LCOV - code coverage report
Current view: top level - TOF/TOFsim - AliTOFDigitizer.cxx (source / functions) Hit Total Coverage
Test: coverage.info Lines: 148 193 76.7 %
Date: 2016-06-14 17:26:59 Functions: 12 17 70.6 %

          Line data    Source code
       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 "AliDigitizationInput.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 TRandom *gRandom;
      55             : 
      56             : extern AliRun *gAlice;
      57             : 
      58             : 
      59          26 : ClassImp(AliTOFDigitizer)
      60             : 
      61             : //___________________________________________
      62             :   AliTOFDigitizer::AliTOFDigitizer()  :
      63           0 :     AliDigitizer(),
      64           0 :     fDigits(new TClonesArray("AliTOFdigit",4000)),
      65           0 :     fSDigitsArray(new TClonesArray("AliTOFSDigit",1000)),
      66           0 :   fhitMap(0x0),
      67           0 :   fCalib(new AliTOFcalib())
      68           0 : {
      69             :   // Default ctor - don't use it
      70           0 :   InitDecalibration();
      71           0 : }
      72             : 
      73             : //___________________________________________
      74             : AliTOFDigitizer::AliTOFDigitizer(AliDigitizationInput* digInput): 
      75           1 :   AliDigitizer(digInput), 
      76           3 :   fDigits(new TClonesArray("AliTOFdigit",4000)),
      77           3 :   fSDigitsArray(new TClonesArray("AliTOFSDigit",1000)),
      78           1 :   fhitMap(0x0),
      79           3 :   fCalib(new AliTOFcalib())
      80           5 : {
      81             :   //ctor with RunDigitizer
      82           1 :   InitDecalibration();
      83           2 : }
      84             : 
      85             : //------------------------------------------------------------------------
      86             : AliTOFDigitizer::AliTOFDigitizer(const AliTOFDigitizer &source):
      87           0 :   AliDigitizer(source),
      88           0 :   fDigits(source.fDigits),
      89           0 :   fSDigitsArray(source.fSDigitsArray),
      90           0 :   fhitMap(source.fhitMap),
      91           0 :   fCalib(source.fCalib)
      92           0 : {
      93             :   // copy constructor
      94           0 : }
      95             : 
      96             : //------------------------------------------------------------------------
      97             :   AliTOFDigitizer& AliTOFDigitizer::operator=(const AliTOFDigitizer &source)
      98             : {
      99             :   // ass. op.
     100             :   
     101           0 :   if (this == &source)
     102           0 :     return *this;
     103             : 
     104           0 :   AliDigitizer::operator=(source);
     105           0 :   fDigits=source.fDigits;
     106           0 :   fSDigitsArray=source.fSDigitsArray;
     107           0 :   fhitMap=source.fhitMap;
     108           0 :   fCalib=source.fCalib;
     109           0 :   return *this;
     110             : 
     111           0 : }
     112             : 
     113             : //------------------------------------------------------------------------
     114             : AliTOFDigitizer::~AliTOFDigitizer()
     115           6 : {
     116             :   // Destructor
     117           2 :   delete fCalib;
     118           1 :   if (fDigits){
     119           1 :     fDigits->Delete();
     120           2 :     delete fDigits;
     121           1 :     fDigits=0x0;
     122           1 :   }
     123           1 :   if (fSDigitsArray){
     124           1 :     fSDigitsArray->Delete();
     125           2 :     delete fSDigitsArray;
     126           1 :     fSDigitsArray=0x0;
     127           1 :   }
     128           3 : }
     129             : 
     130             : //---------------------------------------------------------------------
     131             : 
     132             : void AliTOFDigitizer::Digitize(Option_t* /*option*/)
     133             : {
     134             :   //
     135             :   // Perform digitization and merging.
     136             :   // The algorithm is the following:
     137             :   // - a hitmap is created to check if a pad is already activated;
     138             :   // - an sdigits container is created to collect all sdigits from
     139             :   //   different files;
     140             :   // - sdigits are summed using the hitmap;
     141             :   // - the sdigits container is used to create the array of AliTOFdigit.
