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3c8efc07 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | ***************************************************************************/ | |
15 | ||
16 | /////////////////////////////////////////////////////////////// | |
17 | // // | |
18 | // This class provides TOF pass0/passX calibration tools // | |
19 | // // | |
20 | /////////////////////////////////////////////////////////////// | |
21 | ||
22 | #include "AliTOFAnalysisTaskCalibPass0.h" | |
23 | #include "AliESDtrack.h" | |
24 | #include "AliESDEvent.h" | |
25 | #include "AliPhysicsSelection.h" | |
26 | #include "AliESDtrackCuts.h" | |
27 | #include "AliCDBManager.h" | |
28 | #include "AliGRPManager.h" | |
29 | #include "AliGRPObject.h" | |
30 | #include "AliTOFcalib.h" | |
31 | #include "TList.h" | |
32 | #include "TH2F.h" | |
33 | #include "TFile.h" | |
34 | #include "TH1D.h" | |
35 | #include "TObjArray.h" | |
36 | #include "TString.h" | |
37 | #include "TObjString.h" | |
38 | #include "TROOT.h" | |
39 | #include "TF1.h" | |
40 | #include "TTime.h" | |
41 | #include "TGrid.h" | |
42 | #include "TTimeStamp.h" | |
43 | #include "AliTOFRunParams.h" | |
44 | #include "AliCDBStorage.h" | |
45 | #include "AliCDBId.h" | |
46 | #include "AliCDBMetaData.h" | |
47 | #include "TSystem.h" | |
48 | #include "AliLog.h" | |
49 | ||
50 | ClassImp(AliTOFAnalysisTaskCalibPass0) | |
51 | ||
52 | //_______________________________________________________ | |
53 | ||
07901ecf | 54 | const Char_t *AliTOFAnalysisTaskCalibPass0::fgkStatusCodeName[AliTOFAnalysisTaskCalibPass0::kNStatusCodes] = { |
55 | "ok", | |
56 | "input error", | |
57 | "data error", | |
58 | "not active", | |
59 | "low statistics", | |
60 | "no measurement", | |
61 | "store error" | |
62 | }; | |
63 | ||
3c8efc07 | 64 | const Int_t AliTOFAnalysisTaskCalibPass0::fgkMaxNumberOfPoints = 10000; // max number of points |
d501ffec | 65 | Double_t AliTOFAnalysisTaskCalibPass0::fgMinVertexIntegral = 100.; |
66 | Double_t AliTOFAnalysisTaskCalibPass0::fgMinDeltatIntegral = 2000.; | |
67 | Double_t AliTOFAnalysisTaskCalibPass0::fgMinVertexIntegralSample = 1000.; | |
68 | Double_t AliTOFAnalysisTaskCalibPass0::fgMinDeltatIntegralSample = 20000.; | |
3c8efc07 | 69 | |
70 | //_______________________________________________________ | |
71 | ||
72 | AliTOFAnalysisTaskCalibPass0::AliTOFAnalysisTaskCalibPass0() : | |
73 | AliAnalysisTaskSE("TOFCalib-Pass0"), | |
07901ecf | 74 | fStatus(kOk), |
3c8efc07 | 75 | fInitFlag(kFALSE), |
76 | fEventSelectionFlag(kFALSE), | |
77 | fVertexSelectionFlag(kFALSE), | |
78 | fVertexCut(10.), | |
79 | fRunNumber(0), | |
80 | fESDEvent(NULL), | |
81 | fEventCuts(new AliPhysicsSelection()), | |
82 | fTrackCuts(new AliESDtrackCuts()), | |
83 | fStartTime(0), | |
84 | fEndTime(0), | |
85 | fEventTime(0), | |
86 | fElapsedTime(0), | |
87 | fkVertex(NULL), | |
88 | fGRPManager(new AliGRPManager()), | |
89 | fkGRPObject(NULL), | |
90 | fTOFcalib(new AliTOFcalib()), | |
91 | fHistoList(new TList()), | |
92 | fHistoVertexTimestamp(NULL), | |
93 | fHistoDeltatTimestamp(NULL), | |
94 | fHistoDeltazEta(NULL), | |
95 | fHistoDeltazCosTheta(NULL), | |
96 | fHistoAcceptedTracksEtaPt(NULL), | |
97 | fHistoMatchedTracksEtaPt(NULL) | |
98 | { | |
99 | /* | |
100 | * default constructor | |
101 | */ | |
102 | ||
103 | /* define output */ | |
104 | fHistoList->SetOwner(kTRUE); | |
105 | DefineOutput(1, TList::Class()); | |
106 | } | |
107 | ||
108 | //_______________________________________________________ | |
109 | ||
110 | AliTOFAnalysisTaskCalibPass0::~AliTOFAnalysisTaskCalibPass0() | |
111 | { | |
112 | /* | |
113 | * default destructor | |
114 | */ | |
115 | ||
116 | if (fHistoList) delete fHistoList; | |
117 | } | |
118 | ||
119 | //_______________________________________________________ | |
120 | ||
121 | Bool_t | |
122 | AliTOFAnalysisTaskCalibPass0::InitRun() | |
123 | { | |
124 | /* | |
125 | * init run | |
126 | */ | |
127 | ||
128 | /* get ESD event */ | |
129 | fESDEvent = dynamic_cast<AliESDEvent *>(InputEvent()); | |
130 | if (!fESDEvent) { | |
131 | AliError("cannot get ESD event"); | |
132 | return kFALSE; | |
