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