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1 | /************************************************************************** | |
2 | * Copyright(c) 1998-2000, 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 | // // | |
18 | // This is a TTask that makes TOF-Digits out of TOF-SDigits. // | |
19 | // The simulation of the detector is performed at sdigits level: // | |
20 | // during digitization the unique task is the sum of all sdigits in the // | |
21 | // same pad. // | |
22 | // Digits are written to TreeD in branch "TOF". // | |
23 | // // | |
24 | // -- Author : F. Pierella (Bologna University) pierella@bo.infn.it // | |
25 | // // | |
26 | //_________________________________________________________________________// | |
27 | ||
28 | //#include "Riostream.h" | |
29 | ||
30 | //#include "TFile.h" | |
31 | #include "TMath.h" | |
32 | #include "TH1F.h" | |
33 | #include "TTree.h" | |
34 | #include "TRandom.h" | |
35 | #include "TObjArray.h" | |
36 | ||
37 | #include "AliLoader.h" | |
38 | #include "AliLog.h" | |
39 | #include "AliRunDigitizer.h" | |
40 | #include "AliRunLoader.h" | |
41 | #include "AliRun.h" | |
42 | ||
43 | #include "AliTOFcalib.h" | |
44 | //#include "AliTOFChannelOnlineArray.h" | |
45 | //#include "AliTOFChannelOnlineStatusArray.h" | |
46 | //#include "AliTOFChannelOffline.h" | |
47 | #include "AliTOFDigitizer.h" | |
48 | #include "AliTOFdigit.h" | |
49 | #include "AliTOFHitMap.h" | |
50 | #include "AliTOFGeometry.h" | |
51 | #include "AliTOFSDigit.h" | |
52 | #include "AliTOF.h" | |
53 | ||
54 | extern TDirectory *gDirectory; | |
55 | //extern TFile *gFile; | |
56 | extern TRandom *gRandom; | |
57 | ||
58 | extern AliRun *gAlice; | |
59 | ||
60 | ||
61 | ClassImp(AliTOFDigitizer) | |
62 | ||
63 | //___________________________________________ | |
64 | AliTOFDigitizer::AliTOFDigitizer() : | |
65 | AliDigitizer(), | |
66 | fDigits(new TClonesArray("AliTOFdigit",4000)), | |
67 | fSDigitsArray(new TClonesArray("AliTOFSDigit",1000)), | |
68 | fhitMap(0x0), | |
69 | fCalib(new AliTOFcalib()) | |
70 | { | |
71 | // Default ctor - don't use it | |
72 | InitDecalibration(); | |
73 | } | |
74 | ||
75 | //___________________________________________ | |
76 | AliTOFDigitizer::AliTOFDigitizer(AliRunDigitizer* manager): | |
77 | AliDigitizer(manager), | |
78 | fDigits(new TClonesArray("AliTOFdigit",4000)), | |
79 | fSDigitsArray(new TClonesArray("AliTOFSDigit",1000)), | |
80 | fhitMap(0x0), | |
81 | fCalib(new AliTOFcalib()) | |
82 | { | |
83 | //ctor with RunDigitizer | |
84 | InitDecalibration(); | |
85 | } | |
86 | ||
87 | //------------------------------------------------------------------------ | |
88 | AliTOFDigitizer::AliTOFDigitizer(const AliTOFDigitizer &source): | |
89 | AliDigitizer(source), | |
90 | fDigits(source.fDigits), | |
91 | fSDigitsArray(source.fSDigitsArray), | |
92 | fhitMap(source.fhitMap), | |
93 | fCalib(source.fCalib) | |
94 | { | |
95 | // copy constructor | |
96 | } | |
97 | ||
98 | //------------------------------------------------------------------------ | |
99 | AliTOFDigitizer& AliTOFDigitizer::operator=(const AliTOFDigitizer &source) | |
100 | { | |
101 | // ass. op. | |
102 | ||
103 | if (this == &source) | |
104 | return *this; | |
105 | ||
106 | AliDigitizer::operator=(source); | |