133 | } | |
134 | /* get run number */ | |
135 | Int_t runNb = fESDEvent->GetRunNumber(); | |
136 | /* check run already initialized */ | |
137 | if (fInitFlag && fRunNumber == runNb) return kTRUE; | |
138 | if (fInitFlag && fRunNumber != runNb) { | |
139 | AliFatal(Form("run number has changed within same job and this is not allowed: %d -> %d", fRunNumber, runNb)); | |
140 | return kTRUE; | |
141 | } | |
142 | fInitFlag = kFALSE; | |
143 | /* init cdb if not yet done */ | |
144 | AliCDBManager *cdb = AliCDBManager::Instance(); | |
145 | if (!cdb->IsDefaultStorageSet()) | |
146 | cdb->SetDefaultStorage("raw://"); | |
147 | if (cdb->GetRun() < 0) | |
148 | cdb->SetRun(runNb); | |
149 | /* init TOF calib */ | |
150 | if (!fTOFcalib->Init()) { | |
151 | AliError("cannot init TOF calib"); | |
152 | return kFALSE; | |
153 | } | |
154 | /* get GRP data */ | |
155 | if (!fGRPManager->ReadGRPEntry()) { | |
156 | AliError("error while reading \"GRPEntry\" from OCDB"); | |
157 | return kFALSE; | |
158 | } | |
159 | fkGRPObject = fGRPManager->GetGRPData(); | |
160 | if (!fkGRPObject) { | |
161 | AliError("cannot get \"GRPData\" from GRP manager"); | |
162 | return kFALSE; | |
163 | } | |
164 | fStartTime = fkGRPObject->GetTimeStart(); | |
165 | fEndTime = fkGRPObject->GetTimeEnd(); | |
166 | AliInfo(Form("got \"GRPData\": startTime=%d, endTime=%d", fStartTime, fEndTime)); | |
167 | ||
168 | AliInfo(Form("initialized for run %d", runNb)); | |
169 | fInitFlag = kTRUE; | |
170 | fRunNumber = runNb; | |
171 | ||
3fd7a5cd | 172 | Int_t useBPTX = fTOFcalib->GetUseLHCClockPhase() ? 1 : 0; |
173 | ||
3c8efc07 | 174 | /* set histo title with run-number and start-time */ |
3fd7a5cd | 175 | fHistoVertexTimestamp->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); |
176 | fHistoDeltatTimestamp->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); | |
177 | fHistoDeltazEta->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); | |
178 | fHistoDeltazCosTheta->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); | |
179 | fHistoAcceptedTracksEtaPt->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); | |
180 | fHistoMatchedTracksEtaPt->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); | |
3c8efc07 | 181 | |
182 | return kTRUE; | |
183 | } | |
184 | ||
185 | //_______________________________________________________ | |
186 | ||
187 | Bool_t | |
188 | AliTOFAnalysisTaskCalibPass0::InitEvent() | |
189 | { | |
190 | /* | |
191 | * init event | |
192 | */ | |
193 | ||
194 | /* get ESD event */ | |
195 | fESDEvent = dynamic_cast<AliESDEvent *>(InputEvent()); | |
196 | if (!fESDEvent) return kFALSE; | |
197 | /* set event time and elapsed time */ | |
198 | fEventTime = fESDEvent->GetTimeStamp(); | |
199 | fElapsedTime = fESDEvent->GetTimeStamp() - fStartTime; | |
200 | /* event selection */ | |
201 | if (fEventSelectionFlag && !fEventCuts->IsCollisionCandidate(fESDEvent)) return kFALSE; | |
202 | /* vertex selection */ | |
203 | fkVertex = fESDEvent->GetPrimaryVertexTracks(); | |
204 | if (fVertexSelectionFlag && fkVertex->GetNContributors() < 1) { | |
205 | fkVertex = fESDEvent->GetPrimaryVertexSPD(); | |
206 | if (fkVertex->GetNContributors() < 1) return kFALSE; | |
207 | } | |
208 | if (fVertexSelectionFlag && TMath::Abs(fkVertex->GetZ()) > fVertexCut) return kFALSE; | |
209 | /* calibrate ESD if requested */ | |
210 | fTOFcalib->CalibrateESD(fESDEvent); | |
211 | ||
212 | return kTRUE; | |
213 | } | |
214 | ||
215 | //_______________________________________________________ | |
216 | ||
217 | Bool_t | |
218 | AliTOFAnalysisTaskCalibPass0::HasTOFMeasurement(const AliESDtrack *track) const | |
219 | { | |
220 | /* | |
221 | * has TOF measurement | |
222 | */ | |
223 | ||
224 | /* check TOF status flags */ | |
225 | if (!(track->GetStatus() & AliESDtrack::kTOFout) || | |
226 | !(track->GetStatus() & AliESDtrack::kTIME)) return kFALSE; | |
227 | /* check integrated length */ | |
228 | if (track->GetIntegratedLength() < 350.) return kFALSE; | |
229 | ||
230 | /* TOF measurement ok */ | |
231 | return kTRUE; | |
232 | } | |
233 | ||
234 | //_______________________________________________________ | |
235 | ||
