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  *                                                                        *
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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 #ifdef ALI_HLT
  30 #include <stdlib.h>
  31 #include <AliL3MemHandler.h>
  32 #include <AliL3TrackArray.h>
  33 #include <AliL3SpacePointData.h>
  34 #include <AliL3HoughTrack.h>
  35 #include <AliL3Transform.h>
  36 #endif
  37
  38 //_____________________________________________________________________________
  39 AliMonitorHLTHough::AliMonitorHLTHough(AliTPCParam* param)
  40 {
  41 // create a HLT monitor object with the given parameters
  42
  43   fParam = param;
  44 }
  45
  46 //_____________________________________________________________________________
  47 AliMonitorHLTHough::AliMonitorHLTHough(const AliMonitorHLTHough& monitor) :
  48   AliMonitor(monitor)
  49 {
  50   Fatal("AliMonitorHLTHough", "copy constructor not implemented");
  51 }
  52
  53 //_____________________________________________________________________________
  54 AliMonitorHLTHough& AliMonitorHLTHough::operator = (const AliMonitorHLTHough&
  55                                                     /*monitor*/)
  56 {
  57   Fatal("operator =", "assignment operator not implemented");
  58   return *this;
  59 }
  60
  61
  62 //_____________________________________________________________________________
  63 void AliMonitorHLTHough::CreateHistos(TFolder* folder)
  64 {
  65 // create the HLT Hough transform monitor histograms
  66
  67   fFolder = folder->AddFolder("HLTHOUGH", "HLTHOUGH");
  68
  69   fClustersCharge = CreateHisto1("ClustersCharge",
  70                                  "charge distribution of clusters",
  71                                  100, 0, 1000, "charge", "#Delta N/N",
  72                                  AliMonitorHisto::kNormEvents);
  73
  74   Int_t nRows = fParam->GetNRowLow() + fParam->GetNRowUp();
  75   fNClustersVsRow = CreateHisto1("NClustersVsRow",
  76                                  "mean number of clusters per pad row",
  77                                  nRows, -0.5, nRows-0.5,
  78                                  "pad row", "<N_{clusters}>",
  79                                  AliMonitorHisto::kNormEvents);
  80
  81   Int_t nSector = fParam->GetNInnerSector();
  82   fNClustersVsSector = CreateHisto1("NClustersVsSector",
  83                                     "mean number of clusters per sector",
  84                                     nSector, -0.5, nSector-0.5,
  85                                     "sector", "<N_{clusters}>",
  86                                     AliMonitorHisto::kNormEvents);
  87
  88   fNTracks = CreateTrend("NTracks", "number of tracks per event",
  89                          "N_{tracks}");
  90
  91   fTrackPt = CreateHisto1("TrackPt", "pt distribution of tracks",
  92                           90, 0, 3, "p_{t} [GeV/c]", "#Delta N/N",
  93                           AliMonitorHisto::kNormNone);
  94
  95   fTrackEta = CreateHisto1("TrackEta", "eta distribution of tracks",
  96                            100, -2, 2, "#eta", "#Delta N/N",
  97                            AliMonitorHisto::kNormEntries);
  98
  99   fTrackPhi = CreateHisto1("TrackPhi", "phi distribution of tracks",
 100                            120, 0, 360, "#phi [#circ]", "#Delta N/N",
 101                            AliMonitorHisto::kNormEntries);
 102
 103   fTrackNHits = CreateHisto1("TrackNHits", "Number of hits per track",
 104                            200, 0, 200, "N_{hits}", "#Delta N/N",
 105                            AliMonitorHisto::kNormNone);
 106
 107   fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks",
 108                                100, 0, 3, 100, 0, 1000,
 109                                "p [GeV/c]", "dE/dx", "#Delta N/N",
 110                                AliMonitorHisto::kNormEntries);
 111
 112   fTrackDEdx = CreateHisto1("TrackDEdx", "dE/dx for tracks with 0.4<p<1.0 GeV/c",
 113                                50, 0, 300,
 114                                "dE/dx", "#Delta N/N",
 115                                AliMonitorHisto::kNormEntries);
 116
 117   fTrackEtaVsPhi = CreateHisto2("TrackEtaVsPhi", "#phi vs #eta",
 118                                20, -1, 1, 25, 0, 360,
 119                                "#eta", "#phi", "#Delta N/N",
 120                                AliMonitorHisto::kNormNone);
 121
 122   fPtEtaVsPhi = CreateHisto2("PtEtaVsPhi", "#phi vs #eta",
 123                                20, -1, 1, 25, 0, 360,
 124                                "#eta", "#phi", "#Delta N/N",
