HLT/comp/AliL3Modeller.cxx

   1 // @(#) $Id$
   2
   3 // Author: Anders Vestbo <mailto:vestbo@fi.uib.no>
   4 //*-- Copyright &copy ALICE HLT Group
   5 //_____________________________________________________________
   6 // AliL3Modeller
   7 //
   8 // Class for modeling TPC data.
   9 //
  10 // This performs the cluster finding, based on track parameters.
  11 // Basically it propagates the tracks to all padrows, and looks
  12 // for a corresponding cluster. For the moment only cog is calculated,
  13 // and no deconvolution is done.
  14
  15
  16 #include "AliL3StandardIncludes.h"
  17
  18 #include "AliL3Logging.h"
  19 #include "AliL3Modeller.h"
  20 #include "AliL3MemHandler.h"
  21 #include "AliL3TrackArray.h"
  22 #include "AliL3ModelTrack.h"
  23 #include "AliL3DigitData.h"
  24 #include "AliL3Transform.h"
  25 #include "AliL3SpacePointData.h"
  26
  27 #ifdef use_aliroot
  28 #include "AliL3FileHandler.h"
  29 #endif
  30
  31 #if __GNUC__ == 3
  32 using namespace std;
  33 #endif
  34
  35 ClassImp(AliL3Modeller)
  36
  37 AliL3Modeller::AliL3Modeller()
  38 {
  39   // default constructor
  40   fMemHandler=0;
  41   fTracks=0;
  42   fRow=0;
  43   fTrackThreshold=0;
  44   SetOverlap();
  45   SetTrackThreshold();
  46   SetSearchRange();
  47   SetMaxClusterRange(0,0);
  48   fDebug=kFALSE;
  49 }
  50
  51
  52 AliL3Modeller::~AliL3Modeller()
  53 {
  54   // destructor
  55   if(fMemHandler)
  56     delete fMemHandler;
  57   if(fTracks)
  58     delete fTracks;
  59   if(fRow)
  60     delete [] fRow;
  61 }
  62
  63 void AliL3Modeller::Init(Int_t slice,Int_t patch,Char_t *trackdata,Char_t *path,Bool_t houghtracks,Bool_t binary)
  64 {
  65   // Initialization
  66   fSlice = slice;
  67   fPatch = patch;
  68   fHoughTracks=houghtracks;
  69
  70   sprintf(fPath,"%s",path);
  71
  72   fTracks = new AliL3TrackArray("AliL3ModelTrack");
  73
  74   Char_t fname[100];
  75   AliL3MemHandler *file = new AliL3MemHandler();
  76   if(!houghtracks)
  77     sprintf(fname,"%s/tracks_tr_%d_0.raw",trackdata,fSlice); //output tracks from the tracker (no merging)
  78   else
  79     sprintf(fname,"%s/tracks_ho_%d.raw",trackdata,fSlice);
  80   //sprintf(fname,"%s/tracks_ho_%d_%d.raw",trackdata,fSlice,fPatch);
  81   if(!file->SetBinaryInput(fname))
  82     {
  83       cerr<<"AliL3Modeller::Init : Error opening trackfile: "<<fname<<endl;
  84       return;
  85     }
  86   file->Binary2TrackArray(fTracks);
  87   file->CloseBinaryInput();
  88   delete file;
  89
  90   if(!houghtracks)
  91     fTracks->QSort();
  92
  93   for(Int_t i=0; i<fTracks->GetNTracks(); i++)
  94     {
  95       AliL3ModelTrack *track = (AliL3ModelTrack*)fTracks->GetCheckedTrack(i);
  96       if(!track) continue;
  97       track->Init(fSlice,fPatch);
  98
  99       //Only if the tracks has been merged across sector boundaries:
 100       //if(!houghtracks)
 101       //track->Rotate(fSlice,kTRUE); //!!!!!!!!!!!!!!!!!!!
