#include <DTT0Calibration.h>

Inheritance diagram for DTT0Calibration:

Public Member Functions
void	analyze (const edm::Event &event, const edm::EventSetup &eventSetup)
	Fill the maps with t0 (by channel)
	DTT0Calibration (const edm::ParameterSet &pset)
	Constructor.
void	endJob ()
	Compute the mean and the RMS of the t0 from the maps and write them to the DB with channel granularity.
virtual	~DTT0Calibration ()
	Destructor.
Private Member Functions
std::string	getHistoName (const DTWireId &wId) const
std::string	getHistoName (const DTLayerId &lId) const
Private Attributes
std::vector< std::string >	cellsWithHistos
bool	debug
std::string	digiLabel
edm::ESHandle< DTGeometry >	dtGeom
unsigned int	eventsForLayerT0
unsigned int	eventsForWireT0
TH1D *	hT0SectorHisto
std::map< DTWireId, double >	mK
std::map< DTWireId, double >	mK_ref
std::map< DTWireId, int >	nDigiPerWire
std::map< DTWireId, int >	nDigiPerWire_ref
unsigned int	nevents
std::map< DTWireId, double >	qK
unsigned int	rejectDigiFromPeak
int	selSector
int	selWheel
std::map< DTWireId, double >	theAbsoluteT0PerWire
std::string	theCalibSector
std::string	theCalibWheel
TFile *	theFile
std::map< DTLayerId, TH1I * >	theHistoLayerMap
std::map< DTWireId, TH1I * >	theHistoWireMap
std::map< DTWireId, TH1I * >	theHistoWireMap_ref
TFile *	theOutputFile
std::map< DTWireId, double >	theRelativeT0PerWire
std::map< std::string, double >	theSigmaT0LayerMap
std::map< DTWireId, double >	theSigmaT0PerWire
std::map< std::string, double >	theT0LayerMap
double	tpPeakWidth
std::vector< DTWireId >	wireIdWithHistos

Detailed Description

Analyzer class computes the mean and RMS of t0 from pulses. Those values are written in the DB with cell granularity. The mean value for each channel is normalized to a reference time common to all the sector. The t0 of wires in odd layers are corrected for the relative difference between odd and even layers

Date:: 2009/06/11 14:01:57

Revision:: 1.5

Author:: S. Bolognesi - INFN Torino

Definition at line 30 of file DTT0Calibration.h.

Constructor & Destructor Documentation

DTT0Calibration::DTT0Calibration ( const edm::ParameterSet & pset )

Constructor.

Definition at line 29 of file DTT0Calibration.cc.

References gather_cfg::cout, debug, ExpressReco_HICollisions_FallBack::digiLabel, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), nevents, relativeConstraints::station, and interactiveExample::theFile.

                                                            {
  // Get the debug parameter for verbose output
  debug = pset.getUntrackedParameter<bool>("debug");
  if(debug) 
    cout << "[DTT0Calibration]Constructor called!" << endl;

  // Get the label to retrieve digis from the event
  digiLabel = pset.getUntrackedParameter<string>("digiLabel");

  // The root file which contain the histos per layer
  string rootFileName = pset.getUntrackedParameter<string>("rootFileName","DTT0PerLayer.root");
  theFile = new TFile(rootFileName.c_str(), "RECREATE");
 
  theCalibWheel =  pset.getUntrackedParameter<string>("calibWheel", "All"); //FIXME amke a vector of integer instead of a string
  if(theCalibWheel != "All") {
    stringstream linestr;
    int selWheel;
    linestr << theCalibWheel;
    linestr >> selWheel;
    cout << "[DTT0CalibrationPerLayer] chosen wheel " << selWheel << endl;
  }

  // Sector/s to calibrate
  theCalibSector =  pset.getUntrackedParameter<string>("calibSector", "All"); //FIXME amke a vector of integer instead of a string
  if(theCalibSector != "All") {
    stringstream linestr;
    int selSector;
    linestr << theCalibSector;
    linestr >> selSector;
    cout << "[DTT0CalibrationPerLayer] chosen sector " << selSector << endl;
  }

