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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" |
4ce497c4 | 28 | #include "AliMUONTriggerEfficiencyCells.h" |
4f8a3d8b | 29 | #include "AliMUONTriggerElectronics.h" |
05314992 | 30 | #include "AliMUONVCalibParam.h" |
4ce497c4 | 31 | #include "AliMpDEIterator.h" |
92aeef15 | 32 | #include "AliMpDEManager.h" |
4ce497c4 | 33 | #include "AliMpIntPair.h" |
34 | #include "AliMpPad.h" | |
92aeef15 | 35 | #include "AliMpStationType.h" |
4ce497c4 | 36 | #include "AliMpVSegmentation.h" |
66f4c572 | 37 | #include "AliMpDEManager.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 | Bool_t generateNoisyDigits) |
92aeef15 | 81 | : AliDigitizer(manager), |
92aeef15 | 82 | fIsInitialized(kFALSE), |
83 | fOutputData(0x0), | |
84 | fCalibrationData(0x0), | |
85 | fTriggerProcessor(0x0), | |
4ce497c4 | 86 | fTriggerEfficiency(0x0), |
ccea41d4 | 87 | fFindDigitIndexTimer(), |
88 | fGenerateNoisyDigitsTimer(), | |
89 | fExecTimer(), | |
4ce497c4 | 90 | fNoiseFunction(0x0), |
91 | fGenerateNoisyDigits(generateNoisyDigits) | |
92aeef15 | 92 | { |
05314992 | 93 | // |
94 | // Ctor. | |
95 | // | |
92aeef15 | 96 | AliDebug(1,Form("AliRunDigitizer=%p",fManager)); |
4ce497c4 | 97 | fGenerateNoisyDigitsTimer.Start(kTRUE); fGenerateNoisyDigitsTimer.Stop(); |
98 | fExecTimer.Start(kTRUE); fExecTimer.Stop(); | |
99 | fFindDigitIndexTimer.Start(kTRUE); fFindDigitIndexTimer.Stop(); | |
92aeef15 | 100 | } |
101 | ||
102 | //_____________________________________________________________________________ | |
103 | AliMUONDigitizerV3::~AliMUONDigitizerV3() | |
104 | { | |
05314992 | 105 | // |
106 | // Dtor. Note we're the owner of some pointers. | |
107 | // | |
92aeef15 | 108 | AliDebug(1,"dtor"); |
4ce497c4 | 109 | |
92aeef15 | 110 | delete fOutputData; |
111 | delete fCalibrationData; | |
112 | delete fTriggerProcessor; | |
4ce497c4 | 113 | delete fNoiseFunction; |
114 | ||
a7b01aa5 | 115 | AliDebug(1, Form("Execution time for FindDigitIndex() : R:%.2fs C:%.2fs", |
4ce497c4 | 116 | fFindDigitIndexTimer.RealTime(),fFindDigitIndexTimer.CpuTime())); |
117 | if ( fGenerateNoisyDigits ) | |
118 | { | |
a7b01aa5 | 119 | AliDebug(1, Form("Execution time for GenerateNoisyDigits() : R:%.2fs C:%.2fs", |
4ce497c4 | 120 | fGenerateNoisyDigitsTimer.RealTime(), |
121 | fGenerateNoisyDigitsTimer.CpuTime())); | |
122 | } | |
a7b01aa5 | 123 | AliDebug(1, Form("Execution time for Exec() : R:%.2fs C:%.2fs", |
4ce497c4 | 124 | fExecTimer.RealTime(),fExecTimer.CpuTime())); |
125 | ||
92aeef15 | 126 | } |
127 | ||
128 | //_____________________________________________________________________________ | |
129 | void | |
4ce497c4 | 130 | AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONDigit& digit, Bool_t addNoise) |
92aeef15 | 131 | { |
92aeef15 | 132 | // For tracking digits, starting from an ideal digit's charge, we : |
133 | // | |
4ce497c4 | 134 | // - add some noise (thus leading to a realistic charge), if requested to do so |
92aeef15 | 135 | // - divide by a gain (thus decalibrating the digit) |
136 | // - add a pedestal (thus decalibrating the digit) | |
05314992 | 137 | // - sets the signal to zero if below 3*sigma of the noise |
92aeef15 | 138 | // |
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 | { | |
209 | if ( !fTriggerEfficiency ) return; | |
210 | ||
211 | AliMUONDigit* correspondingDigit = FindCorrespondingDigit(digit,data); | |
