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92aeef15 | 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 | // $Id$ | |
17 | ||
9edefa04 | 18 | |
92aeef15 | 19 | #include "AliMUONDigitizerV3.h" |
20 | ||
4ce497c4 | 21 | #include "AliMUON.h" |
92aeef15 | 22 | #include "AliMUONCalibrationData.h" |
92aeef15 | 23 | #include "AliMUONConstants.h" |
24 | #include "AliMUONData.h" | |
4ce497c4 | 25 | #include "AliMUONDataIterator.h" |
92aeef15 | 26 | #include "AliMUONDigit.h" |
4ce497c4 | 27 | #include "AliMUONSegmentation.h" |
4ce497c4 | 28 | #include "AliMUONTriggerEfficiencyCells.h" |
4f8a3d8b | 29 | #include "AliMUONTriggerElectronics.h" |
05314992 | 30 | #include "AliMUONVCalibParam.h" |
9265505b | 31 | |
4ce497c4 | 32 | #include "AliMpDEIterator.h" |
92aeef15 | 33 | #include "AliMpDEManager.h" |
4ce497c4 | 34 | #include "AliMpIntPair.h" |
35 | #include "AliMpPad.h" | |
92aeef15 | 36 | #include "AliMpStationType.h" |
9265505b | 37 | #include "AliMpSegmentation.h" |
4ce497c4 | 38 | #include "AliMpVSegmentation.h" |
66f4c572 | 39 | #include "AliMpDEManager.h" |
866c3232 | 40 | #include "AliMpCathodType.h" |
9265505b | 41 | |
92aeef15 | 42 | #include "AliRun.h" |
43 | #include "AliRunDigitizer.h" | |
44 | #include "AliRunLoader.h" | |
9265505b | 45 | #include "AliLog.h" |
46 | ||
866c3232 | 47 | #include <Riostream.h> |
48 | #include <TF1.h> | |
49 | #include <TMath.h> | |
50 | #include <TRandom.h> | |
51 | #include <TString.h> | |
4ce497c4 | 52 | /// |
9265505b | 53 | /// \class AliMUONDigitizerV3 |
4ce497c4 | 54 | /// The digitizer is performing the transformation to go from SDigits (digits |
55 | /// w/o any electronic noise) to Digits (w/ electronic noise, and decalibration) | |
56 | /// | |
57 | /// The decalibration is performed by doing the reverse operation of the | |
58 | /// calibration, that is we do (Signal+pedestal)/gain -> ADC | |
59 | /// | |
60 | /// Note also that the digitizer takes care of merging sdigits that belongs | |
61 | /// to the same pad, either because we're merging several input sdigit files | |
62 | /// or with a single file because the sdigitizer does not merge sdigits itself | |
63 | /// (for performance reason mainly, and because anyway we know we have to do it | |
64 | /// here, at the digitization level). | |
65 | /// | |
66 | ||
67 | namespace | |
68 | { | |
69 | AliMUON* muon() | |
70 | { | |
71 | return static_cast<AliMUON*>(gAlice->GetModule("MUON")); | |
72 | } | |
4ce497c4 | 73 | } |
74 | ||
75 | const Double_t AliMUONDigitizerV3::fgkNSigmas=3; | |
76 | ||
9265505b | 77 | /// \cond CLASSIMP |
92aeef15 | 78 | ClassImp(AliMUONDigitizerV3) |
9265505b | 79 | /// \endcond |
92aeef15 | 80 | |
81 | //_____________________________________________________________________________ | |
82 | AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager, | |
4ce497c4 | 83 | Bool_t generateNoisyDigits) |
92aeef15 | 84 | : AliDigitizer(manager), |
92aeef15 | 85 | fIsInitialized(kFALSE), |
86 | fOutputData(0x0), | |
87 | fCalibrationData(0x0), | |
88 | fTriggerProcessor(0x0), | |
4ce497c4 | 89 | fTriggerEfficiency(0x0), |
ccea41d4 | 90 | fFindDigitIndexTimer(), |
91 | fGenerateNoisyDigitsTimer(), | |
92 | fExecTimer(), | |
4ce497c4 | 93 | fNoiseFunction(0x0), |
94 | fGenerateNoisyDigits(generateNoisyDigits) | |
92aeef15 | 95 | { |
9265505b | 96 | /// Ctor. |
97 | ||
92aeef15 | 98 | AliDebug(1,Form("AliRunDigitizer=%p",fManager)); |
4ce497c4 | 99 | fGenerateNoisyDigitsTimer.Start(kTRUE); fGenerateNoisyDigitsTimer.Stop(); |
100 | fExecTimer.Start(kTRUE); fExecTimer.Stop(); | |
101 | fFindDigitIndexTimer.Start(kTRUE); fFindDigitIndexTimer.Stop(); | |