     142             :   //
     143             : 
     144          16 :   AliDebug(1, "");
     145             : 
     146             : 
     147             :   // get the ptr to TOF detector
     148           4 :   AliTOF * tof = (AliTOF *) gAlice->GetDetector("TOF") ;
     149             : 
     150             :   //Make branches
     151             : 
     152             :   const Int_t kSize = 20;
     153           4 :   char branchname[kSize];
     154           4 :   snprintf(branchname,kSize,"%s", tof->GetName ());
     155             :  
     156           4 :   AliRunLoader* outrl = AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName());
     157           4 :   if (outrl == 0x0)
     158             :    {
     159           0 :      AliError("Can not find Run Loader in output folder.");
     160           0 :      return;
     161             :    }
     162             :    
     163           4 :   AliLoader* outgime = outrl->GetLoader("TOFLoader");
     164           4 :   if (outgime == 0x0)
     165             :    {
     166           0 :      AliError("Can not get TOF Loader from Output Run Loader.");
     167           0 :      return;
     168             :    }
     169             :   
     170           4 :   TTree* treeD = outgime->TreeD();
     171           4 :   if (treeD == 0x0)
     172             :    {
     173           4 :      outgime->MakeTree("D");
     174           4 :      treeD = outgime->TreeD();
     175           4 :    }
     176             :   //Make branch for digits (to be created in Init())
     177           4 :   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           8 :   fhitMap = new AliTOFHitMap(fSDigitsArray);
     184             :   
     185             :   // Loop over files to digitize
     186             : 
     187          16 :   for (Int_t inputFile=0; inputFile<fDigInput->GetNinputs();
     188           4 :        inputFile++) {
     189           4 :     ReadSDigit(inputFile);
     190             :    }
     191             : 
     192             :   // create digits
     193           4 :   CreateDigits();
     194             : 
     195             :   // free used memory for Hit Map in current event
     196           8 :   delete fhitMap;
     197           4 :   fSDigitsArray->Clear();
     198             : 
     199           4 :   treeD->Fill();
     200             : 
     201          12 :   AliDebug(2,"----------------------------------------");
     202          12 :   AliDebug(1,Form("%d digits have been created", fDigits->GetEntriesFast()));
     203          12 :   AliDebug(2,"----------------------------------------");
     204             : 
     205           4 :   outgime->WriteDigits("OVERWRITE");
     206           4 :   outgime->UnloadDigits();
     207           4 :   fDigits->Clear();
     208             : 
     209           8 : }
     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           8 :   Int_t ndig = fSDigitsArray->GetEntriesFast();
     222             : 
     223           4 :   Int_t  vol[5]={-1,-1,-1,-1,-1};  // location for a digit
     224           4 :   Int_t  digit[4] = {0,0,0,0};     // TOF digit variables
     225           4 :   Int_t tracknum[AliTOFSDigit::kMAXDIGITS]; // contributing tracks for the current slot
     226          32 :   for (Int_t aa=0; aa<AliTOFSDigit::kMAXDIGITS; aa++) tracknum[aa] = -1;
     227             : 
     228         208 :   for (Int_t k = 0; k < ndig; k++) {
     229             :     
     230        1200 :     for (Int_t i=0; i<5; i++) vol[i] = -1;
     231             :     
     232             :     // Get the information for this digit
     233         100 :     AliTOFSDigit *tofsdigit = (AliTOFSDigit *) fSDigitsArray->UncheckedAt(k);
     234             :     
     235         100 :     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         100 :     Int_t sector    = tofsdigit->GetSector(); // range [0-17]
     240         100 :     Int_t plate     = tofsdigit->GetPlate();  // range [0- 4]
     241         100 :     Int_t strip     = tofsdigit->GetStrip();  // range [0-14/18/19]
     242         100 :     Int_t padz      = tofsdigit->GetPadz();   // range [0- 1]
     243         100 :     Int_t padx      = tofsdigit->GetPadx();   // range [0-47]
     244             :     
     245         100 :     vol[0] = sector;
     246         100 :     vol[1] = plate;
     247         100 :     vol[2] = strip;
     248         100 :     vol[3] = padx;
     249         100 :     vol[4] = padz;
     250             :     
     251             :     //--------------------- QA section ----------------------
     252             :     // in the while, I perform QA
     253         300 :     Bool_t isSDigitBad = (sector<0 || sector>17 || plate<0 || plate >4 || padz<0 || padz>1 || padx<0 || padx>47);
     254             :     