 102
 103       track->CalculateHelix();
 104     }
 105
 106   Int_t ntimes = AliL3Transform::GetNTimeBins()+1;
 107   Int_t npads = AliL3Transform::GetNPads(AliL3Transform::GetLastRow(fPatch))+1;//Max num of pads.
 108   Int_t bounds = ntimes*npads;
 109   fRow = new Digit[bounds];
 110
 111
 112   UInt_t ndigits=0;
 113   AliL3DigitRowData *digits=0;
 114 #ifdef use_aliroot
 115   fMemHandler = new AliL3FileHandler();
 116   fMemHandler->Init(slice,patch);
 117   if(binary == kFALSE)
 118     {
 119       sprintf(fname,"%s/digitfile.root",fPath);
 120       fMemHandler->SetAliInput(fname);
 121       digits = fMemHandler->AliAltroDigits2Memory(ndigits);
 122     }
 123   else
 124     {
 125       sprintf(fname,"%sdigits_%d_%d.raw",fPath,fSlice,fPatch);
 126       if(!fMemHandler->SetBinaryInput(fname))
 127         {
 128           cerr<<"AliL3Modeller::Init : Error opening file "<<fname<<endl;
 129           return;
 130         }
 131       digits=(AliL3DigitRowData*)fMemHandler->CompBinary2Memory(ndigits);
 132     }
 133 #else
 134   fMemHandler = new AliL3MemHandler();
 135   fMemHandler->Init(slice,patch);
 136   if(binary == kFALSE)
 137     {
 138       cerr<<"AliL3Modeller::Init : Compile with AliROOT if you want rootfile as input"<<endl;
 139       return;
 140     }
 141   else
 142     {
 143       sprintf(fname,"%sdigits_%d_%d.raw",fPath,fSlice,fPatch);
 144       if(!fMemHandler->SetBinaryInput(fname))
 145         {
 146           cerr<<"AliL3Modeller::Init : Error opening file "<<fname<<endl;
 147           return;
 148         }
 149     }
 150   digits=(AliL3DigitRowData*)fMemHandler->CompBinary2Memory(ndigits);
 151 #endif
 152
 153   SetInputData(digits);
 154 }
 155
 156 void AliL3Modeller::FindClusters()
 157 {
 158   // Finds clusters
 159   if(fDebug)
 160     cout<<"AliL3Modeller::FindClusters : Processing slice "<<fSlice<<" patch "<<fPatch<<endl;
 161   if(!fTracks)
 162     {
 163       cerr<<"AliL3Modeller::Process : No tracks"<<endl;
 164       return;
 165     }
 166   if(!fRowData)
 167     {
 168       cerr<<"AliL3Modeller::Process : No data "<<endl;
 169       return;
 170     }
 171
 172   AliL3DigitRowData *rowPt = fRowData;
 173   AliL3DigitData *digPt=0;
 174
 175   Int_t pad,time;
 176   Short_t charge;
 177   Cluster cluster;
 178   ClusterRegion region[200];
 179
 180   for(Int_t i=AliL3Transform::GetFirstRow(fPatch); i<=AliL3Transform::GetLastRow(fPatch); i++)
 181     {
 182       if(i != (Int_t)rowPt->fRow)
 183         {
 184           cerr<<"AliL3Modeller::FindClusters : Mismatching rownumbering "<<i<<" "<<rowPt->fRow<<endl;
 185           return;
 186         }
 187       fCurrentPadRow = i;
 188       memset((void*)fRow,0,(AliL3Transform::GetNTimeBins()+1)*(AliL3Transform::GetNPads(i)+1)*sizeof(Digit));
 189       digPt = (AliL3DigitData*)rowPt->fDigitData;
 190       //cout<<"Loading row "<<i<<" with "<<(Int_t)rowPt->fNDigit<<" digits"<<endl;
 191       for(UInt_t j=0; j<rowPt->fNDigit; j++)
 192         {
 193           pad = digPt[j].fPad;
 194           time = digPt[j].fTime;
 195           charge = digPt[j].fCharge;
 196           fRow[(AliL3Transform::GetNTimeBins()+1)*pad + time].fCharge = charge;
 197           fRow[(AliL3Transform::GetNTimeBins()+1)*pad + time].fUsed = kFALSE;
 198           //cout<<"Row "<<i<<" pad "<<pad<<" time "<<time<<" charge "<<charge<<endl;
 199         }
 200
 201       for(Int_t k=0; k<fTracks->GetNTracks(); k++)
 202         {
