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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 | ||
18 | #include "AliMUONDigitizerV3.h" | |
19 | ||
20 | #include "AliLog.h" | |
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" |
92aeef15 | 28 | #include "AliMUONTriggerDecisionV1.h" |
4ce497c4 | 29 | #include "AliMUONTriggerEfficiencyCells.h" |
4f8a3d8b | 30 | #include "AliMUONTriggerElectronics.h" |
05314992 | 31 | #include "AliMUONVCalibParam.h" |
4ce497c4 | 32 | #include "AliMpDEIterator.h" |
92aeef15 | 33 | #include "AliMpDEManager.h" |
4ce497c4 | 34 | #include "AliMpIntPair.h" |
35 | #include "AliMpPad.h" | |
92aeef15 | 36 | #include "AliMpStationType.h" |
4ce497c4 | 37 | #include "AliMpVSegmentation.h" |
92aeef15 | 38 | #include "AliRun.h" |
39 | #include "AliRunDigitizer.h" | |
40 | #include "AliRunLoader.h" | |
41 | #include "Riostream.h" | |
4ce497c4 | 42 | #include "TF1.h" |
92aeef15 | 43 | #include "TRandom.h" |
44 | #include "TString.h" | |
45 | ||
4ce497c4 | 46 | /// |
47 | /// The digitizer is performing the transformation to go from SDigits (digits | |
48 | /// w/o any electronic noise) to Digits (w/ electronic noise, and decalibration) | |
49 | /// | |
50 | /// The decalibration is performed by doing the reverse operation of the | |
51 | /// calibration, that is we do (Signal+pedestal)/gain -> ADC | |
52 | /// | |
53 | /// Note also that the digitizer takes care of merging sdigits that belongs | |
54 | /// to the same pad, either because we're merging several input sdigit files | |
55 | /// or with a single file because the sdigitizer does not merge sdigits itself | |
56 | /// (for performance reason mainly, and because anyway we know we have to do it | |
57 | /// here, at the digitization level). | |
58 | /// | |
59 | ||
60 | namespace | |
61 | { | |
62 | AliMUON* muon() | |
63 | { | |
64 | return static_cast<AliMUON*>(gAlice->GetModule("MUON")); | |
65 | } | |
66 | ||
67 | AliMUONSegmentation* Segmentation() | |
68 | { | |
69 | static AliMUONSegmentation* segmentation = muon()->GetSegmentation(); | |
70 | return segmentation; | |
71 | } | |
72 | } | |
73 | ||
74 | const Double_t AliMUONDigitizerV3::fgkNSigmas=3; | |
75 | ||
92aeef15 | 76 | ClassImp(AliMUONDigitizerV3) |
77 | ||
78 | //_____________________________________________________________________________ | |
79 | AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager, | |
4ce497c4 | 80 | ETriggerCodeVersion triggerCodeVersion, |
4ce497c4 | 81 | Bool_t generateNoisyDigits) |
92aeef15 | 82 | : AliDigitizer(manager), |
92aeef15 | 83 | fIsInitialized(kFALSE), |
84 | fOutputData(0x0), | |
85 | fCalibrationData(0x0), | |
86 | fTriggerProcessor(0x0), | |
4ce497c4 | 87 | fTriggerCodeVersion(triggerCodeVersion), |
4ce497c4 | 88 | fTriggerEfficiency(0x0), |
ccea41d4 | 89 | fFindDigitIndexTimer(), |
90 | fGenerateNoisyDigitsTimer(), | |
91 | fExecTimer(), | |
4ce497c4 | 92 | fNoiseFunction(0x0), |
93 | fGenerateNoisyDigits(generateNoisyDigits) | |
92aeef15 | 94 | { |
05314992 | 95 | // |
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 | { | |
05314992 | 107 | // |
108 | // Dtor. Note we're the owner of some pointers. | |
109 | // | |
92aeef15 | 110 | AliDebug(1,"dtor"); |
4ce497c4 | 111 | |
92aeef15 | 112 | delete fOutputData; |
113 | delete fCalibrationData; | |
114 | delete fTriggerProcessor; | |
4ce497c4 | 115 | delete fNoiseFunction; |
116 | ||
117 | AliInfo(Form("Execution time for FindDigitIndex() : R:%.2fs C:%.2fs", | |
118 | fFindDigitIndexTimer.RealTime(),fFindDigitIndexTimer.CpuTime())); | |
119 | if ( fGenerateNoisyDigits ) | |
