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8bc7e885 | 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 | ||
8bc7e885 | 17 | /* $Id$ */ |
18 | ||
8bc7e885 | 19 | |
20 | //Root includes | |
8bc7e885 | 21 | #include <TH1F.h> |
8bc7e885 | 22 | #include <TH2F.h> |
8bc7e885 | 23 | #include <TString.h> |
8bc7e885 | 24 | #include <TMath.h> |
25 | #include <TF1.h> | |
26 | #include <TRandom.h> | |
8bc7e885 | 27 | #include <TDirectory.h> |
8bc7e885 | 28 | #include <TFile.h> |
8bc7e885 | 29 | //AliRoot includes |
30 | #include "AliRawReader.h" | |
31 | #include "AliRawReaderRoot.h" | |
bc331d5b | 32 | #include "AliRawReaderDate.h" |
8bc7e885 | 33 | #include "AliTPCRawStream.h" |
34 | #include "AliTPCCalROC.h" | |
8bc7e885 | 35 | #include "AliTPCROC.h" |
8bc7e885 | 36 | #include "AliMathBase.h" |
8bc7e885 | 37 | #include "TTreeStream.h" |
4958b652 | 38 | #include "AliTPCRawStreamFast.h" |
8bc7e885 | 39 | |
bc331d5b | 40 | //date |
41 | #include "event.h" | |
42 | ||
43 | //header file | |
44 | #include "AliTPCCalibPedestal.h" | |
8bc7e885 | 45 | |
46 | ||
aa983e4f | 47 | /////////////////////////////////////////////////////////////////////////////////////// |
48 | // Implementation of the TPC pedestal and noise calibration | |
49 | // | |
50 | // Origin: Jens Wiechula, Marian Ivanov J.Wiechula@gsi.de, Marian.Ivanov@cern.ch | |
51 | // | |
52 | // | |
53 | // ************************************************************************************* | |
54 | // * Class Description * | |
55 | // ************************************************************************************* | |
56 | // | |
57 | // Working principle: | |
58 | // ------------------ | |
59 | // Raw pedestal data is processed by calling one of the ProcessEvent(...) functions | |
60 | // (see below). These in the end call the Update(...) function, where the data is filled | |
61 | // into histograms. | |
62 | // | |
63 | // For each ROC one TH2F histo (ROC channel vs. ADC channel) is created when | |
64 | // it is filled for the first time (GetHistoPedestal(ROC,kTRUE)). All histos are stored in the | |
65 | // TObjArray fHistoPedestalArray. | |
66 | // | |
67 | // For a fast filling of the histogram the corresponding bin number of the channel and ADC channel | |
68 | // is computed by hand and the histogram array is accessed directly via its pointer. | |
69 | // ATTENTION: Doing so the the entry counter of the histogram is not increased | |
70 | // this means that e.g. the colz draw option gives an empty plot unless | |
71 | // calling 'histo->SetEntries(1)' before drawing. | |
72 | // | |
73 | // After accumulating the desired statistics the Analyse() function has to be called. | |
74 | // Whithin this function the pedestal and noise values are calculated for each pad, using | |
75 | // the fast gaus fit function AliMathBase::FitGaus(...), and the calibration | |
76 | // storage classes (AliTPCCalROC) are filled for each ROC. | |
77 | // The calibration information is stored in the TObjArrays fCalRocArrayPedestal and fCalRocArrayRMS; | |
78 | // | |
79 | // | |
80 | // | |
81 | // User interface for filling data: | |
82 | // -------------------------------- | |
83 | // | |
84 | // To Fill information one of the following functions can be used: | |
85 | // | |
86 | // Bool_t ProcessEvent(eventHeaderStruct *event); | |
87 | // - process Date event | |
88 | // - use AliTPCRawReaderDate and call ProcessEvent(AliRawReader *rawReader) | |
89 | // | |
90 | // Bool_t ProcessEvent(AliRawReader *rawReader); | |
91 | // - process AliRawReader event | |
92 | // - use AliTPCRawStream to loop over data and call ProcessEvent(AliTPCRawStream *rawStream) | |
93 | // | |
94 | // Bool_t ProcessEvent(AliTPCRawStream *rawStream); | |
95 | // - process event from AliTPCRawStream | |