 203           AliL3ModelTrack *track = (AliL3ModelTrack*)fTracks->GetCheckedTrack(k);
 204           if(!track) continue;
 205
 206           if(track->GetPadHit(i)<0 || track->GetTimeHit(i)<0 || track->GetNOverlaps(i)>0)//track->GetOverlap(i)>=0)
 207             {
 208               //cout<<"Track "<<k<<" is empty on row "<<i<<" "<<track->GetPadHit(i)<<" "<<track->GetTimeHit(i)<<endl;
 209               track->SetCluster(i,0,0,0,0,0,0); //The track has left the patch, or it is overlapping
 210               continue;
 211             }
 212
 213           Int_t minpad,mintime,maxpad,maxtime;
 214           minpad = mintime = 999;
 215           maxpad = maxtime = 0;
 216
 217           memset(&cluster,0,sizeof(Cluster));
 218           LocateCluster(track,region,minpad,maxpad);//,mintime,maxtime);
 219           if(maxpad - minpad + 1 > fMaxPads ||  // maxtime - mintime + 1 > fMaxTimebins ||
 220              maxpad - minpad < 1)               //  || maxtime - mintime < 1)
 221             {
 222               //cout<<"Cluster not found on row "<<i<<" maxpad "<<maxpad<<" minpad "<<minpad<<" maxtime "<<maxtime<<" mintime "<<mintime
 223               //  <<" padhit "<<track->GetPadHit(i)<<" timehit "<<track->GetTimeHit(i)<<endl;
 224
 225               track->SetCluster(i,0,0,0,0,0,0);
 226               continue;
 227             }
 228
 229           Int_t npads=0;
 230           for(pad=minpad; pad<=maxpad; pad++)
 231             {
 232               Int_t ntimes=0;
 233               for(time=region[pad].fMintime; time<=region[pad].fMaxtime; time++)
 234                 {
 235                   charge = fRow[(AliL3Transform::GetNTimeBins()+1)*pad+time].fCharge;
 236                   if(!charge) continue;
 237                   if(fRow[(AliL3Transform::GetNTimeBins()+1)*pad+time].fUsed == kTRUE)
 238                     continue;
 239                   ntimes++;
 240
 241                   //Update the cluster parameters with this timebin
 242                   cluster.fTime += time*charge;
 243                   cluster.fPad += pad*charge;
 244                   cluster.fCharge += charge;
 245                   cluster.fSigmaY2 += pad*pad*charge;
 246                   cluster.fSigmaZ2 += time*time*charge;
 247                   fRow[(AliL3Transform::GetNTimeBins()+1)*pad+time].fUsed = kTRUE;
 248                 }
 249               if(ntimes)
 250                 npads++;
 251             }
 252           FillCluster(track,&cluster,i,npads);
 253         }
 254       FillZeros(rowPt);
 255       fMemHandler->UpdateRowPointer(rowPt);
 256     }
 257   //cout<<"done processing"<<endl;
 258
 259
 260   //Debug:
 261   for(Int_t i=0; i<fTracks->GetNTracks(); i++)
 262     {
 263       AliL3ModelTrack *track = (AliL3ModelTrack*)fTracks->GetCheckedTrack(i);
 264       if(!track) continue;
 265       if(track->GetNClusters() != AliL3Transform::GetNRows(fPatch))
 266         cerr<<endl<<"Mismatching hitcounts; nclusters: "<<track->GetNClusters()<<" nrows "<<AliL3Transform::GetNRows(fPatch)<<endl<<endl;
 267     }
 268
 269 }
 270
 271
 272 void AliL3Modeller::LocateCluster(AliL3ModelTrack *track,ClusterRegion *region,Int_t &padmin,Int_t &padmax)
 273 {
 274   //Set the cluster range
 275   //This method searches for _all_ nonzeros timebins which are neigbours.
 276   //This makes it rather impractical when dealing with high occupancy,
 277   //because then you might have very large "cluster" areas from low
 278   //pt electrons/noise.