120 | { | |
121 | AliInfo(Form("Execution time for GenerateNoisyDigits() : R:%.2fs C:%.2fs", | |
122 | fGenerateNoisyDigitsTimer.RealTime(), | |
123 | fGenerateNoisyDigitsTimer.CpuTime())); | |
124 | } | |
125 | AliInfo(Form("Execution time for Exec() : R:%.2fs C:%.2fs", | |
126 | fExecTimer.RealTime(),fExecTimer.CpuTime())); | |
127 | ||
92aeef15 | 128 | } |
129 | ||
130 | //_____________________________________________________________________________ | |
131 | void | |
4ce497c4 | 132 | AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONDigit& digit, Bool_t addNoise) |
92aeef15 | 133 | { |
92aeef15 | 134 | // For tracking digits, starting from an ideal digit's charge, we : |
135 | // | |
4ce497c4 | 136 | // - add some noise (thus leading to a realistic charge), if requested to do so |
92aeef15 | 137 | // - divide by a gain (thus decalibrating the digit) |
138 | // - add a pedestal (thus decalibrating the digit) | |
05314992 | 139 | // - sets the signal to zero if below 3*sigma of the noise |
92aeef15 | 140 | // |
59b91539 | 141 | |
4ce497c4 | 142 | static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC. |
59b91539 | 143 | |
4ce497c4 | 144 | Float_t signal = digit.Signal(); |
59b91539 | 145 | |
146 | if ( !addNoise ) | |
147 | { | |
148 | digit.SetADC(TMath::Nint(signal)); | |
149 | return; | |
150 | } | |
92aeef15 | 151 | |
4ce497c4 | 152 | Int_t detElemId = digit.DetElemId(); |
92aeef15 | 153 | |
154 | Int_t manuId = digit.ManuId(); | |
155 | Int_t manuChannel = digit.ManuChannel(); | |
156 | ||
4ce497c4 | 157 | AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId); |
92aeef15 | 158 | if (!pedestal) |
59b91539 | 159 | { |
160 | AliFatal(Form("Could not get pedestal for DE=%d manuId=%d", | |
161 | detElemId,manuId)); | |
162 | } | |
05314992 | 163 | Float_t pedestalMean = pedestal->ValueAsFloat(manuChannel,0); |
164 | Float_t pedestalSigma = pedestal->ValueAsFloat(manuChannel,1); | |
59b91539 | 165 | |
4ce497c4 | 166 | AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId); |
92aeef15 | 167 | if (!gain) |
59b91539 | 168 | { |
169 | AliFatal(Form("Could not get gain for DE=%d manuId=%d", | |
170 | detElemId,manuId)); | |
171 | } | |
05314992 | 172 | Float_t gainMean = gain->ValueAsFloat(manuChannel,0); |
4ce497c4 | 173 | |
59b91539 | 174 | Float_t adcNoise = gRandom->Gaus(0.0,pedestalSigma); |
175 | ||
92aeef15 | 176 | Int_t adc; |
59b91539 | 177 | |
05314992 | 178 | if ( gainMean < 1E-6 ) |
92aeef15 | 179 | { |
59b91539 | 180 | AliError(Form("Got a too small gain %e for DE=%d manuId=%d manuChannel=%d. " |
181 | "Setting signal to 0.", | |
182 | gainMean,detElemId,manuId,manuChannel)); | |
92aeef15 | 183 | adc = 0; |
184 | } | |
59b91539 | 185 | else |
186 | { | |
187 | adc = TMath::Nint( signal / gainMean + pedestalMean + adcNoise);/// | |
188 | ||
189 | if ( adc <= pedestalMean + fgkNSigmas*pedestalSigma ) | |
190 | { | |
191 | adc = 0; | |
192 | } | |
193 | } | |
194 | ||
05314992 | 195 | // be sure we stick to 12 bits. |
4ce497c4 | 196 | if ( adc > kMaxADC ) |
59b91539 | 197 | { |
198 | adc = kMaxADC; | |
199 | } | |
200 | ||
92aeef15 | 201 | digit.SetPhysicsSignal(TMath::Nint(signal)); |
202 | digit.SetSignal(adc); | |
203 | digit.SetADC(adc); | |
204 | } | |
205 | ||
4ce497c4 | 206 | //_____________________________________________________________________________ |
207 | void | |
208 | AliMUONDigitizerV3::ApplyResponseToTriggerDigit(AliMUONDigit& digit, | |
209 | AliMUONData* data) | |
210 | { | |
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(); |
218 | ||
219 | const AliMpVSegmentation* segment[2] = | |