92aeef15 | 102 | } |
103 | ||
104 | //_____________________________________________________________________________ | |
105 | AliMUONDigitizerV3::~AliMUONDigitizerV3() | |
106 | { | |
9265505b | 107 | /// Dtor. Note we're the owner of some pointers. |
108 | ||
92aeef15 | 109 | AliDebug(1,"dtor"); |
4ce497c4 | 110 | |
92aeef15 | 111 | delete fOutputData; |
112 | delete fCalibrationData; | |
113 | delete fTriggerProcessor; | |
4ce497c4 | 114 | delete fNoiseFunction; |
115 | ||
a7b01aa5 | 116 | AliDebug(1, Form("Execution time for FindDigitIndex() : R:%.2fs C:%.2fs", |
4ce497c4 | 117 | fFindDigitIndexTimer.RealTime(),fFindDigitIndexTimer.CpuTime())); |
118 | if ( fGenerateNoisyDigits ) | |
119 | { | |
a7b01aa5 | 120 | AliDebug(1, Form("Execution time for GenerateNoisyDigits() : R:%.2fs C:%.2fs", |
4ce497c4 | 121 | fGenerateNoisyDigitsTimer.RealTime(), |
122 | fGenerateNoisyDigitsTimer.CpuTime())); | |
123 | } | |
a7b01aa5 | 124 | AliDebug(1, Form("Execution time for Exec() : R:%.2fs C:%.2fs", |
4ce497c4 | 125 | fExecTimer.RealTime(),fExecTimer.CpuTime())); |
126 | ||
92aeef15 | 127 | } |
128 | ||
129 | //_____________________________________________________________________________ | |
130 | void | |
4ce497c4 | 131 | AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONDigit& digit, Bool_t addNoise) |
92aeef15 | 132 | { |
9265505b | 133 | /// For tracking digits, starting from an ideal digit's charge, we : |
134 | /// | |
135 | /// - add some noise (thus leading to a realistic charge), if requested to do so | |
136 | /// - divide by a gain (thus decalibrating the digit) | |
137 | /// - add a pedestal (thus decalibrating the digit) | |
138 | /// - sets the signal to zero if below 3*sigma of the noise | |
59b91539 | 139 | |
4ce497c4 | 140 | static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC. |
59b91539 | 141 | |
4ce497c4 | 142 | Float_t signal = digit.Signal(); |
59b91539 | 143 | |
144 | if ( !addNoise ) | |
145 | { | |
146 | digit.SetADC(TMath::Nint(signal)); | |
147 | return; | |
148 | } | |
92aeef15 | 149 | |
4ce497c4 | 150 | Int_t detElemId = digit.DetElemId(); |
92aeef15 | 151 | |
152 | Int_t manuId = digit.ManuId(); | |
153 | Int_t manuChannel = digit.ManuChannel(); | |
154 | ||
4ce497c4 | 155 | AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId); |
92aeef15 | 156 | if (!pedestal) |
59b91539 | 157 | { |
158 | AliFatal(Form("Could not get pedestal for DE=%d manuId=%d", | |
159 | detElemId,manuId)); | |
160 | } | |
05314992 | 161 | Float_t pedestalMean = pedestal->ValueAsFloat(manuChannel,0); |
162 | Float_t pedestalSigma = pedestal->ValueAsFloat(manuChannel,1); | |
59b91539 | 163 | |
4ce497c4 | 164 | AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId); |
92aeef15 | 165 | if (!gain) |
59b91539 | 166 | { |
167 | AliFatal(Form("Could not get gain for DE=%d manuId=%d", | |
168 | detElemId,manuId)); | |
169 | } | |
05314992 | 170 | Float_t gainMean = gain->ValueAsFloat(manuChannel,0); |
4ce497c4 | 171 | |
59b91539 | 172 | Float_t adcNoise = gRandom->Gaus(0.0,pedestalSigma); |
173 | ||
92aeef15 | 174 | Int_t adc; |
59b91539 | 175 | |
05314992 | 176 | if ( gainMean < 1E-6 ) |
92aeef15 | 177 | { |
59b91539 | 178 | AliError(Form("Got a too small gain %e for DE=%d manuId=%d manuChannel=%d. " |
179 | "Setting signal to 0.", | |
180 | gainMean,detElemId,manuId,manuChannel)); | |
92aeef15 | 181 | adc = 0; |
182 | } | |
59b91539 | 183 | else |
184 | { | |
185 | adc = TMath::Nint( signal / gainMean + pedestalMean + adcNoise);/// | |
186 | ||
187 | if ( adc <= pedestalMean + fgkNSigmas*pedestalSigma ) | |
188 | { | |
189 | adc = 0; | |
