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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" | |
21 | #include "AliMUONCalibrationData.h" | |
22 | #include "AliMUONChamber.h" | |
23 | #include "AliMUONConstants.h" | |
24 | #include "AliMUONData.h" | |
25 | #include "AliMUONDigit.h" | |
26 | #include "AliMUONTriggerDecisionV1.h" | |
4f8a3d8b | 27 | #include "AliMUONTriggerElectronics.h" |
05314992 | 28 | #include "AliMUONVCalibParam.h" |
92aeef15 | 29 | #include "AliMpDEManager.h" |
30 | #include "AliMpStationType.h" | |
31 | #include "AliRun.h" | |
32 | #include "AliRunDigitizer.h" | |
33 | #include "AliRunLoader.h" | |
34 | #include "Riostream.h" | |
35 | #include "TRandom.h" | |
36 | #include "TString.h" | |
37 | ||
38 | ClassImp(AliMUONDigitizerV3) | |
39 | ||
40 | //_____________________________________________________________________________ | |
41 | AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager, | |
42 | ETriggerCodeVersion triggerCodeVersion) | |
43 | : AliDigitizer(manager), | |
92aeef15 | 44 | fIsInitialized(kFALSE), |
45 | fOutputData(0x0), | |
46 | fCalibrationData(0x0), | |
47 | fTriggerProcessor(0x0), | |
48 | fTriggerCodeVersion(triggerCodeVersion) | |
49 | { | |
05314992 | 50 | // |
51 | // Ctor. | |
52 | // | |
92aeef15 | 53 | AliDebug(1,Form("AliRunDigitizer=%p",fManager)); |
54 | } | |
55 | ||
884a73f1 | 56 | //______________________________________________________________________________ |
57 | AliMUONDigitizerV3::AliMUONDigitizerV3(const AliMUONDigitizerV3& right) | |
58 | : AliDigitizer(right) | |
59 | { | |
60 | /// Protected copy constructor (not implemented) | |
61 | ||
62 | AliFatal("Copy constructor not provided."); | |
63 | } | |
64 | ||
92aeef15 | 65 | //_____________________________________________________________________________ |
66 | AliMUONDigitizerV3::~AliMUONDigitizerV3() | |
67 | { | |
05314992 | 68 | // |
69 | // Dtor. Note we're the owner of some pointers. | |
70 | // | |
92aeef15 | 71 | AliDebug(1,"dtor"); |
72 | delete fOutputData; | |
73 | delete fCalibrationData; | |
74 | delete fTriggerProcessor; | |
75 | } | |
76 | ||
884a73f1 | 77 | //______________________________________________________________________________ |
78 | AliMUONDigitizerV3& | |
79 | AliMUONDigitizerV3::operator=(const AliMUONDigitizerV3& right) | |
80 | { | |
81 | /// Protected assignement operator (not implemented) | |
82 | ||
83 | // check assignement to self | |
84 | if (this == &right) return *this; | |
85 | ||
86 | AliFatal("Assignement operator not provided."); | |
87 | ||
88 | return *this; | |
89 | } | |
90 | ||
92aeef15 | 91 | //_____________________________________________________________________________ |
92 | void | |
93 | AliMUONDigitizerV3::ApplyResponseToDigit(AliMUONDigit& digit) | |
94 | { | |
05314992 | 95 | // For trigger digits, simply does nothing. |
92aeef15 | 96 | // |
97 | // For tracking digits, starting from an ideal digit's charge, we : | |
98 | // | |
99 | // - add some noise (thus leading to a realistic charge) | |
100 | // - divide by a gain (thus decalibrating the digit) | |
101 | // - add a pedestal (thus decalibrating the digit) | |
05314992 | 102 | // - sets the signal to zero if below 3*sigma of the noise |
92aeef15 | 103 | // |
104 | ||
05314992 | 105 | static const Int_t MAXADC = (1<<12)-1; // We code the charge on a 12 bits ADC. |
106 | ||
92aeef15 | 107 | Int_t detElemId = digit.DetElemId(); |
