2 //**************************************************************************
3 //* This file is property of and copyright by the ALICE HLT Project *
4 //* ALICE Experiment at CERN, All rights reserved. *
6 //* Primary Authors: Matthias Richter <Matthias.Richter@ift.uib.no> *
7 //* for The ALICE HLT Project. *
9 //* Permission to use, copy, modify and distribute this software and its *
10 //* documentation strictly for non-commercial purposes is hereby granted *
11 //* without fee, provided that the above copyright notice appears in all *
12 //* copies and that both the copyright notice and this permission notice *
13 //* appear in the supporting documentation. The authors make no claims *
14 //* about the suitability of this software for any purpose. It is *
15 //* provided "as is" without express or implied warranty. *
16 //**************************************************************************
19 * Display ESD Tracks from the HLTesdTree in AliEVE.
23 * alieve $ALICE_ROOT/EVE/alice-macros/event_next.C \
24 * $ALICE_ROOT/EVE/macros/alieve_init.C \
25 * $ALICE_ROOT/EVE/alice-macros/geom_simple.C \
26 * $ALICE_ROOT/EVE/alice-macros/esd_hlt_tracks.C
28 * Display is changed to next event by executing event_next()
29 * from the root prompt.
31 * event_next(); esd_tracks(); esd_hlt_tracks();
35 * @author Matthias.Richter@ift.uib.no
38 TEveTrackList* esd_hlt_tracks()
40 TString macroPath=getenv("ALICE_ROOT");
41 macroPath+="/EVE/alice-macros/esd_tracks.C";
42 if (!gROOT->GetInterpreter()->IsLoaded(macroPath)) {
43 if (gSystem->AccessPathName(macroPath)) {
44 Error("hlt_tpc_clusters.C", "can not load %s, please load the esd_tracks.C macro before", macroPath.Data());
47 gROOT->GetInterpreter()->LoadMacro(macroPath);
51 if (!TClass::GetClass("AliEveEventManager")) {
52 Error("hlt_tpc_clusters.C", "EVE library not loaded, please start alieve correctly");
56 AliEveEventManager* eveManager=AliEveEventManager::GetMaster();
58 Error("esd_hlt_tracks.C", "EVE manager not initialized");
62 int eventId=eveManager->GetEventId();
63 TFile* esdFile=eveManager->GetESDFile();
65 Warning("esd_hlt_tracks.C", "can not get esd file from EVE manager");
71 esdFile->GetObject("HLTesdTree", pObj);
72 if (!pObj || (pHLTTree=dynamic_cast<TTree*>(pObj))==NULL) {
73 Info("esd_hlt_tracks.C", "no HLT ESD tree in ESD file");
76 if (pHLTTree->GetEntries()<=eventId) {
77 Warning("esd_hlt_tracks.C", "skiping event %d: out of range %d", eventId, pHLTTree->GetEntries());
81 AliESDEvent* esd=new AliESDEvent;
82 esd->ReadFromTree(pHLTTree);
83 pHLTTree->GetEntry(eventId);
85 TEveTrackList* cont = new TEveTrackList("HLT ESD Tracks");
86 cont->SetMainColor(kCyan+3);
87 esd_track_propagator_setup(cont->GetPropagator(),
88 0.1*esd->GetMagneticField(), 520);
90 eveManager->AddElement(cont);
93 for (Int_t n = 0; n < esd->GetNumberOfTracks(); ++n)
96 TEveTrack* track = esd_make_track(esd->GetTrack(n), cont);
98 cont->AddElement(track);
100 cont->SetTitle(Form("N=%d", count));