212 | ||
a0dc51a6 | 213 | if(!correspondingDigit)return;//reject bad correspondences |
214 | ||
4ce497c4 | 215 | Int_t detElemId = digit.DetElemId(); |
216 | ||
217 | const AliMpVSegmentation* segment[2] = | |
218 | { | |
219 | Segmentation()->GetMpSegmentation(detElemId,digit.Cathode()), | |
220 | Segmentation()->GetMpSegmentation(detElemId,correspondingDigit->Cathode()) | |
221 | }; | |
222 | ||
223 | AliMpPad pad[2] = | |
224 | { | |
225 | segment[0]->PadByIndices(AliMpIntPair(digit.PadX(),digit.PadY()),kTRUE), | |
226 | segment[1]->PadByIndices(AliMpIntPair(correspondingDigit->PadX(),correspondingDigit->PadY()),kTRUE) | |
227 | }; | |
228 | ||
229 | Int_t ix(0); | |
230 | Int_t iy(1); | |
231 | ||
232 | if (digit.Cathode()==0) | |
233 | { | |
234 | ix=1; | |
235 | iy=0; | |
236 | } | |
237 | ||
238 | Float_t x = pad[ix].Position().X(); | |
239 | Float_t y = pad[iy].Position().Y(); | |
240 | if ( x==-1 && y==-1 ) | |
241 | { | |
242 | x=-9999.; | |
243 | y=-9999.; | |
244 | AliError(Form("Got an unknown position for a digit in DE %d at (ix,iy)=(%d,%d)", | |
245 | detElemId,pad[ix].GetIndices().GetFirst(),pad[iy].GetIndices().GetSecond())); | |
246 | } | |
247 | Float_t x0 = segment[0]->Dimensions().X(); | |
248 | Float_t y0 = segment[1]->Dimensions().Y(); | |
249 | TVector2 newCoord = fTriggerEfficiency->ChangeReferenceFrame(x, y, x0, y0); | |
250 | ||
251 | Bool_t isTrig[2]; | |
252 | fTriggerEfficiency->IsTriggered(detElemId, newCoord.Px(), newCoord.Py(), | |
253 | isTrig[0], isTrig[1]); | |
254 | ||
255 | if (!isTrig[digit.Cathode()]) | |
256 | { | |
257 | digit.SetSignal(0); | |
258 | } | |
259 | ||
260 | if ( &digit != correspondingDigit ) | |
261 | { | |
262 | if (!isTrig[correspondingDigit->Cathode()]) | |
263 | { | |
264 | correspondingDigit->SetSignal(0); | |
265 | } | |
266 | } | |
267 | } | |
268 | ||
92aeef15 | 269 | //_____________________________________________________________________________ |
270 | void | |
271 | AliMUONDigitizerV3::ApplyResponse() | |
272 | { | |
05314992 | 273 | // |
274 | // Loop over all chamber digits, and apply the response to them | |
275 | // Note that this method may remove digits. | |
276 | // | |
4ce497c4 | 277 | const Bool_t kAddNoise = kTRUE; |
278 | ||
92aeef15 | 279 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) |
4ce497c4 | 280 | { |
92aeef15 | 281 | TClonesArray* digits = fOutputData->Digits(ich); |
282 | Int_t n = digits->GetEntriesFast(); | |
4ce497c4 | 283 | Bool_t trackingChamber = ( ich < AliMUONConstants::NTrackingCh() ); |
92aeef15 | 284 | for ( Int_t i = 0; i < n; ++i ) |
285 | { | |
286 | AliMUONDigit* d = static_cast<AliMUONDigit*>(digits->UncheckedAt(i)); | |
4ce497c4 | 287 | if ( trackingChamber ) |
288 | { | |
289 | ApplyResponseToTrackerDigit(*d,kAddNoise); | |
290 | } | |
291 | else | |
292 | { | |
293 | ApplyResponseToTriggerDigit(*d,fOutputData); | |
294 | } | |
92aeef15 | 295 | if ( d->Signal() <= 0 ) |
296 | { | |
297 | digits->RemoveAt(i); | |
298 | } | |
299 | } | |
05314992 | 300 | digits->Compress(); |
92aeef15 | 301 | } |
4ce497c4 | 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 | // } | |
92aeef15 | 333 | } |
334 | ||
335 | //_____________________________________________________________________________ | |
336 | void | |
337 | AliMUONDigitizerV3::AddOrUpdateDigit(TClonesArray& array, | |
