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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 | //*-- Yves Schutz (SUBATECH) | |
21 | // Reconstruction class. Redesigned from the old AliReconstructionner class and | |
22 | // derived from STEER/AliReconstructor. | |
23 | // | |
24 | // --- ROOT system --- | |
25 | ||
26 | // --- Standard library --- | |
27 | ||
28 | // --- AliRoot header files --- | |
29 | #include "AliESD.h" | |
30 | #include "AliPHOSReconstructor.h" | |
31 | #include "AliPHOSClusterizerv1.h" | |
32 | #include "AliPHOSTrackSegmentMakerv1.h" | |
33 | #include "AliPHOSPIDv1.h" | |
34 | #include "AliPHOSGetter.h" | |
35 | #include "AliPHOSTracker.h" | |
36 | #include "AliRawReaderFile.h" | |
37 | ||
38 | ||
39 | ClassImp(AliPHOSReconstructor) | |
40 | ||
41 | Bool_t AliPHOSReconstructor::fgDebug = kFALSE ; | |
42 | ||
43 | //____________________________________________________________________________ | |
44 | AliPHOSReconstructor::AliPHOSReconstructor() | |
45 | { | |
46 | // ctor | |
47 | ||
48 | } | |
49 | ||
50 | //____________________________________________________________________________ | |
51 | AliPHOSReconstructor::~AliPHOSReconstructor() | |
52 | { | |
53 | // dtor | |
54 | ||
55 | } | |
56 | ||
57 | //____________________________________________________________________________ | |
58 | void AliPHOSReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
59 | { | |
60 | // method called by AliReconstruction; | |
61 | // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track | |
62 | // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by | |
63 | // the global tracking. | |
64 | ||
65 | TString headerFile(runLoader->GetFileName()) ; | |
66 | TString branchName(runLoader->GetEventFolder()->GetName()) ; | |
67 | ||
68 | AliPHOSClusterizerv1 clu(headerFile, branchName); | |
69 | clu.SetEventRange(0, -1) ; // do all the events | |
70 | if ( Debug() ) | |
71 | clu.ExecuteTask("deb all") ; | |
72 | else | |
73 | clu.ExecuteTask("") ; | |
74 | ||
75 | } | |
76 | ||
77 | //____________________________________________________________________________ | |
78 | void AliPHOSReconstructor::Reconstruct(AliRunLoader* runLoader, AliRawReader* rawreader) const | |
79 | { | |
80 | // method called by AliReconstruction; | |
81 | // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track | |
82 | // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by | |
83 | // the global tracking. | |
84 | // Here we reconstruct from Raw Data | |
85 | ||
86 | rawreader->Reset() ; | |
87 | TString headerFile(runLoader->GetFileName()) ; | |
88 | TString branchName(runLoader->GetEventFolder()->GetName()) ; | |
89 | ||
90 | AliPHOSClusterizerv1 clu(headerFile, branchName); | |
91 | clu.SetEventRange(0, -1) ; // do all the events | |
92 | if ( Debug() ) | |
93 | clu.ExecuteTask("deb all") ; | |
94 | else | |
95 | clu.ExecuteTask("") ; | |
96 | ||
97 | } | |
98 | ||
99 | //____________________________________________________________________________ | |
100 | void AliPHOSReconstructor::FillESD(AliRunLoader* runLoader, AliESD* esd) const | |
101 | { | |
102 | // This function creates AliESDtracks from AliPHOSRecParticles | |
103 | // and | |
104 | // writes them to the ESD | |
105 | ||
106 | Int_t eventNumber = runLoader->GetEventNumber() ; | |
107 | ||
108 | AliPHOSGetter::Instance()->Event(eventNumber, "P") ; | |
109 | TClonesArray *recParticles = AliPHOSGetter::Instance()->RecParticles(); | |
110 | Int_t nOfRecParticles = recParticles->GetEntries(); | |
111 | esd->SetNumberOfPHOSParticles(nOfRecParticles) ; | |
112 | esd->SetFirstPHOSParticle(esd->GetNumberOfTracks()) ; | |
113 | ||
114 | for (Int_t recpart = 0 ; recpart < nOfRecParticles ; recpart++) { | |
115 | AliPHOSRecParticle * rp = dynamic_cast<AliPHOSRecParticle*>(recParticles->At(recpart)); | |
116 | if (Debug()) | |
117 | rp->Print(); | |
118 | AliESDtrack * et = new AliESDtrack() ; | |
119 | // fills the ESDtrack | |
120 | Double_t xyz[3]; | |
121 | for (Int_t ixyz=0; ixyz<3; ixyz++) | |
122 | xyz[ixyz] = rp->GetPos()[ixyz]; | |
123 | et->SetPHOSposition(xyz) ; | |
124 | et->SetPHOSsignal (rp->Energy()) ; | |
125 | et->SetPHOSpid (rp->GetPID()) ; | |
126 | et->SetLabel (rp->GetPrimaryIndex()); | |
127 | // add the track to the esd object | |
128 | esd->AddTrack(et); | |
129 | delete et; | |
130 | } | |
131 | } | |
132 | ||
133 | AliTracker* AliPHOSReconstructor::CreateTracker(AliRunLoader* runLoader) const | |
134 | { | |
135 | // creates the PHOS tracker | |
136 | if (!runLoader) return NULL; | |
137 | return new AliPHOSTracker(runLoader); | |
138 | } | |
139 |