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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 digitsEMCAL(Int_t nevents, Int_t nfiles) { | |
41 | ||
42 | TH1F *hadc = new TH1F("hadc","EMCAL digit",200, -10., 200.); | |
43 | TH1F *hadclog = new TH1F("hadclog","EMCAL digit",200, 0.5, 3.); | |
44 | ||
45 | TTree *treeD=0x0; | |
46 | ||
47 | TClonesArray *digits =0x0; | |
48 | ||
49 | for (Int_t event=0; event<nevents; event++) { | |
50 | cout << "Event " << event << endl; | |
51 | ||
52 | treeD = GetTreeD(event, "EMCAL", nfiles); | |
53 | if ( ! treeD ) { | |
54 | cerr << "Event directory not found in " << nfiles << " files" << endl; | |
55 | exit(1); | |
56 | } | |
57 | ||
58 | digits = NULL; | |
59 | treeD->SetBranchAddress("EMCAL", &digits); | |
60 | ||
61 | for(Int_t iev=0; iev<treeD->GetEntries(); iev++){ | |
62 | treeD->GetEntry(iev); | |
63 | ||
64 | ||
65 | for (Int_t j = 0; j < digits->GetEntries(); j++) { | |
66 | AliDigitNew* dig = dynamic_cast<AliDigitNew*> (digits->At(j)); | |
67 | hadc->Fill(dig->GetAmp()); | |
68 | if(dig->GetAmp()>0)hadclog->Fill(TMath::Log10(dig->GetAmp())); | |
69 | } | |
70 | ||
71 | } | |
72 | } | |
73 | ||
74 | TFile fc("digits.EMCAL.root","RECREATE"); | |
75 | fc.cd(); | |
76 | ||
77 | hadc->Write(); | |
78 | hadclog->Write(); | |
79 | ||
80 | fc.Close(); | |
81 | } | |
82 | ||
83 | ||
84 | ||
85 | ||
86 | ||
87 | ||
88 |