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[u/mrichter/AliRoot.git] / MUON / AliMUONDigitizerV3.cxx
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92aeef15 1/**************************************************************************
2* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3* *
4* Author: The ALICE Off-line Project. *
5* Contributors are mentioned in the code where appropriate. *
6* *
7* Permission to use, copy, modify and distribute this software and its *
8* documentation strictly for non-commercial purposes is hereby granted *
9* without fee, provided that the above copyright notice appears in all *
10* copies and that both the copyright notice and this permission notice *
11* appear in the supporting documentation. The authors make no claims *
12* about the suitability of this software for any purpose. It is *
13* provided "as is" without express or implied warranty. *
14**************************************************************************/
15
16// $Id$
17
9edefa04 18
92aeef15 19#include "AliMUONDigitizerV3.h"
20
4ce497c4 21#include "AliMUON.h"
92aeef15 22#include "AliMUONCalibrationData.h"
92aeef15 23#include "AliMUONConstants.h"
92aeef15 24#include "AliMUONDigit.h"
ad26d4f6 25#include "AliMUONLogger.h"
4f8a3d8b 26#include "AliMUONTriggerElectronics.h"
40e382ae 27#include "AliMUONTriggerStoreV1.h"
05314992 28#include "AliMUONVCalibParam.h"
40e382ae 29#include "AliMUONVDigitStore.h"
331a617a 30#include "AliMUONGeometryTransformer.h" //ADDED for trigger noise
31
88544f7e 32#include "AliMpCDB.h"
331a617a 33#include "AliMpSegmentation.h"
40e382ae 34#include "AliMpCathodType.h"
35#include "AliMpConstants.h"
4ce497c4 36#include "AliMpDEIterator.h"
92aeef15 37#include "AliMpDEManager.h"
4ce497c4 38#include "AliMpPad.h"
40e382ae 39#include "AliMpStationType.h"
4ce497c4 40#include "AliMpVSegmentation.h"
331a617a 41
42#include "AliCDBManager.h"
43#include "AliCodeTimer.h"
44#include "AliLog.h"
92aeef15 45#include "AliRun.h"
46#include "AliRunDigitizer.h"
47#include "AliRunLoader.h"
331a617a 48
866c3232 49#include <Riostream.h>
50#include <TF1.h>
40e382ae 51#include <TFile.h>
866c3232 52#include <TMath.h>
53#include <TRandom.h>
54#include <TString.h>
40e382ae 55#include <TSystem.h>
56
3d1463c8 57//-----------------------------------------------------------------------------
9265505b 58/// \class AliMUONDigitizerV3
4ce497c4 59/// The digitizer is performing the transformation to go from SDigits (digits
60/// w/o any electronic noise) to Digits (w/ electronic noise, and decalibration)
61///
62/// The decalibration is performed by doing the reverse operation of the
63/// calibration, that is we do (Signal+pedestal)/gain -> ADC
64///
65/// Note also that the digitizer takes care of merging sdigits that belongs
66/// to the same pad, either because we're merging several input sdigit files
67/// or with a single file because the sdigitizer does not merge sdigits itself
68/// (for performance reason mainly, and because anyway we know we have to do it
69/// here, at the digitization level).
70///
c4ee792d 71/// \author Laurent Aphecetche
3d1463c8 72//-----------------------------------------------------------------------------
4ce497c4 73
74namespace
75{
76 AliMUON* muon()
77 {
78 return static_cast<AliMUON*>(gAlice->GetModule("MUON"));
79 }
8c0b5e70 80
81 //ADDED for trigger noise
82 const AliMUONGeometryTransformer* GetTransformer()
83 {
84 return muon()->GetGeometryTransformer();
85 }
4ce497c4 86}
87
88const Double_t AliMUONDigitizerV3::fgkNSigmas=3;
89
9265505b 90/// \cond CLASSIMP
92aeef15 91ClassImp(AliMUONDigitizerV3)
9265505b 92/// \endcond
92aeef15 93
94//_____________________________________________________________________________
95AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager,
8c0b5e70 96 Int_t generateNoisyDigits)
92aeef15 97: AliDigitizer(manager),
92aeef15 98fIsInitialized(kFALSE),
92aeef15 99fCalibrationData(0x0),
100fTriggerProcessor(0x0),
8c0b5e70 101fNoiseFunctionTrig(0x0),
ec9acc85 102fGenerateNoisyDigits(generateNoisyDigits),
103fLogger(new AliMUONLogger(1000)),
40e382ae 104fTriggerStore(new AliMUONTriggerStoreV1),
105fDigitStore(0x0),
9ec6a948 106fOutputDigitStore(0x0),
107fInputDigitStore(0x0)
92aeef15 108{
9265505b 109 /// Ctor.
