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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, |
81 | Bool_t useTriggerEfficiency, | |
82 | Bool_t generateNoisyDigits) | |
92aeef15 | 83 | : AliDigitizer(manager), |
92aeef15 | 84 | fIsInitialized(kFALSE), |
85 | fOutputData(0x0), | |
86 | fCalibrationData(0x0), | |
87 | fTriggerProcessor(0x0), | |
4ce497c4 | 88 | fTriggerCodeVersion(triggerCodeVersion), |
89 | fUseTriggerEfficiency(useTriggerEfficiency), | |
90 | fTriggerEfficiency(0x0), | |
91 | fNoiseFunction(0x0), | |
92 | fGenerateNoisyDigits(generateNoisyDigits) | |
92aeef15 | 93 | { |
05314992 | 94 | // |
95 | // Ctor. | |
96 | // | |
92aeef15 | 97 | AliDebug(1,Form("AliRunDigitizer=%p",fManager)); |
4ce497c4 | 98 | fGenerateNoisyDigitsTimer.Start(kTRUE); fGenerateNoisyDigitsTimer.Stop(); |
99 | fExecTimer.Start(kTRUE); fExecTimer.Stop(); | |
100 | fFindDigitIndexTimer.Start(kTRUE); fFindDigitIndexTimer.Stop(); | |
92aeef15 | 101 | } |
102 | ||
884a73f1 | 103 | //______________________________________________________________________________ |
104 | AliMUONDigitizerV3::AliMUONDigitizerV3(const AliMUONDigitizerV3& right) | |
105 | : AliDigitizer(right) | |
106 | { | |
107 | /// Protected copy constructor (not implemented) | |
108 | ||
109 | AliFatal("Copy constructor not provided."); | |
110 | } | |
111 | ||
92aeef15 | 112 | //_____________________________________________________________________________ |
113 | AliMUONDigitizerV3::~AliMUONDigitizerV3() | |
114 | { | |
05314992 | 115 | // |
116 | // Dtor. Note we're the owner of some pointers. | |
117 | // | |
92aeef15 | 118 | AliDebug(1,"dtor"); |
4ce497c4 | 119 | |
92aeef15 | 120 | delete fOutputData; |
121 | delete fCalibrationData; | |
122 | delete fTriggerProcessor; | |
4ce497c4 | 123 | delete fNoiseFunction; |
124 | ||
125 | AliInfo(Form("Execution time for FindDigitIndex() : R:%.2fs C:%.2fs", | |
126 | fFindDigitIndexTimer.RealTime(),fFindDigitIndexTimer.CpuTime())); | |
127 | if ( fGenerateNoisyDigits ) | |
128 | { | |
129 | AliInfo(Form("Execution time for GenerateNoisyDigits() : R:%.2fs C:%.2fs", | |
130 | fGenerateNoisyDigitsTimer.RealTime(), | |
131 | fGenerateNoisyDigitsTimer.CpuTime())); | |
132 | } | |
133 | AliInfo(Form("Execution time for Exec() : R:%.2fs C:%.2fs", | |
134 | fExecTimer.RealTime(),fExecTimer.CpuTime())); | |
135 | ||
92aeef15 | 136 | } |
137 | ||
884a73f1 | 138 | //______________________________________________________________________________ |
139 | AliMUONDigitizerV3& | |
140 | AliMUONDigitizerV3::operator=(const AliMUONDigitizerV3& right) | |
141 | { | |
142 | /// Protected assignement operator (not implemented) | |
143 | ||
144 | // check assignement to self | |
145 | if (this == &right) return *this; | |
146 | ||
147 | AliFatal("Assignement operator not provided."); | |
148 | ||
149 | return *this; | |
150 | } | |
151 | ||
92aeef15 | 152 | //_____________________________________________________________________________ |
153 | void | |
4ce497c4 | 154 | AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONDigit& digit, Bool_t addNoise) |
92aeef15 | 155 | { |
92aeef15 | 156 | // For tracking digits, starting from an ideal digit's charge, we : |
157 | // | |
4ce497c4 | 158 | // - add some noise (thus leading to a realistic charge), if requested to do so |
92aeef15 | 159 | // - divide by a gain (thus decalibrating the digit) |
160 | // - add a pedestal (thus decalibrating the digit) | |