 279
 280   Int_t row=fCurrentPadRow,charge,prtmin=0,prtmax=999;
 281   Int_t hitpad = (Int_t)rint(track->GetPadHit(row));
 282   Int_t hittime = (Int_t)rint(track->GetTimeHit(row));
 283   Int_t tmin = hittime;
 284   Int_t tmax = tmin;
 285
 286   Int_t clustercharge=0;
 287   Int_t pad=hitpad;
 288   Bool_t pm = kTRUE;
 289   Int_t npads=0,middlemax=tmax,middlemin=tmin;
 290   while(1)
 291     {
 292       Bool_t padpr=kFALSE;
 293       Int_t time = hittime;
 294       Bool_t tm = kTRUE;
 295       if(pad < 0)
 296         {
 297           padmin = 0;
 298           pad = hitpad+1;
 299           pm = kFALSE;
 300           prtmin = middlemin;
 301           prtmax = middlemax;
 302           continue;
 303         }
 304       else if(pad >= AliL3Transform::GetNPads(row))
 305         {
 306           padmax = AliL3Transform::GetNPads(row)-1;
 307           break;
 308         }
 309
 310       tmin = 999;
 311       tmax = 0;
 312       //if(row==0)
 313       //cout<<"Starting to look in pad "<<pad<<" time "<<time<<endl;
 314       while(1)
 315         {
 316           if(time < 0)
 317             {
 318               time = hittime+1;
 319               tm = kFALSE;
 320             }
 321           else if(time >= AliL3Transform::GetNTimeBins())
 322             {
 323               //timemax = AliL3Transform::GetNTimeBins()-1;
 324               break;
 325             }
 326           charge = fRow[(AliL3Transform::GetNTimeBins()+1)*pad+time].fCharge;
 327           //if(row==0)
 328           //cout<<"charge "<<charge<<" at pad "<<pad<<" time "<<time<<endl;
 329           if(charge>0)
 330             {
 331               clustercharge+=charge;
 332               padpr = kTRUE;
 333               if(time < tmin)
 334                 tmin = time;
 335               if(time > tmax)
 336                 tmax = time;
 337               if(tm)
 338                 time--;
 339               else
 340                 time++;
 341             }
 342           else
 343             {
 344               if(tm)
 345                 {
 346                   //if(abs(time - hittime) < fTimeSearch && padpr == kFALSE)//Keep looking
 347                   if(time > prtmin && npads!=0)
 348                     time--;
 349                   else
 350                     {
 351                       time = hittime+1;
 352                       tm=kFALSE;
 353                     }
 354                 }
 355               //else if(abs(time-hittime) < fTimeSearch && padpr == kFALSE)//Keep looking
 356               else if(time < prtmax && npads != 0)
 357                 time++;
 358               else
 359                 break;
 360             }
 361         }
 362       if(npads==0)
 363         {
 364           middlemax = tmax;
 365           middlemin = tmin;
 366         }
 367       //      if(row==0)
 368       //cout<<"tmax "<<tmax<<" tmin "<<tmin<<" prtmin "<<prtmin<<" ptrmax "<<prtmax<<endl;
 369
 370       if(padpr && tmax >= prtmin && tmin <= prtmax)//Sequence is overlapping with the previous
 371         {
 372           //if(row==0)
 373           //cout<<"Incrementing pad "<<endl;
 374           npads++;
 375
 376           region[pad].fMintime=tmin;
 377           region[pad].fMaxtime=tmax;
 378
 379           /*
 380           if(tmin < timemin)
 381             timemin=tmin;
 382           if(tmax > timemax)
 383             timemax=tmax;
