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f7336fa3 | 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 | /* | |
17 | $Log$ | |
18 | */ | |
19 | ||
20 | /////////////////////////////////////////////////////////////////////////////// | |
21 | // // | |
22 | // Creates and handles digits from TRD hits // | |
23 | // // | |
24 | // The following effects are included: // | |
25 | // - Diffusion // | |
26 | // - ExB effects // | |
27 | // - Gas gain including fluctuations // | |
28 | // - Pad-response (simple Gaussian approximation) // | |
29 | // - Electronics noise // | |
30 | // - Electronics gain // | |
31 | // - Digitization // | |
32 | // - ADC threshold // | |
33 | // The corresponding parameter can be adjusted via the various // | |
34 | // Set-functions. If these parameters are not explicitly set, default // | |
35 | // values are used (see Init-function). // | |
36 | // To produce digits from a root-file with TRD-hits use the // | |
37 | // slowDigitsCreate.C macro. // | |
38 | // // | |
39 | /////////////////////////////////////////////////////////////////////////////// | |
40 | ||
41 | #include <TMath.h> | |
42 | #include <TVector.h> | |
43 | #include <TRandom.h> | |
44 | ||
45 | #include "AliTRD.h" | |
46 | #include "AliTRDdigitizer.h" | |
47 | #include "AliTRDmatrix.h" | |
48 | ||
49 | ClassImp(AliTRDdigitizer) | |
50 | ||
51 | //_____________________________________________________________________________ | |
52 | AliTRDdigitizer::AliTRDdigitizer():TNamed() | |
53 | { | |
54 | // | |
55 | // AliTRDdigitizer default constructor | |
56 | // | |
57 | ||
58 | fInputFile = NULL; | |
59 | fEvent = 0; | |
60 | ||
61 | } | |
62 | ||
63 | //_____________________________________________________________________________ | |
64 | AliTRDdigitizer::AliTRDdigitizer(const Text_t *name, const Text_t *title) | |
65 | :TNamed(name,title) | |
66 | { | |
67 | // | |
68 | // AliTRDdigitizer default constructor | |
69 | // | |
70 | ||
71 | fInputFile = NULL; | |
72 | fEvent = 0; | |
73 | ||
74 | fDigitsArray = new AliTRDsegmentArray(kNsect*kNplan*kNcham); | |
75 | for (Int_t iDict = 0; iDict < kNDict; iDict++) { | |
76 | fDictionary[iDict] = new AliTRDsegmentArray(kNsect*kNplan*kNcham); | |
77 | } | |
78 | ||
79 | Init(); | |
80 | ||
81 | } | |
82 | ||
83 | //_____________________________________________________________________________ | |
84 | AliTRDdigitizer::~AliTRDdigitizer() | |
85 | { | |
86 | ||
87 | if (fInputFile) { | |
88 | fInputFile->Close(); | |
89 | delete fInputFile; | |
90 | } | |
91 | ||
92 | if (fDigitsArray) { | |
93 | fDigitsArray->Delete(); | |
94 | delete fDigitsArray; | |
95 | } | |
96 | ||
97 | for (Int_t iDict = 0; iDict < kNDict; iDict++) { | |
98 | fDictionary[iDict]->Delete(); | |
99 | delete fDictionary[iDict]; | |
100 | } | |
101 | ||
102 | } | |
103 | ||
104 | //_____________________________________________________________________________ | |
105 | Int_t AliTRDdigitizer::Diffusion(Float_t driftlength, Float_t *xyz) | |
106 | { | |
107 | // | |
108 | // Applies the diffusion smearing to the position of a single electron | |
109 | // | |
110 | ||
111 | Float_t driftSqrt = TMath::Sqrt(driftlength); | |
112 | Float_t sigmaT = driftSqrt * fDiffusionT; | |
113 | Float_t sigmaL = driftSqrt * fDiffusionL; | |
114 | xyz[0] = gRandom->Gaus(xyz[0], sigmaL * fLorentzFactor); | |
