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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), | |
6ed6117d | 95 | fHistoDeltatEta(NULL), |
3c8efc07 | 96 | fHistoDeltazCosTheta(NULL), |
97 | fHistoAcceptedTracksEtaPt(NULL), | |
98 | fHistoMatchedTracksEtaPt(NULL) | |
99 | { | |
100 | /* | |
101 | * default constructor | |
102 | */ | |
103 | ||
104 | /* define output */ | |
105 | fHistoList->SetOwner(kTRUE); | |
106 | DefineOutput(1, TList::Class()); | |
107 | } | |
108 | ||
109 | //_______________________________________________________ | |
110 | ||
111 | AliTOFAnalysisTaskCalibPass0::~AliTOFAnalysisTaskCalibPass0() | |
112 | { | |
113 | /* | |
114 | * default destructor | |
115 | */ | |
116 | ||
117 | if (fHistoList) delete fHistoList; | |
118 | } | |
119 | ||
120 | //_______________________________________________________ | |
121 | ||
122 | Bool_t | |
123 | AliTOFAnalysisTaskCalibPass0::InitRun() | |
124 | { | |
125 | /* | |
126 | * init run | |
127 | */ | |
128 | ||
129 | /* get ESD event */ | |
130 | fESDEvent = dynamic_cast<AliESDEvent *>(InputEvent()); | |
131 | if (!fESDEvent) { | |
132 | AliError("cannot get ESD event"); | |
133 | return kFALSE; | |
134 | } | |
135 | /* get run number */ | |
136 | Int_t runNb = fESDEvent->GetRunNumber(); | |
137 | /* check run already initialized */ | |
138 | if (fInitFlag && fRunNumber == runNb) return kTRUE; | |
139 | if (fInitFlag && fRunNumber != runNb) { | |
140 | AliFatal(Form("run number has changed within same job and this is not allowed: %d -> %d", fRunNumber, runNb)); | |
141 | return kTRUE; | |
142 | } | |
143 | fInitFlag = kFALSE; | |
144 | /* init cdb if not yet done */ | |
145 | AliCDBManager *cdb = AliCDBManager::Instance(); | |
146 | if (!cdb->IsDefaultStorageSet()) | |
147 | cdb->SetDefaultStorage("raw://"); | |
148 | if (cdb->GetRun() < 0) | |
149 | cdb->SetRun(runNb); | |
150 | /* init TOF calib */ | |
151 | if (!fTOFcalib->Init()) { | |
152 | AliError("cannot init TOF calib"); | |
153 | return kFALSE; | |
154 | } | |
155 | /* get GRP data */ | |
156 | if (!fGRPManager->ReadGRPEntry()) { | |
157 | AliError("error while reading \"GRPEntry\" from OCDB"); | |
158 | return kFALSE; | |
159 | } | |
160 | fkGRPObject = fGRPManager->GetGRPData(); | |
161 | if (!fkGRPObject) { | |
162 | AliError("cannot get \"GRPData\" from GRP manager"); | |
163 | return kFALSE; | |
164 | } | |
165 | fStartTime = fkGRPObject->GetTimeStart(); | |
166 | fEndTime = fkGRPObject->GetTimeEnd(); | |
167 | AliInfo(Form("got \"GRPData\": startTime=%d, endTime=%d", fStartTime, fEndTime)); | |
168 | ||
169 | AliInfo(Form("initialized for run %d", runNb)); | |
170 | fInitFlag = kTRUE; | |
171 | fRunNumber = runNb; | |
172 | ||
3fd7a5cd | 173 | Int_t useBPTX = fTOFcalib->GetUseLHCClockPhase() ? 1 : 0; |
174 | ||
3c8efc07 | 175 | /* set histo title with run-number and start-time */ |
3fd7a5cd | 176 | fHistoVertexTimestamp->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); |
177 | fHistoDeltatTimestamp->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); | |
178 | fHistoDeltazEta->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); | |
6ed6117d | 179 | fHistoDeltatEta->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); |
3fd7a5cd | 180 | fHistoDeltazCosTheta->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); |
181 | fHistoAcceptedTracksEtaPt->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); | |
182 | fHistoMatchedTracksEtaPt->SetTitle(Form("run: %d, startTimestamp: %u, BPTX: %d", fRunNumber, fStartTime, useBPTX)); | |
3c8efc07 | 183 | |
184 | return kTRUE; | |
185 | } | |
186 | ||
187 | //_______________________________________________________ | |
188 | ||
189 | Bool_t | |
190 | AliTOFAnalysisTaskCalibPass0::InitEvent() | |
191 | { | |
192 | /* | |
193 | * init event | |
194 | */ | |
195 | ||
196 | /* get ESD event */ | |
197 | fESDEvent = dynamic_cast<AliESDEvent *>(InputEvent()); | |
