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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 "AliMUON.h" | |
21 | #include "AliMUONCalibrationData.h" | |
22 | #include "AliMUONConstants.h" | |
23 | #include "AliMUONData.h" | |
24 | #include "AliMUONDataIterator.h" | |
25 | #include "AliMUONDigit.h" | |
26 | #include "AliMUONSegmentation.h" | |
27 | #include "AliMUONTriggerEfficiencyCells.h" | |
28 | #include "AliMUONTriggerElectronics.h" | |
29 | #include "AliMUONVCalibParam.h" | |
30 | ||
31 | #include "AliMpDEIterator.h" | |
32 | #include "AliMpDEManager.h" | |
33 | #include "AliMpIntPair.h" | |
34 | #include "AliMpPad.h" | |
35 | #include "AliMpStationType.h" | |
36 | #include "AliMpSegmentation.h" | |
37 | #include "AliMpVSegmentation.h" | |
38 | #include "AliMpDEManager.h" | |
39 | ||
40 | #include "AliRun.h" | |
41 | #include "AliRunDigitizer.h" | |
42 | #include "AliRunLoader.h" | |
43 | #include "AliLog.h" | |
44 | ||
45 | #include "Riostream.h" | |
46 | #include "TF1.h" | |
47 | #include "TRandom.h" | |
48 | #include "TString.h" | |
49 | ||
50 | /// | |
51 | /// \class AliMUONDigitizerV3 | |
52 | /// The digitizer is performing the transformation to go from SDigits (digits | |
53 | /// w/o any electronic noise) to Digits (w/ electronic noise, and decalibration) | |
54 | /// | |
55 | /// The decalibration is performed by doing the reverse operation of the | |
56 | /// calibration, that is we do (Signal+pedestal)/gain -> ADC | |
57 | /// | |
58 | /// Note also that the digitizer takes care of merging sdigits that belongs | |
59 | /// to the same pad, either because we're merging several input sdigit files | |
60 | /// or with a single file because the sdigitizer does not merge sdigits itself | |
61 | /// (for performance reason mainly, and because anyway we know we have to do it | |
62 | /// here, at the digitization level). | |
63 | /// | |
64 | ||
65 | namespace | |
66 | { | |
67 | AliMUON* muon() | |
68 | { | |
69 | return static_cast<AliMUON*>(gAlice->GetModule("MUON")); | |
70 | } | |
71 | } | |
72 | ||
73 | const Double_t AliMUONDigitizerV3::fgkNSigmas=3; | |
74 | ||
75 | /// \cond CLASSIMP | |
76 | ClassImp(AliMUONDigitizerV3) | |
77 | /// \endcond | |
78 | ||
79 | //_____________________________________________________________________________ | |
80 | AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager, | |
81 | Bool_t generateNoisyDigits) | |
82 | : AliDigitizer(manager), | |
83 | fIsInitialized(kFALSE), | |
84 | fOutputData(0x0), | |
85 | fCalibrationData(0x0), | |
86 | fTriggerProcessor(0x0), | |
87 | fTriggerEfficiency(0x0), | |
88 | fFindDigitIndexTimer(), | |
89 | fGenerateNoisyDigitsTimer(), | |
90 | fExecTimer(), | |
91 | fNoiseFunction(0x0), | |
92 | fGenerateNoisyDigits(generateNoisyDigits) | |
93 | { | |
94 | /// Ctor. | |
95 | ||
96 | AliDebug(1,Form("AliRunDigitizer=%p",fManager)); | |
97 | fGenerateNoisyDigitsTimer.Start(kTRUE); fGenerateNoisyDigitsTimer.Stop(); | |
98 | fExecTimer.Start(kTRUE); fExecTimer.Stop(); | |
99 | fFindDigitIndexTimer.Start(kTRUE); fFindDigitIndexTimer.Stop(); | |
100 | } | |
101 | ||
102 | //_____________________________________________________________________________ | |
103 | AliMUONDigitizerV3::~AliMUONDigitizerV3() | |
104 | { | |
105 | /// Dtor. Note we're the owner of some pointers. | |
106 | ||
107 | AliDebug(1,"dtor"); | |
108 | ||
109 | delete fOutputData; | |
110 | delete fCalibrationData; | |