115 | xyz[1] = gRandom->Gaus(xyz[1], sigmaT * fLorentzFactor); | |
116 | xyz[2] = gRandom->Gaus(xyz[2], sigmaT); | |
117 | return 1; | |
118 | ||
119 | } | |
120 | ||
121 | //_____________________________________________________________________________ | |
122 | Int_t AliTRDdigitizer::ExB(Float_t driftlength, Float_t *xyz) | |
123 | { | |
124 | // | |
125 | // Applies E x B effects to the position of a single electron | |
126 | // | |
127 | ||
128 | xyz[0] = xyz[0]; | |
129 | xyz[1] = xyz[1] + fLorentzAngle * driftlength; | |
130 | xyz[2] = xyz[2]; | |
131 | ||
132 | return 1; | |
133 | ||
134 | } | |
135 | ||
136 | //_____________________________________________________________________________ | |
137 | void AliTRDdigitizer::Init() | |
138 | { | |
139 | // | |
140 | // Initializes the digitization procedure with standard values | |
141 | // | |
142 | ||
143 | // The default parameter for the digitization | |
144 | fGasGain = 2.0E3; | |
145 | fNoise = 3000.; | |
146 | fChipGain = 10.; | |
147 | fADCoutRange = 255.; | |
148 | fADCinRange = 2000.; | |
149 | fADCthreshold = 1; | |
150 | ||
151 | // Transverse and longitudinal diffusion coefficients (Xe/Isobutane) | |
152 | fDiffusionOn = 1; | |
153 | fDiffusionT = 0.060; | |
154 | fDiffusionL = 0.017; | |
155 | ||
156 | // Propability for electron attachment | |
157 | fElAttachOn = 0; | |
158 | fElAttachProp = 0.0; | |
159 | ||
160 | // E x B effects | |
161 | fExBOn = 0; | |
162 | // omega * tau. (tau ~ 12 * 10^-12, B = 0.2T) | |
163 | fLorentzAngle = 17.6 * 12.0 * 0.2 * 0.01; | |
164 | ||
165 | } | |
166 | ||
167 | //_____________________________________________________________________________ | |
168 | Bool_t AliTRDdigitizer::Open(const Char_t *name, Int_t nEvent) | |
169 | { | |
170 | // | |
171 | // Opens a ROOT-file with TRD-hits and reads in the hit-tree | |
172 | // | |
173 | ||
174 | // Connect the AliRoot file containing Geometry, Kine, and Hits | |
175 | fInputFile = (TFile*) gROOT->GetListOfFiles()->FindObject(name); | |
176 | if (!fInputFile) { | |
177 | printf("AliTRDdigitizer::Open -- "); | |
178 | printf("Open the ALIROOT-file %s.\n",name); | |
179 | fInputFile = new TFile(name,"UPDATE"); | |
180 | } | |
181 | else { | |
182 | printf("AliTRDdigitizer::Open -- "); | |
183 | printf("%s is already open.\n",name); | |
184 | } | |
185 | ||
186 | // Get AliRun object from file or create it if not on file | |
187 | //if (!gAlice) { | |
188 | gAlice = (AliRun*) fInputFile->Get("gAlice"); | |
189 | if (gAlice) { | |
190 | printf("AliTRDdigitizer::Open -- "); | |
191 | printf("AliRun object found on file.\n"); | |
192 | } | |
193 | else { | |
194 | printf("AliTRDdigitizer::Open -- "); | |
195 | printf("Could not find AliRun object.\n"); | |
196 | return kFALSE; | |
197 | } | |
198 | //} | |
199 | ||
200 | fEvent = nEvent; | |
201 | ||
202 | // Import the Trees for the event nEvent in the file | |
203 | Int_t nparticles = gAlice->GetEvent(fEvent); | |
204 | if (nparticles <= 0) { | |
205 | printf("AliTRDdigitizer::Open -- "); | |
206 | printf("No entries in the trees for event %d.\n",fEvent); | |
207 | return kFALSE; | |
208 | } | |
209 | ||
210 | return kTRUE; | |
211 | ||
212 | } | |
213 | ||
214 | //_____________________________________________________________________________ | |
215 | Float_t AliTRDdigitizer::PadResponse(Float_t x) | |
