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