HcalRecHitsValidation.cc

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#include "Validation/HcalRecHits/interface/HcalRecHitsValidation.h"
#include "Geometry/Records/interface/CaloGeometryRecord.h"
#include "Geometry/HcalCommonData/interface/HcalDDDRecConstants.h"
#include "Geometry/HcalTowerAlgo/interface/HcalGeometry.h"
#include "DataFormats/HcalDetId/interface/HcalSubdetector.h"
#include "Geometry/HcalCommonData/interface/HcalHitRelabeller.h"

HcalRecHitsValidation::HcalRecHitsValidation(edm::ParameterSet const& conf) 
  : topFolderName_ (conf.getParameter<std::string>("TopFolderName"))
{
  // DQM ROOT output
  outputFile_ = conf.getUntrackedParameter<std::string>("outputFile", "myfile.root");
  
  if ( !outputFile_.empty() ) {
    edm::LogInfo("OutputInfo") << " Hcal RecHit Task histograms will be saved to '" << outputFile_.c_str() << "'";
  } else {
    edm::LogInfo("OutputInfo") << " Hcal RecHit Task histograms will NOT be saved";
  }
  
  nevtot = 0;
  
  hcalselector_ = conf.getUntrackedParameter<std::string>("hcalselector", "all");
  ecalselector_ = conf.getUntrackedParameter<std::string>("ecalselector", "yes");
  sign_         = conf.getUntrackedParameter<std::string>("sign", "*");
  mc_           = conf.getUntrackedParameter<std::string>("mc", "yes");
  testNumber_   = conf.getParameter<bool>("TestNumber");

  //Collections
  tok_hbhe_ = consumes<HBHERecHitCollection>(conf.getUntrackedParameter<edm::InputTag>("HBHERecHitCollectionLabel"));
  tok_hf_   = consumes<HFRecHitCollection>(conf.getUntrackedParameter<edm::InputTag>("HFRecHitCollectionLabel"));
  tok_ho_   = consumes<HORecHitCollection>(conf.getUntrackedParameter<edm::InputTag>("HORecHitCollectionLabel"));

  // register for data access
  tok_evt_ = consumes<edm::HepMCProduct>(edm::InputTag("generatorSmeared"));
  edm::InputTag EBRecHitCollectionLabel = conf.getParameter<edm::InputTag>("EBRecHitCollectionLabel");
  tok_EB_ = consumes<EBRecHitCollection>(EBRecHitCollectionLabel);
  edm::InputTag EERecHitCollectionLabel = conf.getParameter<edm::InputTag>("EERecHitCollectionLabel");
  tok_EE_ = consumes<EERecHitCollection>(EERecHitCollectionLabel);

  tok_hh_ = consumes<edm::PCaloHitContainer>(conf.getUntrackedParameter<edm::InputTag>("SimHitCollectionLabel"));

  subdet_ = 5;
  if (hcalselector_ == "noise") subdet_ = 0;
  if (hcalselector_ == "HB"   ) subdet_ = 1;
  if (hcalselector_ == "HE"   ) subdet_ = 2;
  if (hcalselector_ == "HO"   ) subdet_ = 3;
  if (hcalselector_ == "HF"   ) subdet_ = 4;
  if (hcalselector_ == "all"  ) subdet_ = 5;
  if (hcalselector_ == "ZS"   ) subdet_ = 6;

  iz = 1;
  if(sign_ == "-") iz = -1;
  if(sign_ == "*") iz = 0;

  imc = 1;
  if(mc_ == "no") imc = 0;

}


HcalRecHitsValidation::~HcalRecHitsValidation() { }

void HcalRecHitsValidation::bookHistograms(DQMStore::IBooker &ib, edm::Run const &run, edm::EventSetup const &es )
{

  Char_t histo[200];

  ib.setCurrentFolder(topFolderName_);

    //======================= Now various cases one by one ===================

    //Histograms drawn for single pion scan
    if(subdet_ != 0 && imc != 0) { // just not for noise  
      sprintf (histo, "HcalRecHitTask_En_rechits_cone_profile_vs_ieta_all_depths");
      meEnConeEtaProfile = ib.bookProfile(histo, histo, 83, -41.5, 41.5, -100., 2000., " ");  
      
      sprintf (histo, "HcalRecHitTask_En_rechits_cone_profile_vs_ieta_all_depths_E");
      meEnConeEtaProfile_E = ib.bookProfile(histo, histo, 83, -41.5, 41.5, -100., 2000., " ");  
      
      sprintf (histo, "HcalRecHitTask_En_rechits_cone_profile_vs_ieta_all_depths_EH");
      meEnConeEtaProfile_EH = ib.bookProfile(histo, histo, 83, -41.5, 41.5, -100., 2000., " ");  
    }