111 | delete fTriggerProcessor; | |
112 | delete fNoiseFunction; | |
113 | ||
114 | AliDebug(1, Form("Execution time for FindDigitIndex() : R:%.2fs C:%.2fs", | |
115 | fFindDigitIndexTimer.RealTime(),fFindDigitIndexTimer.CpuTime())); | |
116 | if ( fGenerateNoisyDigits ) | |
117 | { | |
118 | AliDebug(1, Form("Execution time for GenerateNoisyDigits() : R:%.2fs C:%.2fs", | |
119 | fGenerateNoisyDigitsTimer.RealTime(), | |
120 | fGenerateNoisyDigitsTimer.CpuTime())); | |
121 | } | |
122 | AliDebug(1, Form("Execution time for Exec() : R:%.2fs C:%.2fs", | |
123 | fExecTimer.RealTime(),fExecTimer.CpuTime())); | |
124 | ||
125 | } | |
126 | ||
127 | //_____________________________________________________________________________ | |
128 | void | |
129 | AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONDigit& digit, Bool_t addNoise) | |
130 | { | |
131 | /// For tracking digits, starting from an ideal digit's charge, we : | |
132 | /// | |
133 | /// - add some noise (thus leading to a realistic charge), if requested to do so | |
134 | /// - divide by a gain (thus decalibrating the digit) | |
135 | /// - add a pedestal (thus decalibrating the digit) | |
136 | /// - sets the signal to zero if below 3*sigma of the noise | |
137 | ||
138 | static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC. | |
139 | ||
140 | Float_t signal = digit.Signal(); | |
141 | ||
142 | if ( !addNoise ) | |
143 | { | |
144 | digit.SetADC(TMath::Nint(signal)); | |
145 | return; | |
146 | } | |
147 | ||
148 | Int_t detElemId = digit.DetElemId(); | |
149 | ||
150 | Int_t manuId = digit.ManuId(); | |
151 | Int_t manuChannel = digit.ManuChannel(); | |
152 | ||
153 | AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId); | |
154 | if (!pedestal) | |
155 | { | |
156 | AliFatal(Form("Could not get pedestal for DE=%d manuId=%d", | |
157 | detElemId,manuId)); | |
158 | } | |
159 | Float_t pedestalMean = pedestal->ValueAsFloat(manuChannel,0); | |
160 | Float_t pedestalSigma = pedestal->ValueAsFloat(manuChannel,1); | |
161 | ||
162 | AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId); | |
163 | if (!gain) | |
164 | { | |
165 | AliFatal(Form("Could not get gain for DE=%d manuId=%d", | |
166 | detElemId,manuId)); | |
167 | } | |
168 | Float_t gainMean = gain->ValueAsFloat(manuChannel,0); | |
169 | ||
170 | Float_t adcNoise = gRandom->Gaus(0.0,pedestalSigma); | |
171 | ||
172 | Int_t adc; | |
173 | ||
174 | if ( gainMean < 1E-6 ) | |
175 | { | |
176 | AliError(Form("Got a too small gain %e for DE=%d manuId=%d manuChannel=%d. " | |
177 | "Setting signal to 0.", | |
178 | gainMean,detElemId,manuId,manuChannel)); | |
179 | adc = 0; | |
180 | } | |
181 | else | |
182 | { | |
183 | adc = TMath::Nint( signal / gainMean + pedestalMean + adcNoise);/// | |
184 | ||
185 | if ( adc <= pedestalMean + fgkNSigmas*pedestalSigma ) | |
186 | { | |
187 | adc = 0; | |
188 | } | |
189 | } | |
190 | ||
191 | // be sure we stick to 12 bits. | |
192 | if ( adc > kMaxADC ) | |
193 | { | |
194 | adc = kMaxADC; | |
195 | } | |
196 | ||
197 | digit.SetPhysicsSignal(TMath::Nint(signal)); | |
198 | digit.SetSignal(adc); | |
199 | digit.SetADC(adc); | |
200 | } | |
201 | ||
202 | //_____________________________________________________________________________ | |
203 | void | |
204 | AliMUONDigitizerV3::ApplyResponseToTriggerDigit(AliMUONDigit& digit, | |
205 | AliMUONData* data) | |
206 | { | |