198 | if (!fESDEvent) return kFALSE; | |
199 | /* set event time and elapsed time */ | |
200 | fEventTime = fESDEvent->GetTimeStamp(); | |
201 | fElapsedTime = fESDEvent->GetTimeStamp() - fStartTime; | |
202 | /* event selection */ | |
203 | if (fEventSelectionFlag && !fEventCuts->IsCollisionCandidate(fESDEvent)) return kFALSE; | |
204 | /* vertex selection */ | |
205 | fkVertex = fESDEvent->GetPrimaryVertexTracks(); | |
206 | if (fVertexSelectionFlag && fkVertex->GetNContributors() < 1) { | |
207 | fkVertex = fESDEvent->GetPrimaryVertexSPD(); | |
208 | if (fkVertex->GetNContributors() < 1) return kFALSE; | |
209 | } | |
210 | if (fVertexSelectionFlag && TMath::Abs(fkVertex->GetZ()) > fVertexCut) return kFALSE; | |
211 | /* calibrate ESD if requested */ | |
212 | fTOFcalib->CalibrateESD(fESDEvent); | |
213 | ||
214 | return kTRUE; | |
215 | } | |
216 | ||
217 | //_______________________________________________________ | |
218 | ||
219 | Bool_t | |
220 | AliTOFAnalysisTaskCalibPass0::HasTOFMeasurement(const AliESDtrack *track) const | |
221 | { | |
222 | /* | |
223 | * has TOF measurement | |
224 | */ | |
225 | ||
226 | /* check TOF status flags */ | |
227 | if (!(track->GetStatus() & AliESDtrack::kTOFout) || | |
228 | !(track->GetStatus() & AliESDtrack::kTIME)) return kFALSE; | |
229 | /* check integrated length */ | |
230 | if (track->GetIntegratedLength() < 350.) return kFALSE; | |
231 | ||
232 | /* TOF measurement ok */ | |
233 | return kTRUE; | |
234 | } | |
235 | ||
236 | //_______________________________________________________ | |
237 | ||
238 | void | |
239 | AliTOFAnalysisTaskCalibPass0::UserCreateOutputObjects() | |
240 | { | |
241 | /* | |
242 | * user create output objects | |
243 | */ | |
244 | ||
245 | /* time binning */ | |
246 | Int_t timeBins = 288; | |
247 | Float_t timeMin = 0.; | |
248 | Float_t timeMax = 24. * 3600.; | |
249 | /* vertex binning */ | |
250 | Int_t vertexBins = 200; | |
251 | Float_t vertexMin = -50.; | |
252 | Float_t vertexMax = 50.; | |
253 | /* deltat binning */ | |
254 | Int_t deltatBins = 2000; | |
255 | Float_t deltatMin = -24400.; | |
256 | Float_t deltatMax = 24400.; | |
257 | /* deltaz binning */ | |
258 | Int_t deltazBins = 200; | |
259 | Float_t deltazMin = -10.; | |
260 | Float_t deltazMax = 10.; | |
261 | /* eta binning */ | |
262 | Int_t etaBins = 200; | |
263 | Float_t etaMin = -1.; | |
264 | Float_t etaMax = 1.; | |
265 | /* p binning */ | |
266 | Int_t pBins = 500; | |
267 | Float_t pMin = 0.; | |
268 | Float_t pMax = 5.; | |
269 | ||
270 | fHistoVertexTimestamp = new TH2F("hHistoVertexTimestamp", "Vertex position;elapsed time (s);z (cm);", timeBins, timeMin, timeMax, vertexBins, vertexMin, vertexMax); | |
271 | fHistoList->Add(fHistoVertexTimestamp); | |
272 | ||
273 | fHistoDeltatTimestamp = new TH2F("hHistoDeltatTimestamp", "Global time shift (T0-fill);elapsed time (s);t - t_{exp}^{(#pi)} (ps);", timeBins, timeMin, timeMax, deltatBins, deltatMin, deltatMax); | |
274 | fHistoList->Add(fHistoDeltatTimestamp); | |
275 | ||
276 | fHistoDeltazEta = new TH2F("hHistoDeltazEta", "Matching residuals (longitudinal);#eta;#Deltaz (cm);", etaBins, etaMin, etaMax, deltazBins, deltazMin, deltazMax); | |
277 | fHistoList->Add(fHistoDeltazEta); | |
278 | ||
6ed6117d | 279 | fHistoDeltatEta = new TH2F("hHistoDeltatEta", "Global time shift (T0-fill) vs #eta; #eta; t - t_{exp}^{(#pi)} (ps);", etaBins, etaMin, etaMax, deltatBins, deltatMin, deltatMax); |
280 | fHistoList->Add(fHistoDeltatEta); | |
281 | ||
3c8efc07 | 282 | fHistoDeltazCosTheta = new TH2F("hHistoDeltazCosTheta", "Matching residuals (longitudinal);cos #theta;#Deltaz (cm);", etaBins, etaMin, etaMax, deltazBins, deltazMin, deltazMax); |
283 | fHistoList->Add(fHistoDeltazCosTheta); | |
284 | ||
285 | fHistoAcceptedTracksEtaPt = new TH2F("hHistoAcceptedTracksEtaPt", "Accepted tracks;#eta;#p_{T} (GeV/c);", etaBins, etaMin, etaMax, pBins, pMin, pMax); | |
