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