220 | { | |
221 | Segmentation()->GetMpSegmentation(detElemId,digit.Cathode()), | |
222 | Segmentation()->GetMpSegmentation(detElemId,correspondingDigit->Cathode()) | |
223 | }; | |
224 | ||
225 | AliMpPad pad[2] = | |
226 | { | |
227 | segment[0]->PadByIndices(AliMpIntPair(digit.PadX(),digit.PadY()),kTRUE), | |
228 | segment[1]->PadByIndices(AliMpIntPair(correspondingDigit->PadX(),correspondingDigit->PadY()),kTRUE) | |
229 | }; | |
230 | ||
231 | Int_t ix(0); | |
232 | Int_t iy(1); | |
233 | ||
234 | if (digit.Cathode()==0) | |
235 | { | |
236 | ix=1; | |
237 | iy=0; | |
238 | } | |
239 | ||
240 | Float_t x = pad[ix].Position().X(); | |
241 | Float_t y = pad[iy].Position().Y(); | |
242 | if ( x==-1 && y==-1 ) | |
243 | { | |
244 | x=-9999.; | |
245 | y=-9999.; | |
246 | AliError(Form("Got an unknown position for a digit in DE %d at (ix,iy)=(%d,%d)", | |
247 | detElemId,pad[ix].GetIndices().GetFirst(),pad[iy].GetIndices().GetSecond())); | |
248 | } | |
249 | Float_t x0 = segment[0]->Dimensions().X(); | |
250 | Float_t y0 = segment[1]->Dimensions().Y(); | |
251 | TVector2 newCoord = fTriggerEfficiency->ChangeReferenceFrame(x, y, x0, y0); | |
252 | ||
253 | Bool_t isTrig[2]; | |
254 | fTriggerEfficiency->IsTriggered(detElemId, newCoord.Px(), newCoord.Py(), | |
255 | isTrig[0], isTrig[1]); | |
256 | ||
257 | if (!isTrig[digit.Cathode()]) | |
258 | { | |
259 | digit.SetSignal(0); | |
260 | } | |
261 | ||
262 | if ( &digit != correspondingDigit ) | |
263 | { | |
264 | if (!isTrig[correspondingDigit->Cathode()]) | |
265 | { | |
266 | correspondingDigit->SetSignal(0); | |
267 | } | |
268 | } | |
269 | } | |
270 | ||
92aeef15 | 271 | //_____________________________________________________________________________ |
272 | void | |
273 | AliMUONDigitizerV3::ApplyResponse() | |
274 | { | |
05314992 | 275 | // |
276 | // Loop over all chamber digits, and apply the response to them | |
277 | // Note that this method may remove digits. | |
278 | // | |
4ce497c4 | 279 | const Bool_t kAddNoise = kTRUE; |
280 | ||
92aeef15 | 281 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) |
4ce497c4 | 282 | { |
92aeef15 | 283 | TClonesArray* digits = fOutputData->Digits(ich); |
284 | Int_t n = digits->GetEntriesFast(); | |
4ce497c4 | 285 | Bool_t trackingChamber = ( ich < AliMUONConstants::NTrackingCh() ); |
92aeef15 | 286 | for ( Int_t i = 0; i < n; ++i ) |
287 | { | |
288 | AliMUONDigit* d = static_cast<AliMUONDigit*>(digits->UncheckedAt(i)); | |
4ce497c4 | 289 | if ( trackingChamber ) |
290 | { | |
291 | ApplyResponseToTrackerDigit(*d,kAddNoise); | |
292 | } | |
293 | else | |
294 | { | |
295 | ApplyResponseToTriggerDigit(*d,fOutputData); | |
296 | } | |
92aeef15 | 297 | if ( d->Signal() <= 0 ) |
298 | { | |
299 | digits->RemoveAt(i); | |
300 | } | |
301 | } | |
05314992 | 302 | digits->Compress(); |
92aeef15 | 303 | } |
4ce497c4 | 304 | |
305 | // The version below, using iterator, does not yet work (as the iterator | |
306 | // assumes it is reading digits from the tree, while in this case it's | |
307 | // writing...) | |
308 | // | |
309 | // AliMUONDigit* digit(0x0); | |
310 | // | |
311 | // // First loop on tracker digits | |
312 | // AliMUONDataIterator tracker(fOutputData,"D",AliMUONDataIterator::kTrackingChambers); | |
313 | // | |
314 | // while ( ( digit = static_cast<AliMUONDigit*>(tracker.Next()) ) ) | |
315 | // { | |
316 | // ApplyResponseToTrackerDigit(*digit); | |
317 | // if ( digit->Signal() <= 0 ) | |
318 | // { | |
319 | // tracker.Remove(); | |
320 | // } | |
321 | // | |
322 | // } | |
323 | // | |