96 | // - call Update function for signal filling | |
97 | // | |
98 | // Int_t Update(const Int_t isector, const Int_t iRow, const Int_t | |
99 | // iPad, const Int_t iTimeBin, const Float_t signal); | |
100 | // - directly fill signal information (sector, row, pad, time bin, pad) | |
101 | // to the reference histograms | |
102 | // | |
103 | // It is also possible to merge two independently taken calibrations using the function | |
104 | // | |
105 | // void Merge(AliTPCCalibPedestal *ped) | |
106 | // - copy histograms in 'ped' if the do not exist in this instance | |
107 | // - Add histograms in 'ped' to the histograms in this instance if the allready exist | |
108 | // - After merging call Analyse again! | |
109 | // | |
110 | // | |
111 | // | |
112 | // -- example: filling data using root raw data: | |
113 | // void fillPedestal(Char_t *filename) | |
114 | // { | |
115 | // rawReader = new AliRawReaderRoot(fileName); | |
116 | // if ( !rawReader ) return; | |
117 | // AliTPCCalibPedestal *calib = new AliTPCCalibPedestal; | |
118 | // while (rawReader->NextEvent()){ | |
119 | // calib->ProcessEvent(rawReader); | |
120 | // } | |
121 | // calib->Analyse(); | |
122 | // calib->DumpToFile("PedestalData.root"); | |
123 | // delete rawReader; | |
124 | // delete calib; | |
125 | // } | |
126 | // | |
127 | // | |
128 | // What kind of information is stored and how to retrieve them: | |
129 | // ------------------------------------------------------------ | |
130 | // | |
131 | // - Accessing the 'Reference Histograms' (pedestal distribution histograms): | |
132 | // | |
133 | // TH2F *GetHistoPedestal(Int_t sector); | |
134 | // | |
135 | // - Accessing the calibration storage objects: | |
136 | // | |
1542c62d | 137 | // AliTPCCalROC *GetCalRocPedestal(Int_t sector); - for the pedestal values, mean from gaus fit |
138 | // AliTPCCalROC *GetCalRocSigma(Int_t sector); - for the Noise values, sigma from guas fit | |
139 | // AliTPCCalROC *GetCalRocMean(Int_t sector); - for the pedestal values, truncated mean | |
140 | // AliTPCCalROC *GetCalRocRMS(Int_t sector); - for the Noise values, rms from truncated mean | |
aa983e4f | 141 | // |
142 | // example for visualisation: | |
143 | // if the file "PedestalData.root" was created using the above example one could do the following: | |
144 | // | |
145 | // TFile filePedestal("PedestalData.root") | |
146 | // AliTPCCalibPedestal *ped = (AliTPCCalibPedestal*)filePedestal->Get("AliTPCCalibPedestal"); | |
147 | // ped->GetCalRocPedestal(0)->Draw("colz"); | |
148 | // ped->GetCalRocRMS(0)->Draw("colz"); | |
149 | // | |
150 | // or use the AliTPCCalPad functionality: | |
151 | // AliTPCCalPad padPedestal(ped->GetCalPadPedestal()); | |
152 | // AliTPCCalPad padNoise(ped->GetCalPadRMS()); | |
153 | // padPedestal->MakeHisto2D()->Draw("colz"); //Draw A-Side Pedestal Information | |
154 | // padNoise->MakeHisto2D()->Draw("colz"); //Draw A-Side Noise Information | |
155 | // | |
156 | /* | |
157 | example: fill pedestal with gausschen noise | |
158 | AliTPCCalibPedestal ped; | |
159 | ped.TestEvent(); | |
160 | ped.Analyse(); | |
161 | //Draw output; | |
162 | TCanvas* c1 = new TCanvas; | |
163 | c1->Divide(1,2); | |
164 | c1->cd(1); | |
165 | ped.GetHistoPedestal(0)->SetEntries(1); //needed in order for colz to work, reason: fast filling does not increase the entries counter | |
166 | ped.GetHistoPedestal(0)->Draw("colz"); | |
167 | c1->cd(2); | |
168 | ped.GetHistoPedestal(36)->SetEntries(1); //needed in order for colz to work, reason: fast filling does not increase the entries counter | |
169 | ped.GetHistoPedestal(36)->Draw("colz"); | |
170 | TCanvas* c2 = new TCanvas; | |
171 | c2->Divide(2,2); | |
172 | c2->cd(1); | |
173 | ped.GetCalRocPedestal(0)->Draw("colz"); | |