     255         100 :     if (isSDigitBad)
     256           0 :       AliFatal(Form("strange sdigit found   %2d  %1d  %2d  %1d %2d", sector, plate, strip, padz, padx));
     257             :     //-------------------------------------------------------
     258             :     
     259             :     //------------------- Dump section ----------------------
     260         100 :     if (k<ndump) {
     261           0 :       AliInfo(Form("%2d-th digit: Sector %2d | Plate %1d | Strip %2d | PadZ %1d | PadX %2d ", k, sector, plate, strip, padz, padx));
     262           0 :       AliInfo("----------------------------------------------------");
     263           0 :     }
     264             :     // ------------------------------------------------------
     265             :     
     266             :     // start loop on number of slots for current sdigit
     267         400 :     for (Int_t islot = 0; islot < nslot; islot++) {
     268        1000 :       for (Int_t aa=0; aa<4; aa++) digit[aa] = 0; // TOF digit variables
     269         800 :       for (Int_t aa=0; aa<AliTOFSDigit::kMAXDIGITS; aa++) tracknum[aa] = -1;
     270             :       
     271         100 :       Int_t tdc=tofsdigit->GetTdc(islot); digit[0]=tdc;
     272         100 :       Int_t adc=tofsdigit->GetAdc(islot); digit[1]=adc;
     273             : 
     274             :       //if (tdc>=8192) continue;//AdC
     275             : 
     276         100 :       tracknum[0]=tofsdigit->GetTrack(islot,0);
     277         100 :       tracknum[1]=tofsdigit->GetTrack(islot,1);
     278         100 :       tracknum[2]=tofsdigit->GetTrack(islot,2);
     279             :       
     280             :       // new with placement must be used
     281             :       // adding a TOF digit for each slot
     282         100 :       TClonesArray &aDigits = *fDigits;
     283         100 :       Int_t last=fDigits->GetEntriesFast();
     284         100 :       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          12 :   AliDebug(2,"in digitizer, create digits");
     292           4 :   DecalibrateTOFSignal();
     293           4 : }
     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          11 :   static TClonesArray sdigitsClonesArray("AliTOFSDigit",  1000); 
     307           4 :   sdigitsClonesArray.Clear();
     308             : 
     309             :   // get the treeS from digInput
     310           4 :   AliRunLoader* rl = AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(inputFile));
     311           4 :   if (rl == 0x0)
     312             :    {
     313           0 :      AliError(Form("Can not find Run Loader in input %d folder.",inputFile));
     314           0 :      return;
     315             :    }
     316             : 
     317           4 :   AliLoader* gime = rl->GetLoader("TOFLoader");
     318           4 :   if (gime == 0x0)
     319             :    {
     320           0 :      AliError(Form("Can not get TOF Loader from Input %d Run Loader.",inputFile));
     321           0 :      return;
     322             :    }
     323             : 
     324           4 :   TTree* currentTreeS=gime->TreeS();
     325           4 :   if (currentTreeS == 0x0)
     326             :    {
     327           1 :      Int_t retval = gime->LoadSDigits();
     328           1 :      if (retval) 
     329             :       {
     330           0 :          AliError(Form("Error occured while loading S. Digits for Input %d",inputFile));
     331           0 :          return;
     332             :       }
     333           1 :      currentTreeS=gime->TreeS();
     334           1 :      if (currentTreeS == 0x0)
     335             :       {
     336           0 :          AliError(Form("Can not get S. Digits Tree for Input %d",inputFile));
     337           0 :          return;
     338             :       }
     339           1 :    } 
     340             :   // get the branch TOF inside the treeS
     341           4 :   TClonesArray * sdigitsDummyContainer=&sdigitsClonesArray;
     342             :   // check if the branch exist
     343           4 :   TBranch* tofBranch=currentTreeS->GetBranch("TOF");
     344             : 
     345           4 :   if(!tofBranch){
     346           0 :     AliFatal(Form("TOF branch not found for input %d",inputFile));
     347           0 :     return;
     348             :   }
     349             :   
     350           4 :   tofBranch->SetAddress(&sdigitsDummyContainer);           
     351             :   
     352           4 :   Int_t nEntries = (Int_t)tofBranch->GetEntries();                                
     353             : 
     354             :   // Loop through all entries in the tree
     355             :   Int_t nbytes = 0;
     356             :   
     357           4 :   Int_t  vol[5]; // location for a sdigit