324 | // // Then loop on trigger digits | |
325 | // AliMUONDataIterator trigger(fOutputData,"D",AliMUONDataIterator::kTriggerChambers); | |
326 | // | |
327 | // while ( ( digit = static_cast<AliMUONDigit*>(trigger.Next()) ) ) | |
328 | // { | |
329 | // ApplyResponseToTriggerDigit(*digit,fOutputData); | |
330 | // if ( digit->Signal() <= 0 ) | |
331 | // { | |
332 | // trigger.Remove(); | |
333 | // } | |
334 | // } | |
92aeef15 | 335 | } |
336 | ||
337 | //_____________________________________________________________________________ | |
338 | void | |
339 | AliMUONDigitizerV3::AddOrUpdateDigit(TClonesArray& array, | |
340 | const AliMUONDigit& digit) | |
341 | { | |
05314992 | 342 | // |
343 | // Add or update a digit, depending on whether there's already a digit | |
344 | // for the corresponding channel. | |
345 | // | |
92aeef15 | 346 | Int_t ix = FindDigitIndex(array,digit); |
347 | ||
348 | if (ix>=0) | |
349 | { | |
350 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(ix)); | |
351 | Bool_t ok = MergeDigits(digit,*d); | |
352 | if (!ok) | |
353 | { | |
354 | AliError("Digits are not mergeable !"); | |
355 | } | |
92aeef15 | 356 | } |
357 | else | |
358 | { | |
359 | ix = array.GetLast() + 1; | |
360 | new(array[ix]) AliMUONDigit(digit); | |
361 | } | |
362 | ||
363 | } | |
364 | ||
365 | //_____________________________________________________________________________ | |
366 | void | |
367 | AliMUONDigitizerV3::Exec(Option_t*) | |
368 | { | |
05314992 | 369 | // |
370 | // Main method. | |
371 | // We first loop over input files, and merge the sdigits we found there. | |
4ce497c4 | 372 | // Second, we digitize all the resulting sdigits |
373 | // Then we generate noise-only digits (for tracker only) | |
05314992 | 374 | // And we finally generate the trigger outputs. |
375 | // | |
4ce497c4 | 376 | |
92aeef15 | 377 | AliDebug(1, "Running digitizer."); |
378 | ||
379 | if ( fManager->GetNinputs() == 0 ) | |
380 | { | |
381 | AliWarning("No input set. Nothing to do."); | |
382 | return; | |
383 | } | |
384 | ||
385 | if ( !fIsInitialized ) | |
386 | { | |
387 | AliError("Not initialized. Cannot perform the work. Sorry"); | |
388 | return; | |
389 | } | |
390 | ||
4ce497c4 | 391 | fExecTimer.Start(kFALSE); |
392 | ||
92aeef15 | 393 | Int_t nInputFiles = fManager->GetNinputs(); |
394 | ||
395 | if ( fOutputData->TreeD() == 0x0 ) | |
396 | { | |
397 | AliDebug(1,"Calling MakeDigitsContainer"); | |
398 | fOutputData->GetLoader()->MakeDigitsContainer(); | |
399 | } | |
400 | fOutputData->MakeBranch("D,GLT"); | |
401 | fOutputData->SetTreeAddress("D,GLT"); | |
402 | ||
403 | // Loop over all the input files, and merge the sdigits found in those | |
404 | // files. | |
405 | for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile ) | |
406 | { | |
407 | AliMUONData* inputData = GetDataAccess(fManager->GetInputFolderName(iFile)); | |
408 | if (!inputData) | |
409 | { | |
410 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
411 | } | |
05314992 | 412 | |
92aeef15 | 413 | inputData->GetLoader()->LoadSDigits("READ"); |
92aeef15 | 414 | inputData->SetTreeAddress("S"); |
415 | inputData->GetSDigits(); | |
05314992 | 416 | |
417 | MergeWithSDigits(*fOutputData,*inputData,fManager->GetMask(iFile)); | |
418 | ||
92aeef15 | 419 | inputData->ResetSDigits(); |
420 | inputData->GetLoader()->UnloadSDigits(); | |
421 | delete inputData; | |
422 | } | |
423 | ||
424 | // At this point, we do have digit arrays (one per chamber) which contains | |
425 | // the merging of all the sdigits of the input file(s). | |
