MUON/AliMUONMerger.cxx

   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 /* $Id$ */
  17
  18 #include <TObjArray.h>
  19 #include <TFile.h>
  20 #include <TError.h>
  21 //#include <TTree.h>
  22 //#include <TDirectory.h>
  23 #include "AliLog.h"
  24
  25 #include "AliMUONMerger.h"
  26 #include "AliMUON.h"
  27 #include "AliMUONPadHit.h"
  28 #include "AliMUONTransientDigit.h"
  29 #include "AliHitMap.h"
  30 //#include "AliMUONChamber.h"
  31 //#include "AliMUONConstants.h"
  32 //#include "AliMUONHit.h"
  33 //#include "AliMUONHitMapA1.h"
  34 //#include "AliRun.h"
  35
  36 ClassImp(AliMUONMerger)
  37
  38 //----------------------------------------------------------------------
  39 AliMUONMerger::AliMUONMerger()
  40 {
  41 // Default constructor
  42     fEvNrSig = 0;
  43     fEvNrBgr = 0;
  44     fMerge   = kDigitize;
  45     fFnBgr   = 0;
  46     fHitMap  = 0;
  47     fList    = 0;
  48     fTrH1    = 0;
  49     fHitsBgr = 0;
  50     fPadHitsBgr = 0;
  51     fHitMap     = 0;
  52     fList       = 0;
  53     fBgrFile    = 0;
  54     fDebug      = 0;
  55 }
  56
  57 //----------------------------------------------------------------------
  58 AliMUONMerger::AliMUONMerger(const AliMUONMerger&)
  59 {
  60 // Protected copy constructor
  61
  62   Fatal("copy constructor","Not implemented.");
  63 }
  64
  65 //------------------------------------------------------------------------
  66 AliMUONMerger::~AliMUONMerger()
  67 {
  68 // Destructor
  69     if (fTrH1)       delete fTrH1;
  70     if (fHitsBgr)    delete fHitsBgr;
  71     if (fPadHitsBgr) delete fPadHitsBgr;
  72     if (fHitMap)     delete [] fHitMap;
  73     if (fList)       delete fList;
  74     if (fBgrFile)    delete fBgrFile;
  75 }
  76
  77 //----------------------------------------------------------------------
  78 AliMUONMerger&  AliMUONMerger::operator=(const AliMUONMerger& rhs)
  79 {
  80 // Protected assignement operator
  81
  82   if (this == &rhs) return *this;
  83
  84   Fatal("operator=", "Not implemented.");
  85
  86   return *this;
  87 }
  88
  89 //------------------------------------------------------------------------
  90 Bool_t AliMUONMerger::Exists(const AliMUONPadHit *padhit) const
  91 {
  92 // test if the given padhit was already fired
  93     return (fHitMap[fNch]->TestHit(padhit->PadX(),padhit->PadY()));
  94 }
  95
  96 //------------------------------------------------------------------------
  97 void AliMUONMerger::Update(AliMUONPadHit *padhit)
  98 {
  99 // add new contribution to the fired padhit
 100     AliMUONTransientDigit *pdigit =
 101       static_cast<AliMUONTransientDigit*>(
 102       fHitMap[fNch]->GetHit(padhit->PadX(),padhit->PadY()));
 103
 104     // update charge
 105     //
 106     Int_t iqpad    = padhit->QPad();        // charge per pad
 107     pdigit->AddSignal(iqpad);
 108     pdigit->AddPhysicsSignal(iqpad);
 109
 110     // update list of tracks
 111     //
 112     Int_t track, charge;
 113     if (fSignal) {
 114       track = fTrack;
 115       charge = iqpad;
 116     } else {
 117       track = kBgTag;
 118       charge = kBgTag;
 119     }
 120     pdigit->UpdateTrackList(track,charge);
 121 }
 122
 123 //------------------------------------------------------------------------
 124 void AliMUONMerger::CreateNew(AliMUONPadHit *padhit)
 125 {
 126 // add new transient digit to the list, update hit map
 127     fList->AddAtAndExpand(
 128         new AliMUONTransientDigit(fNch,fDigits),fCounter);
 129     fHitMap[fNch]->SetHit(padhit->PadX(),padhit->PadY(),fCounter);
 130     AliMUONTransientDigit* pdigit =
 131       static_cast<AliMUONTransientDigit*>(fList->Last());
 132     // list of tracks
 133     Int_t track, charge;
 134     if (fSignal) {
 135       track = fTrack;
 136       charge = padhit->QPad();
 137     } else {
 138       track = kBgTag;
 139       charge = kBgTag;
 140     }
 141     pdigit->AddToTrackList(track,charge);
 142     fCounter++;
 143 }
 144
 145
 146 //------------------------------------------------------------------------
 147 void AliMUONMerger::Init()
 148 {
 149 // Initialisation
 150     // open only once the background file !!