286 | fHistoList->Add(fHistoAcceptedTracksEtaPt); | |
287 | ||
288 | fHistoMatchedTracksEtaPt = new TH2F("hHistoMatchedTracksEtaPt", "Matched tracks;#eta;p_{T} (GeV/c);", etaBins, etaMin, etaMax, pBins, pMin, pMax); | |
289 | fHistoList->Add(fHistoMatchedTracksEtaPt); | |
290 | ||
291 | /* post data */ | |
292 | PostData(1, fHistoList); | |
293 | } | |
294 | ||
295 | //_______________________________________________________ | |
296 | ||
297 | void | |
298 | AliTOFAnalysisTaskCalibPass0::UserExec(Option_t *) | |
299 | { | |
300 | /* | |
301 | * user exec | |
302 | */ | |
303 | ||
304 | /* init run */ | |
305 | if (!InitRun()) return; | |
306 | /* init event */ | |
307 | if (!InitEvent()) return; | |
308 | ||
309 | /*** ACCEPTED EVENT ***/ | |
310 | ||
311 | /* fill vertex histo */ | |
312 | fHistoVertexTimestamp->Fill(fElapsedTime, fkVertex->GetZ()); | |
313 | ||
314 | /* loop over ESD tracks */ | |
315 | Int_t nTracks = fESDEvent->GetNumberOfTracks(); | |
316 | AliESDtrack *track; | |
59ae7ba7 | 317 | Double_t eta, costheta, pt, time, timei[AliPID::kSPECIESC], deltat, deltaz; |
3c8efc07 | 318 | for (Int_t itrk = 0; itrk < nTracks; itrk++) { |
319 | /* get track */ | |
320 | track = fESDEvent->GetTrack(itrk); | |
321 | if (!track) continue; | |
322 | /* check accept track */ | |
323 | if (!fTrackCuts->AcceptTrack(track)) continue; | |
324 | /* get track info */ | |
325 | eta = track->Eta(); | |
326 | costheta = TMath::Cos(track->Theta()); | |
327 | pt = track->Pt(); | |
328 | /* fill accepted tracks histo */ | |
329 | fHistoAcceptedTracksEtaPt->Fill(eta, pt); | |
330 | /* check TOF measurement */ | |
331 | if (!HasTOFMeasurement(track)) continue; | |
332 | ||
333 | /*** ACCEPTED TRACK WITH TOF MEASUREMENT ***/ | |
334 | ||
335 | /* fill matched tracks histo */ | |
336 | fHistoMatchedTracksEtaPt->Fill(eta, pt); | |
337 | /* get TOF info */ | |
338 | time = track->GetTOFsignal(); | |
339 | track->GetIntegratedTimes(timei); | |
340 | deltat = time - timei[AliPID::kPion]; | |
341 | deltaz = track->GetTOFsignalDz(); | |
342 | ||
343 | /* fill histos */ | |
344 | fHistoDeltatTimestamp->Fill(fElapsedTime, deltat); | |
345 | fHistoDeltazEta->Fill(eta, deltaz); | |
6ed6117d | 346 | fHistoDeltatEta->Fill(eta, deltat); |
3c8efc07 | 347 | fHistoDeltazCosTheta->Fill(costheta, deltaz); |
348 | ||
349 | } /* end of loop over ESD tracks */ | |
350 | ||
351 | /* post data */ | |
352 | PostData(1, fHistoList); | |
353 | ||
354 | } | |
355 | ||
356 | //_______________________________________________________ | |
357 | ||
07901ecf | 358 | Int_t |
359 | AliTOFAnalysisTaskCalibPass0::GetStatus() | |
360 | { | |
361 | /* | |
362 | * get status | |
363 | */ | |
364 | ||
365 | switch (fStatus) { | |
366 | ||
367 | /* OK, return zero */ | |
368 | case kOk: | |
369 | return 0; | |
370 | break; | |
371 | ||
372 | /* non-fatal error, return negative status */ | |
373 | case kNotActive: | |
374 | case kLowStatistics: | |
375 | case kNoMeasurement: | |
376 | return -fStatus; | |
377 | break; | |
378 | ||
379 | /* fatal error, return positive status */ | |
380 | case kInputError: | |
381 | case kDataError: | |
382 | case kStoreError: | |
383 | return fStatus; | |
384 | break; | |
385 | ||
386 | /* anything else, return negative large number */ | |
387 | default: | |
388 | return -999; | |
389 | break; | |
390 | } | |
391 | ||
392 | /* should never arrive here, anyway return negative large number */ | |
393 | return -999; | |
394 | } | |
395 | ||
396 | //_______________________________________________________ | |
397 | ||
74739444 | 398 | void |
399 | AliTOFAnalysisTaskCalibPass0::PrintStatus() | |
3c8efc07 | 400 | { |
401 | /* | |
74739444 | 402 | * print status |
3c8efc07 | 403 | */ |
404 | ||
07901ecf | 405 | Int_t status = GetStatus(); |
406 | if (status == 0) { | |
407 | AliInfo(Form("TOF calibration successful: %s (status=%d)", fgkStatusCodeName[fStatus], status)); | |