236 | void | |
237 | AliTOFAnalysisTaskCalibPass0::UserCreateOutputObjects() | |
238 | { | |
239 | /* | |
240 | * user create output objects | |
241 | */ | |
242 | ||
243 | /* time binning */ | |
244 | Int_t timeBins = 288; | |
245 | Float_t timeMin = 0.; | |
246 | Float_t timeMax = 24. * 3600.; | |
247 | /* vertex binning */ | |
248 | Int_t vertexBins = 200; | |
249 | Float_t vertexMin = -50.; | |
250 | Float_t vertexMax = 50.; | |
251 | /* deltat binning */ | |
252 | Int_t deltatBins = 2000; | |
253 | Float_t deltatMin = -24400.; | |
254 | Float_t deltatMax = 24400.; | |
255 | /* deltaz binning */ | |
256 | Int_t deltazBins = 200; | |
257 | Float_t deltazMin = -10.; | |
258 | Float_t deltazMax = 10.; | |
259 | /* eta binning */ | |
260 | Int_t etaBins = 200; | |
261 | Float_t etaMin = -1.; | |
262 | Float_t etaMax = 1.; | |
263 | /* p binning */ | |
264 | Int_t pBins = 500; | |
265 | Float_t pMin = 0.; | |
266 | Float_t pMax = 5.; | |
267 | ||
268 | fHistoVertexTimestamp = new TH2F("hHistoVertexTimestamp", "Vertex position;elapsed time (s);z (cm);", timeBins, timeMin, timeMax, vertexBins, vertexMin, vertexMax); | |
269 | fHistoList->Add(fHistoVertexTimestamp); | |
270 | ||
271 | fHistoDeltatTimestamp = new TH2F("hHistoDeltatTimestamp", "Global time shift (T0-fill);elapsed time (s);t - t_{exp}^{(#pi)} (ps);", timeBins, timeMin, timeMax, deltatBins, deltatMin, deltatMax); | |
272 | fHistoList->Add(fHistoDeltatTimestamp); | |
273 | ||
274 | fHistoDeltazEta = new TH2F("hHistoDeltazEta", "Matching residuals (longitudinal);#eta;#Deltaz (cm);", etaBins, etaMin, etaMax, deltazBins, deltazMin, deltazMax); | |
275 | fHistoList->Add(fHistoDeltazEta); | |
276 | ||
277 | fHistoDeltazCosTheta = new TH2F("hHistoDeltazCosTheta", "Matching residuals (longitudinal);cos #theta;#Deltaz (cm);", etaBins, etaMin, etaMax, deltazBins, deltazMin, deltazMax); | |
278 | fHistoList->Add(fHistoDeltazCosTheta); | |
279 | ||
280 | fHistoAcceptedTracksEtaPt = new TH2F("hHistoAcceptedTracksEtaPt", "Accepted tracks;#eta;#p_{T} (GeV/c);", etaBins, etaMin, etaMax, pBins, pMin, pMax); | |
281 | fHistoList->Add(fHistoAcceptedTracksEtaPt); | |
282 | ||
283 | fHistoMatchedTracksEtaPt = new TH2F("hHistoMatchedTracksEtaPt", "Matched tracks;#eta;p_{T} (GeV/c);", etaBins, etaMin, etaMax, pBins, pMin, pMax); | |
284 | fHistoList->Add(fHistoMatchedTracksEtaPt); | |
285 | ||
286 | /* post data */ | |
287 | PostData(1, fHistoList); | |
288 | } | |
289 | ||
290 | //_______________________________________________________ | |
291 | ||
292 | void | |
293 | AliTOFAnalysisTaskCalibPass0::UserExec(Option_t *) | |
294 | { | |
295 | /* | |
296 | * user exec | |
297 | */ | |
298 | ||
299 | /* init run */ | |
300 | if (!InitRun()) return; | |
301 | /* init event */ | |
302 | if (!InitEvent()) return; | |
303 | ||
304 | /*** ACCEPTED EVENT ***/ | |
305 | ||
306 | /* fill vertex histo */ | |
307 | fHistoVertexTimestamp->Fill(fElapsedTime, fkVertex->GetZ()); | |
308 | ||
309 | /* loop over ESD tracks */ | |
310 | Int_t nTracks = fESDEvent->GetNumberOfTracks(); | |
311 | AliESDtrack *track; | |
312 | Double_t eta, costheta, pt, time, timei[AliPID::kSPECIES], deltat, deltaz; | |
313 | for (Int_t itrk = 0; itrk < nTracks; itrk++) { | |
314 | /* get track */ | |
315 | track = fESDEvent->GetTrack(itrk); | |
316 | if (!track) continue; | |
317 | /* check accept track */ | |
318 | if (!fTrackCuts->AcceptTrack(track)) continue; | |
319 | /* get track info */ | |
320 | eta = track->Eta(); | |
321 | costheta = TMath::Cos(track->Theta()); | |
322 | pt = track->Pt(); | |
323 | /* fill accepted tracks histo */ | |
324 | fHistoAcceptedTracksEtaPt->Fill(eta, pt); | |
325 | /* check TOF measurement */ | |
326 | if (!HasTOFMeasurement(track)) continue; | |
327 | ||
328 | /*** ACCEPTED TRACK WITH TOF MEASUREMENT ***/ | |
329 | ||
330 | /* fill matched tracks histo */ | |
331 | fHistoMatchedTracksEtaPt->Fill(eta, pt); | |
332 | /* get TOF info */ | |
333 | time = track->GetTOFsignal(); | |
334 | track->GetIntegratedTimes(timei); | |
335 | deltat = time - timei[AliPID::kPion]; | |
336 | deltaz = track->GetTOFsignalDz(); | |
337 | ||
338 | /* fill histos */ | |