216 | { | |
217 | // | |
218 | // The pad response for the chevron pads. | |
219 | // We use a simple Gaussian approximation which should be good | |
220 | // enough for our purpose. | |
221 | // | |
222 | ||
223 | // The parameters for the response function | |
224 | const Float_t aa = 0.8872; | |
225 | const Float_t bb = -0.00573; | |
226 | const Float_t cc = 0.454; | |
227 | const Float_t cc2 = cc*cc; | |
228 | ||
229 | Float_t pr = aa * (bb + TMath::Exp(-x*x / (2. * cc2))); | |
230 | ||
231 | return (pr); | |
232 | ||
233 | } | |
234 | ||
235 | //_____________________________________________________________________________ | |
236 | Bool_t AliTRDdigitizer::MakeDigits() | |
237 | { | |
238 | // | |
239 | // Loops through the TRD-hits and creates the digits. | |
240 | // | |
241 | ||
242 | // Get the pointer to the detector class and check for version 1 | |
243 | AliTRD *TRD = (AliTRD*) gAlice->GetDetector("TRD"); | |
244 | if (TRD->IsVersion() != 1) { | |
245 | printf("AliTRDdigitizer::MakeDigits -- "); | |
246 | printf("TRD must be version 1 (slow simulator).\n"); | |
247 | return kFALSE; | |
248 | } | |
249 | ||
250 | // Get the geometry | |
251 | AliTRDgeometry *Geo = TRD->GetGeometry(); | |
252 | printf("AliTRDdigitizer::MakeDigits -- "); | |
253 | printf("Geometry version %d\n",Geo->IsVersion()); | |
254 | ||
255 | printf("AliTRDdigitizer::MakeDigits -- "); | |
256 | printf("Start creating digits.\n"); | |
257 | ||
258 | /////////////////////////////////////////////////////////////// | |
259 | // Parameter | |
260 | /////////////////////////////////////////////////////////////// | |
261 | ||
262 | // Converts number of electrons to fC | |
263 | const Float_t el2fC = 1.602E-19 * 1.0E15; | |
264 | ||
265 | /////////////////////////////////////////////////////////////// | |
266 | ||
267 | Int_t iRow, iCol, iTime; | |
268 | Int_t nBytes = 0; | |
269 | ||
270 | Int_t totalSizeDigits = 0; | |
271 | Int_t totalSizeDict0 = 0; | |
272 | Int_t totalSizeDict1 = 0; | |
273 | Int_t totalSizeDict2 = 0; | |
274 | ||
275 | AliTRDhit *Hit; | |
276 | AliTRDdataArray *Digits; | |
277 | AliTRDdataArray *Dictionary[kNDict]; | |
278 | ||
279 | // Get the pointer to the hit tree | |
280 | TTree *HitTree = gAlice->TreeH(); | |
281 | ||
282 | // The Lorentz factor | |
283 | if (fExBOn) { | |
284 | fLorentzFactor = 1.0 / (1.0 + fLorentzAngle*fLorentzAngle); | |
285 | } | |
286 | else { | |
287 | fLorentzFactor = 1.0; | |
288 | } | |
289 | ||
290 | // Get the number of entries in the hit tree | |
291 | // (Number of primary particles creating a hit somewhere) | |
292 | Int_t nTrack = (Int_t) HitTree->GetEntries(); | |
293 | ||
294 | Int_t chamBeg = 0; | |
295 | Int_t chamEnd = kNcham; | |
296 | if (TRD->GetSensChamber() >= 0) { | |
297 | chamBeg = TRD->GetSensChamber(); | |
298 | chamEnd = chamEnd + 1; | |
299 | } | |
300 | Int_t planBeg = 0; | |
301 | Int_t planEnd = kNplan; | |
302 | if (TRD->GetSensPlane() >= 0) { | |
303 | planBeg = TRD->GetSensPlane(); | |
304 | planEnd = planBeg + 1; | |
305 | } | |
306 | Int_t sectBeg = 0; | |
307 | Int_t sectEnd = kNsect; | |
308 | if (TRD->GetSensSector() >= 0) { | |
309 | sectBeg = TRD->GetSensSector(); | |
310 | sectEnd = sectBeg + 1; | |
311 | } | |
312 | ||
313 | // Loop through all the chambers | |
314 | for (Int_t iCham = chamBeg; iCham < chamEnd; iCham++) { | |
