1 /**************************************************************************
2 * Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 //_________________________________________________________________________//
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 //
22 // Digits are written to TreeD in branch "TOF". //
24 // -- Author : F. Pierella (Bologna University) pierella@bo.infn.it //
26 //_________________________________________________________________________//
28 #include "Riostream.h"
34 #include "AliLoader.h"
36 #include "AliRunDigitizer.h"
37 #include "AliRunLoader.h"
40 #include "AliTOFCal.h"
41 #include "AliTOFcalib.h"
42 #include "AliTOFChannel.h"
43 #include "AliTOFDigitizer.h"
44 #include "AliTOFdigit.h"
45 #include "AliTOFHitMap.h"
46 #include "AliTOFGeometryV5.h"
47 #include "AliTOFSDigit.h"
50 extern TDirectory *gDirectory;
52 extern TRandom *gRandom;
54 extern AliRun *gAlice;
57 ClassImp(AliTOFDigitizer)
59 //___________________________________________
60 AliTOFDigitizer::AliTOFDigitizer() :AliDigitizer()
62 // Default ctor - don't use it
69 //___________________________________________
70 AliTOFDigitizer::AliTOFDigitizer(AliRunDigitizer* manager)
71 :AliDigitizer(manager)
73 //ctor with RunDigitizer
80 //------------------------------------------------------------------------
81 AliTOFDigitizer::AliTOFDigitizer(const AliTOFDigitizer &source)
85 this->fDigits=source.fDigits;
86 this->fSDigitsArray=source.fSDigitsArray;
87 this->fhitMap=source.fhitMap;
88 this->fGeom=source.fGeom;
92 //------------------------------------------------------------------------
93 AliTOFDigitizer& AliTOFDigitizer::operator=(const AliTOFDigitizer &source)
96 this->fDigits=source.fDigits;
97 this->fSDigitsArray=source.fSDigitsArray;
98 this->fhitMap=source.fhitMap;
99 this->fGeom=source.fGeom;
104 //------------------------------------------------------------------------
105 AliTOFDigitizer::~AliTOFDigitizer()
110 //---------------------------------------------------------------------
112 void AliTOFDigitizer::Exec(Option_t* /*option*/)
115 // Perform digitization and merging.
116 // The algorithm is the following:
117 // - a hitmap is created to check if a pad is already activated;
118 // - an sdigits container is created to collect all sdigits from
120 // - sdigits are summed using the hitmap;
121 // - the sdigits container is used to create the array of AliTOFdigit.
127 // get the ptr to TOF detector
128 AliTOF * tof = (AliTOF *) gAlice->GetDetector("TOF") ;
132 sprintf (branchname, "%s", tof->GetName ());
134 fDigits=new TClonesArray("AliTOFdigit",4000);
136 AliRunLoader* outrl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
139 AliError("Can not find Run Loader in output folder.");
144 TFile *in=(TFile*)gFile;
145 TDirectory *savedir=gDirectory;
148 AliWarning("Geometry file is not open default TOF geometry will be used");
149 fGeom = new AliTOFGeometryV5();
153 fGeom = (AliTOFGeometry*)in->Get("TOFgeometry");
158 AliLoader* outgime = outrl->GetLoader("TOFLoader");
161 AliError("Can not get TOF Loader from Output Run Loader.");
165 TTree* treeD = outgime->TreeD();
168 outgime->MakeTree("D");
169 treeD = outgime->TreeD();
171 //Make branch for digits (to be created in Init())
172 tof->MakeBranchInTree(treeD,branchname,&fDigits,4000);
174 // container for all summed sdigits (to be created in Init())
175 fSDigitsArray=new TClonesArray("AliTOFSDigit",1000);
177 // create hit map (to be created in Init())
178 fhitMap = new AliTOFHitMap(fSDigitsArray, fGeom);
180 // Loop over files to digitize
182 for (Int_t inputFile=0; inputFile<fManager->GetNinputs();
184 ReadSDigit(inputFile);
190 // free used memory for Hit Map in current event
192 fSDigitsArray->Delete();
193 delete fSDigitsArray;
197 outgime->WriteDigits("OVERWRITE");
198 outgime->UnloadDigits();
204 //---------------------------------------------------------------------
206 void AliTOFDigitizer::CreateDigits()
208 // loop on sdigits container to fill the AliTOFdigit TClonesArray
209 // start digitizing all the collected sdigits
211 Int_t ndump=0; // dump the first ndump created digits for each event
213 // get the total number of collected sdigits