426 | // We now massage them to apply the detector response, i.e. this | |
427 | // is here that we do the "digitization" work. | |
428 | ||
429 | ApplyResponse(); | |
4ce497c4 | 430 | |
431 | if ( fGenerateNoisyDigits ) | |
432 | { | |
433 | // Generate noise-only digits for tracker. | |
434 | GenerateNoisyDigits(); | |
435 | } | |
436 | ||
92aeef15 | 437 | // We generate the global and local trigger decisions. |
438 | fTriggerProcessor->ExecuteTask(); | |
439 | ||
440 | // Fill the output treeD | |
441 | fOutputData->Fill("D,GLT"); | |
442 | ||
443 | // Write to the output tree(D). | |
444 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
445 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
446 | // the 3 branches. | |
447 | fOutputData->GetLoader()->WriteDigits("OVERWRITE"); | |
448 | ||
449 | // Finally, we clean up after ourselves. | |
450 | fOutputData->ResetDigits(); | |
451 | fOutputData->ResetTrigger(); | |
452 | fOutputData->GetLoader()->UnloadDigits(); | |
4ce497c4 | 453 | |
454 | fExecTimer.Stop(); | |
92aeef15 | 455 | } |
456 | ||
4ce497c4 | 457 | //_____________________________________________________________________________ |
458 | AliMUONDigit* | |
459 | AliMUONDigitizerV3::FindCorrespondingDigit(AliMUONDigit& digit, | |
85fec35d | 460 | AliMUONData* data) const |
4ce497c4 | 461 | { |
a0dc51a6 | 462 | AliMUONDataIterator it(data,"D",AliMUONDataIterator::kTriggerChambers); |
4ce497c4 | 463 | AliMUONDigit* cd; |
a0dc51a6 | 464 | |
465 | for(;;){ | |
466 | cd = static_cast<AliMUONDigit*>(it.Next()); | |
467 | if(!cd)continue; | |
468 | if (cd->DetElemId() == digit.DetElemId() && | |
469 | cd->PadX() == digit.PadX() && | |
470 | cd->PadY() == digit.PadY() && | |
471 | cd->Cathode() == digit.Cathode()){ | |
472 | break; | |
473 | } | |
474 | } | |
475 | //The corresponding digit is searched only forward in the AliMUONData. | |
476 | //In this way when the first digit of the couple is given, the second digit is found and the efficiency is applied to both. | |
477 | //Afterwards, when the second digit of the couple is given the first one is not found and hence efficiency is not applied again | |
4ce497c4 | 478 | |
479 | while ( ( cd = static_cast<AliMUONDigit*>(it.Next()) ) ) | |
480 | { | |
a0dc51a6 | 481 | if(!cd)continue;//avoid problems when 1 digit is removed |
4ce497c4 | 482 | if ( cd->DetElemId() == digit.DetElemId() && |
483 | cd->Hit() == digit.Hit() && | |
484 | cd->Cathode() != digit.Cathode() ) | |
485 | { | |
486 | return cd; | |
487 | } | |
488 | } | |
489 | return 0x0; | |
490 | } | |
491 | ||
492 | ||
92aeef15 | 493 | //_____________________________________________________________________________ |
494 | Int_t | |
4ce497c4 | 495 | AliMUONDigitizerV3::FindDigitIndex(TClonesArray& array, |
496 | const AliMUONDigit& digit) const | |
92aeef15 | 497 | { |
05314992 | 498 | // |
499 | // Return the index of digit within array, if that digit is there, | |
500 | // otherwise returns -1 | |
501 | // | |
92aeef15 | 502 | // FIXME: this is of course not the best implementation you can think of. |
05314992 | 503 | // Reconsider the use of hit/digit map... ? (but be sure it's needed!) |
504 | // | |
4ce497c4 | 505 | |
506 | fFindDigitIndexTimer.Start(kFALSE); | |
507 | ||
92aeef15 | 508 | Int_t n = array.GetEntriesFast(); |
509 | for ( Int_t i = 0; i < n; ++i ) | |
510 | { | |
511 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(i)); | |
512 | if ( d->DetElemId() == digit.DetElemId() && | |
513 | d->PadX() == digit.PadX() && | |
514 | d->PadY() == digit.PadY() && | |
515 | d->Cathode() == digit.Cathode() ) | |