174 | c2->cd(2); | |
175 | ped.GetCalRocRMS(0)->Draw("colz"); | |
176 | c2->cd(3); | |
177 | ped.GetCalRocPedestal(36)->Draw("colz"); | |
178 | c2->cd(4); | |
179 | ped.GetCalRocRMS(36)->Draw("colz"); | |
aa983e4f | 180 | */ |
bdf99a93 | 181 | // |
182 | // Time dependent pedestals: | |
183 | // | |
184 | // If wished there is the possibility to calculate for each channel and time bin | |
185 | // the mean pedestal [pedestals(t)]. This is done by | |
186 | // | |
187 | // 1) setting SetTimeAnalysis(kTRUE), | |
188 | // 2) processing the data by looping over the events using ProcessEvent(..) | |
189 | // 3) calling the Analyse() and AnalyseTime(nevents) functions (providing nevents) | |
190 | // 4) getting the pedestals(t) using TArrayF **timePed = calibPedestal.GetTimePedestals(); | |
191 | // 5) looking at values using timePed[row][pad].At(timebin) | |
192 | // | |
193 | // This functionality is intended to be used on an LDC bu the detector algorithm | |
194 | // (TPCPEDESTALda) to generate a data set used for configuration of the pattern | |
195 | // memory for baseline subtraction in the ALTROs. Later the information should also | |
196 | // be stored as reference data. | |
197 | // | |
8bc7e885 | 198 | |
199 | ||
aa983e4f | 200 | ClassImp(AliTPCCalibPedestal) |
8bc7e885 | 201 | |
1542c62d | 202 | AliTPCCalibPedestal::AliTPCCalibPedestal() : |
8bc7e885 | 203 | TObject(), |
204 | fFirstTimeBin(60), | |
205 | fLastTimeBin(1000), | |
206 | fAdcMin(1), | |
207 | fAdcMax(100), | |
1542c62d | 208 | fAnaMeanDown(0.), |
209 | fAnaMeanUp(1.), | |
aa983e4f | 210 | fOldRCUformat(kTRUE), |
bdf99a93 | 211 | fTimeAnalysis(kFALSE), |
8bc7e885 | 212 | fROC(AliTPCROC::Instance()), |
4958b652 | 213 | fMapping(NULL), |
8bc7e885 | 214 | fCalRocArrayPedestal(72), |
1542c62d | 215 | fCalRocArraySigma(72), |
bdf99a93 | 216 | fHistoPedestalArray(72), |
1542c62d | 217 | fTimeSignal(NULL), |
218 | fCalRocArrayMean(72), | |
219 | fCalRocArrayRMS(72) | |
8bc7e885 | 220 | { |
bdf99a93 | 221 | // |
222 | // default constructor | |
223 | // | |
8bc7e885 | 224 | } |
bdf99a93 | 225 | |
226 | ||
bc331d5b | 227 | //_____________________________________________________________________ |
1542c62d | 228 | AliTPCCalibPedestal::AliTPCCalibPedestal(const AliTPCCalibPedestal &ped) : |
bc331d5b | 229 | TObject(ped), |
230 | fFirstTimeBin(ped.GetFirstTimeBin()), | |
231 | fLastTimeBin(ped.GetLastTimeBin()), | |
232 | fAdcMin(ped.GetAdcMin()), | |
233 | fAdcMax(ped.GetAdcMax()), | |
1542c62d | 234 | fAnaMeanDown(ped.fAnaMeanDown), |
235 | fAnaMeanUp(ped.fAnaMeanUp), | |
bdf99a93 | 236 | fOldRCUformat(ped.fOldRCUformat), |
237 | fTimeAnalysis(ped.fTimeAnalysis), | |
bc331d5b | 238 | fROC(AliTPCROC::Instance()), |
4958b652 | 239 | fMapping(NULL), |
bc331d5b | 240 | fCalRocArrayPedestal(72), |
1542c62d | 241 | fCalRocArraySigma(72), |
bdf99a93 | 242 | fHistoPedestalArray(72), |
1542c62d | 243 | fTimeSignal(ped.fTimeSignal), |
244 | fCalRocArrayMean(72), | |
245 | fCalRocArrayRMS(72) | |
bc331d5b | 246 | { |
bdf99a93 | 247 | // |
248 | // copy constructor | |
249 | // | |
250 | for (Int_t iSec = 0; iSec < 72; ++iSec){ | |
251 | const AliTPCCalROC *calPed = (AliTPCCalROC*)ped.fCalRocArrayPedestal.UncheckedAt(iSec); | |
252 | const AliTPCCalROC *calRMS = (AliTPCCalROC*)ped.fCalRocArrayRMS.UncheckedAt(iSec); | |
253 | const TH2F *hPed = (TH2F*)ped.fHistoPedestalArray.UncheckedAt(iSec); | |
254 | ||
255 | if ( calPed != 0x0 ) fCalRocArrayPedestal.AddAt(new AliTPCCalROC(*calPed), iSec); | |
256 | if ( calRMS != 0x0 ) fCalRocArrayRMS.AddAt(new AliTPCCalROC(*calRMS), iSec); | |
257 | ||
258 | if ( hPed != 0x0 ){ | |
259 | TH2F *hNew = new TH2F(*hPed); | |
260 | hNew->SetDirectory(0); | |
261 | fHistoPedestalArray.AddAt(hNew,iSec); | |
bc331d5b | 262 | } |
