#include <DTTTrigResidualCorrection.h>

Inheritance diagram for DTTTrigResidualCorrection:

Public Member Functions
virtual DTTTrigData	correction (const DTSuperLayerId &)

	DTTTrigResidualCorrection (const edm::ParameterSet &)

virtual void	setES (const edm::EventSetup &setup)

virtual	~DTTTrigResidualCorrection ()

Public Member Functions inherited from DTTTrigBaseCorrection
	DTTTrigBaseCorrection ()

virtual	~DTTTrigBaseCorrection ()

Private Member Functions
const TH1F *	getHisto (const DTSuperLayerId &)

std::string	getHistoName (const DTSuperLayerId &slID)

Private Attributes
std::string	dbLabel_

const DTMtime *	mTimeMap_

std::string	rootBaseDir_

TFile *	rootFile_

const DTTtrig *	tTrigMap_

bool	useFit_

bool	useSlopesCalib_

double	vDriftEff_ [5][14][4][3]

Detailed Description

Concrete implementation of a DTTTrigBaseCorrection. Computes residual correction for tTrig

Revision:: 1.3

Author: A. Vilela Pereira

Definition at line 26 of file DTTTrigResidualCorrection.h.

Constructor & Destructor Documentation

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

Definition at line 40 of file DTTTrigResidualCorrection.cc.

References edm::FileInPath::fullPath(), edm::ParameterSet::getParameter(), and edm::ParameterSet::getUntrackedParameter().

                                                                              {
   string residualsRootFile = pset.getParameter<string>("residualsRootFile");
   rootFile_ = new TFile(residualsRootFile.c_str(),"READ");
   rootBaseDir_ = pset.getUntrackedParameter<string>("rootBaseDir","/DQMData/DT/DTCalibValidation"); 
   useFit_ = pset.getParameter<bool>("useFitToResiduals");
   //useConstantvDrift_ = pset.getParameter<bool>("useConstantDriftVelocity");
   dbLabel_  = pset.getUntrackedParameter<string>("dbLabel", "");
   useSlopesCalib_ = pset.getUntrackedParameter<bool>("useSlopesCalib",false);
 
   // Load external slopes
   if(useSlopesCalib_){ 
      ifstream fileSlopes; 
      fileSlopes.open( pset.getParameter<FileInPath>("slopesFileName").fullPath().c_str() );
      //fin.open("slopesDB.txt");
 
      int tmp_wheel = 0;
      int tmp_sector = 0;
      int tmp_station = 0;
      int tmp_SL = 0;
      double tmp_ttrig = 0.;
      double tmp_t0 = 0.;
      double tmp_kfact = 0.;
      int tmp_a = 0;
      int tmp_b = 0;
      int tmp_c = 0;
      int tmp_d = 0;
      double tmp_v_eff = 0.;
 
      while(!fileSlopes.eof()){
 
         fileSlopes >> tmp_wheel >> tmp_sector >> tmp_station >> tmp_SL  >> tmp_a >> tmp_b >>
                       tmp_ttrig >> tmp_t0 >> tmp_kfact >> tmp_c >> tmp_d >> tmp_v_eff;
 
         vDriftEff_[tmp_wheel+2][tmp_sector-1][tmp_station-1][tmp_SL-1] = -tmp_v_eff;
 
      }
 
      fileSlopes.close();
   } 
 
 }

DTTTrigResidualCorrection::~DTTTrigResidualCorrection ( )

virtual

Definition at line 82 of file DTTTrigResidualCorrection.cc.

                                                       {
   delete rootFile_;
 }

Member Function Documentation

DTTTrigData DTTTrigResidualCorrection::correction ( const DTSuperLayerId & slId )

virtual

Implements DTTTrigBaseCorrection.

Definition at line 100 of file DTTTrigResidualCorrection.cc.

References DTVelocityUnits::cm_per_ns, edm::hlt::Exception, cropTnPTrees::frac, getHisto(), LogTrace, plotscripts::mean(), DTTimeUnits::ns, DTChamberId::sector(), DTChamberId::station(), relativeConstraints::station, ntuplemaker::status, DTSuperLayerId::superLayer(), DTChamberId::wheel(), and ExpressReco_HICollisions_FallBack::x.

                                                                             {
 
   float tTrigMean,tTrigSigma,kFactor;
   int status = tTrigMap_->get(slId,tTrigMean,tTrigSigma,kFactor,DTTimeUnits::ns);
   if(status != 0) throw cms::Exception("[DTTTrigResidualCorrection]") << "Could not find tTrig entry in DB for"
                                                                       << slId << endl;
 
   float vDrift,hitResolution;
   status = mTimeMap_->get(slId,vDrift,hitResolution,DTVelocityUnits::cm_per_ns);
   if(status != 0) throw cms::Exception("[DTTTrigResidualCorrection]") << "Could not find vDrift entry in DB for"
                                                                       << slId << endl;
   TH1F residualHisto = *(getHisto(slId));
   double fitMean = -1.;
 
   if(useFit_){
 
     RooRealVar x("x","residual",-1.,1.);
     RooRealVar mean("mean","mean",residualHisto.GetMean(),-0.3,0.3);
     RooRealVar sigma1("sigma1","sigma1",0.,0.5);
     RooRealVar sigma2("sigma2","sigma2",0.,0.5);
 