516 | { | |
4ce497c4 | 517 | fFindDigitIndexTimer.Stop(); |
92aeef15 | 518 | return i; |
519 | } | |
520 | } | |
4ce497c4 | 521 | fFindDigitIndexTimer.Stop(); |
92aeef15 | 522 | return -1; |
523 | } | |
524 | ||
4ce497c4 | 525 | //_____________________________________________________________________________ |
526 | void | |
527 | AliMUONDigitizerV3::GenerateNoisyDigits() | |
528 | { | |
529 | // | |
530 | // According to a given probability, generate digits that | |
531 | // have a signal above the noise cut (ped+n*sigma_ped), i.e. digits | |
532 | // that are "only noise". | |
533 | // | |
534 | ||
535 | if ( !fNoiseFunction ) | |
536 | { | |
537 | fNoiseFunction = new TF1("AliMUONDigitizerV3::fNoiseFunction","gaus", | |
538 | fgkNSigmas,fgkNSigmas*10); | |
539 | ||
540 | fNoiseFunction->SetParameters(1,0,1); | |
541 | } | |
542 | ||
543 | fGenerateNoisyDigitsTimer.Start(kFALSE); | |
544 | ||
545 | for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i ) | |
546 | { | |
547 | AliMpDEIterator it; | |
548 | ||
549 | it.First(i); | |
550 | ||
551 | while ( !it.IsDone() ) | |
552 | { | |
553 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
554 | { | |
555 | GenerateNoisyDigitsForOneCathode(it.CurrentDE(),cathode); | |
556 | } | |
557 | it.Next(); | |
558 | } | |
559 | } | |
560 | ||
561 | fGenerateNoisyDigitsTimer.Stop(); | |
562 | } | |
563 | ||
564 | //_____________________________________________________________________________ | |
565 | void | |
566 | AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(Int_t detElemId, Int_t cathode) | |
567 | { | |
568 | // | |
569 | // Generate noise-only digits for one cathode of one detection element. | |
570 | // Called by GenerateNoisyDigits() | |
571 | // | |
572 | ||
573 | TClonesArray* digits = fOutputData->Digits(detElemId/100-1); | |
574 | ||
575 | const AliMpVSegmentation* seg = Segmentation()->GetMpSegmentation(detElemId,cathode); | |
576 | Int_t nofPads = seg->NofPads(); | |
577 | ||
578 | Int_t maxIx = seg->MaxPadIndexX(); | |
579 | Int_t maxIy = seg->MaxPadIndexY(); | |
580 | ||
cdea095e | 581 | static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgkNSigmas/TMath::Sqrt(2.0)) / 2. ; |
4ce497c4 | 582 | |
84aac932 | 583 | Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads); |
4ce497c4 | 584 | if ( !nofNoisyPads ) return; |
585 | ||
586 | nofNoisyPads = | |
587 | TMath::Nint(gRandom->Gaus(nofNoisyPads, | |
588 | nofNoisyPads/TMath::Sqrt(nofNoisyPads))); | |
589 | ||
590 | AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads)); | |
591 | ||
592 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) | |
593 | { | |
594 | Int_t ix(-1); | |
595 | Int_t iy(-1); | |
596 | do { | |
597 | ix = gRandom->Integer(maxIx+1); | |
598 | iy = gRandom->Integer(maxIy+1); | |
599 | } while ( !seg->HasPad(AliMpIntPair(ix,iy)) ); | |
600 | AliMUONDigit d; | |
601 | d.SetDetElemId(detElemId); | |
602 | d.SetCathode(cathode); | |
603 | d.SetPadX(ix); | |
604 | d.SetPadY(iy); | |
605 | if ( FindDigitIndex(*digits,d) >= 0 ) | |
606 | { | |
607 | // this digit is already there, and not noise-only, we simply skip it | |
608 | continue; | |
609 | } | |
610 | AliMpPad pad = seg->PadByIndices(AliMpIntPair(ix,iy)); | |
611 | Int_t manuId = pad.GetLocation().GetFirst(); | |
612 | Int_t manuChannel = pad.GetLocation().GetSecond(); | |
613 | ||
614 | d.SetElectronics(manuId,manuChannel); | |
615 | ||
616 | AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId); | |
617 | ||
618 | Float_t pedestalMean = pedestals->ValueAsFloat(manuChannel,0); | |