05314992 | 161 | // - sets the signal to zero if below 3*sigma of the noise |
92aeef15 | 162 | // |
59b91539 | 163 | |
4ce497c4 | 164 | static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC. |
59b91539 | 165 | |
4ce497c4 | 166 | Float_t signal = digit.Signal(); |
59b91539 | 167 | |
168 | if ( !addNoise ) | |
169 | { | |
170 | digit.SetADC(TMath::Nint(signal)); | |
171 | return; | |
172 | } | |
92aeef15 | 173 | |
4ce497c4 | 174 | Int_t detElemId = digit.DetElemId(); |
92aeef15 | 175 | |
176 | Int_t manuId = digit.ManuId(); | |
177 | Int_t manuChannel = digit.ManuChannel(); | |
178 | ||
4ce497c4 | 179 | AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId); |
92aeef15 | 180 | if (!pedestal) |
59b91539 | 181 | { |
182 | AliFatal(Form("Could not get pedestal for DE=%d manuId=%d", | |
183 | detElemId,manuId)); | |
184 | } | |
05314992 | 185 | Float_t pedestalMean = pedestal->ValueAsFloat(manuChannel,0); |
186 | Float_t pedestalSigma = pedestal->ValueAsFloat(manuChannel,1); | |
59b91539 | 187 | |
4ce497c4 | 188 | AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId); |
92aeef15 | 189 | if (!gain) |
59b91539 | 190 | { |
191 | AliFatal(Form("Could not get gain for DE=%d manuId=%d", | |
192 | detElemId,manuId)); | |
193 | } | |
05314992 | 194 | Float_t gainMean = gain->ValueAsFloat(manuChannel,0); |
4ce497c4 | 195 | |
59b91539 | 196 | Float_t adcNoise = gRandom->Gaus(0.0,pedestalSigma); |
197 | ||
92aeef15 | 198 | Int_t adc; |
59b91539 | 199 | |
05314992 | 200 | if ( gainMean < 1E-6 ) |
92aeef15 | 201 | { |
59b91539 | 202 | AliError(Form("Got a too small gain %e for DE=%d manuId=%d manuChannel=%d. " |
203 | "Setting signal to 0.", | |
204 | gainMean,detElemId,manuId,manuChannel)); | |
92aeef15 | 205 | adc = 0; |
206 | } | |
59b91539 | 207 | else |
208 | { | |
209 | adc = TMath::Nint( signal / gainMean + pedestalMean + adcNoise);/// | |
210 | ||
211 | if ( adc <= pedestalMean + fgkNSigmas*pedestalSigma ) | |
212 | { | |
213 | adc = 0; | |
214 | } | |
215 | } | |
216 | ||
05314992 | 217 | // be sure we stick to 12 bits. |
4ce497c4 | 218 | if ( adc > kMaxADC ) |
59b91539 | 219 | { |
220 | adc = kMaxADC; | |
221 | } | |
222 | ||
92aeef15 | 223 | digit.SetPhysicsSignal(TMath::Nint(signal)); |
224 | digit.SetSignal(adc); | |
225 | digit.SetADC(adc); | |
226 | } | |
227 | ||
4ce497c4 | 228 | //_____________________________________________________________________________ |
229 | void | |
230 | AliMUONDigitizerV3::ApplyResponseToTriggerDigit(AliMUONDigit& digit, | |
231 | AliMUONData* data) | |
232 | { | |
233 | if ( !fTriggerEfficiency ) return; | |
234 | ||
235 | AliMUONDigit* correspondingDigit = FindCorrespondingDigit(digit,data); | |
236 | ||
a0dc51a6 | 237 | if(!correspondingDigit)return;//reject bad correspondences |
238 | ||
4ce497c4 | 239 | Int_t detElemId = digit.DetElemId(); |
240 | ||
241 | const AliMpVSegmentation* segment[2] = | |
242 | { | |
243 | Segmentation()->GetMpSegmentation(detElemId,digit.Cathode()), | |
244 | Segmentation()->GetMpSegmentation(detElemId,correspondingDigit->Cathode()) | |
245 | }; | |
246 | ||
247 | AliMpPad pad[2] = | |
248 | { | |
249 | segment[0]->PadByIndices(AliMpIntPair(digit.PadX(),digit.PadY()),kTRUE), | |
250 | segment[1]->PadByIndices(AliMpIntPair(correspondingDigit->PadX(),correspondingDigit->PadY()),kTRUE) | |
251 | }; | |
252 | ||
253 | Int_t ix(0); | |
254 | Int_t iy(1); | |
255 | ||
256 | if (digit.Cathode()==0) | |
257 | { | |
258 | ix=1; | |
259 | iy=0; | |
260 | } | |
261 | ||
