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Commit | Line | Data |
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e2a21448 | 1 | void ReadAOD(const char *fileName = "AliAOD.root") { |
2 | ||
3 | // open input file and get the TTree | |
4 | TFile inFile(fileName, "READ"); | |
5 | TTree *aodTree = (TTree*)inFile.Get("AOD"); | |
6 | ||
7 | AliAODEvent *aod = aodTree->GetUserInfo()->FindObject("AliAODEvent"); | |
8 | TIter next(aod->GetList()); | |
41390678 | 9 | TObject *el; |
e2a21448 | 10 | while(el=(TNamed*)next()) |
11 | aodTree->SetBranchAddress(el->GetName(),aod->GetList()->GetObjectRef(el)); | |
12 | ||
13 | // loop over events | |
14 | Int_t nEvents = aodTree->GetEntries(); | |
15 | for (Int_t nEv = 0; nEv < nEvents; nEv++) { | |
16 | cout << "Event: " << nEv+1 << "/" << nEvents << endl; | |
17 | ||
18 | // read events | |
19 | aodTree->GetEvent(nEv); | |
20 | ||
21 | // set pointers | |
22 | aod->GetStdContent(); | |
23 | ||
24 | //print event info | |
25 | aod->GetHeader()->Print(); | |
26 | ||
27 | // loop over tracks | |
28 | Int_t nTracks = aod->GetNTracks(); | |
29 | for (Int_t nTr = 0; nTr < nTracks; nTr++) { | |
30 | ||
31 | // print track info | |
32 | cout << nTr+1 << "/" << nTracks << ": track pt: " << aod->GetTrack(nTr)->Pt() << ", vertex x of this track: " << aod->GetTrack(nTr)->GetProdVertex()->GetX() << endl; | |
33 | } | |
34 | ||
35 | // loop over vertices | |
36 | Int_t nVtxs = aod->GetNVertices(); | |
37 | for (Int_t nVtx = 0; nVtx < nVtxs; nVtx++) { | |
38 | ||
39 | // print track info | |
40 | cout << nVtx+1 << "/" << nVtxs << ": vertex z position: " << aod->GetVertex(nVtx)->GetZ() << endl; | |
41 | } | |
42 | } | |
43 | ||
44 | return; | |
45 | } |