HLT/src/AliL3Merger.cxx

   1 //$Id$
   2
   3 // Author: Uli Frankenfeld <mailto:franken@fi.uib.no>
   4 //*-- Copyright &copy Uli
   5
   6 #include "AliL3StandardIncludes.h"
   7
   8 #include "AliL3Logging.h"
   9 #include "AliL3Merger.h"
  10 #include "AliL3Track.h"
  11 #include "AliL3TrackSegmentData.h"
  12 #include "AliL3Transform.h"
  13 #include "AliL3TrackArray.h"
  14
  15 #ifdef use_root //use root ntuple for slow merge
  16 #include <TNtuple.h>
  17 #include <TTree.h>
  18 #include <TFile.h>
  19 #endif
  20
  21 /** \class AliL3Merger
  22 <pre>
  23 //_____________________________________________________________
  24 // AliL3Merger
  25 //
  26 // The L3 merger base class
  27 //
  28 </pre>
  29 */
  30
  31 ClassImp(AliL3Merger)
  32
  33 AliL3Merger::AliL3Merger()
  34 {
  35   //Default constructor
  36   fInTrack=0;
  37   fOutTrack=0;
  38   fCurrentTracks=0;
  39   fNIn=0;
  40 }
  41
  42 AliL3Merger::~AliL3Merger()
  43 {
  44   //Destructor
  45   DeleteArray();
  46 }
  47
  48 void AliL3Merger::InitMerger(Int_t ntrackarrays,Char_t *tracktype)
  49 {
  50   //Used to setup all arrays
  51
  52   if(strcmp(tracktype,"AliL3Track")==0) fTrackType='t';
  53   else if(strcmp(tracktype,"AliL3ConfMapTrack")==0) fTrackType='c';
  54   else if(strcmp(tracktype,"AliL3HoughTrack")==0) fTrackType='h';
  55   else
  56     LOG(AliL3Log::kError,"AliL3Merger::AliL3Merger","Track types")
  57       <<"Unknown tracktype"<<ENDLOG;
  58   SetArray(ntrackarrays);
  59   fCurrentTracks=0;
  60
  61 }
  62
  63 void AliL3Merger::DeleteArray()
  64 {
  65   for(Int_t i=0; i<fNIn;i++)
  66     {
  67       if(!fInTrack[i]) continue;
  68       delete fInTrack[i];
  69       fInTrack[i]=0;
  70     }
  71   if(fInTrack)
  72     delete[] fInTrack;
  73   if(fOutTrack)
  74     delete fOutTrack;
  75   fInTrack=0;
  76   fOutTrack=0;
  77 }
  78
  79 void AliL3Merger::SetArray(Int_t nin)
  80 {
  81   DeleteArray();//Make sure arrays are cleaned
  82
  83   fNIn = nin;
  84   fInTrack = new AliL3TrackArray*[fNIn];
  85   for(Int_t i=0; i<fNIn;i++)
  86     {
  87       if(fTrackType=='h')
  88         fInTrack[i] = new AliL3TrackArray("AliL3HoughTrack");
  89       else
  90         fInTrack[i] = new AliL3TrackArray("AliL3Track");
  91
  92     }
  93   if(fTrackType=='h')
  94     fOutTrack= new AliL3TrackArray("AliL3HoughTrack");
  95   else
  96     fOutTrack= new AliL3TrackArray("AliL3Track");
  97 }
  98
  99 void AliL3Merger::Reset()
 100 {
 101   for(Int_t i=0; i<fNIn;i++)
 102     {
 103       fInTrack[i]->Reset();
 104     }
 105   fOutTrack->Reset();
 106 }
 107
 108 void AliL3Merger::FillTracks(Int_t ntracks, AliL3TrackSegmentData* tr)
 109 {
 110   //Read tracks from shared memory (or memory)
 111
 112   AliL3TrackArray *destination = GetInTracks(fCurrentTracks);
 113   if(Is2Global())
 114     destination->FillTracks(ntracks, tr, fSlice);
 115   else
 116     destination->FillTracks(ntracks, tr);
 117 }
 118
 119 void AliL3Merger::AddAllTracks()
 120 {
 121   for(Int_t i=0; i<GetNIn();i++)
 122     {
 123       AliL3TrackArray *in = GetInTracks(i);
 124       AliL3TrackArray *out = GetOutTracks();
 125       out->AddTracks(in);
 126     }
 127 }
 128
 129 void AliL3Merger::SortGlobalTracks(AliL3Track **tracks, Int_t ntrack)
 130 {
 131   AliL3Track **tmp = new AliL3Track*[ntrack];
 132   for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
 133   Int_t *t = new Int_t[ntrack];
 134   for(Int_t i=0;i<ntrack;i++) t[i]=-1;
 135
 136   for(Int_t j=0;j<ntrack;j++)
 137     {
 138       Double_t minr=300;
 139       Int_t    mini=0;
 140       for(Int_t i=0;i<ntrack;i++)
 141         {
 142           if(!tracks[i]) continue;