 151     if (fMerge && !fBgrFile) fBgrFile = InitBgr();
 152 }
 153
 154
 155
 156 //------------------------------------------------------------------------
 157 TFile* AliMUONMerger::InitBgr()
 158 {
 159 // Initialise background event
 160     TFile *file = new TFile(fFnBgr);
 161 // add error checking later
 162     printf("\n AliMUONMerger has opened %s file with background event \n", fFnBgr);
 163     fHitsBgr     = new TClonesArray("AliMUONHit",1000);
 164     fPadHitsBgr  = new TClonesArray("AliMUONPadHit",1000);
 165     return file;
 166 }
 167
 168 //------------------------------------------------------------------------
 169 void AliMUONMerger::Digitise()
 170 {
 171
 172     // keep galice.root for signal and name differently the file for
 173     // background when add! otherwise the track info for signal will be lost !
 174   // Obsolete sep 2003 Gines MARTINEZ
 175   //    AliMUONChamber*   iChamber;
 176 //      AliSegmentation*  segmentation;
 177
 178 //      fList = new TObjArray;
 179
 180 //      AliMUON *pMUON  = (AliMUON *) gAlice->GetModule("MUON");
 181 //      fHitMap= new AliHitMap* [AliMUONConstants::NCh()];
 182 //      if (fMerge ) {
 183 //      fBgrFile->cd();
 184 //          //
 185 //      // Get Hits Tree header from file
 186 //      //if(fHitsBgr) fHitsBgr->Clear();     // Useless because line 327
 187 //      //if(fPadHitsBgr) fPadHitsBgr->Clear(); // Useless because line 328
 188 //      if(fTrH1) delete fTrH1;
 189 //      fTrH1 = 0;
 190
 191 //      char treeName[20];
 192 //      sprintf(treeName,"TreeH%d",fEvNrBgr);
 193 //      fTrH1 = (TTree*)gDirectory->Get(treeName);
 194 //      if (!fTrH1) {
 195 //          printf("ERROR: cannot find Hits Tree for event:%d\n",fEvNrBgr);
 196 //      }
 197 //          //
 198 //      // Set branch addresses
 199 //      TBranch *branch;
 200 //      char branchname[20];
 201 //      sprintf(branchname,"%s",pMUON->GetName());
 202 //      if (fTrH1 && fHitsBgr) {
 203 //          branch = fTrH1->GetBranch(branchname);
 204 //          if (branch) branch->SetAddress(&fHitsBgr);
 205 //      }
 206 //      if (fTrH1 && fPadHitsBgr) {
 207 //          branch = fTrH1->GetBranch("MUONCluster");
 208 //          if (branch) branch->SetAddress(&fPadHitsBgr);
 209 //      }
 210 //      }
 211 //      //
 212 //      // loop over cathodes
 213 //      //
 214 //      fSignal = kTRUE;
 215 //      for (int icat = 0; icat < 2; icat++) {
 216 //      fCounter = 0;
 217 //      for (Int_t i = 0; i < AliMUONConstants::NCh(); i++) {
 218 //          iChamber = &(pMUON->Chamber(i));
 219 //          if (iChamber->Nsec() == 1 && icat == 1) {
 220 //              continue;
 221 //          } else {
 222 //              segmentation = iChamber->SegmentationModel(icat+1);
 223 //          }
 224 //          fHitMap[i] = new AliMUONHitMapA1(segmentation, fList);
 225 //      }
 226
 227 //  //
 228 //  //   Loop over tracks
 229 //  //
 230
 231 //  /******************************************************************/
 232 //        TTree* treeH = pMUON->TreeH();
 233 //        if (treeH == 0x0)
 234 //         {
 235 //           cerr<<"AliMUONMerger::Exec: Can not get TreeH"<<endl;
 236 //           return;
 237 //         }
 238 //  /******************************************************************/
 239
 240
 241
 242 //      Int_t ntracks = (Int_t) treeH->GetEntries();
 243 //      treeH->SetBranchStatus("*",0); // switch off all branches
 244 //          treeH->SetBranchStatus("MUON*",1); // switch on only MUON
 245
 246 //      for (fTrack = 0; fTrack < ntracks; fTrack++) {
 247 //          gAlice->ResetHits();
 248 //          treeH->GetEntry(fTrack,0);
 249 //  //
 250 //  //   Loop over hits
 251 //          for(AliMUONHit* mHit = (AliMUONHit*)pMUON->FirstHit(-1);
 252 //              mHit;
 253 //              mHit = (AliMUONHit*)pMUON->NextHit())
 254 //          {
 255 //              fNch = mHit->Chamber()-1;  // chamber number
 256 //              if (fNch > AliMUONConstants::NCh()-1) continue;
 257 //              iChamber = &(pMUON->Chamber(fNch));
 258
 259 //  //
 260 //  // Loop over pad hits
 261 //              for (AliMUONPadHit* mPad =
 262 //                       (AliMUONPadHit*)pMUON->FirstPad(mHit,pMUON->PadHits());
 263 //                   mPad;
 264 //                   mPad = (AliMUONPadHit*)pMUON->NextPad(pMUON->PadHits()))
 265 //              {