108 | AliMpStationType stationType = AliMpDEManager::GetStationType(detElemId); | |
109 | if ( stationType == kStationTrigger ) | |
110 | { | |
92aeef15 | 111 | return; |
112 | } | |
113 | ||
114 | // The following is for tracking digits only. | |
115 | ||
116 | Int_t manuId = digit.ManuId(); | |
117 | Int_t manuChannel = digit.ManuChannel(); | |
118 | ||
05314992 | 119 | AliMUONVCalibParam* pedestal = fCalibrationData->Pedestal(detElemId,manuId); |
92aeef15 | 120 | if (!pedestal) |
121 | { | |
05314992 | 122 | AliFatal(Form("Could not get pedestal for DE=%d manuId=%d", |
123 | detElemId,manuId)); | |
92aeef15 | 124 | } |
05314992 | 125 | Float_t pedestalMean = pedestal->ValueAsFloat(manuChannel,0); |
126 | Float_t pedestalSigma = pedestal->ValueAsFloat(manuChannel,1); | |
92aeef15 | 127 | |
05314992 | 128 | Float_t adc_noise = gRandom->Gaus(0.0,pedestalSigma); |
129 | ||
130 | AliMUONVCalibParam* gain = fCalibrationData->Gain(detElemId,manuId); | |
92aeef15 | 131 | if (!gain) |
132 | { | |
05314992 | 133 | AliFatal(Form("Could not get gain for DE=%d manuId=%d", |
134 | detElemId,manuId)); | |
92aeef15 | 135 | } |
136 | ||
05314992 | 137 | Float_t gainMean = gain->ValueAsFloat(manuChannel,0); |
138 | Float_t signal_noise = adc_noise*gainMean; | |
92aeef15 | 139 | |
140 | Float_t signal = digit.Signal() + signal_noise; | |
141 | Int_t adc; | |
142 | ||
05314992 | 143 | if ( gainMean < 1E-6 ) |
92aeef15 | 144 | { |
05314992 | 145 | AliError(Form("Got a too small gain %e for DE=%d manuId=%d manuChannel=%d. " |
146 | "Setting signal to 0.", | |
147 | gainMean,detElemId,manuId,manuChannel)); | |
148 | adc = 0; | |
92aeef15 | 149 | } |
150 | else | |
151 | { | |
05314992 | 152 | adc = TMath::Nint( signal / gainMean + pedestalMean ); |
92aeef15 | 153 | |
05314992 | 154 | if ( adc <= pedestalMean + 3.0*pedestalSigma ) |
92aeef15 | 155 | { |
156 | adc = 0; | |
157 | } | |
158 | } | |
05314992 | 159 | // be sure we stick to 12 bits. |
160 | if ( adc > MAXADC ) | |
161 | { | |
162 | adc = MAXADC; | |
163 | } | |
92aeef15 | 164 | digit.SetPhysicsSignal(TMath::Nint(signal)); |
165 | digit.SetSignal(adc); | |
166 | digit.SetADC(adc); | |
167 | } | |
168 | ||
169 | //_____________________________________________________________________________ | |
170 | void | |
171 | AliMUONDigitizerV3::ApplyResponse() | |
172 | { | |
05314992 | 173 | // |
174 | // Loop over all chamber digits, and apply the response to them | |
175 | // Note that this method may remove digits. | |
176 | // | |
92aeef15 | 177 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) |
178 | { | |
179 | TClonesArray* digits = fOutputData->Digits(ich); | |
180 | Int_t n = digits->GetEntriesFast(); | |
181 | for ( Int_t i = 0; i < n; ++i ) | |
182 | { | |
183 | AliMUONDigit* d = static_cast<AliMUONDigit*>(digits->UncheckedAt(i)); | |
184 | ApplyResponseToDigit(*d); | |
185 | if ( d->Signal() <= 0 ) | |
186 | { | |
187 | digits->RemoveAt(i); | |
188 | } | |
189 | } | |
05314992 | 190 | digits->Compress(); |
92aeef15 | 191 | } |
92aeef15 | 192 | } |
193 | ||
194 | //_____________________________________________________________________________ | |
195 | void | |
196 | AliMUONDigitizerV3::AddOrUpdateDigit(TClonesArray& array, | |
197 | const AliMUONDigit& digit) | |
198 | { | |
05314992 | 199 | // |
200 | // Add or update a digit, depending on whether there's already a digit | |
