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 "AliLog.h"
  29 #include <TFolder.h>
  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
  37 //_____________________________________________________________________________
  38 AliMonitorHLTHough::AliMonitorHLTHough(AliTPCParam* param)
  39 {
  40 // create a HLT monitor object with the given parameters
  41
  42   fParam = param;
  43 }
  44
  45 //_____________________________________________________________________________
  46 AliMonitorHLTHough::AliMonitorHLTHough(const AliMonitorHLTHough& monitor) :
  47   AliMonitor(monitor)
  48 {
  49   AliFatal("copy constructor not implemented");
  50 }
  51
  52 //_____________________________________________________________________________
  53 AliMonitorHLTHough& AliMonitorHLTHough::operator = (const AliMonitorHLTHough&
  54                                                     /*monitor*/)
  55 {
  56   AliFatal("assignment operator not implemented");
  57   return *this;
  58 }
  59
  60
  61 //_____________________________________________________________________________
  62 void AliMonitorHLTHough::CreateHistos(TFolder* folder)
  63 {
  64 // create the HLT Hough transform monitor histograms
  65
  66   fFolder = folder->AddFolder("HLTHOUGH", "HLTHOUGH");
  67
  68   fClustersCharge = CreateHisto1("ClustersCharge",
  69                                  "charge distribution of clusters",
  70                                  100, 0, 1000, "charge", "#Delta N/N",
  71                                  AliMonitorHisto::kNormEvents);
  72
  73   Int_t nRows = fParam->GetNRowLow() + fParam->GetNRowUp();
  74   fNClustersVsRow = CreateHisto1("NClustersVsRow",
  75                                  "mean number of clusters per pad row",
  76                                  nRows, -0.5, nRows-0.5,
  77                                  "pad row", "<N_{clusters}>",
  78                                  AliMonitorHisto::kNormEvents);
  79
  80   Int_t nSector = fParam->GetNInnerSector();
  81   fNClustersVsSector = CreateHisto1("NClustersVsSector",
  82                                     "mean number of clusters per sector",
  83                                     nSector, -0.5, nSector-0.5,
  84                                     "sector", "<N_{clusters}>",
  85                                     AliMonitorHisto::kNormEvents);
  86
  87   fNTracks = CreateTrend("NTracks", "number of tracks per event",
  88                          "N_{tracks}");
  89
  90   fTrackPt = CreateHisto1("TrackPt", "pt distribution of tracks",
  91                           90, 0, 3, "p_{t} [GeV/c]", "#Delta N/N",
  92                           AliMonitorHisto::kNormNone);
  93
  94   fTrackEta = CreateHisto1("TrackEta", "eta distribution of tracks",
  95                            100, -2, 2, "#eta", "#Delta N/N",
  96                            AliMonitorHisto::kNormEntries);
  97
  98   fTrackPhi = CreateHisto1("TrackPhi", "phi distribution of tracks",
  99                            120, 0, 360, "#phi [#circ]", "#Delta N/N",
 100                            AliMonitorHisto::kNormEntries);
 101
 102   fTrackNHits = CreateHisto1("TrackNHits", "Number of hits per track",
 103                            200, 0, 200, "N_{hits}", "#Delta N/N",
 104                            AliMonitorHisto::kNormNone);
 105
 106   fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks",
 107                                100, 0, 3, 100, 0, 1000,
 108                                "p [GeV/c]", "dE/dx", "#Delta N/N",
 109                                AliMonitorHisto::kNormEntries);
 110
 111   fTrackDEdx = CreateHisto1("TrackDEdx", "dE/dx for tracks with 0.4<p<1.0 GeV/c",
 112                                50, 0, 300,
 113                                "dE/dx", "#Delta N/N",
 114                                AliMonitorHisto::kNormEntries);
 115
 116   fTrackEtaVsPhi = CreateHisto2("TrackEtaVsPhi", "#phi vs #eta",
 117                                20, -1, 1, 25, 0, 360,
 118                                "#eta", "#phi", "#Delta N/N",
 119                                AliMonitorHisto::kNormNone);
 120
 121   fPtEtaVsPhi = CreateHisto2("PtEtaVsPhi", "#phi vs #eta",
 122                                20, -1, 1, 25, 0, 360,
 123                                "#eta", "#phi", "#Delta N/N",
 124                                AliMonitorHisto::kNormNone);
 125
 126 }
 127
 128
 129 //_____________________________________________________________________________