bdf99a93 | 263 | } |
bc331d5b | 264 | } |
bdf99a93 | 265 | |
266 | ||
bc331d5b | 267 | //_____________________________________________________________________ |
268 | AliTPCCalibPedestal& AliTPCCalibPedestal::operator = (const AliTPCCalibPedestal &source) | |
269 | { | |
270 | // | |
271 | // assignment operator | |
272 | // | |
273 | if (&source == this) return *this; | |
274 | new (this) AliTPCCalibPedestal(source); | |
8bc7e885 | 275 | |
bc331d5b | 276 | return *this; |
277 | } | |
bdf99a93 | 278 | |
279 | ||
8bc7e885 | 280 | //_____________________________________________________________________ |
1542c62d | 281 | AliTPCCalibPedestal::~AliTPCCalibPedestal() |
8bc7e885 | 282 | { |
283 | // | |
284 | // destructor | |
285 | // | |
8bc7e885 | 286 | |
bdf99a93 | 287 | fCalRocArrayPedestal.Delete(); |
288 | fCalRocArrayRMS.Delete(); | |
289 | fHistoPedestalArray.Delete(); | |
290 | ||
291 | if ( fTimeSignal ) { | |
292 | for (Int_t i = 0; i < 159; i++) { | |
293 | delete [] fTimeSignal[i]; | |
294 | fTimeSignal[i] = 0; | |
295 | } | |
296 | delete [] fTimeSignal; | |
297 | fTimeSignal = 0; | |
298 | } | |
4958b652 | 299 | |
300 | // do not delete fMapping, because we do not own it. | |
301 | ||
bdf99a93 | 302 | } |
303 | ||
304 | ||
305 | //_____________________________________________________________________ | |
306 | void AliTPCCalibPedestal::SetTimeAnalysis(Bool_t time) | |
307 | { | |
308 | // | |
309 | // Use time dependent analysis: Pedestals are analysed as a function | |
310 | // of the drift time. There is one mean value generated for each time | |
311 | // bin and each channel. It can be used as reference data and for | |
312 | // configuration of the ALTRO pattern memory for baseline subtraction. | |
313 | // | |
314 | // ATTENTION: Use only on LDC in TPCPEDESTALda! On a LDC we get data | |
315 | // only from one sector. For the full TPC we would need a lot of | |
316 | // memory (36*159*140*1024*4bytes = 3.3GB)! | |
317 | // | |
318 | ||
319 | fTimeAnalysis = time; | |
320 | ||
321 | if ( !fTimeAnalysis ) return; | |
322 | ||
323 | // prepare array for one sector (159*140*1024*4bytes = 92MB): | |
324 | fTimeSignal = new TArrayF*[159]; | |
325 | for (Int_t i = 0; i < 159; i++) { // padrows | |
326 | fTimeSignal[i] = new TArrayF[140]; | |
327 | for (Int_t j = 0; j < 140; j++) { // pads per row | |
328 | fTimeSignal[i][j].Set(1024); | |
329 | for (Int_t k = 0; k < 1024; k++) { // time bins per pad | |
330 | fTimeSignal[i][j].AddAt(0., k); | |
331 | } | |
332 | } | |
333 | } | |
aa983e4f | 334 | } |
bdf99a93 | 335 | |
336 | ||
8bc7e885 | 337 | //_____________________________________________________________________ |
1542c62d | 338 | Int_t AliTPCCalibPedestal::Update(const Int_t icsector, |
bdf99a93 | 339 | const Int_t icRow, |
340 | const Int_t icPad, | |
341 | const Int_t icTimeBin, | |
342 | const Float_t csignal) | |
8bc7e885 | 343 | { |
bdf99a93 | 344 | // |
345 | // Signal filling method | |
346 | // | |
b401648b | 347 | if (icRow<0) return 0; |
348 | if (icPad<0) return 0; | |
349 | if (icTimeBin<0) return 0; | |
350 | ||
bdf99a93 | 351 | // Time dependent pedestals |
352 | if ( fTimeAnalysis ) { | |
353 | if ( icsector < 36 ) // IROC | |
354 | fTimeSignal[icRow][icPad].AddAt(fTimeSignal[icRow][icPad].At(icTimeBin)+csignal, icTimeBin); | |
355 | else | |
356 | fTimeSignal[icRow+63][icPad].AddAt(fTimeSignal[icRow+63][icPad].At(icTimeBin)+csignal, icTimeBin); | |
357 | } | |
358 | //return if we are out of the specified time bin or adc range | |
359 | if ( (icTimeBin>fLastTimeBin) || (icTimeBin<fFirstTimeBin) ) return 0; | |
360 | if ( ((Int_t)csignal>fAdcMax) || ((Int_t)csignal<fAdcMin) ) return 0; | |
8bc7e885 | 361 | |
bdf99a93 | 362 | Int_t iChannel = fROC->GetRowIndexes(icsector)[icRow]+icPad; // global pad position in sector |
