag_;
  edm::EDGetTokenT<CaloTowerCollection> caloToken;
  edm::Handle<CaloTowerCollection> caloCollection_;

  edm::InputTag castorTag_;
  edm::EDGetTokenT<std::vector<reco::CastorTower>> castorToken;
  edm::Handle<std::vector<reco::CastorTower>> castorCollection_;

  edm::InputTag trackTag_;
  edm::EDGetTokenT<reco::TrackCollection> trackToken;
  edm::Handle<reco::TrackCollection> trackCollection_;

  edm::ESWatcher<HeavyIonRcd> hiWatcher;
  edm::ESWatcher<HeavyIonRPRcd> hirpWatcher;

  bool loadDB_;
  double minet_;
  double maxet_;
  double minpt_;
  double maxpt_;
  double minvtx_;
  double maxvtx_;
  double dzerr_;
  double chi2_;
  int FlatOrder_;
  int NumFlatBins_;
  double nCentBins_;
  double caloCentRef_;
  double caloCentRefWidth_;
  int CentBinCompression_;
  HiEvtPlaneFlatten * flat[NumEPNames];
};

EvtPlaneProducer::EvtPlaneProducer(const edm::ParameterSet& iConfig):
  centralityVariable_ ( iConfig.getParameter<std::string>("centralityVariable") ),
  centralityBinTag_ ( iConfig.getParameter<edm::InputTag>("centralityBinTag") ),
  vertexTag_  ( iConfig.getParameter<edm::InputTag>("vertexTag") ),
  caloTag_ ( iConfig.getParameter<edm::InputTag>("caloTag") ),
  castorTag_ ( iConfig.getParameter<edm::InputTag>("castorTag") ),
  trackTag_ ( iConfig.getParameter<edm::InputTag>("trackTag") ),
  loadDB_ ( iConfig.getParameter<bool>("loadDB") ),
  minet_ ( iConfig.getParameter<double>("minet") ),
  maxet_ ( iConfig.getParameter<double>("maxet") ),
  minpt_ ( iConfig.getParameter<double>("minpt") ),
  maxpt_ ( iConfig.getParameter<double>("maxpt") ),
  minvtx_ ( iConfig.getParameter<double>("minvtx") ),
  maxvtx_ ( iConfig.getParameter<double>("maxvtx") ),
  dzerr_ ( iConfig.getParameter<double>("dzerr") ),
  chi2_  ( iConfig.getParameter<double>("chi2") ),
  FlatOrder_ ( iConfig.getParameter<int>("FlatOrder") ),
  NumFlatBins_ ( iConfig.getParameter<int>("NumFlatBins") ),
  caloCentRef_ ( iConfig.getParameter<double>("caloCentRef") ),
  caloCentRefWidth_ ( iConfig.getParameter<double>("caloCentRefWidth") ),
  CentBinCompression_ ( iConfig.getParameter<int>("CentBinCompression") )
{

  nCentBins_ = 200.;

  if(iConfig.exists("nonDefaultGlauberModel")){
    centralityMC_ = iConfig.getParameter<std::string>("nonDefaultGlauberModel");
  }
  centralityLabel_ = centralityVariable_+centralityMC_;

  centralityBinToken = consumes<int>(centralityBinTag_);

  vertexToken = consumes<std::vector<reco::Vertex>>(vertexTag_);

  caloToken = consumes<CaloTowerCollection>(caloTag_);

  castorToken = consumes<std::vector<reco::CastorTower>>(castorTag_);

  trackToken = consumes<reco::TrackCollection>(trackTag_);

  produces<reco::EvtPlaneCollection>();
  for(int i = 0; i<NumEPNames; i++ ) {
    rp[i] = new GenPlane(EPNames[i],EPEtaMin1[i],EPEtaMax1[i],EPEtaMin2[i],EPEtaMax2[i],EPOrder[i]);
  }
  for(int i = 0; i<NumEPNames; i++) {
    flat[i] = new HiEvtPlaneFlatten();
    flat[i]->init(FlatOrder_,NumFlatBins_,EPNames[i],EPOrder[i]);
  }

}


EvtPlaneProducer::~EvtPlaneProducer()
{

  // do anything here that needs to be done at desctruction time
  // (e.g. close files, deallocate resources etc.)
  for(int i = 0; i<NumEPNames; i++) {
    delete flat[i];
  }