190 | } | |
191 | } | |
192 | ||
05314992 | 193 | // be sure we stick to 12 bits. |
4ce497c4 | 194 | if ( adc > kMaxADC ) |
59b91539 | 195 | { |
196 | adc = kMaxADC; | |
197 | } | |
198 | ||
92aeef15 | 199 | digit.SetPhysicsSignal(TMath::Nint(signal)); |
200 | digit.SetSignal(adc); | |
201 | digit.SetADC(adc); | |
202 | } | |
203 | ||
4ce497c4 | 204 | //_____________________________________________________________________________ |
205 | void | |
206 | AliMUONDigitizerV3::ApplyResponseToTriggerDigit(AliMUONDigit& digit, | |
207 | AliMUONData* data) | |
208 | { | |
9265505b | 209 | /// \todo add comment |
210 | ||
4ce497c4 | 211 | if ( !fTriggerEfficiency ) return; |
212 | ||
213 | AliMUONDigit* correspondingDigit = FindCorrespondingDigit(digit,data); | |
214 | ||
a0dc51a6 | 215 | if(!correspondingDigit)return;//reject bad correspondences |
216 | ||
4ce497c4 | 217 | Int_t detElemId = digit.DetElemId(); |
9265505b | 218 | |
219 | AliMpSegmentation* segmentation = AliMpSegmentation::Instance(); | |
4ce497c4 | 220 | const AliMpVSegmentation* segment[2] = |
221 | { | |
866c3232 | 222 | segmentation->GetMpSegmentation(detElemId,AliMp::GetCathodType(digit.Cathode())), |
223 | segmentation->GetMpSegmentation(detElemId,AliMp::GetCathodType(correspondingDigit->Cathode())) | |
4ce497c4 | 224 | }; |
225 | ||
226 | AliMpPad pad[2] = | |
227 | { | |
228 | segment[0]->PadByIndices(AliMpIntPair(digit.PadX(),digit.PadY()),kTRUE), | |
229 | segment[1]->PadByIndices(AliMpIntPair(correspondingDigit->PadX(),correspondingDigit->PadY()),kTRUE) | |
230 | }; | |
231 | ||
081d3361 | 232 | Int_t p0(1); |
233 | if (digit.Cathode()==0)p0=0; | |
234 | ||
235 | AliMpIntPair location = pad[p0].GetLocation(0); | |
236 | Int_t nboard = location.GetFirst(); | |
4ce497c4 | 237 | |
4ce497c4 | 238 | Bool_t isTrig[2]; |
081d3361 | 239 | |
240 | fTriggerEfficiency->IsTriggered(detElemId, nboard-1, | |
4ce497c4 | 241 | isTrig[0], isTrig[1]); |
081d3361 | 242 | |
4ce497c4 | 243 | if (!isTrig[digit.Cathode()]) |
244 | { | |
245 | digit.SetSignal(0); | |
246 | } | |
247 | ||
248 | if ( &digit != correspondingDigit ) | |
249 | { | |
250 | if (!isTrig[correspondingDigit->Cathode()]) | |
251 | { | |
252 | correspondingDigit->SetSignal(0); | |
253 | } | |
254 | } | |
255 | } | |
256 | ||
92aeef15 | 257 | //_____________________________________________________________________________ |
258 | void | |
259 | AliMUONDigitizerV3::ApplyResponse() | |
260 | { | |
9265505b | 261 | /// Loop over all chamber digits, and apply the response to them |
262 | /// Note that this method may remove digits. | |
263 | ||
4ce497c4 | 264 | const Bool_t kAddNoise = kTRUE; |
265 | ||
92aeef15 | 266 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) |
4ce497c4 | 267 | { |
92aeef15 | 268 | TClonesArray* digits = fOutputData->Digits(ich); |
269 | Int_t n = digits->GetEntriesFast(); | |
4ce497c4 | 270 | Bool_t trackingChamber = ( ich < AliMUONConstants::NTrackingCh() ); |
92aeef15 | 271 | for ( Int_t i = 0; i < n; ++i ) |
272 | { | |
273 | AliMUONDigit* d = static_cast<AliMUONDigit*>(digits->UncheckedAt(i)); | |
4ce497c4 | 274 | if ( trackingChamber ) |
275 | { | |
276 | ApplyResponseToTrackerDigit(*d,kAddNoise); | |
277 | } | |
278 | else | |
279 | { | |
280 | ApplyResponseToTriggerDigit(*d,fOutputData); | |
281 | } | |
92aeef15 | 282 | if ( d->Signal() <= 0 ) |
283 | { | |
284 | digits->RemoveAt(i); | |
285 | } | |
286 | } | |
05314992 | 287 | digits->Compress(); |
92aeef15 | 288 | } |
4ce497c4 | 289 | |
290 | // The version below, using iterator, does not yet work (as the iterator | |