8bc7e885 | 363 | |
4958b652 | 364 | // fast filling method |
bdf99a93 | 365 | // Attention: the entry counter of the histogram is not increased |
366 | // this means that e.g. the colz draw option gives an empty plot | |
367 | Int_t bin = (iChannel+1)*(fAdcMax-fAdcMin+2)+((Int_t)csignal-fAdcMin+1); | |
8bc7e885 | 368 | |
bdf99a93 | 369 | GetHistoPedestal(icsector,kTRUE)->GetArray()[bin]++; |
8bc7e885 | 370 | |
bdf99a93 | 371 | return 0; |
8bc7e885 | 372 | } |
4958b652 | 373 | |
374 | ||
08205ed7 | 375 | //_____________________________________________________________________ |
376 | Bool_t AliTPCCalibPedestal::ProcessEventFast(AliTPCRawStreamFast *rawStreamFast) | |
377 | { | |
378 | // | |
379 | // Event Processing loop - AliTPCRawStream | |
380 | // | |
381 | Bool_t withInput = kFALSE; | |
bdf99a93 | 382 | |
08205ed7 | 383 | while ( rawStreamFast->NextDDL() ){ |
384 | while ( rawStreamFast->NextChannel() ){ | |
385 | Int_t isector = rawStreamFast->GetSector(); // current sector | |
386 | Int_t iRow = rawStreamFast->GetRow(); // current row | |
387 | Int_t iPad = rawStreamFast->GetPad(); // current pad | |
08205ed7 | 388 | |
389 | while ( rawStreamFast->NextBunch() ){ | |
1542c62d | 390 | Int_t startTbin = (Int_t)rawStreamFast->GetStartTimeBin(); |
391 | Int_t endTbin = (Int_t)rawStreamFast->GetEndTimeBin(); | |
392 | for (Int_t iTimeBin = startTbin; iTimeBin < endTbin; iTimeBin++){ | |
08205ed7 | 393 | Float_t signal=(Float_t)rawStreamFast->GetSignals()[iTimeBin-startTbin]; |
394 | Update(isector,iRow,iPad,iTimeBin+1,signal); | |
395 | withInput = kTRUE; | |
396 | } | |
397 | } | |
398 | } | |
399 | } | |
bdf99a93 | 400 | |
08205ed7 | 401 | return withInput; |
402 | } | |
403 | //_____________________________________________________________________ | |
404 | Bool_t AliTPCCalibPedestal::ProcessEventFast(AliRawReader *rawReader) | |
405 | { | |
406 | // | |
407 | // Event processing loop - AliRawReader | |
408 | // | |
4958b652 | 409 | AliTPCRawStreamFast *rawStreamFast = new AliTPCRawStreamFast(rawReader, (AliAltroMapping**)fMapping); |
08205ed7 | 410 | Bool_t res=ProcessEventFast(rawStreamFast); |
411 | delete rawStreamFast; | |
412 | return res; | |
413 | } | |
4958b652 | 414 | |
8bc7e885 | 415 | //_____________________________________________________________________ |
bc331d5b | 416 | Bool_t AliTPCCalibPedestal::ProcessEvent(AliTPCRawStream *rawStream) |
8bc7e885 | 417 | { |
418 | // | |
bc331d5b | 419 | // Event Processing loop - AliTPCRawStream |
8bc7e885 | 420 | // |
421 | ||
aa983e4f | 422 | rawStream->SetOldRCUFormat(fOldRCUformat); |
8bc7e885 | 423 | |
424 | Bool_t withInput = kFALSE; | |
425 | ||
bc331d5b | 426 | while (rawStream->Next()) { |
4958b652 | 427 | |
bdf99a93 | 428 | Int_t iSector = rawStream->GetSector(); // current ROC |
429 | Int_t iRow = rawStream->GetRow(); // current row | |
430 | Int_t iPad = rawStream->GetPad(); // current pad | |
431 | Int_t iTimeBin = rawStream->GetTime(); // current time bin | |
432 | Float_t signal = rawStream->GetSignal(); // current ADC signal | |
433 | ||
434 | Update(iSector,iRow,iPad,iTimeBin,signal); | |
435 | withInput = kTRUE; | |
8bc7e885 | 436 | } |
4958b652 | 437 | |
8bc7e885 | 438 | return withInput; |
439 | } | |
4958b652 | 440 | |
441 | ||
8bc7e885 | 442 | //_____________________________________________________________________ |
bc331d5b | 443 | Bool_t AliTPCCalibPedestal::ProcessEvent(AliRawReader *rawReader) |
444 | { | |
445 | // | |
446 | // Event processing loop - AliRawReader | |
447 | // | |
448 | ||
4958b652 | 449 | // if fMapping is NULL the rawstream will crate its own mapping |
450 | AliTPCRawStream rawStream(rawReader, (AliAltroMapping**)fMapping); | |
bc331d5b | 451 | rawReader->Select("TPC"); |