107 | fDigits=source.fDigits; | |
108 | fSDigitsArray=source.fSDigitsArray; | |
109 | fhitMap=source.fhitMap; | |
110 | fCalib=source.fCalib; | |
111 | return *this; | |
112 | ||
113 | } | |
114 | ||
115 | //------------------------------------------------------------------------ | |
116 | AliTOFDigitizer::~AliTOFDigitizer() | |
117 | { | |
118 | // Destructor | |
119 | delete fCalib; | |
120 | if (fDigits){ | |
121 | fDigits->Delete(); | |
122 | delete fDigits; | |
123 | fDigits=0x0; | |
124 | } | |
125 | if (fSDigitsArray){ | |
126 | fSDigitsArray->Delete(); | |
127 | delete fSDigitsArray; | |
128 | fSDigitsArray=0x0; | |
129 | } | |
130 | } | |
131 | ||
132 | //--------------------------------------------------------------------- | |
133 | ||
134 | void AliTOFDigitizer::Exec(Option_t* /*option*/) | |
135 | { | |
136 | // | |
137 | // Perform digitization and merging. | |
138 | // The algorithm is the following: | |
139 | // - a hitmap is created to check if a pad is already activated; | |
140 | // - an sdigits container is created to collect all sdigits from | |
141 | // different files; | |
142 | // - sdigits are summed using the hitmap; | |
143 | // - the sdigits container is used to create the array of AliTOFdigit. | |
144 | // | |
145 | ||
146 | AliDebug(1, ""); | |
147 | ||
148 | ||
149 | // get the ptr to TOF detector | |
150 | AliTOF * tof = (AliTOF *) gAlice->GetDetector("TOF") ; | |
151 | ||
152 | //Make branches | |
153 | char branchname[20]; | |
154 | sprintf (branchname, "%s", tof->GetName ()); | |
155 | ||
156 | AliRunLoader* outrl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName()); | |
157 | if (outrl == 0x0) | |
158 | { | |
159 | AliError("Can not find Run Loader in output folder."); | |
160 | return; | |
161 | } | |
162 | ||
163 | AliLoader* outgime = outrl->GetLoader("TOFLoader"); | |
164 | if (outgime == 0x0) | |
165 | { | |
166 | AliError("Can not get TOF Loader from Output Run Loader."); | |
167 | return; | |
168 | } | |
169 | ||
170 | TTree* treeD = outgime->TreeD(); | |
171 | if (treeD == 0x0) | |
172 | { | |
173 | outgime->MakeTree("D"); | |
174 | treeD = outgime->TreeD(); | |
175 | } | |
176 | //Make branch for digits (to be created in Init()) | |
177 | tof->MakeBranchInTree(treeD,branchname,&fDigits,4000); | |
178 | ||
179 | // container for all summed sdigits (to be created in Init()) | |
180 | //fSDigitsArray=new TClonesArray("AliTOFSDigit",1000); | |
181 | ||
182 | // create hit map (to be created in Init()) | |
183 | fhitMap = new AliTOFHitMap(fSDigitsArray); | |
184 | ||
185 | // Loop over files to digitize | |
186 | ||
187 | for (Int_t inputFile=0; inputFile<fManager->GetNinputs(); | |
188 | inputFile++) { | |
189 | ReadSDigit(inputFile); | |
190 | } | |
191 | ||
192 | // create digits | |
193 | CreateDigits(); | |
194 | ||
195 | // free used memory for Hit Map in current event | |
196 | delete fhitMap; | |
197 | fSDigitsArray->Clear(); | |
198 | ||
199 | treeD->Fill(); | |
200 | ||
201 | AliDebug(2,"----------------------------------------"); | |
202 | AliDebug(1,Form("%d digits have been created", fDigits->GetEntriesFast())); | |
203 | AliDebug(2,"----------------------------------------"); | |
204 | ||
205 | outgime->WriteDigits("OVERWRITE"); | |
206 | outgime->UnloadDigits(); | |
207 | fDigits->Clear(); | |