110
92aeef15 111 AliDebug(1,Form("AliRunDigitizer=%p",fManager));
ec9acc85 112
92aeef15 113}
114
115//_____________________________________________________________________________
116AliMUONDigitizerV3::~AliMUONDigitizerV3()
117{
9265505b 118 /// Dtor. Note we're the owner of some pointers.
119
92aeef15 120 AliDebug(1,"dtor");
4ce497c4 121
92c23b09 122 // delete fCalibrationData;
92aeef15 123 delete fTriggerProcessor;
8c0b5e70 124 delete fNoiseFunctionTrig;
40e382ae 125 delete fTriggerStore;
126 delete fDigitStore;
127 delete fOutputDigitStore;
9ec6a948 128 delete fInputDigitStore;
129
ad26d4f6 130 AliInfo("Summary of messages");
131 fLogger->Print();
4ce497c4 132
ad26d4f6 133 delete fLogger;
92aeef15 134}
135
136//_____________________________________________________________________________
137void
40e382ae 138AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONVDigit& digit, Bool_t addNoise)
92aeef15 139{
9265505b 140 /// For tracking digits, starting from an ideal digit's charge, we :
141 ///
cf27231a 142 /// - "divide" by a gain (thus decalibrating the digit)
9265505b 143 /// - add a pedestal (thus decalibrating the digit)
b74ca120 144 /// - add some electronics noise (thus leading to a realistic adc), if requested to do so
9265505b 145 /// - sets the signal to zero if below 3*sigma of the noise
59b91539 146
cf27231a 147 Float_t charge = digit.Charge();
148
149 // We set the charge to 0, as the only relevant piece of information
150 // after Digitization is the ADC value.
151 digit.SetCharge(0);
b74ca120 152
4ce497c4 153 Int_t detElemId = digit.DetElemId();
92aeef15 154 Int_t manuId = digit.ManuId();
92aeef15 155
4ce497c4 156 AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId);
92aeef15 157 if (!pedestal)
ad26d4f6 158 {
159 fLogger->Log(Form("%s:%d:Could not get pedestal for DE=%4d manuId=%4d. Disabling.",
160 __FILE__,__LINE__,
161 detElemId,manuId));
ad26d4f6 162 digit.SetADC(0);
163 return;
164 }
59b91539 165
627ba19f 166 Int_t manuChannel = digit.ManuChannel();
167
168 if ( pedestal->ValueAsFloat(manuChannel,0) == AliMUONVCalibParam::InvalidFloatValue() ||
169 pedestal->ValueAsFloat(manuChannel,1) == AliMUONVCalibParam::InvalidFloatValue() )
170 {
171 // protection against invalid pedestal value
172 digit.SetADC(0);
173 return;
174 }
175
4ce497c4 176 AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId);
92aeef15 177 if (!gain)
ad26d4f6 178 {
179 fLogger->Log(Form("%s:%d:Could not get gain for DE=%4d manuId=%4d. Disabling.",
180 __FILE__,__LINE__,
181 detElemId,manuId));
ad26d4f6 182 digit.SetADC(0);
183 return;
184 }
cf27231a 185
ec9acc85 186 Int_t adc = DecalibrateTrackerDigit(*pedestal,*gain,manuChannel,charge,addNoise,
187 digit.IsNoiseOnly());
59b91539 188
92aeef15 189 digit.SetADC(adc);
190}
191
192//_____________________________________________________________________________
193void
40e382ae 194AliMUONDigitizerV3::ApplyResponse(const AliMUONVDigitStore& store,
195 AliMUONVDigitStore& filteredStore)
92aeef15 196{
9265505b 197 /// Loop over all chamber digits, and apply the response to them
198 /// Note that this method may remove digits.
