bugs fixed (Diego)
[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
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
60namespace
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
74const Double_t AliMUONDigitizerV3::fgkNSigmas=3;
75
92aeef15 76ClassImp(AliMUONDigitizerV3)
77
78//_____________________________________________________________________________
79AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager,
4ce497c4 80 ETriggerCodeVersion triggerCodeVersion,
81 Bool_t useTriggerEfficiency,
82 Bool_t generateNoisyDigits)
92aeef15 83: AliDigitizer(manager),
92aeef15 84fIsInitialized(kFALSE),
85fOutputData(0x0),
86fCalibrationData(0x0),
87fTriggerProcessor(0x0),
4ce497c4 88fTriggerCodeVersion(triggerCodeVersion),
89fUseTriggerEfficiency(useTriggerEfficiency),
90fTriggerEfficiency(0x0),
91fNoiseFunction(0x0),
92fGenerateNoisyDigits(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//______________________________________________________________________________
104AliMUONDigitizerV3::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//_____________________________________________________________________________
113AliMUONDigitizerV3::~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//______________________________________________________________________________
139AliMUONDigitizerV3&
140AliMUONDigitizerV3::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//_____________________________________________________________________________
153void
4ce497c4 154AliMUONDigitizerV3::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//_____________________________________________________________________________
229void
230AliMUONDigitizerV3::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//_____________________________________________________________________________
294void
295AliMUONDigitizerV3::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//_____________________________________________________________________________
360void
361AliMUONDigitizerV3::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//_____________________________________________________________________________
388void
389AliMUONDigitizerV3::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//_____________________________________________________________________________
480AliMUONDigit*
481AliMUONDigitizerV3::FindCorrespondingDigit(AliMUONDigit& digit,
482 AliMUONData* data)
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//_____________________________________________________________________________
516Int_t
4ce497c4 517AliMUONDigitizerV3::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//_____________________________________________________________________________
548void
549AliMUONDigitizerV3::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//_____________________________________________________________________________
587void
588AliMUONDigitizerV3::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
603 static const Double_t probToBeOutsideNsigmas = 1 - TMath::Erf(fgkNSigmas/TMath::Sqrt(2.0));
604
605 Int_t nofNoisyPads = TMath::Nint(probToBeOutsideNsigmas*nofPads);
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//_____________________________________________________________________________
667AliMUONData*
668AliMUONDigitizerV3::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//_____________________________________________________________________________
692Bool_t
693AliMUONDigitizerV3::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//_____________________________________________________________________________
768Bool_t
05314992 769AliMUONDigitizerV3::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//_____________________________________________________________________________
799void
800AliMUONDigitizerV3::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}