 266 //                  Int_t cathode  = mPad->Cathode();      // cathode number
 267 //                  if (cathode != (icat+1)) continue;
 268 //                  Int_t iqpad    = Int_t(mPad->QPad());  // charge per pad
 269 //  //              segmentation = iChamber->SegmentationModel(cathode);
 270 //                  fDigits[0] = mPad->PadX();
 271 //                  fDigits[1] = mPad->PadY();
 272 //                  if (!(fHitMap[fNch]->ValidateHit(fDigits[0], fDigits[1]))) continue;
 273 //                  fDigits[2] = icat;
 274 //                  fDigits[3] = iqpad;
 275 //                  fDigits[4] = iqpad;
 276 //                  if (mHit->Particle() == kMuonPlus ||
 277 //                      mHit->Particle() == kMuonMinus) {
 278 //                      fDigits[5] = mPad->HitNumber();
 279 //                  } else fDigits[5] = -1;
 280
 281 //                  // build the list of fired pads and update the info
 282
 283 //                  if (!Exists(mPad)) {
 284 //                      CreateNew(mPad);
 285 //                  } else {
 286 //                      Update(mPad);
 287 //                  } //  end if pdigit
 288 //              } //end loop over clusters
 289 //          } // hit loop
 290 //      } // track loop
 291
 292 //      // open the file with background
 293
 294 //      if (fMerge) {
 295 //              fSignal = kFALSE;
 296 //          ntracks = (Int_t)fTrH1->GetEntries();
 297 //  //
 298 //  //   Loop over tracks
 299 //  //
 300 //          for (fTrack = 0; fTrack < ntracks; fTrack++) {
 301
 302 //              if (fHitsBgr)       fHitsBgr->Clear();
 303 //              if (fPadHitsBgr)    fPadHitsBgr->Clear();
 304
 305 //              fTrH1->GetEvent(fTrack);
 306 //  //
 307 //  //   Loop over hits
 308 //              AliMUONHit* mHit;
 309 //              for(Int_t i = 0; i < fHitsBgr->GetEntriesFast(); ++i)
 310 //              {
 311 //                  mHit   = (AliMUONHit*) (*fHitsBgr)[i];
 312 //                  fNch   = mHit->Chamber()-1;  // chamber number
 313 //                  iChamber = &(pMUON->Chamber(fNch));
 314 //  //
 315 //  // Loop over pad hits
 316 //                  for (AliMUONPadHit* mPad =
 317 //                           (AliMUONPadHit*)pMUON->FirstPad(mHit,fPadHitsBgr);
 318 //                       mPad;
 319 //                       mPad = (AliMUONPadHit*)pMUON->NextPad(fPadHitsBgr))
 320 //                  {
 321 //                      Int_t cathode  = mPad->Cathode();     // cathode number
 322 //                      Int_t ipx      = mPad->PadX();        // pad number on X
 323 //                      Int_t ipy      = mPad->PadY();        // pad number on Y
 324 //                      Int_t iqpad    = Int_t(mPad->QPad()); // charge per pad
 325 //                      if (!(fHitMap[fNch]->ValidateHit(ipx, ipy))) continue;
 326
 327 //                      if (cathode != (icat+1)) continue;
 328 //                      fDigits[0] = ipx;
 329 //                      fDigits[1] = ipy;
 330 //                      fDigits[2] = icat;
 331 //                      fDigits[3] = iqpad;
 332 //                      fDigits[4] = 0;
 333 //                      fDigits[5] = -1;
 334
 335 //                      // build the list of fired pads and update the info
 336 //                      if (!Exists(mPad)) {
 337 //                          CreateNew(mPad);
 338 //                      } else {
 339 //                          Update(mPad);
 340 //                      } //  end if !Exists
 341 //                  } //end loop over clusters
 342 //              } // hit loop
 343 //          } // track loop
 344
 345 //          TTree *treeK = gAlice->TreeK();
 346 //              TFile *file = NULL;
 347
 348 //          if (treeK) file = treeK->GetCurrentFile();
 349 //          file->cd();
 350 //      } // if fMerge
 351
 352 //      Int_t tracks[kMAXTRACKS];
 353 //      Int_t charges[kMAXTRACKS];
 354 //      Int_t nentries = fList->GetEntriesFast();
 355
 356 //      for (Int_t nent = 0; nent < nentries; nent++) {
 357 //          AliMUONTransientDigit *address = (AliMUONTransientDigit*)fList->At(nent);
 358 //          if (address == 0) continue;
 359 //          Int_t ich = address->Chamber();
 360 //          Int_t   q = address->Signal();
 361 //          iChamber = &(pMUON->Chamber(ich));
 362 //  //
 363 //  //  Digit Response (noise, threshold, saturation, ...)