262 | Float_t x = pad[ix].Position().X(); | |
263 | Float_t y = pad[iy].Position().Y(); | |
264 | if ( x==-1 && y==-1 ) | |
265 | { | |
266 | x=-9999.; | |
267 | y=-9999.; | |
268 | AliError(Form("Got an unknown position for a digit in DE %d at (ix,iy)=(%d,%d)", | |
269 | detElemId,pad[ix].GetIndices().GetFirst(),pad[iy].GetIndices().GetSecond())); | |
270 | } | |
271 | Float_t x0 = segment[0]->Dimensions().X(); | |
272 | Float_t y0 = segment[1]->Dimensions().Y(); | |
273 | TVector2 newCoord = fTriggerEfficiency->ChangeReferenceFrame(x, y, x0, y0); | |
274 | ||
275 | Bool_t isTrig[2]; | |
276 | fTriggerEfficiency->IsTriggered(detElemId, newCoord.Px(), newCoord.Py(), | |
277 | isTrig[0], isTrig[1]); | |
278 | ||
279 | if (!isTrig[digit.Cathode()]) | |
280 | { | |
281 | digit.SetSignal(0); | |
282 | } | |
283 | ||
284 | if ( &digit != correspondingDigit ) | |
285 | { | |
286 | if (!isTrig[correspondingDigit->Cathode()]) | |
287 | { | |
288 | correspondingDigit->SetSignal(0); | |
289 | } | |
290 | } | |
291 | } | |
292 | ||
92aeef15 | 293 | //_____________________________________________________________________________ |
294 | void | |
295 | AliMUONDigitizerV3::ApplyResponse() | |
296 | { | |
05314992 | 297 | // |
298 | // Loop over all chamber digits, and apply the response to them | |
299 | // Note that this method may remove digits. | |
300 | // | |
4ce497c4 | 301 | const Bool_t kAddNoise = kTRUE; |
302 | ||
92aeef15 | 303 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) |
4ce497c4 | 304 | { |
92aeef15 | 305 | TClonesArray* digits = fOutputData->Digits(ich); |
306 | Int_t n = digits->GetEntriesFast(); | |
4ce497c4 | 307 | Bool_t trackingChamber = ( ich < AliMUONConstants::NTrackingCh() ); |
92aeef15 | 308 | for ( Int_t i = 0; i < n; ++i ) |
309 | { | |
310 | AliMUONDigit* d = static_cast<AliMUONDigit*>(digits->UncheckedAt(i)); | |
4ce497c4 | 311 | if ( trackingChamber ) |
312 | { | |
313 | ApplyResponseToTrackerDigit(*d,kAddNoise); | |
314 | } | |
315 | else | |
316 | { | |
317 | ApplyResponseToTriggerDigit(*d,fOutputData); | |
318 | } | |
92aeef15 | 319 | if ( d->Signal() <= 0 ) |
320 | { | |
321 | digits->RemoveAt(i); | |
322 | } | |
323 | } | |
05314992 | 324 | digits->Compress(); |
92aeef15 | 325 | } |
4ce497c4 | 326 | |
327 | // The version below, using iterator, does not yet work (as the iterator | |
328 | // assumes it is reading digits from the tree, while in this case it's | |
329 | // writing...) | |
330 | // | |
331 | // AliMUONDigit* digit(0x0); | |
332 | // | |
333 | // // First loop on tracker digits | |
334 | // AliMUONDataIterator tracker(fOutputData,"D",AliMUONDataIterator::kTrackingChambers); | |
335 | // | |
336 | // while ( ( digit = static_cast<AliMUONDigit*>(tracker.Next()) ) ) | |
337 | // { | |
338 | // ApplyResponseToTrackerDigit(*digit); | |
339 | // if ( digit->Signal() <= 0 ) | |
340 | // { | |
341 | // tracker.Remove(); | |
342 | // } | |
343 | // | |
344 | // } | |
345 | // | |
346 | // // Then loop on trigger digits | |
347 | // AliMUONDataIterator trigger(fOutputData,"D",AliMUONDataIterator::kTriggerChambers); | |
348 | // | |
349 | // while ( ( digit = static_cast<AliMUONDigit*>(trigger.Next()) ) ) | |
350 | // { | |
351 | // ApplyResponseToTriggerDigit(*digit,fOutputData); | |
352 | // if ( digit->Signal() <= 0 ) | |
353 | // { | |
354 | // trigger.Remove(); | |
355 | // } | |
356 | // } | |
92aeef15 | 357 | } |
358 | ||
359 | //_____________________________________________________________________________ | |
