--- /dev/null
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+***************************************************************************/
+
+///////////////////////////////////////////////////////////////
+// //
+// This class provides TOF pass0/passX calibration tools //
+// //
+///////////////////////////////////////////////////////////////
+
+#include "AliTOFAnalysisTaskCalibPass0.h"
+#include "AliESDtrack.h"
+#include "AliESDEvent.h"
+#include "AliPhysicsSelection.h"
+#include "AliESDtrackCuts.h"
+#include "AliCDBManager.h"
+#include "AliGRPManager.h"
+#include "AliGRPObject.h"
+#include "AliTOFcalib.h"
+#include "TList.h"
+#include "TH2F.h"
+#include "TFile.h"
+#include "TH1D.h"
+#include "TObjArray.h"
+#include "TString.h"
+#include "TObjString.h"
+#include "TROOT.h"
+#include "TF1.h"
+#include "TTime.h"
+#include "TGrid.h"
+#include "TTimeStamp.h"
+#include "AliTOFRunParams.h"
+#include "AliCDBStorage.h"
+#include "AliCDBId.h"
+#include "AliCDBMetaData.h"
+#include "TSystem.h"
+#include "AliLog.h"
+
+ClassImp(AliTOFAnalysisTaskCalibPass0)
+
+//_______________________________________________________
+
+const Int_t AliTOFAnalysisTaskCalibPass0::fgkMaxNumberOfPoints = 10000; // max number of points
+const Double_t AliTOFAnalysisTaskCalibPass0::fgkMinVertexIntegral = 1000.;
+const Double_t AliTOFAnalysisTaskCalibPass0::fgkMinDeltatIntegral = 20000.;
+
+//_______________________________________________________
+
+AliTOFAnalysisTaskCalibPass0::AliTOFAnalysisTaskCalibPass0() :
+ AliAnalysisTaskSE("TOFCalib-Pass0"),
+ fInitFlag(kFALSE),
+ fEventSelectionFlag(kFALSE),
+ fVertexSelectionFlag(kFALSE),
+ fVertexCut(10.),
+ fRunNumber(0),
+ fESDEvent(NULL),
+ fEventCuts(new AliPhysicsSelection()),
+ fTrackCuts(new AliESDtrackCuts()),
+ fStartTime(0),
+ fEndTime(0),
+ fEventTime(0),
+ fElapsedTime(0),
+ fkVertex(NULL),
+ fGRPManager(new AliGRPManager()),
+ fkGRPObject(NULL),
+ fTOFcalib(new AliTOFcalib()),
+ fHistoList(new TList()),
+ fHistoVertexTimestamp(NULL),
+ fHistoDeltatTimestamp(NULL),
+ fHistoDeltazEta(NULL),
+ fHistoDeltazCosTheta(NULL),
+ fHistoAcceptedTracksEtaPt(NULL),
+ fHistoMatchedTracksEtaPt(NULL)
+{
+ /*
+ * default constructor
+ */
+
+ /* define output */
+ fHistoList->SetOwner(kTRUE);
+ DefineOutput(1, TList::Class());
+}
+
+//_______________________________________________________
+
+AliTOFAnalysisTaskCalibPass0::~AliTOFAnalysisTaskCalibPass0()
+{
+ /*
+ * default destructor
+ */
+
+ if (fHistoList) delete fHistoList;
+}
+
+//_______________________________________________________
+
+Bool_t
+AliTOFAnalysisTaskCalibPass0::InitRun()
+{
+ /*
+ * init run
+ */
+
+ /* get ESD event */
+ fESDEvent = dynamic_cast<AliESDEvent *>(InputEvent());
+ if (!fESDEvent) {
+ AliError("cannot get ESD event");
+ return kFALSE;
+ }
+ /* get run number */
+ Int_t runNb = fESDEvent->GetRunNumber();
+ /* check run already initialized */
+ if (fInitFlag && fRunNumber == runNb) return kTRUE;
+ if (fInitFlag && fRunNumber != runNb) {
+ AliFatal(Form("run number has changed within same job and this is not allowed: %d -> %d", fRunNumber, runNb));
+ return kTRUE;
+ }
+ fInitFlag = kFALSE;
+ /* init cdb if not yet done */