315 | for (Int_t iPlan = planBeg; iPlan < planEnd; iPlan++) { | |
316 | for (Int_t iSect = sectBeg; iSect < sectEnd; iSect++) { | |
317 | ||
318 | Int_t nDigits = 0; | |
319 | ||
320 | Int_t iDet = Geo->GetDetector(iPlan,iCham,iSect); | |
321 | ||
322 | printf("AliTRDdigitizer::MakeDigits -- "); | |
323 | printf("Digitizing chamber %d, plane %d, sector %d.\n" | |
324 | ,iCham,iPlan,iSect); | |
325 | ||
326 | Int_t nRowMax = Geo->GetRowMax(iPlan,iCham,iSect); | |
327 | Int_t nColMax = Geo->GetColMax(iPlan); | |
328 | Int_t nTimeMax = Geo->GetTimeMax(); | |
329 | Float_t row0 = Geo->GetRow0(iPlan,iCham,iSect); | |
330 | Float_t col0 = Geo->GetCol0(iPlan); | |
331 | Float_t time0 = Geo->GetTime0(iPlan); | |
332 | Float_t rowPadSize = Geo->GetRowPadSize(); | |
333 | Float_t colPadSize = Geo->GetColPadSize(); | |
334 | Float_t timeBinSize = Geo->GetTimeBinSize(); | |
335 | ||
336 | // Create a detector matrix to keep the signal and track numbers | |
337 | AliTRDmatrix *Matrix = new AliTRDmatrix(nRowMax,nColMax,nTimeMax | |
338 | ,iSect,iCham,iPlan); | |
339 | ||
340 | // Loop through all entries in the tree | |
341 | for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) { | |
342 | ||
343 | gAlice->ResetHits(); | |
344 | nBytes += HitTree->GetEvent(iTrack); | |
345 | ||
346 | // Get the number of hits in the TRD created by this particle | |
347 | Int_t nHit = TRD->Hits()->GetEntriesFast(); | |
348 | ||
349 | // Loop through the TRD hits | |
350 | for (Int_t iHit = 0; iHit < nHit; iHit++) { | |
351 | ||
352 | if (!(Hit = (AliTRDhit *) TRD->Hits()->UncheckedAt(iHit))) | |
353 | continue; | |
354 | ||
355 | Float_t pos[3]; | |
356 | pos[0] = Hit->fX; | |
357 | pos[1] = Hit->fY; | |
358 | pos[2] = Hit->fZ; | |
359 | Float_t q = Hit->fQ; | |
360 | Int_t track = Hit->fTrack; | |
361 | Int_t detector = Hit->fDetector; | |
362 | Int_t plane = Geo->GetPlane(detector); | |
363 | Int_t sector = Geo->GetSector(detector); | |
364 | Int_t chamber = Geo->GetChamber(detector); | |
365 | ||
366 | if ((sector != iSect) || | |
367 | (plane != iPlan) || | |
368 | (chamber != iCham)) | |
369 | continue; | |
370 | ||
371 | // Rotate the sectors on top of each other | |
372 | Float_t rot[3]; | |
373 | Geo->Rotate(detector,pos,rot); | |
374 | ||
375 | // The hit position in pad coordinates (center pad) | |
376 | // The pad row (z-direction) | |
377 | Int_t rowH = (Int_t) ((rot[2] - row0) / rowPadSize); | |
378 | // The pad column (rphi-direction) | |
379 | Int_t colH = (Int_t) ((rot[1] - col0) / colPadSize); | |
380 | // The time bucket | |
381 | Int_t timeH = (Int_t) ((rot[0] - time0) / timeBinSize); | |
382 | ||
383 | // Array to sum up the signal in a box surrounding the | |
384 | // hit postition | |
385 | const Int_t timeBox = 7; | |
386 | const Int_t colBox = 9; | |
387 | const Int_t rowBox = 7; | |
388 | Float_t signalSum[rowBox][colBox][timeBox]; | |
389 | for (iRow = 0; iRow < rowBox; iRow++ ) { | |
390 | for (iCol = 0; iCol < colBox; iCol++ ) { | |
391 | for (iTime = 0; iTime < timeBox; iTime++) { | |
392 | signalSum[iRow][iCol][iTime] = 0; | |
393 | } | |
394 | } | |
395 | } | |
396 | ||
397 | // Loop over all electrons of this hit | |
398 | Int_t nEl = (Int_t) q; | |
399 | for (Int_t iEl = 0; iEl < nEl; iEl++) { | |
400 | ||
401 | // The driftlength | |
402 | Float_t driftlength = rot[0] - time0; | |