208 | ||
209 | } | |
210 | ||
211 | //--------------------------------------------------------------------- | |
212 | ||
213 | void AliTOFDigitizer::CreateDigits() | |
214 | { | |
215 | // loop on sdigits container to fill the AliTOFdigit TClonesArray | |
216 | // start digitizing all the collected sdigits | |
217 | ||
218 | Int_t ndump=0; // dump the first ndump created digits for each event | |
219 | ||
220 | // get the total number of collected sdigits | |
221 | Int_t ndig = fSDigitsArray->GetEntriesFast(); | |
222 | ||
223 | Int_t vol[5]={-1,-1,-1,-1,-1}; // location for a digit | |
224 | Int_t digit[4] = {0,0,0,0}; // TOF digit variables | |
225 | Int_t tracknum[AliTOFSDigit::kMAXDIGITS]; // contributing tracks for the current slot | |
226 | for (Int_t aa=0; aa<AliTOFSDigit::kMAXDIGITS; aa++) tracknum[aa] = -1; | |
227 | ||
228 | for (Int_t k = 0; k < ndig; k++) { | |
229 | ||
230 | for (Int_t i=0; i<5; i++) vol[i] = -1; | |
231 | ||
232 | // Get the information for this digit | |
233 | AliTOFSDigit *tofsdigit = (AliTOFSDigit *) fSDigitsArray->UncheckedAt(k); | |
234 | ||
235 | Int_t nslot=tofsdigit->GetNDigits(); // get the number of slots | |
236 | // for current sdigit | |
237 | ||
238 | // TOF sdigit volumes (always the same for all slots) | |
239 | Int_t sector = tofsdigit->GetSector(); // range [0-17] | |
240 | Int_t plate = tofsdigit->GetPlate(); // range [0- 4] | |
241 | Int_t strip = tofsdigit->GetStrip(); // range [0-14/18/19] | |
242 | Int_t padz = tofsdigit->GetPadz(); // range [0- 1] | |
243 | Int_t padx = tofsdigit->GetPadx(); // range [0-47] | |
244 | ||
245 | vol[0] = sector; | |
246 | vol[1] = plate; | |
247 | vol[2] = strip; | |
248 | vol[3] = padx; | |
249 | vol[4] = padz; | |
250 | ||
251 | //--------------------- QA section ---------------------- | |
252 | // in the while, I perform QA | |
253 | Bool_t isSDigitBad = (sector<0 || sector>17 || plate<0 || plate >4 || padz<0 || padz>1 || padx<0 || padx>47); | |
254 | ||
255 | if (isSDigitBad) | |
256 | AliFatal(Form("strange sdigit found %2d %1d %2d %1d %2d", sector, plate, strip, padz, padx)); | |
257 | //------------------------------------------------------- | |
258 | ||
259 | //------------------- Dump section ---------------------- | |
260 | if (k<ndump) { | |
261 | AliInfo(Form("%2d-th digit: Sector %2d | Plate %1d | Strip %2d | PadZ %1d | PadX %2d ", k, sector, plate, strip, padz, padx)); | |
262 | AliInfo("----------------------------------------------------"); | |
263 | } | |
264 | // ------------------------------------------------------ | |
265 | ||
266 | // start loop on number of slots for current sdigit | |
267 | for (Int_t islot = 0; islot < nslot; islot++) { | |
268 | for (Int_t aa=0; aa<4; aa++) digit[aa] = 0; // TOF digit variables | |
269 | for (Int_t aa=0; aa<AliTOFSDigit::kMAXDIGITS; aa++) tracknum[aa] = -1; | |
270 | ||
271 | Int_t tdc=tofsdigit->GetTdc(islot); digit[0]=tdc; | |
272 | Int_t adc=tofsdigit->GetAdc(islot); digit[1]=adc; | |
273 | ||
274 | //if (tdc>=8192) continue;//AdC | |
275 | ||
276 | tracknum[0]=tofsdigit->GetTrack(islot,0); | |
277 | tracknum[1]=tofsdigit->GetTrack(islot,1); | |
278 | tracknum[2]=tofsdigit->GetTrack(islot,2); | |
279 | ||
280 | // new with placement must be used | |
281 | // adding a TOF digit for each slot | |