  vector<string> defaultCell;
  defaultCell.push_back("None");
  cellsWithHistos = pset.getUntrackedParameter<vector<string> >("cellsWithHisto", defaultCell);
  for(vector<string>::const_iterator cell = cellsWithHistos.begin(); cell != cellsWithHistos.end(); cell++){
    if((*cell) != "None"){
      stringstream linestr;
      int wheel,sector,station,sl,layer,wire;
      linestr << (*cell);
      linestr >> wheel >> sector >> station >> sl >> layer >> wire;
      wireIdWithHistos.push_back(DTWireId(wheel,station,sector,sl,layer,wire));
    }
  }

  hT0SectorHisto=0;

  nevents=0;
  eventsForLayerT0 = pset.getParameter<unsigned int>("eventsForLayerT0");
  eventsForWireT0 = pset.getParameter<unsigned int>("eventsForWireT0");
  rejectDigiFromPeak = pset.getParameter<unsigned int>("rejectDigiFromPeak");
  tpPeakWidth = pset.getParameter<double>("tpPeakWidth");
}

DTT0Calibration::~DTT0Calibration ( ) [virtual]

Destructor.

Definition at line 84 of file DTT0Calibration.cc.

References gather_cfg::cout, debug, and interactiveExample::theFile.

                                 {
  if(debug) 
    cout << "[DTT0Calibration]Destructor called!" << endl;

  theFile->Close();
}

Member Function Documentation

void DTT0Calibration::analyze	(	const edm::Event &	event,
		const edm::EventSetup &	eventSetup
	)		`[virtual]`

Fill the maps with t0 (by channel)

Perform the real analysis.

Implements edm::EDAnalyzer.

Definition at line 92 of file DTT0Calibration.cc.

References abs, DTSuperLayerId::chamberId(), gather_cfg::cout, debug, ExpressReco_HICollisions_FallBack::digiLabel, edm::EventID::event(), spr::find(), edm::EventSetup::get(), edm::EventBase::id(), nevents, edm::EventID::run(), DTChamberId::sector(), DTLayerId::superlayerId(), interactiveExample::theFile, and DTChamberId::wheel().

                                                                                     {
  if(debug || event.id().event() % 500==0)
    cout << "--- [DTT0Calibration] Analysing Event: #Run: " << event.id().run()
         << " #Event: " << event.id().event() << endl;
  nevents++;

  // Get the digis from the event
  Handle<DTDigiCollection> digis; 
  event.getByLabel(digiLabel, digis);

  // Get the DT Geometry
  eventSetup.get<MuonGeometryRecord>().get(dtGeom);

  // Iterate through all digi collections ordered by LayerId   
  DTDigiCollection::DigiRangeIterator dtLayerIt;
  for (dtLayerIt = digis->begin();
       dtLayerIt != digis->end();
       ++dtLayerIt){
    // Get the iterators over the digis associated with this LayerId
    const DTDigiCollection::Range& digiRange = (*dtLayerIt).second;
  
    // Get the layerId
    const DTLayerId layerId = (*dtLayerIt).first; //FIXME: check to be in the right sector

    if((theCalibWheel != "All") && (layerId.superlayerId().chamberId().wheel() != selWheel))
      continue;
    if((theCalibSector != "All") && (layerId.superlayerId().chamberId().sector() != selSector))
      continue;
 
    //if(debug) {
    //  cout << "Layer " << layerId<<" with "<<distance(digiRange.first, digiRange.second)<<" digi"<<endl;
    //}

    // Loop over all digis in the given layer
    for (DTDigiCollection::const_iterator digi = digiRange.first;
         digi != digiRange.second;
         digi++) {
      double t0 = (*digi).countsTDC();

      //Use first bunch of events to fill t0 per layer
      if(nevents < eventsForLayerT0){
        //Get the per-layer histo from the map
        TH1I *hT0LayerHisto = theHistoLayerMap[layerId];
        //If it doesn't exist, book it
        if(hT0LayerHisto == 0){
          theFile->cd();
          hT0LayerHisto = new TH1I(getHistoName(layerId).c_str(),
                                   "T0 from pulses by layer (TDC counts, 1 TDC count = 0.781 ns)",
                                   200, t0-100, t0+100);
          if(debug)
            cout << "  New T0 per Layer Histo: " << hT0LayerHisto->GetName() << endl;
          theHistoLayerMap[layerId] = hT0LayerHisto;
        }
    
        //Fill the histos
        theFile->cd();
        if(hT0LayerHisto != 0) {
          //  if(debug)
          // cout<<"Filling histo "<<hT0LayerHisto->GetName()<<" with digi "<<t0<<" TDC counts"<<endl;
          hT0LayerHisto->Fill(t0);
        }
      }

