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59697224 | 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 TPC reconstruction // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | ||
25 | #include "AliTPCReconstructor.h" | |
26 | #include "AliRunLoader.h" | |
27 | #include "AliRun.h" | |
28 | #include "AliTPC.h" | |
29 | #include "AliTPCclustererMI.h" | |
30 | #include "AliTPCtrackerMI.h" | |
31 | #include "AliTPCpidESD.h" | |
32 | ||
33 | ||
34 | ClassImp(AliTPCReconstructor) | |
35 | ||
36 | ||
37 | //_____________________________________________________________________________ | |
38 | void AliTPCReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
39 | { | |
40 | // reconstruct clusters | |
41 | ||
42 | AliLoader* loader = runLoader->GetLoader("TPCLoader"); | |
43 | if (!loader) { | |
44 | Error("Reconstruct", "TPC loader not found"); | |
45 | return; | |
46 | } | |
47 | loader->LoadRecPoints("recreate"); | |
48 | loader->LoadDigits("read"); | |
49 | ||
50 | AliTPCParam* param = GetTPCParam(runLoader); | |
51 | if (!param) return; | |
52 | AliTPCclustererMI clusterer(param); | |
53 | Int_t nEvents = runLoader->GetNumberOfEvents(); | |
54 | ||
55 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
56 | runLoader->GetEvent(iEvent); | |
57 | ||
58 | TTree* treeClusters = loader->TreeR(); | |
59 | if (!treeClusters) { | |
60 | loader->MakeTree("R"); | |
61 | treeClusters = loader->TreeR(); | |
62 | } | |
63 | TTree* treeDigits = loader->TreeD(); | |
64 | if (!treeDigits) { | |
65 | Error("Reconstruct", "Can't get digits tree !"); | |
66 | return; | |
67 | } | |
68 | ||
69 | clusterer.SetInput(treeDigits); | |
70 | clusterer.SetOutput(treeClusters); | |
71 | clusterer.Digits2Clusters(); | |
72 | ||
73 | loader->WriteRecPoints("OVERWRITE"); | |
74 | } | |
75 | ||
76 | loader->UnloadRecPoints(); | |
77 | loader->UnloadDigits(); | |
78 | } | |
79 | ||
80 | //_____________________________________________________________________________ | |
81 | AliTracker* AliTPCReconstructor::CreateTracker(AliRunLoader* runLoader) const | |
82 | { | |
83 | // create a TPC tracker | |
84 | ||
85 | AliTPCParam* param = GetTPCParam(runLoader); | |
86 | if (!param) return NULL; | |
87 | return new AliTPCtrackerMI(param); | |
88 | } | |
89 | ||
90 | //_____________________________________________________________________________ | |
91 | void AliTPCReconstructor::FillESD(AliRunLoader* /*runLoader*/, | |
92 | AliESD* esd) const | |
93 | { | |
94 | // make PID | |
95 | ||
96 | Double_t parTPC[] = {47., 0.10, 10.}; | |
97 | AliTPCpidESD tpcPID(parTPC); | |
98 | tpcPID.MakePID(esd); | |
99 | } | |
100 | ||
101 | ||
102 | //_____________________________________________________________________________ | |
103 | AliTPCParam* AliTPCReconstructor::GetTPCParam(AliRunLoader* runLoader) const | |
104 | { | |
105 | // get the TPC parameters | |
106 | ||
107 | if (!runLoader->GetAliRun()) runLoader->LoadgAlice(); | |
108 | if (!runLoader->GetAliRun()) { | |
109 | Error("GetTPCParam", "couldn't get AliRun object"); | |
110 | return NULL; | |
111 | } | |
112 | AliTPC* tpc = (AliTPC*) runLoader->GetAliRun()->GetDetector("TPC"); | |
113 | if (!tpc) { | |
114 | Error("GetTPCParam", "couldn't get TPC detector"); | |
115 | return NULL; | |
116 | } | |
117 | if (!tpc->GetParam()) { | |
118 | Error("GetTPCParam", "no TPC parameters available"); | |
119 | return NULL; | |
120 | } | |
121 | return tpc->GetParam(); | |
122 | } |