282 | TClonesArray &aDigits = *fDigits; | |
283 | Int_t last=fDigits->GetEntriesFast(); | |
284 | new (aDigits[last]) AliTOFdigit(tracknum, vol, digit); | |
285 | ||
286 | } | |
287 | ||
288 | } // end loop on sdigits - end digitizing all collected sdigits | |
289 | ||
290 | //Insert Decalibration | |
291 | AliDebug(2,"in digitizer, create digits"); | |
292 | DecalibrateTOFSignal(); | |
293 | } | |
294 | ||
295 | //--------------------------------------------------------------------- | |
296 | ||
297 | void AliTOFDigitizer::ReadSDigit(Int_t inputFile ) | |
298 | { | |
299 | // Read sdigits for current event and inputFile; | |
300 | // store them into the sdigits container | |
301 | // and update the hit map | |
302 | // SDigits from different files are assumed to | |
303 | // be created with the same simulation parameters. | |
304 | ||
305 | // creating the TClonesArray to store the digits | |
306 | static TClonesArray sdigitsClonesArray("AliTOFSDigit", 1000); | |
307 | sdigitsClonesArray.Clear(); | |
308 | ||
309 | // get the treeS from manager | |
310 | AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile)); | |
311 | if (rl == 0x0) | |
312 | { | |
313 | AliError(Form("Can not find Run Loader in input %d folder.",inputFile)); | |
314 | return; | |
315 | } | |
316 | ||
317 | AliLoader* gime = rl->GetLoader("TOFLoader"); | |
318 | if (gime == 0x0) | |
319 | { | |
320 | AliError(Form("Can not get TOF Loader from Input %d Run Loader.",inputFile)); | |
321 | return; | |
322 | } | |
323 | ||
324 | TTree* currentTreeS=gime->TreeS(); | |
325 | if (currentTreeS == 0x0) | |
326 | { | |
327 | Int_t retval = gime->LoadSDigits(); | |
328 | if (retval) | |
329 | { | |
330 | AliError(Form("Error occured while loading S. Digits for Input %d",inputFile)); | |
331 | return; | |
332 | } | |
333 | currentTreeS=gime->TreeS(); | |
334 | if (currentTreeS == 0x0) | |
335 | { | |
336 | AliError(Form("Can not get S. Digits Tree for Input %d",inputFile)); | |
337 | return; | |
338 | } | |
339 | } | |
340 | // get the branch TOF inside the treeS | |
341 | TClonesArray * sdigitsDummyContainer=&sdigitsClonesArray; | |
342 | // check if the branch exist | |
343 | TBranch* tofBranch=currentTreeS->GetBranch("TOF"); | |
344 | ||
345 | if(!tofBranch){ | |
346 | AliFatal(Form("TOF branch not found for input %d",inputFile)); | |
347 | } | |
348 | ||
349 | tofBranch->SetAddress(&sdigitsDummyContainer); | |
350 | ||
351 | Int_t nEntries = (Int_t)tofBranch->GetEntries(); | |
352 | ||
353 | // Loop through all entries in the tree | |
354 | Int_t nbytes = 0; | |
355 | ||
356 | Int_t vol[5]; // location for a sdigit | |
357 | for (Int_t i=0; i<5; i++) vol[i] = -1; | |
358 | ||
359 | for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) { | |
360 | ||
361 | // Import the tree | |
362 | nbytes += tofBranch->GetEvent(iEntry); | |
363 | ||
364 | // Get the number of sdigits | |
365 | Int_t ndig = sdigitsDummyContainer->GetEntriesFast(); | |
366 | ||
367 | for (Int_t k=0; k<ndig; k++) { | |
368 | AliTOFSDigit *tofSdigit= (AliTOFSDigit*) sdigitsDummyContainer->UncheckedAt(k); | |
369 | ||
370 | for (Int_t i=0; i<5; i++) vol[i] = -1; | |
371 | ||
372 | // check the sdigit volume | |
373 | vol[0] = tofSdigit->GetSector(); | |
374 | vol[1] = tofSdigit->GetPlate(); | |