    // ************** HB **********************************
    if (subdet_ == 1 || subdet_ == 5 ){


      sprintf (histo, "HcalRecHitTask_M2Log10Chi2_of_rechits_HB" ) ;   //   Chi2
      meRecHitsM2Chi2HB = ib.book1D(histo, histo, 120 , -2. , 10.);       

      sprintf (histo, "HcalRecHitTask_Log10Chi2_vs_energy_profile_HB" ) ;
      meLog10Chi2profileHB = ib.bookProfile(histo, histo, 300, -5., 295., -2., 9.9, " ");


      sprintf (histo, "HcalRecHitTask_energy_of_rechits_HB" ) ;
      meRecHitsEnergyHB = ib.book1D(histo, histo, 2010 , -10. , 2000.); 
      
      sprintf (histo, "HcalRecHitTask_timing_vs_energy_profile_HB" ) ;
      meTEprofileHB = ib.bookProfile(histo, histo, 150, -5., 295., -48., 92., " "); 

      sprintf (histo, "HcalRecHitTask_timing_vs_energy_profile_Low_HB" ) ;
      meTEprofileHB_Low = ib.bookProfile(histo, histo, 150, -5., 295., -48., 92., " "); 

      sprintf (histo, "HcalRecHitTask_timing_vs_energy_profile_High_HB" ) ;
      meTEprofileHB_High = ib.bookProfile(histo, histo, 150, -5., 295., 48., 92., " "); 

      if(imc != 0) {
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_HB");
        meRecHitSimHitHB = ib.book2D(histo, histo, 120, 0., 1.2,  300, 0., 150.);
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_profile_HB");
        meRecHitSimHitProfileHB = ib.bookProfile(histo, histo, 120, 0., 1.2, 0., 500., " ");  
      } 

    }
    
    // ********************** HE ************************************
    if ( subdet_ == 2 || subdet_ == 5 ){


      sprintf (histo, "HcalRecHitTask_M2Log10Chi2_of_rechits_HE" ) ;   //   Chi2
      meRecHitsM2Chi2HE = ib.book1D(histo, histo, 120 , -2. , 10.);       

      sprintf (histo, "HcalRecHitTask_Log10Chi2_vs_energy_profile_HE" ) ;
      meLog10Chi2profileHE = ib.bookProfile(histo, histo, 1000, -5., 995., -2., 9.9, " ");


      sprintf (histo, "HcalRecHitTask_energy_of_rechits_HE" ) ;
      meRecHitsEnergyHE = ib.book1D(histo, histo, 2010, -10., 2000.);
      
      sprintf (histo, "HcalRecHitTask_timing_vs_energy_profile_Low_HE" ) ;
      meTEprofileHE_Low = ib.bookProfile(histo, histo, 80, -5., 75., -48., 92., " "); 

      sprintf (histo, "HcalRecHitTask_timing_vs_energy_profile_HE" ) ;
      meTEprofileHE = ib.bookProfile(histo, histo, 200, -5., 2995., -48., 92., " "); 
      
      if(imc != 0) {
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_HE");
        meRecHitSimHitHE = ib.book2D(histo, histo, 120, 0., 0.6,  300, 0., 150.);
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_profile_HE");
        meRecHitSimHitProfileHE = ib.bookProfile(histo, histo, 120, 0., 0.6, 0., 500., " ");  
      }

