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b8dc484b | 1 | /************************************************************************** |
48217459 | 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 * | |
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 | **************************************************************************/ | |
b8dc484b | 15 | |
e54bf126 | 16 | // $Id$ |
17 | ||
18 | /// \ingroup macros | |
19 | /// \file MUONRecoCheck.C | |
20 | /// \brief Utility macro to check the muon reconstruction. | |
21 | /// | |
22 | /// Reconstructed tracks are compared to reference tracks. The reference tracks | |
23 | /// are built from AliTrackReference for the hit in chamber (0..9) and from | |
24 | /// kinematics (TreeK) for the vertex parameters. | |
25 | /// | |
26 | /// \author Jean-Pierre Cussonneau, Subatech | |
27 | ||
b8dc484b | 28 | // ROOT includes |
29 | #include "TClonesArray.h" | |
30 | #include "TH1.h" | |
b8dc484b | 31 | #include "TFile.h" |
32 | ||
33 | // STEER includes | |
a99c3449 | 34 | #include "AliCDBManager.h" |
b8dc484b | 35 | |
36 | // MUON includes | |
a99c3449 | 37 | #include "AliMUONCDB.h" |
b8dc484b | 38 | #include "AliMUONConstants.h" |
39 | #include "AliMUONTrack.h" | |
40 | #include "AliMUONRecoCheck.h" | |
41 | #include "AliMUONTrackParam.h" | |
8cde4af5 | 42 | #include "AliMUONTrackExtrap.h" |
a99c3449 | 43 | #include "AliMUONRecoParam.h" |
48217459 | 44 | #include "AliMUONVTrackStore.h" |
b8dc484b | 45 | |
46 | Int_t TrackCheck( Bool_t *compTrack); | |
47 | ||
a99c3449 | 48 | void MUONRecoCheck (Int_t nEvent = -1, char * pathSim="./generated/", char * esdFileName="AliESDs.root", |
49 | const char* ocdbPath = "local://$ALICE_ROOT/OCDB") | |
e54bf126 | 50 | { |
b8dc484b | 51 | |
c59f70b9 | 52 | Bool_t compTrack[10]; |
b8dc484b | 53 | Bool_t compTrackOK[10]; |
96ebe67e | 54 | Int_t nClusterOk = 0; |
b8dc484b | 55 | Int_t testTrack = 0; |
56 | Int_t iTrack = 0; | |
48217459 | 57 | AliMUONTrack* trackOK(0x0); |
b8dc484b | 58 | Int_t trackID = 0; |
61fed964 | 59 | Double_t maxChi2 = 999.; |
b8dc484b | 60 | AliMUONTrackParam *trackParam; |
b8dc484b | 61 | Double_t x1,y1,z1,pX1,pY1,pZ1,p1; |
62 | Double_t x2,y2,z2,pX2,pY2,pZ2,p2; | |
48217459 | 63 | |
b8dc484b | 64 | // File for histograms and histogram booking |
65 | TFile *histoFile = new TFile("MUONRecoCheck.root", "RECREATE"); | |
48217459 | 66 | |
b8dc484b | 67 | TH1F *hReconstructible = new TH1F("hReconstructible"," Nb of reconstructible tracks ",15,-0.5,14.5); |
68 | TH1F *hReco = new TH1F("hReco"," Nb of reconstructed tracks / evt",15,-0.5,14.5); | |
96ebe67e | 69 | TH1F *hNClusterComp = new TH1F("hNClusterComp"," Nb of compatible clusters / track ",15,-0.5,14.5); |
b8dc484b | 70 | TH1F *hTestTrack = new TH1F("hTestTrack"," Reconstruction requirement / track",15,-0.5,14.5); |
71 | TH1F *hTrackRefID = new TH1F("hTrackRefID"," track reference ID ",100,-0.5,99.5); | |
72 | ||
96ebe67e | 73 | TH1F *hResMomVertex = new TH1F("hResMomVertex"," delta P vertex (GeV/c)",100,-10.,10); |
74 | TH1F *hResMomFirstCluster = new TH1F("hResMomFirstCluster"," delta P first cluster (GeV/c)",100,-10.,10); | |
48217459 | 75 | |
a99c3449 | 76 | AliMUONRecoCheck rc(esdFileName, pathSim); |
77 | ||
78 | // load necessary data from OCDB | |
79 | AliCDBManager::Instance()->SetDefaultStorage(ocdbPath); | |
80 | AliCDBManager::Instance()->SetRun(rc.GetRunNumber()); | |
81 | AliMUONCDB::LoadField(); | |
82 | AliMUONRecoParam* recoParam = AliMUONCDB::LoadRecoParam(); | |
83 | if (!recoParam) return; | |
a0bfad0e | 84 | |
a0bfad0e | 85 | // set the magnetic field for track extrapolations |
f7a1cc68 | 86 | AliMUONTrackExtrap::SetField(); |
