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