    }

    // ************** HO ****************************************
    if ( subdet_ == 3 || subdet_ == 5  ){

      sprintf (histo, "HcalRecHitTask_energy_of_rechits_HO" ) ;
      meRecHitsEnergyHO = ib.book1D(histo, histo, 2010 , -10. , 2000.);
      
      sprintf (histo, "HcalRecHitTask_timing_vs_energy_profile_HO" ) ;
      meTEprofileHO = ib.bookProfile(histo, histo, 60, -5., 55., -48., 92., " "); 

      sprintf (histo, "HcalRecHitTask_timing_vs_energy_profile_High_HO" ) ;
      meTEprofileHO_High = ib.bookProfile(histo, histo, 100, -5., 995., -48., 92., " "); 
      
      if(imc != 0) {
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_HO");
        meRecHitSimHitHO = ib.book2D(histo, histo, 150, 0., 1.5,  350, 0., 350.);
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_profile_HO");
        meRecHitSimHitProfileHO = ib.bookProfile(histo, histo, 150, 0., 1.5, 0., 500., " ");  
      }

    }   
  
    // ********************** HF ************************************
    if ( subdet_ == 4 || subdet_ == 5 ){

      sprintf (histo, "HcalRecHitTask_energy_of_rechits_HF" ) ;
      meRecHitsEnergyHF = ib.book1D(histo, histo, 2010 , -10. , 2000.); 
      
      sprintf (histo, "HcalRecHitTask_timing_vs_energy_profile_Low_HF" ) ;
      meTEprofileHF_Low = ib.bookProfile(histo, histo, 100, -5., 195., -48., 92., " "); 

      sprintf (histo, "HcalRecHitTask_timing_vs_energy_profile_HF" ) ;
      meTEprofileHF = ib.bookProfile(histo, histo, 200, -5., 995., -48., 92., " "); 

      if(imc != 0) {
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_HF");
        meRecHitSimHitHF  = ib.book2D(histo, histo, 50, 0., 50., 150, 0., 150.);      
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_HFL");
        meRecHitSimHitHFL = ib.book2D(histo, histo, 50, 0., 50., 150, 0., 150.);      
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_HFS");
        meRecHitSimHitHFS = ib.book2D(histo, histo, 50, 0., 50., 150, 0., 150.);
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_profile_HF");
        meRecHitSimHitProfileHF  = ib.bookProfile(histo, histo, 50, 0., 50., 0., 500., " ");  
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_profile_HFL");
        meRecHitSimHitProfileHFL = ib.bookProfile(histo, histo, 50, 0., 50., 0., 500., " ");  
        sprintf (histo, "HcalRecHitTask_energy_rechits_vs_simhits_profile_HFS");
        meRecHitSimHitProfileHFS = ib.bookProfile(histo, histo, 50, 0., 50., 0., 500., " ");  
      }

    }

}

void HcalRecHitsValidation::analyze(edm::Event const& ev, edm::EventSetup const& c) {

  using namespace edm;

  edm::ESHandle<HcalDDDRecConstants> pHRNDC;
  c.get<HcalRecNumberingRecord>().get( pHRNDC );
  const HcalDDDRecConstants* hcons = &(*pHRNDC);

  // cuts for each subdet_ector mimiking  "Scheme B"
  //  double cutHB = 0.9, cutHE = 1.4, cutHO = 1.1, cutHFL = 1.2, cutHFS = 1.8; 

  // energy in HCAL
  double eHcal        = 0.;
  double eHcalCone    = 0.;  
  double eHcalConeHB  = 0.;  
  double eHcalConeHE  = 0.;  
  double eHcalConeHO  = 0.;  
  double eHcalConeHF  = 0.;  
  double eHcalConeHFL = 0.;  
  double eHcalConeHFS = 0.;  

  // Total numbet of RecHits in HCAL, in the cone, above 1 GeV theshold
  int nrechits       = 0;
  int nrechitsCone   = 0;
  int nrechitsThresh = 0;

  // energy in ECAL
  double eEcal       = 0.;
  double eEcalB      = 0.;
  double eEcalE      = 0.;
  double eEcalCone   = 0.;
  int numrechitsEcal = 0;

  // MC info 
  double phi_MC = -999999.;  // phi of initial particle from HepMC
  double eta_MC = -999999.;  // eta of initial particle from HepMC

  // HCAL energy around MC eta-phi at all depths;
  double partR = 0.3;

  if(imc != 0) { 

     edm::Handle<edm::HepMCProduct> evtMC;
     ev.getByToken(tok_evt_,evtMC);  // generator in late 310_preX
     if (!evtMC.isValid()) {
        edm::LogInfo("HcalRecHitsValidation") << "no HepMCProduct found";    
     } else {
        //    std::cout << "*** source HepMCProduct found"<< std::endl;
     }  

