Moving the FMD offline trigger to its own class, AliFMDOfflineTrigger
[u/mrichter/AliRoot.git] / FMD / AliFMDBaseDigitizer.cxx
CommitLineData
02a27b50 1/**************************************************************************
2 * Copyright(c) 2004, 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/* $Id$ */
16/** @file AliFMDBaseDigitizer.cxx
17 @author Christian Holm Christensen <cholm@nbi.dk>
18 @date Mon Mar 27 12:38:26 2006
19 @brief FMD Digitizers implementation
20 @ingroup FMD_sim
21*/
22//////////////////////////////////////////////////////////////////////////////
23//
24// This class contains the procedures simulation ADC signal for the
25// Forward Multiplicity detector : Hits->Digits and Hits->SDigits
26//
27// Digits consists of
28// - Detector #
29// - Ring ID
30// - Sector #
31// - Strip #
32// - ADC count in this channel
33//
34// Digits consists of
35// - Detector #
36// - Ring ID
37// - Sector #
38// - Strip #
39// - Total energy deposited in the strip
40// - ADC count in this channel
41//
42// As the Digits and SDigits have so much in common, the classes
43// AliFMDDigitizer and AliFMDSDigitizer are implemented via a base
44// class AliFMDBaseDigitizer.
45//
46// +---------------------+
47// | AliFMDBaseDigitizer |
48// +---------------------+
49// ^
50// |
51// +----------+---------+
52// | |
53// +-----------------+ +------------------+
54// | AliFMDDigitizer | | AliFMDSDigitizer |
55// +-----------------+ +------------------+
56//
57// These classes has several paramters:
58//
59// fPedestal
60// fPedestalWidth
61// (Only AliFMDDigitizer)
62// Mean and width of the pedestal. The pedestal is simulated
63// by a Guassian, but derived classes my override MakePedestal
64// to simulate it differently (or pick it up from a database).
65//
66// fVA1MipRange
67// The dymamic MIP range of the VA1_ALICE pre-amplifier chip
68//
69// fAltroChannelSize
70// The largest number plus one that can be stored in one
71// channel in one time step in the ALTRO ADC chip.
72//
73// fSampleRate
74// How many times the ALTRO ADC chip samples the VA1_ALICE
75// pre-amplifier signal. The VA1_ALICE chip is read-out at
76// 10MHz, while it's possible to drive the ALTRO chip at
77// 25MHz. That means, that the ALTRO chip can have time to
78// sample each VA1_ALICE signal up to 2 times. Although it's
79// not certain this feature will be used in the production,
80// we'd like have the option, and so it should be reflected in
81// the code.
82//
83//
84// The shaping function of the VA1_ALICE is generally given by
85//
86// f(x) = A(1 - exp(-Bx))
87//
88// where A is the total charge collected in the pre-amp., and B is a
89// paramter that depends on the shaping time of the VA1_ALICE circut.
90//
91// When simulating the shaping function of the VA1_ALICe
92// pre-amp. chip, we have to take into account, that the shaping
93// function depends on the previous value of read from the pre-amp.
94//
95// That results in the following algorithm:
96//
97// last = 0;
98// FOR charge IN pre-amp. charge train DO
99// IF last < charge THEN
100// f(t) = (charge - last) * (1 - exp(-B * t)) + last
101// ELSE
102// f(t) = (last - charge) * exp(-B * t) + charge)
103// ENDIF
104// FOR i IN # samples DO
105// adc_i = f(i / (# samples))
106// DONE
107// last = charge
108// DONE
109//
110// Here,
111//
112// pre-amp. charge train
113// is a series of 128 charges read from the VA1_ALICE chip
114//
115// # samples
116// is the number of times the ALTRO ADC samples each of the 128
117// charges from the pre-amp.
118//
119// Where Q is the total charge collected by the VA1_ALICE
120// pre-amplifier. Q is then given by
121//
122// E S
123// Q = - -
124// e R
125//
126// where E is the total energy deposited in a silicon strip, R is the
127// dynamic range of the VA1_ALICE pre-amp (fVA1MipRange), e is the
128// energy deposited by a single MIP, and S ALTRO channel size in each
129// time step (fAltroChannelSize).
130//
131// The energy deposited per MIP is given by
132//
133// e = M * rho * w
134//
135// where M is the universal number 1.664, rho is the density of
136// silicon, and w is the depth of the silicon sensor.