338 | const AliMUONDigit& digit) | |
339 | { | |
05314992 | 340 | // |
341 | // Add or update a digit, depending on whether there's already a digit | |
342 | // for the corresponding channel. | |
343 | // | |
92aeef15 | 344 | Int_t ix = FindDigitIndex(array,digit); |
345 | ||
346 | if (ix>=0) | |
347 | { | |
348 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(ix)); | |
349 | Bool_t ok = MergeDigits(digit,*d); | |
350 | if (!ok) | |
351 | { | |
352 | AliError("Digits are not mergeable !"); | |
353 | } | |
92aeef15 | 354 | } |
355 | else | |
356 | { | |
357 | ix = array.GetLast() + 1; | |
358 | new(array[ix]) AliMUONDigit(digit); | |
359 | } | |
360 | ||
361 | } | |
362 | ||
363 | //_____________________________________________________________________________ | |
364 | void | |
365 | AliMUONDigitizerV3::Exec(Option_t*) | |
366 | { | |
05314992 | 367 | // |
368 | // Main method. | |
369 | // We first loop over input files, and merge the sdigits we found there. | |
4ce497c4 | 370 | // Second, we digitize all the resulting sdigits |
371 | // Then we generate noise-only digits (for tracker only) | |
05314992 | 372 | // And we finally generate the trigger outputs. |
373 | // | |
4ce497c4 | 374 | |
92aeef15 | 375 | AliDebug(1, "Running digitizer."); |
376 | ||
377 | if ( fManager->GetNinputs() == 0 ) | |
378 | { | |
379 | AliWarning("No input set. Nothing to do."); | |
380 | return; | |
381 | } | |
382 | ||
383 | if ( !fIsInitialized ) | |
384 | { | |
385 | AliError("Not initialized. Cannot perform the work. Sorry"); | |
386 | return; | |
387 | } | |
388 | ||
4ce497c4 | 389 | fExecTimer.Start(kFALSE); |
390 | ||
92aeef15 | 391 | Int_t nInputFiles = fManager->GetNinputs(); |
392 | ||
393 | if ( fOutputData->TreeD() == 0x0 ) | |
394 | { | |
395 | AliDebug(1,"Calling MakeDigitsContainer"); | |
396 | fOutputData->GetLoader()->MakeDigitsContainer(); | |
397 | } | |
398 | fOutputData->MakeBranch("D,GLT"); | |
399 | fOutputData->SetTreeAddress("D,GLT"); | |
400 | ||
401 | // Loop over all the input files, and merge the sdigits found in those | |
402 | // files. | |
403 | for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile ) | |
404 | { | |
405 | AliMUONData* inputData = GetDataAccess(fManager->GetInputFolderName(iFile)); | |
406 | if (!inputData) | |
407 | { | |
408 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
409 | } | |
05314992 | 410 | |
92aeef15 | 411 | inputData->GetLoader()->LoadSDigits("READ"); |
92aeef15 | 412 | inputData->SetTreeAddress("S"); |
413 | inputData->GetSDigits(); | |
05314992 | 414 | |
415 | MergeWithSDigits(*fOutputData,*inputData,fManager->GetMask(iFile)); | |
416 | ||
92aeef15 | 417 | inputData->ResetSDigits(); |
418 | inputData->GetLoader()->UnloadSDigits(); | |
419 | delete inputData; | |
420 | } | |
421 | ||
422 | // At this point, we do have digit arrays (one per chamber) which contains | |
423 | // the merging of all the sdigits of the input file(s). | |
424 | // We now massage them to apply the detector response, i.e. this | |
425 | // is here that we do the "digitization" work. | |
426 | ||
427 | ApplyResponse(); | |
4ce497c4 | 428 | |
429 | if ( fGenerateNoisyDigits ) | |
430 | { | |
431 | // Generate noise-only digits for tracker. | |
432 | GenerateNoisyDigits(); | |
433 | } | |
434 | ||
92aeef15 | 435 | // We generate the global and local trigger decisions. |
436 | fTriggerProcessor->ExecuteTask(); | |