360 | void | |
361 | AliMUONDigitizerV3::AddOrUpdateDigit(TClonesArray& array, | |
362 | const AliMUONDigit& digit) | |
363 | { | |
05314992 | 364 | // |
365 | // Add or update a digit, depending on whether there's already a digit | |
366 | // for the corresponding channel. | |
367 | // | |
92aeef15 | 368 | Int_t ix = FindDigitIndex(array,digit); |
369 | ||
370 | if (ix>=0) | |
371 | { | |
372 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(ix)); | |
373 | Bool_t ok = MergeDigits(digit,*d); | |
374 | if (!ok) | |
375 | { | |
376 | AliError("Digits are not mergeable !"); | |
377 | } | |
92aeef15 | 378 | } |
379 | else | |
380 | { | |
381 | ix = array.GetLast() + 1; | |
382 | new(array[ix]) AliMUONDigit(digit); | |
383 | } | |
384 | ||
385 | } | |
386 | ||
387 | //_____________________________________________________________________________ | |
388 | void | |
389 | AliMUONDigitizerV3::Exec(Option_t*) | |
390 | { | |
05314992 | 391 | // |
392 | // Main method. | |
393 | // We first loop over input files, and merge the sdigits we found there. | |
4ce497c4 | 394 | // Second, we digitize all the resulting sdigits |
395 | // Then we generate noise-only digits (for tracker only) | |
05314992 | 396 | // And we finally generate the trigger outputs. |
397 | // | |
4ce497c4 | 398 | |
92aeef15 | 399 | AliDebug(1, "Running digitizer."); |
400 | ||
401 | if ( fManager->GetNinputs() == 0 ) | |
402 | { | |
403 | AliWarning("No input set. Nothing to do."); | |
404 | return; | |
405 | } | |
406 | ||
407 | if ( !fIsInitialized ) | |
408 | { | |
409 | AliError("Not initialized. Cannot perform the work. Sorry"); | |
410 | return; | |
411 | } | |
412 | ||
4ce497c4 | 413 | fExecTimer.Start(kFALSE); |
414 | ||
92aeef15 | 415 | Int_t nInputFiles = fManager->GetNinputs(); |
416 | ||
417 | if ( fOutputData->TreeD() == 0x0 ) | |
418 | { | |
419 | AliDebug(1,"Calling MakeDigitsContainer"); | |
420 | fOutputData->GetLoader()->MakeDigitsContainer(); | |
421 | } | |
422 | fOutputData->MakeBranch("D,GLT"); | |
423 | fOutputData->SetTreeAddress("D,GLT"); | |
424 | ||
425 | // Loop over all the input files, and merge the sdigits found in those | |
426 | // files. | |
427 | for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile ) | |
428 | { | |
429 | AliMUONData* inputData = GetDataAccess(fManager->GetInputFolderName(iFile)); | |
430 | if (!inputData) | |
431 | { | |
432 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
433 | } | |
05314992 | 434 | |
92aeef15 | 435 | inputData->GetLoader()->LoadSDigits("READ"); |
92aeef15 | 436 | inputData->SetTreeAddress("S"); |
437 | inputData->GetSDigits(); | |
05314992 | 438 | |
439 | MergeWithSDigits(*fOutputData,*inputData,fManager->GetMask(iFile)); | |
440 | ||
92aeef15 | 441 | inputData->ResetSDigits(); |
442 | inputData->GetLoader()->UnloadSDigits(); | |
443 | delete inputData; | |
444 | } | |
445 | ||
446 | // At this point, we do have digit arrays (one per chamber) which contains | |
447 | // the merging of all the sdigits of the input file(s). | |
448 | // We now massage them to apply the detector response, i.e. this | |
449 | // is here that we do the "digitization" work. | |
450 | ||
451 | ApplyResponse(); | |
4ce497c4 | 452 | |
453 | if ( fGenerateNoisyDigits ) | |
454 | { | |
455 | // Generate noise-only digits for tracker. | |
456 | GenerateNoisyDigits(); | |
457 | } | |
458 | ||
92aeef15 | 459 | // We generate the global and local trigger decisions. |