291 | // assumes it is reading digits from the tree, while in this case it's | |
292 | // writing...) | |
293 | // | |
294 | // AliMUONDigit* digit(0x0); | |
295 | // | |
296 | // // First loop on tracker digits | |
297 | // AliMUONDataIterator tracker(fOutputData,"D",AliMUONDataIterator::kTrackingChambers); | |
298 | // | |
299 | // while ( ( digit = static_cast<AliMUONDigit*>(tracker.Next()) ) ) | |
300 | // { | |
301 | // ApplyResponseToTrackerDigit(*digit); | |
302 | // if ( digit->Signal() <= 0 ) | |
303 | // { | |
304 | // tracker.Remove(); | |
305 | // } | |
306 | // | |
307 | // } | |
308 | // | |
309 | // // Then loop on trigger digits | |
310 | // AliMUONDataIterator trigger(fOutputData,"D",AliMUONDataIterator::kTriggerChambers); | |
311 | // | |
312 | // while ( ( digit = static_cast<AliMUONDigit*>(trigger.Next()) ) ) | |
313 | // { | |
314 | // ApplyResponseToTriggerDigit(*digit,fOutputData); | |
315 | // if ( digit->Signal() <= 0 ) | |
316 | // { | |
317 | // trigger.Remove(); | |
318 | // } | |
319 | // } | |
92aeef15 | 320 | } |
321 | ||
322 | //_____________________________________________________________________________ | |
323 | void | |
324 | AliMUONDigitizerV3::AddOrUpdateDigit(TClonesArray& array, | |
325 | const AliMUONDigit& digit) | |
326 | { | |
9265505b | 327 | /// Add or update a digit, depending on whether there's already a digit |
328 | /// for the corresponding channel. | |
329 | ||
92aeef15 | 330 | Int_t ix = FindDigitIndex(array,digit); |
331 | ||
332 | if (ix>=0) | |
333 | { | |
334 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(ix)); | |
335 | Bool_t ok = MergeDigits(digit,*d); | |
336 | if (!ok) | |
337 | { | |
338 | AliError("Digits are not mergeable !"); | |
339 | } | |
92aeef15 | 340 | } |
341 | else | |
342 | { | |
343 | ix = array.GetLast() + 1; | |
344 | new(array[ix]) AliMUONDigit(digit); | |
345 | } | |
346 | ||
347 | } | |
348 | ||
349 | //_____________________________________________________________________________ | |
350 | void | |
351 | AliMUONDigitizerV3::Exec(Option_t*) | |
352 | { | |
9265505b | 353 | /// Main method. |
354 | /// We first loop over input files, and merge the sdigits we found there. | |
355 | /// Second, we digitize all the resulting sdigits | |
356 | /// Then we generate noise-only digits (for tracker only) | |
357 | /// And we finally generate the trigger outputs. | |
4ce497c4 | 358 | |
92aeef15 | 359 | AliDebug(1, "Running digitizer."); |
360 | ||
361 | if ( fManager->GetNinputs() == 0 ) | |
362 | { | |
363 | AliWarning("No input set. Nothing to do."); | |
364 | return; | |
365 | } | |
366 | ||
367 | if ( !fIsInitialized ) | |
368 | { | |
369 | AliError("Not initialized. Cannot perform the work. Sorry"); | |
370 | return; | |
371 | } | |
372 | ||
4ce497c4 | 373 | fExecTimer.Start(kFALSE); |
374 | ||
92aeef15 | 375 | Int_t nInputFiles = fManager->GetNinputs(); |
376 | ||
377 | if ( fOutputData->TreeD() == 0x0 ) | |
378 | { | |
379 | AliDebug(1,"Calling MakeDigitsContainer"); | |
380 | fOutputData->GetLoader()->MakeDigitsContainer(); | |
381 | } | |
382 | fOutputData->MakeBranch("D,GLT"); | |
383 | fOutputData->SetTreeAddress("D,GLT"); | |
384 | ||
385 | // Loop over all the input files, and merge the sdigits found in those | |
386 | // files. | |
387 | for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile ) | |
388 | { | |
389 | AliMUONData* inputData = GetDataAccess(fManager->GetInputFolderName(iFile)); | |
390 | if (!inputData) | |
391 | { | |
392 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
393 | } | |
05314992 | 394 | |
92aeef15 | 395 | inputData->GetLoader()->LoadSDigits("READ"); |
