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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> |
ac940b58 | 29 | #include <TMap.h> |
8bc7e885 | 30 | //AliRoot includes |
31 | #include "AliRawReader.h" | |
32 | #include "AliRawReaderRoot.h" | |
bc331d5b | 33 | #include "AliRawReaderDate.h" |
8bc7e885 | 34 | #include "AliTPCCalROC.h" |
8bc7e885 | 35 | #include "AliTPCROC.h" |
8bc7e885 | 36 | #include "AliMathBase.h" |
8bc7e885 | 37 | #include "TTreeStream.h" |
38 | ||
bc331d5b | 39 | //date |
40 | #include "event.h" | |
41 | ||
42 | //header file | |
43 | #include "AliTPCCalibPedestal.h" | |
8bc7e885 | 44 | |
45 | ||
aa983e4f | 46 | /////////////////////////////////////////////////////////////////////////////////////// |
47 | // Implementation of the TPC pedestal and noise calibration | |
48 | // | |
49 | // Origin: Jens Wiechula, Marian Ivanov J.Wiechula@gsi.de, Marian.Ivanov@cern.ch | |
50 | // | |
51 | // | |
52 | // ************************************************************************************* | |
53 | // * Class Description * | |
54 | // ************************************************************************************* | |
55 | // | |
56 | // Working principle: | |
57 | // ------------------ | |
58 | // Raw pedestal data is processed by calling one of the ProcessEvent(...) functions | |
59 | // (see below). These in the end call the Update(...) function, where the data is filled | |
60 | // into histograms. | |
61 | // | |
62 | // For each ROC one TH2F histo (ROC channel vs. ADC channel) is created when | |
63 | // it is filled for the first time (GetHistoPedestal(ROC,kTRUE)). All histos are stored in the | |
64 | // TObjArray fHistoPedestalArray. | |
65 | // | |
66 | // For a fast filling of the histogram the corresponding bin number of the channel and ADC channel | |
67 | // is computed by hand and the histogram array is accessed directly via its pointer. | |
68 | // ATTENTION: Doing so the the entry counter of the histogram is not increased | |
69 | // this means that e.g. the colz draw option gives an empty plot unless | |
70 | // calling 'histo->SetEntries(1)' before drawing. | |
71 | // | |
72 | // After accumulating the desired statistics the Analyse() function has to be called. | |
73 | // Whithin this function the pedestal and noise values are calculated for each pad, using | |
74 | // the fast gaus fit function AliMathBase::FitGaus(...), and the calibration | |
75 | // storage classes (AliTPCCalROC) are filled for each ROC. | |
76 | // The calibration information is stored in the TObjArrays fCalRocArrayPedestal and fCalRocArrayRMS; | |
77 | // | |
78 | // | |
79 | // | |
80 | // User interface for filling data: | |
81 | // -------------------------------- | |
82 | // | |
83 | // To Fill information one of the following functions can be used: | |
84 | // | |
85 | // Bool_t ProcessEvent(eventHeaderStruct *event); | |
86 | // - process Date event | |
87 | // - use AliTPCRawReaderDate and call ProcessEvent(AliRawReader *rawReader) | |
88 | // | |
89 | // Bool_t ProcessEvent(AliRawReader *rawReader); | |
90 | // - process AliRawReader event | |
829455ad | 91 | // - use AliTPCRawStreamV3 to loop over data and call ProcessEvent(AliTPCRawStreamV3 *rawStream) |
aa983e4f | 92 | // |
829455ad | 93 | // Bool_t ProcessEvent(AliTPCRawStreamV3 *rawStream); |
94 | // - process event from AliTPCRawStreamV3 | |
