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121a60bd | 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 * | |
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 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // class for TRD reconstruction // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
e3b2b5e5 | 24 | #include <TFile.h> |
121a60bd | 25 | |
26 | #include "AliTRDReconstructor.h" | |
27 | #include "AliRunLoader.h" | |
121a60bd | 28 | #include "AliTRDclusterizerV1.h" |
29 | #include "AliTRDtracker.h" | |
b0f03c34 | 30 | #include "AliTRDpidESD.h" |
6965c99b | 31 | #include "AliRawReader.h" |
928e9fae | 32 | #include "AliLog.h" |
0ee00e25 | 33 | #include "AliTRDtrigger.h" |
34 | #include "AliTRDtrigParam.h" | |
e3b2b5e5 | 35 | #include "AliTRDgtuTrack.h" |
0ee00e25 | 36 | #include "AliRun.h" |
37 | #include "AliESDTrdTrack.h" | |
38 | #include "AliESD.h" | |
121a60bd | 39 | |
40 | ClassImp(AliTRDReconstructor) | |
41 | ||
0397ce53 | 42 | Bool_t AliTRDReconstructor::fgkSeedingOn = kFALSE; |
43 | ||
121a60bd | 44 | //_____________________________________________________________________________ |
45 | void AliTRDReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
46 | { | |
47 | // reconstruct clusters | |
48 | ||
2b217b01 | 49 | AliLoader *loader=runLoader->GetLoader("TRDLoader"); |
50 | loader->LoadRecPoints("recreate"); | |
51 | ||
121a60bd | 52 | AliTRDclusterizerV1 clusterer("clusterer", "TRD clusterizer"); |
53 | runLoader->CdGAFile(); | |
121a60bd | 54 | Int_t nEvents = runLoader->GetNumberOfEvents(); |
55 | ||
56 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
57 | clusterer.Open(runLoader->GetFileName(), iEvent); | |
58 | clusterer.ReadDigits(); | |
59 | clusterer.MakeClusters(); | |
60 | clusterer.WriteClusters(-1); | |
61 | } | |
1a39153b | 62 | |
63 | loader->UnloadRecPoints(); | |
0ee00e25 | 64 | |
65 | // Trigger (tracklets, LTU) | |
66 | ||
e3b2b5e5 | 67 | loader->LoadTracks(); |
68 | if (loader->TreeT()) { | |
69 | Info("Reconstruct","Tracklets already exist"); | |
70 | return; | |
71 | } | |
72 | Info("Reconstruct","Trigger tracklets will be produced"); | |
73 | ||
0ee00e25 | 74 | AliTRDtrigger trdTrigger("Trigger","Trigger class"); |
75 | ||
76 | AliTRDtrigParam *trigp = new AliTRDtrigParam("TRDtrigParam","TRD Trigger parameters"); | |
77 | ||
78 | if (runLoader->GetAliRun() == 0x0) runLoader->LoadgAlice(); | |
79 | gAlice = runLoader->GetAliRun(); | |
80 | Double_t x[3] = { 0.0, 0.0, 0.0 }; | |
81 | Double_t b[3]; | |
82 | gAlice->Field(x,b); // b[] is in kilo Gauss | |
83 | Float_t field = b[2] * 0.1; // Tesla | |
84 | Info("Reconstruct","Trigger set for magnetic field = %f Tesla \n",field); | |
85 | ||
86 | trigp->SetField(field); | |
87 | trigp->Init(); | |
88 | trdTrigger.SetParameter(trigp); | |
89 | ||
90 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
91 | trdTrigger.Open(runLoader->GetFileName(), iEvent); | |
92 | trdTrigger.ReadDigits(); | |
93 | trdTrigger.MakeTracklets(); | |
94 | trdTrigger.WriteTracklets(-1); | |
95 | } | |
96 | ||
97 | loader->UnloadTracks(); | |
98 | ||
121a60bd | 99 | } |
100 | ||
101 | //_____________________________________________________________________________ | |
928e9fae | 102 | void AliTRDReconstructor::Reconstruct(AliRunLoader* runLoader, |
103 | AliRawReader* rawReader) const | |
104 | { | |
105 | // reconstruct clusters | |
106 | ||
107 | AliInfo("Reconstruct TRD clusters from RAW data"); | |
108 | ||
109 | AliLoader *loader=runLoader->GetLoader("TRDLoader"); | |
110 | loader->LoadRecPoints("recreate"); | |
111 | ||
112 | AliTRDclusterizerV1 clusterer("clusterer", "TRD clusterizer"); | |
113 | runLoader->CdGAFile(); | |
928e9fae | 114 | Int_t nEvents = runLoader->GetNumberOfEvents(); |
115 | ||
116 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
117 | if (!rawReader->NextEvent()) break; | |
118 | clusterer.Open(runLoader->GetFileName(), iEvent); | |
119 | clusterer.ReadDigits(rawReader); | |
120 | clusterer.MakeClusters(); | |
121 | clusterer.WriteClusters(-1); | |
122 | } | |
123 | ||
124 | loader->UnloadRecPoints(); | |
0ee00e25 | 125 | |
126 | // Trigger (tracklets, LTU) | |
127 | ||
e3b2b5e5 | 128 | loader->LoadTracks(); |
129 | if (loader->TreeT()) { | |