408 | } | |
409 | else if (status > 0) { | |
410 | AliInfo(Form("TOF calibration failed: %s (status=%d)", fgkStatusCodeName[fStatus], status)); | |
411 | } | |
412 | else if (status < 0) { | |
413 | AliInfo(Form("TOF calibration failed (expected): %s (status=%d)", fgkStatusCodeName[fStatus], status)); | |
414 | } | |
415 | ||
74739444 | 416 | } |
417 | ||
418 | //_______________________________________________________ | |
419 | ||
420 | Bool_t | |
a9f9c69b | 421 | AliTOFAnalysisTaskCalibPass0::ProcessOutput(const Char_t *filename, AliCDBStorage* db) |
74739444 | 422 | { |
423 | /* | |
424 | * process output | |
425 | */ | |
426 | ||
a9f9c69b | 427 | Int_t ret = DoProcessOutput(filename, db); |
74739444 | 428 | PrintStatus(); |
07901ecf | 429 | return ret; |
430 | } | |
431 | ||
432 | //_______________________________________________________ | |
433 | ||
434 | Bool_t | |
a9f9c69b | 435 | AliTOFAnalysisTaskCalibPass0::DoProcessOutput(const Char_t *filename, AliCDBStorage *db) |
07901ecf | 436 | { |
437 | /* | |
438 | * do process output | |
439 | */ | |
440 | ||
441 | /* reset status to OK */ | |
442 | fStatus = kOk; | |
443 | ||
3c8efc07 | 444 | /* open file */ |
445 | TFile *file = TFile::Open(filename); | |
446 | if (!file || !file->IsOpen()) { | |
447 | AliError(Form("cannot open output file %s", filename)); | |
07901ecf | 448 | fStatus = kInputError; |
3c8efc07 | 449 | return kFALSE; |
450 | } | |
36c9ca5c | 451 | /* get histograms */ |
87ddb812 | 452 | TList *list = (TList *)file->Get("TOFHistos"); |
36c9ca5c | 453 | TH2F *histoVertexTimestamp = NULL; |
454 | TH2F *histoDeltatTimestamp = NULL; | |
455 | TH2F *histoDeltazEta = NULL; | |
6ed6117d | 456 | TH2F *histoDeltatEta = NULL; |
36c9ca5c | 457 | TH2F *histoDeltazCosTheta = NULL; |
458 | TH2F *histoAcceptedTracksEtaPt = NULL; | |
459 | TH2F *histoMatchedTracksEtaPt = NULL; | |
460 | if (list) { | |
461 | AliInfo(Form("getting histograms from \"Histos\" list from file %s", filename)); | |
462 | histoVertexTimestamp = (TH2F *)list->FindObject("hHistoVertexTimestamp"); | |
463 | histoDeltatTimestamp = (TH2F *)list->FindObject("hHistoDeltatTimestamp"); | |
464 | histoDeltazEta = (TH2F *)list->FindObject("hHistoDeltazEta"); | |
6ed6117d | 465 | histoDeltatEta = (TH2F *)list->FindObject("hHistoDeltatEta"); |
36c9ca5c | 466 | histoDeltazCosTheta = (TH2F *)list->FindObject("hHistoDeltazCosTheta"); |
467 | histoAcceptedTracksEtaPt = (TH2F *)list->FindObject("hHistoAcceptedTracksEtaPt"); | |
468 | histoMatchedTracksEtaPt = (TH2F *)list->FindObject("hHistoMatchedTracksEtaPt"); | |
469 | } | |
470 | else { | |
471 | AliInfo(Form("getting histograms directly from file %s", filename)); | |
472 | histoVertexTimestamp = (TH2F *)file->Get("hHistoVertexTimestamp"); | |
473 | histoDeltatTimestamp = (TH2F *)file->Get("hHistoDeltatTimestamp"); | |
474 | histoDeltazEta = (TH2F *)file->Get("hHistoDeltazEta"); | |
6ed6117d | 475 | histoDeltatEta = (TH2F *)file->Get("hHistoDeltatEta"); |
36c9ca5c | 476 | histoDeltazCosTheta = (TH2F *)file->Get("hHistoDeltazCosTheta"); |
477 | histoAcceptedTracksEtaPt = (TH2F *)file->Get("hHistoAcceptedTracksEtaPt"); | |
478 | histoMatchedTracksEtaPt = (TH2F *)file->Get("hHistoMatchedTracksEtaPt"); | |
3c8efc07 | 479 | } |
36c9ca5c | 480 | /* check histos */ |
3c8efc07 | 481 | if (!histoVertexTimestamp) { |
482 | AliError(Form("cannot get \"hHistoVertexTimestamp\" object from file %s", filename)); | |
07901ecf | 483 | fStatus = kInputError; |
3c8efc07 | 484 | return kFALSE; |
485 | } | |
3c8efc07 | 486 | if (!histoDeltatTimestamp) { |
487 | AliError(Form("cannot get \"hHistoDeltatTimestamp\" object from file %s", filename)); | |
07901ecf | 488 | fStatus = kInputError; |
3c8efc07 | 489 | return kFALSE; |
490 | } | |
3c8efc07 | 491 | if (!histoDeltazEta) { |
492 | AliError(Form("cannot get \"hHistoDeltazEta\" object from file %s", filename)); | |
