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