339 | fHistoDeltatTimestamp->Fill(fElapsedTime, deltat); | |
340 | fHistoDeltazEta->Fill(eta, deltaz); | |
341 | fHistoDeltazCosTheta->Fill(costheta, deltaz); | |
342 | ||
343 | } /* end of loop over ESD tracks */ | |
344 | ||
345 | /* post data */ | |
346 | PostData(1, fHistoList); | |
347 | ||
348 | } | |
349 | ||
350 | //_______________________________________________________ | |
351 | ||
07901ecf | 352 | Int_t |
353 | AliTOFAnalysisTaskCalibPass0::GetStatus() | |
354 | { | |
355 | /* | |
356 | * get status | |
357 | */ | |
358 | ||
359 | switch (fStatus) { | |
360 | ||
361 | /* OK, return zero */ | |
362 | case kOk: | |
363 | return 0; | |
364 | break; | |
365 | ||
366 | /* non-fatal error, return negative status */ | |
367 | case kNotActive: | |
368 | case kLowStatistics: | |
369 | case kNoMeasurement: | |
370 | return -fStatus; | |
371 | break; | |
372 | ||
373 | /* fatal error, return positive status */ | |
374 | case kInputError: | |
375 | case kDataError: | |
376 | case kStoreError: | |
377 | return fStatus; | |
378 | break; | |
379 | ||
380 | /* anything else, return negative large number */ | |
381 | default: | |
382 | return -999; | |
383 | break; | |
384 | } | |
385 | ||
386 | /* should never arrive here, anyway return negative large number */ | |
387 | return -999; | |
388 | } | |
389 | ||
390 | //_______________________________________________________ | |
391 | ||
74739444 | 392 | void |
393 | AliTOFAnalysisTaskCalibPass0::PrintStatus() | |
3c8efc07 | 394 | { |
395 | /* | |
74739444 | 396 | * print status |
3c8efc07 | 397 | */ |
398 | ||
07901ecf | 399 | Int_t status = GetStatus(); |
400 | if (status == 0) { | |
401 | AliInfo(Form("TOF calibration successful: %s (status=%d)", fgkStatusCodeName[fStatus], status)); | |
402 | } | |
403 | else if (status > 0) { | |
404 | AliInfo(Form("TOF calibration failed: %s (status=%d)", fgkStatusCodeName[fStatus], status)); | |
405 | } | |
406 | else if (status < 0) { | |
407 | AliInfo(Form("TOF calibration failed (expected): %s (status=%d)", fgkStatusCodeName[fStatus], status)); | |
408 | } | |
409 | ||
74739444 | 410 | } |
411 | ||
412 | //_______________________________________________________ | |
413 | ||
414 | Bool_t | |
a9f9c69b | 415 | AliTOFAnalysisTaskCalibPass0::ProcessOutput(const Char_t *filename, AliCDBStorage* db) |
74739444 | 416 | { |
417 | /* | |
418 | * process output | |
419 | */ | |
420 | ||
a9f9c69b | 421 | Int_t ret = DoProcessOutput(filename, db); |
74739444 | 422 | PrintStatus(); |
07901ecf | 423 | return ret; |
424 | } | |
425 | ||
426 | //_______________________________________________________ | |
427 | ||
428 | Bool_t | |
a9f9c69b | 429 | AliTOFAnalysisTaskCalibPass0::DoProcessOutput(const Char_t *filename, AliCDBStorage *db) |
07901ecf | 430 | { |
431 | /* | |
432 | * do process output | |
433 | */ | |
434 | ||
435 | /* reset status to OK */ | |
436 | fStatus = kOk; | |
437 | ||
3c8efc07 | 438 | /* open file */ |
439 | TFile *file = TFile::Open(filename); | |
440 | if (!file || !file->IsOpen()) { | |
441 | AliError(Form("cannot open output file %s", filename)); | |
07901ecf | 442 | fStatus = kInputError; |
3c8efc07 | 443 | return kFALSE; |
444 | } | |
36c9ca5c | 445 | /* get histograms */ |
87ddb812 | 446 | TList *list = (TList *)file->Get("TOFHistos"); |
36c9ca5c | 447 | TH2F *histoVertexTimestamp = NULL; |
448 | TH2F *histoDeltatTimestamp = NULL; | |
449 | TH2F *histoDeltazEta = NULL; | |
450 | TH2F *histoDeltazCosTheta = NULL; | |
451 | TH2F *histoAcceptedTracksEtaPt = NULL; | |
452 | TH2F *histoMatchedTracksEtaPt = NULL; | |
453 | if (list) { | |
454 | AliInfo(Form("getting histograms from \"Histos\" list from file %s", filename)); | |
455 | histoVertexTimestamp = (TH2F *)list->FindObject("hHistoVertexTimestamp"); | |
456 | histoDeltatTimestamp = (TH2F *)list->FindObject("hHistoDeltatTimestamp"); | |
457 | histoDeltazEta = (TH2F *)list->FindObject("hHistoDeltazEta"); | |
458 | histoDeltazCosTheta = (TH2F *)list->FindObject("hHistoDeltazCosTheta"); | |
459 | histoAcceptedTracksEtaPt = (TH2F *)list->FindObject("hHistoAcceptedTracksEtaPt"); | |
460 | histoMatchedTracksEtaPt = (TH2F *)list->FindObject("hHistoMatchedTracksEtaPt"); | |