aa983e4f | 95 | // - call Update function for signal filling |
96 | // | |
97 | // Int_t Update(const Int_t isector, const Int_t iRow, const Int_t | |
98 | // iPad, const Int_t iTimeBin, const Float_t signal); | |
99 | // - directly fill signal information (sector, row, pad, time bin, pad) | |
100 | // to the reference histograms | |
101 | // | |
102 | // It is also possible to merge two independently taken calibrations using the function | |
103 | // | |
104 | // void Merge(AliTPCCalibPedestal *ped) | |
105 | // - copy histograms in 'ped' if the do not exist in this instance | |
106 | // - Add histograms in 'ped' to the histograms in this instance if the allready exist | |
107 | // - After merging call Analyse again! | |
108 | // | |
109 | // | |
110 | // | |
111 | // -- example: filling data using root raw data: | |
112 | // void fillPedestal(Char_t *filename) | |
113 | // { | |
114 | // rawReader = new AliRawReaderRoot(fileName); | |
115 | // if ( !rawReader ) return; | |
116 | // AliTPCCalibPedestal *calib = new AliTPCCalibPedestal; | |
117 | // while (rawReader->NextEvent()){ | |
118 | // calib->ProcessEvent(rawReader); | |
119 | // } | |
120 | // calib->Analyse(); | |
121 | // calib->DumpToFile("PedestalData.root"); | |
122 | // delete rawReader; | |
123 | // delete calib; | |
124 | // } | |
125 | // | |
126 | // | |
127 | // What kind of information is stored and how to retrieve them: | |
128 | // ------------------------------------------------------------ | |
129 | // | |
130 | // - Accessing the 'Reference Histograms' (pedestal distribution histograms): | |
131 | // | |
132 | // TH2F *GetHistoPedestal(Int_t sector); | |
133 | // | |
134 | // - Accessing the calibration storage objects: | |
135 | // | |
1542c62d | 136 | // AliTPCCalROC *GetCalRocPedestal(Int_t sector); - for the pedestal values, mean from gaus fit |
137 | // AliTPCCalROC *GetCalRocSigma(Int_t sector); - for the Noise values, sigma from guas fit | |
138 | // AliTPCCalROC *GetCalRocMean(Int_t sector); - for the pedestal values, truncated mean | |
139 | // AliTPCCalROC *GetCalRocRMS(Int_t sector); - for the Noise values, rms from truncated mean | |
aa983e4f | 140 | // |
141 | // example for visualisation: | |
142 | // if the file "PedestalData.root" was created using the above example one could do the following: | |
143 | // | |
144 | // TFile filePedestal("PedestalData.root") | |
145 | // AliTPCCalibPedestal *ped = (AliTPCCalibPedestal*)filePedestal->Get("AliTPCCalibPedestal"); | |
146 | // ped->GetCalRocPedestal(0)->Draw("colz"); | |
147 | // ped->GetCalRocRMS(0)->Draw("colz"); | |
148 | // | |
149 | // or use the AliTPCCalPad functionality: | |
150 | // AliTPCCalPad padPedestal(ped->GetCalPadPedestal()); | |
151 | // AliTPCCalPad padNoise(ped->GetCalPadRMS()); | |
152 | // padPedestal->MakeHisto2D()->Draw("colz"); //Draw A-Side Pedestal Information | |
153 | // padNoise->MakeHisto2D()->Draw("colz"); //Draw A-Side Noise Information | |
154 | // | |
155 | /* | |
156 | example: fill pedestal with gausschen noise | |
157 | AliTPCCalibPedestal ped; | |
158 | ped.TestEvent(); | |
159 | ped.Analyse(); | |
160 | //Draw output; | |
161 | TCanvas* c1 = new TCanvas; | |
162 | c1->Divide(1,2); | |
163 | c1->cd(1); | |
164 | ped.GetHistoPedestal(0)->SetEntries(1); //needed in order for colz to work, reason: fast filling does not increase the entries counter | |