137//
138// The final ADC count is given by
139//
140// C' = C + P
141//
142// where P is the (randomized) pedestal (see MakePedestal)
143//
144// This class uses the class template AliFMDMap<Type> to make an
145// internal cache of the energy deposted of the hits. The class
146// template is instantasized as
147//
148// typedef AliFMDMap<std::pair<Float_t, UShort_t> > AliFMDEdepMap;
149//
150// The first member of the values is the summed energy deposition in a
151// given strip, while the second member of the values is the number of
152// hits in a given strip. Using the second member, it's possible to
153// do some checks on just how many times a strip got hit, and what
154// kind of error we get in our reconstructed hits. Note, that this
155// information is currently not written to the digits tree. I think a
156// QA (Quality Assurance) digit tree is better suited for that task.
157// However, the information is there to be used in the future.
158//
159//
160// Latest changes by Christian Holm Christensen
161//
162//////////////////////////////////////////////////////////////////////////////
163
164// /1
165// | A(-1 + B + exp(-B))
166// | f(x) dx = ------------------- = 1
167// | B
168// / 0
169//
170// and B is the a parameter defined by the shaping time (fShapingTime).
171//
172// Solving the above equation, for A gives
173//
174// B
175// A = ----------------
176// -1 + B + exp(-B)
177//
178// So, if we define the function g: [0,1] -> [0:1] by
179//
180// / v
181// | Bu + exp(-Bu) - Bv - exp(-Bv)
182// g(u,v) = | f(x) dx = -A -----------------------------
183// | B
184// / u
185//
186// we can evaluate the ALTRO sample of the VA1_ALICE pre-amp between
187// any two times (u, v), by
188//
189//
190// B Bu + exp(-Bu) - Bv - exp(-Bv)
191// C = Q g(u,v) = - Q ---------------- -----------------------------
192// -1 + B + exp(-B) B
193//
194// Bu + exp(-Bu) - Bv - exp(-Bv)
195// = - Q -----------------------------
196// -1 + B + exp(-B)
197//
198
090026bf 199#include <TMath.h>
02a27b50 200#include <TTree.h> // ROOT_TTree
201//#include <TRandom.h> // ROOT_TRandom
f95a63c4 202// #include <AliLog.h> // ALILOG_H
203#include "AliFMDDebug.h" // Better debug macros
02a27b50 204#include "AliFMDBaseDigitizer.h" // ALIFMDDIGITIZER_H
205#include "AliFMD.h" // ALIFMD_H
206#include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
207#include "AliFMDDetector.h" // ALIFMDDETECTOR_H
208#include "AliFMDRing.h" // ALIFMDRING_H
209#include "AliFMDHit.h" // ALIFMDHIT_H
6169f936 210// #include "AliFMDDigit.h" // ALIFMDDIGIT_H
02a27b50 211#include "AliFMDParameters.h" // ALIFMDPARAMETERS_H
6169f936 212// #include <AliRunDigitizer.h> // ALIRUNDIGITIZER_H
02a27b50 213//#include <AliRun.h> // ALIRUN_H
214#include <AliLoader.h> // ALILOADER_H
42f1b2f5 215#include <AliRun.h> // ALILOADER_H
02a27b50 216#include <AliRunLoader.h> // ALIRUNLOADER_H
ef8e8623 217#include <TRandom.h>
02a27b50 218
219//====================================================================
220ClassImp(AliFMDBaseDigitizer)
221#if 0
222 ; // This is here to keep Emacs for indenting the next line
223#endif
224
225//____________________________________________________________________
226AliFMDBaseDigitizer::AliFMDBaseDigitizer()
ef8e8623 227 : fFMD(0),
228 fRunLoader(0),