207 | /// \todo add comment | |
208 | ||
209 | if ( !fTriggerEfficiency ) return; | |
210 | ||
211 | AliMUONDigit* correspondingDigit = FindCorrespondingDigit(digit,data); | |
212 | ||
213 | if(!correspondingDigit)return;//reject bad correspondences | |
214 | ||
215 | Int_t detElemId = digit.DetElemId(); | |
216 | ||
217 | AliMpSegmentation* segmentation = AliMpSegmentation::Instance(); | |
218 | const AliMpVSegmentation* segment[2] = | |
219 | { | |
220 | segmentation->GetMpSegmentation(detElemId,digit.Cathode()), | |
221 | segmentation->GetMpSegmentation(detElemId,correspondingDigit->Cathode()) | |
222 | }; | |
223 | ||
224 | AliMpPad pad[2] = | |
225 | { | |
226 | segment[0]->PadByIndices(AliMpIntPair(digit.PadX(),digit.PadY()),kTRUE), | |
227 | segment[1]->PadByIndices(AliMpIntPair(correspondingDigit->PadX(),correspondingDigit->PadY()),kTRUE) | |
228 | }; | |
229 | ||
230 | Int_t ix(0); | |
231 | Int_t iy(1); | |
232 | ||
233 | if (digit.Cathode()==0) | |
234 | { | |
235 | ix=1; | |
236 | iy=0; | |
237 | } | |
238 | ||
239 | Float_t x = pad[ix].Position().X(); | |
240 | Float_t y = pad[iy].Position().Y(); | |
241 | if ( x==-1 && y==-1 ) | |
242 | { | |
243 | x=-9999.; | |
244 | y=-9999.; | |
245 | AliError(Form("Got an unknown position for a digit in DE %d at (ix,iy)=(%d,%d)", | |
246 | detElemId,pad[ix].GetIndices().GetFirst(),pad[iy].GetIndices().GetSecond())); | |
247 | } | |
248 | Float_t x0 = segment[0]->Dimensions().X(); | |
249 | Float_t y0 = segment[1]->Dimensions().Y(); | |
250 | TVector2 newCoord = fTriggerEfficiency->ChangeReferenceFrame(x, y, x0, y0); | |
251 | ||
252 | Bool_t isTrig[2]; | |
253 | fTriggerEfficiency->IsTriggered(detElemId, newCoord.Px(), newCoord.Py(), | |
254 | isTrig[0], isTrig[1]); | |
255 | ||
256 | if (!isTrig[digit.Cathode()]) | |
257 | { | |
258 | digit.SetSignal(0); | |
259 | } | |
260 | ||
261 | if ( &digit != correspondingDigit ) | |
262 | { | |
263 | if (!isTrig[correspondingDigit->Cathode()]) | |
264 | { | |
265 | correspondingDigit->SetSignal(0); | |
266 | } | |
267 | } | |
268 | } | |
269 | ||
270 | //_____________________________________________________________________________ | |
271 | void | |
272 | AliMUONDigitizerV3::ApplyResponse() | |
273 | { | |
274 | /// Loop over all chamber digits, and apply the response to them | |
275 | /// Note that this method may remove digits. | |
276 | ||
277 | const Bool_t kAddNoise = kTRUE; | |
278 | ||
279 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) | |
280 | { | |
281 | TClonesArray* digits = fOutputData->Digits(ich); | |
282 | Int_t n = digits->GetEntriesFast(); | |
283 | Bool_t trackingChamber = ( ich < AliMUONConstants::NTrackingCh() ); | |
284 | for ( Int_t i = 0; i < n; ++i ) | |
285 | { | |
286 | AliMUONDigit* d = static_cast<AliMUONDigit*>(digits->UncheckedAt(i)); | |
287 | if ( trackingChamber ) | |
288 | { | |
289 | ApplyResponseToTrackerDigit(*d,kAddNoise); | |
290 | } | |
291 | else | |
292 | { | |
293 | ApplyResponseToTriggerDigit(*d,fOutputData); | |
294 | } | |
295 | if ( d->Signal() <= 0 ) | |
296 | { | |
297 | digits->RemoveAt(i); | |
298 | } | |
299 | } | |
300 | digits->Compress(); | |
301 | } | |
302 | ||
303 | // The version below, using iterator, does not yet work (as the iterator | |
304 | // assumes it is reading digits from the tree, while in this case it's | |
305 | // writing...) | |
306 | // | |
307 | // AliMUONDigit* digit(0x0); | |
308 | // | |
