MONITOR/AliMonitorHLTHough.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
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  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16
  17 ///////////////////////////////////////////////////////////////////////////////
  18 //                                                                           //
  19 // This class creates and fills monitor histograms for HLT Hough transform   //
  20 //                                                                           //
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23
  24 #include "AliMonitorHLTHough.h"
  25 #include "AliMonitorHisto.h"
  26 #include "AliMonitorTrend.h"
  27 #include "AliTPCParam.h"
  28 #include <TFolder.h>
  29 #include <stdlib.h>
  30 #include <AliL3MemHandler.h>
  31 #include <AliL3TrackArray.h>
  32 #include <AliL3SpacePointData.h>
  33 #include <AliL3HoughTrack.h>
  34 #include <AliL3Transform.h>
  35
  36 //_____________________________________________________________________________
  37 AliMonitorHLTHough::AliMonitorHLTHough(AliTPCParam* param)
  38 {
  39 // create a HLT monitor object with the given parameters
  40
  41   fParam = param;
  42 }
  43
  44 //_____________________________________________________________________________
  45 AliMonitorHLTHough::AliMonitorHLTHough(const AliMonitorHLTHough& monitor) :
  46   AliMonitor(monitor)
  47 {
  48   Fatal("AliMonitorHLTHough", "copy constructor not implemented");
  49 }
  50
  51 //_____________________________________________________________________________
  52 AliMonitorHLTHough& AliMonitorHLTHough::operator = (const AliMonitorHLTHough&
  53                                                     /*monitor*/)
  54 {
  55   Fatal("operator =", "assignment operator not implemented");
  56   return *this;
  57 }
  58
  59
  60 //_____________________________________________________________________________
  61 void AliMonitorHLTHough::CreateHistos(TFolder* folder)
  62 {
  63 // create the HLT Hough transform monitor histograms
  64
  65   fFolder = folder->AddFolder("HLTHOUGH", "HLTHOUGH");
  66
  67   fClustersCharge = CreateHisto1("ClustersCharge",
  68                                  "charge distribution of clusters",
  69                                  100, 0, 1000, "charge", "#Delta N/N",
  70                                  AliMonitorHisto::kNormEvents);
  71
  72   Int_t nRows = fParam->GetNRowLow() + fParam->GetNRowUp();
  73   fNClustersVsRow = CreateHisto1("NClustersVsRow",
  74                                  "mean number of clusters per pad row",
  75                                  nRows, -0.5, nRows-0.5,
  76                                  "pad row", "<N_{clusters}>",
  77                                  AliMonitorHisto::kNormEvents);
  78
  79   Int_t nSector = fParam->GetNInnerSector();
  80   fNClustersVsSector = CreateHisto1("NClustersVsSector",
  81                                     "mean number of clusters per sector",
  82                                     nSector, -0.5, nSector-0.5,
  83                                     "sector", "<N_{clusters}>",
  84                                     AliMonitorHisto::kNormEvents);
  85
  86   fNTracks = CreateTrend("NTracks", "number of tracks per event",
  87                          "N_{tracks}");
  88
  89   fTrackPt = CreateHisto1("TrackPt", "pt distribution of tracks",
  90                           90, 0, 3, "p_{t} [GeV/c]", "#Delta N/N",
  91                           AliMonitorHisto::kNormNone);
  92
  93   fTrackEta = CreateHisto1("TrackEta", "eta distribution of tracks",
  94                            100, -2, 2, "#eta", "#Delta N/N",
  95                            AliMonitorHisto::kNormEntries);
  96
  97   fTrackPhi = CreateHisto1("TrackPhi", "phi distribution of tracks",
  98                            120, 0, 360, "#phi [#circ]", "#Delta N/N",
  99                            AliMonitorHisto::kNormEntries);
 100
 101   fTrackNHits = CreateHisto1("TrackNHits", "Number of hits per track",
 102                            200, 0, 200, "N_{hits}", "#Delta N/N",
 103                            AliMonitorHisto::kNormNone);
 104
 105   fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks",
 106                                100, 0, 3, 100, 0, 1000,
 107                                "p [GeV/c]", "dE/dx", "#Delta N/N",
 108                                AliMonitorHisto::kNormEntries);
 109
 110   fTrackDEdx = CreateHisto1("TrackDEdx", "dE/dx for tracks with 0.4<p<1.0 GeV/c",
 111                                50, 0, 300,
 112                                "dE/dx", "#Delta N/N",
 113                                AliMonitorHisto::kNormEntries);
 114
 115   fTrackEtaVsPhi = CreateHisto2("TrackEtaVsPhi", "#phi vs #eta",
 116                                20, -1, 1, 25, 0, 360,
 117                                "#eta", "#phi", "#Delta N/N",