b5ee4425 229 fEdep(AliFMDMap::kMaxDetectors,
230 AliFMDMap::kMaxRings,
231 AliFMDMap::kMaxSectors,
232 AliFMDMap::kMaxStrips),
b2e6f0b0 233 fShapingTime(6),
faf80567 234 fStoreTrackRefs(kTRUE)
02a27b50 235{
42f1b2f5 236 AliFMDDebug(1, ("Constructed"));
02a27b50 237 // Default ctor - don't use it
238}
239
240//____________________________________________________________________
241AliFMDBaseDigitizer::AliFMDBaseDigitizer(AliRunDigitizer* manager)
242 : AliDigitizer(manager, "AliFMDBaseDigitizer", "FMD Digitizer base class"),
ef8e8623 243 fFMD(0),
02a27b50 244 fRunLoader(0),
021f1396 245 fEdep(0), // nDet==0 means 51200 slots
b2e6f0b0 246 fShapingTime(6),
faf80567 247 fStoreTrackRefs(kTRUE)
02a27b50 248{
249 // Normal CTOR
42f1b2f5 250 AliFMDDebug(1, ("Constructed"));
02a27b50 251 SetShapingTime();
252}
253
254//____________________________________________________________________
255AliFMDBaseDigitizer::AliFMDBaseDigitizer(const Char_t* name,
256 const Char_t* title)
257 : AliDigitizer(name, title),
ef8e8623 258 fFMD(0),
02a27b50 259 fRunLoader(0),
021f1396 260 fEdep(0), // nDet==0 means 51200 slots
b2e6f0b0 261 fShapingTime(6),
faf80567 262 fStoreTrackRefs(kTRUE)
02a27b50 263{
264 // Normal CTOR
42f1b2f5 265 AliFMDDebug(1, (" Constructed"));
02a27b50 266 SetShapingTime();
267}
268
269//____________________________________________________________________
270AliFMDBaseDigitizer::~AliFMDBaseDigitizer()
271{
272 // Destructor
273}
274
275//____________________________________________________________________
276Bool_t
277AliFMDBaseDigitizer::Init()
278{
ef8e8623 279 // Initialization. Get a pointer to the parameter manager, and
280 // initialize it.
02a27b50 281 AliFMDParameters::Instance()->Init();
ef8e8623 282 if (AliLog::GetDebugLevel("FMD","") >= 15)
283 AliFMDParameters::Instance()->Print("");
42f1b2f5 284 return kTRUE;
285}
286
02a27b50 287//____________________________________________________________________
288UShort_t
ef8e8623 289AliFMDBaseDigitizer::MakePedestal(UShort_t detector,
290 Char_t ring,
291 UShort_t sector,
292 UShort_t strip) const
02a27b50 293{
ef8e8623 294 // Make a pedestal. The pedestal value is drawn from a Gaussian
295 // distribution. The mean of the distribution is the measured
296 // pedestal, and the width is the measured noise.
297 AliFMDParameters* param =AliFMDParameters::Instance();
298 Float_t mean =param->GetPedestal(detector,ring,sector,strip);
299 Float_t width =param->GetPedestalWidth(detector,ring,sector,strip);
300 return UShort_t(TMath::Max(gRandom->Gaus(mean, width), 0.));
02a27b50 301}
302
303//____________________________________________________________________
304void
ef8e8623 305AliFMDBaseDigitizer::AddContribution(UShort_t detector,
306 Char_t ring,
307 UShort_t sector,
308 UShort_t strip,
83ad576a 309 Float_t edep,
b2e6f0b0 310 Bool_t isPrimary,
faf80567 311 Int_t nTrack,
312 Int_t* tracknos)
02a27b50 313{
ef8e8623 314 // Add edep contribution from (detector,ring,sector,strip) to cache
315 AliFMDParameters* param = AliFMDParameters::Instance();
8d00dfa3 316 AliFMDDebug(10, ("Adding contribution %7.5f for FMD%d%c[%2d,%3d] "
317 " from %d tracks (%s)",
318 edep,
319 detector,
320 ring,
321 sector,
322 strip,
323 nTrack,
324 (isPrimary ? "primary" : "secondary")));
ef8e8623 325 // Check if strip is `dead'