+ AliCDBManager *cdb = AliCDBManager::Instance();
+ if (!cdb->IsDefaultStorageSet())
+ cdb->SetDefaultStorage("raw://");
+ if (cdb->GetRun() < 0)
+ cdb->SetRun(runNb);
+ /* init TOF calib */
+ if (!fTOFcalib->Init()) {
+ AliError("cannot init TOF calib");
+ return kFALSE;
+ }
+ /* get GRP data */
+ if (!fGRPManager->ReadGRPEntry()) {
+ AliError("error while reading \"GRPEntry\" from OCDB");
+ return kFALSE;
+ }
+ fkGRPObject = fGRPManager->GetGRPData();
+ if (!fkGRPObject) {
+ AliError("cannot get \"GRPData\" from GRP manager");
+ return kFALSE;
+ }
+ fStartTime = fkGRPObject->GetTimeStart();
+ fEndTime = fkGRPObject->GetTimeEnd();
+ AliInfo(Form("got \"GRPData\": startTime=%d, endTime=%d", fStartTime, fEndTime));
+
+ AliInfo(Form("initialized for run %d", runNb));
+ fInitFlag = kTRUE;
+ fRunNumber = runNb;
+
+ /* set histo title with run-number and start-time */
+ fHistoVertexTimestamp->SetTitle(Form("run: %d, startTimestamp: %u", fRunNumber, fStartTime));
+ fHistoDeltatTimestamp->SetTitle(Form("run: %d, startTimestamp: %u", fRunNumber, fStartTime));
+ fHistoDeltazEta->SetTitle(Form("run: %d, startTimestamp: %u", fRunNumber, fStartTime));
+ fHistoDeltazCosTheta->SetTitle(Form("run: %d, startTimestamp: %u", fRunNumber, fStartTime));
+ fHistoAcceptedTracksEtaPt->SetTitle(Form("run: %d, startTimestamp: %u", fRunNumber, fStartTime));
+ fHistoMatchedTracksEtaPt->SetTitle(Form("run: %d, startTimestamp: %u", fRunNumber, fStartTime));
+
+ return kTRUE;
+}
+
+//_______________________________________________________
+
+Bool_t
+AliTOFAnalysisTaskCalibPass0::InitEvent()
+{
+ /*
+ * init event
+ */
+
+ /* get ESD event */
+ fESDEvent = dynamic_cast<AliESDEvent *>(InputEvent());
+ if (!fESDEvent) return kFALSE;
+ /* set event time and elapsed time */
+ fEventTime = fESDEvent->GetTimeStamp();
+ fElapsedTime = fESDEvent->GetTimeStamp() - fStartTime;
+ /* event selection */
+ if (fEventSelectionFlag && !fEventCuts->IsCollisionCandidate(fESDEvent)) return kFALSE;
+ /* vertex selection */
+ fkVertex = fESDEvent->GetPrimaryVertexTracks();
+ if (fVertexSelectionFlag && fkVertex->GetNContributors() < 1) {
+ fkVertex = fESDEvent->GetPrimaryVertexSPD();
+ if (fkVertex->GetNContributors() < 1) return kFALSE;
+ }
+ if (fVertexSelectionFlag && TMath::Abs(fkVertex->GetZ()) > fVertexCut) return kFALSE;
+ /* calibrate ESD if requested */
+ fTOFcalib->CalibrateESD(fESDEvent);
+
+ return kTRUE;
+}
+
+//_______________________________________________________
+
+Bool_t
+AliTOFAnalysisTaskCalibPass0::HasTOFMeasurement(const AliESDtrack *track) const
+{
+ /*
+ * has TOF measurement
+ */
+
+ /* check TOF status flags */
+ if (!(track->GetStatus() & AliESDtrack::kTOFout) ||
+ !(track->GetStatus() & AliESDtrack::kTIME)) return kFALSE;
+ /* check integrated length */
+ if (track->GetIntegratedLength() < 350.) return kFALSE;
+
+ /* TOF measurement ok */
+ return kTRUE;
+}
+
+//_______________________________________________________
+
+void
+AliTOFAnalysisTaskCalibPass0::UserCreateOutputObjects()
+{
+ /*
+ * user create output objects
+ */
+
+ /* time binning */
+ Int_t timeBins = 288;
+ Float_t timeMin = 0.;
+ Float_t timeMax = 24. * 3600.;