87 | ||
a99c3449 | 88 | // get sigma cut from recoParam to associate clusters with TrackRefs |
89 | Double_t sigmaCut = (recoParam->ImproveTracks()) ? recoParam->GetSigmaCutForImprovement() : recoParam->GetSigmaCutForTracking(); | |
48217459 | 90 | |
91 | Int_t nevents = rc.NumberOfEvents(); | |
b8dc484b | 92 | |
edcc5b56 | 93 | if (nevents < nEvent || nEvent < 0) nEvent = nevents; |
b8dc484b | 94 | |
95 | Int_t ievent; | |
96 | Int_t nReconstructibleTracks = 0; | |
97 | Int_t nReconstructedTracks = 0; | |
98 | Int_t nReconstructibleTracksCheck = 0; | |
48217459 | 99 | |
100 | for (ievent=0; ievent<nEvent; ievent++) | |
101 | { | |
b8dc484b | 102 | if (!(ievent%10)) printf(" **** event # %d \n",ievent); |
b8dc484b | 103 | |
a99c3449 | 104 | AliMUONVTrackStore* trackStore = rc.ReconstructedTracks(ievent, kFALSE); |
48217459 | 105 | AliMUONVTrackStore* trackRefStore = rc.ReconstructibleTracks(ievent); |
b8dc484b | 106 | |
48217459 | 107 | hReconstructible->Fill(trackRefStore->GetSize()); |
108 | hReco->Fill(trackStore->GetSize()); | |
109 | ||
110 | nReconstructibleTracks += trackRefStore->GetSize(); | |
111 | nReconstructedTracks += trackStore->GetSize(); | |
112 | ||
113 | TIter next(trackRefStore->CreateIterator()); | |
114 | AliMUONTrack* trackRef; | |
115 | ||
116 | while ( ( trackRef = static_cast<AliMUONTrack*>(next()) ) ) | |
117 | { | |
61fed964 | 118 | maxChi2 = 999.; |
b8dc484b | 119 | testTrack = 0; |
48217459 | 120 | trackOK = 0x0; |
b8dc484b | 121 | for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++) |
48217459 | 122 | { |
123 | compTrackOK[ch] = kFALSE; | |
b8dc484b | 124 | } |
48217459 | 125 | |
126 | TIter next2(trackStore->CreateIterator()); | |
127 | AliMUONTrack* trackReco; | |
128 | ||
129 | while ( ( trackReco = static_cast<AliMUONTrack*>(next2()) ) ) | |
130 | { | |
61fed964 | 131 | // check if trackRef is compatible with trackReco |
132 | if (trackReco->GetNClusters() > 1) { | |
133 | ||
134 | // check cluster by cluster if trackReco contain info at each cluster | |
c59f70b9 | 135 | trackRef->CompatibleTrack(trackReco,sigmaCut,compTrack); |
61fed964 | 136 | |
137 | iTrack = TrackCheck(compTrack); | |
138 | ||
139 | if (iTrack > testTrack) | |
140 | { | |
141 | nClusterOk = 0; | |
142 | for (Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ch++) | |
143 | { | |
144 | if (compTrack[ch]) nClusterOk++; | |
145 | compTrackOK[ch] = compTrack[ch]; | |
146 | } | |
147 | testTrack = iTrack; | |
148 | trackOK = trackReco; | |
149 | } | |
150 | ||
151 | } else { | |
152 | ||
153 | // check only parameters at the z position of the first trackRef | |
154 | AliMUONTrackParam *refParam = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->First(); | |
155 | AliMUONTrackParam recoParam(*((AliMUONTrackParam*) trackReco->GetTrackParamAtCluster()->First())); | |
61fed964 | 156 | Double_t chi2; |
4ea3f013 | 157 | if (AliMUONTrackExtrap::ExtrapToZCov(&recoParam, refParam->GetZ()) && |
158 | refParam->CompatibleTrackParam(recoParam, sigmaCut, chi2) && chi2 < maxChi2) | |
159 | { | |
61fed964 | 160 | maxChi2 = chi2; |
161 | trackOK = trackReco; | |
61fed964 | 162 | } |
163 | ||
164 | } | |
48217459 | 165 | |
48217459 | 166 | } |
167 | ||
b8dc484b | 168 | hTestTrack->Fill(testTrack); |
edcc5b56 | 169 | trackID = trackRef->GetMCLabel(); |
b8dc484b | 170 | hTrackRefID->Fill(trackID); |
48217459 | 171 | |
61fed964 | 172 | if (testTrack == 4 || maxChi2 < 5.*sigmaCut*sigmaCut) { // tracking requirements verified, track is found |
48217459 | 173 | nReconstructibleTracksCheck++; |
96ebe67e | 174 | hNClusterComp->Fill(nClusterOk); |
48217459 | 175 | trackParam = trackRef->GetTrackParamAtVertex(); |
