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