461 | } | |
462 | else { | |
463 | AliInfo(Form("getting histograms directly from file %s", filename)); | |
464 | histoVertexTimestamp = (TH2F *)file->Get("hHistoVertexTimestamp"); | |
465 | histoDeltatTimestamp = (TH2F *)file->Get("hHistoDeltatTimestamp"); | |
466 | histoDeltazEta = (TH2F *)file->Get("hHistoDeltazEta"); | |
467 | histoDeltazCosTheta = (TH2F *)file->Get("hHistoDeltazCosTheta"); | |
468 | histoAcceptedTracksEtaPt = (TH2F *)file->Get("hHistoAcceptedTracksEtaPt"); | |
469 | histoMatchedTracksEtaPt = (TH2F *)file->Get("hHistoMatchedTracksEtaPt"); | |
3c8efc07 | 470 | } |
36c9ca5c | 471 | /* check histos */ |
3c8efc07 | 472 | if (!histoVertexTimestamp) { |
473 | AliError(Form("cannot get \"hHistoVertexTimestamp\" object from file %s", filename)); | |
07901ecf | 474 | fStatus = kInputError; |
3c8efc07 | 475 | return kFALSE; |
476 | } | |
3c8efc07 | 477 | if (!histoDeltatTimestamp) { |
478 | AliError(Form("cannot get \"hHistoDeltatTimestamp\" object from file %s", filename)); | |
07901ecf | 479 | fStatus = kInputError; |
3c8efc07 | 480 | return kFALSE; |
481 | } | |
3c8efc07 | 482 | if (!histoDeltazEta) { |
483 | AliError(Form("cannot get \"hHistoDeltazEta\" object from file %s", filename)); | |
07901ecf | 484 | fStatus = kInputError; |
3c8efc07 | 485 | return kFALSE; |
486 | } | |
3c8efc07 | 487 | if (!histoDeltazCosTheta) { |
488 | AliError(Form("cannot get \"hHistoDeltazCosTheta\" object from file %s", filename)); | |
07901ecf | 489 | fStatus = kInputError; |
3c8efc07 | 490 | return kFALSE; |
491 | } | |
3c8efc07 | 492 | if (!histoAcceptedTracksEtaPt) { |
493 | AliError(Form("cannot get \"hHistoAccptedTracksEtaPt\" object from file %s", filename)); | |
07901ecf | 494 | fStatus = kInputError; |
3c8efc07 | 495 | return kFALSE; |
496 | } | |
3c8efc07 | 497 | if (!histoMatchedTracksEtaPt) { |
498 | AliError(Form("cannot get \"hHistoMatchedTracksEtaPt\" object from file %s", filename)); | |
07901ecf | 499 | fStatus = kInputError; |
3c8efc07 | 500 | return kFALSE; |
501 | } | |
07901ecf | 502 | |
3c8efc07 | 503 | /* check matching performance */ |
504 | if (!CheckMatchingPerformance(histoDeltazEta, histoAcceptedTracksEtaPt, histoMatchedTracksEtaPt)) { | |
505 | AliError("error while checking matching efficiency"); | |
506 | return kFALSE; | |
507 | } | |
508 | /* calibrate and store */ | |
a9f9c69b | 509 | if (!CalibrateAndStore(histoVertexTimestamp, histoDeltatTimestamp, db)) { |
3c8efc07 | 510 | AliError("error while calibrating and storing"); |
511 | return kFALSE; | |
512 | } | |
513 | ||
514 | /* success */ | |
515 | return kTRUE; | |
516 | } | |
517 | ||
518 | //_______________________________________________________ | |
519 | ||
520 | Bool_t | |
521 | AliTOFAnalysisTaskCalibPass0::CheckMatchingPerformance(const TH2F *histoDeltazCosTheta, const TH2F *histoAcceptedTracksEtaPt, const TH2F *histoMatchedTracksEtaPt) const | |
522 | { | |
523 | /* | |
524 | * check matching performance | |
525 | */ | |
526 | ||
527 | /* check pointers */ | |
528 | if (!histoDeltazCosTheta || !histoAcceptedTracksEtaPt || !histoMatchedTracksEtaPt) | |
529 | return kFALSE; | |
530 | /* dummy for the time being */ | |
531 | return kTRUE; | |
532 | } | |
533 | ||
534 | //_______________________________________________________ | |
535 | ||
536 | Bool_t | |
a9f9c69b | 537 | AliTOFAnalysisTaskCalibPass0::CalibrateAndStore(TH2F *histoVertexTimestamp, TH2F *histoDeltatTimestamp, AliCDBStorage *db) |
3c8efc07 | 538 | { |
539 | /* | |
540 | * calibrate and store | |
541 | */ | |
542 | ||
543 | /* check pointers */ | |
544 | if (!histoVertexTimestamp || !histoDeltatTimestamp) | |
545 | return kFALSE; | |
546 | ||
547 | /*** GET RUN-NUMBER AND START-TIMESTAMP ***/ | |
548 | ||
549 | TString str; | |
550 | TObjArray *strarr = NULL; | |
551 | TObjString *ostr = NULL; | |
552 | str = histoVertexTimestamp->GetTitle(); | |
553 | strarr = str.Tokenize(","); | |
554 | if (!strarr) { | |
555 | AliError("problems whith tokenize histogram title"); | |
07901ecf | 556 | fStatus = kDataError; |
3c8efc07 | 557 | return kFALSE; |
558 | } | |
559 | ||
560 | /* run number */ | |
561 | ostr = (TObjString *)strarr->At(0); | |