437 | ||
438 | // Fill the output treeD | |
439 | fOutputData->Fill("D,GLT"); | |
440 | ||
441 | // Write to the output tree(D). | |
442 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
443 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
444 | // the 3 branches. | |
445 | fOutputData->GetLoader()->WriteDigits("OVERWRITE"); | |
446 | ||
447 | // Finally, we clean up after ourselves. | |
448 | fOutputData->ResetDigits(); | |
449 | fOutputData->ResetTrigger(); | |
450 | fOutputData->GetLoader()->UnloadDigits(); | |
4ce497c4 | 451 | |
452 | fExecTimer.Stop(); | |
92aeef15 | 453 | } |
454 | ||
4ce497c4 | 455 | //_____________________________________________________________________________ |
456 | AliMUONDigit* | |
457 | AliMUONDigitizerV3::FindCorrespondingDigit(AliMUONDigit& digit, | |
85fec35d | 458 | AliMUONData* data) const |
4ce497c4 | 459 | { |
a0dc51a6 | 460 | AliMUONDataIterator it(data,"D",AliMUONDataIterator::kTriggerChambers); |
4ce497c4 | 461 | AliMUONDigit* cd; |
a0dc51a6 | 462 | |
463 | for(;;){ | |
464 | cd = static_cast<AliMUONDigit*>(it.Next()); | |
465 | if(!cd)continue; | |
466 | if (cd->DetElemId() == digit.DetElemId() && | |
467 | cd->PadX() == digit.PadX() && | |
468 | cd->PadY() == digit.PadY() && | |
469 | cd->Cathode() == digit.Cathode()){ | |
470 | break; | |
471 | } | |
472 | } | |
473 | //The corresponding digit is searched only forward in the AliMUONData. | |
474 | //In this way when the first digit of the couple is given, the second digit is found and the efficiency is applied to both. | |
475 | //Afterwards, when the second digit of the couple is given the first one is not found and hence efficiency is not applied again | |
4ce497c4 | 476 | |
477 | while ( ( cd = static_cast<AliMUONDigit*>(it.Next()) ) ) | |
478 | { | |
a0dc51a6 | 479 | if(!cd)continue;//avoid problems when 1 digit is removed |
4ce497c4 | 480 | if ( cd->DetElemId() == digit.DetElemId() && |
481 | cd->Hit() == digit.Hit() && | |
482 | cd->Cathode() != digit.Cathode() ) | |
483 | { | |
484 | return cd; | |
485 | } | |
486 | } | |
487 | return 0x0; | |
488 | } | |
489 | ||
490 | ||
92aeef15 | 491 | //_____________________________________________________________________________ |
492 | Int_t | |
4ce497c4 | 493 | AliMUONDigitizerV3::FindDigitIndex(TClonesArray& array, |
494 | const AliMUONDigit& digit) const | |
92aeef15 | 495 | { |
05314992 | 496 | // |
497 | // Return the index of digit within array, if that digit is there, | |
498 | // otherwise returns -1 | |
499 | // | |
92aeef15 | 500 | // FIXME: this is of course not the best implementation you can think of. |
05314992 | 501 | // Reconsider the use of hit/digit map... ? (but be sure it's needed!) |
502 | // | |
4ce497c4 | 503 | |
504 | fFindDigitIndexTimer.Start(kFALSE); | |
505 | ||
92aeef15 | 506 | Int_t n = array.GetEntriesFast(); |
507 | for ( Int_t i = 0; i < n; ++i ) | |
508 | { | |
509 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(i)); | |
510 | if ( d->DetElemId() == digit.DetElemId() && | |
511 | d->PadX() == digit.PadX() && | |
512 | d->PadY() == digit.PadY() && | |
513 | d->Cathode() == digit.Cathode() ) | |
514 | { | |
4ce497c4 | 515 | fFindDigitIndexTimer.Stop(); |
92aeef15 | 516 | return i; |
517 | } | |
518 | } | |
4ce497c4 | 519 | fFindDigitIndexTimer.Stop(); |
92aeef15 | 520 | return -1; |
521 | } | |
522 | ||