      //Use all the remaining events to compute t0 per wire
      if(nevents>eventsForLayerT0){
        // Get the wireId
        const DTWireId wireId(layerId, (*digi).wire());
        if(debug) {
          cout << "   Wire: " << wireId << endl
               << "       time (TDC counts): " << (*digi).countsTDC()<< endl;
        }   

        //Fill the histos per wire for the chosen cells
        vector<DTWireId>::iterator it_wire = find(wireIdWithHistos.begin(),wireIdWithHistos.end(),wireId);
        if(it_wire != wireIdWithHistos.end()){
          if(theHistoWireMap.find(wireId) == theHistoWireMap.end()){
            theHistoWireMap[wireId] = new TH1I(getHistoName(wireId).c_str(),"T0 from pulses by wire (TDC counts, 1 TDC count = 0.781 ns)",7000,0,7000);
            if(debug) cout << "  New T0 per wire Histo: " << (theHistoWireMap[wireId])->GetName() << endl;
          }
          if(theHistoWireMap_ref.find(wireId) == theHistoWireMap_ref.end()){
            theHistoWireMap_ref[wireId] = new TH1I((getHistoName(wireId) + "_ref").c_str(),"T0 from pulses by wire (TDC counts, 1 TDC count = 0.781 ns)",7000,0,7000);
            if(debug) cout << "  New T0 per wire Histo: " << (theHistoWireMap_ref[wireId])->GetName() << endl;
          }

          TH1I* hT0WireHisto = theHistoWireMap[wireId];
          //Fill the histos
          theFile->cd();
          if(hT0WireHisto) hT0WireHisto->Fill(t0);
        }

        //Check the tzero has reasonable value
        if(abs(hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin()) - t0) > rejectDigiFromPeak){
          if(debug)
            cout<<"digi skipped because t0 per sector "<<hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin())<<endl;
          continue;
        }

        //Use second bunch of events to compute a t0 reference per wire
        if(nevents< (eventsForLayerT0 + eventsForWireT0)){
          //Fill reference wire histos
          if(it_wire != wireIdWithHistos.end()){
            TH1I* hT0WireHisto_ref = theHistoWireMap_ref[wireId];
            theFile->cd();
            if(hT0WireHisto_ref) hT0WireHisto_ref->Fill(t0); 
          } 
          if(!nDigiPerWire_ref[wireId]){
            mK_ref[wireId] = 0;
          }
          nDigiPerWire_ref[wireId] = nDigiPerWire_ref[wireId] + 1;
          mK_ref[wireId] = mK_ref[wireId] + (t0-mK_ref[wireId])/nDigiPerWire_ref[wireId];
        }
        //Use last all the remaining events to compute the mean and sigma t0 per wire
        else if(nevents>(eventsForLayerT0 + eventsForWireT0)){
          if(abs(t0-mK_ref[wireId]) > tpPeakWidth)
            continue;
          if(!nDigiPerWire[wireId]){
            theAbsoluteT0PerWire[wireId] = 0;
            qK[wireId] = 0;
            mK[wireId] = 0;
          }
          nDigiPerWire[wireId] = nDigiPerWire[wireId] + 1;
          theAbsoluteT0PerWire[wireId] = theAbsoluteT0PerWire[wireId] + t0;
          //theSigmaT0PerWire[wireId] = theSigmaT0PerWire[wireId] + (t0*t0);
          qK[wireId] = qK[wireId] + ((nDigiPerWire[wireId]-1)*(t0-mK[wireId])*(t0-mK[wireId])/nDigiPerWire[wireId]);
          mK[wireId] = mK[wireId] + (t0-mK[wireId])/nDigiPerWire[wireId];
        }
      }//end if(nevents>1000)
    }//end loop on digi
  }//end loop on layer

  //Use the t0 per layer histos to have an indication about the t0 position 
  if(nevents == eventsForLayerT0){
    for(map<DTLayerId, TH1I*>::const_iterator lHisto = theHistoLayerMap.begin();
        lHisto != theHistoLayerMap.end();
        lHisto++){
      if(debug)
        cout<<"Reading histogram "<<(*lHisto).second->GetName()<<" with mean "<<(*lHisto).second->GetMean()<<" and RMS "<<(*lHisto).second->GetRMS();

