HLT/src/AliHLTReconstructor.cxx

   1 // $Id$
   2
   3 ///////////////////////////////////////////////////////////////////////////////
   4 //                                                                           //
   5 // class for HLT reconstruction                                              //
   6 // <Cvetan.Cheshkov@cern.ch>                                                 //
   7 ///////////////////////////////////////////////////////////////////////////////
   8
   9 // very ugly but it has to work fast
  10 #ifdef use_reconstruction
  11
  12 #include <Riostream.h>
  13 #include <TSystem.h>
  14 #include <TArrayF.h>
  15
  16 #include "AliL3StandardIncludes.h"
  17 #include "AliL3Logging.h"
  18 #include "AliLevel3.h"
  19 #include "AliL3Evaluate.h"
  20 #include "AliHLTReconstructor.h"
  21 #include "AliL3Transform.h"
  22 #include "AliL3Hough.h"
  23 #include "AliL3FileHandler.h"
  24 #include "AliL3Track.h"
  25 #include "AliL3HoughTrack.h"
  26 #include "AliL3TrackArray.h"
  27 #include "AliRunLoader.h"
  28 #include "AliHeader.h"
  29 #include "AliGenEventHeader.h"
  30 #include "AliESD.h"
  31 #include "AliESDHLTtrack.h"
  32
  33 #if __GNUC__== 3
  34 using namespace std;
  35 #endif
  36
  37
  38 ClassImp(AliHLTReconstructor)
  39
  40 void AliHLTReconstructor::Reconstruct(AliRunLoader* runLoader) const
  41 {
  42   if(!runLoader) {
  43     LOG(AliL3Log::kFatal,"AliHLTReconstructor::Reconstruct","RunLoader")
  44       <<" Missing RunLoader! 0x0"<<ENDLOG;
  45   }
  46   gSystem->Exec("rm -rf hlt");
  47   gSystem->MakeDirectory("hlt");
  48   gSystem->Exec("rm -rf hough");
  49   gSystem->MakeDirectory("hough");
  50   gSystem->Exec("rm -f alirunfile.root");
  51   gSystem->Exec("ln -s galice.root alirunfile.root");
  52
  53   Bool_t isinit=AliL3Transform::Init("./",kTRUE);
  54   if(!isinit){
  55     cerr << "Could not create transform settings, please check log for error messages!" << endl;
  56     return;
  57   }
  58
  59   Int_t nEvents = runLoader->GetNumberOfEvents();
  60
  61   for(Int_t iEvent = 0; iEvent < nEvents; iEvent++) {
  62     runLoader->GetEvent(iEvent);
  63
  64     ReconstructWithConformalMapping(runLoader,iEvent);
  65     ReconstructWithHoughTransform(runLoader,iEvent);
  66   }
  67 }
  68
  69 void AliHLTReconstructor::ReconstructWithConformalMapping(AliRunLoader* runLoader,Int_t iEvent) const
  70 {
  71   AliLevel3 *fHLT = new AliLevel3(runLoader);
  72   fHLT->Init("./", AliLevel3::kRunLoader, 1);
  73
  74   Int_t phiSegments = 50;
  75   Int_t etaSegments = 100;
  76   Int_t trackletlength = 3;
  77   Int_t tracklength = 10;
  78   Int_t rowscopetracklet = 2;
  79   Int_t rowscopetrack = 10;
  80   Double_t minPtFit = 0;
  81   Double_t maxangle = 0.1745;
  82   Double_t goodDist = 5;
  83   Double_t maxphi = 0.1;
  84   Double_t maxeta = 0.1;
  85   Double_t hitChi2Cut = 20;
  86   Double_t goodHitChi2 = 5;
  87   Double_t trackChi2Cut = 10;