bc331d5b | 452 | return ProcessEvent(&rawStream); |
453 | } | |
bdf99a93 | 454 | |
455 | ||
bc331d5b | 456 | //_____________________________________________________________________ |
457 | Bool_t AliTPCCalibPedestal::ProcessEvent(eventHeaderStruct *event) | |
458 | { | |
459 | // | |
460 | // process date event | |
461 | // | |
bdf99a93 | 462 | |
463 | AliRawReader *rawReader = new AliRawReaderDate((void*)event); | |
464 | Bool_t result=ProcessEvent(rawReader); | |
465 | delete rawReader; | |
466 | return result; | |
bc331d5b | 467 | } |
bdf99a93 | 468 | |
469 | ||
bc331d5b | 470 | //_____________________________________________________________________ |
1542c62d | 471 | Bool_t AliTPCCalibPedestal::TestEvent() |
8bc7e885 | 472 | { |
473 | // | |
474 | // Test event loop | |
bc331d5b | 475 | // fill one oroc and one iroc with random gaus |
8bc7e885 | 476 | // |
477 | ||
478 | gRandom->SetSeed(0); | |
479 | ||
aa983e4f | 480 | for (UInt_t iSec=0; iSec<72; ++iSec){ |
8bc7e885 | 481 | if (iSec%36>0) continue; |
aa983e4f | 482 | for (UInt_t iRow=0; iRow < fROC->GetNRows(iSec); ++iRow){ |
483 | for (UInt_t iPad=0; iPad < fROC->GetNPads(iSec,iRow); ++iPad){ | |
484 | for (UInt_t iTimeBin=0; iTimeBin<1024; ++iTimeBin){ | |
bc331d5b | 485 | Float_t signal=(Int_t)(iRow+3+gRandom->Gaus(0,.7)); |
8bc7e885 | 486 | if ( signal>0 )Update(iSec,iRow,iPad,iTimeBin,signal); |
487 | } | |
488 | } | |
489 | } | |
490 | } | |
491 | return kTRUE; | |
492 | } | |
bdf99a93 | 493 | |
494 | ||
8bc7e885 | 495 | //_____________________________________________________________________ |
1542c62d | 496 | TH2F* AliTPCCalibPedestal::GetHisto(Int_t sector, TObjArray *arr, |
4958b652 | 497 | Int_t nbinsY, Float_t ymin, Float_t ymax, |
498 | Char_t *type, Bool_t force) | |
8bc7e885 | 499 | { |
500 | // | |
501 | // return pointer to Q histogram | |
502 | // if force is true create a new histogram if it doesn't exist allready | |
503 | // | |
504 | if ( !force || arr->UncheckedAt(sector) ) | |
bc331d5b | 505 | return (TH2F*)arr->UncheckedAt(sector); |
8bc7e885 | 506 | |
507 | // if we are forced and histogram doesn't yes exist create it | |
508 | Char_t name[255], title[255]; | |
509 | ||
510 | sprintf(name,"hCalib%s%.2d",type,sector); | |
bc331d5b | 511 | sprintf(title,"%s calibration histogram sector %.2d;ADC channel;Channel (pad)",type,sector); |
8bc7e885 | 512 | |
513 | // new histogram with Q calib information. One value for each pad! | |
bc331d5b | 514 | TH2F* hist = new TH2F(name,title, |
8bc7e885 | 515 | nbinsY, ymin, ymax, |
516 | fROC->GetNChannels(sector),0,fROC->GetNChannels(sector) | |
517 | ); | |
518 | hist->SetDirectory(0); | |
519 | arr->AddAt(hist,sector); | |
520 | return hist; | |
521 | } | |
bdf99a93 | 522 | |
523 | ||
8bc7e885 | 524 | //_____________________________________________________________________ |
1542c62d | 525 | TH2F* AliTPCCalibPedestal::GetHistoPedestal(Int_t sector, Bool_t force) |
8bc7e885 | 526 | { |
527 | // | |
528 | // return pointer to T0 histogram | |
529 | // if force is true create a new histogram if it doesn't exist allready | |
530 | // | |
531 | TObjArray *arr = &fHistoPedestalArray; | |
532 | return GetHisto(sector, arr, fAdcMax-fAdcMin, fAdcMin, fAdcMax, "Pedestal", force); | |
533 | } | |
bdf99a93 | 534 | |
535 | ||
8bc7e885 | 536 | //_____________________________________________________________________ |
1542c62d | 537 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRoc(Int_t sector, TObjArray* arr, Bool_t force) |
8bc7e885 | 538 | { |
539 | // | |
540 | // return pointer to ROC Calibration | |
541 | // if force is true create a new histogram if it doesn't exist allready | |
542 | // | |
543 | if ( !force || arr->UncheckedAt(sector) ) | |
544 | return (AliTPCCalROC*)arr->UncheckedAt(sector); | |