326 if (param->IsDead(detector, ring, sector, strip)) {
327 AliFMDDebug(5, ("FMD%d%c[%2d,%3d] is marked as dead",
328 detector, ring, sector, strip));
329 return;
02a27b50 330 }
ef8e8623 331 // Check if strip is out-side read-out range
332 // if (strip < minstrip || strip > maxstrip) {
333 // AliFMDDebug(5, ("FMD%d%c[%2d,%3d] is outside range [%3d,%3d]",
334 // detector,ring,sector,strip,minstrip,maxstrip));
335 // continue;
336 // }
02a27b50 337
b2e6f0b0 338 AliFMDEdepHitPair& entry = fEdep(detector, ring, sector, strip);
339
ef8e8623 340 // Give warning in case of double sdigit
b2e6f0b0 341 if (entry.fEdep != 0)
342 AliFMDDebug(5, ("Double digit in FMD%d%c[%2d,%3d]",
ef8e8623 343 detector, ring, sector, strip));
02a27b50 344
ef8e8623 345 // Sum energy deposition
8d00dfa3 346 Int_t oldN = entry.fN;
b2e6f0b0 347 entry.fEdep += edep;
faf80567 348 entry.fN += nTrack;
349 if (isPrimary) entry.fNPrim += nTrack;
b2e6f0b0 350 if (fStoreTrackRefs) {
8d00dfa3 351 if (entry.fLabels.fN < entry.fN) {
352 AliFMDDebug(15, ("== New label array size %d, was %d, added %d",
353 entry.fN, entry.fLabels.fN, nTrack));
354 entry.fLabels.Set(entry.fN);
355 }
356 for (Int_t i = 0; i < nTrack; i++) {
357 AliFMDDebug(15, ("=> Setting track label # %d", oldN+i));
faf80567 358 entry.fLabels[oldN + i] = tracknos[i];
8d00dfa3 359 AliFMDDebug(15, ("<= Setting track label # %d", oldN+i));
360 }
b2e6f0b0 361 }
8d00dfa3 362 AliFMDDebug(15,("Adding contribution %f to FMD%d%c[%2d,%3d] (%f) track %d",
363 edep, detector, ring, sector, strip,
364 entry.fEdep, (nTrack > 0 ? tracknos[0] : -1)));
83ad576a 365
02a27b50 366}
367
368//____________________________________________________________________
369void
ef8e8623 370AliFMDBaseDigitizer::DigitizeHits() const
02a27b50 371{
372 // For the stored energy contributions in the cache (fEdep), convert
373 // the energy signal to ADC counts, and store the created digit in
374 // the digits array (AliFMD::fDigits)
375 //
42f1b2f5 376 AliFMDDebug(5, ("Will now digitize all the summed signals"));
02a27b50 377 AliFMDGeometry* geometry = AliFMDGeometry::Instance();
378
2aeec17d 379 TArrayI counts(4);
02a27b50 380 for (UShort_t detector=1; detector <= 3; detector++) {
ef8e8623 381 AliFMDDebug(10, ("Processing hits in FMD%d", detector));
02a27b50 382 // Get pointer to subdetector
383 AliFMDDetector* det = geometry->GetDetector(detector);
384 if (!det) continue;
385 for (UShort_t ringi = 0; ringi <= 1; ringi++) {
386 Char_t ring = ringi == 0 ? 'I' : 'O';
ef8e8623 387 AliFMDDebug(10, (" Processing hits in FMD%d%c", detector,ring));
02a27b50 388 // Get pointer to Ring
389 AliFMDRing* r = det->GetRing(ring);
390 if (!r) continue;
391
392 // Get number of sectors
393 UShort_t nSectors = UShort_t(360. / r->GetTheta());
394 // Loop over the number of sectors
395 for (UShort_t sector = 0; sector < nSectors; sector++) {
ef8e8623 396 AliFMDDebug(10, (" Processing hits in FMD%d%c[%2d]",
f95a63c4 397 detector,ring,sector));
02a27b50 398 // Get number of strips
399 UShort_t nStrips = r->GetNStrips();
400 // Loop over the stips
401 Float_t last = 0;
402 for (UShort_t strip = 0; strip < nStrips; strip++) {
403 // Reset the counter array to the invalid value -1
404 counts.Reset(-1);
405 // Reset the last `ADC' value when we've get to the end of a
406 // VA1_ALICE channel.