562 | if (!ostr) { | |
563 | AliError("problems while getting run number from histogram title"); | |
07901ecf | 564 | fStatus = kDataError; |
09d5920f | 565 | delete strarr; |
3c8efc07 | 566 | return kFALSE; |
567 | } | |
568 | str = ostr->GetString(); | |
569 | if (!str.BeginsWith("run:")) { | |
570 | AliError("problems while getting run number from histogram title"); | |
07901ecf | 571 | fStatus = kDataError; |
09d5920f | 572 | delete strarr; |
3c8efc07 | 573 | return kFALSE; |
574 | } | |
575 | str.Remove(0, 5); | |
576 | Int_t runNb = atoi(str.Data()); | |
577 | if (runNb <= 0) { | |
578 | AliError(Form("bad run number: %d", runNb)); | |
07901ecf | 579 | fStatus = kDataError; |
09d5920f | 580 | delete strarr; |
3c8efc07 | 581 | return kFALSE; |
582 | } | |
583 | AliInfo(Form("got run number: %d", runNb)); | |
584 | ||
585 | /* start timestamp */ | |
586 | ostr = (TObjString *)strarr->At(1); | |
587 | if (!ostr) { | |
588 | AliError("problems while getting start timestamp from histogram title"); | |
07901ecf | 589 | fStatus = kDataError; |
09d5920f | 590 | delete strarr; |
3c8efc07 | 591 | return kFALSE; |
592 | } | |
593 | str = ostr->GetString(); | |
594 | str.Remove(0, 1); /* remove empty space at the beginning */ | |
595 | if (!str.BeginsWith("startTimestamp:")) { | |
596 | AliError("problems while getting start timestamp from histogram title"); | |
07901ecf | 597 | fStatus = kDataError; |
09d5920f | 598 | delete strarr; |
3c8efc07 | 599 | return kFALSE; |
600 | } | |
601 | str.Remove(0, 16); | |
602 | UInt_t startTimestamp = atoi(str.Data()); | |
603 | if (startTimestamp <= 0) { | |
604 | AliError(Form("bad start timestamp: %d", startTimestamp)); | |
07901ecf | 605 | fStatus = kDataError; |
09d5920f | 606 | delete strarr; |
3c8efc07 | 607 | return kFALSE; |
608 | } | |
609 | TTimeStamp ts = startTimestamp; | |
610 | AliInfo(Form("got start timestamp: %d (%s)", startTimestamp, ts.AsString())); | |
611 | ||
3fd7a5cd | 612 | /* BPTX */ |
613 | ostr = (TObjString *)strarr->At(2); | |
614 | if (!ostr) { | |
615 | AliError("problems while getting BPTX from histogram title"); | |
616 | fStatus = kDataError; | |
09d5920f | 617 | delete strarr; |
3fd7a5cd | 618 | return kFALSE; |
619 | } | |
620 | str = ostr->GetString(); | |
621 | str.Remove(0, 1); /* remove empty space at the beginning */ | |
622 | if (!str.BeginsWith("BPTX:")) { | |
623 | AliError("problems while getting BPTX from histogram title"); | |
624 | fStatus = kDataError; | |
09d5920f | 625 | delete strarr; |
3fd7a5cd | 626 | return kFALSE; |
627 | } | |
628 | str.Remove(0, 6); | |
629 | Bool_t useBPTX = atoi(str.Data()); | |
630 | AliInfo(Form("got BPTX: %d", useBPTX)); | |
631 | ||
09d5920f | 632 | delete strarr; |
633 | ||
3c8efc07 | 634 | /*** CALIBRATION STAGE ***/ |
635 | ||
636 | /* get fit function */ | |
637 | TF1 *fitFunc = (TF1 *)gROOT->GetFunction("gaus"); | |
638 | ||
639 | /* projection-x */ | |
640 | TH1D *histoVertexTimestamppx = histoVertexTimestamp->ProjectionX("histoVertexTimestamppx"); | |
641 | TH1D *histoDeltatTimestamppx = histoDeltatTimestamp->ProjectionX("histoDeltatTimestamppx"); | |
642 | ||
07901ecf | 643 | /* check statistics */ |
644 | if (histoVertexTimestamppx->Integral() < fgMinVertexIntegral || | |
645 | histoDeltatTimestamppx->Integral() < fgMinDeltatIntegral) { | |
646 | fStatus = kLowStatistics; | |
647 | return kFALSE; | |
648 | } | |
649 | ||
3c8efc07 | 650 | /* define mix and max time bin */ |
651 | Int_t minBin = histoVertexTimestamppx->FindFirstBinAbove(0); | |
652 | Int_t maxBin = histoVertexTimestamppx->FindLastBinAbove(0); | |
653 | Float_t minTime = histoVertexTimestamppx->GetBinLowEdge(minBin); | |
654 | Float_t maxTime = histoVertexTimestamppx->GetBinLowEdge(maxBin + 1); | |
655 | AliInfo(Form("min/max time defined: %d < t < %d s [%d, %d]", (Int_t)minTime, (Int_t)maxTime, minBin, maxBin)); | |
656 | ||
657 | /* loop over time bins */ | |
658 | Int_t nPoints = 0; | |
659 | Float_t time[fgkMaxNumberOfPoints], timeerr[fgkMaxNumberOfPoints]; | |
660 | Float_t vertexMean[fgkMaxNumberOfPoints], vertexMeanerr[fgkMaxNumberOfPoints]; | |
661 | Float_t vertexSigma[fgkMaxNumberOfPoints], vertexSigmaerr[fgkMaxNumberOfPoints]; | |