199
40e382ae 200 filteredStore.Clear();
201
4ce497c4 202 const Bool_t kAddNoise = kTRUE;
203
40e382ae 204 TIter next(store.CreateIterator());
205 AliMUONVDigit* digit;
206
207 while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) )
4ce497c4 208 {
40e382ae 209 AliMp::StationType stationType = AliMpDEManager::GetStationType(digit->DetElemId());
210
211 if ( stationType != AliMp::kStationTrigger )
92aeef15 212 {
40e382ae 213 ApplyResponseToTrackerDigit(*digit,kAddNoise);
92aeef15 214 }
7d7d22a6 215
cf27231a 216 if ( digit->ADC() > 0 || digit->Charge() > 0 )
40e382ae 217 {
218 filteredStore.Add(*digit,AliMUONVDigitStore::kIgnore);
92aeef15 219 }
92aeef15 220 }
40e382ae 221}
92aeef15 222
223//_____________________________________________________________________________
b74ca120 224Int_t
225AliMUONDigitizerV3::DecalibrateTrackerDigit(const AliMUONVCalibParam& pedestals,
226 const AliMUONVCalibParam& gains,
227 Int_t channel,
228 Float_t charge,
ec9acc85 229 Bool_t addNoise,
230 Bool_t noiseOnly)
b74ca120 231{
232 /// Decalibrate (i.e. go from charge to adc) a tracker digit, given its
233 /// pedestal and gain parameters.
234 /// Must insure before calling that channel is valid (i.e. between 0 and
235 /// pedestals or gains->GetSize()-1, but also corresponding to a valid channel
236 /// otherwise results are not predictible...)
237
238 static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC.
239
240 Float_t pedestalMean = pedestals.ValueAsFloat(channel,0);
241 Float_t pedestalSigma = pedestals.ValueAsFloat(channel,1);
242
ec9acc85 243 AliDebugClass(1,Form("DE %04d MANU %04d CH %02d PEDMEAN %7.2f PEDSIGMA %7.2f",
244 pedestals.ID0(),pedestals.ID1(),channel,pedestalMean,pedestalSigma));
245
b74ca120 246 Float_t a0 = gains.ValueAsFloat(channel,0);
247 Float_t a1 = gains.ValueAsFloat(channel,1);
248 Int_t thres = gains.ValueAsInt(channel,2);
249 Int_t qual = gains.ValueAsInt(channel,3);
250 if ( qual <= 0 ) return 0;
251
252 Float_t chargeThres = a0*thres;
253
254 Float_t padc(0); // (adc - ped) value
255
256 if ( charge <= chargeThres || TMath::Abs(a1) < 1E-12 )
257 {
258 // linear part only
259
260 if ( TMath::Abs(a0) > 1E-12 )
261 {
262 padc = charge/a0;
263 }
264 }
265 else
266 {
267 // linear + parabolic part
268 Double_t qt = chargeThres - charge;
269 Double_t delta = a0*a0-4*a1*qt;
270 if ( delta < 0 )
271 {
272 AliErrorClass(Form("delta=%e DE %d Manu %d Channel %d "
273 " charge %e a0 %e a1 %e thres %d ped %e pedsig %e",
274 delta,pedestals.ID0(),pedestals.ID1(),
275 channel, charge, a0, a1, thres, pedestalMean,
276 pedestalSigma));
277 }
278 else
279 {
280 delta = TMath::Sqrt(delta);
281
282 padc = ( ( -a0 + delta ) > 0 ? ( -a0 + delta ) : ( -a0 - delta ) );
283
284 padc /= 2*a1;
285
286 if ( padc < 0 )
287 {
288 if ( TMath::Abs(padc) > 1E-3)
289 {
290 // this is more than a precision problem : let's signal it !