 143           Double_t rr=pow(tracks[i]->GetFirstPointX(),2)+pow(tracks[i]->GetFirstPointY(),2);
 144           Double_t r=sqrt(rr);
 145           if(r<minr){
 146             minr=r;
 147             mini=i;
 148           }
 149         }
 150       t[j]=mini;
 151       tracks[mini]=0;
 152     }
 153   for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
 154   delete[] t;
 155   delete[] tmp;
 156 }
 157
 158
 159 void AliL3Merger::SortTracks(AliL3Track **tracks, Int_t ntrack)
 160 {
 161   AliL3Track **tmp = new  AliL3Track*[ntrack];
 162   for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
 163   Int_t *t = new Int_t[ntrack];
 164   for(Int_t i=0;i<ntrack;i++) t[i]=-1;
 165
 166   for(Int_t j=0;j<ntrack;j++)
 167     {
 168       Double_t minx=300;
 169       Int_t    mini=0;
 170       for(Int_t i=0;i<ntrack;i++)
 171         {
 172           if(!tracks[i]) continue;
 173           if(tracks[i]->GetFirstPointX()<minx)
 174             {
 175               minx=tracks[i]->GetFirstPointX();
 176               mini=i;
 177             }
 178         }
 179       t[j]=mini;
 180       tracks[mini]=0;
 181     }
 182   for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
 183   delete[] t;
 184   delete[] tmp;
 185 }
 186
 187 void AliL3Merger::AddTrack(AliL3TrackArray *mergedtrack,AliL3Track *track)
 188 {
 189   AliL3Track *t[1];
 190   t[0] = track;
 191   MultiMerge(mergedtrack,t,1);
 192 }
 193
 194 AliL3Track * AliL3Merger::MergeTracks(AliL3TrackArray *mergedtrack,AliL3Track *t0,AliL3Track *t1)
 195 {
 196   AliL3Track *t[2];
 197   t[0] = t0;
 198   t[1] = t1;
 199   SortTracks(t,2);
 200   return MultiMerge(mergedtrack,t,2);
 201 }
 202
 203 AliL3Track * AliL3Merger::MultiMerge(AliL3TrackArray *mergedtracks,AliL3Track **tracks, Int_t ntrack)
 204 {
 205   // merge the tracks!!
 206
 207   //check npoints
 208   Int_t nps = 0;
 209   for(Int_t i=0;i<ntrack;i++)
 210     {
 211       nps+=tracks[i]->GetNHits();
 212     }
 213   if(nps>AliL3Transform::GetNRows())
 214     {
 215       LOG(AliL3Log::kWarning,"AliL3Merger::MultiMerge","Adding Points")
 216         <<AliL3Log::kDec<<"Too many Points: "<<nps<<ENDLOG;
 217       return 0;
 218     }
 219
 220   //create new track
 221   AliL3Track *newtrack = mergedtracks->NextTrack();
 222   //copy points
 223   UInt_t * nn = new UInt_t[AliL3Transform::GetNRows()];
 224   nps = 0;
 225
 226   //  for(Int_t i=0;i<ntrack;i++){
 227   for(Int_t i=ntrack-1;i>=0;i--)
 228     {
 229       memcpy(&nn[nps],tracks[i]->GetHitNumbers(),tracks[i]->GetNHits()*sizeof(UInt_t));
 230       nps+=tracks[i]->GetNHits();
 231     }
 232   AliL3Track *tpf=tracks[0];
 233   AliL3Track *tpl=tracks[ntrack-1];
 234   AliL3Track *best = tpf;
 235   if(tpf->GetNHits()<tpl->GetNHits() && Is2Global())
 236     best = tpl;//Best means = most points and therefore best fit (in global case)
 237
 238   newtrack->SetNHits(nps);
 239   newtrack->SetHits(nps,nn);
 240   newtrack->SetFirstPoint(tpf->GetFirstPointX(),tpf->GetFirstPointY(),tpf->GetFirstPointZ());
 241   newtrack->SetLastPoint(tpl->GetLastPointX(),tpl->GetLastPointY(),tpl->GetLastPointZ());
 242   newtrack->SetPt(best->GetPt());
 243   newtrack->SetPsi(best->GetPsi());
 244   newtrack->SetTgl(best->GetTgl());
 245   newtrack->SetCharge(tpf->GetCharge());
 246   delete [] nn;
 247   return newtrack;
 248 }
 249
 250 void* AliL3Merger::GetNtuple(char *varlist)
 251 {
 252 #ifdef use_root
 253   TNtuple* nt = new TNtuple("ntuple","ntuple",varlist);
 254   return (void*) nt;
 255 #else
 256   return 0;
 257 #endif
 258 }
 259
 260 void* AliL3Merger::GetNtuple()
 261 {
 262 #ifdef use_root