 118                                AliMonitorHisto::kNormNone);
 119
 120   fPtEtaVsPhi = CreateHisto2("PtEtaVsPhi", "#phi vs #eta",
 121                                20, -1, 1, 25, 0, 360,
 122                                "#eta", "#phi", "#Delta N/N",
 123                                AliMonitorHisto::kNormNone);
 124
 125 }
 126
 127
 128 //_____________________________________________________________________________
 129 void AliMonitorHLTHough::FillHistos(AliRunLoader* /*runLoader*/,
 130                                     AliRawReader* /*rawReader*/,
 131                                     AliESD* /*esd*/)
 132 {
 133 // fill the HLT Hough transform monitor histograms
 134
 135   AliL3MemHandler clusterHandler[36][6];
 136   AliL3SpacePointData *clusters[36][6];
 137   for (Int_t iSector = 0; iSector < fParam->GetNInnerSector(); iSector++) {
 138     for (Int_t iPatch = 0; iPatch < 6; iPatch++) {
 139       char fileName[256];
 140       sprintf(fileName, "hlt/fitter/points_%d_%d.raw", iSector,iPatch);
 141       if (!clusterHandler[iSector][iPatch].SetBinaryInput(fileName)) {
 142         Warning("FillHistos", "could not open file %s", fileName);
 143         continue;
 144       }
 145       clusters[iSector][iPatch] = (AliL3SpacePointData*) clusterHandler[iSector][iPatch].Allocate();
 146       UInt_t nClusters = 0;
 147       clusterHandler[iSector][iPatch].Binary2Memory(nClusters, clusters[iSector][iPatch]);
 148
 149       for (UInt_t iCluster = 0; iCluster < nClusters; iCluster++) {
 150         AliL3SpacePointData& cluster = clusters[iSector][iPatch][iCluster];
 151         fClustersCharge->Fill(cluster.fCharge);
 152         fNClustersVsRow->Fill(cluster.fPadRow);
 153         fNClustersVsSector->Fill(iSector);
 154       }
 155
 156       clusterHandler[iSector][iPatch].CloseBinaryInput();
 157     }
 158   }
 159
 160   fNClustersVsSector->ScaleErrorBy(10.);
 161
 162
 163   AliL3MemHandler memHandler;
 164   Int_t nHoughTracks = 0;
 165
 166   char fileName[256];
 167   sprintf(fileName, "hlt/fitter/tracks.raw");
 168   if (!memHandler.SetBinaryInput(fileName)) {
 169     Warning("FillHistos", "could not open file hlt/fitter/tracks.raw");
 170     return;
 171   }
 172   AliL3TrackArray* tracks = new AliL3TrackArray;
 173   memHandler.Binary2TrackArray(tracks);
 174
 175   nHoughTracks += tracks->GetNTracks();
 176   for (Int_t iTrack = 0; iTrack < tracks->GetNTracks(); iTrack++) {
 177     AliL3HoughTrack *track = (AliL3HoughTrack*)tracks->GetCheckedTrack(iTrack);
 178     if(!track) continue;
 179
 180     track->CalculateHelix();
 181     //  track->Rotate(iSector);
 182
 183     fTrackPt->Fill(track->GetPt());
 184     fTrackEta->Fill(track->GetPseudoRapidity());
 185     fTrackPhi->Fill(track->GetPsi() * TMath::RadToDeg());
 186     if(track->GetPt()>3.) {
 187       fTrackEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg());
 188       fPtEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg(),track->GetPt());
 189     }
 190     fTrackNHits->Fill(track->GetNHits());
 191
 192     // Track dEdx
 193     Int_t nc=track->GetNHits();
 194     UInt_t *hits = track->GetHitNumbers();
 195     Float_t sampleDEdx[159];
 196     for (Int_t iHit = 0; iHit < nc; iHit++) {
 197       UInt_t hitID = hits[iHit];
 198       Int_t iSector = (hitID>>25) & 0x7f;
 199       Int_t iPatch = (hitID>>22) & 0x7;
 200       UInt_t position = hitID&0x3fffff;
 201       UChar_t padrow = clusters[iSector][iPatch][position].fPadRow;
 202       Float_t pWidth = AliL3Transform::GetPadPitchWidthLow();
 203       if (padrow>63)
 204         pWidth = AliL3Transform::GetPadPitchWidthUp();
 205       Float_t corr=1.; if (padrow>63) corr=0.67;
 206       sampleDEdx[iHit] = clusters[iSector][iPatch][position].fCharge/pWidth*corr;
 207       Double_t crossingangle = track->GetCrossingAngle(padrow,iSector);
 208       Double_t s = sin(crossingangle);
 209       Double_t t = track->GetTgl();
 210       sampleDEdx[iHit] *= TMath::Sqrt((1-s*s)/(1+t*t));
 211     }
 212
 213     /* Cook dEdx */
 214     Int_t i;
 215     Int_t swap;//stupid sorting
 216     do {
 217       swap=0;
 218       for (i=0; i<nc-1; i++) {
 219         if (sampleDEdx[i]<=sampleDEdx[i+1]) continue;
 220         Float_t tmp=sampleDEdx[i];
 221         sampleDEdx[i]=sampleDEdx[i+1]; sampleDEdx[i+1]=tmp;
 222         swap++;
 223       }
 224     } while (swap);
 225
 226     Double_t low=0.05; Double_t up=0.7;
 227     Int_t nl=Int_t(low*nc), nu=Int_t(up*nc);
 228     Float_t trackDEdx=0;
 229     for (i=nl; i<=nu; i++) trackDEdx += sampleDEdx[i];
 230     trackDEdx /= (nu-nl+1);
 231
 232     fTrackDEdxVsP->Fill(track->GetP(),trackDEdx);
 233     if(track->GetP()>0.4 && track->GetP()<1.0)
 234       fTrackDEdx->Fill(trackDEdx);
 235   }
 236   fNTracks->Fill(nHoughTracks);
 237
 238   delete tracks;
 239   memHandler.CloseBinaryInput();
 240 }