291 AliErrorClass(Form("padc=%e DE %d Manu %d Channel %d "
292 " charge %e a0 %e a1 %e thres %d ped %e pedsig %e delta %e",
293 padc,pedestals.ID0(),pedestals.ID1(),
294 channel, charge, a0, a1, thres, pedestalMean,
295 pedestalSigma,delta));
296 }
297
298 // ok. consider we're just at thres, let it be zero.
299 padc = 0;
300 }
301
302 padc += thres;
303
304 }
305 }
306
307 Int_t adc(0);
308
ec9acc85 309 Float_t adcNoise = 0.0;
b74ca120 310
ec9acc85 311 if ( addNoise )
312 {
313 if ( noiseOnly )
314 {
315 adcNoise = NoiseFunction()->GetRandom()*pedestalSigma;
316 }
317 else
318 {
319 adcNoise = gRandom->Gaus(0.0,pedestalSigma);
320 }
321 }
b74ca120 322
ec9acc85 323 adc = TMath::Nint(padc + pedestalMean + adcNoise + 0.5);
324
325 if ( adc < TMath::Nint(pedestalMean + fgkNSigmas*pedestalSigma + 0.5) )
326 {
327 adc = 0;
b74ca120 328 }
329
330 // be sure we stick to 12 bits.
331 if ( adc > kMaxADC )
332 {
333 adc = kMaxADC;
334 }
335
336 return adc;
337}
338
339//_____________________________________________________________________________
92aeef15 340void
9ec6a948 341AliMUONDigitizerV3::CreateInputDigitStore()
342{
343 /// Create an input digit store, and check that all input files
344 /// actually contains the same type of AliMUONVDigitStore
345
346 fInputDigitStore = 0x0;
347
348 for ( Int_t iFile = 0; iFile < fManager->GetNinputs(); ++iFile )
349 {
350 AliLoader* inputLoader = GetLoader(fManager->GetInputFolderName(iFile));
351
352 inputLoader->LoadSDigits("READ");
353
354 TTree* iTreeS = inputLoader->TreeS();
355 if (!iTreeS)
356 {
357 AliFatal(Form("Could not get access to input file #%d",iFile));
358 }
359
360 AliMUONVDigitStore* inputStore = AliMUONVDigitStore::Create(*iTreeS);
361
362 if (!fInputDigitStore)
363 {
364 fInputDigitStore = inputStore;
365 }
366 else
367 {
368 if ( inputStore->IsA() != fInputDigitStore->IsA() )
369 {
370 AliFatal("Got different types of AliMUONVDigitStore here. Please implement me.");
371 }
372 }
373 }
374}
375
376//_____________________________________________________________________________
377void
92aeef15 378AliMUONDigitizerV3::Exec(Option_t*)
379{
9265505b 380 /// Main method.
381 /// We first loop over input files, and merge the sdigits we found there.
382 /// Second, we digitize all the resulting sdigits
383 /// Then we generate noise-only digits (for tracker only)
384 /// And we finally generate the trigger outputs.
4ce497c4 385
b74ca120 386 AliCodeTimerAuto("")
387
92aeef15 388 AliDebug(1, "Running digitizer.");
389
390 if ( fManager->GetNinputs() == 0 )
391 {
392 AliWarning("No input set. Nothing to do.");
393 return;
394 }
395
396 if ( !fIsInitialized )
397 {
398 AliError("Not initialized. Cannot perform the work. Sorry");
399 return;
400 }
401
402 Int_t nInputFiles = fManager->GetNinputs();
403
40e382ae 404 AliLoader* outputLoader = GetLoader(fManager->GetOutputFolderName());
405
406 outputLoader->MakeDigitsContainer();
407
408 TTree* oTreeD = outputLoader->TreeD();
409
410 if (!oTreeD)
92aeef15 411 {
40e382ae 412 AliFatal("Cannot create output TreeD");
92aeef15 413 }
40e382ae 414
92aeef15 415 // Loop over all the input files, and merge the sdigits found in those
416 // files.