165 | ped.GetHistoPedestal(0)->Draw("colz"); | |
166 | c1->cd(2); | |
167 | ped.GetHistoPedestal(36)->SetEntries(1); //needed in order for colz to work, reason: fast filling does not increase the entries counter | |
168 | ped.GetHistoPedestal(36)->Draw("colz"); | |
169 | TCanvas* c2 = new TCanvas; | |
170 | c2->Divide(2,2); | |
171 | c2->cd(1); | |
172 | ped.GetCalRocPedestal(0)->Draw("colz"); | |
173 | c2->cd(2); | |
174 | ped.GetCalRocRMS(0)->Draw("colz"); | |
175 | c2->cd(3); | |
176 | ped.GetCalRocPedestal(36)->Draw("colz"); | |
177 | c2->cd(4); | |
178 | ped.GetCalRocRMS(36)->Draw("colz"); | |
aa983e4f | 179 | */ |
bdf99a93 | 180 | // |
181 | // Time dependent pedestals: | |
182 | // | |
183 | // If wished there is the possibility to calculate for each channel and time bin | |
184 | // the mean pedestal [pedestals(t)]. This is done by | |
185 | // | |
186 | // 1) setting SetTimeAnalysis(kTRUE), | |
187 | // 2) processing the data by looping over the events using ProcessEvent(..) | |
188 | // 3) calling the Analyse() and AnalyseTime(nevents) functions (providing nevents) | |
189 | // 4) getting the pedestals(t) using TArrayF **timePed = calibPedestal.GetTimePedestals(); | |
190 | // 5) looking at values using timePed[row][pad].At(timebin) | |
191 | // | |
192 | // This functionality is intended to be used on an LDC bu the detector algorithm | |
193 | // (TPCPEDESTALda) to generate a data set used for configuration of the pattern | |
194 | // memory for baseline subtraction in the ALTROs. Later the information should also | |
195 | // be stored as reference data. | |
196 | // | |
8bc7e885 | 197 | |
198 | ||
aa983e4f | 199 | ClassImp(AliTPCCalibPedestal) |
8bc7e885 | 200 | |
1542c62d | 201 | AliTPCCalibPedestal::AliTPCCalibPedestal() : |
880c3382 | 202 | AliTPCCalibRawBase(), |
8bc7e885 | 203 | fAdcMin(1), |
204 | fAdcMax(100), | |
1542c62d | 205 | fAnaMeanDown(0.), |
206 | fAnaMeanUp(1.), | |
bdf99a93 | 207 | fTimeAnalysis(kFALSE), |
8bc7e885 | 208 | fCalRocArrayPedestal(72), |
1542c62d | 209 | fCalRocArraySigma(72), |
bdf99a93 | 210 | fHistoPedestalArray(72), |
1542c62d | 211 | fTimeSignal(NULL), |
212 | fCalRocArrayMean(72), | |
213 | fCalRocArrayRMS(72) | |
8bc7e885 | 214 | { |
bdf99a93 | 215 | // |
216 | // default constructor | |
217 | // | |
880c3382 | 218 | SetNameTitle("AliTPCCalibPedestal","AliTPCCalibPedestal"); |
219 | fFirstTimeBin=60; | |
220 | fLastTimeBin=1000; | |
8bc7e885 | 221 | } |
bdf99a93 | 222 | |
223 | ||
bc331d5b | 224 | //_____________________________________________________________________ |
1542c62d | 225 | AliTPCCalibPedestal::AliTPCCalibPedestal(const AliTPCCalibPedestal &ped) : |
880c3382 | 226 | AliTPCCalibRawBase(ped), |
bc331d5b | 227 | fAdcMin(ped.GetAdcMin()), |
228 | fAdcMax(ped.GetAdcMax()), | |
1542c62d | 229 | fAnaMeanDown(ped.fAnaMeanDown), |
230 | fAnaMeanUp(ped.fAnaMeanUp), | |
bdf99a93 | 231 | fTimeAnalysis(ped.fTimeAnalysis), |
bc331d5b | 232 | fCalRocArrayPedestal(72), |
1542c62d | 233 | fCalRocArraySigma(72), |
bdf99a93 | 234 | fHistoPedestalArray(72), |
1542c62d | 235 | fTimeSignal(ped.fTimeSignal), |
236 | fCalRocArrayMean(72), | |
237 | fCalRocArrayRMS(72) | |
bc331d5b | 238 | { |
bdf99a93 | 239 | // |
240 | // copy constructor | |
241 | // | |
242 | for (Int_t iSec = 0; iSec < 72; ++iSec){ | |
243 | const AliTPCCalROC *calPed = (AliTPCCalROC*)ped.fCalRocArrayPedestal.UncheckedAt(iSec); | |