309 | // // First loop on tracker digits | |
310 | // AliMUONDataIterator tracker(fOutputData,"D",AliMUONDataIterator::kTrackingChambers); | |
311 | // | |
312 | // while ( ( digit = static_cast<AliMUONDigit*>(tracker.Next()) ) ) | |
313 | // { | |
314 | // ApplyResponseToTrackerDigit(*digit); | |
315 | // if ( digit->Signal() <= 0 ) | |
316 | // { | |
317 | // tracker.Remove(); | |
318 | // } | |
319 | // | |
320 | // } | |
321 | // | |
322 | // // Then loop on trigger digits | |
323 | // AliMUONDataIterator trigger(fOutputData,"D",AliMUONDataIterator::kTriggerChambers); | |
324 | // | |
325 | // while ( ( digit = static_cast<AliMUONDigit*>(trigger.Next()) ) ) | |
326 | // { | |
327 | // ApplyResponseToTriggerDigit(*digit,fOutputData); | |
328 | // if ( digit->Signal() <= 0 ) | |
329 | // { | |
330 | // trigger.Remove(); | |
331 | // } | |
332 | // } | |
333 | } | |
334 | ||
335 | //_____________________________________________________________________________ | |
336 | void | |
337 | AliMUONDigitizerV3::AddOrUpdateDigit(TClonesArray& array, | |
338 | const AliMUONDigit& digit) | |
339 | { | |
340 | /// Add or update a digit, depending on whether there's already a digit | |
341 | /// for the corresponding channel. | |
342 | ||
343 | Int_t ix = FindDigitIndex(array,digit); | |
344 | ||
345 | if (ix>=0) | |
346 | { | |
347 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(ix)); | |
348 | Bool_t ok = MergeDigits(digit,*d); | |
349 | if (!ok) | |
350 | { | |
351 | AliError("Digits are not mergeable !"); | |
352 | } | |
353 | } | |
354 | else | |
355 | { | |
356 | ix = array.GetLast() + 1; | |
357 | new(array[ix]) AliMUONDigit(digit); | |
358 | } | |
359 | ||
360 | } | |
361 | ||
362 | //_____________________________________________________________________________ | |
363 | void | |
364 | AliMUONDigitizerV3::Exec(Option_t*) | |
365 | { | |
366 | /// Main method. | |
367 | /// We first loop over input files, and merge the sdigits we found there. | |
368 | /// Second, we digitize all the resulting sdigits | |
369 | /// Then we generate noise-only digits (for tracker only) | |
370 | /// And we finally generate the trigger outputs. | |
371 | ||
372 | AliDebug(1, "Running digitizer."); | |
373 | ||
374 | if ( fManager->GetNinputs() == 0 ) | |
375 | { | |
376 | AliWarning("No input set. Nothing to do."); | |
377 | return; | |
378 | } | |
379 | ||
380 | if ( !fIsInitialized ) | |
381 | { | |
382 | AliError("Not initialized. Cannot perform the work. Sorry"); | |
383 | return; | |
384 | } | |
385 | ||
386 | fExecTimer.Start(kFALSE); | |
387 | ||
388 | Int_t nInputFiles = fManager->GetNinputs(); | |
389 | ||
390 | if ( fOutputData->TreeD() == 0x0 ) | |
391 | { | |
392 | AliDebug(1,"Calling MakeDigitsContainer"); | |
393 | fOutputData->GetLoader()->MakeDigitsContainer(); | |
394 | } | |
395 | fOutputData->MakeBranch("D,GLT"); | |
396 | fOutputData->SetTreeAddress("D,GLT"); | |
397 | ||
398 | // Loop over all the input files, and merge the sdigits found in those | |
399 | // files. | |
400 | for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile ) | |
401 | { | |
402 | AliMUONData* inputData = GetDataAccess(fManager->GetInputFolderName(iFile)); | |
403 | if (!inputData) | |
404 | { | |
405 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
406 | } | |
407 | ||
408 | inputData->GetLoader()->LoadSDigits("READ"); | |
409 | inputData->SetTreeAddress("S"); | |
410 | inputData->GetSDigits(); | |
