use ESD based tracking methods
[u/mrichter/AliRoot.git] / MONITOR / AliMonitorHLT.cxx
1 /**************************************************************************
2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
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11  * appear in the supporting documentation. The authors make no claims     *
12  * about the suitability of this software for any purpose. It is          *
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14  **************************************************************************/
15
16 /* $Id$ */
17
18 ///////////////////////////////////////////////////////////////////////////////
19 //                                                                           //
20 //  This class creates and fills the monitor histograms for the HLT          //
21 //                                                                           //
22 ///////////////////////////////////////////////////////////////////////////////
23
24
25 #include "AliMonitorHLT.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 "AliL3SpacePointData.h"
33 #include "AliL3TrackArray.h"
34 #include "AliL3Track.h"
35 #include "AliL3Transform.h"
36 #include "AliL3Vertex.h"
37 #endif
38
39 //_____________________________________________________________________________
40 AliMonitorHLT::AliMonitorHLT(AliTPCParam* param)
41 {
42 // create a HLT monitor object with the given parameters
43
44   fParam = param;
45 }
46
47 //_____________________________________________________________________________
48 AliMonitorHLT::AliMonitorHLT(const AliMonitorHLT& monitor) :
49   AliMonitor(monitor)
50 {
51   Fatal("AliMonitorHLT", "copy constructor not implemented");
52 }
53
54 //_____________________________________________________________________________
55 AliMonitorHLT& AliMonitorHLT::operator = (const AliMonitorHLT& /*monitor*/)
56 {
57   Fatal("operator =", "assignment operator not implemented");
58   return *this;
59 }
60
61
62 //_____________________________________________________________________________
63 void AliMonitorHLT::CreateHistos(TFolder* folder)
64 {
65 // create the HLT monitor histograms
66
67   fFolder = folder->AddFolder("HLT", "HLT");
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   fTrackXYvsNHits = CreateHisto2("TrackXYvsNHits", "XY vs Number of hits per track", 
108                                  50, 0, 200,50,0,10,
109                                  "N_{hits}","Radius [cm]","#Delta N/N",
110                                  AliMonitorHisto::kNormNone);
111
112   fTrackZvsNHits = CreateHisto2("TrackZvsNHits", "Z vs Number of hits per track", 
113                                  50, 0, 200,50,-20,20,
114                                  "N_{hits}","Z [cm]","#Delta N/N",
115                                  AliMonitorHisto::kNormNone);
116
117   fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks", 
118                                100, 0, 3, 100, 0, 1000, 
119                                "p [GeV/c]", "dE/dx", "#Delta N/N",
120                                AliMonitorHisto::kNormEntries);
121
122   fTrackDEdx = CreateHisto1("TrackDEdx", "dE/dx for tracks with 0.4<p<1.0 GeV/c", 
123                                50, 0, 300, 
124                                "dE/dx", "#Delta N/N",
125                                AliMonitorHisto::kNormEntries);
126
127   fTrackDz0 = CreateHisto1("TrackDz0", "Dz0 of tracks", 
128                            100, -100, 100, "#Delta z0 [cm]", "#Delta N/N",
129                            AliMonitorHisto::kNormEntries);
130
131   fTrackDr0 = CreateHisto1("TrackDr0", "Dr0 of tracks", 
132                            130, 80, 250, "#Delta r0 [cm]", "#Delta N/N",
133                            AliMonitorHisto::kNormEntries);
134
135   fTrackEtaVsPhi = CreateHisto2("TrackEtaVsPhi", "#phi vs #eta", 
136                                20, -1, 1, 25, 0, 360, 
137                                "#eta", "#phi", "#Delta N/N",
138                                AliMonitorHisto::kNormNone);
139
140   fPtEtaVsPhi = CreateHisto2("PtEtaVsPhi", "#phi vs #eta", 
141                                20, -1, 1, 25, 0, 360, 
142                                "#eta", "#phi", "#Delta N/N",
143                                AliMonitorHisto::kNormNone);
144
145 }
146
147
148 //_____________________________________________________________________________