4ce497c4 | 523 | //_____________________________________________________________________________ |
524 | void | |
525 | AliMUONDigitizerV3::GenerateNoisyDigits() | |
526 | { | |
527 | // | |
528 | // According to a given probability, generate digits that | |
529 | // have a signal above the noise cut (ped+n*sigma_ped), i.e. digits | |
530 | // that are "only noise". | |
531 | // | |
532 | ||
533 | if ( !fNoiseFunction ) | |
534 | { | |
535 | fNoiseFunction = new TF1("AliMUONDigitizerV3::fNoiseFunction","gaus", | |
536 | fgkNSigmas,fgkNSigmas*10); | |
537 | ||
538 | fNoiseFunction->SetParameters(1,0,1); | |
539 | } | |
540 | ||
541 | fGenerateNoisyDigitsTimer.Start(kFALSE); | |
542 | ||
543 | for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i ) | |
544 | { | |
545 | AliMpDEIterator it; | |
546 | ||
547 | it.First(i); | |
548 | ||
549 | while ( !it.IsDone() ) | |
550 | { | |
551 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
552 | { | |
553 | GenerateNoisyDigitsForOneCathode(it.CurrentDE(),cathode); | |
554 | } | |
555 | it.Next(); | |
556 | } | |
557 | } | |
558 | ||
559 | fGenerateNoisyDigitsTimer.Stop(); | |
560 | } | |
561 | ||
562 | //_____________________________________________________________________________ | |
563 | void | |
564 | AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(Int_t detElemId, Int_t cathode) | |
565 | { | |
566 | // | |
567 | // Generate noise-only digits for one cathode of one detection element. | |
568 | // Called by GenerateNoisyDigits() | |
569 | // | |
570 | ||
66f4c572 | 571 | Int_t chamberId = AliMpDEManager::GetChamberId(detElemId); |
572 | TClonesArray* digits = fOutputData->Digits(chamberId); | |
4ce497c4 | 573 | |
574 | const AliMpVSegmentation* seg = Segmentation()->GetMpSegmentation(detElemId,cathode); | |
575 | Int_t nofPads = seg->NofPads(); | |
576 | ||
577 | Int_t maxIx = seg->MaxPadIndexX(); | |
578 | Int_t maxIy = seg->MaxPadIndexY(); | |
579 | ||
cdea095e | 580 | static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgkNSigmas/TMath::Sqrt(2.0)) / 2. ; |
4ce497c4 | 581 | |
84aac932 | 582 | Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads); |
4ce497c4 | 583 | if ( !nofNoisyPads ) return; |
584 | ||
585 | nofNoisyPads = | |
586 | TMath::Nint(gRandom->Gaus(nofNoisyPads, | |
587 | nofNoisyPads/TMath::Sqrt(nofNoisyPads))); | |
588 | ||
589 | AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads)); | |
590 | ||
591 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) | |
592 | { | |
593 | Int_t ix(-1); | |
594 | Int_t iy(-1); | |
595 | do { | |
596 | ix = gRandom->Integer(maxIx+1); | |
597 | iy = gRandom->Integer(maxIy+1); | |
598 | } while ( !seg->HasPad(AliMpIntPair(ix,iy)) ); | |
599 | AliMUONDigit d; | |
600 | d.SetDetElemId(detElemId); | |
601 | d.SetCathode(cathode); | |
602 | d.SetPadX(ix); | |
603 | d.SetPadY(iy); | |
604 | if ( FindDigitIndex(*digits,d) >= 0 ) | |
605 | { | |
606 | // this digit is already there, and not noise-only, we simply skip it | |
607 | continue; | |
608 | } | |
609 | AliMpPad pad = seg->PadByIndices(AliMpIntPair(ix,iy)); | |
610 | Int_t manuId = pad.GetLocation().GetFirst(); | |
611 | Int_t manuChannel = pad.GetLocation().GetSecond(); | |
612 | ||
613 | d.SetElectronics(manuId,manuChannel); | |
614 | ||
615 | AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId); | |
616 | ||
617 | Float_t pedestalMean = pedestals->ValueAsFloat(manuChannel,0); | |