411 | ||
412 | MergeWithSDigits(*fOutputData,*inputData,fManager->GetMask(iFile)); | |
413 | ||
414 | inputData->ResetSDigits(); | |
415 | inputData->GetLoader()->UnloadSDigits(); | |
416 | delete inputData; | |
417 | } | |
418 | ||
419 | // At this point, we do have digit arrays (one per chamber) which contains | |
420 | // the merging of all the sdigits of the input file(s). | |
421 | // We now massage them to apply the detector response, i.e. this | |
422 | // is here that we do the "digitization" work. | |
423 | ||
424 | ApplyResponse(); | |
425 | ||
426 | if ( fGenerateNoisyDigits ) | |
427 | { | |
428 | // Generate noise-only digits for tracker. | |
429 | GenerateNoisyDigits(); | |
430 | } | |
431 | ||
432 | // We generate the global and local trigger decisions. | |
433 | fTriggerProcessor->ExecuteTask(); | |
434 | ||
435 | // Fill the output treeD | |
436 | fOutputData->Fill("D,GLT"); | |
437 | ||
438 | // Write to the output tree(D). | |
439 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
440 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
441 | // the 3 branches. | |
442 | fOutputData->GetLoader()->WriteDigits("OVERWRITE"); | |
443 | ||
444 | // Finally, we clean up after ourselves. | |
445 | fOutputData->ResetDigits(); | |
446 | fOutputData->ResetTrigger(); | |
447 | fOutputData->GetLoader()->UnloadDigits(); | |
448 | ||
449 | fExecTimer.Stop(); | |
450 | } | |
451 | ||
452 | //_____________________________________________________________________________ | |
453 | AliMUONDigit* | |
454 | AliMUONDigitizerV3::FindCorrespondingDigit(AliMUONDigit& digit, | |
455 | AliMUONData* data) const | |
456 | { | |
457 | /// \todo add comment | |
458 | ||
459 | AliMUONDataIterator it(data,"D",AliMUONDataIterator::kTriggerChambers); | |
460 | AliMUONDigit* cd; | |
461 | ||
462 | for(;;){ | |
463 | cd = static_cast<AliMUONDigit*>(it.Next()); | |
464 | if(!cd)continue; | |
465 | if (cd->DetElemId() == digit.DetElemId() && | |
466 | cd->PadX() == digit.PadX() && | |
467 | cd->PadY() == digit.PadY() && | |
468 | cd->Cathode() == digit.Cathode()){ | |
469 | break; | |
470 | } | |
471 | } | |
472 | //The corresponding digit is searched only forward in the AliMUONData. | |
473 | //In this way when the first digit of the couple is given, the second digit is found and the efficiency is applied to both. | |
474 | //Afterwards, when the second digit of the couple is given the first one is not found and hence efficiency is not applied again | |
475 | ||
476 | while ( ( cd = static_cast<AliMUONDigit*>(it.Next()) ) ) | |
477 | { | |
478 | if(!cd)continue;//avoid problems when 1 digit is removed | |
479 | if ( cd->DetElemId() == digit.DetElemId() && | |
480 | cd->Hit() == digit.Hit() && | |
481 | cd->Cathode() != digit.Cathode() ) | |
482 | { | |
483 | return cd; | |
484 | } | |
485 | } | |
486 | return 0x0; | |
487 | } | |
488 | ||
489 | ||
490 | //_____________________________________________________________________________ | |
491 | Int_t | |
492 | AliMUONDigitizerV3::FindDigitIndex(TClonesArray& array, | |
493 | const AliMUONDigit& digit) const | |
494 | { | |
495 | /// Return the index of digit within array, if that digit is there, | |
496 | /// otherwise returns -1 | |
497 | /// | |
498 | /// \todo FIXME: this is of course not the best implementation you can think of. | |
499 | /// Reconsider the use of hit/digit map... ? (but be sure it's needed!) | |
500 | ||
