TRD/qaRec/AliTRDtrackingEfficiencyCombined.cxx

   1 /**************************************************************************
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   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
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  15
  16 /* $Id: AliTRDtrackingEfficiencyCombined.cxx 27496 2008-07-22 08:35:45Z cblume $ */
  17
  18 ////////////////////////////////////////////////////////////////////////////
  19 //                                                                        //
  20 //  Reconstruction QA                                                     //
  21 //                                                                        //
  22 //  Authors:                                                              //
  23 //    Markus Fasel <M.Fasel@gsi.de>                                       //
  24 //                                                                        //
  25 ////////////////////////////////////////////////////////////////////////////
  26
  27 #include <TObjArray.h>
  28 #include <TProfile.h>
  29 #include <TMath.h>
  30 #include <TCanvas.h>
  31 #include "TTreeStream.h"
  32
  33 #include "AliMagFMaps.h"
  34 #include "AliTracker.h"
  35 #include "AliTrackReference.h"
  36 #include "AliAnalysisManager.h"
  37
  38 #include "AliTRDseedV1.h"
  39 #include "AliTRDtrackV1.h"
  40 #include "AliTRDtrackInfo/AliTRDtrackInfo.h"
  41 #include "AliTRDtrackingEfficiencyCombined.h"
  42
  43 ClassImp(AliTRDtrackingEfficiencyCombined)
  44
  45 //_____________________________________________________________________________
  46 AliTRDtrackingEfficiencyCombined::AliTRDtrackingEfficiencyCombined()
  47   :AliTRDrecoTask("TrackingEffMC", "Combined Tracking Efficiency")
  48 {
  49   //
  50   // Default constructor
  51   //
  52 }
  53
  54
  55 //_____________________________________________________________________________
  56 void AliTRDtrackingEfficiencyCombined::CreateOutputObjects(){
  57   //
  58   // Create output objects
  59   //
  60
  61   OpenFile(0, "RECREATE");
  62
  63   const Int_t nbins = 11;
  64   Float_t xbins[nbins+1] = {.5, .7, .9, 1.3, 1.7, 2.4, 3.5, 4.5, 5.5, 7., 9., 11.};
  65
  66   fContainer = new TObjArray();
  67   fContainer->Add(new TProfile("trEffComb", "Combined Tracking Efficiency", nbins, xbins));
  68   fContainer->Add(new TProfile("trContComb", "Combined Tracking Contamination", nbins, xbins));
  69 }
  70
  71 //_____________________________________________________________________________
  72 void AliTRDtrackingEfficiencyCombined::Exec(Option_t *){
  73   //
  74   // Do it
  75   //
  76
  77         const Float_t kAlpha = 0.349065850;
  78         Int_t naccepted = 0, nrejected = 0, ndoublecounted = 0;
  79         Int_t labelsacc[10000];
  80         Int_t labelsrej[10000];
  81         Float_t momacc[10000];
  82         Float_t momrej[10000];
  83         TProfile *efficiency = (TProfile *)fContainer->At(0);
  84         TProfile *contamination = (TProfile *)fContainer->At(1);
  85
  86         Int_t nTrackInfos = fTracks->GetEntriesFast();
  87         Double_t mom = 0;
  88         AliTRDtrackV1 *TRDtrack = 0x0;
  89         AliTRDtrackInfo *trkInf = 0x0;
  90         AliTrackReference *trackRef = 0x0;
  91         for(Int_t itinf = 0; itinf < nTrackInfos; itinf++){
  92                 mom = 0.;
  93                 trkInf = dynamic_cast<AliTRDtrackInfo *>(fTracks->UncheckedAt(itinf));
  94                 if(!trkInf) continue;
  95                 if((TRDtrack = trkInf->GetTRDtrack()) || trkInf->GetNumberOfClustersRefit()){
  96                         // check if allready found by the tracker
  97                         Bool_t found = kFALSE;
  98                         for(Int_t il = 0; il < naccepted; il++){
  99                                 if(labelsacc[il] == trkInf->GetLabel()) found = kTRUE;
 100                         }
 101                         if(found){