460 | fTriggerProcessor->ExecuteTask(); | |
461 | ||
462 | // Fill the output treeD | |
463 | fOutputData->Fill("D,GLT"); | |
464 | ||
465 | // Write to the output tree(D). | |
466 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
467 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
468 | // the 3 branches. | |
469 | fOutputData->GetLoader()->WriteDigits("OVERWRITE"); | |
470 | ||
471 | // Finally, we clean up after ourselves. | |
472 | fOutputData->ResetDigits(); | |
473 | fOutputData->ResetTrigger(); | |
474 | fOutputData->GetLoader()->UnloadDigits(); | |
4ce497c4 | 475 | |
476 | fExecTimer.Stop(); | |
92aeef15 | 477 | } |
478 | ||
4ce497c4 | 479 | //_____________________________________________________________________________ |
480 | AliMUONDigit* | |
481 | AliMUONDigitizerV3::FindCorrespondingDigit(AliMUONDigit& digit, | |
85fec35d | 482 | AliMUONData* data) const |
4ce497c4 | 483 | { |
a0dc51a6 | 484 | AliMUONDataIterator it(data,"D",AliMUONDataIterator::kTriggerChambers); |
4ce497c4 | 485 | AliMUONDigit* cd; |
a0dc51a6 | 486 | |
487 | for(;;){ | |
488 | cd = static_cast<AliMUONDigit*>(it.Next()); | |
489 | if(!cd)continue; | |
490 | if (cd->DetElemId() == digit.DetElemId() && | |
491 | cd->PadX() == digit.PadX() && | |
492 | cd->PadY() == digit.PadY() && | |
493 | cd->Cathode() == digit.Cathode()){ | |
494 | break; | |
495 | } | |
496 | } | |
497 | //The corresponding digit is searched only forward in the AliMUONData. | |
498 | //In this way when the first digit of the couple is given, the second digit is found and the efficiency is applied to both. | |
499 | //Afterwards, when the second digit of the couple is given the first one is not found and hence efficiency is not applied again | |
4ce497c4 | 500 | |
501 | while ( ( cd = static_cast<AliMUONDigit*>(it.Next()) ) ) | |
502 | { | |
a0dc51a6 | 503 | if(!cd)continue;//avoid problems when 1 digit is removed |
4ce497c4 | 504 | if ( cd->DetElemId() == digit.DetElemId() && |
505 | cd->Hit() == digit.Hit() && | |
506 | cd->Cathode() != digit.Cathode() ) | |
507 | { | |
508 | return cd; | |
509 | } | |
510 | } | |
511 | return 0x0; | |
512 | } | |
513 | ||
514 | ||
92aeef15 | 515 | //_____________________________________________________________________________ |
516 | Int_t | |
4ce497c4 | 517 | AliMUONDigitizerV3::FindDigitIndex(TClonesArray& array, |
518 | const AliMUONDigit& digit) const | |
92aeef15 | 519 | { |
05314992 | 520 | // |
521 | // Return the index of digit within array, if that digit is there, | |
522 | // otherwise returns -1 | |
523 | // | |
92aeef15 | 524 | // FIXME: this is of course not the best implementation you can think of. |
05314992 | 525 | // Reconsider the use of hit/digit map... ? (but be sure it's needed!) |
526 | // | |
4ce497c4 | 527 | |
528 | fFindDigitIndexTimer.Start(kFALSE); | |
529 | ||
92aeef15 | 530 | Int_t n = array.GetEntriesFast(); |
531 | for ( Int_t i = 0; i < n; ++i ) | |
532 | { | |
533 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(i)); | |
534 | if ( d->DetElemId() == digit.DetElemId() && | |
535 | d->PadX() == digit.PadX() && | |
536 | d->PadY() == digit.PadY() && | |
537 | d->Cathode() == digit.Cathode() ) | |
538 | { | |
4ce497c4 | 539 | fFindDigitIndexTimer.Stop(); |
92aeef15 | 540 | return i; |
541 | } | |
542 | } | |
4ce497c4 | 543 | fFindDigitIndexTimer.Stop(); |
92aeef15 | 544 | return -1; |
545 | } | |
546 | ||
4ce497c4 | 547 | //_____________________________________________________________________________ |