244 | const AliTPCCalROC *calRMS = (AliTPCCalROC*)ped.fCalRocArrayRMS.UncheckedAt(iSec); | |
245 | const TH2F *hPed = (TH2F*)ped.fHistoPedestalArray.UncheckedAt(iSec); | |
246 | ||
247 | if ( calPed != 0x0 ) fCalRocArrayPedestal.AddAt(new AliTPCCalROC(*calPed), iSec); | |
248 | if ( calRMS != 0x0 ) fCalRocArrayRMS.AddAt(new AliTPCCalROC(*calRMS), iSec); | |
249 | ||
250 | if ( hPed != 0x0 ){ | |
251 | TH2F *hNew = new TH2F(*hPed); | |
252 | hNew->SetDirectory(0); | |
253 | fHistoPedestalArray.AddAt(hNew,iSec); | |
bc331d5b | 254 | } |
bdf99a93 | 255 | } |
bc331d5b | 256 | } |
ac940b58 | 257 | AliTPCCalibPedestal::AliTPCCalibPedestal(const TMap *config): |
880c3382 | 258 | AliTPCCalibRawBase(), |
ac940b58 | 259 | fAdcMin(1), |
260 | fAdcMax(100), | |
261 | fAnaMeanDown(0.), | |
262 | fAnaMeanUp(1.), | |
263 | fTimeAnalysis(kFALSE), | |
ac940b58 | 264 | fCalRocArrayPedestal(72), |
265 | fCalRocArraySigma(72), | |
266 | fHistoPedestalArray(72), | |
267 | fTimeSignal(NULL), | |
268 | fCalRocArrayMean(72), | |
269 | fCalRocArrayRMS(72) | |
270 | { | |
271 | // | |
272 | // This constructor uses a TMap for setting some parametes | |
273 | // | |
880c3382 | 274 | SetNameTitle("AliTPCCalibPedestal","AliTPCCalibPedestal"); |
275 | fFirstTimeBin=60; | |
276 | fLastTimeBin=1000; | |
ac940b58 | 277 | if (config->GetValue("FirstTimeBin")) fFirstTimeBin = ((TObjString*)config->GetValue("FirstTimeBin"))->GetString().Atoi(); |
278 | if (config->GetValue("LastTimeBin")) fLastTimeBin = ((TObjString*)config->GetValue("LastTimeBin"))->GetString().Atoi(); | |
279 | if (config->GetValue("AdcMin")) fAdcMin = ((TObjString*)config->GetValue("AdcMin"))->GetString().Atoi(); | |
280 | if (config->GetValue("AdcMax")) fAdcMax = ((TObjString*)config->GetValue("AdcMax"))->GetString().Atoi(); | |
281 | if (config->GetValue("TimeAnalysis")) SetTimeAnalysis(((TObjString*)config->GetValue("TimeAnalysis"))->GetString().Atoi()); | |
ac940b58 | 282 | } |
bdf99a93 | 283 | |
284 | ||
bc331d5b | 285 | //_____________________________________________________________________ |
286 | AliTPCCalibPedestal& AliTPCCalibPedestal::operator = (const AliTPCCalibPedestal &source) | |
287 | { | |
288 | // | |
289 | // assignment operator | |
290 | // | |
291 | if (&source == this) return *this; | |
292 | new (this) AliTPCCalibPedestal(source); | |
8bc7e885 | 293 | |
bc331d5b | 294 | return *this; |
295 | } | |
bdf99a93 | 296 | |
297 | ||
8bc7e885 | 298 | //_____________________________________________________________________ |
1542c62d | 299 | AliTPCCalibPedestal::~AliTPCCalibPedestal() |
8bc7e885 | 300 | { |
301 | // | |
302 | // destructor | |
303 | // | |
8bc7e885 | 304 | |
bdf99a93 | 305 | fCalRocArrayPedestal.Delete(); |
306 | fCalRocArrayRMS.Delete(); | |
a480de15 | 307 | fCalRocArraySigma.Delete(); |
bdf99a93 | 308 | fHistoPedestalArray.Delete(); |
309 | ||
310 | if ( fTimeSignal ) { | |
311 | for (Int_t i = 0; i < 159; i++) { | |
312 | delete [] fTimeSignal[i]; | |
313 | fTimeSignal[i] = 0; | |
314 | } | |
315 | delete [] fTimeSignal; | |
316 | fTimeSignal = 0; | |
317 | } | |
4958b652 | 318 | |
319 | // do not delete fMapping, because we do not own it. | |
320 | ||
bdf99a93 | 321 | } |
322 | ||
323 | ||
324 | //_____________________________________________________________________ | |
325 | void AliTPCCalibPedestal::SetTimeAnalysis(Bool_t time) | |