92aeef15 | 396 | inputData->SetTreeAddress("S"); |
397 | inputData->GetSDigits(); | |
05314992 | 398 | |
399 | MergeWithSDigits(*fOutputData,*inputData,fManager->GetMask(iFile)); | |
400 | ||
92aeef15 | 401 | inputData->ResetSDigits(); |
402 | inputData->GetLoader()->UnloadSDigits(); | |
403 | delete inputData; | |
404 | } | |
405 | ||
406 | // At this point, we do have digit arrays (one per chamber) which contains | |
407 | // the merging of all the sdigits of the input file(s). | |
408 | // We now massage them to apply the detector response, i.e. this | |
409 | // is here that we do the "digitization" work. | |
410 | ||
411 | ApplyResponse(); | |
4ce497c4 | 412 | |
413 | if ( fGenerateNoisyDigits ) | |
414 | { | |
415 | // Generate noise-only digits for tracker. | |
416 | GenerateNoisyDigits(); | |
417 | } | |
418 | ||
92aeef15 | 419 | // We generate the global and local trigger decisions. |
420 | fTriggerProcessor->ExecuteTask(); | |
421 | ||
422 | // Fill the output treeD | |
423 | fOutputData->Fill("D,GLT"); | |
424 | ||
425 | // Write to the output tree(D). | |
426 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
427 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
428 | // the 3 branches. | |
429 | fOutputData->GetLoader()->WriteDigits("OVERWRITE"); | |
430 | ||
431 | // Finally, we clean up after ourselves. | |
432 | fOutputData->ResetDigits(); | |
433 | fOutputData->ResetTrigger(); | |
434 | fOutputData->GetLoader()->UnloadDigits(); | |
4ce497c4 | 435 | |
436 | fExecTimer.Stop(); | |
92aeef15 | 437 | } |
438 | ||
4ce497c4 | 439 | //_____________________________________________________________________________ |
440 | AliMUONDigit* | |
441 | AliMUONDigitizerV3::FindCorrespondingDigit(AliMUONDigit& digit, | |
85fec35d | 442 | AliMUONData* data) const |
4ce497c4 | 443 | { |
9265505b | 444 | /// \todo add comment |
445 | ||
a0dc51a6 | 446 | AliMUONDataIterator it(data,"D",AliMUONDataIterator::kTriggerChambers); |
4ce497c4 | 447 | AliMUONDigit* cd; |
a0dc51a6 | 448 | |
449 | for(;;){ | |
450 | cd = static_cast<AliMUONDigit*>(it.Next()); | |
451 | if(!cd)continue; | |
452 | if (cd->DetElemId() == digit.DetElemId() && | |
453 | cd->PadX() == digit.PadX() && | |
454 | cd->PadY() == digit.PadY() && | |
455 | cd->Cathode() == digit.Cathode()){ | |
456 | break; | |
457 | } | |
458 | } | |
459 | //The corresponding digit is searched only forward in the AliMUONData. | |
460 | //In this way when the first digit of the couple is given, the second digit is found and the efficiency is applied to both. | |
461 | //Afterwards, when the second digit of the couple is given the first one is not found and hence efficiency is not applied again | |
4ce497c4 | 462 | |
463 | while ( ( cd = static_cast<AliMUONDigit*>(it.Next()) ) ) | |
464 | { | |
a0dc51a6 | 465 | if(!cd)continue;//avoid problems when 1 digit is removed |
4ce497c4 | 466 | if ( cd->DetElemId() == digit.DetElemId() && |
467 | cd->Hit() == digit.Hit() && | |
468 | cd->Cathode() != digit.Cathode() ) | |
469 | { | |
470 | return cd; | |
471 | } | |
472 | } | |
473 | return 0x0; | |
474 | } | |
475 | ||
476 | ||
92aeef15 | 477 | //_____________________________________________________________________________ |
478 | Int_t | |
4ce497c4 | 479 | AliMUONDigitizerV3::FindDigitIndex(TClonesArray& array, |
480 | const AliMUONDigit& digit) const | |
92aeef15 | 481 | { |
9265505b | 482 | /// Return the index of digit within array, if that digit is there, |
483 | /// otherwise returns -1 | |
484 | /// | |
485 | /// \todo FIXME: this is of course not the best implementation you can think of. | |
486 | /// Reconsider the use of hit/digit map... ? (but be sure it's needed!) | |