07901ecf | 493 | fStatus = kInputError; |
3c8efc07 | 494 | return kFALSE; |
6ed6117d | 495 | } |
496 | if (!histoDeltatEta) { | |
497 | AliError(Form("cannot get \"hHistoDeltatEta\" object from file %s", filename)); | |
498 | fStatus = kInputError; | |
499 | return kFALSE; | |
3c8efc07 | 500 | } |
3c8efc07 | 501 | if (!histoDeltazCosTheta) { |
502 | AliError(Form("cannot get \"hHistoDeltazCosTheta\" object from file %s", filename)); | |
07901ecf | 503 | fStatus = kInputError; |
3c8efc07 | 504 | return kFALSE; |
505 | } | |
3c8efc07 | 506 | if (!histoAcceptedTracksEtaPt) { |
507 | AliError(Form("cannot get \"hHistoAccptedTracksEtaPt\" object from file %s", filename)); | |
07901ecf | 508 | fStatus = kInputError; |
3c8efc07 | 509 | return kFALSE; |
510 | } | |
3c8efc07 | 511 | if (!histoMatchedTracksEtaPt) { |
512 | AliError(Form("cannot get \"hHistoMatchedTracksEtaPt\" object from file %s", filename)); | |
07901ecf | 513 | fStatus = kInputError; |
3c8efc07 | 514 | return kFALSE; |
515 | } | |
07901ecf | 516 | |
3c8efc07 | 517 | /* check matching performance */ |
518 | if (!CheckMatchingPerformance(histoDeltazEta, histoAcceptedTracksEtaPt, histoMatchedTracksEtaPt)) { | |
519 | AliError("error while checking matching efficiency"); | |
520 | return kFALSE; | |
521 | } | |
522 | /* calibrate and store */ | |
a9f9c69b | 523 | if (!CalibrateAndStore(histoVertexTimestamp, histoDeltatTimestamp, db)) { |
3c8efc07 | 524 | AliError("error while calibrating and storing"); |
525 | return kFALSE; | |
526 | } | |
527 | ||
528 | /* success */ | |
529 | return kTRUE; | |
530 | } | |
531 | ||
532 | //_______________________________________________________ | |
533 | ||
534 | Bool_t | |
535 | AliTOFAnalysisTaskCalibPass0::CheckMatchingPerformance(const TH2F *histoDeltazCosTheta, const TH2F *histoAcceptedTracksEtaPt, const TH2F *histoMatchedTracksEtaPt) const | |
536 | { | |
537 | /* | |
538 | * check matching performance | |
539 | */ | |
540 | ||
541 | /* check pointers */ | |
542 | if (!histoDeltazCosTheta || !histoAcceptedTracksEtaPt || !histoMatchedTracksEtaPt) | |
543 | return kFALSE; | |
544 | /* dummy for the time being */ | |
545 | return kTRUE; | |
546 | } | |
547 | ||
548 | //_______________________________________________________ | |
549 | ||
550 | Bool_t | |
a9f9c69b | 551 | AliTOFAnalysisTaskCalibPass0::CalibrateAndStore(TH2F *histoVertexTimestamp, TH2F *histoDeltatTimestamp, AliCDBStorage *db) |
3c8efc07 | 552 | { |
553 | /* | |
554 | * calibrate and store | |
555 | */ | |
556 | ||
557 | /* check pointers */ | |
558 | if (!histoVertexTimestamp || !histoDeltatTimestamp) | |
559 | return kFALSE; | |
560 | ||
561 | /*** GET RUN-NUMBER AND START-TIMESTAMP ***/ | |
562 | ||
563 | TString str; | |
564 | TObjArray *strarr = NULL; | |
565 | TObjString *ostr = NULL; | |
566 | str = histoVertexTimestamp->GetTitle(); | |
567 | strarr = str.Tokenize(","); | |
568 | if (!strarr) { | |
569 | AliError("problems whith tokenize histogram title"); | |
07901ecf | 570 | fStatus = kDataError; |
3c8efc07 | 571 | return kFALSE; |
572 | } | |
573 | ||
574 | /* run number */ | |
575 | ostr = (TObjString *)strarr->At(0); | |
576 | if (!ostr) { | |
577 | AliError("problems while getting run number from histogram title"); | |
07901ecf | 578 | fStatus = kDataError; |
09d5920f | 579 | delete strarr; |
3c8efc07 | 580 | return kFALSE; |
581 | } | |
582 | str = ostr->GetString(); | |
583 | if (!str.BeginsWith("run:")) { | |
584 | AliError("problems while getting run number from histogram title"); | |
07901ecf | 585 | fStatus = kDataError; |
09d5920f | 586 | delete strarr; |
3c8efc07 | 587 | return kFALSE; |
588 | } | |
589 | str.Remove(0, 5); | |
590 | Int_t runNb = atoi(str.Data()); | |
591 | if (runNb <= 0) { | |
592 | AliError(Form("bad run number: %d", runNb)); | |
07901ecf | 593 | fStatus = kDataError; |
09d5920f | 594 | delete strarr; |
3c8efc07 | 595 | return kFALSE; |