326 | { | |
327 | // | |
328 | // Use time dependent analysis: Pedestals are analysed as a function | |
329 | // of the drift time. There is one mean value generated for each time | |
330 | // bin and each channel. It can be used as reference data and for | |
331 | // configuration of the ALTRO pattern memory for baseline subtraction. | |
332 | // | |
333 | // ATTENTION: Use only on LDC in TPCPEDESTALda! On a LDC we get data | |
334 | // only from one sector. For the full TPC we would need a lot of | |
335 | // memory (36*159*140*1024*4bytes = 3.3GB)! | |
336 | // | |
337 | ||
338 | fTimeAnalysis = time; | |
339 | ||
340 | if ( !fTimeAnalysis ) return; | |
341 | ||
342 | // prepare array for one sector (159*140*1024*4bytes = 92MB): | |
343 | fTimeSignal = new TArrayF*[159]; | |
344 | for (Int_t i = 0; i < 159; i++) { // padrows | |
345 | fTimeSignal[i] = new TArrayF[140]; | |
346 | for (Int_t j = 0; j < 140; j++) { // pads per row | |
347 | fTimeSignal[i][j].Set(1024); | |
348 | for (Int_t k = 0; k < 1024; k++) { // time bins per pad | |
349 | fTimeSignal[i][j].AddAt(0., k); | |
350 | } | |
351 | } | |
352 | } | |
aa983e4f | 353 | } |
bdf99a93 | 354 | |
355 | ||
8bc7e885 | 356 | //_____________________________________________________________________ |
1542c62d | 357 | Int_t AliTPCCalibPedestal::Update(const Int_t icsector, |
bdf99a93 | 358 | const Int_t icRow, |
359 | const Int_t icPad, | |
360 | const Int_t icTimeBin, | |
361 | const Float_t csignal) | |
8bc7e885 | 362 | { |
bdf99a93 | 363 | // |
364 | // Signal filling method | |
365 | // | |
b401648b | 366 | if (icRow<0) return 0; |
367 | if (icPad<0) return 0; | |
368 | if (icTimeBin<0) return 0; | |
369 | ||
bdf99a93 | 370 | // Time dependent pedestals |
371 | if ( fTimeAnalysis ) { | |
372 | if ( icsector < 36 ) // IROC | |
373 | fTimeSignal[icRow][icPad].AddAt(fTimeSignal[icRow][icPad].At(icTimeBin)+csignal, icTimeBin); | |
374 | else | |
375 | fTimeSignal[icRow+63][icPad].AddAt(fTimeSignal[icRow+63][icPad].At(icTimeBin)+csignal, icTimeBin); | |
376 | } | |
377 | //return if we are out of the specified time bin or adc range | |
378 | if ( (icTimeBin>fLastTimeBin) || (icTimeBin<fFirstTimeBin) ) return 0; | |
379 | if ( ((Int_t)csignal>fAdcMax) || ((Int_t)csignal<fAdcMin) ) return 0; | |
8bc7e885 | 380 | |
bdf99a93 | 381 | Int_t iChannel = fROC->GetRowIndexes(icsector)[icRow]+icPad; // global pad position in sector |
8bc7e885 | 382 | |
4958b652 | 383 | // fast filling method |
bdf99a93 | 384 | // Attention: the entry counter of the histogram is not increased |
385 | // this means that e.g. the colz draw option gives an empty plot | |
386 | Int_t bin = (iChannel+1)*(fAdcMax-fAdcMin+2)+((Int_t)csignal-fAdcMin+1); | |
8bc7e885 | 387 | |
bdf99a93 | 388 | GetHistoPedestal(icsector,kTRUE)->GetArray()[bin]++; |
8bc7e885 | 389 | |
bdf99a93 | 390 | return 0; |
8bc7e885 | 391 | } |
4958b652 | 392 | |
393 | ||
bc331d5b | 394 | //_____________________________________________________________________ |
1542c62d | 395 | Bool_t AliTPCCalibPedestal::TestEvent() |
8bc7e885 | 396 | { |
397 | // | |
398 | // Test event loop | |
bc331d5b | 399 | // fill one oroc and one iroc with random gaus |
8bc7e885 | 400 | // |
401 | ||
880c3382 | 402 | gRandom->SetSeed(0); |
403 | ||
404 | for (UInt_t iSec=0; iSec<72; ++iSec){ | |
405 | if (iSec%36>0) continue; | |