501 | fFindDigitIndexTimer.Start(kFALSE); | |
502 | ||
503 | Int_t n = array.GetEntriesFast(); | |
504 | for ( Int_t i = 0; i < n; ++i ) | |
505 | { | |
506 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(i)); | |
507 | if ( d->DetElemId() == digit.DetElemId() && | |
508 | d->PadX() == digit.PadX() && | |
509 | d->PadY() == digit.PadY() && | |
510 | d->Cathode() == digit.Cathode() ) | |
511 | { | |
512 | fFindDigitIndexTimer.Stop(); | |
513 | return i; | |
514 | } | |
515 | } | |
516 | fFindDigitIndexTimer.Stop(); | |
517 | return -1; | |
518 | } | |
519 | ||
520 | //_____________________________________________________________________________ | |
521 | void | |
522 | AliMUONDigitizerV3::GenerateNoisyDigits() | |
523 | { | |
524 | /// According to a given probability, generate digits that | |
525 | /// have a signal above the noise cut (ped+n*sigma_ped), i.e. digits | |
526 | /// that are "only noise". | |
527 | ||
528 | if ( !fNoiseFunction ) | |
529 | { | |
530 | fNoiseFunction = new TF1("AliMUONDigitizerV3::fNoiseFunction","gaus", | |
531 | fgkNSigmas,fgkNSigmas*10); | |
532 | ||
533 | fNoiseFunction->SetParameters(1,0,1); | |
534 | } | |
535 | ||
536 | fGenerateNoisyDigitsTimer.Start(kFALSE); | |
537 | ||
538 | for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i ) | |
539 | { | |
540 | AliMpDEIterator it; | |
541 | ||
542 | it.First(i); | |
543 | ||
544 | while ( !it.IsDone() ) | |
545 | { | |
546 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
547 | { | |
548 | GenerateNoisyDigitsForOneCathode(it.CurrentDE(),cathode); | |
549 | } | |
550 | it.Next(); | |
551 | } | |
552 | } | |
553 | ||
554 | fGenerateNoisyDigitsTimer.Stop(); | |
555 | } | |
556 | ||
557 | //_____________________________________________________________________________ | |
558 | void | |
559 | AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(Int_t detElemId, Int_t cathode) | |
560 | { | |
561 | /// Generate noise-only digits for one cathode of one detection element. | |
562 | /// Called by GenerateNoisyDigits() | |
563 | ||
564 | Int_t chamberId = AliMpDEManager::GetChamberId(detElemId); | |
565 | TClonesArray* digits = fOutputData->Digits(chamberId); | |
566 | ||
567 | const AliMpVSegmentation* seg | |
568 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,cathode); | |
569 | Int_t nofPads = seg->NofPads(); | |
570 | ||
571 | Int_t maxIx = seg->MaxPadIndexX(); | |
572 | Int_t maxIy = seg->MaxPadIndexY(); | |
573 | ||
574 | static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgkNSigmas/TMath::Sqrt(2.0)) / 2. ; | |
575 | ||
576 | Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads); | |
577 | if ( !nofNoisyPads ) return; | |
578 | ||
579 | nofNoisyPads = | |
580 | TMath::Nint(gRandom->Gaus(nofNoisyPads, | |
581 | nofNoisyPads/TMath::Sqrt(nofNoisyPads))); | |
582 | ||
583 | AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads)); | |
584 | ||
585 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) | |
586 | { | |
587 | Int_t ix(-1); | |
588 | Int_t iy(-1); | |
589 | do { | |
590 | ix = gRandom->Integer(maxIx+1); | |
591 | iy = gRandom->Integer(maxIy+1); | |
592 | } while ( !seg->HasPad(AliMpIntPair(ix,iy)) ); | |
593 | AliMUONDigit d; | |
594 | d.SetDetElemId(detElemId); | |
595 | d.SetCathode(cathode); | |
596 | d.SetPadX(ix); | |
597 | d.SetPadY(iy); | |
598 | if ( FindDigitIndex(*digits,d) >= 0 ) | |
599 | { | |
600 | // this digit is already there, and not noise-only, we simply skip it | |