+ /* vertex binning */
+ Int_t vertexBins = 200;
+ Float_t vertexMin = -50.;
+ Float_t vertexMax = 50.;
+ /* deltat binning */
+ Int_t deltatBins = 2000;
+ Float_t deltatMin = -24400.;
+ Float_t deltatMax = 24400.;
+ /* deltaz binning */
+ Int_t deltazBins = 200;
+ Float_t deltazMin = -10.;
+ Float_t deltazMax = 10.;
+ /* eta binning */
+ Int_t etaBins = 200;
+ Float_t etaMin = -1.;
+ Float_t etaMax = 1.;
+ /* p binning */
+ Int_t pBins = 500;
+ Float_t pMin = 0.;
+ Float_t pMax = 5.;
+
+ fHistoVertexTimestamp = new TH2F("hHistoVertexTimestamp", "Vertex position;elapsed time (s);z (cm);", timeBins, timeMin, timeMax, vertexBins, vertexMin, vertexMax);
+ fHistoList->Add(fHistoVertexTimestamp);
+
+ fHistoDeltatTimestamp = new TH2F("hHistoDeltatTimestamp", "Global time shift (T0-fill);elapsed time (s);t - t_{exp}^{(#pi)} (ps);", timeBins, timeMin, timeMax, deltatBins, deltatMin, deltatMax);
+ fHistoList->Add(fHistoDeltatTimestamp);
+
+ fHistoDeltazEta = new TH2F("hHistoDeltazEta", "Matching residuals (longitudinal);#eta;#Deltaz (cm);", etaBins, etaMin, etaMax, deltazBins, deltazMin, deltazMax);
+ fHistoList->Add(fHistoDeltazEta);
+
+ fHistoDeltazCosTheta = new TH2F("hHistoDeltazCosTheta", "Matching residuals (longitudinal);cos #theta;#Deltaz (cm);", etaBins, etaMin, etaMax, deltazBins, deltazMin, deltazMax);
+ fHistoList->Add(fHistoDeltazCosTheta);
+
+ fHistoAcceptedTracksEtaPt = new TH2F("hHistoAcceptedTracksEtaPt", "Accepted tracks;#eta;#p_{T} (GeV/c);", etaBins, etaMin, etaMax, pBins, pMin, pMax);
+ fHistoList->Add(fHistoAcceptedTracksEtaPt);
+
+ fHistoMatchedTracksEtaPt = new TH2F("hHistoMatchedTracksEtaPt", "Matched tracks;#eta;p_{T} (GeV/c);", etaBins, etaMin, etaMax, pBins, pMin, pMax);
+ fHistoList->Add(fHistoMatchedTracksEtaPt);
+
+ /* post data */
+ PostData(1, fHistoList);
+}
+
+//_______________________________________________________
+
+void
+AliTOFAnalysisTaskCalibPass0::UserExec(Option_t *)
+{
+ /*
+ * user exec
+ */
+
+ /* init run */
+ if (!InitRun()) return;
+ /* init event */
+ if (!InitEvent()) return;
+
+ /*** ACCEPTED EVENT ***/
+
+ /* fill vertex histo */
+ fHistoVertexTimestamp->Fill(fElapsedTime, fkVertex->GetZ());
+
+ /* loop over ESD tracks */
+ Int_t nTracks = fESDEvent->GetNumberOfTracks();
+ AliESDtrack *track;
+ Double_t eta, costheta, pt, time, timei[AliPID::kSPECIES], deltat, deltaz;
+ for (Int_t itrk = 0; itrk < nTracks; itrk++) {
+ /* get track */
+ track = fESDEvent->GetTrack(itrk);
+ if (!track) continue;
+ /* check accept track */
+ if (!fTrackCuts->AcceptTrack(track)) continue;
+ /* get track info */
+ eta = track->Eta();
+ costheta = TMath::Cos(track->Theta());
+ pt = track->Pt();
+ /* fill accepted tracks histo */
+ fHistoAcceptedTracksEtaPt->Fill(eta, pt);
+ /* check TOF measurement */
+ if (!HasTOFMeasurement(track)) continue;
+
+ /*** ACCEPTED TRACK WITH TOF MEASUREMENT ***/
+
+ /* fill matched tracks histo */
+ fHistoMatchedTracksEtaPt->Fill(eta, pt);
+ /* get TOF info */
+ time = track->GetTOFsignal();
+ track->GetIntegratedTimes(timei);
+ deltat = time - timei[AliPID::kPion];
+ deltaz = track->GetTOFsignalDz();
+
+ /* fill histos */
+ fHistoDeltatTimestamp->Fill(fElapsedTime, deltat);