40e382ae 417
92aeef15 418 for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile )
419 {
40e382ae 420 AliLoader* inputLoader = GetLoader(fManager->GetInputFolderName(iFile));
421
422 inputLoader->LoadSDigits("READ");
423
424 TTree* iTreeS = inputLoader->TreeS();
425 if (!iTreeS)
92aeef15 426 {
427 AliFatal(Form("Could not get access to input file #%d",iFile));
428 }
9ec6a948 429
430 if (!fInputDigitStore)
431 {
432 CreateInputDigitStore();
433 }
434 fInputDigitStore->Connect(*iTreeS);
40e382ae 435
436 iTreeS->GetEvent(0);
437
9ec6a948 438 MergeWithSDigits(fDigitStore,*fInputDigitStore,fManager->GetMask(iFile));
05314992 439
40e382ae 440 inputLoader->UnloadSDigits();
05314992 441
9ec6a948 442 fInputDigitStore->Clear();
92aeef15 443 }
444
445 // At this point, we do have digit arrays (one per chamber) which contains
446 // the merging of all the sdigits of the input file(s).
447 // We now massage them to apply the detector response, i.e. this
448 // is here that we do the "digitization" work.
449
40e382ae 450 if (!fOutputDigitStore)
451 {
452 fOutputDigitStore = fDigitStore->Create();
453 }
454
8c0b5e70 455 if ( fGenerateNoisyDigits>=2 )
456 {
457 // Generate noise-only digits for trigger.
458 GenerateNoisyDigitsForTrigger(*fDigitStore);
459 }
460
40e382ae 461 ApplyResponse(*fDigitStore,*fOutputDigitStore);
4ce497c4 462
463 if ( fGenerateNoisyDigits )
464 {
465 // Generate noise-only digits for tracker.
40e382ae 466 GenerateNoisyDigits(*fOutputDigitStore);
4ce497c4 467 }
468
92aeef15 469 // We generate the global and local trigger decisions.
40e382ae 470 fTriggerProcessor->Digits2Trigger(*fOutputDigitStore,*fTriggerStore);
471
472 // Prepare output tree
473 Bool_t okD = fOutputDigitStore->Connect(*oTreeD,kFALSE);
474 Bool_t okT = fTriggerStore->Connect(*oTreeD,kFALSE);
475 if (!okD || !okT)
476 {
477 AliError(Form("Could not make branch : Digit %d Trigger %d",okD,okT));
478 return;
479 }
92aeef15 480
481 // Fill the output treeD
40e382ae 482 oTreeD->Fill();
92aeef15 483
484 // Write to the output tree(D).
485 // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same
486 // tree (=TreeD) in different branches, this WriteDigits in fact writes all of
487 // the 3 branches.
40e382ae 488 outputLoader->WriteDigits("OVERWRITE");
92aeef15 489
40e382ae 490 outputLoader->UnloadDigits();
4ce497c4 491
40e382ae 492 // Finally, we clean up after ourselves.
493 fTriggerStore->Clear();
494 fDigitStore->Clear();
495 fOutputDigitStore->Clear();
92aeef15 496}
497
4ce497c4 498
499//_____________________________________________________________________________
4ce497c4 500void
40e382ae 501AliMUONDigitizerV3::GenerateNoisyDigits(AliMUONVDigitStore& digitStore)
4ce497c4 502{
9265505b 503 /// According to a given probability, generate digits that
504 /// have a signal above the noise cut (ped+n*sigma_ped), i.e. digits
505 /// that are "only noise".