601 | continue; | |
602 | } | |
603 | AliMpPad pad = seg->PadByIndices(AliMpIntPair(ix,iy)); | |
604 | Int_t manuId = pad.GetLocation().GetFirst(); | |
605 | Int_t manuChannel = pad.GetLocation().GetSecond(); | |
606 | ||
607 | d.SetElectronics(manuId,manuChannel); | |
608 | ||
609 | AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId); | |
610 | ||
611 | Float_t pedestalMean = pedestals->ValueAsFloat(manuChannel,0); | |
612 | Float_t pedestalSigma = pedestals->ValueAsFloat(manuChannel,1); | |
613 | ||
614 | Double_t ped = fNoiseFunction->GetRandom()*pedestalSigma; | |
615 | ||
616 | d.SetSignal(TMath::Nint(ped+pedestalMean+0.5)); | |
617 | d.SetPhysicsSignal(0); | |
618 | d.NoiseOnly(kTRUE); | |
619 | AliDebug(3,Form("Adding a pure noise digit :")); | |
620 | StdoutToAliDebug(3,cout << "Before Response: " << endl; | |
621 | d.Print();); | |
622 | ApplyResponseToTrackerDigit(d,kFALSE); | |
623 | if ( d.Signal() > 0 ) | |
624 | { | |
625 | AddOrUpdateDigit(*digits,d); | |
626 | } | |
627 | else | |
628 | { | |
629 | AliError("Pure noise below threshold. This should not happen. Not adding " | |
630 | "this digit."); | |
631 | } | |
632 | StdoutToAliDebug(3,cout << "After Response: " << endl; | |
633 | d.Print();); | |
634 | } | |
635 | } | |
636 | ||
637 | //_____________________________________________________________________________ | |
638 | AliMUONData* | |
639 | AliMUONDigitizerV3::GetDataAccess(const TString& folderName) | |
640 | { | |
641 | /// Create an AliMUONData to deal with data found in folderName. | |
642 | ||
643 | AliDebug(1,Form("Getting access to folder %s",folderName.Data())); | |
644 | AliRunLoader* runLoader = AliRunLoader::GetRunLoader(folderName); | |
645 | if (!runLoader) | |
646 | { | |
647 | AliError(Form("Could not get RunLoader from folder %s",folderName.Data())); | |
648 | return 0x0; | |
649 | } | |
650 | AliLoader* loader = static_cast<AliLoader*>(runLoader->GetLoader("MUONLoader")); | |
651 | if (!loader) | |
652 | { | |
653 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
654 | return 0x0; | |
655 | } | |
656 | AliMUONData* data = new AliMUONData(loader,"MUON","MUONDataForDigitOutput"); | |
657 | AliDebug(1,Form("AliMUONData=%p loader=%p",data,loader)); | |
658 | return data; | |
659 | } | |
660 | ||
661 | //_____________________________________________________________________________ | |
662 | Bool_t | |
663 | AliMUONDigitizerV3::Init() | |
664 | { | |
665 | /// Initialization of the TTask : | |
666 | /// a) set the outputData pointer | |
667 | /// b) create the calibrationData, according to run number | |
668 | /// c) create the trigger processing task | |
669 | ||
670 | AliDebug(1,""); | |
671 | ||
672 | if ( fIsInitialized ) | |
673 | { | |
674 | AliError("Object already initialized."); | |
675 | return kFALSE; | |
676 | } | |
677 | ||
678 | if (!fManager) | |
679 | { | |
680 | AliError("fManager is null !"); | |
681 | return kFALSE; | |
682 | } | |
683 | ||
684 | fOutputData = GetDataAccess(fManager->GetOutputFolderName()); | |
685 | if (!fOutputData) | |
686 | { | |
687 | AliError("Can not perform digitization. I'm sorry"); | |
688 | return kFALSE; | |
689 | } | |
690 | AliDebug(1,Form("fOutputData=%p",fOutputData)); | |
691 | ||
692 | AliRunLoader* runLoader = fOutputData->GetLoader()->GetRunLoader(); | |
693 | AliRun* galice = runLoader->GetAliRun(); | |
694 | Int_t runnumber = galice->GetRunNumber(); | |