 384           */
 385           if(pad < padmin)
 386             padmin = pad;
 387           if(pad > padmax)
 388             padmax = pad;
 389           if(pm)
 390             pad--;
 391           else
 392             pad++;
 393
 394           prtmin = tmin;
 395           prtmax = tmax;
 396         }
 397       else
 398         {
 399           if(pm)
 400             {
 401               if(abs(pad-hitpad)<fPadSearch && clustercharge == 0)
 402                 pad--;
 403               else
 404                 {
 405                   //if(row==0)
 406                   //cout<<"Setting new pad "<<hitpad+1<<endl;
 407                   pad = hitpad+1;
 408                   pm = kFALSE;
 409                   prtmin = middlemin;
 410                   prtmax = middlemax;
 411                   continue;
 412                 }
 413             }
 414           else
 415             {
 416               if(abs(pad-hitpad)<fPadSearch && clustercharge==0)
 417                 pad++;
 418               else
 419                 break;
 420             }
 421         }
 422     }
 423
 424 }
 425
 426
 427 void AliL3Modeller::FillCluster(AliL3ModelTrack *track,Cluster *cluster,Int_t row,Int_t npads)
 428 {
 429   // Fill clusters
 430   if(cluster->fCharge==0)
 431     {
 432       track->SetCluster(row,0,0,0,0,0,0);
 433       return;
 434     }
 435   Float_t fcharge = (Float_t)cluster->fCharge;
 436   Float_t fpad = ((Float_t)cluster->fPad/fcharge);
 437   Float_t ftime = ((Float_t)cluster->fTime/fcharge);
 438   Float_t sigmaY2,sigmaZ2;
 439   CalcClusterWidth(cluster,sigmaY2,sigmaZ2);
 440   track->SetCluster(row,fpad,ftime,fcharge,sigmaY2,sigmaZ2,npads);
 441 #ifdef do_mc
 442   Int_t trackID[3];
 443   GetTrackID((Int_t)rint(fpad),(Int_t)rint(ftime),trackID);
 444   track->SetClusterLabel(row,trackID);
 445 #endif
 446 }
 447
 448
 449
 450 void AliL3Modeller::FillZeros(AliL3DigitRowData *rowPt,Bool_t reversesign)
 451 {
 452   //Fill zero where data has been used.
 453
 454   AliL3DigitData *digPt = (AliL3DigitData*)rowPt->fDigitData;
 455   for(UInt_t j=0; j<rowPt->fNDigit; j++)
 456     {
 457       Int_t pad = digPt[j].fPad;
 458       Int_t time = digPt[j].fTime;
 459       if(fRow[(AliL3Transform::GetNTimeBins()+1)*pad+time].fUsed==kTRUE)
 460         {
 461           if(reversesign)
 462             {
 463               if(digPt[j].fCharge < 1024)
 464                 digPt[j].fCharge += 1024;
 465             }
 466           else
 467             digPt[j].fCharge = 0;
 468         }
 469     }
 470 }
 471
 472 void AliL3Modeller::WriteRemaining()
 473 {
 474   //Write remaining (nonzero) digits to file.
 475
 476   AliL3DigitRowData *rowPt;
 477   rowPt = (AliL3DigitRowData*)fRowData;
 478   Int_t digitcount=0;
 479   Int_t *ndigits=new Int_t[(AliL3Transform::GetNRows(fPatch))];
 480   for(Int_t i=AliL3Transform::GetFirstRow(fPatch); i<=AliL3Transform::GetLastRow(fPatch); i++)
 481     {
 482       AliL3DigitData *digPt = (AliL3DigitData*)rowPt->fDigitData;
 483       ndigits[(i-AliL3Transform::GetFirstRow(fPatch))]=0;
 484       for(UInt_t j=0; j<rowPt->fNDigit; j++)
 485         {
 486           if(digPt[j].fCharge==0) continue;
 487           digitcount++;
 488           ndigits[(i-AliL3Transform::GetFirstRow(fPatch))]++;
 489         }
 490       //cout<<"Difference "<<(int)ndigits[(i-AliL3Transform::GetFirstRow(fPatch))]<<" "<<(int)rowPt->fNDigit<<endl;