406 | for (UInt_t iRow=0; iRow < fROC->GetNRows(iSec); ++iRow){ | |
407 | for (UInt_t iPad=0; iPad < fROC->GetNPads(iSec,iRow); ++iPad){ | |
408 | for (UInt_t iTimeBin=0; iTimeBin<1024; ++iTimeBin){ | |
409 | Float_t signal=(Int_t)(iRow+3+gRandom->Gaus(0,.7)); | |
410 | if ( signal>0 )Update(iSec,iRow,iPad,iTimeBin,signal); | |
411 | } | |
412 | } | |
8bc7e885 | 413 | } |
880c3382 | 414 | } |
415 | return kTRUE; | |
8bc7e885 | 416 | } |
bdf99a93 | 417 | |
418 | ||
8bc7e885 | 419 | //_____________________________________________________________________ |
1542c62d | 420 | TH2F* AliTPCCalibPedestal::GetHisto(Int_t sector, TObjArray *arr, |
4958b652 | 421 | Int_t nbinsY, Float_t ymin, Float_t ymax, |
a6e0ebfe | 422 | const Char_t *type, Bool_t force) |
8bc7e885 | 423 | { |
424 | // | |
425 | // return pointer to Q histogram | |
426 | // if force is true create a new histogram if it doesn't exist allready | |
427 | // | |
428 | if ( !force || arr->UncheckedAt(sector) ) | |
a3b590cf | 429 | return (TH2F*)arr->UncheckedAt(sector); |
8bc7e885 | 430 | |
431 | // if we are forced and histogram doesn't yes exist create it | |
8bc7e885 | 432 | // new histogram with Q calib information. One value for each pad! |
a3b590cf | 433 | TH2F* hist = new TH2F(Form("hCalib%s%.2d",type,sector), |
434 | Form("%s calibration histogram sector %.2d;ADC channel;Channel (pad)",type,sector), | |
435 | nbinsY, ymin, ymax, | |
436 | fROC->GetNChannels(sector),0,fROC->GetNChannels(sector) | |
437 | ); | |
8bc7e885 | 438 | hist->SetDirectory(0); |
439 | arr->AddAt(hist,sector); | |
440 | return hist; | |
441 | } | |
bdf99a93 | 442 | |
443 | ||
8bc7e885 | 444 | //_____________________________________________________________________ |
1542c62d | 445 | TH2F* AliTPCCalibPedestal::GetHistoPedestal(Int_t sector, Bool_t force) |
8bc7e885 | 446 | { |
447 | // | |
448 | // return pointer to T0 histogram | |
449 | // if force is true create a new histogram if it doesn't exist allready | |
450 | // | |
451 | TObjArray *arr = &fHistoPedestalArray; | |
452 | return GetHisto(sector, arr, fAdcMax-fAdcMin, fAdcMin, fAdcMax, "Pedestal", force); | |
453 | } | |
bdf99a93 | 454 | |
455 | ||
8bc7e885 | 456 | //_____________________________________________________________________ |
1542c62d | 457 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRoc(Int_t sector, TObjArray* arr, Bool_t force) |
8bc7e885 | 458 | { |
459 | // | |
460 | // return pointer to ROC Calibration | |
461 | // if force is true create a new histogram if it doesn't exist allready | |
462 | // | |
463 | if ( !force || arr->UncheckedAt(sector) ) | |
464 | return (AliTPCCalROC*)arr->UncheckedAt(sector); | |
465 | ||
aa983e4f | 466 | // if we are forced and the histogram doesn't yet exist create it |
8bc7e885 | 467 | |
468 | // new AliTPCCalROC for T0 information. One value for each pad! | |
469 | AliTPCCalROC *croc = new AliTPCCalROC(sector); | |
8bc7e885 | 470 | arr->AddAt(croc,sector); |
471 | return croc; | |
472 | } | |
bdf99a93 | 473 | |
474 | ||
8bc7e885 | 475 | //_____________________________________________________________________ |
1542c62d | 476 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRocPedestal(Int_t sector, Bool_t force) |
8bc7e885 | 477 | { |
478 | // | |
1542c62d | 479 | // return pointer to ROC with Pedestal data |
8bc7e885 | 480 | // if force is true create a new histogram if it doesn't exist allready |
481 | // | |
