]>
Commit | Line | Data |
---|---|---|
0866e534 | 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 | // Macro to generate histograms from digits | |
19 | // By E. Sicking, CERN | |
20 | ||
21 | TTree* GetTreeD(Int_t ievent, const TString& detName, Int_t nfiles) | |
22 | { | |
23 | for (Int_t file =0; file<nfiles; file++) { | |
24 | TString filename(detName); | |
25 | if ( file == 0 ) { | |
26 | filename += ".Digits.root"; | |
27 | } | |
28 | else { | |
29 | filename += TString(Form(".Digits%d.root",file)); | |
30 | } | |
31 | ||
32 | TFile* file0 = TFile::Open(filename.Data()); | |
33 | ||
34 | TTree* treeD = (TTree*)file0->Get(Form("Event%d/TreeD",ievent)); | |
35 | if (treeD) return treeD; | |
36 | } | |
37 | return 0; | |
38 | } | |
39 | ||
40 | void digitsHMPID(Int_t nevents, Int_t nfiles){ | |
41 | ||
42 | ||
43 | TH1F *hadc = new TH1F("hadc","HMPID digit",200, -100., 3000.); | |
44 | TH1F *hadclog = new TH1F("hadclog","HMPID digit",200, -0., 4.); | |
45 | ||
46 | TTree *treeD=0x0; | |
47 | ||
48 | TClonesArray *digits =0x0; | |
49 | ||
50 | for (Int_t event=0; event<nevents; event++) { | |
51 | cout << "Event " << event << endl; | |
52 | ||
53 | treeD = GetTreeD(event, "HMPID", nfiles); | |
54 | if ( ! treeD ) { | |
55 | cerr << "Event directory not found in " << nfiles << " files" << endl; | |
56 | exit(1); | |
57 | } | |
58 | ||
59 | digits = NULL; | |
60 | treeD->SetBranchAddress("HMPID4", &digits); | |
61 | ||
62 | for(Int_t iev=0; iev<treeD->GetEntries(); iev++){ | |
63 | treeD->GetEntry(iev); | |
64 | ||
65 | ||
66 | for (Int_t j = 0; j < digits->GetEntries(); j++) { | |
67 | AliHMPIDDigit* dig = dynamic_cast<AliHMPIDDigit*> (digits->At(j)); | |
68 | hadc->Fill(dig->Q()); | |
69 | if(dig->Q()>0.)hadclog->Fill(TMath::Log10(dig->Q())); | |
70 | } | |
71 | } | |
72 | } | |
73 | ||
74 | TFile fc("digits.HMPID.root","RECREATE"); | |
75 | fc.cd(); | |
76 | ||
77 | hadc->Write(); | |
78 | hadclog->Write(); | |
79 | ||
80 | fc.Close(); | |
81 | ||
82 | } | |
83 | ||
84 | ||
85 | ||
86 | ||
87 | ||
88 | ||
89 |