 263   TNtuple* nt = new TNtuple("ntuple","ntuple",
 264                             "dx:dy:dz:dk:dpsi:dtgl:dq:disx:disy:disz:dis:n0:n1:diff:drx:dry:drz");
 265   return (void*) nt;
 266 #else
 267   return 0;
 268 #endif
 269 }
 270
 271 Bool_t AliL3Merger::WriteNtuple(char *filename, void* nt)
 272 {
 273 #ifdef use_root
 274   TNtuple *ntuple=(TNtuple *) nt;
 275   TFile *f = new TFile(filename,"RECREATE");
 276   ntuple->Write();
 277   f->Close();
 278   delete ntuple;
 279   return kTRUE;
 280 #else
 281   return kFALSE;
 282 #endif
 283 }
 284
 285 void AliL3Merger::FillNtuple(void *nt,AliL3Track *innertrack,AliL3Track *outertrack)
 286 {
 287   Float_t data[17];
 288   if(outertrack->IsPoint()&&innertrack->IsPoint())
 289     {
 290       data[0] =Float_t(innertrack->GetPointX()-outertrack->GetPointX());
 291       data[1] =Float_t(innertrack->GetPointY()-outertrack->GetPointY());
 292       data[2] =Float_t(innertrack->GetPointZ()-outertrack->GetPointZ());
 293       data[3] =Float_t(innertrack->GetKappa()-outertrack->GetKappa());
 294       Double_t psi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
 295       if(psi>AliL3Transform::Pi()) psi-=AliL3Transform::TwoPi();
 296       else if(psi<-AliL3Transform::Pi()) psi+=AliL3Transform::TwoPi();
 297       data[4] =Float_t(psi);
 298       data[5] =Float_t(innertrack->GetTgl()-outertrack->GetTgl());
 299       data[6] =Float_t(innertrack->GetCharge()-outertrack->GetCharge());
 300       data[7] =Float_t(innertrack->GetLastPointX()-outertrack->GetFirstPointX());
 301       data[8] =Float_t(innertrack->GetLastPointY()-outertrack->GetFirstPointY());
 302       data[9] =Float_t(innertrack->GetLastPointZ()-outertrack->GetFirstPointZ());
 303       data[10] =sqrt(pow(data[7],2)+pow(data[8],2)+pow(data[9],2));
 304       data[11]= outertrack->GetNHits();
 305       data[12]= innertrack->GetNHits();
 306       data[13] = Float_t(TrackDiff(innertrack,outertrack));
 307       data[14]=0;
 308       data[15]=0;
 309       data[16]=0;
 310 #ifdef use_root
 311       TNtuple *ntuple = (TNtuple *) nt;
 312       ntuple->Fill(data);
 313 #endif
 314     }
 315 }
 316
 317 void AliL3Merger::FillNtuple(void *nt,Float_t *data)
 318 {
 319 #ifdef use_root
 320   TNtuple *ntuple = (TNtuple *) nt;
 321   ntuple->Fill(data);
 322 #endif
 323 }
 324
 325 Double_t AliL3Merger::GetAngle(Double_t a1,Double_t a2)
 326 {
 327   Double_t da = a1 - a2 + 4*AliL3Transform::Pi();
 328   da = fmod(da,AliL3Transform::TwoPi());
 329   if(da>AliL3Transform::Pi()) da = AliL3Transform::TwoPi()-da;
 330   return da;
 331 }
 332
 333 void AliL3Merger::SetParameter(Double_t maxy, Double_t maxz, Double_t maxkappa, Double_t maxpsi, Double_t maxtgl)
 334 {
 335   fMaxY = maxy;
 336   fMaxZ = maxz;
 337   fMaxKappa = maxkappa;
 338   fMaxPsi = maxpsi;
 339   fMaxTgl = maxtgl;
 340 }
 341
 342 Bool_t AliL3Merger::IsTrack(AliL3Track *innertrack,AliL3Track *outertrack)
 343 {
 344
 345   if(innertrack->GetCharge()!=outertrack->GetCharge()) return kFALSE;
 346   if( (!innertrack->IsPoint()) || (!outertrack->IsPoint()) )  return kFALSE;
 347   if(innertrack->GetNHits()+outertrack->GetNHits()>AliL3Transform::GetNRows()) return kFALSE;
 348
 349   if(fabs(innertrack->GetPointY()-outertrack->GetPointY()) >fMaxY) return kFALSE;
 350   if(fabs(innertrack->GetPointZ()-outertrack->GetPointZ()) >fMaxZ) return kFALSE;
 351   if(fabs(innertrack->GetKappa()-outertrack->GetKappa())   >fMaxKappa) return kFALSE;
 352   if(GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi()) >fMaxPsi) return kFALSE;
 353   if(fabs(innertrack->GetTgl()-outertrack->GetTgl()) >fMaxTgl) return kFALSE;
 354   //if no rejection up to this point: merge!!