+ fHistoDeltazEta->Fill(eta, deltaz);
+ fHistoDeltazCosTheta->Fill(costheta, deltaz);
+
+ } /* end of loop over ESD tracks */
+
+ /* post data */
+ PostData(1, fHistoList);
+
+}
+
+//_______________________________________________________
+
+Bool_t
+AliTOFAnalysisTaskCalibPass0::ProcessOutput(const Char_t *filename, const Char_t *dbString)
+{
+ /*
+ * process output
+ */
+
+ /* open file */
+ TFile *file = TFile::Open(filename);
+ if (!file || !file->IsOpen()) {
+ AliError(Form("cannot open output file %s", filename));
+ return kFALSE;
+ }
+ /* get histo list */
+ TList *list = (TList *)file->Get("Histos");
+ if (!list) {
+ AliError(Form("cannot get \"Histos\" list from file %s", filename));
+ return kFALSE;
+ }
+ /* get histos */
+ TH2F *histoVertexTimestamp = (TH2F *)list->FindObject("hHistoVertexTimestamp");
+ if (!histoVertexTimestamp) {
+ AliError(Form("cannot get \"hHistoVertexTimestamp\" object from file %s", filename));
+ return kFALSE;
+ }
+ TH2F *histoDeltatTimestamp = (TH2F *)list->FindObject("hHistoDeltatTimestamp");
+ if (!histoDeltatTimestamp) {
+ AliError(Form("cannot get \"hHistoDeltatTimestamp\" object from file %s", filename));
+ return kFALSE;
+ }
+ TH2F *histoDeltazEta = (TH2F *)list->FindObject("hHistoDeltazEta");
+ if (!histoDeltazEta) {
+ AliError(Form("cannot get \"hHistoDeltazEta\" object from file %s", filename));
+ return kFALSE;
+ }
+ TH2F *histoDeltazCosTheta = (TH2F *)list->FindObject("hHistoDeltazCosTheta");
+ if (!histoDeltazCosTheta) {
+ AliError(Form("cannot get \"hHistoDeltazCosTheta\" object from file %s", filename));
+ return kFALSE;
+ }
+ TH2F *histoAcceptedTracksEtaPt = (TH2F *)list->FindObject("hHistoAcceptedTracksEtaPt");
+ if (!histoAcceptedTracksEtaPt) {
+ AliError(Form("cannot get \"hHistoAccptedTracksEtaPt\" object from file %s", filename));
+ return kFALSE;
+ }
+ TH2F *histoMatchedTracksEtaPt = (TH2F *)list->FindObject("hHistoMatchedTracksEtaPt");
+ if (!histoMatchedTracksEtaPt) {
+ AliError(Form("cannot get \"hHistoMatchedTracksEtaPt\" object from file %s", filename));
+ return kFALSE;
+ }
+ /* check matching performance */
+ if (!CheckMatchingPerformance(histoDeltazEta, histoAcceptedTracksEtaPt, histoMatchedTracksEtaPt)) {
+ AliError("error while checking matching efficiency");
+ return kFALSE;
+ }
+ /* calibrate and store */
+ if (!CalibrateAndStore(histoVertexTimestamp, histoDeltatTimestamp, dbString)) {
+ AliError("error while calibrating and storing");
+ return kFALSE;
+ }
+
+ /* success */
+ return kTRUE;
+}
+
+//_______________________________________________________
+
+Bool_t
+AliTOFAnalysisTaskCalibPass0::CheckMatchingPerformance(const TH2F *histoDeltazCosTheta, const TH2F *histoAcceptedTracksEtaPt, const TH2F *histoMatchedTracksEtaPt) const
+{
+ /*
+ * check matching performance
+ */
+
+ /* check pointers */
+ if (!histoDeltazCosTheta || !histoAcceptedTracksEtaPt || !histoMatchedTracksEtaPt)
+ return kFALSE;
+ /* dummy for the time being */
+ return kTRUE;
+}
+
+//_______________________________________________________
+
+Bool_t
+AliTOFAnalysisTaskCalibPass0::CalibrateAndStore(TH2F *histoVertexTimestamp, TH2F *histoDeltatTimestamp, const Char_t *dbString)