 491       fMemHandler->UpdateRowPointer(rowPt);
 492     }
 493
 494   Int_t size = digitcount*sizeof(AliL3DigitData) + AliL3Transform::GetNRows(fPatch)*sizeof(AliL3DigitRowData);
 495   Byte_t *data = new Byte_t[size];
 496   memset(data,0,size);
 497   AliL3DigitRowData *tempPt = (AliL3DigitRowData*)data;
 498   rowPt = (AliL3DigitRowData*)fRowData;
 499
 500   for(Int_t i=AliL3Transform::GetFirstRow(fPatch); i<=AliL3Transform::GetLastRow(fPatch); i++)
 501     {
 502       Int_t localcount=0;
 503       tempPt->fRow = i;
 504       tempPt->fNDigit = ndigits[(i-AliL3Transform::GetFirstRow(fPatch))];
 505       AliL3DigitData *digPt = (AliL3DigitData*)rowPt->fDigitData;
 506       for(UInt_t j=0; j<rowPt->fNDigit; j++)
 507         {
 508           if(digPt[j].fCharge==0) continue;
 509           if(localcount >= ndigits[(i-AliL3Transform::GetFirstRow(fPatch))])
 510             {
 511               cerr<<"AliL3Modeller::WriteRemaining : Digitarray out of range!!"<<endl;
 512               return;
 513             }
 514           tempPt->fDigitData[localcount].fCharge = digPt[j].fCharge;
 515           tempPt->fDigitData[localcount].fPad = digPt[j].fPad;
 516           tempPt->fDigitData[localcount].fTime = digPt[j].fTime;
 517
 518           localcount++;
 519         }
 520       if(ndigits[(i-AliL3Transform::GetFirstRow(fPatch))] != localcount)
 521         {
 522           cerr<<"AliL3Modeller::WriteRemaining : Mismatch in digitcount"<<endl;
 523           return;
 524         }
 525       fMemHandler->UpdateRowPointer(rowPt);
 526       Byte_t *tmp = (Byte_t*)tempPt;
 527       Int_t size = sizeof(AliL3DigitRowData) + ndigits[(i-AliL3Transform::GetFirstRow(fPatch))]*sizeof(AliL3DigitData);
 528       tmp += size;
 529       tempPt = (AliL3DigitRowData*)tmp;
 530     }
 531
 532   Char_t fname[100];
 533   AliL3MemHandler *mem = new AliL3MemHandler();
 534   sprintf(fname,"%s/comp/remains_%d_%d.raw",fPath,fSlice,fPatch);
 535   mem->Init(fSlice,fPatch);
 536   mem->SetBinaryOutput(fname);
 537   mem->Memory2CompBinary((UInt_t)AliL3Transform::GetNRows(fPatch),(AliL3DigitRowData*)data);
 538   mem->CloseBinaryOutput();
 539   delete mem;
 540   delete [] data;
 541   delete [] ndigits;
 542 }
 543
 544 void AliL3Modeller::RemoveBadTracks()
 545 {
 546   //Remove tracsk which should not be included in the compression scheme.
 547
 548   for(Int_t i=0; i<fTracks->GetNTracks(); i++)
 549     {
 550       AliL3ModelTrack *track = (AliL3ModelTrack*)fTracks->GetCheckedTrack(i);
 551       if(!track) continue;
 552
 553       if(track->GetPt() < 0.08)
 554         {
 555           fTracks->Remove(i);
 556           continue;
 557         }
 558
 559       if(!fHoughTracks)
 560         if(track->GetNHits() < fTrackThreshold)
 561           fTracks->Remove(i);
 562     }
 563   fTracks->Compress();
 564
 565 }
 566
 567 void AliL3Modeller::CalculateCrossingPoints()
 568 {
 569   // calculates crossing points
 570   if(fDebug)
 571     cout<<"Calculating crossing points on "<<fTracks->GetNTracks()<<" tracks"<<endl;
 572   if(!fTracks)
 573     {
 574       cerr<<"AliL3Modeller::CalculateCrossingPoints(): No tracks"<<endl;
 575       return;
 576     }
 577   Float_t hit[3];
 578
 579   Int_t sector,row;
 580   for(Int_t i=AliL3Transform::GetLastRow(fPatch); i>=AliL3Transform::GetFirstRow(fPatch); i--)
 581     {