     // MC particle with highest pt is taken as a direction reference  
     double maxPt = -99999.;
     int npart    = 0;
     const HepMC::GenEvent * myGenEvent = evtMC->GetEvent();
     for ( HepMC::GenEvent::particle_const_iterator p = myGenEvent->particles_begin(); p != myGenEvent->particles_end(); ++p ) {
       double phip = (*p)->momentum().phi();
       double etap = (*p)->momentum().eta();
       //    phi_MC = phip;
       //    eta_MC = etap;
       double pt  = (*p)->momentum().perp();
       if(pt > maxPt) { npart++; maxPt = pt; phi_MC = phip; eta_MC = etap; }
     }
     //  std::cout << "*** Max pT = " << maxPt <<  std::endl;  

  }

  //   std::cout << "*** 2" << std::endl; 

  c.get<CaloGeometryRecord>().get (geometry);

  // Fill working vectors of HCAL RecHits quantities (all of these are drawn)
  fillRecHitsTmp(subdet_, ev); 

  //  std::cout << "*** 3" << std::endl; 

  //===========================================================================
  // IN ALL other CASES : ieta-iphi maps 
  //===========================================================================

  // ECAL 
  if(ecalselector_ == "yes" && (subdet_ == 1 || subdet_ == 2 || subdet_ == 5)) {
    Handle<EBRecHitCollection> rhitEB;

    EcalRecHitCollection::const_iterator RecHit;
    EcalRecHitCollection::const_iterator RecHitEnd;
    

    if ( ev.getByToken(tok_EB_, rhitEB) ) {

      RecHit = rhitEB.product()->begin();  
      RecHitEnd = rhitEB.product()->end();  
    
      for (; RecHit != RecHitEnd ; ++RecHit) {
    EBDetId EBid = EBDetId(RecHit->id());
       
    auto cellGeometry = geometry->getSubdetectorGeometry(EBid)->getGeometry (EBid) ;
    double eta = cellGeometry->getPosition ().eta () ;
    double phi = cellGeometry->getPosition ().phi () ;
    double en  = RecHit->energy();
    eEcal  += en;
    eEcalB += en;
    
    double r   = dR(eta_MC, phi_MC, eta, phi);
    if( r < partR)  {
      eEcalCone += en;
      numrechitsEcal++; 
    }
      }
      
    }

    Handle<EERecHitCollection> rhitEE;
 
    if ( ev.getByToken(tok_EE_, rhitEE) ) {
      
      RecHit = rhitEE.product()->begin();  
      RecHitEnd = rhitEE.product()->end();  
      
      for (; RecHit != RecHitEnd ; ++RecHit) {
    EEDetId EEid = EEDetId(RecHit->id());
    
    auto cellGeometry = geometry->getSubdetectorGeometry(EEid)->getGeometry (EEid) ;
    double eta = cellGeometry->getPosition ().eta () ;
    double phi = cellGeometry->getPosition ().phi () ;  
    double en   = RecHit->energy();
    eEcal  += en;
    eEcalE += en;
    
    double r   = dR(eta_MC, phi_MC, eta, phi);
    if( r < partR)  {
      eEcalCone += en;
      numrechitsEcal++; 
    }
      }
    }
  }     // end of ECAL selection 


  //     std::cout << "*** 4" << std::endl; 


  //===========================================================================
  // SUBSYSTEMS,  
  //===========================================================================
  
  if ((subdet_ != 6) && (subdet_ != 0)) {

    //       std::cout << "*** 6" << std::endl; 
    
    
    double HcalCone    = 0.;

    int ietaMax   =  9999;
    double etaMax =  9999.;


    //   CYCLE over cells ====================================================

    for (unsigned int i = 0; i < cen.size(); i++) {
      int sub    = csub[i];
      int depth  = cdepth[i];
      double eta = ceta[i]; 
      double phi = cphi[i]; 
      double en  = cen[i]; 
      double t   = ctime[i];
      int   ieta = cieta[i];
      double chi2 = cchi2[i];

      double chi2_log10 = 9.99;                // initial value above histos limits , keep it if chi2 <= 0.
      if (chi2 > 0.) chi2_log10 = log10(chi2);

      nrechits++;       
      eHcal += en;
      if(en > 1. ) nrechitsThresh++;

      double r    = dR(eta_MC, phi_MC, eta, phi);
      if( r < partR ){
        if(sub == 1)   eHcalConeHB += en;
        if(sub == 2)   eHcalConeHE += en;
        if(sub == 3)   eHcalConeHO += en;
        if(sub == 4) {
      eHcalConeHF += en;
      if (depth == 1) eHcalConeHFL += en;
      else            eHcalConeHFS += en;
    }
    eHcalCone += en;
    nrechitsCone++;