+{
+ /*
+ * calibrate and store
+ */
+
+ /* check pointers */
+ if (!histoVertexTimestamp || !histoDeltatTimestamp)
+ return kFALSE;
+
+ /*** GET RUN-NUMBER AND START-TIMESTAMP ***/
+
+ TString str;
+ TObjArray *strarr = NULL;
+ TObjString *ostr = NULL;
+ str = histoVertexTimestamp->GetTitle();
+ strarr = str.Tokenize(",");
+ if (!strarr) {
+ AliError("problems whith tokenize histogram title");
+ return kFALSE;
+ }
+
+ /* run number */
+ ostr = (TObjString *)strarr->At(0);
+ if (!ostr) {
+ AliError("problems while getting run number from histogram title");
+ return kFALSE;
+ }
+ str = ostr->GetString();
+ if (!str.BeginsWith("run:")) {
+ AliError("problems while getting run number from histogram title");
+ return kFALSE;
+ }
+ str.Remove(0, 5);
+ Int_t runNb = atoi(str.Data());
+ if (runNb <= 0) {
+ AliError(Form("bad run number: %d", runNb));
+ return kFALSE;
+ }
+ AliInfo(Form("got run number: %d", runNb));
+
+ /* start timestamp */
+ ostr = (TObjString *)strarr->At(1);
+ if (!ostr) {
+ AliError("problems while getting start timestamp from histogram title");
+ return kFALSE;
+ }
+ str = ostr->GetString();
+ str.Remove(0, 1); /* remove empty space at the beginning */
+ if (!str.BeginsWith("startTimestamp:")) {
+ AliError("problems while getting start timestamp from histogram title");
+ return kFALSE;
+ }
+ str.Remove(0, 16);
+ UInt_t startTimestamp = atoi(str.Data());
+ if (startTimestamp <= 0) {
+ AliError(Form("bad start timestamp: %d", startTimestamp));
+ return kFALSE;
+ }
+ TTimeStamp ts = startTimestamp;
+ AliInfo(Form("got start timestamp: %d (%s)", startTimestamp, ts.AsString()));
+
+ /*** CALIBRATION STAGE ***/
+
+ /* get fit function */
+ TF1 *fitFunc = (TF1 *)gROOT->GetFunction("gaus");
+
+ /* projection-x */
+ TH1D *histoVertexTimestamppx = histoVertexTimestamp->ProjectionX("histoVertexTimestamppx");
+ TH1D *histoDeltatTimestamppx = histoDeltatTimestamp->ProjectionX("histoDeltatTimestamppx");
+
+ /* define mix and max time bin */
+ Int_t minBin = histoVertexTimestamppx->FindFirstBinAbove(0);
+ Int_t maxBin = histoVertexTimestamppx->FindLastBinAbove(0);
+ Float_t minTime = histoVertexTimestamppx->GetBinLowEdge(minBin);
+ Float_t maxTime = histoVertexTimestamppx->GetBinLowEdge(maxBin + 1);
+ AliInfo(Form("min/max time defined: %d < t < %d s [%d, %d]", (Int_t)minTime, (Int_t)maxTime, minBin, maxBin));
+
+ /* loop over time bins */
+ Int_t nPoints = 0;
+ Float_t time[fgkMaxNumberOfPoints], timeerr[fgkMaxNumberOfPoints];
+ Float_t vertexMean[fgkMaxNumberOfPoints], vertexMeanerr[fgkMaxNumberOfPoints];
+ Float_t vertexSigma[fgkMaxNumberOfPoints], vertexSigmaerr[fgkMaxNumberOfPoints];
+ Float_t timeZeroMean[fgkMaxNumberOfPoints], timeZeroMeanerr[fgkMaxNumberOfPoints];
+ Float_t timeZeroSigma[fgkMaxNumberOfPoints], timeZeroSigmaerr[fgkMaxNumberOfPoints];
+ Float_t averageTimeZero = 0.;
+ Float_t averageTimeSigma = 0.;
+ Float_t averageVertexSpread = 0.;
+ for (Int_t ibin = minBin; ibin <= maxBin; ibin++) {
+
+ /* define time window */
+ Int_t startBin = ibin;
+ Int_t endBin = ibin;
+ while(histoVertexTimestamppx->Integral(startBin, endBin) < fgkMinVertexIntegral ||