     RooRealVar frac("frac","frac",0.,1.);
 
     RooGaussian myg1("myg1","Gaussian distribution",x,mean,sigma1);
     RooGaussian myg2("myg2","Gaussian distribution",x,mean,sigma2);
 
     RooAddPdf myg("myg","myg",RooArgList(myg1,myg2),RooArgList(frac));
 
     RooDataHist hdata("hdata","Binned data",RooArgList(x),&residualHisto);
     myg.fitTo(hdata,RooFit::Minos(0),RooFit::Range(-0.2,0.2));
 
     fitMean = mean.getVal();
     LogTrace("Calibration") << "[DTTTrigResidualCorrection]: \n"
                             << "                             Mean, Fit Mean    = " << residualHisto.GetMean()
                 << ", " << fitMean << "\n"
                             << "                             RMS, Fit RMS      = " << residualHisto.GetRMS()
                             << ", " << sigma1.getVal();
 
     //static int count = 0;
     /*
     if(count == 0){
       RooPlot *xframe = x.frame();
       hdata.plotOn(xframe);
       myg.plotOn(xframe);
       TCanvas c1;
       c1.cd();
       xframe->Draw();
       c1.SaveAs("prova.eps");
       count++;
     }
     */
 
   }
 
   int wheel = slId.wheel();
   int sector = slId.sector();
   int station = slId.station();
   int superLayer = slId.superLayer();
 
   double resTime = 0.;
   if(useSlopesCalib_){
      double vdrift_eff = vDriftEff_[wheel+2][sector-1][station-1][superLayer-1];
      if(vdrift_eff == 0) vdrift_eff = vDrift;
 
      if(vdrift_eff) resTime = ( (useFit_) ? fitMean : residualHisto.GetMean() )/vdrift_eff;
 
      LogTrace("Calibration") << "[DTTTrigResidualCorrection]: Effective vDrift, correction to tTrig = "
                              << vdrift_eff << ", " << resTime;
   } else{
      if(vDrift) resTime = ( (useFit_) ? fitMean : residualHisto.GetMean() )/vDrift;
 
      LogTrace("Calibration") << "[DTTTrigResidualCorrection]: vDrift from DB, correction to tTrig = "
                              << vDrift << ", " << resTime;
   }
  
   double corrMean = tTrigMean;
   double corrSigma = (tTrigSigma != 0.) ? tTrigSigma : 1.;
   double corrKFact = (tTrigSigma != 0.) ? (kFactor + resTime/tTrigSigma) : resTime;
 
   return DTTTrigData(corrMean,corrSigma,corrKFact);  
 }

const TH1F * DTTTrigResidualCorrection::getHisto ( const DTSuperLayerId & slId )

private

Definition at line 182 of file DTTTrigResidualCorrection.cc.

References edm::hlt::Exception, trackerHits::histo, and LogTrace.

                                                                           {
   string histoName = getHistoName(slId);
   LogTrace("Calibration") << "[DTTTrigResidualCorrection]: Accessing histogram " << histoName.c_str();
   TH1F* histo = static_cast<TH1F*>(rootFile_->Get(histoName.c_str()));
   if(!histo) throw cms::Exception("[DTTTrigResidualCorrection]") << "residual histogram not found:"
                                                                  << histoName << endl; 
   return histo;
 }

string DTTTrigResidualCorrection::getHistoName ( const DTSuperLayerId & slID )

private

Definition at line 191 of file DTTTrigResidualCorrection.cc.

References DTChamberId::sector(), DTChamberId::station(), relativeConstraints::station, cmsPerfCommons::Step, ExpressReco_HICollisions_FallBack::step, DTSuperLayerId::superlayer(), and DTChamberId::wheel().

                                                                          {
 
   int step = 3;
   stringstream wheel; wheel << slId.wheel();    
   stringstream station; station << slId.station();  
   stringstream sector; sector << slId.sector(); 
   stringstream superLayer; superLayer << slId.superlayer();
   stringstream Step; Step << step;
 
   string histoName =
     rootBaseDir_ + "/Wheel" + wheel.str() + 
     "/Station" + station.str() +
     "/Sector" + sector.str() +
     "/hResDist_STEP" + Step.str() +
     "_W" + wheel.str() +
     "_St" + station.str() +
     "_Sec" + sector.str() +
     "_SL" + superLayer.str();
 
   return histoName;
 }

void DTTTrigResidualCorrection::setES ( const edm::EventSetup & setup )

virtual

Implements DTTTrigBaseCorrection.

Definition at line 86 of file DTTTrigResidualCorrection.cc.

References edm::EventSetup::get().

                                                              {
   // Get tTrig record from DB
   ESHandle<DTTtrig> tTrig;
   //setup.get<DTTtrigRcd>().get(tTrig);
   setup.get<DTTtrigRcd>().get(dbLabel_,tTrig);
   tTrigMap_ = &*tTrig;
 
   // Get vDrift record
   ESHandle<DTMtime> mTimeHandle;
   setup.get<DTMtimeRcd>().get(mTimeHandle);
   mTimeMap_ = &*mTimeHandle;
 
 }