4ce497c4 506
b74ca120 507 AliCodeTimerAuto("")
508
4ce497c4 509 for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i )
510 {
511 AliMpDEIterator it;
512
513 it.First(i);
514
515 while ( !it.IsDone() )
516 {
517 for ( Int_t cathode = 0; cathode < 2; ++cathode )
518 {
40e382ae 519 GenerateNoisyDigitsForOneCathode(digitStore,it.CurrentDEId(),cathode);
4ce497c4 520 }
521 it.Next();
522 }
523 }
4ce497c4 524}
525
526//_____________________________________________________________________________
527void
40e382ae 528AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(AliMUONVDigitStore& digitStore,
529 Int_t detElemId, Int_t cathode)
4ce497c4 530{
9265505b 531 /// Generate noise-only digits for one cathode of one detection element.
532 /// Called by GenerateNoisyDigits()
4ce497c4 533
9265505b 534 const AliMpVSegmentation* seg
866c3232 535 = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode));
4ce497c4 536 Int_t nofPads = seg->NofPads();
537
538 Int_t maxIx = seg->MaxPadIndexX();
539 Int_t maxIy = seg->MaxPadIndexY();
540
cdea095e 541 static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgkNSigmas/TMath::Sqrt(2.0)) / 2. ;
4ce497c4 542
84aac932 543 Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads);
4ce497c4 544 if ( !nofNoisyPads ) return;
545
546 nofNoisyPads =
547 TMath::Nint(gRandom->Gaus(nofNoisyPads,
548 nofNoisyPads/TMath::Sqrt(nofNoisyPads)));
549
550 AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads));
551
40e382ae 552 for ( Int_t i = 0; i < nofNoisyPads; ++i )
4ce497c4 553 {
554 Int_t ix(-1);
555 Int_t iy(-1);
40e382ae 556 AliMpPad pad;
557
4ce497c4 558 do {
559 ix = gRandom->Integer(maxIx+1);
560 iy = gRandom->Integer(maxIy+1);
168e9c4d 561 pad = seg->PadByIndices(ix,iy,kFALSE);
40e382ae 562 } while ( !pad.IsValid() );
563
168e9c4d 564 Int_t manuId = pad.GetManuId();
565 Int_t manuChannel = pad.GetManuChannel();
40e382ae 566
4ce497c4 567 AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId);
568
ad26d4f6 569 if (!pedestals)
570 {
571 // no pedestal available for this channel, simply give up
40e382ae 572 continue;
ad26d4f6 573 }
574
40e382ae 575 AliMUONVDigit* d = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode);
576
577 d->SetPadXY(ix,iy);
578
ec9acc85 579 d->SetCharge(0.0); // charge is zero, the ApplyResponseToTrackerDigit will add the noise
40e382ae 580 d->NoiseOnly(kTRUE);
ec9acc85 581 ApplyResponseToTrackerDigit(*d,kTRUE);
cf27231a 582 if ( d->ADC() > 0 )
4ce497c4 583 {
40e382ae 584 Bool_t ok = digitStore.Add(*d,AliMUONVDigitStore::kDeny);
585 // this can happen (that we randomly chose a digit that is
586 // already there). We simply ignore this, but log the occurence
587 // to cross-check that it's not too frequent.
588 if (!ok)
589 {
590 fLogger->Log("Collision while adding noiseOnly digit");
591 }
592 else
593 {
594 fLogger->Log("Added noiseOnly digit");
595 }
4ce497c4 596 }
40e382ae 597 delete d;
4ce497c4 598 }
599}
600
8c0b5e70 601
602//_____________________________________________________________________________
603void
604AliMUONDigitizerV3::GenerateNoisyDigitsForTrigger(AliMUONVDigitStore& digitStore)
605{
606 /// Generate noise-only digits for one cathode of one detection element.