+ histoDeltatTimestamppx->Integral(startBin, endBin) < fgkMinDeltatIntegral) {
+ if (endBin < maxBin) endBin++;
+ else if (startBin > minBin) startBin--;
+ else break;
+ }
+ if (histoVertexTimestamppx->Integral(startBin, endBin) <= 0 ||
+ histoDeltatTimestamppx->Integral(startBin, endBin) <= 0) continue;
+ Float_t startTime = histoVertexTimestamppx->GetBinLowEdge(startBin);
+ Float_t endTime = histoVertexTimestamppx->GetBinLowEdge(endBin + 1);
+ Float_t vertexIntegral = histoVertexTimestamppx->Integral(startBin, endBin);
+ Float_t deltatIntegral = histoDeltatTimestamppx->Integral(startBin, endBin);
+ AliInfo(Form("time window defined: %d < t < %d s [%d, %d]: %d vertices, %d tracks", (Int_t)startTime, (Int_t)endTime, startBin, endBin, (Int_t)vertexIntegral, (Int_t)deltatIntegral));
+
+ /* projection-y */
+ TH1D *histoVertexTimestamppy = histoVertexTimestamp->ProjectionY("histoVertexTimestamppy", startBin, endBin);
+ TH1D *histoDeltatTimestamppy = histoDeltatTimestamp->ProjectionY("histoDeltatTimestamppy", startBin, endBin);
+
+ /* average time */
+ histoVertexTimestamppx->GetXaxis()->SetRange(startBin, endBin);
+ time[nPoints] = histoVertexTimestamppx->GetMean();
+ timeerr[nPoints] = histoVertexTimestamppx->GetMeanError();
+
+ /* fit vertex */
+ if (FitPeak(fitFunc, histoVertexTimestamppy, 10., 3., 3.) != 0) {
+ AliError("troubles fitting vertex, skip");
+ delete histoVertexTimestamppy;
+ delete histoDeltatTimestamppy;
+ continue;
+ }
+ vertexMean[nPoints] = fitFunc->GetParameter(1);
+ vertexMeanerr[nPoints] = fitFunc->GetParError(1);
+ vertexSigma[nPoints] = fitFunc->GetParameter(2);
+ vertexSigmaerr[nPoints] = fitFunc->GetParError(2);
+ averageVertexSpread += fitFunc->GetParameter(2);
+
+ /* fit time-zero */
+ if (FitPeak(fitFunc, histoDeltatTimestamppy, 500., 2., 1.) != 0) {
+ AliError("troubles fitting time-zero TRACKS, skip");
+ delete histoVertexTimestamppy;
+ delete histoDeltatTimestamppy;
+ continue;
+ }
+ timeZeroMean[nPoints] = fitFunc->GetParameter(1);
+ timeZeroMeanerr[nPoints] = fitFunc->GetParError(1);
+ timeZeroSigma[nPoints] = fitFunc->GetParameter(2);
+ timeZeroSigmaerr[nPoints] = fitFunc->GetParError(2);
+ averageTimeZero += fitFunc->GetParameter(1);
+ averageTimeSigma += fitFunc->GetParameter(2);
+
+ /* delete projection-y */
+ delete histoVertexTimestamppy;
+ delete histoDeltatTimestamppy;
+
+ /* increment n points */
+ nPoints++;
+
+ /* set current bin */
+ ibin = endBin;
+
+ } /* end of loop over time bins */
+
+ /* delete projection-x */
+ delete histoVertexTimestamppx;
+ delete histoDeltatTimestamppx;
+
+ /* check points */
+ if (nPoints <= 0) {
+ AliError("no measurement available, quit");
+ return kFALSE;
+ }
+ AliInfo(Form("average time-zero = %f", averageTimeZero / nPoints));
+ AliInfo(Form("average time-sigma = %f", averageTimeSigma / nPoints));
+ AliInfo(Form("average v-spread = %f", averageVertexSpread / nPoints));
+
+ /*** CREATE RUN PARAMS OBJECT ***/
+
+#if 0
+ /* get start time from GRP */
+ TGrid::Connect("alien://", 0, 0, "t");
+ AliCDBManager *cdb = AliCDBManager::Instance();
+ cdb->SetDefaultStorage("raw://");
+ cdb->SetRun(runNb);
+ AliGRPManager grp;
+ if (!grp.ReadGRPEntry()) {