}


//
// member functions
//

// ------------ method called to produce the data  ------------
void
EvtPlaneProducer::produce(edm::Event& iEvent, const edm::EventSetup& iSetup)
{
  using namespace edm;
  using namespace std;
  using namespace reco;

  if( loadDB_ && (hiWatcher.check(iSetup) || hirpWatcher.check(iSetup)) ) {
    //
    //Get Size of Centrality Table
    //
    edm::ESHandle<CentralityTable> centDB_;
    iSetup.get<HeavyIonRcd>().get(centralityLabel_,centDB_);
    nCentBins_ = centDB_->m_table.size();
    for(int i = 0; i<NumEPNames; i++) {
      if(caloCentRef_>0) {
    int minbin = (caloCentRef_-caloCentRefWidth_/2.)*nCentBins_/100.;
    int maxbin = (caloCentRef_+caloCentRefWidth_/2.)*nCentBins_/100.;
    minbin/=CentBinCompression_;
    maxbin/=CentBinCompression_;
    if(minbin>0 && maxbin>=minbin) {
      if(EPDet[i]==HF || EPDet[i]==Castor) flat[i]->setCaloCentRefBins(minbin,maxbin);
    }
      }
    }

    //
    //Get flattening parameter file.  
    //
    if ( loadDB_ ) {
    edm::ESHandle<RPFlatParams> flatparmsDB_;
    iSetup.get<HeavyIonRPRcd>().get(flatparmsDB_);
    LoadEPDB db(flatparmsDB_,flat);
    if(!db.IsSuccess()) {
      loadDB_ = kFALSE;
    }
    }

  } //rp record change

  //
  //Get Centrality
  //
  int bin = 0;
  if(loadDB_) {
    edm::Handle<int> cbin_;
    iEvent.getByToken(centralityBinToken, cbin_);
    int cbin = *cbin_;
    bin = cbin/CentBinCompression_;
  }
  //
  //Get Vertex
  //
  int vs_sell = 0.;
  float vzr_sell;
  iEvent.getByToken(vertexToken,vertex_);
  const reco::VertexCollection * vertices3 = nullptr;
  if ( vertex_.isValid() ) {
    vertices3 = vertex_.product();
    vs_sell = vertices3->size();
  }
  if(vs_sell>0) {
    vzr_sell = vertices3->begin()->z();
  } else
    vzr_sell = -999.9;
  //
  for(int i = 0; i<NumEPNames; i++) rp[i]->reset();
  if(vzr_sell<minvtx_ or vzr_sell>maxvtx_) return;

    //calorimetry part

    double tower_eta, tower_phi;
    double tower_energyet, tower_energyet_e, tower_energyet_h;

    iEvent.getByToken(caloToken,caloCollection_);

    if(caloCollection_.isValid()){
      for (CaloTowerCollection::const_iterator j = caloCollection_->begin();j !=caloCollection_->end(); j++) {
    tower_eta        = j->eta();
    tower_phi        = j->phi();
    tower_energyet_e   = j->emEt();
    tower_energyet_h   = j->hadEt();
    tower_energyet     = tower_energyet_e + tower_energyet_h;
    double minet = minet_;
    double maxet = maxet_;
    for(int i = 0; i<NumEPNames; i++) {
      if(minet_<0) minet = minTransverse[i];
      if(maxet_<0) maxet = maxTransverse[i];
      if(tower_energyet<minet) continue;
      if(tower_energyet>maxet) continue;
      if(EPDet[i]==HF) {
        double w = tower_energyet;
        if(loadDB_) w = tower_energyet*flat[i]->getEtScale(vzr_sell,bin);
        if(EPOrder[i]==1 ) {
          if(MomConsWeight[i][0]=='y' && loadDB_ ) {
        w = flat[i]->getW(tower_energyet, vzr_sell, bin);
          }
          if(tower_eta<0 ) w=-w;
        }
        rp[i]->addParticle(w,tower_energyet,sin(EPOrder[i]*tower_phi),cos(EPOrder[i]*tower_phi),tower_eta);
      }
    }
      }
    }

    //Castor part


    iEvent.getByToken(castorToken,castorCollection_);

    if(castorCollection_.isValid()){
      for (std::vector<reco::CastorTower>::const_iterator j = castorCollection_->begin();j !=castorCollection_->end(); j++) {
        tower_eta        = j->eta();
        tower_phi        = j->phi();
        tower_energyet     = j->et();
    double minet = minet_;
    double maxet = maxet_;
        for(int i = 0; i<NumEPNames; i++) {
          if(EPDet[i]==Castor) {
        if(minet_<0) minet = minTransverse[i];
        if(maxet_<0) maxet = maxTransverse[i];
        if(tower_energyet<minet) continue;
        if(tower_energyet>maxet) continue;
            double w = tower_energyet;
            if(EPOrder[i]==1 ) {
              if(MomConsWeight[i][0]=='y' && loadDB_ ) {
            w = flat[i]->getW(tower_energyet, vzr_sell, bin);
              }
              if(tower_eta<0 ) w=-w;
            }
            rp[i]->addParticle(w,tower_energyet,sin(EPOrder[i]*tower_phi),cos(EPOrder[i]*tower_phi),tower_eta);
          }
        }
      }
    }