403 | if ((driftlength < 0) || | |
404 | (driftlength > kDrThick)) break; | |
405 | Float_t driftlengthL = driftlength; | |
406 | if (fExBOn) driftlengthL /= TMath::Sqrt(fLorentzFactor); | |
407 | Float_t xyz[3]; | |
408 | xyz[0] = rot[0]; | |
409 | xyz[1] = rot[1]; | |
410 | xyz[2] = rot[2]; | |
411 | ||
412 | // Electron attachment | |
413 | if (fElAttachOn) { | |
414 | if (gRandom->Rndm() < (driftlengthL * fElAttachProp / 100.)) continue; | |
415 | } | |
416 | ||
417 | // Apply the diffusion smearing | |
418 | if (fDiffusionOn) { | |
419 | if (!(Diffusion(driftlengthL,xyz))) continue; | |
420 | } | |
421 | ||
422 | // Apply E x B effects | |
423 | if (fExBOn) { | |
424 | if (!(ExB(driftlength,xyz))) continue; | |
425 | } | |
426 | ||
427 | // The electron position and the distance to the hit position | |
428 | // in pad units | |
429 | // The pad row (z-direction) | |
430 | Int_t rowE = (Int_t) ((xyz[2] - row0) / rowPadSize); | |
431 | Int_t rowD = rowH - rowE; | |
432 | // The pad column (rphi-direction) | |
433 | Int_t colE = (Int_t) ((xyz[1] - col0) / colPadSize); | |
434 | Int_t colD = colH - colE; | |
435 | // The time bucket | |
436 | Int_t timeE = (Int_t) ((xyz[0] - time0) / timeBinSize); | |
437 | Int_t timeD = timeH - timeE; | |
438 | ||
439 | // Apply the gas gain including fluctuations | |
440 | Int_t signal = (Int_t) (-fGasGain * TMath::Log(gRandom->Rndm())); | |
441 | ||
442 | // The distance of the electron to the center of the pad | |
443 | // in units of pad width | |
444 | Float_t dist = (xyz[1] - col0 - (colE + 0.5) * colPadSize) | |
445 | / colPadSize; | |
446 | ||
447 | // Sum up the signal in the different pixels | |
448 | // and apply the pad response | |
449 | Int_t rowIdx = rowD + (Int_t) ( rowBox / 2); | |
450 | Int_t colIdx = colD + (Int_t) ( colBox / 2); | |
451 | Int_t timeIdx = timeD + (Int_t) (timeBox / 2); | |
452 | ||
453 | if (( rowIdx < 0) || ( rowIdx > rowBox)) { | |
454 | printf("AliTRDdigitizer::MakeDigits -- "); | |
455 | printf("Boundary error. rowIdx = %d (%d)\n", rowIdx, rowBox); | |
456 | continue; | |
457 | } | |
458 | if (( colIdx < 0) || ( colIdx > colBox)) { | |
459 | printf("AliTRDdigitizer::MakeDigits -- "); | |
460 | printf("Boundary error. colIdx = %d (%d)\n", colIdx, colBox); | |
461 | continue; | |
462 | } | |
463 | if ((timeIdx < 0) || (timeIdx > timeBox)) { | |
464 | printf("AliTRDdigitizer::MakeDigits -- "); | |
465 | printf("Boundary error. timeIdx = %d (%d)\n",timeIdx,timeBox); | |
466 | continue; | |
467 | } | |
468 | signalSum[rowIdx][colIdx-1][timeIdx] += PadResponse(dist-1.) * signal; | |
469 | signalSum[rowIdx][colIdx ][timeIdx] += PadResponse(dist ) * signal; | |
470 | signalSum[rowIdx][colIdx+1][timeIdx] += PadResponse(dist+1.) * signal; | |
471 | ||
472 | } | |
473 | ||
474 | // Add the padcluster to the detector matrix | |
475 | for (iRow = 0; iRow < rowBox; iRow++ ) { | |
476 | for (iCol = 0; iCol < colBox; iCol++ ) { | |
477 | for (iTime = 0; iTime < timeBox; iTime++) { | |
478 | ||
479 | Int_t rowB = rowH + iRow - (Int_t) ( rowBox / 2); | |
480 | Int_t colB = colH + iCol - (Int_t) ( colBox / 2); | |
481 | Int_t timeB = timeH + iTime - (Int_t) (timeBox / 2); | |
482 | ||
483 | Float_t signalB = signalSum[iRow][iCol][iTime]; | |
484 | if (signalB > 0.0) { | |
485 | Matrix->AddSignal(rowB,colB,timeB,signalB); | |