407 if (strip % 128 == 0) last = 0;
408
b2e6f0b0 409 const AliFMDEdepHitPair& entry = fEdep(detector,ring,sector,strip);
410 Float_t edep = entry.fEdep;
411 UShort_t ntot = entry.fN;
412 UShort_t nprim = entry.fNPrim;
413 const TArrayI& labels = entry.fLabels;
83ad576a 414 if (edep > 0)
415 AliFMDDebug(15, ("Edep = %f for FMD%d%c[%2d,%3d]",
416 edep, detector, ring, sector, strip));
02a27b50 417 ConvertToCount(edep, last, detector, ring, sector, strip, counts);
418 last = edep;
8b26caab 419
83ad576a 420
8b26caab 421 // The following line was introduced - wrongly - by Peter
422 // Hristov. It _will_ break the digitisation and the
423 // following reconstruction. The behviour of the
424 // digitisation models exactly the front-end as it should
425 // (no matter what memory concuption it may entail). The
426 // check should be on zero suppression, since that's what
427 // models the front-end - if zero suppression is turned on
428 // in the front-end, then we can suppress empty digits -
429 // otherwise we shoud never do that. Note, that the line
430 // affects _both_ normal digitisation and digitisation for
431 // summable digits, since the condition is on the energy
432 // deposition and not on the actual number of counts. If
433 // this line should go anywhere, it should be in the
434 // possible overloaded AliFMDSDigitizer::AddDigit - not
435 // here.
436 //
437 // if (edep<=0) continue;
ef8e8623 438 AddDigit(detector, ring, sector, strip, edep,
02a27b50 439 UShort_t(counts[0]), Short_t(counts[1]),
83ad576a 440 Short_t(counts[2]), Short_t(counts[3]),
b2e6f0b0 441 ntot, nprim, labels);
ef8e8623 442 AliFMDDebug(15, (" Adding digit in FMD%d%c[%2d,%3d]=%d",
faf80567 443 detector,ring,sector,strip,counts[0]));
02a27b50 444#if 0
445 // This checks if the digit created will give the `right'
446 // number of particles when reconstructed, using a naiive
447 // approach. It's here only as a quality check - nothing
448 // else.
449 CheckDigit(digit, fEdep(detector, ring, sector, strip).fN,
450 counts);
451#endif
452 } // Strip
453 } // Sector
454 } // Ring
455 } // Detector
456}
457
458//____________________________________________________________________
459void
460AliFMDBaseDigitizer::ConvertToCount(Float_t edep,
461 Float_t last,
462 UShort_t detector,
463 Char_t ring,
464 UShort_t sector,
465 UShort_t strip,
466 TArrayI& counts) const
467{
468 // Convert the total energy deposited to a (set of) ADC count(s).
469 //
470 // This is done by
471 //
472 // Energy_Deposited ALTRO_Channel_Size
473 // ADC = -------------------------- ------------------- + pedestal
474 // Energy_Deposition_Of_1_MIP VA1_ALICE_MIP_Range
475 //
476 // Energy_Deposited fAltroChannelSize
477 // = --------------------------------- ----------------- + pedestal
478 // 1.664 * Si_Thickness * Si_Density fVA1MipRange
479 //
480 //
481 // = Energy_Deposited * ConversionFactor + pedestal
482 //
483 // However, this is modified by the response function of the
484 // VA1_ALICE pre-amp. chip in case we are doing oversampling of the
485 // VA1_ALICE output.
486 //
487 // In that case, we get N=fSampleRate values of the ADC, and the
488 // `EnergyDeposited' is a function of which sample where are
489 // calculating the ADC for
490 //
491 // ADC_i = f(EnergyDeposited, i/N, Last) * ConversionFactor + pedestal
492 //
493 // where Last is the Energy deposited in the previous strip.
494 //
495 // Here, f is the shaping function of the VA1_ALICE. This is given
496 // by
497 //
498 // | (E - l) * (1 - exp(-B * t) + l if E > l
499 // f(E, t, l) = <
500 // | (l - E) * exp(-B * t) + E otherwise
501 //
502 //
503 // = E + (l - E) * ext(-B * t)
504 //
505 AliFMDParameters* param = AliFMDParameters::Instance();
83ad576a 506 Float_t convF = (param->GetDACPerMIP() / param->GetEdepMip() *
507 param->GetPulseGain(detector,ring,sector,strip));
a9579262 508 Int_t ped = MakePedestal(detector,ring,sector,strip);
509 Int_t maxAdc = param->GetAltroChannelSize()-1;
510 if (maxAdc < 0) {
511 AliWarning(Form("Maximum ADC is %d < 0, forcing it to 1023", maxAdc));
512 maxAdc = 1023;
513 }
02a27b50 514 UShort_t rate = param->GetSampleRate(detector,ring,sector,strip);
ef8e8623 515 AliFMDDebug(15, ("Sample rate for FMD%d%c[%2d,%3d] = %d",
83ad576a 516 detector, ring, sector, strip, rate));
ef8e8623 517 if (rate < 1 || rate > 4) {
518 AliWarning(Form("Invalid sample rate for for FMD%d%c[%2d,%3d] = %d",
519 detector, ring, sector, strip, rate));
520 rate = 1;
521 }
522
02a27b50 523 // In case we don't oversample, just return the end value.