        HcalCone += en;

        // alternative: ietamax -> closest to MC eta  !!!
    float eta_diff = fabs(eta_MC - eta);
    if(eta_diff < etaMax) {
      etaMax  = eta_diff; 
          ietaMax = ieta; 
    }
      }
      
      //The energy and overall timing histos are drawn while
      //the ones split by depth are not
      if(sub == 1 && (subdet_ == 1 || subdet_ == 5)) {  

        meRecHitsM2Chi2HB->Fill(chi2_log10);
        meLog10Chi2profileHB->Fill(en,chi2_log10);

    meRecHitsEnergyHB->Fill(en);
    
    meTEprofileHB_Low->Fill(en, t);
    meTEprofileHB->Fill(en, t);
    meTEprofileHB_High->Fill(en, t);

      }     
      if(sub == 2 && (subdet_ == 2 || subdet_ == 5)) {  


        meRecHitsM2Chi2HE->Fill(chi2_log10);
        meLog10Chi2profileHE->Fill(en,chi2_log10);


    meRecHitsEnergyHE->Fill(en);

    meTEprofileHE_Low->Fill(en, t);
    meTEprofileHE->Fill(en, t);

      }
      if(sub == 4 && (subdet_ == 4 || subdet_ == 5)) {  
    meRecHitsEnergyHF->Fill(en);      

    meTEprofileHF_Low->Fill(en, t);
    meTEprofileHF->Fill(en, t);

      }
      if(sub == 3 && (subdet_ == 3 || subdet_ == 5)) {  
    meRecHitsEnergyHO->Fill(en);

    meTEprofileHO->Fill(en, t);
    meTEprofileHO_High->Fill(en, t);
      }
    }

    if(imc != 0) {
      meEnConeEtaProfile       ->Fill(double(ietaMax),  HcalCone);   // 
      meEnConeEtaProfile_E     ->Fill(double(ietaMax), eEcalCone);   
      meEnConeEtaProfile_EH    ->Fill(double(ietaMax),  HcalCone+eEcalCone); 
    }

    //     std::cout << "*** 7" << std::endl; 

    
  }

  //SimHits vs. RecHits
  const CaloGeometry* geo = geometry.product();
  if(subdet_ > 0 && subdet_ < 6 && imc !=0) {  // not noise 

    edm::Handle<PCaloHitContainer> hcalHits;
    if ( ev.getByToken(tok_hh_,hcalHits) ) {
      const PCaloHitContainer * SimHitResult = hcalHits.product () ;
      
      double enSimHits    = 0.;
      double enSimHitsHB  = 0.;
      double enSimHitsHE  = 0.;
      double enSimHitsHO  = 0.;
      double enSimHitsHF  = 0.;
      double enSimHitsHFL = 0.;
      double enSimHitsHFS = 0.;
      // sum of SimHits in the cone 
      
      for (std::vector<PCaloHit>::const_iterator SimHits = SimHitResult->begin () ; SimHits != SimHitResult->end(); ++SimHits) {
    
    int sub, depth;
    HcalDetId cell; 
    
    if (testNumber_) cell = HcalHitRelabeller::relabel(SimHits->id(),hcons);
    else cell = HcalDetId(SimHits->id());
    
    sub          = cell.subdet();
    depth        = cell.depth();
    
    if(sub != subdet_ && subdet_ != 5) continue; //If we are not looking at all of the subdetectors and the simhit doesn't come from the specific subdetector of interest, then we won't do any thing with it 
    
    const HcalGeometry* cellGeometry = 
      dynamic_cast<const HcalGeometry*>(geo->getSubdetectorGeometry(DetId::Hcal,cell.subdet()));
    double etaS = cellGeometry->getPosition(cell).eta () ;
    double phiS = cellGeometry->getPosition(cell).phi () ;
    double en   = SimHits->energy();    
    
    double r  = dR(eta_MC, phi_MC, etaS, phiS);
    
    if ( r < partR ){ // just energy in the small cone
      
      enSimHits += en;
      if(sub == static_cast<int>(HcalBarrel)) enSimHitsHB += en; 
      if(sub == static_cast<int>(HcalEndcap)) enSimHitsHE += en; 
      if(sub == static_cast<int>(HcalOuter)) enSimHitsHO += en; 
      if(sub == static_cast<int>(HcalForward)) {
        enSimHitsHF += en;
        if(depth == 1) enSimHitsHFL += en;
        else           enSimHitsHFS += en;
      } 
    }
      }
      