548 | void | |
549 | AliMUONDigitizerV3::GenerateNoisyDigits() | |
550 | { | |
551 | // | |
552 | // According to a given probability, generate digits that | |
553 | // have a signal above the noise cut (ped+n*sigma_ped), i.e. digits | |
554 | // that are "only noise". | |
555 | // | |
556 | ||
557 | if ( !fNoiseFunction ) | |
558 | { | |
559 | fNoiseFunction = new TF1("AliMUONDigitizerV3::fNoiseFunction","gaus", | |
560 | fgkNSigmas,fgkNSigmas*10); | |
561 | ||
562 | fNoiseFunction->SetParameters(1,0,1); | |
563 | } | |
564 | ||
565 | fGenerateNoisyDigitsTimer.Start(kFALSE); | |
566 | ||
567 | for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i ) | |
568 | { | |
569 | AliMpDEIterator it; | |
570 | ||
571 | it.First(i); | |
572 | ||
573 | while ( !it.IsDone() ) | |
574 | { | |
575 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
576 | { | |
577 | GenerateNoisyDigitsForOneCathode(it.CurrentDE(),cathode); | |
578 | } | |
579 | it.Next(); | |
580 | } | |
581 | } | |
582 | ||
583 | fGenerateNoisyDigitsTimer.Stop(); | |
584 | } | |
585 | ||
586 | //_____________________________________________________________________________ | |
587 | void | |
588 | AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(Int_t detElemId, Int_t cathode) | |
589 | { | |
590 | // | |
591 | // Generate noise-only digits for one cathode of one detection element. | |
592 | // Called by GenerateNoisyDigits() | |
593 | // | |
594 | ||
595 | TClonesArray* digits = fOutputData->Digits(detElemId/100-1); | |
596 | ||
597 | const AliMpVSegmentation* seg = Segmentation()->GetMpSegmentation(detElemId,cathode); | |
598 | Int_t nofPads = seg->NofPads(); | |
599 | ||
600 | Int_t maxIx = seg->MaxPadIndexX(); | |
601 | Int_t maxIy = seg->MaxPadIndexY(); | |
602 | ||
cdea095e | 603 | static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgkNSigmas/TMath::Sqrt(2.0)) / 2. ; |
4ce497c4 | 604 | |
84aac932 | 605 | Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads); |
4ce497c4 | 606 | if ( !nofNoisyPads ) return; |
607 | ||
608 | nofNoisyPads = | |
609 | TMath::Nint(gRandom->Gaus(nofNoisyPads, | |
610 | nofNoisyPads/TMath::Sqrt(nofNoisyPads))); | |
611 | ||
612 | AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads)); | |
613 | ||
614 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) | |
615 | { | |
616 | Int_t ix(-1); | |
617 | Int_t iy(-1); | |
618 | do { | |
619 | ix = gRandom->Integer(maxIx+1); | |
620 | iy = gRandom->Integer(maxIy+1); | |
621 | } while ( !seg->HasPad(AliMpIntPair(ix,iy)) ); | |
622 | AliMUONDigit d; | |
623 | d.SetDetElemId(detElemId); | |
624 | d.SetCathode(cathode); | |
625 | d.SetPadX(ix); | |
626 | d.SetPadY(iy); | |
627 | if ( FindDigitIndex(*digits,d) >= 0 ) | |
628 | { | |
629 | // this digit is already there, and not noise-only, we simply skip it | |
630 | continue; | |
631 | } | |
632 | AliMpPad pad = seg->PadByIndices(AliMpIntPair(ix,iy)); | |
633 | Int_t manuId = pad.GetLocation().GetFirst(); | |
634 | Int_t manuChannel = pad.GetLocation().GetSecond(); | |
635 | ||
636 | d.SetElectronics(manuId,manuChannel); | |
637 | ||
638 | AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId); | |
639 | ||
640 | Float_t pedestalMean = pedestals->ValueAsFloat(manuChannel,0); | |
641 | Float_t pedestalSigma = pedestals->ValueAsFloat(manuChannel,1); | |
642 | ||
643 | Double_t ped = fNoiseFunction->GetRandom()*pedestalSigma; | |
59b91539 | 644 | |
4ce497c4 | 645 | d.SetSignal(TMath::Nint(ped+pedestalMean+0.5)); |