596 | } | |
597 | AliInfo(Form("got run number: %d", runNb)); | |
598 | ||
599 | /* start timestamp */ | |
600 | ostr = (TObjString *)strarr->At(1); | |
601 | if (!ostr) { | |
602 | AliError("problems while getting start timestamp from histogram title"); | |
07901ecf | 603 | fStatus = kDataError; |
09d5920f | 604 | delete strarr; |
3c8efc07 | 605 | return kFALSE; |
606 | } | |
607 | str = ostr->GetString(); | |
608 | str.Remove(0, 1); /* remove empty space at the beginning */ | |
609 | if (!str.BeginsWith("startTimestamp:")) { | |
610 | AliError("problems while getting start timestamp from histogram title"); | |
07901ecf | 611 | fStatus = kDataError; |
09d5920f | 612 | delete strarr; |
3c8efc07 | 613 | return kFALSE; |
614 | } | |
615 | str.Remove(0, 16); | |
616 | UInt_t startTimestamp = atoi(str.Data()); | |
617 | if (startTimestamp <= 0) { | |
618 | AliError(Form("bad start timestamp: %d", startTimestamp)); | |
07901ecf | 619 | fStatus = kDataError; |
09d5920f | 620 | delete strarr; |
3c8efc07 | 621 | return kFALSE; |
622 | } | |
623 | TTimeStamp ts = startTimestamp; | |
624 | AliInfo(Form("got start timestamp: %d (%s)", startTimestamp, ts.AsString())); | |
625 | ||
3fd7a5cd | 626 | /* BPTX */ |
627 | ostr = (TObjString *)strarr->At(2); | |
628 | if (!ostr) { | |
629 | AliError("problems while getting BPTX from histogram title"); | |
630 | fStatus = kDataError; | |
09d5920f | 631 | delete strarr; |
3fd7a5cd | 632 | return kFALSE; |
633 | } | |
634 | str = ostr->GetString(); | |
635 | str.Remove(0, 1); /* remove empty space at the beginning */ | |
636 | if (!str.BeginsWith("BPTX:")) { | |
637 | AliError("problems while getting BPTX from histogram title"); | |
638 | fStatus = kDataError; | |
09d5920f | 639 | delete strarr; |
3fd7a5cd | 640 | return kFALSE; |
641 | } | |
642 | str.Remove(0, 6); | |
643 | Bool_t useBPTX = atoi(str.Data()); | |
644 | AliInfo(Form("got BPTX: %d", useBPTX)); | |
645 | ||
09d5920f | 646 | delete strarr; |
647 | ||
3c8efc07 | 648 | /*** CALIBRATION STAGE ***/ |
649 | ||
650 | /* get fit function */ | |
651 | TF1 *fitFunc = (TF1 *)gROOT->GetFunction("gaus"); | |
652 | ||
653 | /* projection-x */ | |
654 | TH1D *histoVertexTimestamppx = histoVertexTimestamp->ProjectionX("histoVertexTimestamppx"); | |
655 | TH1D *histoDeltatTimestamppx = histoDeltatTimestamp->ProjectionX("histoDeltatTimestamppx"); | |
656 | ||
07901ecf | 657 | /* check statistics */ |
658 | if (histoVertexTimestamppx->Integral() < fgMinVertexIntegral || | |
659 | histoDeltatTimestamppx->Integral() < fgMinDeltatIntegral) { | |
660 | fStatus = kLowStatistics; | |
661 | return kFALSE; | |
662 | } | |
663 | ||
3c8efc07 | 664 | /* define mix and max time bin */ |
665 | Int_t minBin = histoVertexTimestamppx->FindFirstBinAbove(0); | |
666 | Int_t maxBin = histoVertexTimestamppx->FindLastBinAbove(0); | |
667 | Float_t minTime = histoVertexTimestamppx->GetBinLowEdge(minBin); | |
668 | Float_t maxTime = histoVertexTimestamppx->GetBinLowEdge(maxBin + 1); | |
669 | AliInfo(Form("min/max time defined: %d < t < %d s [%d, %d]", (Int_t)minTime, (Int_t)maxTime, minBin, maxBin)); | |
670 | ||
671 | /* loop over time bins */ | |
672 | Int_t nPoints = 0; | |
673 | Float_t time[fgkMaxNumberOfPoints], timeerr[fgkMaxNumberOfPoints]; | |
674 | Float_t vertexMean[fgkMaxNumberOfPoints], vertexMeanerr[fgkMaxNumberOfPoints]; | |
675 | Float_t vertexSigma[fgkMaxNumberOfPoints], vertexSigmaerr[fgkMaxNumberOfPoints]; | |
676 | Float_t timeZeroMean[fgkMaxNumberOfPoints], timeZeroMeanerr[fgkMaxNumberOfPoints]; | |
677 | Float_t timeZeroSigma[fgkMaxNumberOfPoints], timeZeroSigmaerr[fgkMaxNumberOfPoints]; | |
678 | Float_t averageTimeZero = 0.; | |
679 | Float_t averageTimeSigma = 0.; | |
680 | Float_t averageVertexSpread = 0.; | |
681 | for (Int_t ibin = minBin; ibin <= maxBin; ibin++) { | |
682 | ||
683 | /* define time window */ | |
684 | Int_t startBin = ibin; | |
685 | Int_t endBin = ibin; | |