      //Take the mean as a first t0 estimation
      if((*lHisto).second->GetRMS()<5.0){
        if(hT0SectorHisto == 0){
          hT0SectorHisto = new TH1D("hT0AllLayerOfSector","T0 from pulses per layer in sector", 
                                    //20, (*lHisto).second->GetMean()-100, (*lHisto).second->GetMean()+100);
                                    700, 0, 7000);
        }
        if(debug)
          cout<<" accepted"<<endl;
        hT0SectorHisto->Fill((*lHisto).second->GetMean());
      }
      //Take the mean of noise + 400ns as a first t0 estimation
      // if((*lHisto).second->GetRMS()>10.0 && ((*lHisto).second->GetRMS()<15.0)){
//      double t0_estim = (*lHisto).second->GetMean() + 400;
//      if(hT0SectorHisto == 0){
//        hT0SectorHisto = new TH1D("hT0AllLayerOfSector","T0 from pulses per layer in sector", 
//                                  //20, t0_estim-100, t0_estim+100);
//                                  700, 0, 7000);
//      }
//      if(debug)
//        cout<<" accepted + 400ns"<<endl;
//      hT0SectorHisto->Fill((*lHisto).second->GetMean() + 400);
//       }
      if(debug)
        cout<<endl;

      theT0LayerMap[(*lHisto).second->GetName()] = (*lHisto).second->GetMean();
      theSigmaT0LayerMap[(*lHisto).second->GetName()] = (*lHisto).second->GetRMS();
    }
    if(!hT0SectorHisto){
      cout<<"[DTT0Calibration]: All the t0 per layer are still uncorrect: trying with greater number of events"<<endl;
      eventsForLayerT0 = eventsForLayerT0*2;
      return;
    }
    if(debug)
      cout<<"[DTT0Calibration] t0 reference for this sector "<<
        hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin())<<endl;
  } 
}

void DTT0Calibration::endJob ( void ) [virtual]

Compute the mean and the RMS of the t0 from the maps and write them to the DB with channel granularity.

Loop on superlayer to correct between even-odd layers (2 different test pulse lines!)

Change t0 absolute reference -> from sector peak to chamber average

Write the t0 map into DB

Reimplemented from edm::EDAnalyzer.

Definition at line 271 of file DTT0Calibration.cc.

References abs, DTT0::begin(), DTTimeUnits::counts, gather_cfg::cout, debug, DTT0::end(), DTT0::set(), mathSSE::sqrt(), interactiveExample::theFile, tzero, and DTCalibDBUtils::writeToDB().

                             {

  DTT0* t0s = new DTT0();
  DTT0* t0sWRTChamber = new DTT0();

  if(debug) 
    cout << "[DTT0CalibrationPerLayer]Writing histos to file!" << endl;

  theFile->cd();
  hT0SectorHisto->Write();
  for(map<DTWireId, TH1I*>::const_iterator wHisto = theHistoWireMap.begin();
      wHisto != theHistoWireMap.end();
      wHisto++) {
    (*wHisto).second->Write(); 
  }
  for(map<DTWireId, TH1I*>::const_iterator wHisto = theHistoWireMap_ref.begin();
      wHisto != theHistoWireMap_ref.end();
      wHisto++) {
    (*wHisto).second->Write();
  }
  for(map<DTLayerId, TH1I*>::const_iterator lHisto = theHistoLayerMap.begin();
      lHisto != theHistoLayerMap.end();
      lHisto++) {
    (*lHisto).second->Write(); 
  }  

  if(debug) 
    cout << "[DTT0Calibration] Compute and store t0 and sigma per wire" << endl;

  for(map<DTWireId, double>::const_iterator wiret0 = theAbsoluteT0PerWire.begin();
      wiret0 != theAbsoluteT0PerWire.end();
      wiret0++){
    if(nDigiPerWire[(*wiret0).first]){
      double t0 = (*wiret0).second/nDigiPerWire[(*wiret0).first];
      theRelativeT0PerWire[(*wiret0).first] = t0 - hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin());
      cout<<"Wire "<<(*wiret0).first<<" has    t0 "<<t0<<"(absolute) "<<theRelativeT0PerWire[(*wiret0).first]<<"(relative)";