  88   Double_t xyerror = -1;
  89   Double_t zerror =  -1;
  90
  91   fHLT->SetClusterFinderParam(xyerror,zerror,kTRUE);
  92   fHLT->SetTrackerParam(phiSegments, etaSegments,
  93                         trackletlength, tracklength,
  94                         rowscopetracklet, rowscopetrack,
  95                         minPtFit, maxangle, goodDist, hitChi2Cut,
  96                         goodHitChi2, trackChi2Cut, 50, maxphi, maxeta, kTRUE);
  97   fHLT->SetMergerParameters(2,3,0.003,0.1,0.05);
  98   fHLT->DoMc();
  99   fHLT->WriteFiles("./hlt/");
 100
 101   fHLT->ProcessEvent(0, 35, iEvent);
 102
 103   char filename[256];
 104   sprintf(filename, "confmap_%d",iEvent);
 105   fHLT->DoBench(filename);
 106
 107   delete fHLT;
 108
 109 }
 110
 111 void AliHLTReconstructor::ReconstructWithHoughTransform(AliRunLoader* runLoader,Int_t iEvent) const
 112 {
 113   Float_t ptmin = 0.1*AliL3Transform::GetSolenoidField();
 114
 115   Float_t zvertex = 0;
 116   TArrayF mcVertex(3);
 117   runLoader->GetHeader()->GenEventHeader()->PrimaryVertex(mcVertex);
 118   zvertex = mcVertex[2];
 119
 120   cout<<" Hough Tranform will run with ptmin="<<ptmin<<" and zvertex="<<zvertex<<endl;
 121
 122   AliL3Hough *hough = new AliL3Hough();
 123
 124   hough->SetThreshold(4);
 125   hough->SetTransformerParams(76,140,ptmin,-1);
 126   hough->SetPeakThreshold(70,-1);
 127   hough->SetRunLoader(runLoader);
 128   hough->Init("./", kFALSE, 100, kFALSE,4,0,0,zvertex);
 129   hough->SetAddHistograms();
 130
 131   for(int slice=0; slice<=35; slice++)
 132     {
 133       //     cout<<"Processing slice "<<slice<<endl;
 134       hough->ReadData(slice,iEvent);
 135       hough->Transform();
 136       hough->AddAllHistogramsRows();
 137       hough->FindTrackCandidatesRow();
 138       //     hough->WriteTracks(slice,"./hough");
 139       hough->AddTracks();
 140     }
 141   hough->WriteTracks("./hough");
 142
 143   char filename[256];
 144   sprintf(filename, "hough_%d",iEvent);
 145   hough->DoBench(filename);
 146
 147   delete hough;
 148 }
 149
 150 void AliHLTReconstructor::FillESD(AliRunLoader* runLoader,
 151                                   AliESD* esd) const
 152 {
 153   Int_t iEvent = runLoader->GetEventNumber();
 154
 155   FillESDforConformalMapping(esd,iEvent);
 156   FillESDforHoughTransform(esd,iEvent);
 157 }
 158
 159 void AliHLTReconstructor::FillESDforConformalMapping(AliESD* esd,Int_t iEvent) const
 160 {
 161   //Assign MC labels for found tracks
 162   int slicerange[2]={0,35};
 163   int good = (int)(0.4*AliL3Transform::GetNRows());
 164   int nclusters = (int)(0.4*AliL3Transform::GetNRows());
 165   float ptmin = 0.;
 166   float ptmax = 0.;
 167   float maxfalseratio = 0.1;
 168
 169   AliL3Evaluate *fHLTEval = new AliL3Evaluate("./hlt",nclusters,good,ptmin,ptmax,slicerange);
 170   fHLTEval->SetMaxFalseClusters(maxfalseratio);
 171
 172   fHLTEval->LoadData(iEvent,kTRUE);
 173   fHLTEval->AssignPIDs();