662 | Float_t timeZeroMean[fgkMaxNumberOfPoints], timeZeroMeanerr[fgkMaxNumberOfPoints]; | |
663 | Float_t timeZeroSigma[fgkMaxNumberOfPoints], timeZeroSigmaerr[fgkMaxNumberOfPoints]; | |
664 | Float_t averageTimeZero = 0.; | |
665 | Float_t averageTimeSigma = 0.; | |
666 | Float_t averageVertexSpread = 0.; | |
667 | for (Int_t ibin = minBin; ibin <= maxBin; ibin++) { | |
668 | ||
669 | /* define time window */ | |
670 | Int_t startBin = ibin; | |
671 | Int_t endBin = ibin; | |
d501ffec | 672 | while(histoVertexTimestamppx->Integral(startBin, endBin) < fgMinVertexIntegralSample || |
673 | histoDeltatTimestamppx->Integral(startBin, endBin) < fgMinDeltatIntegralSample) { | |
3c8efc07 | 674 | if (endBin < maxBin) endBin++; |
675 | else if (startBin > minBin) startBin--; | |
676 | else break; | |
677 | } | |
d501ffec | 678 | if (histoVertexTimestamppx->Integral(startBin, endBin) < fgMinVertexIntegral || |
679 | histoDeltatTimestamppx->Integral(startBin, endBin) < fgMinDeltatIntegral) continue; | |
3c8efc07 | 680 | Float_t startTime = histoVertexTimestamppx->GetBinLowEdge(startBin); |
681 | Float_t endTime = histoVertexTimestamppx->GetBinLowEdge(endBin + 1); | |
682 | Float_t vertexIntegral = histoVertexTimestamppx->Integral(startBin, endBin); | |
683 | Float_t deltatIntegral = histoDeltatTimestamppx->Integral(startBin, endBin); | |
684 | 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)); | |
685 | ||
686 | /* projection-y */ | |
687 | TH1D *histoVertexTimestamppy = histoVertexTimestamp->ProjectionY("histoVertexTimestamppy", startBin, endBin); | |
688 | TH1D *histoDeltatTimestamppy = histoDeltatTimestamp->ProjectionY("histoDeltatTimestamppy", startBin, endBin); | |
689 | ||
690 | /* average time */ | |
691 | histoVertexTimestamppx->GetXaxis()->SetRange(startBin, endBin); | |
692 | time[nPoints] = histoVertexTimestamppx->GetMean(); | |
693 | timeerr[nPoints] = histoVertexTimestamppx->GetMeanError(); | |
694 | ||
695 | /* fit vertex */ | |
696 | if (FitPeak(fitFunc, histoVertexTimestamppy, 10., 3., 3.) != 0) { | |
697 | AliError("troubles fitting vertex, skip"); | |
698 | delete histoVertexTimestamppy; | |
699 | delete histoDeltatTimestamppy; | |
700 | continue; | |
701 | } | |
702 | vertexMean[nPoints] = fitFunc->GetParameter(1); | |
703 | vertexMeanerr[nPoints] = fitFunc->GetParError(1); | |
704 | vertexSigma[nPoints] = fitFunc->GetParameter(2); | |
705 | vertexSigmaerr[nPoints] = fitFunc->GetParError(2); | |
706 | averageVertexSpread += fitFunc->GetParameter(2); | |
707 | ||
708 | /* fit time-zero */ | |
709 | if (FitPeak(fitFunc, histoDeltatTimestamppy, 500., 2., 1.) != 0) { | |
710 | AliError("troubles fitting time-zero TRACKS, skip"); | |
711 | delete histoVertexTimestamppy; | |
712 | delete histoDeltatTimestamppy; | |
713 | continue; | |
714 | } | |
715 | timeZeroMean[nPoints] = fitFunc->GetParameter(1); | |
716 | timeZeroMeanerr[nPoints] = fitFunc->GetParError(1); | |
717 | timeZeroSigma[nPoints] = fitFunc->GetParameter(2); | |
718 | timeZeroSigmaerr[nPoints] = fitFunc->GetParError(2); | |
719 | averageTimeZero += fitFunc->GetParameter(1); | |
720 | averageTimeSigma += fitFunc->GetParameter(2); | |
721 | ||
722 | /* delete projection-y */ | |
723 | delete histoVertexTimestamppy; | |
724 | delete histoDeltatTimestamppy; | |
725 | ||
726 | /* increment n points */ | |
727 | nPoints++; | |
728 | ||
729 | /* set current bin */ | |
730 | ibin = endBin; | |
731 | ||
732 | } /* end of loop over time bins */ | |
733 | ||
734 | /* delete projection-x */ | |
735 | delete histoVertexTimestamppx; | |
736 | delete histoDeltatTimestamppx; | |
737 | ||
738 | /* check points */ | |
739 | if (nPoints <= 0) { | |
740 | AliError("no measurement available, quit"); | |
07901ecf | 741 | fStatus = kNoMeasurement; |
3c8efc07 | 742 | return kFALSE; |
743 | } | |
744 | AliInfo(Form("average time-zero = %f", averageTimeZero / nPoints)); | |
745 | AliInfo(Form("average time-sigma = %f", averageTimeSigma / nPoints)); | |
746 | AliInfo(Form("average v-spread = %f", averageVertexSpread / nPoints)); | |
747 | ||
748 | /*** CREATE RUN PARAMS OBJECT ***/ | |
749 | ||