      //theSigmaT0PerWire[(*wiret0).first] = sqrt((theSigmaT0PerWire[(*wiret0).first] / nDigiPerWire[(*wiret0).first]) - t0*t0);
      theSigmaT0PerWire[(*wiret0).first] = sqrt(qK[(*wiret0).first]/nDigiPerWire[(*wiret0).first]);
      cout<<"    sigma "<<theSigmaT0PerWire[(*wiret0).first]<<endl;
    }
    else{
      cout<<"[DTT0Calibration] ERROR: no digis in wire "<<(*wiret0).first<<endl;
      abort();
    }
  }

  // Get all the sls from the setup
  const vector<DTSuperLayer*> superLayers = dtGeom->superLayers();     
  // Loop over all SLs
  for(vector<DTSuperLayer*>::const_iterator  sl = superLayers.begin();
      sl != superLayers.end(); sl++) {

  
    //Compute mean for odd and even superlayers
    double oddLayersMean=0;
    double evenLayersMean=0; 
    double oddLayersDen=0;
    double evenLayersDen=0;
    for(map<DTWireId, double>::const_iterator wiret0 = theRelativeT0PerWire.begin();
        wiret0 != theRelativeT0PerWire.end();
        wiret0++){
      if((*wiret0).first.layerId().superlayerId() == (*sl)->id()){
        if(debug)
          cout<<"[DTT0Calibration] Superlayer "<<(*sl)->id()
              <<"layer " <<(*wiret0).first.layerId().layer()<<" with "<<(*wiret0).second<<endl;
        if(((*wiret0).first.layerId().layer()) % 2){
          oddLayersMean = oddLayersMean + (*wiret0).second;
          oddLayersDen++;
        }
        else{
          evenLayersMean = evenLayersMean + (*wiret0).second;
          evenLayersDen++;
        }
      }
    }
    oddLayersMean = oddLayersMean/oddLayersDen;
    evenLayersMean = evenLayersMean/evenLayersDen;
    if(debug && oddLayersMean)
      cout<<"[DTT0Calibration] Relative T0 mean for  odd layers "<<oddLayersMean<<"  even layers"<<evenLayersMean<<endl;

    //Compute sigma for odd and even superlayers
    double oddLayersSigma=0;
    double evenLayersSigma=0;
    for(map<DTWireId, double>::const_iterator wiret0 = theRelativeT0PerWire.begin();
        wiret0 != theRelativeT0PerWire.end();
        wiret0++){
      if((*wiret0).first.layerId().superlayerId() == (*sl)->id()){
        if(((*wiret0).first.layerId().layer()) % 2){
          oddLayersSigma = oddLayersSigma + ((*wiret0).second - oddLayersMean) * ((*wiret0).second - oddLayersMean);
        }
        else{
          evenLayersSigma = evenLayersSigma + ((*wiret0).second - evenLayersMean) * ((*wiret0).second - evenLayersMean);
        }
      }
    }
    oddLayersSigma = oddLayersSigma/oddLayersDen;
    evenLayersSigma = evenLayersSigma/evenLayersDen;
    oddLayersSigma = sqrt(oddLayersSigma);
    evenLayersSigma = sqrt(evenLayersSigma);

    if(debug && oddLayersMean)
      cout<<"[DTT0Calibration] Relative T0 sigma for  odd layers "<<oddLayersSigma<<"  even layers"<<evenLayersSigma<<endl;

    //Recompute the mean for odd and even superlayers discarding fluctations
    double oddLayersFinalMean=0; 
    double evenLayersFinalMean=0;
    for(map<DTWireId, double>::const_iterator wiret0 = theRelativeT0PerWire.begin();
        wiret0 != theRelativeT0PerWire.end();
        wiret0++){
      if((*wiret0).first.layerId().superlayerId() == (*sl)->id()){
        if(((*wiret0).first.layerId().layer()) % 2){
          if(abs((*wiret0).second - oddLayersMean) < (2*oddLayersSigma))
            oddLayersFinalMean = oddLayersFinalMean + (*wiret0).second;
        }
        else{
          if(abs((*wiret0).second - evenLayersMean) < (2*evenLayersSigma))
            evenLayersFinalMean = evenLayersFinalMean + (*wiret0).second;
        }
      }
    }
    oddLayersFinalMean = oddLayersFinalMean/oddLayersDen;
    evenLayersFinalMean = evenLayersFinalMean/evenLayersDen;
    if(debug && oddLayersMean)
      cout<<"[DTT0Calibration] Final relative T0 mean for  odd layers "<<oddLayersFinalMean<<"  even layers"<<evenLayersFinalMean<<endl;