176 | x1 = trackParam->GetNonBendingCoor(); | |
177 | y1 = trackParam->GetBendingCoor(); | |
178 | z1 = trackParam->GetZ(); | |
179 | pX1 = trackParam->Px(); | |
180 | pY1 = trackParam->Py(); | |
181 | pZ1 = trackParam->Pz(); | |
182 | p1 = trackParam->P(); | |
183 | ||
184 | // printf(" Ref. track at vertex: x,y,z: %f %f %f px,py,pz,p: %f %f %f %f \n",x1,y1,z1,pX1,pY1,pZ1,p1); | |
185 | trackReco = trackOK; | |
fa5e35be | 186 | trackParam = new AliMUONTrackParam(*((AliMUONTrackParam*)(trackReco->GetTrackParamAtVertex()))); |
48217459 | 187 | x2 = trackParam->GetNonBendingCoor(); |
188 | y2 = trackParam->GetBendingCoor(); | |
189 | z2 = trackParam->GetZ(); | |
190 | pX2 = trackParam->Px(); | |
191 | pY2 = trackParam->Py(); | |
192 | pZ2 = trackParam->Pz(); | |
193 | p2 = trackParam->P(); | |
194 | delete trackParam; | |
195 | // printf(" Reconst. track at vertex: x,y,z: %f %f %f px,py,pz: %f %f %f %f \n",x2,y2,z2,pX2,pY2,pZ2,p2); | |
196 | ||
197 | hResMomVertex->Fill(p2-p1); | |
198 | ||
96ebe67e | 199 | trackParam = (AliMUONTrackParam*) trackRef->GetTrackParamAtCluster()->First(); |
48217459 | 200 | x1 = trackParam->GetNonBendingCoor(); |
201 | y1 = trackParam->GetBendingCoor(); | |
202 | z1 = trackParam->GetZ(); | |
203 | pX1 = trackParam->Px(); | |
204 | pY1 = trackParam->Py(); | |
205 | pZ1 = trackParam->Pz(); | |
206 | p1 = trackParam->P(); | |
96ebe67e | 207 | // printf(" Ref. track at 1st cluster: x,y,z: %f %f %f px,py,pz: %f %f %f \n",x1,y1,z1,pX1,pY1,pZ1); |
208 | trackParam = (AliMUONTrackParam*) trackOK->GetTrackParamAtCluster()->First(); | |
48217459 | 209 | x2 = trackParam->GetNonBendingCoor(); |
210 | y2 = trackParam->GetBendingCoor(); | |
211 | z2 = trackParam->GetZ(); | |
212 | pX2 = trackParam->Px(); | |
213 | pY2 = trackParam->Py(); | |
214 | pZ2 = trackParam->Pz(); | |
215 | p2 = trackParam->P(); | |
96ebe67e | 216 | // printf(" Reconst. track at 1st cluster: x,y,z: %f %f %f px,py,pz: %f %f %f \n",x2,y2,z2,pX2,pY2,pZ2); |
48217459 | 217 | |
96ebe67e | 218 | hResMomFirstCluster->Fill(p2-p1); |
b8dc484b | 219 | |
220 | } | |
221 | } // end loop track ref. | |
b8dc484b | 222 | |
48217459 | 223 | } // end loop on event |
224 | ||
b8dc484b | 225 | printf(" nb of reconstructible tracks: %d \n", nReconstructibleTracks); |
226 | printf(" nb of reconstructed tracks: %d \n", nReconstructedTracks); | |
227 | printf(" nb of reconstructible tracks which are reconstructed: %d \n", nReconstructibleTracksCheck); | |
228 | ||
229 | histoFile->Write(); | |
230 | histoFile->Close(); | |
231 | } | |
232 | ||
233 | ||
234 | Int_t TrackCheck( Bool_t *compTrack) | |
235 | { | |
236 | // Apply reconstruction requirements | |
237 | // Return number of validated conditions | |
238 | // If all the tests are verified then TrackCheck = 4 (good track) | |
239 | Int_t iTrack = 0; | |
96ebe67e | 240 | Int_t nCompClustersInLastStations = 0; |
b8dc484b | 241 | |
242 | // apply reconstruction requirements | |
96ebe67e | 243 | if (compTrack[0] || compTrack[1]) iTrack++; // at least one compatible cluster in st. 0 |
244 | if (compTrack[2] || compTrack[3]) iTrack++; // at least one compatible cluster in st. 1 | |
245 | if (compTrack[4] || compTrack[5]) iTrack++; // at least one compatible cluster in st. 2 | |
b8dc484b | 246 | for (Int_t ch = 6; ch < AliMUONConstants::NTrackingCh(); ch++) { |
96ebe67e | 247 | if (compTrack[ch]) nCompClustersInLastStations++; |
b8dc484b | 248 | } |
96ebe67e | 249 | if (nCompClustersInLastStations > 2) iTrack++; // at least 3 compatible clusters in st. 3 & 4 |
b8dc484b | 250 | |
251 | return iTrack; | |
48217459 | 252 | |
b8dc484b | 253 | } |
254 |