619 | Float_t pedestalSigma = pedestals->ValueAsFloat(manuChannel,1); | |
620 | ||
621 | Double_t ped = fNoiseFunction->GetRandom()*pedestalSigma; | |
59b91539 | 622 | |
4ce497c4 | 623 | d.SetSignal(TMath::Nint(ped+pedestalMean+0.5)); |
59b91539 | 624 | d.SetPhysicsSignal(0); |
4ce497c4 | 625 | d.NoiseOnly(kTRUE); |
626 | AliDebug(3,Form("Adding a pure noise digit :")); | |
627 | StdoutToAliDebug(3,cout << "Before Response: " << endl; | |
628 | d.Print();); | |
629 | ApplyResponseToTrackerDigit(d,kFALSE); | |
630 | if ( d.Signal() > 0 ) | |
631 | { | |
632 | AddOrUpdateDigit(*digits,d); | |
633 | } | |
634 | else | |
635 | { | |
636 | AliError("Pure noise below threshold. This should not happen. Not adding " | |
637 | "this digit."); | |
638 | } | |
639 | StdoutToAliDebug(3,cout << "After Response: " << endl; | |
640 | d.Print();); | |
641 | } | |
642 | } | |
643 | ||
92aeef15 | 644 | //_____________________________________________________________________________ |
645 | AliMUONData* | |
646 | AliMUONDigitizerV3::GetDataAccess(const TString& folderName) | |
647 | { | |
05314992 | 648 | // |
649 | // Create an AliMUONData to deal with data found in folderName. | |
650 | // | |
92aeef15 | 651 | AliDebug(1,Form("Getting access to folder %s",folderName.Data())); |
652 | AliRunLoader* runLoader = AliRunLoader::GetRunLoader(folderName); | |
653 | if (!runLoader) | |
654 | { | |
655 | AliError(Form("Could not get RunLoader from folder %s",folderName.Data())); | |
656 | return 0x0; | |
657 | } | |
658 | AliLoader* loader = static_cast<AliLoader*>(runLoader->GetLoader("MUONLoader")); | |
659 | if (!loader) | |
660 | { | |
661 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
662 | return 0x0; | |
663 | } | |
664 | AliMUONData* data = new AliMUONData(loader,"MUON","MUONDataForDigitOutput"); | |
665 | AliDebug(1,Form("AliMUONData=%p loader=%p",data,loader)); | |
666 | return data; | |
667 | } | |
668 | ||
669 | //_____________________________________________________________________________ | |
670 | Bool_t | |
671 | AliMUONDigitizerV3::Init() | |
672 | { | |
05314992 | 673 | // |
674 | // Initialization of the TTask : | |
675 | // a) set the outputData pointer | |
676 | // b) create the calibrationData, according to run number | |
677 | // c) create the trigger processing task | |
678 | // | |
92aeef15 | 679 | AliDebug(1,""); |
680 | ||
681 | if ( fIsInitialized ) | |
682 | { | |
683 | AliError("Object already initialized."); | |
684 | return kFALSE; | |
685 | } | |
686 | ||
687 | if (!fManager) | |
688 | { | |
689 | AliError("fManager is null !"); | |
690 | return kFALSE; | |
691 | } | |
692 | ||
693 | fOutputData = GetDataAccess(fManager->GetOutputFolderName()); | |
694 | if (!fOutputData) | |
695 | { | |
696 | AliError("Can not perform digitization. I'm sorry"); | |
697 | return kFALSE; | |
698 | } | |
699 | AliDebug(1,Form("fOutputData=%p",fOutputData)); | |
700 | ||
701 | AliRunLoader* runLoader = fOutputData->GetLoader()->GetRunLoader(); | |
702 | AliRun* galice = runLoader->GetAliRun(); | |
703 | Int_t runnumber = galice->GetRunNumber(); | |
704 | ||
705 | fCalibrationData = new AliMUONCalibrationData(runnumber); | |
706 | ||
707 | switch (fTriggerCodeVersion) | |
708 | { | |
709 | case kTriggerDecision: | |
710 | fTriggerProcessor = new AliMUONTriggerDecisionV1(fOutputData); | |
711 | break; | |
712 | case kTriggerElectronics: | |
4ce497c4 | 713 | fTriggerProcessor = new AliMUONTriggerElectronics(fOutputData,fCalibrationData); |
92aeef15 | 714 | break; |
715 | default: | |
716 | AliFatal("Unknown trigger processor type"); | |
717 | break; | |
718 | } | |