618 | Float_t pedestalSigma = pedestals->ValueAsFloat(manuChannel,1); | |
619 | ||
620 | Double_t ped = fNoiseFunction->GetRandom()*pedestalSigma; | |
59b91539 | 621 | |
4ce497c4 | 622 | d.SetSignal(TMath::Nint(ped+pedestalMean+0.5)); |
59b91539 | 623 | d.SetPhysicsSignal(0); |
4ce497c4 | 624 | d.NoiseOnly(kTRUE); |
625 | AliDebug(3,Form("Adding a pure noise digit :")); | |
626 | StdoutToAliDebug(3,cout << "Before Response: " << endl; | |
627 | d.Print();); | |
628 | ApplyResponseToTrackerDigit(d,kFALSE); | |
629 | if ( d.Signal() > 0 ) | |
630 | { | |
631 | AddOrUpdateDigit(*digits,d); | |
632 | } | |
633 | else | |
634 | { | |
635 | AliError("Pure noise below threshold. This should not happen. Not adding " | |
636 | "this digit."); | |
637 | } | |
638 | StdoutToAliDebug(3,cout << "After Response: " << endl; | |
639 | d.Print();); | |
640 | } | |
641 | } | |
642 | ||
92aeef15 | 643 | //_____________________________________________________________________________ |
644 | AliMUONData* | |
645 | AliMUONDigitizerV3::GetDataAccess(const TString& folderName) | |
646 | { | |
05314992 | 647 | // |
648 | // Create an AliMUONData to deal with data found in folderName. | |
649 | // | |
92aeef15 | 650 | AliDebug(1,Form("Getting access to folder %s",folderName.Data())); |
651 | AliRunLoader* runLoader = AliRunLoader::GetRunLoader(folderName); | |
652 | if (!runLoader) | |
653 | { | |
654 | AliError(Form("Could not get RunLoader from folder %s",folderName.Data())); | |
655 | return 0x0; | |
656 | } | |
657 | AliLoader* loader = static_cast<AliLoader*>(runLoader->GetLoader("MUONLoader")); | |
658 | if (!loader) | |
659 | { | |
660 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
661 | return 0x0; | |
662 | } | |
663 | AliMUONData* data = new AliMUONData(loader,"MUON","MUONDataForDigitOutput"); | |
664 | AliDebug(1,Form("AliMUONData=%p loader=%p",data,loader)); | |
665 | return data; | |
666 | } | |
667 | ||
668 | //_____________________________________________________________________________ | |
669 | Bool_t | |
670 | AliMUONDigitizerV3::Init() | |
671 | { | |
05314992 | 672 | // |
673 | // Initialization of the TTask : | |
674 | // a) set the outputData pointer | |
675 | // b) create the calibrationData, according to run number | |
676 | // c) create the trigger processing task | |
677 | // | |
92aeef15 | 678 | AliDebug(1,""); |
679 | ||
680 | if ( fIsInitialized ) | |
681 | { | |
682 | AliError("Object already initialized."); | |
683 | return kFALSE; | |
684 | } | |
685 | ||
686 | if (!fManager) | |
687 | { | |
688 | AliError("fManager is null !"); | |
689 | return kFALSE; | |
690 | } | |
691 | ||
692 | fOutputData = GetDataAccess(fManager->GetOutputFolderName()); | |
693 | if (!fOutputData) | |
694 | { | |
695 | AliError("Can not perform digitization. I'm sorry"); | |
696 | return kFALSE; | |
697 | } | |
698 | AliDebug(1,Form("fOutputData=%p",fOutputData)); | |
699 | ||
700 | AliRunLoader* runLoader = fOutputData->GetLoader()->GetRunLoader(); | |
701 | AliRun* galice = runLoader->GetAliRun(); | |
702 | Int_t runnumber = galice->GetRunNumber(); | |
703 | ||
704 | fCalibrationData = new AliMUONCalibrationData(runnumber); | |
705 | ||
eb5d708c | 706 | fTriggerProcessor = new AliMUONTriggerElectronics(fOutputData,fCalibrationData); |
4ce497c4 | 707 | |
afb3ccf0 | 708 | if ( muon()->GetTriggerEffCells() ) |
4ce497c4 | 709 | { |