    for(map<DTWireId, double>::const_iterator wiret0 = theRelativeT0PerWire.begin();
        wiret0 != theRelativeT0PerWire.end();
        wiret0++){
      if((*wiret0).first.layerId().superlayerId() == (*sl)->id()){
        double t0=-999;
        if(((*wiret0).first.layerId().layer()) % 2)
          t0 = (*wiret0).second + (evenLayersFinalMean - oddLayersFinalMean);
        else
          t0 = (*wiret0).second;

        cout<<"[DTT0Calibration] Wire "<<(*wiret0).first<<" has    t0 "<<(*wiret0).second<<" (relative, after even-odd layer corrections)  "
            <<"    sigma "<<theSigmaT0PerWire[(*wiret0).first]<<endl;
        //Store the results into DB
        t0s->set((*wiret0).first, t0, theSigmaT0PerWire[(*wiret0).first],DTTimeUnits::counts); 
      }
    }
  }
  
  if(debug) 
    cout << "[DTT0Calibration]Computing relative t0 wrt to chamber average" << endl;
  //Compute the reference for each chamber
  map<DTChamberId,double> sumT0ByChamber;
  map<DTChamberId,int> countT0ByChamber;
  for(DTT0::const_iterator tzero = t0s->begin();
      tzero != t0s->end(); tzero++) {
    DTChamberId chamberId((*tzero).first.wheelId,
                          (*tzero).first.stationId,
                          (*tzero).first.sectorId);
    sumT0ByChamber[chamberId] = sumT0ByChamber[chamberId] + (*tzero).second.t0mean;
    countT0ByChamber[chamberId]++;
  }

  //Change reference for each wire and store the new t0s in the new map
  for(DTT0::const_iterator tzero = t0s->begin();
      tzero != t0s->end(); tzero++) {
    DTChamberId chamberId((*tzero).first.wheelId,
                          (*tzero).first.stationId,
                          (*tzero).first.sectorId);
    double t0mean = ((*tzero).second.t0mean) - (sumT0ByChamber[chamberId]/countT0ByChamber[chamberId]);
    double t0rms = (*tzero).second.t0rms;
    DTWireId wireId((*tzero).first.wheelId,
                    (*tzero).first.stationId,
                    (*tzero).first.sectorId,
                    (*tzero).first.slId,
                    (*tzero).first.layerId,
                    (*tzero).first.cellId);
    t0sWRTChamber->set(wireId,
                       t0mean,
                       t0rms,
                       DTTimeUnits::counts);
    if(debug){
      //cout<<"Chamber "<<chamberId<<" has reference "<<(sumT0ByChamber[chamberId]/countT0ByChamber[chamberId]);
      cout<<"Changing t0 of wire "<<wireId<<" from "<<(*tzero).second.t0mean<<" to "<<t0mean<<endl;
    }
  }

  if(debug) 
   cout << "[DTT0Calibration]Writing values in DB!" << endl;
  // FIXME: to be read from cfg?
  string t0Record = "DTT0Rcd";
  // Write the t0 map to DB
  DTCalibDBUtils::writeToDB(t0Record, t0sWRTChamber);
}

string DTT0Calibration::getHistoName ( const DTWireId & wId ) const [private]

Definition at line 464 of file DTT0Calibration.cc.

References DTLayerId::layer(), DTChamberId::sector(), DTChamberId::station(), DTSuperLayerId::superlayer(), DTChamberId::wheel(), and DTWireId::wire().

                                                              {
  string histoName;
  stringstream theStream;
  theStream << "Ch_" << wId.wheel() << "_" << wId.station() << "_" << wId.sector()
            << "_SL" << wId.superlayer() << "_L" << wId.layer() << "_W"<< wId.wire() <<"_hT0Histo";
  theStream >> histoName;
  return histoName;
}

string DTT0Calibration::getHistoName ( const DTLayerId & lId ) const [private]

Definition at line 473 of file DTT0Calibration.cc.

References DTLayerId::layer(), DTChamberId::sector(), DTChamberId::station(), DTSuperLayerId::superlayer(), and DTChamberId::wheel().

                                                               {
  string histoName;
  stringstream theStream;
  theStream << "Ch_" << lId.wheel() << "_" << lId.station() << "_" << lId.sector()
            << "_SL" << lId.superlayer() << "_L" << lId.layer() <<"_hT0Histo";
  theStream >> histoName;
  return histoName;
}