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/*
* See header file for a description of this class.
*
* \author A. Vilela Pereira
*/
#include "DTTTrigResidualCorrection.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "DataFormats/MuonDetId/interface/DTSuperLayerId.h"
#include "CondFormats/DTObjects/interface/DTTtrig.h"
#include "CondFormats/DataRecord/interface/DTTtrigRcd.h"
#include "CondFormats/DTObjects/interface/DTMtime.h"
#include "CondFormats/DataRecord/interface/DTMtimeRcd.h"
#include "CondFormats/DTObjects/interface/DTRecoConditions.h"
#include "CondFormats/DataRecord/interface/DTRecoConditionsVdriftRcd.h"
#include "CalibMuon/DTCalibration/interface/DTResidualFitter.h"
#include "TFile.h"
#include "TH1F.h"
#include "TF1.h"
#include "TCanvas.h"
#include "RooPlot.h"
#include "RooRealVar.h"
#include "RooDataHist.h"
#include "RooGaussian.h"
#include "RooAddPdf.h"
#include "RooFitResult.h"
#include "RooGlobalFunc.h"
#include <string>
#include <sstream>
#include <fstream>
using namespace std;
using namespace edm;
namespace dtCalibration {
DTTTrigResidualCorrection::DTTTrigResidualCorrection(const ParameterSet& pset, edm::ConsumesCollector cc) {
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");
useSlopesCalib_ = pset.getUntrackedParameter<bool>("useSlopesCalib", false);
readLegacyVDriftDB = pset.getParameter<bool>("readLegacyVDriftDB");
ttrigToken_ =
cc.esConsumes<edm::Transition::BeginRun>(edm::ESInputTag("", pset.getUntrackedParameter<string>("dbLabel")));
mTimeMapToken_ = cc.esConsumes<edm::Transition::BeginRun>();
vDriftMapToken_ = cc.esConsumes<edm::Transition::BeginRun>();
// Load external slopes
if (useSlopesCalib_) {
ifstream fileSlopes;
fileSlopes.open(pset.getParameter<FileInPath>("slopesFileName").fullPath().c_str());
int tmp_wheel = 0, tmp_sector = 0, tmp_station = 0, tmp_SL = 0;
double tmp_ttrig = 0., tmp_t0 = 0., tmp_kfact = 0.;
int tmp_a = 0, tmp_b = 0, tmp_c = 0, 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();
}
bool debug = pset.getUntrackedParameter<bool>("debug", false);
fitter_ = new DTResidualFitter(debug);
}
DTTTrigResidualCorrection::~DTTTrigResidualCorrection() {
delete rootFile_;
delete fitter_;
}
void DTTTrigResidualCorrection::setES(const EventSetup& setup) {
// Get tTrig record from DB
ESHandle<DTTtrig> tTrig;
tTrig = setup.getHandle(ttrigToken_);
tTrigMap_ = &*tTrig;
// Get vDrift record
if (readLegacyVDriftDB) {
ESHandle<DTMtime> mTimeHandle;
mTimeMap_ = &setup.getData(mTimeMapToken_);
vDriftMap_ = nullptr;
} else {
ESHandle<DTRecoConditions> hVdrift;
vDriftMap_ = &setup.getData(vDriftMapToken_);
mTimeMap_ = nullptr;
// Consistency check: no parametrization is implemented for the time being
int version = vDriftMap_->version();
if (version != 1) {
throw cms::Exception("Configuration") << "only version 1 is presently supported for VDriftDB";
}
}
}
DTTTrigData DTTTrigResidualCorrection::correction(const DTSuperLayerId& slId) {
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 = 0.;
if (readLegacyVDriftDB) { // Legacy format
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;
} else {
vDrift = vDriftMap_->get(DTWireId(slId.rawId()));
}
TH1F residualHisto = *(getHisto(slId));
LogTrace("Calibration") << "[DTTTrigResidualCorrection]: \n"
<< " Mean, RMS = " << residualHisto.GetMean() << ", " << residualHisto.GetRMS();
double fitMean = -1.;
double fitSigma = -1.;
if (useFit_) {
LogTrace("Calibration") << "[DTTTrigResidualCorrection]: Fitting histogram " << residualHisto.GetName();
int nSigmas = 2;
DTResidualFitResult fitResult = fitter_->fitResiduals(residualHisto, nSigmas);
fitMean = fitResult.fitMean;
fitSigma = fitResult.fitSigma;
LogTrace("Calibration") << "[DTTTrigResidualCorrection]: \n"
<< " Fit Mean = " << fitMean << "\n"
<< " Fit Sigma = " << fitSigma;
}
double resMean = (useFit_) ? fitMean : residualHisto.GetMean();
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 = resMean / vdrift_eff;
LogTrace("Calibration") << "[DTTTrigResidualCorrection]: Effective vDrift, correction to tTrig = " << vdrift_eff
<< ", " << resTime;
} else {
if (vDrift)
resTime = resMean / 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) {
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) {
int step = 3;
std::string wheel = std::to_string(slId.wheel());
std::string station = std::to_string(slId.station());
std::string sector = std::to_string(slId.sector());
std::string superLayer = std::to_string(slId.superlayer());
std::string Step = std::to_string(step);
string histoName = rootBaseDir_ + "/Wheel" + wheel + "/Station" + station + "/Sector" + sector + "/hResDist_STEP" +
Step + "_W" + wheel + "_St" + station + "_Sec" + sector + "_SL" + superLayer;
return histoName;
}
} // namespace dtCalibration
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