 355   return kTRUE;
 356 }
 357
 358 Bool_t AliL3Merger::IsRTrack(AliL3Track *innertrack,AliL3Track *outertrack)
 359 {
 360   return IsTrack(innertrack,outertrack);
 361 }
 362
 363 Double_t AliL3Merger::TrackDiff(AliL3Track *innertrack,AliL3Track *outertrack)
 364 {
 365   Double_t diff =-1;
 366   Double_t x[4],y[4],z[4],dy[4],dz[4];
 367   AliL3Track *tracks[2];
 368
 369   tracks[0] = innertrack;
 370   tracks[1] = outertrack;
 371   SortGlobalTracks(tracks,2);
 372   innertrack = tracks[0];
 373   outertrack = tracks[1];
 374
 375   x[0] = innertrack->GetFirstPointX();
 376   x[1] = innertrack->GetLastPointX();
 377   x[2] = outertrack->GetFirstPointX();
 378   x[3] = outertrack->GetLastPointX();
 379
 380   y[0] = innertrack->GetFirstPointY();
 381   y[1] = innertrack->GetLastPointY();
 382   y[2] = outertrack->GetFirstPointY();
 383   y[3] = outertrack->GetLastPointY();
 384
 385   z[0] = innertrack->GetFirstPointZ();
 386   z[1] = innertrack->GetLastPointZ();
 387   z[2] = outertrack->GetFirstPointZ();
 388   z[3] = outertrack->GetLastPointZ();
 389
 390
 391   outertrack->CalculatePoint(x[0]);
 392   if(!outertrack->IsPoint()) return diff;
 393   dy[0] = fabs(y[0] - outertrack->GetPointY());
 394   dz[0] = fabs(z[0] - outertrack->GetPointZ());
 395
 396   outertrack->CalculatePoint(x[1]);
 397   if(!outertrack->IsPoint()) return diff;
 398   dy[1] = fabs(y[1] - outertrack->GetPointY());
 399   dz[1] = fabs(z[1] - outertrack->GetPointZ());
 400
 401   innertrack->CalculatePoint(x[2]);
 402   if(!innertrack->IsPoint()) return diff;
 403   dy[2] = fabs(y[2] - innertrack->GetPointY());
 404   dz[2] = fabs(z[2] - innertrack->GetPointZ());
 405
 406   innertrack->CalculatePoint(x[3]);
 407   if(!innertrack->IsPoint()) return diff;
 408   dy[3] = fabs(y[3] - innertrack->GetPointY());
 409   dz[3] = fabs(z[3] - innertrack->GetPointZ());
 410
 411   diff=0;
 412   for(Int_t i=0;i<4;i++)
 413     diff+=sqrt(dy[i]*dy[i]+dz[i]*dz[i]);
 414   return diff;
 415 }
 416
 417 void AliL3Merger::PrintDiff(AliL3Track *innertrack,AliL3Track *outertrack)
 418 {
 419   if(!innertrack->IsPoint()||!outertrack->IsPoint())
 420     {
 421       LOG(AliL3Log::kInformational,"AliL3Merger::PrintDiff","No Points")<<ENDLOG;
 422       //cerr<<"AliL3Merger::PrintDiff: No Points"<<endl;
 423       //cerr<<"---------------------------"<<endl;
 424       return;
 425     }
 426
 427   Double_t dx = innertrack->GetPointX()-outertrack->GetPointX();
 428   Double_t dy = innertrack->GetPointY()-outertrack->GetPointY();
 429   Double_t dz = innertrack->GetPointZ()-outertrack->GetPointZ();
 430   Double_t dk = innertrack->GetKappa()-outertrack->GetKappa();
 431   Double_t dpsi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
 432   if(dpsi>AliL3Transform::Pi()) dpsi-=AliL3Transform::TwoPi();
 433   else if(dpsi<-AliL3Transform::Pi())dpsi+=AliL3Transform::TwoPi();
 434   //Double_t dpsi = GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi());
 435   Double_t dtgl= innertrack->GetTgl()-outertrack->GetTgl();