     358          48 :   for (Int_t i=0; i<5; i++) vol[i] = -1;
     359             : 
     360          16 :   for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
     361             :     
     362             :     // Import the tree
     363           4 :     nbytes += tofBranch->GetEvent(iEntry);
     364             :     
     365             :     // Get the number of sdigits
     366           4 :     Int_t ndig = sdigitsDummyContainer->GetEntriesFast();
     367             :     
     368         208 :     for (Int_t k=0; k<ndig; k++) {
     369         100 :       AliTOFSDigit *tofSdigit= (AliTOFSDigit*) sdigitsDummyContainer->UncheckedAt(k);
     370             :       
     371        1200 :       for (Int_t i=0; i<5; i++) vol[i] = -1;
     372             : 
     373             :       // check the sdigit volume
     374         100 :       vol[0] = tofSdigit->GetSector();
     375         100 :       vol[1] = tofSdigit->GetPlate();
     376         100 :       vol[2] = tofSdigit->GetStrip();
     377         100 :       vol[3] = tofSdigit->GetPadx();
     378         100 :       vol[4] = tofSdigit->GetPadz();
     379             :       
     380         100 :       if (fhitMap->TestHit(vol) != kEmpty) {
     381           0 :         AliTOFSDigit *sdig = static_cast<AliTOFSDigit*>(fhitMap->GetHit(vol));
     382           0 :         sdig->Update(tofSdigit);
     383             : 
     384           0 :       } else {
     385             : 
     386         100 :         CollectSDigit(tofSdigit); // collect the current sdigit
     387         100 :         fhitMap->SetHit(vol);     // update the hitmap for location vol
     388             : 
     389             :       } // if (hitMap->TestHit(vol) != kEmpty)
     390             :       
     391             :     } // for (Int_t k=0; k<ndig; k++)
     392             : 
     393             :   } // end loop on entries
     394             : 
     395          12 : }
     396             : 
     397             : 
     398             : //_____________________________________________________________________________
     399             : void AliTOFDigitizer::CollectSDigit(const AliTOFSDigit * const sdigit)
     400             : {
     401             :   //
     402             :   // Add a TOF sdigit in container
     403             :   // new with placement must be used
     404         200 :   TClonesArray &aSDigitsArray = *fSDigitsArray;
     405         100 :   Int_t last=fSDigitsArray->GetEntriesFast();
     406             :   // make a copy of the current sdigit and
     407             :   // put it into tmp array
     408         100 :   new (aSDigitsArray[last]) AliTOFSDigit(*sdigit);
     409         100 : }
     410             : 
     411             : //_____________________________________________________________________________
     412             : void AliTOFDigitizer::InitDecalibration() const {
     413             :   //
     414             :   // Initialize TOF digits decalibration
     415             :   //
     416             : 
     417           2 :   fCalib->Init();
     418             :   /*
     419             :   fCalib->CreateCalArrays();
     420             :   fCalib->ReadSimHistoFromCDB("TOF/Calib", -1); // use AliCDBManager's number
     421             :   fCalib->ReadParOfflineFromCDB("TOF/Calib", -1); // use AliCDBManager's number
     422             :   */
     423           1 : }
     424             : //---------------------------------------------------------------------
     425             : void AliTOFDigitizer::DecalibrateTOFSignal() {
     426             :   //
     427             :   // Decalibrate TOF signals according to OCDB parameters
     428             :   //
     429             : 
     430             :   Double_t time=0., tot=0., corr=0.;
     431             :   Int_t deltaBC=0, l0l1=0, tdcBin=0;
     432             :   Int_t index = -1;
     433           8 :   Int_t detId[5] ={-1,-1,-1,-1,-1};
     434             :   UInt_t timestamp=0;
     435             : 
     436           4 :   Int_t ndigits = fDigits->GetEntriesFast();
     437             :   // Loop on TOF Digits
     438         208 :   for (Int_t i=0;i<ndigits;i++){
     439         100 :     AliTOFdigit * dig = (AliTOFdigit*)fDigits->At(i);
     440         100 :     detId[0] = dig->GetSector();
     441         100 :     detId[1] = dig->GetPlate();
     442         100 :     detId[2] = dig->GetStrip();
     443         100 :     detId[3] = dig->GetPadz();
     444         100 :     detId[4] = dig->GetPadx();
     445         100 :     dig->SetTdcND(dig->GetTdc()); // save the non decalibrated time
     446             : 
     447         100 :     index = AliTOFGeometry::GetIndex(detId); // The channel index    
     448             : 
     449             :     // Read Calibration parameters from the CDB