 364 //          AliMUONResponse * response = iChamber->ResponseModel();
 365 //          q = response->DigitResponse(q,address);
 366
 367 //          if (!q) continue;
 368
 369 //          fDigits[0] = address->PadX();
 370 //          fDigits[1] = address->PadY();
 371 //          fDigits[2] = address->Cathode();
 372 //          fDigits[3] = q;
 373 //          fDigits[4] = address->Physics();
 374 //          fDigits[5] = address->Hit();
 375
 376 //          Int_t nptracks = address->GetNTracks();
 377
 378 //          if (nptracks > kMAXTRACKS) {
 379 //              if (fDebug>0)
 380 //                printf("\n Attention - nptracks > kMAXTRACKS %d \n", nptracks);
 381 //              nptracks = kMAXTRACKS;
 382 //          }
 383 //          if (nptracks > 2) {
 384 //              if (fDebug>0) {
 385 //                printf("Attention - nptracks > 2  %d \n",nptracks);
 386 //                printf("cat,ich,ix,iy,q %d %d %d %d %d \n",icat,ich,fDigits[0],fDigits[1],q);
 387 //              }
 388 //          }
 389 //          for (Int_t tr = 0; tr < nptracks; tr++) {
 390 //              tracks[tr]   = address->GetTrack(tr);
 391 //              charges[tr]  = address->GetCharge(tr);
 392 //          }      //end loop over list of tracks for one pad
 393 //              // Sort list of tracks according to charge
 394 //          if (nptracks > 1) {
 395 //              SortTracks(tracks,charges,nptracks);
 396 //          }
 397 //          if (nptracks < kMAXTRACKS ) {
 398 //              for (Int_t i = nptracks; i < kMAXTRACKS; i++) {
 399 //                  tracks[i]  = 0;
 400 //                  charges[i] = 0;
 401 //              }
 402 //          }
 403
 404 //          // fill digits
 405 //          pMUON->AddDigits(ich,tracks,charges,fDigits);
 406 //      }
 407 //      gAlice->TreeD()->Fill();
 408 //      pMUON->ResetDigits();
 409 //      fList->Delete();
 410
 411
 412 //      for(Int_t ii = 0; ii < AliMUONConstants::NCh(); ++ii) {
 413 //          if (fHitMap[ii]) {
 414 //              delete fHitMap[ii];
 415 //              fHitMap[ii] = 0;
 416 //          }
 417 //      }
 418 //      } //end loop over cathodes
 419 //      delete [] fHitMap;
 420 //      delete fList;
 421
 422 //  no need to delete ... and it makes a crash also
 423 //    if (fHitsBgr)    fHitsBgr->Delete();
 424 //    if (fPadHitsBgr) fPadHitsBgr->Delete();
 425     // gObjectTable->Print();
 426 }
 427
 428
 429
 430 void AliMUONMerger::SortTracks(Int_t *tracks,Int_t *charges,Int_t ntr) const
 431 {
 432   //
 433   // Sort the list of tracks contributing to a given digit
 434   // Only the 3 most significant tracks are acctually sorted
 435   //
 436
 437   //
 438   //  Loop over signals, only 3 times
 439   //
 440
 441   Int_t qmax;
 442   Int_t jmax;
 443   Int_t idx[3] = {-2,-2,-2};
 444   Int_t jch[3] = {-2,-2,-2};
 445   Int_t jtr[3] = {-2,-2,-2};
 446   Int_t i,j,imax;
 447
 448   if (ntr<3) imax=ntr;
 449   else imax=3;
 450   for(i=0;i<imax;i++){
 451     qmax=0;
 452     jmax=0;
 453
 454     for(j=0;j<ntr;j++){
 455
 456       if((i == 1 && j == idx[i-1])
 457          ||(i == 2 && (j == idx[i-1] || j == idx[i-2]))) continue;
 458
 459       if(charges[j] > qmax) {
 460         qmax = charges[j];
 461         jmax=j;
 462       }
 463     }
 464
 465     if(qmax > 0) {
 466       idx[i]=jmax;
 467       jch[i]=charges[jmax];
 468       jtr[i]=tracks[jmax];
 469     }
 470
 471   }
 472
 473   for(i=0;i<3;i++){
 474     if (jtr[i] == -2) {
 475          charges[i]=0;
 476          tracks[i]=0;
 477     } else {
 478          charges[i]=jch[i];
 479          tracks[i]=jtr[i];
 480     }
 481   }
 482 }
 483
 484
 485