4f8a3d8b | 719 | AliDebug(1,Form("Using the following trigger code %s - %s", |
720 | fTriggerProcessor->GetName(),fTriggerProcessor->GetTitle())); | |
4ce497c4 | 721 | |
afb3ccf0 | 722 | if ( muon()->GetTriggerEffCells() ) |
4ce497c4 | 723 | { |
724 | fTriggerEfficiency = fCalibrationData->TriggerEfficiency(); | |
725 | if ( fTriggerEfficiency ) | |
726 | { | |
727 | AliInfo("Will apply trigger efficiency"); | |
728 | } | |
729 | else | |
730 | { | |
731 | AliError("I was requested to apply trigger efficiency, but I could " | |
732 | "not get it !"); | |
733 | } | |
734 | } | |
735 | ||
736 | if ( fGenerateNoisyDigits ) | |
737 | { | |
738 | AliInfo("Will generate noise-only digits for tracker"); | |
739 | } | |
740 | ||
92aeef15 | 741 | fIsInitialized = kTRUE; |
742 | return kTRUE; | |
743 | } | |
744 | ||
745 | //_____________________________________________________________________________ | |
746 | Bool_t | |
05314992 | 747 | AliMUONDigitizerV3::MergeDigits(const AliMUONDigit& src, |
748 | AliMUONDigit& srcAndDest) | |
92aeef15 | 749 | { |
05314992 | 750 | // |
751 | // Merge 2 digits (src and srcAndDest) into srcAndDest. | |
752 | // | |
92aeef15 | 753 | AliDebug(1,"Merging the following digits:"); |
05314992 | 754 | StdoutToAliDebug(1,src.Print("tracks");); |
755 | StdoutToAliDebug(1,srcAndDest.Print("tracks");); | |
92aeef15 | 756 | |
757 | Bool_t check = ( src.DetElemId() == srcAndDest.DetElemId() && | |
758 | src.PadX() == srcAndDest.PadX() && | |
759 | src.PadY() == srcAndDest.PadY() && | |
760 | src.Cathode() == srcAndDest.Cathode() ); | |
761 | if (!check) | |
762 | { | |
763 | return kFALSE; | |
764 | } | |
765 | ||
92aeef15 | 766 | srcAndDest.AddSignal(src.Signal()); |
767 | srcAndDest.AddPhysicsSignal(src.Physics()); | |
05314992 | 768 | for ( Int_t i = 0; i < src.Ntracks(); ++i ) |
769 | { | |
770 | srcAndDest.AddTrack(src.Track(i),src.TrackCharge(i)); | |
771 | } | |
772 | StdoutToAliDebug(1,cout << "result:"; srcAndDest.Print("tracks");); | |
92aeef15 | 773 | return kTRUE; |
774 | } | |
775 | ||
776 | //_____________________________________________________________________________ | |
777 | void | |
778 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONData& outputData, | |
05314992 | 779 | const AliMUONData& inputData, Int_t mask) |
92aeef15 | 780 | { |
05314992 | 781 | // |
782 | // Merge the sdigits in inputData with the digits already present in outputData | |
783 | // | |
92aeef15 | 784 | AliDebug(1,""); |
785 | ||
786 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) | |
787 | { | |
788 | TClonesArray* iDigits = inputData.SDigits(ich); | |
789 | TClonesArray* oDigits = outputData.Digits(ich); | |
790 | if (!iDigits) | |
791 | { | |
792 | AliError(Form("Could not get sdigits for ich=%d",ich)); | |
793 | return; | |
794 | } | |
795 | Int_t nSDigits = iDigits->GetEntriesFast(); | |
796 | for ( Int_t k = 0; k < nSDigits; ++k ) | |
797 | { | |
798 | AliMUONDigit* sdigit = static_cast<AliMUONDigit*>(iDigits->UncheckedAt(k)); | |
92aeef15 | 799 | if (!sdigit) |
800 | { | |
801 | AliError(Form("Could not get sdigit for ich=%d and k=%d",ich,k)); | |
802 | } | |
803 | else | |
804 | { | |
05314992 | 805 | // Update the track references using the mask. |
806 | // FIXME: this is dirty, for backward compatibility only. | |
807 | // Should re-design all this way of keeping track of MC information... | |
808 | if ( mask ) sdigit->PatchTracks(mask); | |
809 | // Then add or update the digit to the output. | |
92aeef15 | 810 | AddOrUpdateDigit(*oDigits,*sdigit); |
811 | } | |
812 | } | |
813 | } | |
814 | } |