 102                                 mom =  trackRef ? trackRef->P() : TRDtrack->P();
 103                                 contamination->Fill(mom, 1);
 104                                 ndoublecounted++;
 105                                 continue;
 106                         }
 107                         if(trkInf->GetNTrackRefs()){
 108                                 Int_t iref = 0;
 109                                 while(!(trackRef = trkInf->GetTrackRef(iref++)));
 110                         }
 111                         if(!trackRef) printf("Error: Track Reference missing for Track %d\n", trkInf->GetLabel());
 112                         mom =  trackRef ? trackRef->P() : trkInf->GetOuterParam()->P();
 113
 114 //           Accept track
 115                         if(fDebugLevel > 3)printf("Accept track\n");
 116                         momacc[naccepted] = mom;
 117                         labelsacc[naccepted++] = trkInf->GetLabel();
 118 /*                      printf("Reconstructed: event %3d Tracks: MC[%d] ESD[%d] NRefs[%d]\n", (Int_t)AliAnalysisManager::GetAnalysisManager()->GetCurrentEntry(), trkInf->GetLabel(),  trkInf->GetTrackId(), trkInf->GetNTrackRefs());*/
 119     } else{
 120                         if(fDebugLevel>10) printf("Analysing Track References\n");
 121       // Check if track is findable
 122                         Float_t xmin = 10000.0, xmax = 0.0;
 123                         Float_t ymin = 0.0, ymax = 0.0;
 124                         Float_t zmin = 0.0, zmax = 0.0;
 125                         Float_t lastx = 0.0, x = 0.0;
 126                         Int_t nLayers = 0;
 127 /*                      trackRef = trkInf->GetTrackRef(0);*/
 128 /*                      xmin = trackRef->LocalX(); xmax = trackRef->LocalX();
 129       ymin = trackRef->LocalY(); ymax = trackRef->LocalY();
 130       mom = trackRef->P();*/
 131       Int_t *sector = new Int_t[trkInf->GetNTrackRefs()];
 132       for(Int_t itr = 0; itr < trkInf->GetNTrackRefs(); itr++){
 133         trackRef = trkInf->GetTrackRef(itr);
 134                                 if(fDebugLevel>10) printf("%d. x[%f], y[%f], z[%f]\n", itr, trackRef->LocalX(), trackRef->LocalY(), trackRef->Z());
 135                                 x = trackRef->LocalX();
 136                                 if(x < 250. || x > 370.) continue;      // Be Sure that we are inside TRD
 137         sector[itr] = Int_t(trackRef->Alpha()/kAlpha);
 138         if(x < xmin){
 139           xmin = trackRef->LocalX();
 140           ymin = trackRef->LocalY();
 141           zmin = trackRef->Z();
 142           mom = trackRef->P();
 143         }
 144         if(x > xmax){
 145           xmax = trackRef->LocalX();
 146           ymax = trackRef->LocalY();
 147           zmax = trackRef->Z();
 148         }
 149                                 if(itr > 0){
 150                                         Float_t dist = TMath::Abs(x - lastx);
 151                                         if(fDebugLevel>10) printf("x = %f, lastx = %f, dist = %f\n", x, lastx, dist);
 152                                         if(TMath::Abs(dist - 3.7) < 0.1) nLayers++;     // ref(i+1) has to be larger than ref(i)
 153                                 }
 154                                 lastx = x;
 155       }
 156       // Apply cuts
 157       Bool_t findable = kTRUE;
 158       if(trkInf->GetNTrackRefs() > 2 && xmax > xmin){
 159         if(mom < 0.55) findable = kFALSE;                                                                       // momentum cut at 0.6
 160                                 Double_t yangle = (ymax -ymin)/(xmax - xmin);
 161                                 Double_t zangle = (zmax -zmin)/(xmax - xmin);
 162                                 if(fDebugLevel>10) printf("track: y-Angle = %f, z-Angle = %f\n", yangle, zangle);
 163                                 if(fDebugLevel>10) printf("nLayers = %d\n", nLayers);