4ce497c4 | 487 | |
488 | fFindDigitIndexTimer.Start(kFALSE); | |
489 | ||
92aeef15 | 490 | Int_t n = array.GetEntriesFast(); |
491 | for ( Int_t i = 0; i < n; ++i ) | |
492 | { | |
493 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(i)); | |
494 | if ( d->DetElemId() == digit.DetElemId() && | |
495 | d->PadX() == digit.PadX() && | |
496 | d->PadY() == digit.PadY() && | |
497 | d->Cathode() == digit.Cathode() ) | |
498 | { | |
4ce497c4 | 499 | fFindDigitIndexTimer.Stop(); |
92aeef15 | 500 | return i; |
501 | } | |
502 | } | |
4ce497c4 | 503 | fFindDigitIndexTimer.Stop(); |
92aeef15 | 504 | return -1; |
505 | } | |
506 | ||
4ce497c4 | 507 | //_____________________________________________________________________________ |
508 | void | |
509 | AliMUONDigitizerV3::GenerateNoisyDigits() | |
510 | { | |
9265505b | 511 | /// According to a given probability, generate digits that |
512 | /// have a signal above the noise cut (ped+n*sigma_ped), i.e. digits | |
513 | /// that are "only noise". | |
4ce497c4 | 514 | |
515 | if ( !fNoiseFunction ) | |
516 | { | |
517 | fNoiseFunction = new TF1("AliMUONDigitizerV3::fNoiseFunction","gaus", | |
518 | fgkNSigmas,fgkNSigmas*10); | |
519 | ||
520 | fNoiseFunction->SetParameters(1,0,1); | |
521 | } | |
522 | ||
523 | fGenerateNoisyDigitsTimer.Start(kFALSE); | |
524 | ||
525 | for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i ) | |
526 | { | |
527 | AliMpDEIterator it; | |
528 | ||
529 | it.First(i); | |
530 | ||
531 | while ( !it.IsDone() ) | |
532 | { | |
533 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
534 | { | |
866c3232 | 535 | GenerateNoisyDigitsForOneCathode(it.CurrentDEId(),cathode); |
4ce497c4 | 536 | } |
537 | it.Next(); | |
538 | } | |
539 | } | |
540 | ||
541 | fGenerateNoisyDigitsTimer.Stop(); | |
542 | } | |
543 | ||
544 | //_____________________________________________________________________________ | |
545 | void | |
546 | AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(Int_t detElemId, Int_t cathode) | |
547 | { | |
9265505b | 548 | /// Generate noise-only digits for one cathode of one detection element. |
549 | /// Called by GenerateNoisyDigits() | |
4ce497c4 | 550 | |
66f4c572 | 551 | Int_t chamberId = AliMpDEManager::GetChamberId(detElemId); |
552 | TClonesArray* digits = fOutputData->Digits(chamberId); | |
4ce497c4 | 553 | |
9265505b | 554 | const AliMpVSegmentation* seg |
866c3232 | 555 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode)); |
4ce497c4 | 556 | Int_t nofPads = seg->NofPads(); |
557 | ||
558 | Int_t maxIx = seg->MaxPadIndexX(); | |
559 | Int_t maxIy = seg->MaxPadIndexY(); | |
560 | ||
cdea095e | 561 | static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgkNSigmas/TMath::Sqrt(2.0)) / 2. ; |
4ce497c4 | 562 | |
84aac932 | 563 | Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads); |
4ce497c4 | 564 | if ( !nofNoisyPads ) return; |
565 | ||
566 | nofNoisyPads = | |
567 | TMath::Nint(gRandom->Gaus(nofNoisyPads, | |
568 | nofNoisyPads/TMath::Sqrt(nofNoisyPads))); | |
569 | ||
570 | AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads)); | |
571 | ||
572 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) | |
573 | { | |
574 | Int_t ix(-1); | |
575 | Int_t iy(-1); | |
576 | do { | |
577 | ix = gRandom->Integer(maxIx+1); | |
578 | iy = gRandom->Integer(maxIy+1); | |
579 | } while ( !seg->HasPad(AliMpIntPair(ix,iy)) ); | |
580 | AliMUONDigit d; | |
581 | d.SetDetElemId(detElemId); | |
582 | d.SetCathode(cathode); | |
583 | d.SetPadX(ix); | |
584 | d.SetPadY(iy); | |
585 | if ( FindDigitIndex(*digits,d) >= 0 ) | |