375 | vol[2] = tofSdigit->GetStrip(); | |
376 | vol[3] = tofSdigit->GetPadx(); | |
377 | vol[4] = tofSdigit->GetPadz(); | |
378 | ||
379 | if (fhitMap->TestHit(vol) != kEmpty) { | |
380 | AliTOFSDigit *sdig = static_cast<AliTOFSDigit*>(fhitMap->GetHit(vol)); | |
381 | sdig->Update(tofSdigit); | |
382 | ||
383 | } else { | |
384 | ||
385 | CollectSDigit(tofSdigit); // collect the current sdigit | |
386 | fhitMap->SetHit(vol); // update the hitmap for location vol | |
387 | ||
388 | } // if (hitMap->TestHit(vol) != kEmpty) | |
389 | ||
390 | } // for (Int_t k=0; k<ndig; k++) | |
391 | ||
392 | } // end loop on entries | |
393 | ||
394 | } | |
395 | ||
396 | ||
397 | //_____________________________________________________________________________ | |
398 | void AliTOFDigitizer::CollectSDigit(const AliTOFSDigit * const sdigit) | |
399 | { | |
400 | // | |
401 | // Add a TOF sdigit in container | |
402 | // new with placement must be used | |
403 | TClonesArray &aSDigitsArray = *fSDigitsArray; | |
404 | Int_t last=fSDigitsArray->GetEntriesFast(); | |
405 | // make a copy of the current sdigit and | |
406 | // put it into tmp array | |
407 | new (aSDigitsArray[last]) AliTOFSDigit(*sdigit); | |
408 | } | |
409 | ||
410 | //_____________________________________________________________________________ | |
411 | void AliTOFDigitizer::InitDecalibration() const { | |
412 | // | |
413 | // Initialize TOF digits decalibration | |
414 | // | |
415 | ||
416 | fCalib->Init(); | |
417 | /* | |
418 | fCalib->CreateCalArrays(); | |
419 | fCalib->ReadSimHistoFromCDB("TOF/Calib", -1); // use AliCDBManager's number | |
420 | fCalib->ReadParOfflineFromCDB("TOF/Calib", -1); // use AliCDBManager's number | |
421 | */ | |
422 | } | |
423 | //--------------------------------------------------------------------- | |
424 | void AliTOFDigitizer::DecalibrateTOFSignal() { | |
425 | // | |
426 | // Decalibrate TOF signals according to OCDB parameters | |
427 | // | |
428 | ||
429 | Double_t time=0., tot=0., corr=0.; | |
430 | Int_t deltaBC=0, l0l1=0, tdcBin=0; | |
431 | Int_t index = -1; | |
432 | Int_t detId[5] ={-1,-1,-1,-1,-1}; | |
433 | UInt_t timestamp=0; | |
434 | ||
435 | Int_t ndigits = fDigits->GetEntriesFast(); | |
436 | // Loop on TOF Digits | |
437 | for (Int_t i=0;i<ndigits;i++){ | |
438 | AliTOFdigit * dig = (AliTOFdigit*)fDigits->At(i); | |
439 | detId[0] = dig->GetSector(); | |
440 | detId[1] = dig->GetPlate(); | |
441 | detId[2] = dig->GetStrip(); | |
442 | detId[3] = dig->GetPadz(); | |
443 | detId[4] = dig->GetPadx(); | |
444 | dig->SetTdcND(dig->GetTdc()); // save the non decalibrated time | |
445 | ||
446 | index = AliTOFGeometry::GetIndex(detId); // The channel index | |
447 | ||
448 | // Read Calibration parameters from the CDB | |
449 | // get digit info | |
450 | time = dig->GetTdc() * AliTOFGeometry::TdcBinWidth(); /* ps */ | |
451 | tot = dig->GetToT() * AliTOFGeometry::ToTBinWidth() * 1.e-3; /* ns */ | |
452 | deltaBC = 0;//dig->GetDeltaBC(); | |
453 | l0l1 = 0;//dig->GetL0L1Latency(); | |
454 | ||
455 | // get correction | |
456 | corr = fCalib->GetTimeCorrection(index, tot, deltaBC, l0l1, timestamp); /* ps */ | |
457 | AliDebug(2, Form("calibrate index %d: time=%f (ps) tot=%f (ns) deltaBC=%d l0l1=%d timestamp=%d corr=%f (ps)", | |
458 | index, time, tot, deltaBC, l0l1, timestamp, corr)); | |