545 | ||
aa983e4f | 546 | // if we are forced and the histogram doesn't yet exist create it |
8bc7e885 | 547 | |
548 | // new AliTPCCalROC for T0 information. One value for each pad! | |
549 | AliTPCCalROC *croc = new AliTPCCalROC(sector); | |
8bc7e885 | 550 | arr->AddAt(croc,sector); |
551 | return croc; | |
552 | } | |
bdf99a93 | 553 | |
554 | ||
8bc7e885 | 555 | //_____________________________________________________________________ |
1542c62d | 556 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRocPedestal(Int_t sector, Bool_t force) |
8bc7e885 | 557 | { |
558 | // | |
1542c62d | 559 | // return pointer to ROC with Pedestal data |
8bc7e885 | 560 | // if force is true create a new histogram if it doesn't exist allready |
561 | // | |
562 | TObjArray *arr = &fCalRocArrayPedestal; | |
563 | return GetCalRoc(sector, arr, force); | |
564 | } | |
bdf99a93 | 565 | |
566 | ||
8bc7e885 | 567 | //_____________________________________________________________________ |
1542c62d | 568 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRocSigma(Int_t sector, Bool_t force) |
8bc7e885 | 569 | { |
570 | // | |
1542c62d | 571 | // return pointer to ROC with signal witdth in sigma |
8bc7e885 | 572 | // if force is true create a new histogram if it doesn't exist allready |
573 | // | |
1542c62d | 574 | TObjArray *arr = &fCalRocArraySigma; |
8bc7e885 | 575 | return GetCalRoc(sector, arr, force); |
576 | } | |
1542c62d | 577 | //_____________________________________________________________________ |
578 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRocMean(Int_t sector, Bool_t force) | |
579 | { | |
580 | // | |
581 | // return pointer to ROC with signal mean information | |
582 | // if force is true create a new histogram if it doesn't exist allready | |
583 | // | |
584 | TObjArray *arr = &fCalRocArrayMean; | |
585 | return GetCalRoc(sector, arr, force); | |
586 | } | |
587 | ||
588 | //_____________________________________________________________________ | |
589 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRocRMS(Int_t sector, Bool_t force) | |
590 | { | |
591 | // | |
592 | // return pointer to signal width ROC Calibration | |
593 | // if force is true create a new histogram if it doesn't exist allready | |
594 | // | |
595 | TObjArray *arr = &fCalRocArrayRMS; | |
596 | return GetCalRoc(sector, arr, force); | |
597 | } | |
bdf99a93 | 598 | |
599 | ||
8bc7e885 | 600 | //_____________________________________________________________________ |
aa983e4f | 601 | void AliTPCCalibPedestal::Merge(AliTPCCalibPedestal *ped) |
602 | { | |
bdf99a93 | 603 | // |
604 | // Merge reference histograms of sig to the current AliTPCCalibSignal | |
605 | // | |
aa983e4f | 606 | |
bdf99a93 | 607 | // merge histograms |
608 | for (Int_t iSec=0; iSec<72; ++iSec){ | |
609 | TH2F *hRefPedMerge = ped->GetHistoPedestal(iSec); | |
610 | ||
611 | if ( hRefPedMerge ){ | |
612 | TDirectory *dir = hRefPedMerge->GetDirectory(); hRefPedMerge->SetDirectory(0); | |
613 | TH2F *hRefPed = GetHistoPedestal(iSec); | |
614 | if ( hRefPed ) hRefPed->Add(hRefPedMerge); | |
615 | else { | |
616 | TH2F *hist = new TH2F(*hRefPedMerge); | |
617 | hist->SetDirectory(0); | |
618 | fHistoPedestalArray.AddAt(hist, iSec); | |
619 | } | |
620 | hRefPedMerge->SetDirectory(dir); | |
621 | } | |
622 | } | |
aa983e4f | 623 | |
bdf99a93 | 624 | // merge array |
625 | // ... | |
aa983e4f | 626 | |
aa983e4f | 627 | } |
bdf99a93 | 628 | |
629 | ||
aa983e4f | 630 | //_____________________________________________________________________ |
1542c62d | 631 | void AliTPCCalibPedestal::Analyse() |
8bc7e885 | 632 | { |
bdf99a93 | 633 | // |
634 | // Calculate calibration constants | |
635 | // | |
8bc7e885 | 636 | |
bdf99a93 | 637 | Int_t nbinsAdc = fAdcMax-fAdcMin; |