214 Int_t ndig = fSDigitsArray->GetEntriesFast();
216 for (Int_t k = 0; k < ndig; k++) {
218 Int_t vol[5]; // location for a digit
219 for (Int_t i=0; i<5; i++) vol[i] = -1;
221 // Get the information for this digit
222 AliTOFSDigit *tofsdigit = (AliTOFSDigit *) fSDigitsArray->UncheckedAt(k);
224 Int_t nslot=tofsdigit->GetNDigits(); // get the number of slots
225 // for current sdigit
227 // TOF sdigit volumes (always the same for all slots)
228 Int_t sector = tofsdigit->GetSector(); // range [0-17]
229 Int_t plate = tofsdigit->GetPlate(); // range [0- 4]
230 Int_t strip = tofsdigit->GetStrip(); // range [0-14/18/19]
231 Int_t padz = tofsdigit->GetPadz(); // range [0- 1]
232 Int_t padx = tofsdigit->GetPadx(); // range [0-47]
240 //--------------------- QA section ----------------------
241 // in the while, I perform QA
242 Bool_t isSDigitBad = (sector<0 || sector>17 || plate<0 || plate >4 || padz<0 || padz>1 || padx<0 || padx>47);
245 //AliFatal("strange sdigit found");
246 AliFatal(Form("strange sdigit found %3i %2i %2i %3i %3i", sector, plate, padz, padx, strip));
248 //-------------------------------------------------------
250 //------------------- Dump section ----------------------
252 cout << k << "-th | " << "Sector " << sector << " | Plate " << plate << " | Strip " << strip << " | PadZ " << padz << " | PadX " << padx << endl;
253 cout << k << "-th sdigit" << endl;
254 cout << "----------------------------------------------------"<< endl;
256 // ------------------------------------------------------
258 // start loop on number of slots for current sdigit
259 for (Int_t islot = 0; islot < nslot; islot++) {
260 Float_t digit[4] = {-1.,-1.,-1.,-1.}; // TOF digit variables
261 Int_t tracknum[AliTOFSDigit::kMAXDIGITS]; // contributing tracks for the current slot
263 Float_t tdc=tofsdigit->GetTdc(islot); digit[0]=tdc;
264 Float_t adc=tofsdigit->GetAdc(islot); digit[1]=adc;
266 tracknum[0]=tofsdigit->GetTrack(islot,0);
267 tracknum[1]=tofsdigit->GetTrack(islot,1);
268 tracknum[2]=tofsdigit->GetTrack(islot,2);
270 // new with placement must be used
271 // adding a TOF digit for each slot
272 TClonesArray &aDigits = *fDigits;
273 Int_t last=fDigits->GetEntriesFast();
274 new (aDigits[last]) AliTOFdigit(tracknum, vol, digit);
278 } // end loop on sdigits - end digitizing all collected sdigits
280 //Insert Decalibration
282 AliTOFcalib * calib = new AliTOFcalib(fGeom);
283 InitDecalibration(calib);
284 DecalibrateTOFSignal(calib);
288 //---------------------------------------------------------------------
290 void AliTOFDigitizer::ReadSDigit(Int_t inputFile )
292 // Read sdigits for current event and inputFile;
293 // store them into the sdigits container
294 // and update the hit map
295 // SDigits from different files are assumed to
296 // be created with the same simulation parameters.
298 // get the treeS from manager
299 AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
302 AliError(Form("Can not find Run Loader in input %d folder.",inputFile));
306 AliLoader* gime = rl->GetLoader("TOFLoader");
309 AliError(Form("Can not get TOF Loader from Input %d Run Loader.",inputFile));
313 TTree* currentTreeS=gime->TreeS();
314 if (currentTreeS == 0x0)
316 Int_t retval = gime->LoadSDigits();
319 AliError(Form("Error occured while loading S. Digits for Input %d",inputFile));
322 currentTreeS=gime->TreeS();
323 if (currentTreeS == 0x0)
325 AliError(Form("Can not get S. Digits Tree for Input %d",inputFile));
329 // get the branch TOF inside the treeS
330 TClonesArray * sdigitsDummyContainer= new TClonesArray("AliTOFSDigit", 1000);
332 // check if the branch exist
333 TBranch* tofBranch=currentTreeS->GetBranch("TOF");
336 AliFatal(Form("TOF branch not found for input %d",inputFile));
339 tofBranch->SetAddress(&sdigitsDummyContainer);
341 Int_t nEntries = (Int_t)tofBranch->GetEntries();
343 // Loop through all entries in the tree
346 for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
349 nbytes += tofBranch->GetEvent(iEntry);
351 // Get the number of sdigits
352 Int_t ndig = sdigitsDummyContainer->GetEntriesFast();
354 for (Int_t k=0; k<ndig; k++) {
355 AliTOFSDigit *tofSdigit= (AliTOFSDigit*) sdigitsDummyContainer->UncheckedAt(k);