459 | ||
460 | // apply time correction | |
461 | time += corr; | |
462 | ||
463 | // convert in TDC bins and set digit | |
464 | //tdcBin = (Int_t)(time / AliTOFGeometry::TdcBinWidth()); //the corrected time (tdc counts) | |
465 | tdcBin = TMath::Nint(time / AliTOFGeometry::TdcBinWidth()); //the corrected time (tdc counts) | |
466 | dig->SetTdc(tdcBin); | |
467 | ||
468 | } | |
469 | ||
470 | AliDebug(1,"Simulating miscalibrated digits"); | |
471 | ||
472 | return; | |
473 | } | |
474 | ||
475 | //--------------------------------------------------------------------- | |
476 | /* | |
477 | void AliTOFDigitizer::DecalibrateTOFSignal(){ // Old implementation | |
478 | ||
479 | // Read Calibration parameters from the CDB | |
480 | ||
481 | TObjArray * calOffline= fCalib->GetTOFCalArrayOffline(); | |
482 | ||
483 | AliDebug(2,Form("Size of array for Offline Calibration = %i",calOffline->GetEntries())); | |
484 | ||
485 | // Initialize Quantities to Simulate ToT Spectra | |
486 | ||
487 | TH1F * hToT= fCalib->GetTOFSimToT(); | |
488 | Int_t nbins = hToT->GetNbinsX(); | |
489 | Float_t delta = hToT->GetBinWidth(1); | |
490 | Float_t maxch = hToT->GetBinLowEdge(nbins)+delta; | |
491 | Float_t minch = hToT->GetBinLowEdge(1); | |
492 | Float_t max=0,min=0; //maximum and minimum value of the distribution | |
493 | Int_t maxbin=0,minbin=0; //maximum and minimum bin of the distribution | |
494 | ||
495 | for (Int_t ii=nbins; ii>0; ii--){ | |
496 | if (hToT->GetBinContent(ii)!= 0) { | |
497 | max = maxch - (nbins-ii-1)*delta; | |
498 | maxbin = ii; | |
499 | break;} | |
500 | } | |
501 | for (Int_t j=1; j<nbins; j++){ | |
502 | if (hToT->GetBinContent(j)!= 0) { | |
503 | min = minch + (j-1)*delta; | |
504 | minbin = j; | |
505 | break;} | |
506 | } | |
507 | ||
508 | Float_t maxToT=max; | |
509 | Float_t minToT=min; | |
510 | ||
511 | Float_t maxToTDistr=hToT->GetMaximum(); | |
512 | ||
513 | AliDebug (1, Form(" The minimum ToT = %f", minToT)); | |
514 | AliDebug (1, Form(" The maximum ToT = %f", maxToT)); | |
515 | AliDebug (1, Form(" The maximum peak in ToT = %f", maxToTDistr)); | |
516 | ||
517 | // Loop on TOF Digits | |
518 | ||
519 | Bool_t isToTSimulated=kFALSE; | |
520 | Bool_t misCalibPars=kFALSE; | |
521 | if(hToT->GetEntries()>0)isToTSimulated=kTRUE; | |
522 | Int_t ndigits = fDigits->GetEntriesFast(); | |
523 | for (Int_t i=0;i<ndigits;i++){ | |
524 | AliTOFdigit * dig = (AliTOFdigit*)fDigits->At(i); | |
525 | Int_t detId[5]; | |
526 | detId[0] = dig->GetSector(); | |
527 | detId[1] = dig->GetPlate(); | |
528 | detId[2] = dig->GetStrip(); | |
529 | detId[3] = dig->GetPadz(); | |
530 | detId[4] = dig->GetPadx(); | |
531 | dig->SetTdcND(dig->GetTdc()); // save the non decalibrated time | |
532 | if(isToTSimulated){ | |
533 | ||
534 | //A realistic ToT Spectrum was found in input, | |
535 | //decalibrated TOF Digits likely to be simulated.... | |
536 | ||
537 | Int_t index = AliTOFGeometry::GetIndex(detId); // The channel index | |
538 | AliTOFChannelOffline *calChannelOffline = (AliTOFChannelOffline *)calOffline->At(index); //retrieve the info for time slewing | |
539 | Double_t par[6]; // time slewing parameters | |
540 | ||
541 | //check whether we actually ask for miscalibration | |
542 | ||
543 | for (Int_t j = 0; j<6; j++){ | |
