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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 | ||
24 | ||
25 | #include "AliTRDReconstructor.h" | |
26 | #include "AliRunLoader.h" | |
27 | #include "AliTRDparameter.h" | |
121a60bd | 28 | #include "AliTRDclusterizerV1.h" |
29 | #include "AliTRDtracker.h" | |
b0f03c34 | 30 | #include "AliTRDpidESD.h" |
121a60bd | 31 | #include <TFile.h> |
928e9fae | 32 | #include "AliRawReaderFile.h" |
33 | #include "AliLog.h" | |
121a60bd | 34 | |
35 | ClassImp(AliTRDReconstructor) | |
36 | ||
37 | ||
38 | //_____________________________________________________________________________ | |
39 | void AliTRDReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
40 | { | |
41 | // reconstruct clusters | |
42 | ||
2b217b01 | 43 | AliLoader *loader=runLoader->GetLoader("TRDLoader"); |
44 | loader->LoadRecPoints("recreate"); | |
45 | ||
121a60bd | 46 | AliTRDclusterizerV1 clusterer("clusterer", "TRD clusterizer"); |
47 | runLoader->CdGAFile(); | |
48 | AliTRDparameter* trdParam = GetTRDparameter(runLoader); | |
49 | if (!trdParam) { | |
50 | Error("Reconstruct", "no TRD parameters found"); | |
51 | return; | |
52 | } | |
53 | trdParam->ReInit(); | |
54 | clusterer.SetParameter(trdParam); | |
55 | Int_t nEvents = runLoader->GetNumberOfEvents(); | |
56 | ||
57 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
58 | clusterer.Open(runLoader->GetFileName(), iEvent); | |
59 | clusterer.ReadDigits(); | |
60 | clusterer.MakeClusters(); | |
61 | clusterer.WriteClusters(-1); | |
62 | } | |
1a39153b | 63 | |
64 | loader->UnloadRecPoints(); | |
121a60bd | 65 | } |
66 | ||
67 | //_____________________________________________________________________________ | |
928e9fae | 68 | void AliTRDReconstructor::Reconstruct(AliRunLoader* runLoader, |
69 | AliRawReader* rawReader) const | |
70 | { | |
71 | // reconstruct clusters | |
72 | ||
73 | AliInfo("Reconstruct TRD clusters from RAW data"); | |
74 | ||
75 | AliLoader *loader=runLoader->GetLoader("TRDLoader"); | |
76 | loader->LoadRecPoints("recreate"); | |
77 | ||
78 | AliTRDclusterizerV1 clusterer("clusterer", "TRD clusterizer"); | |
79 | runLoader->CdGAFile(); | |
80 | AliTRDparameter* trdParam = GetTRDparameter(runLoader); | |
81 | if (!trdParam) { | |
82 | Error("Reconstruct", "no TRD parameters found"); | |
83 | return; | |
84 | } | |
85 | trdParam->ReInit(); | |
86 | clusterer.SetParameter(trdParam); | |
87 | Int_t nEvents = runLoader->GetNumberOfEvents(); | |
88 | ||
89 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
90 | if (!rawReader->NextEvent()) break; | |
91 | clusterer.Open(runLoader->GetFileName(), iEvent); | |
92 | clusterer.ReadDigits(rawReader); | |
93 | clusterer.MakeClusters(); | |
94 | clusterer.WriteClusters(-1); | |
95 | } | |
96 | ||
97 | loader->UnloadRecPoints(); | |
98 | } | |
99 | ||
100 | //_____________________________________________________________________________ | |
121a60bd | 101 | AliTracker* AliTRDReconstructor::CreateTracker(AliRunLoader* runLoader) const |
102 | { | |
103 | // create a TRD tracker | |
104 | ||
105 | runLoader->CdGAFile(); | |
106 | return new AliTRDtracker(gFile); | |
107 | } | |
108 | ||
109 | //_____________________________________________________________________________ | |
110 | void AliTRDReconstructor::FillESD(AliRunLoader* /*runLoader*/, | |
b0f03c34 | 111 | AliESD* esd) const |
121a60bd | 112 | { |
b0f03c34 | 113 | // make PID |
114 | ||
115 | Double_t parTRD[] = { | |
eab5961e | 116 | 280., // Min. Ionizing Particle signal. Check it !!! |
b0f03c34 | 117 | 0.23, // relative resolution Check it !!! |
118 | 10. // PID range (in sigmas) | |
119 | }; | |
120 | AliTRDpidESD trdPID(parTRD); | |
121 | trdPID.MakePID(esd); | |
121a60bd | 122 | } |
123 | ||
124 | ||
125 | //_____________________________________________________________________________ | |
126 | AliTRDparameter* AliTRDReconstructor::GetTRDparameter(AliRunLoader* runLoader) const | |
127 | { | |
128 | // get the TRD parameters | |
129 | ||
130 | runLoader->CdGAFile(); | |
131 | AliTRDparameter* trdParam = (AliTRDparameter*) gFile->Get("TRDparameter"); | |
132 | if (!trdParam) { | |
133 | Error("GetTRDparameter", "no TRD parameters available"); | |
134 | return NULL; | |
135 | } | |
136 | return trdParam; | |
137 | } | |
138 | ||
139 |