586 | { | |
587 | // this digit is already there, and not noise-only, we simply skip it | |
588 | continue; | |
589 | } | |
590 | AliMpPad pad = seg->PadByIndices(AliMpIntPair(ix,iy)); | |
591 | Int_t manuId = pad.GetLocation().GetFirst(); | |
592 | Int_t manuChannel = pad.GetLocation().GetSecond(); | |
593 | ||
594 | d.SetElectronics(manuId,manuChannel); | |
595 | ||
596 | AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId); | |
597 | ||
598 | Float_t pedestalMean = pedestals->ValueAsFloat(manuChannel,0); | |
599 | Float_t pedestalSigma = pedestals->ValueAsFloat(manuChannel,1); | |
600 | ||
601 | Double_t ped = fNoiseFunction->GetRandom()*pedestalSigma; | |
59b91539 | 602 | |
4ce497c4 | 603 | d.SetSignal(TMath::Nint(ped+pedestalMean+0.5)); |
59b91539 | 604 | d.SetPhysicsSignal(0); |
4ce497c4 | 605 | d.NoiseOnly(kTRUE); |
606 | AliDebug(3,Form("Adding a pure noise digit :")); | |
607 | StdoutToAliDebug(3,cout << "Before Response: " << endl; | |
608 | d.Print();); | |
609 | ApplyResponseToTrackerDigit(d,kFALSE); | |
610 | if ( d.Signal() > 0 ) | |
611 | { | |
612 | AddOrUpdateDigit(*digits,d); | |
613 | } | |
614 | else | |
615 | { | |
616 | AliError("Pure noise below threshold. This should not happen. Not adding " | |
617 | "this digit."); | |
618 | } | |
619 | StdoutToAliDebug(3,cout << "After Response: " << endl; | |
620 | d.Print();); | |
621 | } | |
622 | } | |
623 | ||
92aeef15 | 624 | //_____________________________________________________________________________ |
625 | AliMUONData* | |
626 | AliMUONDigitizerV3::GetDataAccess(const TString& folderName) | |
627 | { | |
9265505b | 628 | /// Create an AliMUONData to deal with data found in folderName. |
629 | ||
92aeef15 | 630 | AliDebug(1,Form("Getting access to folder %s",folderName.Data())); |
631 | AliRunLoader* runLoader = AliRunLoader::GetRunLoader(folderName); | |
632 | if (!runLoader) | |
633 | { | |
634 | AliError(Form("Could not get RunLoader from folder %s",folderName.Data())); | |
635 | return 0x0; | |
636 | } | |
637 | AliLoader* loader = static_cast<AliLoader*>(runLoader->GetLoader("MUONLoader")); | |
638 | if (!loader) | |
639 | { | |
640 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
641 | return 0x0; | |
642 | } | |
643 | AliMUONData* data = new AliMUONData(loader,"MUON","MUONDataForDigitOutput"); | |
644 | AliDebug(1,Form("AliMUONData=%p loader=%p",data,loader)); | |
645 | return data; | |
646 | } | |
647 | ||
648 | //_____________________________________________________________________________ | |
649 | Bool_t | |
650 | AliMUONDigitizerV3::Init() | |
651 | { | |
9265505b | 652 | /// Initialization of the TTask : |
653 | /// a) set the outputData pointer | |
654 | /// b) create the calibrationData, according to run number | |
655 | /// c) create the trigger processing task | |
656 | ||
92aeef15 | 657 | AliDebug(1,""); |
658 | ||
659 | if ( fIsInitialized ) | |
660 | { | |
661 | AliError("Object already initialized."); | |
662 | return kFALSE; | |
663 | } | |
664 | ||
665 | if (!fManager) | |
666 | { | |
667 | AliError("fManager is null !"); | |
668 | return kFALSE; | |
669 | } | |
670 | ||
671 | fOutputData = GetDataAccess(fManager->GetOutputFolderName()); | |
672 | if (!fOutputData) | |
673 | { | |
674 | AliError("Can not perform digitization. I'm sorry"); | |
675 | return kFALSE; | |
676 | } | |
677 | AliDebug(1,Form("fOutputData=%p",fOutputData)); | |
678 | ||
679 | AliRunLoader* runLoader = fOutputData->GetLoader()->GetRunLoader(); | |
680 | AliRun* galice = runLoader->GetAliRun(); | |
681 | Int_t runnumber = galice->GetRunNumber(); | |
682 | ||