201 | // for the corresponding channel. | |
202 | // | |
92aeef15 | 203 | Int_t ix = FindDigitIndex(array,digit); |
204 | ||
205 | if (ix>=0) | |
206 | { | |
207 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(ix)); | |
208 | Bool_t ok = MergeDigits(digit,*d); | |
209 | if (!ok) | |
210 | { | |
211 | AliError("Digits are not mergeable !"); | |
212 | } | |
92aeef15 | 213 | } |
214 | else | |
215 | { | |
216 | ix = array.GetLast() + 1; | |
217 | new(array[ix]) AliMUONDigit(digit); | |
218 | } | |
219 | ||
220 | } | |
221 | ||
222 | //_____________________________________________________________________________ | |
223 | void | |
224 | AliMUONDigitizerV3::Exec(Option_t*) | |
225 | { | |
05314992 | 226 | // |
227 | // Main method. | |
228 | // We first loop over input files, and merge the sdigits we found there. | |
229 | // We then digitize all the resulting sdigits | |
230 | // And we finally generate the trigger outputs. | |
231 | // | |
92aeef15 | 232 | AliDebug(1, "Running digitizer."); |
233 | ||
234 | if ( fManager->GetNinputs() == 0 ) | |
235 | { | |
236 | AliWarning("No input set. Nothing to do."); | |
237 | return; | |
238 | } | |
239 | ||
240 | if ( !fIsInitialized ) | |
241 | { | |
242 | AliError("Not initialized. Cannot perform the work. Sorry"); | |
243 | return; | |
244 | } | |
245 | ||
246 | Int_t nInputFiles = fManager->GetNinputs(); | |
247 | ||
248 | if ( fOutputData->TreeD() == 0x0 ) | |
249 | { | |
250 | AliDebug(1,"Calling MakeDigitsContainer"); | |
251 | fOutputData->GetLoader()->MakeDigitsContainer(); | |
252 | } | |
253 | fOutputData->MakeBranch("D,GLT"); | |
254 | fOutputData->SetTreeAddress("D,GLT"); | |
255 | ||
256 | // Loop over all the input files, and merge the sdigits found in those | |
257 | // files. | |
258 | for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile ) | |
259 | { | |
260 | AliMUONData* inputData = GetDataAccess(fManager->GetInputFolderName(iFile)); | |
261 | if (!inputData) | |
262 | { | |
263 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
264 | } | |
05314992 | 265 | |
92aeef15 | 266 | inputData->GetLoader()->LoadSDigits("READ"); |
92aeef15 | 267 | inputData->SetTreeAddress("S"); |
268 | inputData->GetSDigits(); | |
05314992 | 269 | |
270 | MergeWithSDigits(*fOutputData,*inputData,fManager->GetMask(iFile)); | |
271 | ||
92aeef15 | 272 | inputData->ResetSDigits(); |
273 | inputData->GetLoader()->UnloadSDigits(); | |
274 | delete inputData; | |
275 | } | |
276 | ||
277 | // At this point, we do have digit arrays (one per chamber) which contains | |
278 | // the merging of all the sdigits of the input file(s). | |
279 | // We now massage them to apply the detector response, i.e. this | |
280 | // is here that we do the "digitization" work. | |
281 | ||
282 | ApplyResponse(); | |
05314992 | 283 | |
92aeef15 | 284 | // We generate the global and local trigger decisions. |
285 | fTriggerProcessor->ExecuteTask(); | |
286 | ||
287 | // Fill the output treeD | |
288 | fOutputData->Fill("D,GLT"); | |
289 | ||
290 | // Write to the output tree(D). | |
291 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
292 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
293 | // the 3 branches. | |
294 | fOutputData->GetLoader()->WriteDigits("OVERWRITE"); | |
295 | ||
296 | // Finally, we clean up after ourselves. | |
297 | fOutputData->ResetDigits(); | |
298 | fOutputData->ResetTrigger(); | |