130 | Info("Reconstruct","Tracklets already exist"); | |
131 | return; | |
132 | } | |
133 | Info("Reconstruct","Trigger tracklets will be produced"); | |
134 | ||
0ee00e25 | 135 | AliTRDtrigger trdTrigger("Trigger","Trigger class"); |
136 | ||
137 | AliTRDtrigParam *trigp = new AliTRDtrigParam("TRDtrigParam","TRD Trigger parameters"); | |
138 | ||
139 | if (runLoader->GetAliRun() == 0x0) runLoader->LoadgAlice(); | |
140 | gAlice = runLoader->GetAliRun(); | |
141 | Double_t x[3] = { 0.0, 0.0, 0.0 }; | |
142 | Double_t b[3]; | |
143 | gAlice->Field(x,b); // b[] is in kilo Gauss | |
144 | Float_t field = b[2] * 0.1; // Tesla | |
145 | Info("Reconstruct","Trigger set for magnetic field = %f Tesla \n",field); | |
146 | ||
147 | trigp->SetField(field); | |
148 | trigp->Init(); | |
149 | trdTrigger.SetParameter(trigp); | |
150 | ||
d202144c | 151 | rawReader->RewindEvents(); |
152 | ||
0ee00e25 | 153 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { |
d202144c | 154 | if (!rawReader->NextEvent()) break; |
0ee00e25 | 155 | trdTrigger.Open(runLoader->GetFileName(), iEvent); |
156 | trdTrigger.ReadDigits(rawReader); | |
157 | trdTrigger.MakeTracklets(); | |
158 | trdTrigger.WriteTracklets(-1); | |
159 | } | |
160 | ||
161 | loader->UnloadTracks(); | |
162 | ||
928e9fae | 163 | } |
164 | ||
165 | //_____________________________________________________________________________ | |
121a60bd | 166 | AliTracker* AliTRDReconstructor::CreateTracker(AliRunLoader* runLoader) const |
167 | { | |
168 | // create a TRD tracker | |
169 | ||
170 | runLoader->CdGAFile(); | |
171 | return new AliTRDtracker(gFile); | |
172 | } | |
173 | ||
174 | //_____________________________________________________________________________ | |
0ee00e25 | 175 | void AliTRDReconstructor::FillESD(AliRunLoader* runLoader, |
b0f03c34 | 176 | AliESD* esd) const |
121a60bd | 177 | { |
b0f03c34 | 178 | // make PID |
179 | ||
180 | Double_t parTRD[] = { | |
eab5961e | 181 | 280., // Min. Ionizing Particle signal. Check it !!! |
b0f03c34 | 182 | 0.23, // relative resolution Check it !!! |
183 | 10. // PID range (in sigmas) | |
184 | }; | |
185 | AliTRDpidESD trdPID(parTRD); | |
186 | trdPID.MakePID(esd); | |
0ee00e25 | 187 | |
188 | // Trigger (tracks, GTU) | |
189 | ||
190 | AliTRDtrigger trdTrigger("Trigger","Trigger class"); | |
191 | ||
192 | AliTRDtrigParam *trigp = new AliTRDtrigParam("TRDtrigParam","TRD Trigger parameters"); | |
193 | ||
194 | if (runLoader->GetAliRun() == 0x0) runLoader->LoadgAlice(); | |
195 | gAlice = runLoader->GetAliRun(); | |
196 | Double_t x[3] = { 0.0, 0.0, 0.0 }; | |
197 | Double_t b[3]; | |
198 | gAlice->Field(x,b); // b[] is in kilo Gauss | |
199 | Float_t field = b[2] * 0.1; // Tesla | |
200 | Info("FillESD","Trigger set for magnetic field = %f Tesla \n",field); | |
201 | ||
202 | trigp->SetField(field); | |
203 | trigp->Init(); | |
204 | ||
205 | trdTrigger.SetParameter(trigp); | |
206 | trdTrigger.SetRunLoader(runLoader); | |
207 | trdTrigger.Init(); | |
208 | ||
209 | Int_t iEvent = runLoader->GetEventNumber(); | |
210 | runLoader->GetEvent(iEvent); | |
211 | trdTrigger.ReadTracklets(runLoader); | |
212 | ||
213 | AliESDTrdTrack *TrdTrack = new AliESDTrdTrack(); | |
214 | AliTRDgtuTrack *GtuTrack; | |
215 | ||
216 | Int_t nTracks = trdTrigger.GetNumberOfTracks(); | |
217 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { | |
218 | ||
219 | GtuTrack = trdTrigger.GetTrack(iTrack); | |
220 | ||
221 | TrdTrack->SetYproj(GtuTrack->GetYproj()); | |
222 | TrdTrack->SetZproj(GtuTrack->GetZproj()); | |
223 | TrdTrack->SetSlope(GtuTrack->GetSlope()); | |
224 | TrdTrack->SetDetector(GtuTrack->GetDetector()); | |
225 | TrdTrack->SetTracklets(GtuTrack->GetTracklets()); | |
226 | TrdTrack->SetPlanes(GtuTrack->GetPlanes()); | |
227 | TrdTrack->SetClusters(GtuTrack->GetClusters()); | |
228 | TrdTrack->SetPt(GtuTrack->GetPt()); | |
229 | TrdTrack->SetPhi(GtuTrack->GetPhi()); | |
230 | TrdTrack->SetEta(GtuTrack->GetEta()); | |
231 | TrdTrack->SetLabel(GtuTrack->GetLabel()); | |
232 | TrdTrack->SetPID(GtuTrack->GetPID()); | |
4c8471bd | 233 | TrdTrack->SetIsElectron(GtuTrack->IsElectron()); |
0ee00e25 | 234 | |
235 | esd->AddTrdTrack(TrdTrack); | |
236 | ||
237 | } | |
238 | ||
121a60bd | 239 | } |
240 | ||
241 | ||
121a60bd | 242 |