 164                                 if(TMath::ATan(TMath::Abs(yangle)) > 45.) findable = kFALSE;
 165                                 if(TMath::ATan(TMath::Abs(zangle)) > 45.) findable = kFALSE;
 166                                 if(nLayers < 4) findable = kFALSE;
 167         if(!trkInf->IsPrimary()) findable = kFALSE;
 168         Bool_t samesec = kTRUE;
 169         for(Int_t iref = 1; iref < trkInf->GetNTrackRefs(); iref++)
 170           if(sector[iref] != sector[0]) samesec = kFALSE;
 171         if(!samesec) findable = kFALSE;         // Discard all tracks which are passing more than one sector
 172         if(fDebugLevel){
 173           Double_t trackAngle = TMath::ATan(yangle);
 174           Bool_t primary = trkInf->IsPrimary();
 175           (*fDebugStream) << "NotFoundTrack"
 176             << "Momentum="      << mom
 177             << "trackAngle="<< trackAngle
 178             << "NLayers="       << nLayers
 179             << "Primary="       << primary
 180             << "\n";
 181         }
 182       }
 183       else
 184         findable = kFALSE;
 185       delete[] sector;
 186       if(findable){
 187                                 momrej[nrejected] = mom;
 188                                 labelsrej[nrejected++] = trkInf->GetLabel();
 189 /*                        printf("Not Reconstructed: event %3d Tracks: MC[%d] ESD[%d] NRefs[%d]\n", (Int_t)AliAnalysisManager::GetAnalysisManager()->GetCurrentEntry(), trkInf->GetLabel(),  trkInf->GetTrackId(), trkInf->GetNTrackRefs());*/
 190       }
 191     }
 192   }
 193         for(Int_t itk = 0; itk < naccepted; itk++){
 194                 if(fDebugLevel > 2)printf("Accepted MC track: %d\n", labelsacc[itk]);
 195                 efficiency->Fill(momacc[itk], 1);
 196                 contamination->Fill(momacc[itk], 0);
 197         }
 198         Int_t nall = naccepted;
 199         for(Int_t imis = 0; imis < nrejected; imis++){
 200                 Bool_t found = kFALSE;
 201                 for(Int_t ifound = 0; ifound < naccepted; ifound++){
 202                         if(labelsacc[ifound] == labelsrej[imis]){
 203                                 found = kTRUE;
 204                                 break;
 205                         }
 206                 }
 207                 if(!found){
 208                         efficiency->Fill(momrej[imis], 0);
 209                         contamination->Fill(momrej[imis], 0);
 210                         if(fDebugLevel > 2)printf("Rejected MC track: %d\n", labelsrej[imis]);
 211                         nall++;
 212                 }
 213         }
 214   //if(fDebugLevel>=1)
 215   printf("%3d Tracks: MC[%3d] TRD[%3d | %5.2f%%] \n", (Int_t)AliAnalysisManager::GetAnalysisManager()->GetCurrentEntry(), nall, naccepted, 1.E2*Float_t(naccepted)/Float_t(nall));
 216   printf("%3d Tracks: ALL[%3d] DoubleCounted[%3d | %5.2f%%] \n", (Int_t)AliAnalysisManager::GetAnalysisManager()->GetCurrentEntry(), nall + ndoublecounted, ndoublecounted, 1.E2*Float_t(ndoublecounted)/Float_t(nall + ndoublecounted));
 217
 218   PostData(0, fContainer);
 219 }
 220
 221 //_____________________________________________________________________________
 222 void AliTRDtrackingEfficiencyCombined::Terminate(Option_t *)
 223 {
 224   //
 225   // Termination
 226   //
 227
 228   if(fDebugStream){
 229     delete fDebugStream;
 230     fDebugStream = 0x0;
 231     fDebugLevel = 0;
 232   }
 233
 234   fContainer = dynamic_cast<TObjArray*>(GetOutputData(0));
 235   if (!fContainer) {
 236     Printf("ERROR: list not available");
 237     return;
 238   }
 239
 240   /*TProfile *hEff = (TProfile*)fContainer->At(0);
 241   TProfile *hEffCont = (TProfile*)fContainer->At(1);
 242   Printf("Eff[%p] EffCont[%p]\n", (void*)hEff, (void*)hEffCont);
 243
 244
 245   TCanvas *c2 = new TCanvas("c2","",800,400);
 246   c2->Divide(2,1);
 247
 248   c2->cd(1);
 249   hEff->DrawCopy("e1");
 250   c2->cd(2);
 251   hEffCont->DrawCopy("e1");*/
 252 }