695 | ||
696 | fCalibrationData = new AliMUONCalibrationData(runnumber); | |
697 | ||
698 | fTriggerProcessor = new AliMUONTriggerElectronics(fOutputData,fCalibrationData); | |
699 | ||
700 | if ( muon()->GetTriggerEffCells() ) | |
701 | { | |
702 | fTriggerEfficiency = fCalibrationData->TriggerEfficiency(); | |
703 | if ( fTriggerEfficiency ) | |
704 | { | |
705 | AliDebug(1, "Will apply trigger efficiency"); | |
706 | } | |
707 | else | |
708 | { | |
709 | AliError("I was requested to apply trigger efficiency, but I could " | |
710 | "not get it !"); | |
711 | } | |
712 | } | |
713 | ||
714 | if ( fGenerateNoisyDigits ) | |
715 | { | |
716 | AliDebug(1, "Will generate noise-only digits for tracker"); | |
717 | } | |
718 | ||
719 | fIsInitialized = kTRUE; | |
720 | return kTRUE; | |
721 | } | |
722 | ||
723 | //_____________________________________________________________________________ | |
724 | Bool_t | |
725 | AliMUONDigitizerV3::MergeDigits(const AliMUONDigit& src, | |
726 | AliMUONDigit& srcAndDest) | |
727 | { | |
728 | /// Merge 2 digits (src and srcAndDest) into srcAndDest. | |
729 | ||
730 | AliDebug(1,"Merging the following digits:"); | |
731 | StdoutToAliDebug(1,src.Print("tracks");); | |
732 | StdoutToAliDebug(1,srcAndDest.Print("tracks");); | |
733 | ||
734 | Bool_t check = ( src.DetElemId() == srcAndDest.DetElemId() && | |
735 | src.PadX() == srcAndDest.PadX() && | |
736 | src.PadY() == srcAndDest.PadY() && | |
737 | src.Cathode() == srcAndDest.Cathode() ); | |
738 | if (!check) | |
739 | { | |
740 | return kFALSE; | |
741 | } | |
742 | ||
743 | srcAndDest.AddSignal(src.Signal()); | |
744 | srcAndDest.AddPhysicsSignal(src.Physics()); | |
745 | for ( Int_t i = 0; i < src.Ntracks(); ++i ) | |
746 | { | |
747 | srcAndDest.AddTrack(src.Track(i),src.TrackCharge(i)); | |
748 | } | |
749 | StdoutToAliDebug(1,cout << "result:"; srcAndDest.Print("tracks");); | |
750 | return kTRUE; | |
751 | } | |
752 | ||
753 | //_____________________________________________________________________________ | |
754 | void | |
755 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONData& outputData, | |
756 | const AliMUONData& inputData, Int_t mask) | |
757 | { | |
758 | /// Merge the sdigits in inputData with the digits already present in outputData | |
759 | ||
760 | AliDebug(1,""); | |
761 | ||
762 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) | |
763 | { | |
764 | TClonesArray* iDigits = inputData.SDigits(ich); | |
765 | TClonesArray* oDigits = outputData.Digits(ich); | |
766 | if (!iDigits) | |
767 | { | |
768 | AliError(Form("Could not get sdigits for ich=%d",ich)); | |
769 | return; | |
770 | } | |
771 | Int_t nSDigits = iDigits->GetEntriesFast(); | |
772 | for ( Int_t k = 0; k < nSDigits; ++k ) | |
773 | { | |
774 | AliMUONDigit* sdigit = static_cast<AliMUONDigit*>(iDigits->UncheckedAt(k)); | |
775 | if (!sdigit) | |
776 | { | |
777 | AliError(Form("Could not get sdigit for ich=%d and k=%d",ich,k)); | |
778 | } | |
779 | else | |
780 | { | |
781 | // Update the track references using the mask. | |
782 | // FIXME: this is dirty, for backward compatibility only. | |
783 | // Should re-design all this way of keeping track of MC information... | |
784 | if ( mask ) sdigit->PatchTracks(mask); | |
785 | // Then add or update the digit to the output. | |
786 | AddOrUpdateDigit(*oDigits,*sdigit); | |
787 | } | |
788 | } | |
789 | } | |
790 | } |