524 if (rate == 1) {
a9579262 525 Float_t a = edep * convF + ped;
526 if (a < 0) a = 0;
527 counts[0] = UShort_t(TMath::Min(a, Float_t(maxAdc)));
ef8e8623 528 AliFMDDebug(15, ("FMD%d%c[%2d,%3d]: converting ELoss %f to "
a9579262 529 "ADC %4d (%f,%d)",
530 detector,ring,sector,strip,edep,counts[0],convF,ped));
02a27b50 531 return;
532 }
83ad576a 533
02a27b50 534
535 // Create a pedestal
536 Float_t b = fShapingTime;
537 for (Ssiz_t i = 0; i < rate; i++) {
2aeec17d 538 Float_t t = Float_t(i) / rate + 1./rate;
a9579262 539 Float_t s = edep + (last - edep) * TMath::Exp(-b * t);
540 Float_t a = Int_t(s * convF + ped);
541 if (a < 0) a = 0;
542 counts[i] = UShort_t(TMath::Min(a, Float_t(maxAdc)));
02a27b50 543 }
83ad576a 544 AliFMDDebug(15, ("Converted edep = %f to ADC (%x,%x,%x,%x) "
545 "[gain: %f=(%f/%f*%f), pedestal: %d, rate: %d]",
546 edep, counts[0], counts[1], counts[2], counts[3],
547 convF, param->GetDACPerMIP(),param->GetEdepMip(),
548 param->GetPulseGain(detector,ring,sector,strip),
549 ped, rate));
02a27b50 550}
551
ef8e8623 552//____________________________________________________________________
553void
b2e6f0b0 554AliFMDBaseDigitizer::AddDigit(UShort_t detector,
555 Char_t ring,
556 UShort_t sector,
557 UShort_t strip,
558 Float_t /* edep */,
559 UShort_t count1,
560 Short_t count2,
561 Short_t count3,
562 Short_t count4,
8d00dfa3 563 UShort_t ntot,
b2e6f0b0 564 UShort_t /* nprim */,
faf80567 565 const TArrayI& refs) const
ef8e8623 566{
567 // Add a digit or summable digit
ef8e8623 568 fFMD->AddDigitByFields(detector, ring, sector, strip,
8d00dfa3 569 count1, count2, count3, count4,
570 ntot, fStoreTrackRefs ? refs.fArray : 0);
ef8e8623 571}
02a27b50 572
ef8e8623 573//____________________________________________________________________
574TTree*
575AliFMDBaseDigitizer::MakeOutputTree(AliLoader* loader)
576{
577 // Create output tree using loader. If the passed loader differs
578 // from the currently set loader in the FMD object, reset the FMD
579 // loader to be the passed loader. This is for the cases wher the
580 // output is different from the output.
581 AliFMDDebug(5, ("Making digits tree"));
582 loader->LoadDigits("UPDATE"); // "RECREATE");
583 TTree* out = loader->TreeD();
584 if (!out) loader->MakeTree("D");
585 out = loader->TreeD();
586 if (out) {
587 out->Reset();
588 if (loader != fFMD->GetLoader())
589 fFMD->SetLoader(loader);
590 fFMD->MakeBranch("D");
591 }
592 return out;
593}
594
595//____________________________________________________________________
596void
597AliFMDBaseDigitizer::StoreDigits(AliLoader* loader)
598{
599 // Write the digits to disk
600 AliFMDDebug(5, ("Storing %d digits", fFMD->Digits()->GetEntries()));
601 loader->WriteDigits("OVERWRITE");
602 loader->UnloadDigits();
603 // Reset the digits in the AliFMD object
604 fFMD->ResetDigits();
605}
02a27b50 606
607//____________________________________________________________________
608//
609// EOF
610//
611
612
613
614