     450             :     // get digit info
     451         100 :     time = dig->GetTdc() * AliTOFGeometry::TdcBinWidth(); /* ps */
     452         100 :     tot = dig->GetToT() * AliTOFGeometry::ToTBinWidth() * 1.e-3; /* ns */
     453             :     deltaBC = 0;//dig->GetDeltaBC();
     454             :     l0l1 = 0;//dig->GetL0L1Latency();
     455             : 
     456             :     // get correction
     457         100 :     corr = fCalib->GetTimeCorrection(index, tot, deltaBC, l0l1, timestamp); /* ps */
     458         300 :     AliDebug(2, Form("calibrate index %d: time=%f (ps) tot=%f (ns) deltaBC=%d l0l1=%d timestamp=%d corr=%f (ps)",
     459             :                      index, time, tot, deltaBC, l0l1, timestamp, corr));
     460             : 
     461             :     // apply time correction
     462         100 :     time += corr;
     463             : 
     464             :     // convert in TDC bins and set digit
     465             :     //tdcBin = (Int_t)(time / AliTOFGeometry::TdcBinWidth()); //the corrected time (tdc counts)
     466         100 :     tdcBin = TMath::Nint(time / AliTOFGeometry::TdcBinWidth()); //the corrected time (tdc counts)
     467         100 :     dig->SetTdc(tdcBin);
     468             : 
     469             :   }
     470             : 
     471          12 :   AliDebug(1,"Simulating miscalibrated digits");
     472             : 
     473             :   return;
     474           4 : }
     475             : 
     476             : //---------------------------------------------------------------------
     477             : /*
     478             : void AliTOFDigitizer::DecalibrateTOFSignal(){ // Old implementation
     479             : 
     480             :   // Read Calibration parameters from the CDB
     481             : 
     482             :   TObjArray * calOffline= fCalib->GetTOFCalArrayOffline();
     483             : 
     484             :   AliDebug(2,Form("Size of array for Offline Calibration = %i",calOffline->GetEntries()));
     485             : 
     486             :   // Initialize Quantities to Simulate ToT Spectra
     487             : 
     488             :   TH1F * hToT= fCalib->GetTOFSimToT();
     489             :   Int_t nbins = hToT->GetNbinsX();
     490             :   Float_t delta = hToT->GetBinWidth(1);
     491             :   Float_t maxch = hToT->GetBinLowEdge(nbins)+delta;
     492             :   Float_t minch = hToT->GetBinLowEdge(1);
     493             :   Float_t max=0,min=0; //maximum and minimum value of the distribution
     494             :   Int_t maxbin=0,minbin=0; //maximum and minimum bin of the distribution
     495             : 
     496             :   for (Int_t ii=nbins; ii>0; ii--){
     497             :     if (hToT->GetBinContent(ii)!= 0) {
     498             :       max = maxch - (nbins-ii-1)*delta;
     499             :       maxbin = ii; 
     500             :       break;}
     501             :   }
     502             :   for (Int_t j=1; j<nbins; j++){
     503             :     if (hToT->GetBinContent(j)!= 0) {
     504             :       min = minch + (j-1)*delta;
     505             :       minbin = j; 
     506             :       break;}
     507             :   }
     508             : 
     509             :   Float_t maxToT=max;
     510             :   Float_t minToT=min;
     511             :  
     512             :   Float_t maxToTDistr=hToT->GetMaximum();
     513             : 
     514             :   AliDebug (1, Form(" The minimum ToT = %f", minToT)); 
     515             :   AliDebug (1, Form(" The maximum ToT = %f", maxToT)); 
     516             :   AliDebug (1, Form(" The maximum peak in ToT = %f", maxToTDistr)); 
     517             :   
     518             :   // Loop on TOF Digits
     519             : 
     520             :   Bool_t isToTSimulated=kFALSE;
     521             :   Bool_t misCalibPars=kFALSE;
     522             :   if(hToT->GetEntries()>0)isToTSimulated=kTRUE;  
     523             :   Int_t ndigits = fDigits->GetEntriesFast();
     524             :   for (Int_t i=0;i<ndigits;i++){
     525             :     AliTOFdigit * dig = (AliTOFdigit*)fDigits->At(i);
     526             :     Int_t detId[5];
     527             :     detId[0] = dig->GetSector();
     528             :     detId[1] = dig->GetPlate();
     529             :     detId[2] = dig->GetStrip();
     530             :     detId[3] = dig->GetPadz();
     531             :     detId[4] = dig->GetPadx();
     532             :     dig->SetTdcND(dig->GetTdc()); // save the non decalibrated time
     533             :     if(isToTSimulated){  
     534             : 
     535             :       //A realistic ToT Spectrum was found in input, 
     536             :       //decalibrated TOF Digits likely to be simulated....