710 | fTriggerEfficiency = fCalibrationData->TriggerEfficiency(); | |
711 | if ( fTriggerEfficiency ) | |
712 | { | |
a7b01aa5 | 713 | AliDebug(1, "Will apply trigger efficiency"); |
4ce497c4 | 714 | } |
715 | else | |
716 | { | |
717 | AliError("I was requested to apply trigger efficiency, but I could " | |
718 | "not get it !"); | |
719 | } | |
720 | } | |
721 | ||
722 | if ( fGenerateNoisyDigits ) | |
723 | { | |
a7b01aa5 | 724 | AliDebug(1, "Will generate noise-only digits for tracker"); |
4ce497c4 | 725 | } |
726 | ||
92aeef15 | 727 | fIsInitialized = kTRUE; |
728 | return kTRUE; | |
729 | } | |
730 | ||
731 | //_____________________________________________________________________________ | |
732 | Bool_t | |
05314992 | 733 | AliMUONDigitizerV3::MergeDigits(const AliMUONDigit& src, |
734 | AliMUONDigit& srcAndDest) | |
92aeef15 | 735 | { |
05314992 | 736 | // |
737 | // Merge 2 digits (src and srcAndDest) into srcAndDest. | |
738 | // | |
92aeef15 | 739 | AliDebug(1,"Merging the following digits:"); |
05314992 | 740 | StdoutToAliDebug(1,src.Print("tracks");); |
741 | StdoutToAliDebug(1,srcAndDest.Print("tracks");); | |
92aeef15 | 742 | |
743 | Bool_t check = ( src.DetElemId() == srcAndDest.DetElemId() && | |
744 | src.PadX() == srcAndDest.PadX() && | |
745 | src.PadY() == srcAndDest.PadY() && | |
746 | src.Cathode() == srcAndDest.Cathode() ); | |
747 | if (!check) | |
748 | { | |
749 | return kFALSE; | |
750 | } | |
751 | ||
92aeef15 | 752 | srcAndDest.AddSignal(src.Signal()); |
753 | srcAndDest.AddPhysicsSignal(src.Physics()); | |
05314992 | 754 | for ( Int_t i = 0; i < src.Ntracks(); ++i ) |
755 | { | |
756 | srcAndDest.AddTrack(src.Track(i),src.TrackCharge(i)); | |
757 | } | |
758 | StdoutToAliDebug(1,cout << "result:"; srcAndDest.Print("tracks");); | |
92aeef15 | 759 | return kTRUE; |
760 | } | |
761 | ||
762 | //_____________________________________________________________________________ | |
763 | void | |
764 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONData& outputData, | |
05314992 | 765 | const AliMUONData& inputData, Int_t mask) |
92aeef15 | 766 | { |
05314992 | 767 | // |
768 | // Merge the sdigits in inputData with the digits already present in outputData | |
769 | // | |
92aeef15 | 770 | AliDebug(1,""); |
771 | ||
772 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) | |
773 | { | |
774 | TClonesArray* iDigits = inputData.SDigits(ich); | |
775 | TClonesArray* oDigits = outputData.Digits(ich); | |
776 | if (!iDigits) | |
777 | { | |
778 | AliError(Form("Could not get sdigits for ich=%d",ich)); | |
779 | return; | |
780 | } | |
781 | Int_t nSDigits = iDigits->GetEntriesFast(); | |
782 | for ( Int_t k = 0; k < nSDigits; ++k ) | |
783 | { | |
784 | AliMUONDigit* sdigit = static_cast<AliMUONDigit*>(iDigits->UncheckedAt(k)); | |
92aeef15 | 785 | if (!sdigit) |
786 | { | |
787 | AliError(Form("Could not get sdigit for ich=%d and k=%d",ich,k)); | |
788 | } | |
789 | else | |
790 | { | |
05314992 | 791 | // Update the track references using the mask. |
792 | // FIXME: this is dirty, for backward compatibility only. | |
793 | // Should re-design all this way of keeping track of MC information... | |
794 | if ( mask ) sdigit->PatchTracks(mask); | |
795 | // Then add or update the digit to the output. | |
92aeef15 | 796 | AddOrUpdateDigit(*oDigits,*sdigit); |
797 | } | |
798 | } | |
799 | } | |
800 | } |