683 | fCalibrationData = new AliMUONCalibrationData(runnumber); | |
684 | ||
eb5d708c | 685 | fTriggerProcessor = new AliMUONTriggerElectronics(fOutputData,fCalibrationData); |
4ce497c4 | 686 | |
afb3ccf0 | 687 | if ( muon()->GetTriggerEffCells() ) |
4ce497c4 | 688 | { |
689 | fTriggerEfficiency = fCalibrationData->TriggerEfficiency(); | |
690 | if ( fTriggerEfficiency ) | |
691 | { | |
a7b01aa5 | 692 | AliDebug(1, "Will apply trigger efficiency"); |
4ce497c4 | 693 | } |
694 | else | |
695 | { | |
696 | AliError("I was requested to apply trigger efficiency, but I could " | |
697 | "not get it !"); | |
698 | } | |
699 | } | |
700 | ||
701 | if ( fGenerateNoisyDigits ) | |
702 | { | |
a7b01aa5 | 703 | AliDebug(1, "Will generate noise-only digits for tracker"); |
4ce497c4 | 704 | } |
705 | ||
92aeef15 | 706 | fIsInitialized = kTRUE; |
707 | return kTRUE; | |
708 | } | |
709 | ||
710 | //_____________________________________________________________________________ | |
711 | Bool_t | |
05314992 | 712 | AliMUONDigitizerV3::MergeDigits(const AliMUONDigit& src, |
713 | AliMUONDigit& srcAndDest) | |
92aeef15 | 714 | { |
9265505b | 715 | /// Merge 2 digits (src and srcAndDest) into srcAndDest. |
716 | ||
92aeef15 | 717 | AliDebug(1,"Merging the following digits:"); |
05314992 | 718 | StdoutToAliDebug(1,src.Print("tracks");); |
719 | StdoutToAliDebug(1,srcAndDest.Print("tracks");); | |
92aeef15 | 720 | |
721 | Bool_t check = ( src.DetElemId() == srcAndDest.DetElemId() && | |
722 | src.PadX() == srcAndDest.PadX() && | |
723 | src.PadY() == srcAndDest.PadY() && | |
724 | src.Cathode() == srcAndDest.Cathode() ); | |
725 | if (!check) | |
726 | { | |
727 | return kFALSE; | |
728 | } | |
729 | ||
92aeef15 | 730 | srcAndDest.AddSignal(src.Signal()); |
731 | srcAndDest.AddPhysicsSignal(src.Physics()); | |
05314992 | 732 | for ( Int_t i = 0; i < src.Ntracks(); ++i ) |
733 | { | |
734 | srcAndDest.AddTrack(src.Track(i),src.TrackCharge(i)); | |
735 | } | |
736 | StdoutToAliDebug(1,cout << "result:"; srcAndDest.Print("tracks");); | |
92aeef15 | 737 | return kTRUE; |
738 | } | |
739 | ||
740 | //_____________________________________________________________________________ | |
741 | void | |
742 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONData& outputData, | |
05314992 | 743 | const AliMUONData& inputData, Int_t mask) |
92aeef15 | 744 | { |
9265505b | 745 | /// Merge the sdigits in inputData with the digits already present in outputData |
746 | ||
92aeef15 | 747 | AliDebug(1,""); |
748 | ||
749 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) | |
750 | { | |
751 | TClonesArray* iDigits = inputData.SDigits(ich); | |
752 | TClonesArray* oDigits = outputData.Digits(ich); | |
753 | if (!iDigits) | |
754 | { | |
755 | AliError(Form("Could not get sdigits for ich=%d",ich)); | |
756 | return; | |
757 | } | |
758 | Int_t nSDigits = iDigits->GetEntriesFast(); | |
759 | for ( Int_t k = 0; k < nSDigits; ++k ) | |
760 | { | |
761 | AliMUONDigit* sdigit = static_cast<AliMUONDigit*>(iDigits->UncheckedAt(k)); | |
92aeef15 | 762 | if (!sdigit) |
763 | { | |
764 | AliError(Form("Could not get sdigit for ich=%d and k=%d",ich,k)); | |
765 | } | |
766 | else | |
767 | { | |
05314992 | 768 | // Update the track references using the mask. |
769 | // FIXME: this is dirty, for backward compatibility only. | |
770 | // Should re-design all this way of keeping track of MC information... | |
771 | if ( mask ) sdigit->PatchTracks(mask); | |
772 | // Then add or update the digit to the output. | |
92aeef15 | 773 | AddOrUpdateDigit(*oDigits,*sdigit); |
774 | } | |
9265505b | 775 | } |
92aeef15 | 776 | } |
777 | } |