 436   Double_t dq =innertrack->GetCharge()-outertrack->GetCharge();
 437
 438   LOG(AliL3Log::kInformational,"AliL3Merger::PrintDiff","Points") <<"dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<" dk: "<<dk<<" dpsi: "<<dpsi<<" dtgl: "<<dtgl<<" dq: "<<dq<<ENDLOG;
 439   //fprintf(stderr,"dx: %4f dy: %4f dz: %4f dk: %4f dpsi: %4f dtgl: %4f dq: %4f\n",dx,dy,dz,dk,dpsi,dtgl,dq);
 440   //cerr<<"---------------------------"<<endl;
 441
 442 }
 443
 444 void AliL3Merger::Print()
 445 {
 446   // print some infos
 447   for(Int_t i=0; i<fNIn; i++)
 448     {
 449       AliL3TrackArray *ttt= GetInTracks(i);
 450       for(Int_t j =0;j<ttt->GetNTracks();j++)
 451         {
 452           AliL3Track *track=ttt->GetCheckedTrack(j);
 453           if(!track) continue;
 454           track->CalculateHelix();
 455           //      Double_t angle = atan2(track->GetLastPointY(),track->GetLastPointX());
 456           //      if(angle<0) angle+=AliL3Transform::Pi();
 457           if(track->CalculatePoint(135))
 458             //      if(!track->CalculateEdgePoint(angle)) cerr<<"**************"<<endl;
 459             //      if(track->CalculatePoint(track->GetLastPointX()))
 460             //      if(track->CalculatePoint(0))
 461             {
 462               //      PrintTrack(track);
 463               //      track->CalculateReferencePoint(AliL3Transform::Pi()/180.);
 464               track->CalculateReferencePoint(0.001);
 465               Float_t dx=(float)track->GetPointX()-track->GetPointX();
 466               Float_t dy=(float)track->GetPointY()-track->GetPointY();
 467               Float_t dz=(float)track->GetPointZ()-track->GetPointZ();
 468               LOG(AliL3Log::kInformational,"AliL3Merger::Print","RefPoint") <<"npt: "<<track->GetNHits()<<" dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<ENDLOG;
 469
 470               //fprintf(stderr,"npt: %3d dx: %8.5f dy: %8.5f dz: %8.5f\n",track->GetNHits(),dx,dy,dz);
 471               //cerr<<"---------------------------"<<endl;
 472             }
 473         }
 474     }
 475 }
 476
 477 void AliL3Merger::PrintTrack(AliL3Track *track)
 478 {
 479   fprintf(stderr,"npt: %3d pt: %.2f psi: %.2f tgl: %5.2f q: %2d\n",
 480           track->GetNHits(),track->GetPt(),track->GetPsi(),
 481           track->GetTgl(),track->GetCharge());
 482   fprintf(stderr,
 483           "x1: %6.2f y1: %6.2f z1: %6.2f xl: %6.2f yl: %6.2f zl: %6.2f\n",
 484           track->GetFirstPointX(),track->GetFirstPointY(),track->GetFirstPointZ(),
 485           track->GetLastPointX(),track->GetLastPointY(),track->GetLastPointZ());
 486   if(track->IsPoint())
 487     {
 488       fprintf(stderr,
 489               "R: %.2f Xc: %.2f Yc: %.2f Xp: %.2f Yp: %.2f Zp: %.2f Psip: %.2f\n",
 490               track->GetRadius(),track->GetCenterX(),track->GetCenterY(),
 491               track->GetPointX(),track->GetPointY(),track->GetPointZ(),
 492               track->GetPointPsi());
 493     }
 494 }