59b91539 | 646 | d.SetPhysicsSignal(0); |
4ce497c4 | 647 | d.NoiseOnly(kTRUE); |
648 | AliDebug(3,Form("Adding a pure noise digit :")); | |
649 | StdoutToAliDebug(3,cout << "Before Response: " << endl; | |
650 | d.Print();); | |
651 | ApplyResponseToTrackerDigit(d,kFALSE); | |
652 | if ( d.Signal() > 0 ) | |
653 | { | |
654 | AddOrUpdateDigit(*digits,d); | |
655 | } | |
656 | else | |
657 | { | |
658 | AliError("Pure noise below threshold. This should not happen. Not adding " | |
659 | "this digit."); | |
660 | } | |
661 | StdoutToAliDebug(3,cout << "After Response: " << endl; | |
662 | d.Print();); | |
663 | } | |
664 | } | |
665 | ||
92aeef15 | 666 | //_____________________________________________________________________________ |
667 | AliMUONData* | |
668 | AliMUONDigitizerV3::GetDataAccess(const TString& folderName) | |
669 | { | |
05314992 | 670 | // |
671 | // Create an AliMUONData to deal with data found in folderName. | |
672 | // | |
92aeef15 | 673 | AliDebug(1,Form("Getting access to folder %s",folderName.Data())); |
674 | AliRunLoader* runLoader = AliRunLoader::GetRunLoader(folderName); | |
675 | if (!runLoader) | |
676 | { | |
677 | AliError(Form("Could not get RunLoader from folder %s",folderName.Data())); | |
678 | return 0x0; | |
679 | } | |
680 | AliLoader* loader = static_cast<AliLoader*>(runLoader->GetLoader("MUONLoader")); | |
681 | if (!loader) | |
682 | { | |
683 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
684 | return 0x0; | |
685 | } | |
686 | AliMUONData* data = new AliMUONData(loader,"MUON","MUONDataForDigitOutput"); | |
687 | AliDebug(1,Form("AliMUONData=%p loader=%p",data,loader)); | |
688 | return data; | |
689 | } | |
690 | ||
691 | //_____________________________________________________________________________ | |
692 | Bool_t | |
693 | AliMUONDigitizerV3::Init() | |
694 | { | |
05314992 | 695 | // |
696 | // Initialization of the TTask : | |
697 | // a) set the outputData pointer | |
698 | // b) create the calibrationData, according to run number | |
699 | // c) create the trigger processing task | |
700 | // | |
92aeef15 | 701 | AliDebug(1,""); |
702 | ||
703 | if ( fIsInitialized ) | |
704 | { | |
705 | AliError("Object already initialized."); | |
706 | return kFALSE; | |
707 | } | |
708 | ||
709 | if (!fManager) | |
710 | { | |
711 | AliError("fManager is null !"); | |
712 | return kFALSE; | |
713 | } | |
714 | ||
715 | fOutputData = GetDataAccess(fManager->GetOutputFolderName()); | |
716 | if (!fOutputData) | |
717 | { | |
718 | AliError("Can not perform digitization. I'm sorry"); | |
719 | return kFALSE; | |
720 | } | |
721 | AliDebug(1,Form("fOutputData=%p",fOutputData)); | |
722 | ||
723 | AliRunLoader* runLoader = fOutputData->GetLoader()->GetRunLoader(); | |
724 | AliRun* galice = runLoader->GetAliRun(); | |
725 | Int_t runnumber = galice->GetRunNumber(); | |
726 | ||
727 | fCalibrationData = new AliMUONCalibrationData(runnumber); | |
728 | ||
729 | switch (fTriggerCodeVersion) | |
730 | { | |
731 | case kTriggerDecision: | |
732 | fTriggerProcessor = new AliMUONTriggerDecisionV1(fOutputData); | |
733 | break; | |
734 | case kTriggerElectronics: | |
4ce497c4 | 735 | fTriggerProcessor = new AliMUONTriggerElectronics(fOutputData,fCalibrationData); |
92aeef15 | 736 | break; |
737 | default: | |
738 | AliFatal("Unknown trigger processor type"); | |
739 | break; | |
740 | } | |
4f8a3d8b | 741 | AliDebug(1,Form("Using the following trigger code %s - %s", |