607 /// Called by GenerateNoisyDigits()
608
609 if ( !fNoiseFunctionTrig )
610 {
611 fNoiseFunctionTrig = new TF1("AliMUONDigitizerV3::fNoiseFunctionTrig","landau",
612 50.,270.);
613
614 fNoiseFunctionTrig->SetParameters(3.91070e+02, 9.85026, 9.35881e-02);
615 }
616
617 AliMpPad pad[2];
618 AliMUONVDigit *d[2]={0x0};
619
620 for ( Int_t chamberId = AliMUONConstants::NTrackingCh(); chamberId < AliMUONConstants::NCh(); ++chamberId )
621 {
622
623 Int_t nofNoisyPads = 50;
624
625 Float_t r=-1, fi = 0., gx, gy, x, y, z, xg01, yg01, zg, xg02, yg02;
626 AliMpDEIterator it;
627
628 AliDebug(3,Form("Chamber %d nofNoisyPads %d",chamberId,nofNoisyPads));
629
630 for ( Int_t i = 0; i < nofNoisyPads; ++i )
631 {
632 //printf("Generating noise %i\n",i);
633 Int_t ix(-1);
634 Int_t iy(-1);
635 Bool_t isOk = kFALSE;
636 Int_t detElemId = -1;
637 do {
638 //r = gRandom->Landau(9.85026, 9.35881e-02);
639 r = fNoiseFunctionTrig->GetRandom();
640 fi = 2. * TMath::Pi() * gRandom->Rndm();
641 //printf("r = %f\tfi = %f\n", r, fi);
642 gx = r * TMath::Cos(fi);
643 gy = r * TMath::Sin(fi);
644
645 for ( it.First(chamberId); ! it.IsDone(); it.Next() ){
646 Int_t currDetElemId = it.CurrentDEId();
647 const AliMpVSegmentation* seg
648 = AliMpSegmentation::Instance()->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(0));
649 if (!seg) continue;
6e97fbb8 650 Float_t deltax = seg->GetDimensionX();
651 Float_t deltay = seg->GetDimensionY();
8c0b5e70 652 GetTransformer()->Local2Global(currDetElemId, -deltax, -deltay, 0, xg01, yg01, zg);
653 GetTransformer()->Local2Global(currDetElemId, deltax, deltay, 0, xg02, yg02, zg);
654 Float_t xg1 = xg01, xg2 = xg02, yg1 = yg01, yg2 = yg02;
655 if(xg01>xg02){
656 xg1 = xg02;
657 xg2 = xg01;
658 }
659 if(yg01>yg02){
660 yg1 = yg02;
661 yg2 = yg01;
662 }
663 if(gx>=xg1 && gx<=xg2 && gy>=yg1 && gy<=yg2){
664 detElemId = currDetElemId;
665 GetTransformer()->Global2Local(detElemId, gx, gy, 0, x, y, z);
6e97fbb8 666 pad[0] = seg->PadByPosition(x,y,kFALSE);
8c0b5e70 667 if(!pad[0].IsValid()) continue;
668 isOk = kTRUE;
669 break;
670 }
671 } // loop on slats
672 } while ( !isOk );
673
674 const AliMpVSegmentation* seg1
675 = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(1));
6e97fbb8 676 pad[1] = seg1->PadByPosition(x,y,kFALSE);
8c0b5e70 677
678 for ( Int_t cathode = 0; cathode < 2; ++cathode ){
168e9c4d 679 Int_t manuId = pad[cathode].GetLocalBoardId(0);
680 Int_t manuChannel = pad[cathode].GetLocalBoardChannel(0);
8c0b5e70 681 d[cathode] = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode);
168e9c4d 682 ix = pad[cathode].GetIx();
683 iy = pad[cathode].GetIy();
8c0b5e70 684 d[cathode]->SetPadXY(ix,iy);
685 //d[cathode].SetSignal(1);
686 //d[cathode].SetPhysicsSignal(0);
687 d[cathode]->SetCharge(1);
688 d[cathode]->NoiseOnly(kTRUE);
689 AliDebug(3,Form("Adding a pure noise digit :"));
690
691 Bool_t ok = digitStore.Add(*d[cathode],AliMUONVDigitStore::kDeny);
692 if (!ok)
693 {
694 fLogger->Log("Collision while adding TriggerNoise digit");
695 }
696 else
697 {
698 fLogger->Log("Added triggerNoise digit");
699 }
700 } //loop on cathodes
701 } // loop on noisy pads
702 } // loop on chambers
703}
704
705
4ce497c4 706//_____________________________________________________________________________