482 | TObjArray *arr = &fCalRocArrayPedestal; | |
483 | return GetCalRoc(sector, arr, force); | |
484 | } | |
bdf99a93 | 485 | |
486 | ||
8bc7e885 | 487 | //_____________________________________________________________________ |
1542c62d | 488 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRocSigma(Int_t sector, Bool_t force) |
8bc7e885 | 489 | { |
490 | // | |
1542c62d | 491 | // return pointer to ROC with signal witdth in sigma |
8bc7e885 | 492 | // if force is true create a new histogram if it doesn't exist allready |
493 | // | |
1542c62d | 494 | TObjArray *arr = &fCalRocArraySigma; |
8bc7e885 | 495 | return GetCalRoc(sector, arr, force); |
496 | } | |
1542c62d | 497 | //_____________________________________________________________________ |
498 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRocMean(Int_t sector, Bool_t force) | |
499 | { | |
500 | // | |
501 | // return pointer to ROC with signal mean information | |
502 | // if force is true create a new histogram if it doesn't exist allready | |
503 | // | |
504 | TObjArray *arr = &fCalRocArrayMean; | |
505 | return GetCalRoc(sector, arr, force); | |
506 | } | |
507 | ||
508 | //_____________________________________________________________________ | |
509 | AliTPCCalROC* AliTPCCalibPedestal::GetCalRocRMS(Int_t sector, Bool_t force) | |
510 | { | |
511 | // | |
512 | // return pointer to signal width ROC Calibration | |
513 | // if force is true create a new histogram if it doesn't exist allready | |
514 | // | |
515 | TObjArray *arr = &fCalRocArrayRMS; | |
516 | return GetCalRoc(sector, arr, force); | |
517 | } | |
bdf99a93 | 518 | |
519 | ||
8bc7e885 | 520 | //_____________________________________________________________________ |
7442bceb | 521 | void AliTPCCalibPedestal::Merge(AliTPCCalibPedestal * const ped) |
aa983e4f | 522 | { |
bdf99a93 | 523 | // |
829455ad | 524 | // Merge reference histograms of sig to the current AliTPCCalibPedestal |
bdf99a93 | 525 | // |
78f17711 | 526 | MergeBase(ped); |
bdf99a93 | 527 | // merge histograms |
528 | for (Int_t iSec=0; iSec<72; ++iSec){ | |
529 | TH2F *hRefPedMerge = ped->GetHistoPedestal(iSec); | |
7442bceb | 530 | |
bdf99a93 | 531 | if ( hRefPedMerge ){ |
532 | TDirectory *dir = hRefPedMerge->GetDirectory(); hRefPedMerge->SetDirectory(0); | |
533 | TH2F *hRefPed = GetHistoPedestal(iSec); | |
534 | if ( hRefPed ) hRefPed->Add(hRefPedMerge); | |
535 | else { | |
7442bceb | 536 | TH2F *hist = new TH2F(*hRefPedMerge); |
537 | hist->SetDirectory(0); | |
538 | fHistoPedestalArray.AddAt(hist, iSec); | |
bdf99a93 | 539 | } |
540 | hRefPedMerge->SetDirectory(dir); | |
541 | } | |
542 | } | |
7442bceb | 543 | |
bdf99a93 | 544 | // merge array |
545 | // ... | |
7442bceb | 546 | |
aa983e4f | 547 | } |
bdf99a93 | 548 | |
7442bceb | 549 | //_____________________________________________________________________ |
550 | Long64_t AliTPCCalibPedestal::Merge(TCollection * const list) | |
551 | { | |
552 | // | |
553 | // Merge all objects of this type in list | |
554 | // | |
555 | ||
556 | Long64_t nmerged=1; | |
557 | ||
558 | TIter next(list); | |
559 | AliTPCCalibPedestal *ce=0; | |
560 | TObject *o=0; | |
561 | ||
562 | while ( (o=next()) ){ | |
563 | ce=dynamic_cast<AliTPCCalibPedestal*>(o); | |
564 | if (ce){ | |
565 | Merge(ce); | |
566 | ++nmerged; | |
567 | } | |
568 | } | |
569 | ||
570 | return nmerged; | |