299 | fOutputData->GetLoader()->UnloadDigits(); | |
300 | } | |
301 | ||
302 | //_____________________________________________________________________________ | |
303 | Int_t | |
304 | AliMUONDigitizerV3::FindDigitIndex(TClonesArray& array, const AliMUONDigit& digit) | |
305 | { | |
05314992 | 306 | // |
307 | // Return the index of digit within array, if that digit is there, | |
308 | // otherwise returns -1 | |
309 | // | |
92aeef15 | 310 | // FIXME: this is of course not the best implementation you can think of. |
05314992 | 311 | // Reconsider the use of hit/digit map... ? (but be sure it's needed!) |
312 | // | |
92aeef15 | 313 | Int_t n = array.GetEntriesFast(); |
314 | for ( Int_t i = 0; i < n; ++i ) | |
315 | { | |
316 | AliMUONDigit* d = static_cast<AliMUONDigit*>(array.UncheckedAt(i)); | |
317 | if ( d->DetElemId() == digit.DetElemId() && | |
318 | d->PadX() == digit.PadX() && | |
319 | d->PadY() == digit.PadY() && | |
320 | d->Cathode() == digit.Cathode() ) | |
321 | { | |
322 | return i; | |
323 | } | |
324 | } | |
325 | return -1; | |
326 | } | |
327 | ||
328 | //_____________________________________________________________________________ | |
329 | AliMUONData* | |
330 | AliMUONDigitizerV3::GetDataAccess(const TString& folderName) | |
331 | { | |
05314992 | 332 | // |
333 | // Create an AliMUONData to deal with data found in folderName. | |
334 | // | |
92aeef15 | 335 | AliDebug(1,Form("Getting access to folder %s",folderName.Data())); |
336 | AliRunLoader* runLoader = AliRunLoader::GetRunLoader(folderName); | |
337 | if (!runLoader) | |
338 | { | |
339 | AliError(Form("Could not get RunLoader from folder %s",folderName.Data())); | |
340 | return 0x0; | |
341 | } | |
342 | AliLoader* loader = static_cast<AliLoader*>(runLoader->GetLoader("MUONLoader")); | |
343 | if (!loader) | |
344 | { | |
345 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
346 | return 0x0; | |
347 | } | |
348 | AliMUONData* data = new AliMUONData(loader,"MUON","MUONDataForDigitOutput"); | |
349 | AliDebug(1,Form("AliMUONData=%p loader=%p",data,loader)); | |
350 | return data; | |
351 | } | |
352 | ||
353 | //_____________________________________________________________________________ | |
354 | Bool_t | |
355 | AliMUONDigitizerV3::Init() | |
356 | { | |
05314992 | 357 | // |
358 | // Initialization of the TTask : | |
359 | // a) set the outputData pointer | |
360 | // b) create the calibrationData, according to run number | |
361 | // c) create the trigger processing task | |
362 | // | |
92aeef15 | 363 | AliDebug(1,""); |
364 | ||
365 | if ( fIsInitialized ) | |
366 | { | |
367 | AliError("Object already initialized."); | |
368 | return kFALSE; | |
369 | } | |
370 | ||
371 | if (!fManager) | |
372 | { | |
373 | AliError("fManager is null !"); | |
374 | return kFALSE; | |
375 | } | |
376 | ||
377 | fOutputData = GetDataAccess(fManager->GetOutputFolderName()); | |
378 | if (!fOutputData) | |
379 | { | |
380 | AliError("Can not perform digitization. I'm sorry"); | |
381 | return kFALSE; | |
382 | } | |
383 | AliDebug(1,Form("fOutputData=%p",fOutputData)); | |
384 | ||
385 | AliRunLoader* runLoader = fOutputData->GetLoader()->GetRunLoader(); | |
386 | AliRun* galice = runLoader->GetAliRun(); | |
387 | Int_t runnumber = galice->GetRunNumber(); | |
388 | ||
389 | fCalibrationData = new AliMUONCalibrationData(runnumber); | |
390 | ||
391 | switch (fTriggerCodeVersion) | |