486 | if (!(Matrix->AddTrack(rowB,colB,timeB,track))) { | |
487 | printf("AliTRDdigitizer::MakeDigits -- "); | |
488 | printf("More than three tracks in a pixel!\n"); | |
489 | } | |
490 | } | |
491 | ||
492 | } | |
493 | } | |
494 | } | |
495 | ||
496 | } | |
497 | ||
498 | } | |
499 | ||
500 | // Add a container for the digits of this detector | |
501 | Digits = (AliTRDdataArray *) fDigitsArray->At(iDet); | |
502 | // Allocate memory space for the digits buffer | |
503 | Digits->Allocate(nRowMax,nColMax,nTimeMax); | |
504 | ||
505 | for (Int_t iDict = 0; iDict < kNDict; iDict++) { | |
506 | Dictionary[iDict] = (AliTRDdataArray *) fDictionary[iDict]->At(iDet); | |
507 | Dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeMax); | |
508 | } | |
509 | ||
510 | // Create the hits for this chamber | |
511 | for (iRow = 0; iRow < nRowMax; iRow++ ) { | |
512 | for (iCol = 0; iCol < nColMax; iCol++ ) { | |
513 | for (iTime = 0; iTime < nTimeMax; iTime++) { | |
514 | ||
515 | Float_t signalAmp = Matrix->GetSignal(iRow,iCol,iTime); | |
516 | ||
517 | // Add the noise | |
518 | signalAmp = TMath::Max(gRandom->Gaus(signalAmp,fNoise),(Float_t) 0.0); | |
519 | // Convert to fC | |
520 | signalAmp *= el2fC; | |
521 | // Convert to mV | |
522 | signalAmp *= fChipGain; | |
523 | // Convert to ADC counts | |
524 | Int_t adc = (Int_t) (signalAmp * (fADCoutRange / fADCinRange)); | |
525 | ||
526 | // Store the amplitude of the digit | |
527 | Digits->SetData(iRow,iCol,iTime,adc); | |
528 | ||
529 | // Store the track index in the dictionary | |
530 | // Note: We store index+1 in order to allow the array to be compressed | |
531 | for (Int_t iDict = 0; iDict < kNDict; iDict++) { | |
532 | Dictionary[iDict]->SetData(iRow,iCol,iTime | |
533 | ,Matrix->GetTrack(iRow,iCol,iTime,iDict)+1); | |
534 | } | |
535 | ||
536 | if (adc > fADCthreshold) nDigits++; | |
537 | ||
538 | } | |
539 | } | |
540 | } | |
541 | ||
542 | // Compress the arrays | |
543 | Digits->Compress(1,fADCthreshold); | |
544 | for (Int_t iDict = 0; iDict < kNDict; iDict++) { | |
545 | Dictionary[iDict]->Compress(1,0); | |
546 | } | |
547 | ||
548 | totalSizeDigits += Digits->GetSize(); | |
549 | totalSizeDict0 += Dictionary[0]->GetSize(); | |
550 | totalSizeDict1 += Dictionary[1]->GetSize(); | |
551 | totalSizeDict2 += Dictionary[2]->GetSize(); | |
552 | ||
553 | printf("AliTRDdigitizer::MakeDigits -- "); | |
554 | printf("Number of digits found: %d.\n",nDigits); | |
555 | ||
556 | // Clean up | |
557 | if (Matrix) delete Matrix; | |
558 | ||
559 | } | |
560 | } | |
561 | } | |
562 | ||
563 | printf("AliTRDdigitizer::MakeDigits -- "); | |
564 | printf("Total digits data size = %d, %d, %d, %d\n",totalSizeDigits | |
565 | ,totalSizeDict0 | |
566 | ,totalSizeDict1 | |
567 | ,totalSizeDict2); | |
568 | ||
569 | return kTRUE; | |
570 | ||
571 | } | |
572 | ||
573 | //_____________________________________________________________________________ | |
574 | Bool_t AliTRDdigitizer::MakeBranch() | |
575 | { | |
576 | // | |
577 | // Creates the branches for the digits and the dictionary | |
578 | // | |
579 | ||
580 | Int_t buffersize = 64000; | |
581 | ||
582 | Bool_t status = kTRUE; | |
583 | ||
584 | if (gAlice->TreeD()) { | |
585 | ||
586 | // Make the branch for the digits | |
587 | if (fDigitsArray) { | |
588 | const AliTRDdataArray *Digits = | |
589 | (AliTRDdataArray *) fDigitsArray->At(0); | |