742 | fTriggerProcessor->GetName(),fTriggerProcessor->GetTitle())); | |
4ce497c4 | 743 | |
744 | if ( fUseTriggerEfficiency ) | |
745 | { | |
746 | fTriggerEfficiency = fCalibrationData->TriggerEfficiency(); | |
747 | if ( fTriggerEfficiency ) | |
748 | { | |
749 | AliInfo("Will apply trigger efficiency"); | |
750 | } | |
751 | else | |
752 | { | |
753 | AliError("I was requested to apply trigger efficiency, but I could " | |
754 | "not get it !"); | |
755 | } | |
756 | } | |
757 | ||
758 | if ( fGenerateNoisyDigits ) | |
759 | { | |
760 | AliInfo("Will generate noise-only digits for tracker"); | |
761 | } | |
762 | ||
92aeef15 | 763 | fIsInitialized = kTRUE; |
764 | return kTRUE; | |
765 | } | |
766 | ||
767 | //_____________________________________________________________________________ | |
768 | Bool_t | |
05314992 | 769 | AliMUONDigitizerV3::MergeDigits(const AliMUONDigit& src, |
770 | AliMUONDigit& srcAndDest) | |
92aeef15 | 771 | { |
05314992 | 772 | // |
773 | // Merge 2 digits (src and srcAndDest) into srcAndDest. | |
774 | // | |
92aeef15 | 775 | AliDebug(1,"Merging the following digits:"); |
05314992 | 776 | StdoutToAliDebug(1,src.Print("tracks");); |
777 | StdoutToAliDebug(1,srcAndDest.Print("tracks");); | |
92aeef15 | 778 | |
779 | Bool_t check = ( src.DetElemId() == srcAndDest.DetElemId() && | |
780 | src.PadX() == srcAndDest.PadX() && | |
781 | src.PadY() == srcAndDest.PadY() && | |
782 | src.Cathode() == srcAndDest.Cathode() ); | |
783 | if (!check) | |
784 | { | |
785 | return kFALSE; | |
786 | } | |
787 | ||
92aeef15 | 788 | srcAndDest.AddSignal(src.Signal()); |
789 | srcAndDest.AddPhysicsSignal(src.Physics()); | |
05314992 | 790 | for ( Int_t i = 0; i < src.Ntracks(); ++i ) |
791 | { | |
792 | srcAndDest.AddTrack(src.Track(i),src.TrackCharge(i)); | |
793 | } | |
794 | StdoutToAliDebug(1,cout << "result:"; srcAndDest.Print("tracks");); | |
92aeef15 | 795 | return kTRUE; |
796 | } | |
797 | ||
798 | //_____________________________________________________________________________ | |
799 | void | |
800 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONData& outputData, | |
05314992 | 801 | const AliMUONData& inputData, Int_t mask) |
92aeef15 | 802 | { |
05314992 | 803 | // |
804 | // Merge the sdigits in inputData with the digits already present in outputData | |
805 | // | |
92aeef15 | 806 | AliDebug(1,""); |
807 | ||
808 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) | |
809 | { | |
810 | TClonesArray* iDigits = inputData.SDigits(ich); | |
811 | TClonesArray* oDigits = outputData.Digits(ich); | |
812 | if (!iDigits) | |
813 | { | |
814 | AliError(Form("Could not get sdigits for ich=%d",ich)); | |
815 | return; | |
816 | } | |
817 | Int_t nSDigits = iDigits->GetEntriesFast(); | |
818 | for ( Int_t k = 0; k < nSDigits; ++k ) | |
819 | { | |
820 | AliMUONDigit* sdigit = static_cast<AliMUONDigit*>(iDigits->UncheckedAt(k)); | |
92aeef15 | 821 | if (!sdigit) |
822 | { | |
823 | AliError(Form("Could not get sdigit for ich=%d and k=%d",ich,k)); | |
824 | } | |
825 | else | |
826 | { | |
05314992 | 827 | // Update the track references using the mask. |
828 | // FIXME: this is dirty, for backward compatibility only. | |
829 | // Should re-design all this way of keeping track of MC information... | |
830 | if ( mask ) sdigit->PatchTracks(mask); | |
831 | // Then add or update the digit to the output. | |
92aeef15 | 832 | AddOrUpdateDigit(*oDigits,*sdigit); |
833 | } | |
834 | } | |
835 | } | |
836 | } |