    //Tracking part

    double track_eta;
    double track_phi;
    double track_pt;

    double vzErr2 =0.0, vxyErr=0.0;
    math::XYZPoint vtxPoint(0.0,0.0,0.0);
    if(vertex_.isValid() && !vertex_->empty()) {
        vtxPoint=vertex_->begin()->position();
        vzErr2= (vertex_->begin()->zError())*(vertex_->begin()->zError());
        vxyErr=vertex_->begin()->xError() * vertex_->begin()->yError();
    }

    iEvent.getByToken(trackToken, trackCollection_);
    if(trackCollection_.isValid()){
      for(reco::TrackCollection::const_iterator j = trackCollection_->begin(); j != trackCollection_->end(); j++){
    bool accepted = true;
    bool isPixel = false;
    // determine if the track is a pixel track
    if ( j->numberOfValidHits() < 7 ) isPixel = true;

    // determine the vertex significance 
    double d0=0.0, dz=0.0, d0sigma=0.0, dzsigma=0.0;
    d0 = -1.*j->dxy(vtxPoint);
    dz = j->dz(vtxPoint);
    d0sigma = sqrt(j->d0Error()*j->d0Error()+vxyErr);
    dzsigma = sqrt(j->dzError()*j->dzError()+vzErr2);

    // cuts for pixel tracks
    if( isPixel ){
      // dz significance cut 
      if ( fabs(dz/dzsigma) > dzerr_ ) accepted = false;
      // chi2/ndof cut 
      if ( j->normalizedChi2() > chi2_ ) accepted = false;
    }
    // cuts for full tracks
    if ( ! isPixel) {
      // dz and d0 significance cuts 
      if ( fabs(dz/dzsigma) > 3 ) accepted = false;
      if ( fabs(d0/d0sigma) > 3 ) accepted = false;
      // pt resolution cut
      if ( j->ptError()/j->pt() > 0.1 ) accepted = false;
      // number of valid hits cut
      if ( j->numberOfValidHits() < 12 ) accepted = false;
    }
    if( accepted ) {
      track_eta = j->eta();
      track_phi = j->phi();
      track_pt = j->pt();
      double minpt = minpt_;
      double maxpt = maxpt_;
      for(int i = 0; i<NumEPNames; i++) {
        if(minpt_<0) minpt = minTransverse[i];
        if(maxpt_<0) maxpt = maxTransverse[i];
        if(track_pt<minpt) continue;
        if(track_pt>maxpt) continue;
        if(EPDet[i]==Tracker) {
          double w = track_pt;
          if(w>2.5) w=2.0;   //v2 starts decreasing above ~2.5 GeV/c
          if(EPOrder[i]==1) {
        if(MomConsWeight[i][0]=='y' && loadDB_) {
          w = flat[i]->getW(track_pt, vzr_sell, bin);
        }
        if(track_eta<0) w=-w;
          }
          rp[i]->addParticle(w,track_pt,sin(EPOrder[i]*track_phi),cos(EPOrder[i]*track_phi),track_eta);
        }
      }
    }
      } //end for
    }

    auto evtplaneOutput = std::make_unique<EvtPlaneCollection>();

    double ang=-10;
    double sv = 0;
    double cv = 0;
    double svNoWgt = 0;
    double cvNoWgt = 0;

    double wv = 0;
    double wv2 = 0;
    double pe = 0;
    double pe2 = 0;
    uint epmult = 0;

    for(int i = 0; i<NumEPNames; i++) {
      rp[i]->getAngle(ang,sv,cv,svNoWgt, cvNoWgt, wv,wv2,pe,pe2,epmult);
      evtplaneOutput->push_back( EvtPlane(i,0,ang,sv,cv,wv,wv2,pe,pe2,epmult) );
      evtplaneOutput->back().addLevel(3, 0., svNoWgt, cvNoWgt);
    }

    iEvent.put(std::move(evtplaneOutput));
}

//define this as a plug-in
DEFINE_FWK_MODULE(EvtPlaneProducer);