      // Now some histos with SimHits
      
      if(subdet_ == 4 || subdet_ == 5) {
    meRecHitSimHitHF->Fill( enSimHitsHF, eHcalConeHF );
    meRecHitSimHitProfileHF->Fill( enSimHitsHF, eHcalConeHF);
    
    meRecHitSimHitHFL->Fill( enSimHitsHFL, eHcalConeHFL );
    meRecHitSimHitProfileHFL->Fill( enSimHitsHFL, eHcalConeHFL);
    meRecHitSimHitHFS->Fill( enSimHitsHFS, eHcalConeHFS );
    meRecHitSimHitProfileHFS->Fill( enSimHitsHFS, eHcalConeHFS);       
      }
      if(subdet_ == 1  || subdet_ == 5) { 
    meRecHitSimHitHB->Fill( enSimHitsHB,eHcalConeHB );
    meRecHitSimHitProfileHB->Fill( enSimHitsHB,eHcalConeHB);
      }
      if(subdet_ == 2  || subdet_ == 5) { 
    meRecHitSimHitHE->Fill( enSimHitsHE,eHcalConeHE );
    meRecHitSimHitProfileHE->Fill( enSimHitsHE,eHcalConeHE);
      }
      if(subdet_ == 3  || subdet_ == 5) { 
    meRecHitSimHitHO->Fill( enSimHitsHO,eHcalConeHO );
    meRecHitSimHitProfileHO->Fill( enSimHitsHO,eHcalConeHO);
      }
    
    }
  }

  nevtot++;
}


void HcalRecHitsValidation::fillRecHitsTmp(int subdet_, edm::Event const& ev){

  using namespace edm;
  
  // initialize data vectors
  csub.clear();
  cen.clear();
  ceta.clear();
  cphi.clear();
  ctime.clear();
  cieta.clear();
  ciphi.clear();
  cdepth.clear();
  cz.clear();
  cchi2.clear();

  if( subdet_ == 1 || subdet_ == 2  || subdet_ == 5 || subdet_ == 6 || subdet_ == 0) {
    
    //HBHE
    edm::Handle<HBHERecHitCollection> hbhecoll;
    if ( ev.getByToken(tok_hbhe_, hbhecoll) ) {
      const CaloGeometry* geo = geometry.product();
      
      for (HBHERecHitCollection::const_iterator j=hbhecoll->begin(); j != hbhecoll->end(); j++) {
    
    HcalDetId cell(j->id());
    const HcalGeometry* cellGeometry = 
      dynamic_cast<const HcalGeometry*>(geo->getSubdetectorGeometry(DetId::Hcal,cell.subdet()));
    double eta  = cellGeometry->getPosition(cell).eta () ;
    double phi  = cellGeometry->getPosition(cell).phi () ;
    double zc   = cellGeometry->getPosition(cell).z ();
    int sub     = cell.subdet();
    int depth   = cell.depth();
    int inteta  = cell.ieta();
    int intphi  = cell.iphi()-1;
    double en   = j->energy();
    double t    = j->time();
        double chi2 = j->chi2();
    
    if((iz > 0 && eta > 0.) || (iz < 0 && eta <0.) || iz == 0) { 
      
      csub.push_back(sub);
      cen.push_back(en);
      ceta.push_back(eta);
      cphi.push_back(phi);
      ctime.push_back(t);
      cieta.push_back(inteta);
      ciphi.push_back(intphi);
      cdepth.push_back(depth);
      cz.push_back(zc);
      cchi2.push_back(chi2);

    }
      }
    }
    
  }

  if( subdet_ == 4 || subdet_ == 5 || subdet_ == 6 || subdet_ == 0) {

    //HF
    edm::Handle<HFRecHitCollection> hfcoll;
    if ( ev.getByToken(tok_hf_, hfcoll) ) {
      
      for (HFRecHitCollection::const_iterator j = hfcoll->begin(); j != hfcoll->end(); j++) {
    