 174   fHLTEval->AssignIDs();
 175   AliL3TrackArray *fTracks = fHLTEval->GetTracks();
 176   for(Int_t i=0; i<fTracks->GetNTracks(); i++)
 177     {
 178       AliL3Track *tpt = (AliL3Track *)fTracks->GetCheckedTrack(i);
 179       if(!tpt) continue;
 180
 181       AliESDHLTtrack *esdtrack = new AliESDHLTtrack() ;
 182
 183       esdtrack->SetRowRange(tpt->GetFirstRow(),tpt->GetLastRow());
 184       esdtrack->SetNHits(tpt->GetNHits());
 185       esdtrack->SetFirstPoint(tpt->GetFirstPointX(),tpt->GetFirstPointY(),tpt->GetFirstPointZ());
 186       esdtrack->SetLastPoint(tpt->GetLastPointX(),tpt->GetLastPointY(),tpt->GetLastPointZ());
 187       esdtrack->SetPt(tpt->GetPt());
 188       esdtrack->SetPsi(tpt->GetPsi());
 189       esdtrack->SetTgl(tpt->GetTgl());
 190       esdtrack->SetCharge(tpt->GetCharge());
 191       esdtrack->SetMCid(tpt->GetMCid());
 192       esdtrack->SetSector(tpt->GetSector());
 193       esdtrack->SetPID(tpt->GetPID());
 194       esdtrack->ComesFromMainVertex(tpt->ComesFromMainVertex());
 195
 196       esd->AddHLTConfMapTrack(esdtrack);
 197       delete esdtrack;
 198     }
 199
 200   delete fHLTEval;
 201 }
 202
 203 void AliHLTReconstructor::FillESDforHoughTransform(AliESD* esd,Int_t iEvent) const
 204 {
 205   char filename[256];
 206   sprintf(filename,"./hough/tracks_%d.raw",iEvent);
 207
 208   AliL3FileHandler *tfile = new AliL3FileHandler();
 209   if(!tfile->SetBinaryInput(filename)){
 210     Error("FillESD","Inputfile ",filename," does not exist");
 211     return;
 212   }
 213
 214   AliL3TrackArray *fTracks = new AliL3TrackArray("AliL3HoughTrack");
 215   tfile->Binary2TrackArray(fTracks);
 216   tfile->CloseBinaryInput();
 217   delete tfile;
 218
 219   for(Int_t i=0; i<fTracks->GetNTracks(); i++)
 220     {
 221       AliL3HoughTrack *tpt = (AliL3HoughTrack *)fTracks->GetCheckedTrack(i);
 222       if(!tpt) continue;
 223
 224       AliESDHLTtrack *esdtrack = new AliESDHLTtrack() ;
 225
 226       esdtrack->SetRowRange(tpt->GetFirstRow(),tpt->GetLastRow());
 227       esdtrack->SetNHits(tpt->GetNHits());
 228       esdtrack->SetFirstPoint(tpt->GetFirstPointX(),tpt->GetFirstPointY(),tpt->GetFirstPointZ());
 229       esdtrack->SetLastPoint(tpt->GetLastPointX(),tpt->GetLastPointY(),tpt->GetLastPointZ());
 230       esdtrack->SetPt(tpt->GetPt());
 231       esdtrack->SetPsi(tpt->GetPsi());
 232       esdtrack->SetTgl(tpt->GetTgl());
 233       esdtrack->SetCharge(tpt->GetCharge());
 234       esdtrack->SetMCid(tpt->GetMCid());
 235       esdtrack->SetWeight(tpt->GetWeight());
 236       esdtrack->SetSector(tpt->GetSector());
 237       esdtrack->SetBinXY(tpt->GetBinX(),tpt->GetBinY(),tpt->GetSizeX(),tpt->GetSizeY());
 238       esdtrack->SetPID(tpt->GetPID());
 239       esdtrack->ComesFromMainVertex(tpt->ComesFromMainVertex());
 240
 241       esd->AddHLTHoughTrack(esdtrack);
 242       delete esdtrack;
 243     }
 244
 245   delete fTracks;
 246 }
 247
 248 #endif