 130 void AliMonitorHLTHough::FillHistos(AliRunLoader* /*runLoader*/,
 131                                     AliRawReader* /*rawReader*/,
 132                                     AliESD* /*esd*/)
 133 {
 134 // fill the HLT Hough transform monitor histograms
 135
 136   AliL3MemHandler clusterHandler[36][6];
 137   AliL3SpacePointData *clusters[36][6];
 138   for (Int_t iSector = 0; iSector < fParam->GetNInnerSector(); iSector++) {
 139     for (Int_t iPatch = 0; iPatch < 6; iPatch++) {
 140       char fileName[256];
 141       sprintf(fileName, "hlt/fitter/points_%d_%d.raw", iSector,iPatch);
 142       if (!clusterHandler[iSector][iPatch].SetBinaryInput(fileName)) {
 143         AliWarning(Form("could not open file %s", fileName));
 144         continue;
 145       }
 146       clusters[iSector][iPatch] = (AliL3SpacePointData*) clusterHandler[iSector][iPatch].Allocate();
 147       UInt_t nClusters = 0;
 148       clusterHandler[iSector][iPatch].Binary2Memory(nClusters, clusters[iSector][iPatch]);
 149
 150       for (UInt_t iCluster = 0; iCluster < nClusters; iCluster++) {
 151         AliL3SpacePointData& cluster = clusters[iSector][iPatch][iCluster];
 152         fClustersCharge->Fill(cluster.fCharge);
 153         fNClustersVsRow->Fill(cluster.fPadRow);
 154         fNClustersVsSector->Fill(iSector);
 155       }
 156
 157       clusterHandler[iSector][iPatch].CloseBinaryInput();
 158     }
 159   }
 160
 161   fNClustersVsSector->ScaleErrorBy(10.);
 162
 163
 164   AliL3MemHandler memHandler;
 165   Int_t nHoughTracks = 0;
 166
 167   char fileName[256];
 168   sprintf(fileName, "hlt/fitter/tracks.raw");
 169   if (!memHandler.SetBinaryInput(fileName)) {
 170     AliWarning("could not open file hlt/fitter/tracks.raw");
 171     return;
 172   }
 173   AliL3TrackArray* tracks = new AliL3TrackArray;
 174   memHandler.Binary2TrackArray(tracks);
 175
 176   nHoughTracks += tracks->GetNTracks();
 177   for (Int_t iTrack = 0; iTrack < tracks->GetNTracks(); iTrack++) {
 178     AliL3HoughTrack *track = (AliL3HoughTrack*)tracks->GetCheckedTrack(iTrack);
 179     if(!track) continue;
 180
 181     track->CalculateHelix();
 182     //  track->Rotate(iSector);
 183
 184     fTrackPt->Fill(track->GetPt());
 185     fTrackEta->Fill(track->GetPseudoRapidity());
 186     fTrackPhi->Fill(track->GetPsi() * TMath::RadToDeg());
 187     if(track->GetPt()>3.) {
 188       fTrackEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg());
 189       fPtEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg(),track->GetPt());
 190     }
 191     fTrackNHits->Fill(track->GetNHits());
 192
 193     // Track dEdx
 194     Int_t nc=track->GetNHits();
 195     UInt_t *hits = track->GetHitNumbers();
 196     Float_t sampleDEdx[159];
 197     for (Int_t iHit = 0; iHit < nc; iHit++) {
 198       UInt_t hitID = hits[iHit];
 199       Int_t iSector = (hitID>>25) & 0x7f;
 200       Int_t iPatch = (hitID>>22) & 0x7;
 201       UInt_t position = hitID&0x3fffff;
 202       UChar_t padrow = clusters[iSector][iPatch][position].fPadRow;
 203       Float_t pWidth = AliL3Transform::GetPadPitchWidthLow();
 204       if (padrow>63)
 205         pWidth = AliL3Transform::GetPadPitchWidthUp();
 206       Float_t corr=1.; if (padrow>63) corr=0.67;
 207       sampleDEdx[iHit] = clusters[iSector][iPatch][position].fCharge/pWidth*corr;
 208       Double_t crossingangle = track->GetCrossingAngle(padrow,iSector);
 209       Double_t s = sin(crossingangle);
 210       Double_t t = track->GetTgl();
 211       sampleDEdx[iHit] *= TMath::Sqrt((1-s*s)/(1+t*t));
 212     }
 213
 214     /* Cook dEdx */
 215     Int_t i;
 216     Int_t swap;//stupid sorting
 217     do {
 218       swap=0;
 219       for (i=0; i<nc-1; i++) {
 220         if (sampleDEdx[i]<=sampleDEdx[i+1]) continue;
 221         Float_t tmp=sampleDEdx[i];
 222         sampleDEdx[i]=sampleDEdx[i+1]; sampleDEdx[i+1]=tmp;
 223         swap++;
 224       }
 225     } while (swap);
 226
 227     Double_t low=0.05; Double_t up=0.7;
 228     Int_t nl=Int_t(low*nc), nu=Int_t(up*nc);
 229     Float_t trackDEdx=0;
 230     for (i=nl; i<=nu; i++) trackDEdx += sampleDEdx[i];
 231     trackDEdx /= (nu-nl+1);
 232
 233     fTrackDEdxVsP->Fill(track->GetP(),trackDEdx);
 234     if(track->GetP()>0.4 && track->GetP()<1.0)
 235       fTrackDEdx->Fill(trackDEdx);
 236   }
 237   fNTracks->Fill(nHoughTracks);
 238
 239   delete tracks;
 240   memHandler.CloseBinaryInput();
 241 }