    HcalDetId cell(j->id());
    auto cellGeometry = geometry->getSubdetectorGeometry(cell)->getGeometry (cell) ;
    
    double eta   = cellGeometry->getPosition().eta () ;
    double phi   = cellGeometry->getPosition().phi () ;
    double zc     = cellGeometry->getPosition().z ();
    int sub      = cell.subdet();
    int depth    = cell.depth();
    int inteta   = cell.ieta();
    int intphi   = cell.iphi()-1;
    double en    = j->energy();
    double t     = j->time();
    
    if((iz > 0 && eta > 0.) || (iz < 0 && eta <0.) || iz == 0) { 
      
      csub.push_back(sub);
      cen.push_back(en);
      ceta.push_back(eta);
      cphi.push_back(phi);
      ctime.push_back(t);
      cieta.push_back(inteta);
      ciphi.push_back(intphi);
      cdepth.push_back(depth);
      cz.push_back(zc);
      cchi2.push_back(0.);
    }
      }
    }
  }

  //HO
  if( subdet_ == 3 || subdet_ == 5 || subdet_ == 6 || subdet_ == 0) {
  
    edm::Handle<HORecHitCollection> hocoll;
    if ( ev.getByToken(tok_ho_, hocoll) ) {
    
      for (HORecHitCollection::const_iterator j = hocoll->begin(); j != hocoll->end(); j++) {
    
    HcalDetId cell(j->id());
    auto cellGeometry = geometry->getSubdetectorGeometry(cell)->getGeometry (cell) ;
    
    double eta   = cellGeometry->getPosition().eta () ;
    double phi   = cellGeometry->getPosition().phi () ;
    double zc    = cellGeometry->getPosition().z ();
    int sub      = cell.subdet();
    int depth    = cell.depth();
    int inteta   = cell.ieta();
    int intphi   = cell.iphi()-1;
    double t     = j->time();
    double en    = j->energy();
    
    if((iz > 0 && eta > 0.) || (iz < 0 && eta <0.) || iz == 0) { 
      csub.push_back(sub);
      cen.push_back(en);
      ceta.push_back(eta);
      cphi.push_back(phi);
      ctime.push_back(t);
      cieta.push_back(inteta);
      ciphi.push_back(intphi);
      cdepth.push_back(depth);
      cz.push_back(zc);
      cchi2.push_back(0.);
    }
      }
    }
  }
}

double HcalRecHitsValidation::dR(double eta1, double phi1, double eta2, double phi2) { 
  double PI = 3.1415926535898;
  double deltaphi= phi1 - phi2;
  if( phi2 > phi1 ) { deltaphi= phi2 - phi1;}
  if(deltaphi > PI) { deltaphi = 2.*PI - deltaphi;}
  double deltaeta = eta2 - eta1;
  double tmp = sqrt(deltaeta* deltaeta + deltaphi*deltaphi);
  return tmp;
}

double HcalRecHitsValidation::phi12(double phi1, double en1, double phi2, double en2) {
  // weighted mean value of phi1 and phi2
  
  double tmp;
  double PI = 3.1415926535898;
  double a1 = phi1; double a2  = phi2;

  if( a1 > 0.5*PI  && a2 < 0.) a2 += 2*PI; 
  if( a2 > 0.5*PI  && a1 < 0.) a1 += 2*PI; 
  tmp = (a1 * en1 + a2 * en2)/(en1 + en2);
  if(tmp > PI) tmp -= 2.*PI; 
 
  return tmp;

}

double HcalRecHitsValidation::dPhiWsign(double phi1, double phi2) {
  // clockwise      phi2 w.r.t phi1 means "+" phi distance
  // anti-clockwise phi2 w.r.t phi1 means "-" phi distance 

  double PI = 3.1415926535898;
  double a1 = phi1; double a2  = phi2;
  double tmp =  a2 - a1;
  if( a1*a2 < 0.) {
    if(a1 > 0.5 * PI)  tmp += 2.*PI;
    if(a2 > 0.5 * PI)  tmp -= 2.*PI;
  }
  return tmp;

}


DEFINE_FWK_MODULE(HcalRecHitsValidation);