+ AliError("error while reading GRP entry");
+ return kFALSE;
+ }
+ UInt_t startTimestamp = grp.GetGRPData()->GetTimeStart();
+ TTimeStamp ts;
+ ts = startTimestamp;
+ AliInfo(Form("got start time from GRP: %s", ts.AsString()));
+#endif
+
+ /* create arrays */
+ UInt_t timestamp[fgkMaxNumberOfPoints];
+ Float_t t0[fgkMaxNumberOfPoints];
+ Float_t tofReso[fgkMaxNumberOfPoints];
+ Float_t t0Spread[fgkMaxNumberOfPoints];
+ for (Int_t ipoint = 0; ipoint < nPoints; ipoint++) {
+ timestamp[ipoint] = time[ipoint] + startTimestamp;
+ t0[ipoint] = timeZeroMean[ipoint];
+ tofReso[ipoint] = timeZeroSigma[ipoint];
+ t0Spread[ipoint] = vertexSigma[ipoint] / 2.99792457999999984e-02;
+ }
+ UInt_t run[1] = {runNb};
+ UInt_t runFirstPoint[1] = {0};
+ UInt_t runLastPoint[1] = {nPoints - 1};
+
+ /* create run params object */
+ AliTOFRunParams obj(nPoints, 1);
+ AliInfo(Form("create run params object for run %d with %d points", runNb, nPoints));
+ obj.SetTimestamp(timestamp);
+ obj.SetT0(t0);
+ obj.SetTOFResolution(tofReso);
+ obj.SetT0Spread(t0Spread);
+ obj.SetRunNb(run);
+ obj.SetRunFirstPoint(runFirstPoint);
+ obj.SetRunLastPoint(runLastPoint);
+
+ /*** CREATE OCDB ENTRY ***/
+
+ if (!dbString) {
+ AliError("cannot store object because of NULL string");
+ return kFALSE;
+ }
+
+ /* install run params object in OCDB */
+ AliCDBManager *cdb = AliCDBManager::Instance();
+ AliCDBStorage *sto = cdb->GetStorage(dbString);
+ if (!sto) {
+ AliError(Form("cannot get storage %s", dbString));
+ return kFALSE;
+ }
+ AliCDBId id("TOF/Calib/RunParams", runNb, runNb);
+ AliCDBMetaData md;
+ md.SetResponsible("Roberto Preghenella");
+ md.SetComment("offline TOF run parameters");
+ md.SetAliRootVersion(gSystem->Getenv("ARVERSION"));
+ md.SetBeamPeriod(0);
+ if (!sto->Put(&obj, id, &md)) {
+ AliError(Form("error while putting object in storage %s", dbString));
+ }
+
+ /* success */
+ return kTRUE;
+}
+
+//_____________________________________________________________
+
+Int_t
+AliTOFAnalysisTaskCalibPass0::FitPeak(TF1 *fitFunc, TH1D *h, Float_t startSigma, Float_t nSigmaMin, Float_t nSigmaMax)
+{
+ /*
+ * fit peak
+ */
+
+ Double_t fitCent = h->GetBinCenter(h->GetMaximumBin());
+ Double_t fitMin = fitCent - nSigmaMin * startSigma;
+ Double_t fitMax = fitCent + nSigmaMax * startSigma;
+ if (fitMin < h->GetXaxis()->GetXmin()) fitMin = h->GetXaxis()->GetXmin();
+ if (fitMax > h->GetXaxis()->GetXmax()) fitMax = h->GetXaxis()->GetXmax();
+ fitFunc->SetParameter(1, fitCent);
+ fitFunc->SetParameter(2, startSigma);
+ Int_t fitres = h->Fit(fitFunc, "WWq0", "", fitMin, fitMax);
+ if (fitres != 0) return fitres;
+ /* refit with better range */
+ for (Int_t i = 0; i < 3; i++) {
+ fitCent = fitFunc->GetParameter(1);
+ fitMin = fitCent - nSigmaMin * fitFunc->GetParameter(2);
+ fitMax = fitCent + nSigmaMax * fitFunc->GetParameter(2);
+ if (fitMin < h->GetXaxis()->GetXmin()) fitMin = h->GetXaxis()->GetXmin();
+ if (fitMax > h->GetXaxis()->GetXmax()) fitMax = h->GetXaxis()->GetXmax();
+ fitres = h->Fit(fitFunc, "q0", "", fitMin, fitMax);
+ if (fitres != 0) return fitres;
+ }
+ return fitres;
+}
git://git.uio.no / u/mrichter/AliRoot.git / commitdiff