392 | { | |
393 | case kTriggerDecision: | |
394 | fTriggerProcessor = new AliMUONTriggerDecisionV1(fOutputData); | |
395 | break; | |
396 | case kTriggerElectronics: | |
4f8a3d8b | 397 | fTriggerProcessor = new AliMUONTriggerElectronics(fOutputData); |
92aeef15 | 398 | break; |
399 | default: | |
400 | AliFatal("Unknown trigger processor type"); | |
401 | break; | |
402 | } | |
4f8a3d8b | 403 | AliDebug(1,Form("Using the following trigger code %s - %s", |
404 | fTriggerProcessor->GetName(),fTriggerProcessor->GetTitle())); | |
92aeef15 | 405 | fIsInitialized = kTRUE; |
406 | return kTRUE; | |
407 | } | |
408 | ||
409 | //_____________________________________________________________________________ | |
410 | Bool_t | |
05314992 | 411 | AliMUONDigitizerV3::MergeDigits(const AliMUONDigit& src, |
412 | AliMUONDigit& srcAndDest) | |
92aeef15 | 413 | { |
05314992 | 414 | // |
415 | // Merge 2 digits (src and srcAndDest) into srcAndDest. | |
416 | // | |
92aeef15 | 417 | AliDebug(1,"Merging the following digits:"); |
05314992 | 418 | StdoutToAliDebug(1,src.Print("tracks");); |
419 | StdoutToAliDebug(1,srcAndDest.Print("tracks");); | |
92aeef15 | 420 | |
421 | Bool_t check = ( src.DetElemId() == srcAndDest.DetElemId() && | |
422 | src.PadX() == srcAndDest.PadX() && | |
423 | src.PadY() == srcAndDest.PadY() && | |
424 | src.Cathode() == srcAndDest.Cathode() ); | |
425 | if (!check) | |
426 | { | |
427 | return kFALSE; | |
428 | } | |
429 | ||
92aeef15 | 430 | srcAndDest.AddSignal(src.Signal()); |
431 | srcAndDest.AddPhysicsSignal(src.Physics()); | |
05314992 | 432 | for ( Int_t i = 0; i < src.Ntracks(); ++i ) |
433 | { | |
434 | srcAndDest.AddTrack(src.Track(i),src.TrackCharge(i)); | |
435 | } | |
436 | StdoutToAliDebug(1,cout << "result:"; srcAndDest.Print("tracks");); | |
92aeef15 | 437 | return kTRUE; |
438 | } | |
439 | ||
440 | //_____________________________________________________________________________ | |
441 | void | |
442 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONData& outputData, | |
05314992 | 443 | const AliMUONData& inputData, Int_t mask) |
92aeef15 | 444 | { |
05314992 | 445 | // |
446 | // Merge the sdigits in inputData with the digits already present in outputData | |
447 | // | |
92aeef15 | 448 | AliDebug(1,""); |
449 | ||
450 | for ( Int_t ich = 0; ich < AliMUONConstants::NCh(); ++ich ) | |
451 | { | |
452 | TClonesArray* iDigits = inputData.SDigits(ich); | |
453 | TClonesArray* oDigits = outputData.Digits(ich); | |
454 | if (!iDigits) | |
455 | { | |
456 | AliError(Form("Could not get sdigits for ich=%d",ich)); | |
457 | return; | |
458 | } | |
459 | Int_t nSDigits = iDigits->GetEntriesFast(); | |
460 | for ( Int_t k = 0; k < nSDigits; ++k ) | |
461 | { | |
462 | AliMUONDigit* sdigit = static_cast<AliMUONDigit*>(iDigits->UncheckedAt(k)); | |
92aeef15 | 463 | if (!sdigit) |
464 | { | |
465 | AliError(Form("Could not get sdigit for ich=%d and k=%d",ich,k)); | |
466 | } | |
467 | else | |
468 | { | |
05314992 | 469 | // Update the track references using the mask. |
470 | // FIXME: this is dirty, for backward compatibility only. | |
471 | // Should re-design all this way of keeping track of MC information... | |
472 | if ( mask ) sdigit->PatchTracks(mask); | |
473 | // Then add or update the digit to the output. | |
92aeef15 | 474 | AddOrUpdateDigit(*oDigits,*sdigit); |
475 | } | |
476 | } | |
477 | } | |
478 | } |