d501ffec | 686 | while(histoVertexTimestamppx->Integral(startBin, endBin) < fgMinVertexIntegralSample || |
687 | histoDeltatTimestamppx->Integral(startBin, endBin) < fgMinDeltatIntegralSample) { | |
3c8efc07 | 688 | if (endBin < maxBin) endBin++; |
689 | else if (startBin > minBin) startBin--; | |
690 | else break; | |
691 | } | |
d501ffec | 692 | if (histoVertexTimestamppx->Integral(startBin, endBin) < fgMinVertexIntegral || |
693 | histoDeltatTimestamppx->Integral(startBin, endBin) < fgMinDeltatIntegral) continue; | |
3c8efc07 | 694 | Float_t startTime = histoVertexTimestamppx->GetBinLowEdge(startBin); |
695 | Float_t endTime = histoVertexTimestamppx->GetBinLowEdge(endBin + 1); | |
696 | Float_t vertexIntegral = histoVertexTimestamppx->Integral(startBin, endBin); | |
697 | Float_t deltatIntegral = histoDeltatTimestamppx->Integral(startBin, endBin); | |
698 | 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)); | |
699 | ||
700 | /* projection-y */ | |
701 | TH1D *histoVertexTimestamppy = histoVertexTimestamp->ProjectionY("histoVertexTimestamppy", startBin, endBin); | |
702 | TH1D *histoDeltatTimestamppy = histoDeltatTimestamp->ProjectionY("histoDeltatTimestamppy", startBin, endBin); | |
703 | ||
704 | /* average time */ | |
705 | histoVertexTimestamppx->GetXaxis()->SetRange(startBin, endBin); | |
706 | time[nPoints] = histoVertexTimestamppx->GetMean(); | |
707 | timeerr[nPoints] = histoVertexTimestamppx->GetMeanError(); | |
708 | ||
709 | /* fit vertex */ | |
710 | if (FitPeak(fitFunc, histoVertexTimestamppy, 10., 3., 3.) != 0) { | |
711 | AliError("troubles fitting vertex, skip"); | |
712 | delete histoVertexTimestamppy; | |
713 | delete histoDeltatTimestamppy; | |
714 | continue; | |
715 | } | |
716 | vertexMean[nPoints] = fitFunc->GetParameter(1); | |
717 | vertexMeanerr[nPoints] = fitFunc->GetParError(1); | |
718 | vertexSigma[nPoints] = fitFunc->GetParameter(2); | |
719 | vertexSigmaerr[nPoints] = fitFunc->GetParError(2); | |
720 | averageVertexSpread += fitFunc->GetParameter(2); | |
721 | ||
722 | /* fit time-zero */ | |
723 | if (FitPeak(fitFunc, histoDeltatTimestamppy, 500., 2., 1.) != 0) { | |
724 | AliError("troubles fitting time-zero TRACKS, skip"); | |
725 | delete histoVertexTimestamppy; | |
726 | delete histoDeltatTimestamppy; | |
727 | continue; | |
728 | } | |
729 | timeZeroMean[nPoints] = fitFunc->GetParameter(1); | |
730 | timeZeroMeanerr[nPoints] = fitFunc->GetParError(1); | |
731 | timeZeroSigma[nPoints] = fitFunc->GetParameter(2); | |
732 | timeZeroSigmaerr[nPoints] = fitFunc->GetParError(2); | |
733 | averageTimeZero += fitFunc->GetParameter(1); | |
734 | averageTimeSigma += fitFunc->GetParameter(2); | |
735 | ||
736 | /* delete projection-y */ | |
737 | delete histoVertexTimestamppy; | |
738 | delete histoDeltatTimestamppy; | |
739 | ||
740 | /* increment n points */ | |
741 | nPoints++; | |
742 | ||
743 | /* set current bin */ | |
744 | ibin = endBin; | |
745 | ||
746 | } /* end of loop over time bins */ | |
747 | ||
748 | /* delete projection-x */ | |
749 | delete histoVertexTimestamppx; | |
750 | delete histoDeltatTimestamppx; | |
751 | ||
752 | /* check points */ | |
753 | if (nPoints <= 0) { | |
754 | AliError("no measurement available, quit"); | |
07901ecf | 755 | fStatus = kNoMeasurement; |
3c8efc07 | 756 | return kFALSE; |
757 | } | |
758 | AliInfo(Form("average time-zero = %f", averageTimeZero / nPoints)); | |
759 | AliInfo(Form("average time-sigma = %f", averageTimeSigma / nPoints)); | |
760 | AliInfo(Form("average v-spread = %f", averageVertexSpread / nPoints)); | |
761 | ||
762 | /*** CREATE RUN PARAMS OBJECT ***/ | |
763 | ||
764 | #if 0 | |
765 | /* get start time from GRP */ | |
766 | TGrid::Connect("alien://", 0, 0, "t"); | |
767 | AliCDBManager *cdb = AliCDBManager::Instance(); | |
768 | cdb->SetDefaultStorage("raw://"); | |
769 | cdb->SetRun(runNb); | |
770 | AliGRPManager grp; | |