544 | par[j]=(Double_t)calChannelOffline->GetSlewPar(j); | |
545 | if(par[j]!=0)misCalibPars=kTRUE; | |
546 | } | |
547 | AliDebug(2,Form(" Calib Pars = %f (0-th parameter for time slewing + time delay), %f, %f, %f, %f, %f ",par[0],par[1],par[2],par[3],par[4],par[5])); | |
548 | ||
549 | // Now generate Realistic ToT distribution from TestBeam Data. | |
550 | // Tot is in ns, assuming a Matching Window of 10 ns. | |
551 | ||
552 | Float_t simToT = 0; | |
553 | Float_t trix = 0; | |
554 | Float_t triy = 0; | |
555 | Double_t timeCorr; | |
556 | Double_t tToT; | |
557 | while (simToT <= triy){ | |
558 | trix = gRandom->Rndm(i); | |
559 | triy = gRandom->Rndm(i); | |
560 | trix = (maxToT-minToT)*trix + minToT; | |
561 | triy = maxToTDistr*triy; | |
562 | Int_t binx=hToT->FindBin(trix); | |
563 | simToT=hToT->GetBinContent(binx); | |
564 | } | |
565 | // the generated ToT (ns) | |
566 | tToT= (Double_t) trix; // to apply slewing we start from ns.. | |
567 | // transform TOF signal in ns | |
568 | AliDebug(2,Form(" The Initial Time (counts): %i: ",dig->GetTdc())); | |
569 | AliDebug(2,Form(" Time before miscalibration (ps) %e: ",dig->GetTdc()*(Double_t)AliTOFGeometry::TdcBinWidth())); | |
570 | // add slewing effect | |
571 | timeCorr=par[0] + tToT*(par[1] +tToT*(par[2] +tToT*(par[3] +tToT*(par[4] +tToT*par[5])))); | |
572 | AliDebug(2,Form(" The Time slewing + delay (ns): %f: ",timeCorr)); | |
573 | // add global time shift | |
574 | //convert to ps | |
575 | timeCorr*=1E3; | |
576 | Double_t timeMis = (Double_t)(dig->GetTdc())*(Double_t)AliTOFGeometry::TdcBinWidth(); | |
577 | timeMis = timeMis+timeCorr; | |
578 | AliDebug(2,Form(" The Miscalibrated time (ps): %e: ",timeMis)); | |
579 | ||
580 | // now update the digit info | |
581 | ||
582 | Int_t tdcCorr= (Int_t)(timeMis/AliTOFGeometry::TdcBinWidth()); | |
583 | AliDebug(2,Form(" Final Time (counts): %i: ",tdcCorr)); | |
584 | // Setting Decalibrated Time signal (TDC counts) | |
585 | dig->SetTdc(tdcCorr); | |
586 | // Setting realistic ToT signal (TDC counts) | |
587 | tToT*=1E3; //back to ps | |
588 | Int_t tot=(Int_t)(tToT/AliTOFGeometry::ToTBinWidth());//(factor 1E3 as input ToT is in ns) | |
589 | dig->SetToT(tot); | |
590 | AliDebug(2,Form(" Final Time and ToT (counts): %d: , %d:",dig->GetTdc(),dig->GetToT())); | |
591 | if(tdcCorr<0){ | |
592 | AliWarning (Form(" The bad Slewed Time(TDC counts)= %d ", tdcCorr)); | |
593 | AliWarning(Form(" The bad ToT (TDC counts)= %d ", tot)); | |
594 | } | |
595 | } | |
596 | else{ | |
597 | // For Data with no Miscalibration, set ToT signal == Adc | |
598 | dig->SetToT((Int_t)(dig->GetAdc()/AliTOFGeometry::ToTBinWidth())); //remove the factor 10^3 just to have a reasonable ToT range for raw data simulation even in the case of non-realistic ToT distribution (n.b. fAdc is practically an arbitrary quantity, and ToT has no impact on the TOF reco for non-miscalibrated digits) | |
599 | } | |
600 | } | |
601 | ||
602 | if(!isToTSimulated) | |
603 | AliDebug(1,"Standard Production, no miscalibrated digits"); | |
604 | else | |
605 | if(!misCalibPars) | |
606 | AliDebug(1,"Standard Production, no miscalibrated digits"); | |
607 | else | |
608 | AliDebug(1,"Simulating miscalibrated digits"); | |
609 | ||
610 | return; | |
611 | } | |
612 | */ |