1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // This class creates and fills the monitor histograms for the HLT //
22 ///////////////////////////////////////////////////////////////////////////////
25 #include "AliMonitorHLT.h"
26 #include "AliMonitorTrend.h"
27 #include "AliTPCParam.h"
30 #include "AliL3MemHandler.h"
31 #include "AliL3SpacePointData.h"
32 #include "AliL3TrackArray.h"
33 #include "AliL3Track.h"
34 #include "AliL3Transform.h"
35 #include "AliL3Vertex.h"
37 //_____________________________________________________________________________
38 AliMonitorHLT::AliMonitorHLT(AliTPCParam* param)
40 // create a HLT monitor object with the given parameters
45 //_____________________________________________________________________________
46 AliMonitorHLT::AliMonitorHLT(const AliMonitorHLT& monitor) :
49 Fatal("AliMonitorHLT", "copy constructor not implemented");
52 //_____________________________________________________________________________
53 AliMonitorHLT& AliMonitorHLT::operator = (const AliMonitorHLT& /*monitor*/)
55 Fatal("operator =", "assignment operator not implemented");
60 //_____________________________________________________________________________
61 void AliMonitorHLT::CreateHistos(TFolder* folder)
63 // create the HLT monitor histograms
65 fFolder = folder->AddFolder("HLT", "HLT");
67 fClustersCharge = CreateHisto1("ClustersCharge",
68 "charge distribution of clusters",
69 100, 0, 1000, "charge", "#Delta N/N",
70 AliMonitorHisto::kNormEvents);
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);
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);
86 fNTracks = CreateTrend("NTracks", "number of tracks per event",
89 fTrackPt = CreateHisto1("TrackPt", "pt distribution of tracks",
90 90, 0, 3, "p_{t} [GeV/c]", "#Delta N/N",
91 AliMonitorHisto::kNormNone);
93 fTrackEta = CreateHisto1("TrackEta", "eta distribution of tracks",
94 100, -2, 2, "#eta", "#Delta N/N",
95 AliMonitorHisto::kNormEntries);
97 fTrackPhi = CreateHisto1("TrackPhi", "phi distribution of tracks",
98 120, 0, 360, "#phi [#circ]", "#Delta N/N",
99 AliMonitorHisto::kNormEntries);
101 fTrackNHits = CreateHisto1("TrackNHits", "Number of hits per track",
102 200, 0, 200, "N_{hits}", "#Delta N/N",
103 AliMonitorHisto::kNormNone);
105 fTrackXYvsNHits = CreateHisto2("TrackXYvsNHits", "XY vs Number of hits per track",
107 "N_{hits}","Radius [cm]","#Delta N/N",
108 AliMonitorHisto::kNormNone);
110 fTrackZvsNHits = CreateHisto2("TrackZvsNHits", "Z vs Number of hits per track",
111 50, 0, 200,50,-20,20,
112 "N_{hits}","Z [cm]","#Delta N/N",
113 AliMonitorHisto::kNormNone);
115 fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks",
116 100, 0, 3, 100, 0, 1000,
117 "p [GeV/c]", "dE/dx", "#Delta N/N",
118 AliMonitorHisto::kNormEntries);
120 fTrackDEdx = CreateHisto1("TrackDEdx", "dE/dx for tracks with 0.4<p<1.0 GeV/c",
122 "dE/dx", "#Delta N/N",
123 AliMonitorHisto::kNormEntries);
125 fTrackDz0 = CreateHisto1("TrackDz0", "Dz0 of tracks",
126 100, -100, 100, "#Delta z0 [cm]", "#Delta N/N",
127 AliMonitorHisto::kNormEntries);
129 fTrackDr0 = CreateHisto1("TrackDr0", "Dr0 of tracks",
130 130, 80, 250, "#Delta r0 [cm]", "#Delta N/N",
131 AliMonitorHisto::kNormEntries);
133 fTrackEtaVsPhi = CreateHisto2("TrackEtaVsPhi", "#phi vs #eta",
134 20, -1, 1, 25, 0, 360,
135 "#eta", "#phi", "#Delta N/N",
136 AliMonitorHisto::kNormNone);
138 fPtEtaVsPhi = CreateHisto2("PtEtaVsPhi", "#phi vs #eta",
139 20, -1, 1, 25, 0, 360,
140 "#eta", "#phi", "#Delta N/N",