 582       for(Int_t j=0; j<fTracks->GetNTracks(); j++)
 583         {
 584           AliL3ModelTrack *track = (AliL3ModelTrack*)fTracks->GetCheckedTrack(j);
 585           if(!track) continue;
 586
 587           if(!track->GetCrossingPoint(i,hit))
 588             {
 589               //cerr<<"AliL3Modeller::CalculateCrossingPoints : Track "<<j<<" does not intersect row "<<i<<" :"<<endl<<
 590               //        " pt "<<track->GetPt()<<
 591               //        " tgl "<<track->GetTgl()<<" psi "<<track->GetPsi()<<" charge "<<track->GetCharge()<<endl;
 592               //fTracks->Remove(j);
 593               track->SetPadHit(i,-1);
 594               track->SetTimeHit(i,-1);
 595               continue;
 596             }
 597           //cout<<"X "<<hit[0]<<" Y "<<hit[1]<<" Z "<<hit[2]<<" tgl "<<track->GetTgl()<<endl;
 598
 599           AliL3Transform::Slice2Sector(fSlice,i,sector,row);
 600           AliL3Transform::Local2Raw(hit,sector,row);
 601           //cout<<"Pad "<<hit[1]<<" time "<<hit[2]<<" in sector "<<sector<<" row "<<row<<endl;
 602           if(hit[1]<0 || hit[1]>AliL3Transform::GetNPads(i) ||
 603              hit[2]<0 || hit[2]>AliL3Transform::GetNTimeBins())
 604             {//Track is leaving the patch, so flag the track hits (<0)
 605               track->SetPadHit(i,-1);
 606               track->SetTimeHit(i,-1);
 607               continue;
 608             }
 609
 610           track->SetPadHit(i,hit[1]);
 611           track->SetTimeHit(i,hit[2]);
 612           track->CalculateClusterWidths(i);
 613
 614           Double_t beta = track->GetCrossingAngle(i);
 615           track->SetCrossingAngleLUT(i,beta);
 616
 617           //if(hit[1]<0 || hit[2]>445)
 618           //if(hit[2]<0 || hit[2]>445)
 619           //cout<<"pad "<<hit[1]<<" time "<<hit[2]<<" pt "<<track->GetPt()<<" psi "<<track->GetPsi()<<" tgl "<<track->GetTgl()<<" firstpoint "<<track->GetFirstPointX()<<" "<<track->GetFirstPointY()<<" "<<track->GetFirstPointZ()<<endl;
 620           //cout<<"Crossing pad "<<hit[1]<<" time "<<hit[2]<<endl;
 621         }
 622     }
 623   fTracks->Compress();
 624   if(fDebug)
 625     cout<<"And there are "<<fTracks->GetNTracks()<<" tracks remaining"<<endl;
 626 }
 627
 628 void AliL3Modeller::CheckForOverlaps(Float_t dangle,Int_t *rowrange)
 629 {
 630   //Flag the tracks that overlap
 631
 632   if(fDebug)
 633     cout<<"Checking for overlaps on "<<fTracks->GetNTracks()<<endl;
 634   Int_t counter=0;
 635
 636   for(Int_t k=AliL3Transform::GetFirstRow(fPatch); k<=AliL3Transform::GetLastRow(fPatch); k++)
 637     {
 638       if(rowrange)
 639         {
 640           if(k < rowrange[0]) continue;
 641           if(k > rowrange[1]) break;
 642         }
 643       for(Int_t i=0; i<fTracks->GetNTracks(); i++)
 644         {
 645           AliL3ModelTrack *track1 = (AliL3ModelTrack*)fTracks->GetCheckedTrack(i);
 646           if(!track1) continue;
 647           if(track1->GetPadHit(k)<0 || track1->GetTimeHit(k)<0) continue;
 648
 649           for(Int_t j=i+1; j<fTracks->GetNTracks(); j++)
 650             {
 651               AliL3ModelTrack *track2 = (AliL3ModelTrack*)fTracks->GetCheckedTrack(j);
 652               if(!track2) continue;
 653               if(track2->GetPadHit(k)<0 || track2->GetTimeHit(k)<0) continue;
 654
 655               if(abs((Int_t)rint(track1->GetPadHit(k))-(Int_t)rint(track2->GetPadHit(k))) <= fPadOverlap &&