357 Int_t vol[5]; // location for a sdigit
358 for (Int_t i=0; i<5; i++) vol[i] = -1;
360 // check the sdigit volume
361 vol[0] = tofSdigit->GetSector();
362 vol[1] = tofSdigit->GetPlate();
363 vol[2] = tofSdigit->GetStrip();
364 vol[3] = tofSdigit->GetPadx();
365 vol[4] = tofSdigit->GetPadz();
367 if (fhitMap->TestHit(vol) != kEmpty) {
368 AliTOFSDigit *sdig = static_cast<AliTOFSDigit*>(fhitMap->GetHit(vol));
369 sdig->Update(tofSdigit);
373 CollectSDigit(tofSdigit); // collect the current sdigit
374 fhitMap->SetHit(vol); // update the hitmap for location vol
376 } // if (hitMap->TestHit(vol) != kEmpty)
378 } // for (Int_t k=0; k<ndig; k++)
379 sdigitsDummyContainer->Delete();
381 } // end loop on entries
383 delete sdigitsDummyContainer;
388 //_____________________________________________________________________________
389 void AliTOFDigitizer::CollectSDigit(AliTOFSDigit * sdigit)
392 // Add a TOF sdigit in container
393 // new with placement must be used
394 TClonesArray &aSDigitsArray = *fSDigitsArray;
395 Int_t last=fSDigitsArray->GetEntriesFast();
396 // make a copy of the current sdigit and
397 // put it into tmp array
398 new (aSDigitsArray[last]) AliTOFSDigit(*sdigit);
401 //_____________________________________________________________________________
402 void AliTOFDigitizer::InitDecalibration( AliTOFcalib *calib) const {
403 // calib->ReadSimParFromCDB("TOF/Calib", 0); // original
404 calib->ReadSimParFromCDB("TOF/Calib", -1); // use AliCDBManager's number
406 //---------------------------------------------------------------------
407 void AliTOFDigitizer::DecalibrateTOFSignal( AliTOFcalib *calib){
409 // Read Calibration parameters from the CDB
411 AliTOFCal * cal= calib->GetTOFCalSimArray();
413 AliInfo(Form("Size of AliTOFCal = %i",cal->NPads()));
414 for (Int_t ipad = 0 ; ipad<cal->NPads(); ipad++){
415 AliTOFChannel *calChannel = cal->GetChannel(ipad);
417 for (Int_t j = 0; j<6; j++){
418 par[j]=calChannel->GetSlewPar(j);
422 // Initialize Quantities to Simulate ToT Spectra
425 TH1F * hToT= calib->GetTOFSimToT();
426 Int_t nbins = hToT->GetNbinsX();
427 Float_t delta = hToT->GetBinWidth(1);
428 Float_t maxch = hToT->GetBinLowEdge(nbins)+delta;
429 Float_t minch = hToT->GetBinLowEdge(1);
430 Float_t max=0,min=0; //maximum and minimum value of the distribution
431 Int_t maxbin=0,minbin=0; //maximum and minimum bin of the distribution
432 for (Int_t ii=nbins; ii>0; ii--){
433 if (hToT->GetBinContent(ii)!= 0) {
434 max = maxch - (nbins-ii-1)*delta;
438 for (Int_t j=1; j<nbins; j++){
439 if (hToT->GetBinContent(j)!= 0) {
440 min = minch + (j-1)*delta;
446 Float_t maxToTDistr=hToT->GetMaximum();
449 // Loop on TOF Digits
451 Bool_t dbEntry=kFALSE;
452 Int_t ndigits = fDigits->GetEntriesFast();
453 for (Int_t i=0;i<ndigits;i++){
454 AliTOFdigit * dig = (AliTOFdigit*)fDigits->At(i);
456 detId[0] = dig->GetSector();
457 detId[1] = dig->GetPlate();
458 detId[2] = dig->GetStrip();
459 detId[3] = dig->GetPadz();
460 detId[4] = dig->GetPadx();
461 // For Data with no Miscalibration, set ToT signal == Adc
462 dig->SetToT(dig->GetAdc());
463 if(hToT->GetEntries()>0){
467 while (simToT <= triy){
468 trix = gRandom->Rndm(i);
469 triy = gRandom->Rndm(i);
470 trix = (maxToT-minToT)*trix + minToT;
471 triy = maxToTDistr*triy;
472 Int_t binx=hToT->FindBin(trix);
473 simToT=hToT->GetBinContent(binx);
475 // Setting realistic ToT signal (only for Miscalibrated Data)
478 Int_t index = calib->GetIndex(detId);
479 AliTOFChannel *calChannel = cal->GetChannel(index);
481 for (Int_t j = 0; j<6; j++){
482 par[j]=calChannel->GetSlewPar(j);
483 if(par[j]!=0)dbEntry=kTRUE;
486 Float_t tToT= dig->GetToT();
487 dig->SetTdcND(dig->GetTdc());
488 Float_t tdc = ((dig->GetTdc())*AliTOFGeometry::TdcBinWidth()+32)*1.E-3; //tof signal in ns
489 Float_t timeoffset=par[0] + tToT*(par[1] +tToT*(par[2] +tToT*(par[3] +tToT*(par[4] +tToT*par[5]))));
490 Float_t timeSlewed = tdc + timeoffset;
491 // Setting Decalibrated Time signal
492 dig->SetTdc((timeSlewed*1E3-32)/AliTOFGeometry::TdcBinWidth());
495 if(hToT->GetEntries()<=0 || !dbEntry){
496 AliInfo("Standard Production, no miscalibrated digits");
498 AliInfo("Miscalibrated digits");