     537             :  
     538             :       Int_t index = AliTOFGeometry::GetIndex(detId); // The channel index    
     539             :       AliTOFChannelOffline *calChannelOffline = (AliTOFChannelOffline *)calOffline->At(index); //retrieve the info for time slewing 
     540             :       Double_t par[6];  // time slewing parameters
     541             :   
     542             :       //check whether we actually ask for miscalibration
     543             : 
     544             :       for (Int_t j = 0; j<6; j++){
     545             :         par[j]=(Double_t)calChannelOffline->GetSlewPar(j);
     546             :         if(par[j]!=0)misCalibPars=kTRUE;
     547             :       }
     548             :       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]));
     549             : 
     550             :       // Now generate Realistic ToT distribution from TestBeam Data. 
     551             :       // Tot is in ns, assuming a Matching Window of 10 ns.
     552             : 
     553             :       Float_t simToT = 0;
     554             :       Float_t trix = 0;
     555             :       Float_t triy = 0;
     556             :       Double_t timeCorr;
     557             :       Double_t tToT;
     558             :       while (simToT <= triy){
     559             :         trix = gRandom->Rndm(i);
     560             :         triy = gRandom->Rndm(i);
     561             :         trix = (maxToT-minToT)*trix + minToT; 
     562             :         triy = maxToTDistr*triy;
     563             :         Int_t binx=hToT->FindBin(trix);
     564             :         simToT=hToT->GetBinContent(binx);
     565             :       }
     566             :       // the generated ToT (ns)
     567             :       tToT= (Double_t) trix; // to apply slewing we start from ns..
     568             :       // transform TOF signal in ns
     569             :       AliDebug(2,Form(" The Initial Time (counts): %i: ",dig->GetTdc()));
     570             :       AliDebug(2,Form(" Time before miscalibration (ps) %e: ",dig->GetTdc()*(Double_t)AliTOFGeometry::TdcBinWidth()));
     571             :       // add slewing effect
     572             :       timeCorr=par[0] + tToT*(par[1] +tToT*(par[2] +tToT*(par[3] +tToT*(par[4] +tToT*par[5])))); 
     573             :       AliDebug(2,Form(" The Time slewing + delay (ns): %f: ",timeCorr));
     574             :       // add global time shift
     575             :       //convert to ps
     576             :       timeCorr*=1E3;
     577             :       Double_t timeMis = (Double_t)(dig->GetTdc())*(Double_t)AliTOFGeometry::TdcBinWidth();
     578             :       timeMis = timeMis+timeCorr;
     579             :       AliDebug(2,Form(" The Miscalibrated time (ps): %e: ",timeMis));
     580             : 
     581             :       // now update the digit info
     582             :  
     583             :       Int_t tdcCorr= (Int_t)(timeMis/AliTOFGeometry::TdcBinWidth());
     584             :       AliDebug(2,Form(" Final Time (counts): %i: ",tdcCorr));
     585             :       // Setting Decalibrated Time signal (TDC counts)    
     586             :       dig->SetTdc(tdcCorr);   
     587             :       // Setting realistic ToT signal (TDC counts) 
     588             :       tToT*=1E3; //back to ps  
     589             :       Int_t tot=(Int_t)(tToT/AliTOFGeometry::ToTBinWidth());//(factor 1E3 as input ToT is in ns)
     590             :       dig->SetToT(tot); 
     591             :       AliDebug(2,Form(" Final Time and ToT (counts): %d: , %d:",dig->GetTdc(),dig->GetToT()));
     592             :       if(tdcCorr<0){
     593             :         AliWarning (Form(" The bad Slewed Time(TDC counts)= %d ", tdcCorr)); 
     594             :         AliWarning(Form(" The bad ToT (TDC counts)= %d ", tot)); 
     595             :       }
     596             :     }
     597             :     else{
     598             :     // For Data with no Miscalibration, set ToT signal == Adc
     599             :       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)
     600             :     }
     601             :   }
     602             : 
     603             :   if(!isToTSimulated)
     604             :     AliDebug(1,"Standard Production, no miscalibrated digits");
     605             :   else
     606             :     if(!misCalibPars)
     607             :       AliDebug(1,"Standard Production, no miscalibrated digits");
     608             :     else
     609             :       AliDebug(1,"Simulating miscalibrated digits");
     610             : 
     611             :   return;
     612             : }
     613             : */

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