 656                  abs((Int_t)rint(track1->GetTimeHit(k))-(Int_t)rint(track2->GetTimeHit(k))) <= fTimeOverlap)
 657                 {
 658                   if(dangle>0 && fabs(track1->GetCrossingAngleLUT(k) - track2->GetCrossingAngleLUT(k)) < dangle)
 659                     fTracks->Remove(j);
 660
 661                   //cout<<"row "<<k<<" "<<i<<" "<<j<<" "<<track1->GetPadHit(k)<<" "<<track2->GetPadHit(k)<<" "<<fabs(track1->GetCrossingAngleLUT(k) - track2->GetCrossingAngleLUT(k))<<endl;
 662
 663                   else
 664                     track1->SetOverlap(k,j);
 665                   counter++;
 666                 }
 667             }
 668         }
 669     }
 670   fTracks->Compress();
 671   if(fDebug)
 672     cout<<"and there are "<<fTracks->GetNTracks()<<" track left"<<endl;
 673   //cout<<"found "<<counter<<" done"<<endl;
 674 }
 675
 676
 677 void AliL3Modeller::CalcClusterWidth(Cluster *cl,Float_t &sigmaY2,Float_t &sigmaZ2)
 678 {
 679   // calculates cluster's width
 680   Float_t padw,timew;
 681
 682   padw = AliL3Transform::GetPadPitchWidth(fPatch);
 683
 684   Float_t charge = (Float_t)cl->fCharge;
 685   Float_t pad = (Float_t)cl->fPad/charge;
 686   Float_t time = (Float_t)cl->fTime/charge;
 687   Float_t s2 = (Float_t)cl->fSigmaY2/charge - pad*pad;
 688
 689   //Save the sigmas in pad and time:
 690
 691   sigmaY2 = (s2);// + 1./12);//*padw*padw;
 692
 693   /*Constants added by offline
 694     if(s2 != 0)
 695     {
 696     sigmaY2 = sigmaY2*0.108;
 697     if(fPatch<3)
 698     sigmaY2 = sigmaY2*2.07;
 699     }
 700   */
 701
 702   s2 = (Float_t)cl->fSigmaZ2/charge - time*time;
 703   timew = AliL3Transform::GetZWidth();
 704   sigmaZ2 = (s2);// +1./12);//*timew*timew;
 705
 706
 707
 708   /*
 709     Constants added by offline
 710     if(s2 != 0)
 711     {
 712     sigmaZ2 = sigmaZ2*0.169;
 713     if(fPatch < 3)
 714     sigmaZ2 = sigmaZ2*1.77;
 715     }
 716   */
 717 }
 718
 719 #ifdef do_mc
 720 void AliL3Modeller::GetTrackID(Int_t pad,Int_t time,Int_t *trackID)
 721 {
 722   // Gets track ID
 723   AliL3DigitRowData *rowPt = (AliL3DigitRowData*)fRowData;
 724
 725   trackID[0]=trackID[1]=trackID[2]=-2;
 726
 727   for(Int_t i=AliL3Transform::GetFirstRow(fPatch); i<=AliL3Transform::GetLastRow(fPatch); i++)
 728     {
 729       if(rowPt->fRow < (UInt_t)fCurrentPadRow)
 730         {
 731           AliL3MemHandler::UpdateRowPointer(rowPt);
 732           continue;
 733         }
 734       AliL3DigitData *digPt = (AliL3DigitData*)rowPt->fDigitData;
 735       for(UInt_t j=0; j<rowPt->fNDigit; j++)
 736         {
 737           Int_t cpad = digPt[j].fPad;
 738           Int_t ctime = digPt[j].fTime;
 739           if(cpad != pad) continue;
 740           if(ctime != time) continue;
 741           //if(cpad != pad && ctime != ctime) continue;
 742           //cout<<"Reading row "<<fCurrentRow<<" pad "<<cpad<<" time "<<ctime<<" trackID "<<digPt[j].fTrackID[0]<<endl;
 743           trackID[0] = digPt[j].fTrackID[0];
 744           trackID[1] = digPt[j].fTrackID[1];
 745           trackID[2] = digPt[j].fTrackID[2];
 746           break;
 747           //cout<<"Reading trackID "<<trackID[0]<<endl;
 748         }
 749       break;
 750     }
 751 #else
 752   void AliL3Modeller::GetTrackID(Int_t /*pad*/,Int_t /*time*/,Int_t */*trackID*/)
 753 {
 754   // Does nothing if do_mc undefined
 755   return;
 756 #endif
 757 }
 758