571 | } | |
bdf99a93 | 572 | |
aa983e4f | 573 | //_____________________________________________________________________ |
1542c62d | 574 | void AliTPCCalibPedestal::Analyse() |
8bc7e885 | 575 | { |
bdf99a93 | 576 | // |
577 | // Calculate calibration constants | |
578 | // | |
8bc7e885 | 579 | |
bdf99a93 | 580 | Int_t nbinsAdc = fAdcMax-fAdcMin; |
8bc7e885 | 581 | |
1542c62d | 582 | TVectorD param(4); |
bdf99a93 | 583 | TMatrixD dummy(3,3); |
8bc7e885 | 584 | |
1542c62d | 585 | TH1F *hChannel=new TH1F("hChannel","hChannel",nbinsAdc,fAdcMin,fAdcMax); |
586 | ||
7442bceb | 587 | Float_t *arrayhP=0; |
8bc7e885 | 588 | |
bdf99a93 | 589 | for (Int_t iSec=0; iSec<72; ++iSec){ |
590 | TH2F *hP = GetHistoPedestal(iSec); | |
591 | if ( !hP ) continue; | |
8bc7e885 | 592 | |
bdf99a93 | 593 | AliTPCCalROC *rocPedestal = GetCalRocPedestal(iSec,kTRUE); |
1542c62d | 594 | AliTPCCalROC *rocSigma = GetCalRocSigma(iSec,kTRUE); |
595 | AliTPCCalROC *rocMean = GetCalRocMean(iSec,kTRUE); | |
bdf99a93 | 596 | AliTPCCalROC *rocRMS = GetCalRocRMS(iSec,kTRUE); |
8bc7e885 | 597 | |
7442bceb | 598 | arrayhP = hP->GetArray(); |
bdf99a93 | 599 | UInt_t nChannels = fROC->GetNChannels(iSec); |
8bc7e885 | 600 | |
bdf99a93 | 601 | for (UInt_t iChannel=0; iChannel<nChannels; ++iChannel){ |
602 | Int_t offset = (nbinsAdc+2)*(iChannel+1)+1; | |
1542c62d | 603 | //calculate mean and sigma using a gaus fit |
9e359afd | 604 | //Double_t ret = |
7442bceb | 605 | AliMathBase::FitGaus(arrayhP+offset,nbinsAdc,fAdcMin,fAdcMax,¶m,&dummy); |
bdf99a93 | 606 | // if the fitting failed set noise and pedestal to 0 |
1542c62d | 607 | // is now done in AliMathBase::FitGaus ! |
608 | // if ( ret == -4 ) { | |
609 | // param[1]=0; | |
610 | // param[2]=0; | |
611 | // } | |
ac940b58 | 612 | if ( param[1]<fAdcMin || param[1]>fAdcMax ){ |
613 | param[1]=0; | |
614 | param[2]=0; | |
615 | } | |
bdf99a93 | 616 | rocPedestal->SetValue(iChannel,param[1]); |
1542c62d | 617 | rocSigma->SetValue(iChannel,param[2]); |
618 | //calculate mean and RMS using a truncated means | |
7442bceb | 619 | hChannel->Set(nbinsAdc+2,arrayhP+offset-1); |
1542c62d | 620 | hChannel->SetEntries(param[3]); |
621 | param[1]=0; | |
622 | param[2]=0; | |
623 | if ( param[3]>0 ) AliMathBase::TruncatedMean(hChannel,¶m,fAnaMeanDown,fAnaMeanUp); | |
624 | rocMean->SetValue(iChannel,param[1]); | |
bdf99a93 | 625 | rocRMS->SetValue(iChannel,param[2]); |
626 | } | |
627 | } | |
1542c62d | 628 | delete hChannel; |
bdf99a93 | 629 | } |
8bc7e885 | 630 | |
bdf99a93 | 631 | |
632 | //_____________________________________________________________________ | |
633 | void AliTPCCalibPedestal::AnalyseTime(Int_t nevents) | |
634 | { | |
635 | // | |
636 | // Calculate for each channel and time bin the mean pedestal. This | |
637 | // is used on LDC by TPCPEDESTALda to generate data used for configuration | |
638 | // of the pattern memory for baseline subtraction in the ALTROs. | |
639 | // | |
640 | ||
641 | if ( nevents <= 0 ) return; | |
642 | if ( fTimeAnalysis ) { | |
643 | for (Int_t i = 0; i < 159; i++) { // padrows | |
644 | for (Int_t j = 0; j < 140; j++) { // pads per row | |
645 | for (Int_t k = 0; k < 1024; k++) { // time bins per pad | |
646 | fTimeSignal[i][j].AddAt(fTimeSignal[i][j].At(k)/(Float_t)nevents, k); | |
8bc7e885 | 647 | } |
bdf99a93 | 648 | } |
8bc7e885 | 649 | } |
bdf99a93 | 650 | } |
8bc7e885 | 651 | } |