8bc7e885 | 638 | |
1542c62d | 639 | TVectorD param(4); |
bdf99a93 | 640 | TMatrixD dummy(3,3); |
8bc7e885 | 641 | |
1542c62d | 642 | TH1F *hChannel=new TH1F("hChannel","hChannel",nbinsAdc,fAdcMin,fAdcMax); |
643 | ||
bdf99a93 | 644 | Float_t *array_hP=0; |
8bc7e885 | 645 | |
bdf99a93 | 646 | for (Int_t iSec=0; iSec<72; ++iSec){ |
647 | TH2F *hP = GetHistoPedestal(iSec); | |
648 | if ( !hP ) continue; | |
8bc7e885 | 649 | |
bdf99a93 | 650 | AliTPCCalROC *rocPedestal = GetCalRocPedestal(iSec,kTRUE); |
1542c62d | 651 | AliTPCCalROC *rocSigma = GetCalRocSigma(iSec,kTRUE); |
652 | AliTPCCalROC *rocMean = GetCalRocMean(iSec,kTRUE); | |
bdf99a93 | 653 | AliTPCCalROC *rocRMS = GetCalRocRMS(iSec,kTRUE); |
8bc7e885 | 654 | |
bdf99a93 | 655 | array_hP = hP->GetArray(); |
656 | UInt_t nChannels = fROC->GetNChannels(iSec); | |
8bc7e885 | 657 | |
bdf99a93 | 658 | for (UInt_t iChannel=0; iChannel<nChannels; ++iChannel){ |
659 | Int_t offset = (nbinsAdc+2)*(iChannel+1)+1; | |
1542c62d | 660 | //calculate mean and sigma using a gaus fit |
9e359afd | 661 | //Double_t ret = |
662 | AliMathBase::FitGaus(array_hP+offset,nbinsAdc,fAdcMin,fAdcMax,¶m,&dummy); | |
bdf99a93 | 663 | // if the fitting failed set noise and pedestal to 0 |
1542c62d | 664 | // is now done in AliMathBase::FitGaus ! |
665 | // if ( ret == -4 ) { | |
666 | // param[1]=0; | |
667 | // param[2]=0; | |
668 | // } | |
bdf99a93 | 669 | rocPedestal->SetValue(iChannel,param[1]); |
1542c62d | 670 | rocSigma->SetValue(iChannel,param[2]); |
671 | //calculate mean and RMS using a truncated means | |
672 | hChannel->Set(nbinsAdc+2,array_hP+offset-1); | |
673 | hChannel->SetEntries(param[3]); | |
674 | param[1]=0; | |
675 | param[2]=0; | |
676 | if ( param[3]>0 ) AliMathBase::TruncatedMean(hChannel,¶m,fAnaMeanDown,fAnaMeanUp); | |
677 | rocMean->SetValue(iChannel,param[1]); | |
bdf99a93 | 678 | rocRMS->SetValue(iChannel,param[2]); |
679 | } | |
680 | } | |
1542c62d | 681 | delete hChannel; |
bdf99a93 | 682 | } |
8bc7e885 | 683 | |
bdf99a93 | 684 | |
685 | //_____________________________________________________________________ | |
686 | void AliTPCCalibPedestal::AnalyseTime(Int_t nevents) | |
687 | { | |
688 | // | |
689 | // Calculate for each channel and time bin the mean pedestal. This | |
690 | // is used on LDC by TPCPEDESTALda to generate data used for configuration | |
691 | // of the pattern memory for baseline subtraction in the ALTROs. | |
692 | // | |
693 | ||
694 | if ( nevents <= 0 ) return; | |
695 | if ( fTimeAnalysis ) { | |
696 | for (Int_t i = 0; i < 159; i++) { // padrows | |
697 | for (Int_t j = 0; j < 140; j++) { // pads per row | |
698 | for (Int_t k = 0; k < 1024; k++) { // time bins per pad | |
699 | fTimeSignal[i][j].AddAt(fTimeSignal[i][j].At(k)/(Float_t)nevents, k); | |
8bc7e885 | 700 | } |
bdf99a93 | 701 | } |
8bc7e885 | 702 | } |
bdf99a93 | 703 | } |
8bc7e885 | 704 | } |
bdf99a93 | 705 | |
706 | ||
8bc7e885 | 707 | //_____________________________________________________________________ |
1542c62d | 708 | void AliTPCCalibPedestal::DumpToFile(const Char_t *filename, const Char_t *dir, Bool_t append) |
8bc7e885 | 709 | { |
bdf99a93 | 710 | // |
711 | // Write class to file | |
712 | // | |
8bc7e885 | 713 | |
bdf99a93 | 714 | TString sDir(dir); |
715 | TString option; | |
8bc7e885 | 716 | |
bdf99a93 | 717 | if ( append ) |
718 | option = "update"; | |
719 | else | |
720 | option = "recreate"; | |
8bc7e885 | 721 | |
bdf99a93 | 722 | TDirectory *backup = gDirectory; |
723 | TFile f(filename,option.Data()); | |
724 | f.cd(); | |
725 | if ( !sDir.IsNull() ){ | |
726 | f.mkdir(sDir.Data()); | |
727 | f.cd(sDir); | |
728 | } | |
729 | this->Write(); | |
730 | f.Close(); | |
8bc7e885 | 731 | |
bdf99a93 | 732 | if ( backup ) backup->cd(); |
8bc7e885 | 733 | } |