40e382ae 707AliLoader*
708AliMUONDigitizerV3::GetLoader(const TString& folderName)
92aeef15 709{
40e382ae 710 /// Get a MUON loader
9265505b 711
ad26d4f6 712 AliDebug(2,Form("Getting access to folder %s",folderName.Data()));
40e382ae 713 AliLoader* loader = AliRunLoader::GetDetectorLoader("MUON",folderName.Data());
92aeef15 714 if (!loader)
715 {
716 AliError(Form("Could not get MuonLoader from folder %s",folderName.Data()));
717 return 0x0;
718 }
40e382ae 719 return loader;
92aeef15 720}
721
722//_____________________________________________________________________________
723Bool_t
724AliMUONDigitizerV3::Init()
725{
9265505b 726 /// Initialization of the TTask :
40e382ae 727 /// a) create the calibrationData, according to run number
728 /// b) create the trigger processing task
9265505b 729
ad26d4f6 730 AliDebug(2,"");
92aeef15 731
732 if ( fIsInitialized )
733 {
734 AliError("Object already initialized.");
735 return kFALSE;
736 }
737
738 if (!fManager)
739 {
740 AliError("fManager is null !");
741 return kFALSE;
742 }
743
331a617a 744 // Load mapping
745 if ( ! AliMpCDB::LoadDDLStore() ) {
88544f7e 746 AliFatal("Could not access mapping from OCDB !");
747 }
748
92c23b09 749 if (!fCalibrationData)
750 AliFatal("Calibration data object not defined");
751
ad26d4f6 752 if ( !fCalibrationData->Pedestals() )
753 {
754 AliFatal("Could not access pedestals from OCDB !");
755 }
756 if ( !fCalibrationData->Gains() )
757 {
758 AliFatal("Could not access gains from OCDB !");
759 }
92c23b09 760
761
762 AliInfo("Using trigger configuration from CDB");
763
40e382ae 764 fTriggerProcessor = new AliMUONTriggerElectronics(fCalibrationData);
4ce497c4 765
ad26d4f6 766 AliDebug(1, Form("Will %s generate noise-only digits for tracker",
767 (fGenerateNoisyDigits ? "":"NOT")));
768
92aeef15 769 fIsInitialized = kTRUE;
770 return kTRUE;
771}
772
773//_____________________________________________________________________________
92aeef15 774void
40e382ae 775AliMUONDigitizerV3::MergeWithSDigits(AliMUONVDigitStore*& outputStore,
776 const AliMUONVDigitStore& input,
777 Int_t mask)
92aeef15 778{
9265505b 779 /// Merge the sdigits in inputData with the digits already present in outputData
92aeef15 780
40e382ae 781 if ( !outputStore ) outputStore = input.Create();
782
783 TIter next(input.CreateIterator());
784 AliMUONVDigit* sdigit;
785
786 while ( ( sdigit = static_cast<AliMUONVDigit*>(next()) ) )
787 {
788 // Update the track references using the mask.
789 // FIXME: this is dirty, for backward compatibility only.
790 // Should re-design all this way of keeping track of MC information...
791 if ( mask ) sdigit->PatchTracks(mask);
792 // Then add or update the digit to the output.
793 AliMUONVDigit* added = outputStore->Add(*sdigit,AliMUONVDigitStore::kMerge);
794 if (!added)
92aeef15 795 {
40e382ae 796 AliError("Could not add digit in merge mode");
92aeef15 797 }
92aeef15 798 }
799}
ec9acc85 800
801//_____________________________________________________________________________
802TF1*
803AliMUONDigitizerV3::NoiseFunction()
804{
805 /// Return noise function
806 static TF1* f = 0x0;
807 if (!f)
808 {
809 f = new TF1("AliMUONDigitizerV3::NoiseFunction","gaus",fgkNSigmas,fgkNSigmas*10);
810 f->SetParameters(1,0,1);
811 }
812 return f;
813}
814