590 | if (Digits) { | |
591 | gAlice->TreeD()->Branch("TRDdigits",Digits->IsA()->GetName() | |
592 | ,&Digits,buffersize,1); | |
593 | printf("AliTRDdigitizer::MakeBranch -- "); | |
594 | printf("Making branch TRDdigits\n"); | |
595 | } | |
596 | else { | |
597 | status = kFALSE; | |
598 | } | |
599 | } | |
600 | else { | |
601 | status = kFALSE; | |
602 | } | |
603 | ||
604 | // Make the branches for the dictionaries | |
605 | for (Int_t iDict = 0; iDict < kNDict; iDict++) { | |
606 | ||
607 | Char_t branchname[15]; | |
608 | sprintf(branchname,"TRDdictionary%d",iDict); | |
609 | if (fDictionary[iDict]) { | |
610 | const AliTRDdataArray *Dictionary = | |
611 | (AliTRDdataArray *) fDictionary[iDict]->At(0); | |
612 | if (Dictionary) { | |
613 | gAlice->TreeD()->Branch(branchname,Dictionary->IsA()->GetName() | |
614 | ,&Dictionary,buffersize,1); | |
615 | printf("AliTRDdigitizer::MakeBranch -- "); | |
616 | printf("Making branch %s\n",branchname); | |
617 | } | |
618 | else { | |
619 | status = kFALSE; | |
620 | } | |
621 | } | |
622 | else { | |
623 | status = kFALSE; | |
624 | } | |
625 | } | |
626 | ||
627 | } | |
628 | else { | |
629 | status = kFALSE; | |
630 | } | |
631 | ||
632 | return status; | |
633 | ||
634 | } | |
635 | ||
636 | //_____________________________________________________________________________ | |
637 | Bool_t AliTRDdigitizer::WriteDigits() | |
638 | { | |
639 | // | |
640 | // Writes out the TRD-digits and the dictionaries | |
641 | // | |
642 | ||
643 | // Create the branches | |
644 | if (!(gAlice->TreeD()->GetBranch("TRDdigits"))) { | |
645 | if (!MakeBranch()) return kFALSE; | |
646 | } | |
647 | ||
648 | // Store the contents of the segment array in the tree | |
649 | if (!fDigitsArray->StoreArray("TRDdigits")) { | |
650 | printf("AliTRDdigitizer::WriteDigits -- "); | |
651 | printf("Error while storing digits in branch TRDdigits\n"); | |
652 | return kFALSE; | |
653 | } | |
654 | for (Int_t iDict = 0; iDict < kNDict; iDict++) { | |
655 | Char_t branchname[15]; | |
656 | sprintf(branchname,"TRDdictionary%d",iDict); | |
657 | if (!fDictionary[iDict]->StoreArray(branchname)) { | |
658 | printf("AliTRDdigitizer::WriteDigits -- "); | |
659 | printf("Error while storing dictionary in branch %s\n",branchname); | |
660 | return kFALSE; | |
661 | } | |
662 | } | |
663 | ||
664 | // Write the new tree into the input file (use overwrite option) | |
665 | Char_t treeName[7]; | |
666 | sprintf(treeName,"TreeD%d",fEvent); | |
667 | printf("AliTRDdigitizer::WriteDigits -- "); | |
668 | printf("Write the digits tree %s for event %d.\n" | |
669 | ,treeName,fEvent); | |
670 | gAlice->TreeD()->Write(treeName,2); | |
671 | ||
672 | return kTRUE; | |
673 | ||
674 | } | |
675 | ||
676 | ClassImp(AliTRDdigit) | |
677 | ||
678 | //_____________________________________________________________________________ | |
679 | AliTRDdigit::AliTRDdigit(Int_t *digits):AliDigitNew() | |
680 | { | |
681 | // | |
682 | // Create a TRD digit | |
683 | // | |
684 | ||
685 | // Store the volume hierarchy | |
686 | fDetector = digits[0]; | |
687 | ||
688 | // Store the row, pad, and time bucket number | |
689 | fRow = digits[1]; | |
690 | fCol = digits[2]; | |
691 | fTime = digits[3]; | |
692 | ||
693 | // Store the signal amplitude | |
694 | fAmplitude = digits[4]; | |
695 | ||
696 | } |