141 AliMonitorHisto::kNormNone);
146 //_____________________________________________________________________________
147 void AliMonitorHLT::FillHistos(AliRunLoader* /*runLoader*/,
148 AliRawReader* /*rawReader*/, AliESD* /*esd*/)
150 // fill the HLT monitor histogrms
152 AliL3MemHandler clusterHandler[36];
153 AliL3SpacePointData *clusters[36];
154 for (Int_t iSector = 0; iSector < fParam->GetNInnerSector(); iSector++) {
156 sprintf(fileName, "hlt/points_%d_-1.raw", iSector);
157 if (!clusterHandler[iSector].SetBinaryInput(fileName)) {
158 Warning("FillHistos", "could not open file %s", fileName);
161 clusters[iSector] = (AliL3SpacePointData*) clusterHandler[iSector].Allocate();
162 UInt_t nClusters = 0;
163 clusterHandler[iSector].Binary2Memory(nClusters, clusters[iSector]);
165 for (UInt_t iCluster = 0; iCluster < nClusters; iCluster++) {
166 AliL3SpacePointData& cluster = clusters[iSector][iCluster];
167 fClustersCharge->Fill(cluster.fCharge);
168 fNClustersVsRow->Fill(cluster.fPadRow);
169 fNClustersVsSector->Fill(iSector);
172 clusterHandler[iSector].CloseBinaryInput();
175 fNClustersVsSector->ScaleErrorBy(10.);
177 AliL3MemHandler memHandler;
178 if (!memHandler.SetBinaryInput("hlt/tracks.raw")) {
179 Warning("FillHistos", "could not open file hlt/tracks.raw");
182 AliL3TrackArray* tracks = new AliL3TrackArray;
183 memHandler.Binary2TrackArray(tracks);
187 fNTracks->Fill(tracks->GetNTracks());
188 for (Int_t iTrack = 0; iTrack < tracks->GetNTracks(); iTrack++) {
189 AliL3Track* track = tracks->GetCheckedTrack(iTrack);
191 track->CalculateHelix();
192 track->GetClosestPoint(&vertex,xc,yc,zc);
193 if(TMath::Abs(zc)>10.) continue;
194 fTrackPt->Fill(track->GetPt());
195 fTrackEta->Fill(track->GetPseudoRapidity());
196 fTrackPhi->Fill(track->GetPsi() * TMath::RadToDeg());
197 if(track->GetPt()>3.) {
198 fTrackEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg());
199 fPtEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg(),track->GetPt());
201 fTrackDz0->Fill(track->GetZ0());
202 fTrackDr0->Fill(track->GetR0());
203 fTrackNHits->Fill(track->GetNHits());
204 fTrackXYvsNHits->Fill(track->GetNHits(),TMath::Sqrt(xc*xc+yc*yc));
205 fTrackZvsNHits->Fill(track->GetNHits(),zc);
208 Int_t nc=track->GetNHits();
209 UInt_t *hits = track->GetHitNumbers();
210 Float_t sampleDEdx[159];
211 for (Int_t iHit = 0; iHit < nc; iHit++) {
212 UInt_t hitID = hits[iHit];
213 Int_t iSector = (hitID>>25) & 0x7f;
214 UInt_t position = hitID&0x3fffff;
215 UChar_t padrow = clusters[iSector][position].fPadRow;
216 Float_t pWidth = AliL3Transform::GetPadPitchWidthLow();
218 pWidth = AliL3Transform::GetPadPitchWidthUp();
219 Float_t corr=1.; if (padrow>63) corr=0.67;
220 sampleDEdx[iHit] = clusters[iSector][position].fCharge/pWidth*corr;
221 Double_t crossingangle = track->GetCrossingAngle(padrow,iSector);
222 Double_t s = sin(crossingangle);
223 Double_t t = track->GetTgl();
224 sampleDEdx[iHit] *= TMath::Sqrt((1-s*s)/(1+t*t));
229 Int_t swap;//stupid sorting
232 for (i=0; i<nc-1; i++) {
233 if (sampleDEdx[i]<=sampleDEdx[i+1]) continue;
234 Float_t tmp=sampleDEdx[i];
235 sampleDEdx[i]=sampleDEdx[i+1]; sampleDEdx[i+1]=tmp;
240 Double_t low=0.05; Double_t up=0.7;
241 Int_t nl=Int_t(low*nc), nu=Int_t(up*nc);
243 for (i=nl; i<=nu; i++) trackDEdx += sampleDEdx[i];
244 trackDEdx /= (nu-nl+1);
246 fTrackDEdxVsP->Fill(track->GetP(),trackDEdx);
247 if(track->GetP()>0.4 && track->GetP()<1.0)
248 fTrackDEdx->Fill(trackDEdx);
252 memHandler.CloseBinaryInput();