771 | if (!grp.ReadGRPEntry()) { | |
772 | AliError("error while reading GRP entry"); | |
773 | return kFALSE; | |
774 | } | |
775 | UInt_t startTimestamp = grp.GetGRPData()->GetTimeStart(); | |
776 | TTimeStamp ts; | |
777 | ts = startTimestamp; | |
778 | AliInfo(Form("got start time from GRP: %s", ts.AsString())); | |
779 | #endif | |
780 | ||
781 | /* create arrays */ | |
782 | UInt_t timestamp[fgkMaxNumberOfPoints]; | |
783 | Float_t t0[fgkMaxNumberOfPoints]; | |
784 | Float_t tofReso[fgkMaxNumberOfPoints]; | |
785 | Float_t t0Spread[fgkMaxNumberOfPoints]; | |
786 | for (Int_t ipoint = 0; ipoint < nPoints; ipoint++) { | |
7ca3d6d6 | 787 | timestamp[ipoint] = (UInt_t)time[ipoint] + startTimestamp; |
3c8efc07 | 788 | t0[ipoint] = timeZeroMean[ipoint]; |
789 | tofReso[ipoint] = timeZeroSigma[ipoint]; | |
790 | t0Spread[ipoint] = vertexSigma[ipoint] / 2.99792457999999984e-02; | |
791 | } | |
792 | UInt_t run[1] = {runNb}; | |
793 | UInt_t runFirstPoint[1] = {0}; | |
794 | UInt_t runLastPoint[1] = {nPoints - 1}; | |
795 | ||
796 | /* create run params object */ | |
797 | AliTOFRunParams obj(nPoints, 1); | |
798 | AliInfo(Form("create run params object for run %d with %d points", runNb, nPoints)); | |
799 | obj.SetTimestamp(timestamp); | |
800 | obj.SetT0(t0); | |
801 | obj.SetTOFResolution(tofReso); | |
802 | obj.SetT0Spread(t0Spread); | |
803 | obj.SetRunNb(run); | |
804 | obj.SetRunFirstPoint(runFirstPoint); | |
805 | obj.SetRunLastPoint(runLastPoint); | |
3fd7a5cd | 806 | obj.SetUseLHCClockPhase(useBPTX); |
3c8efc07 | 807 | |
808 | /*** CREATE OCDB ENTRY ***/ | |
809 | ||
a9f9c69b | 810 | if (!db) { |
811 | AliError("cannot store object because of NULL storage"); | |
07901ecf | 812 | fStatus = kStoreError; |
3c8efc07 | 813 | return kFALSE; |
814 | } | |
815 | ||
816 | /* install run params object in OCDB */ | |
3c8efc07 | 817 | AliCDBId id("TOF/Calib/RunParams", runNb, runNb); |
818 | AliCDBMetaData md; | |
819 | md.SetResponsible("Roberto Preghenella"); | |
820 | md.SetComment("offline TOF run parameters"); | |
821 | md.SetAliRootVersion(gSystem->Getenv("ARVERSION")); | |
822 | md.SetBeamPeriod(0); | |
a9f9c69b | 823 | if (!db->Put(&obj, id, &md)) { |
07901ecf | 824 | fStatus = kStoreError; |
a9f9c69b | 825 | AliError(Form("error while putting object in storage %s", db->GetURI().Data())); |
07901ecf | 826 | return kFALSE; |
3c8efc07 | 827 | } |
828 | ||
829 | /* success */ | |
830 | return kTRUE; | |
831 | } | |
832 | ||
833 | //_____________________________________________________________ | |
834 | ||
835 | Int_t | |
836 | AliTOFAnalysisTaskCalibPass0::FitPeak(TF1 *fitFunc, TH1D *h, Float_t startSigma, Float_t nSigmaMin, Float_t nSigmaMax) | |
837 | { | |
838 | /* | |
839 | * fit peak | |
840 | */ | |
841 | ||
842 | Double_t fitCent = h->GetBinCenter(h->GetMaximumBin()); | |
843 | Double_t fitMin = fitCent - nSigmaMin * startSigma; | |
844 | Double_t fitMax = fitCent + nSigmaMax * startSigma; | |
845 | if (fitMin < h->GetXaxis()->GetXmin()) fitMin = h->GetXaxis()->GetXmin(); | |
846 | if (fitMax > h->GetXaxis()->GetXmax()) fitMax = h->GetXaxis()->GetXmax(); | |
847 | fitFunc->SetParameter(1, fitCent); | |
848 | fitFunc->SetParameter(2, startSigma); | |
849 | Int_t fitres = h->Fit(fitFunc, "WWq0", "", fitMin, fitMax); | |
850 | if (fitres != 0) return fitres; | |
851 | /* refit with better range */ | |
852 | for (Int_t i = 0; i < 3; i++) { | |
853 | fitCent = fitFunc->GetParameter(1); | |
854 | fitMin = fitCent - nSigmaMin * fitFunc->GetParameter(2); | |
855 | fitMax = fitCent + nSigmaMax * fitFunc->GetParameter(2); | |
856 | if (fitMin < h->GetXaxis()->GetXmin()) fitMin = h->GetXaxis()->GetXmin(); | |
857 | if (fitMax > h->GetXaxis()->GetXmax()) fitMax = h->GetXaxis()->GetXmax(); | |
858 | fitres = h->Fit(fitFunc, "q0", "", fitMin, fitMax); | |
859 | if (fitres != 0) return fitres; | |
860 | } | |
861 | return fitres; | |
862 | } |