750 | #if 0 | |
751 | /* get start time from GRP */ | |
752 | TGrid::Connect("alien://", 0, 0, "t"); | |
753 | AliCDBManager *cdb = AliCDBManager::Instance(); | |
754 | cdb->SetDefaultStorage("raw://"); | |
755 | cdb->SetRun(runNb); | |
756 | AliGRPManager grp; | |
757 | if (!grp.ReadGRPEntry()) { | |
758 | AliError("error while reading GRP entry"); | |
759 | return kFALSE; | |
760 | } | |
761 | UInt_t startTimestamp = grp.GetGRPData()->GetTimeStart(); | |
762 | TTimeStamp ts; | |
763 | ts = startTimestamp; | |
764 | AliInfo(Form("got start time from GRP: %s", ts.AsString())); | |
765 | #endif | |
766 | ||
767 | /* create arrays */ | |
768 | UInt_t timestamp[fgkMaxNumberOfPoints]; | |
769 | Float_t t0[fgkMaxNumberOfPoints]; | |
770 | Float_t tofReso[fgkMaxNumberOfPoints]; | |
771 | Float_t t0Spread[fgkMaxNumberOfPoints]; | |
772 | for (Int_t ipoint = 0; ipoint < nPoints; ipoint++) { | |
7ca3d6d6 | 773 | timestamp[ipoint] = (UInt_t)time[ipoint] + startTimestamp; |
3c8efc07 | 774 | t0[ipoint] = timeZeroMean[ipoint]; |
775 | tofReso[ipoint] = timeZeroSigma[ipoint]; | |
776 | t0Spread[ipoint] = vertexSigma[ipoint] / 2.99792457999999984e-02; | |
777 | } | |
778 | UInt_t run[1] = {runNb}; | |
779 | UInt_t runFirstPoint[1] = {0}; | |
780 | UInt_t runLastPoint[1] = {nPoints - 1}; | |
781 | ||
782 | /* create run params object */ | |
783 | AliTOFRunParams obj(nPoints, 1); | |
784 | AliInfo(Form("create run params object for run %d with %d points", runNb, nPoints)); | |
785 | obj.SetTimestamp(timestamp); | |
786 | obj.SetT0(t0); | |
787 | obj.SetTOFResolution(tofReso); | |
788 | obj.SetT0Spread(t0Spread); | |
789 | obj.SetRunNb(run); | |
790 | obj.SetRunFirstPoint(runFirstPoint); | |
791 | obj.SetRunLastPoint(runLastPoint); | |
3fd7a5cd | 792 | obj.SetUseLHCClockPhase(useBPTX); |
3c8efc07 | 793 | |
794 | /*** CREATE OCDB ENTRY ***/ | |
795 | ||
a9f9c69b | 796 | if (!db) { |
797 | AliError("cannot store object because of NULL storage"); | |
07901ecf | 798 | fStatus = kStoreError; |
3c8efc07 | 799 | return kFALSE; |
800 | } | |
801 | ||
802 | /* install run params object in OCDB */ | |
3c8efc07 | 803 | AliCDBId id("TOF/Calib/RunParams", runNb, runNb); |
804 | AliCDBMetaData md; | |
805 | md.SetResponsible("Roberto Preghenella"); | |
806 | md.SetComment("offline TOF run parameters"); | |
807 | md.SetAliRootVersion(gSystem->Getenv("ARVERSION")); | |
808 | md.SetBeamPeriod(0); | |
a9f9c69b | 809 | if (!db->Put(&obj, id, &md)) { |
07901ecf | 810 | fStatus = kStoreError; |
a9f9c69b | 811 | AliError(Form("error while putting object in storage %s", db->GetURI().Data())); |
07901ecf | 812 | return kFALSE; |
3c8efc07 | 813 | } |
814 | ||
815 | /* success */ | |
816 | return kTRUE; | |
817 | } | |
818 | ||
819 | //_____________________________________________________________ | |
820 | ||
821 | Int_t | |
822 | AliTOFAnalysisTaskCalibPass0::FitPeak(TF1 *fitFunc, TH1D *h, Float_t startSigma, Float_t nSigmaMin, Float_t nSigmaMax) | |
823 | { | |
824 | /* | |
825 | * fit peak | |
826 | */ | |
827 | ||
828 | Double_t fitCent = h->GetBinCenter(h->GetMaximumBin()); | |
829 | Double_t fitMin = fitCent - nSigmaMin * startSigma; | |
830 | Double_t fitMax = fitCent + nSigmaMax * startSigma; | |
831 | if (fitMin < h->GetXaxis()->GetXmin()) fitMin = h->GetXaxis()->GetXmin(); | |
832 | if (fitMax > h->GetXaxis()->GetXmax()) fitMax = h->GetXaxis()->GetXmax(); | |
833 | fitFunc->SetParameter(1, fitCent); | |
834 | fitFunc->SetParameter(2, startSigma); | |
835 | Int_t fitres = h->Fit(fitFunc, "WWq0", "", fitMin, fitMax); | |
836 | if (fitres != 0) return fitres; | |
837 | /* refit with better range */ | |
838 | for (Int_t i = 0; i < 3; i++) { | |
839 | fitCent = fitFunc->GetParameter(1); | |
840 | fitMin = fitCent - nSigmaMin * fitFunc->GetParameter(2); | |
841 | fitMax = fitCent + nSigmaMax * fitFunc->GetParameter(2); | |
842 | if (fitMin < h->GetXaxis()->GetXmin()) fitMin = h->GetXaxis()->GetXmin(); | |
843 | if (fitMax > h->GetXaxis()->GetXmax()) fitMax = h->GetXaxis()->GetXmax(); | |
844 | fitres = h->Fit(fitFunc, "q0", "", fitMin, fitMax); | |
845 | if (fitres != 0) return fitres; | |
846 | } | |
847 | return fitres; | |
848 | } |