149 void AliMonitorHLT::FillHistos(AliRunLoader* /*runLoader*/, 
150                                AliRawReader* /*rawReader*/, AliESD* /*esd*/)
151 {
152 // fill the HLT monitor histogrms
153
154 #ifndef ALI_HLT
155   Warning("FillHistos", "the code was compiled without HLT support");
156
157 #else
158   AliL3MemHandler clusterHandler[36];
159   AliL3SpacePointData *clusters[36];
160   for (Int_t iSector = 0; iSector < fParam->GetNInnerSector(); iSector++) {
161     char fileName[256];
162     sprintf(fileName, "hlt/points_%d_-1.raw", iSector);
163     if (!clusterHandler[iSector].SetBinaryInput(fileName)) {
164       Warning("FillHistos", "could not open file %s", fileName);
165       continue;
166     }
167     clusters[iSector] = (AliL3SpacePointData*) clusterHandler[iSector].Allocate();
168     UInt_t nClusters = 0;
169     clusterHandler[iSector].Binary2Memory(nClusters, clusters[iSector]);
170
171     for (UInt_t iCluster = 0; iCluster < nClusters; iCluster++) {
172       AliL3SpacePointData& cluster = clusters[iSector][iCluster];
173       fClustersCharge->Fill(cluster.fCharge);
174       fNClustersVsRow->Fill(cluster.fPadRow);
175       fNClustersVsSector->Fill(iSector);
176     }
177
178     clusterHandler[iSector].CloseBinaryInput();
179   }
180
181   fNClustersVsSector->ScaleErrorBy(10.);
182
183   AliL3MemHandler memHandler;
184   if (!memHandler.SetBinaryInput("hlt/tracks.raw")) {
185     Warning("FillHistos", "could not open file hlt/tracks.raw");
186     return;
187   }
188   AliL3TrackArray* tracks = new AliL3TrackArray;
189   memHandler.Binary2TrackArray(tracks);
190   Double_t xc,yc,zc;
191   AliL3Vertex vertex;
192
193   fNTracks->Fill(tracks->GetNTracks());
194   for (Int_t iTrack = 0; iTrack < tracks->GetNTracks(); iTrack++) {
195     AliL3Track* track = tracks->GetCheckedTrack(iTrack);
196     if(!track) continue;
197     track->CalculateHelix();
198     track->GetClosestPoint(&vertex,xc,yc,zc);
199     if(fabs(zc)>10.) continue;
200     fTrackPt->Fill(track->GetPt());
201     fTrackEta->Fill(track->GetPseudoRapidity());
202     fTrackPhi->Fill(track->GetPsi() * TMath::RadToDeg());
203     if(track->GetPt()>3.) {
204       fTrackEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg());
205       fPtEtaVsPhi->Fill(track->GetPseudoRapidity(),track->GetPsi() * TMath::RadToDeg(),track->GetPt());
206     }
207     fTrackDz0->Fill(track->GetZ0());
208     fTrackDr0->Fill(track->GetR0());
209     fTrackNHits->Fill(track->GetNHits());
210     fTrackXYvsNHits->Fill(track->GetNHits(),TMath::Sqrt(xc*xc+yc*yc));
211     fTrackZvsNHits->Fill(track->GetNHits(),zc);
212
213     // Track dEdx
214     Int_t nc=track->GetNHits();
215     UInt_t *hits = track->GetHitNumbers();
216     Float_t sampleDEdx[159];
217     for (Int_t iHit = 0; iHit < nc; iHit++) {
218       UInt_t hitID = hits[iHit];
219       Int_t iSector = (hitID>>25) & 0x7f;
220       UInt_t position = hitID&0x3fffff;
221       UChar_t padrow = clusters[iSector][position].fPadRow;
222       Float_t pWidth = AliL3Transform::GetPadPitchWidthLow();
223       if (padrow>63)
224         pWidth = AliL3Transform::GetPadPitchWidthUp(); 
225       Float_t corr=1.; if (padrow>63) corr=0.67;
226       sampleDEdx[iHit] = clusters[iSector][position].fCharge/pWidth*corr;
227       Double_t crossingangle = track->GetCrossingAngle(padrow,iSector);
228       Double_t s = sin(crossingangle);
229       Double_t t = track->GetTgl();
230       sampleDEdx[iHit] *= TMath::Sqrt((1-s*s)/(1+t*t));
231     }
232
233     /* Cook dEdx */
234     Int_t i;
235     Int_t swap;//stupid sorting
236     do {
237       swap=0;
238       for (i=0; i<nc-1; i++) {
239         if (sampleDEdx[i]<=sampleDEdx[i+1]) continue;
240         Float_t tmp=sampleDEdx[i];
241         sampleDEdx[i]=sampleDEdx[i+1]; sampleDEdx[i+1]=tmp;
242         swap++;
243       }
244     } while (swap);
245
246     Double_t low=0.05; Double_t up=0.7;
247     Int_t nl=Int_t(low*nc), nu=Int_t(up*nc);
248     Float_t trackDEdx=0;
249     for (i=nl; i<=nu; i++) trackDEdx += sampleDEdx[i];
250     trackDEdx /= (nu-nl+1);
251
252     fTrackDEdxVsP->Fill(track->GetP(),trackDEdx);
253     if(track->GetP()>0.4 && track->GetP()<1.0)
254       fTrackDEdx->Fill(trackDEdx);
255   }
256
257   delete tracks;
258   memHandler.CloseBinaryInput();
259 #endif
260 }