 125                                AliMonitorHisto::kNormNone);
 126
 127 }
 128
 129
 130 //_____________________________________________________________________________
 131 void AliMonitorHLTHough::FillHistos(AliRunLoader* /*runLoader*/,
 132                                     AliRawReader* /*rawReader*/)
 133 {
 134 // fill the HLT Hough transform monitor histograms
 135
 136 #ifndef ALI_HLT
 137   Warning("FillHistos", "the code was compiled without HLT support");
 138
 139 #else
 140   AliL3MemHandler clusterHandler[36][6];
 141   AliL3SpacePointData *clusters[36][6];
 142   for (Int_t iSector = 0; iSector < fParam->GetNInnerSector(); iSector++) {
 143     for (Int_t iPatch = 0; iPatch < 6; iPatch++) {
 144       char fileName[256];
 145       sprintf(fileName, "hlt/fitter/points_%d_%d.raw", iSector,iPatch);
 146       if (!clusterHandler[iSector][iPatch].SetBinaryInput(fileName)) {
 147         Warning("FillHistos", "could not open file %s", fileName);
 148         continue;
 149       }
 150       clusters[iSector][iPatch] = (AliL3SpacePointData*) clusterHandler[iSector][iPatch].Allocate();
 151       UInt_t nClusters = 0;
 152       clusterHandler[iSector][iPatch].Binary2Memory(nClusters, clusters[iSector][iPatch]);
 153
 154       for (UInt_t iCluster = 0; iCluster < nClusters; iCluster++) {
 155         AliL3SpacePointData& cluster = clusters[iSector][iPatch][iCluster];
 156         fClustersCharge->Fill(cluster.fCharge);
 157         fNClustersVsRow->Fill(cluster.fPadRow);
 158         fNClustersVsSector->Fill(iSector);
 159       }
 160
 161       clusterHandler[iSector][iPatch].CloseBinaryInput();
 162     }
 163   }
 164
 165   fNClustersVsSector->ScaleErrorBy(10.);
 166
 167
 168   AliL3MemHandler memHandler;
 169   Int_t nHoughTracks = 0;
 170
 171   char fileName[256];
 172   sprintf(fileName, "hlt/fitter/tracks.raw");
 173   if (!memHandler.SetBinaryInput(fileName)) {
 174     Warning("FillHistos", "could not open file hlt/fitter/tracks.raw");
 175     return;
 176   }
 177   AliL3TrackArray* tracks = new AliL3TrackArray;
 178   memHandler.Binary2TrackArray(tracks);
 179
 180   nHoughTracks += tracks->GetNTracks();
 181   for (Int_t iTrack = 0; iTrack < tracks->GetNTracks(); iTrack++) {
 182     AliL3HoughTrack *track = (AliL3HoughTrack*)tracks->GetCheckedTrack(iTrack);
 183     if(!track) continue;
 184
 185     track->CalculateHelix();
 186     //  track->Rotate(iSector);
 187
 188     fTrackPt->Fill(track->GetPt());
 189     fTrackEta->Fill(track->GetPseudoRapidity());
 190     fTrackPhi->Fill(track->GetPsi() * TMath::RadToDeg());
 191     if(track->GetPt()>3.) {
 192       fTrackEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg());
 193       fPtEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg(),track->GetPt());
 194     }
 195     fTrackNHits->Fill(track->GetNHits());
 196
 197     // Track dEdx
 198     Int_t nc=track->GetNHits();
 199     UInt_t *hits = track->GetHitNumbers();
 200     Float_t sampleDEdx[159];
 201     for (Int_t iHit = 0; iHit < nc; iHit++) {
 202       UInt_t hitID = hits[iHit];
 203       Int_t iSector = (hitID>>25) & 0x7f;
 204       Int_t iPatch = (hitID>>22) & 0x7;
 205       UInt_t position = hitID&0x3fffff;
 206       UChar_t padrow = clusters[iSector][iPatch][position].fPadRow;
 207       Float_t pWidth = AliL3Transform::GetPadPitchWidthLow();
 208       if (padrow>63)
 209         pWidth = AliL3Transform::GetPadPitchWidthUp();
 210       Float_t corr=1.; if (padrow>63) corr=0.67;
 211       sampleDEdx[iHit] = clusters[iSector][iPatch][position].fCharge/pWidth*corr;
 212       Double_t crossingangle = track->GetCrossingAngle(padrow,iSector);
 213       Double_t s = sin(crossingangle);
 214       Double_t t = track->GetTgl();
 215       sampleDEdx[iHit] *= TMath::Sqrt((1-s*s)/(1+t*t));
 216     }
 217
 218     /* Cook dEdx */
 219     Int_t i;
 220     Int_t swap;//stupid sorting
 221     do {
 222       swap=0;
 223       for (i=0; i<nc-1; i++) {
 224         if (sampleDEdx[i]<=sampleDEdx[i+1]) continue;
 225         Float_t tmp=sampleDEdx[i];
 226         sampleDEdx[i]=sampleDEdx[i+1]; sampleDEdx[i+1]=tmp;
 227         swap++;
 228       }
 229     } while (swap);
 230
 231     Double_t low=0.05; Double_t up=0.7;
 232     Int_t nl=Int_t(low*nc), nu=Int_t(up*nc);
 233     Float_t trackDEdx=0;
 234     for (i=nl; i<=nu; i++) trackDEdx += sampleDEdx[i];
 235     trackDEdx /= (nu-nl+1);
 236
 237     fTrackDEdxVsP->Fill(track->GetP(),trackDEdx);
 238     if(track->GetP()>0.4 && track->GetP()<1.0)
 239       fTrackDEdx->Fill(trackDEdx);
 240   }
 241   fNTracks->Fill(nHoughTracks);
 242
 243   delete tracks;
 244   memHandler.CloseBinaryInput();
 245
 246 #endif
 247 }