5 \page README_eve Event display
7 This README file shows how to use both the old and new EVE event display for
8 the MUON detector. The explained procedure is a complement to the visualisation
9 of the full ALICE detector discussed on the ALICE Offline page, "Visualisation":
10 http://aliceinfo.cern.ch/Offline/Activities/Visualisation/
12 \section eve_s1 The old EVE event display
14 \subsection eve_s1_sub1 Macros
16 Found in $ALICE_ROOT/EVE/alice-macros and $ALICE_ROOT/EVE/macros.
17 - MUON_displaySimu.C , to be used with simulations (shows also reference
18 tracks, Monte-Carlo tracks and hits)
19 - MUON_displayData.C , to be used with reconstructed raw data (with the option
20 SAVEDIGITS in the reconstruction, "simulation" digits are also produced and
22 - alieve_init.C , initialisation of the EVE environment
23 - event_goto.C , navigation in the tree of events
24 - geom_gentle_muon.C , draws a "light" geometry of the MUON detector obtained
25 from the sensitive volumes of all MUON chambers; the default geometry of the
26 event display is made of contours of the chambers extracted from the mapping
28 \subsection eve_s1_sub2 Usage
30 -# Launch the "alieve" executable
34 -# Load the following macros (.L macro.C)
43 -# Initialize the EVE environment with your data
45 alieve_init("local://$ALICE_ROOT/OCDB","directory_to_data",event_number)
47 -# Display the current event
49 MUON_displaySimu(0,0) - do not show tracks
50 MUON_displaySimu(0,1) - show tracks
51 MUON_displaySimu(1,0) - do not tracks, read digits from produced raw data
52 MUON_displaySimu(1,1) - show tracks, read digits from produced raw data
53 MUON_displayData(1,0) - do not show tracks
54 MUON_displayData(1,1) - show tracks
55 MUON_displayData(0,0) - do not show tracks, read the saved digits
56 MUON_displayData(0,1) - show tracks, read the saved digits
58 -# Draw the "gentle" geometry (sensitive volumes)
62 -# Navigate in the event list
66 -# Shift + right mouse button one a muon track opens the context menu (track
67 and trigger information is available)
69 -# A new flag argument is added to the MUON_display macros for displaying the
70 the clusters taken from the ESD (default), only those attached to the tracks,
71 or from MUONRecPoints, all reconstructed clusters
73 MUON_displaySimu(x,x,1) - clusters from ESD
74 MUON_displaySimu(x,x,0) - clusters from rec points
75 MUON_displayData(x,x,1) - clusters from ESD
76 MUON_displayData(x,x,0) - clusters from rec points
79 \section eve_s2 The new EVE event display
81 \subsection eve_s1_sub3 Macros
83 Found in $ALICE_ROOT/EVE/alice-macros and $ALICE_ROOT/EVE/macros.
84 - muon_init.C , to launch the new display (based on visscan_init.C)
85 - muon_raw.C , display digits from raw data
86 - muon_digits.C , display digits from MUON.Digits.root file
87 - muon_clusters.C , display clusters from MUON.RecPoints.root file
88 - esd_muon_tracks.C , display tracks, clusters attached to tracks and digits
89 attached to clusters (if any) from ESD
90 - muon_trackRefs.C , display simulated tracks and hits in the MUON chambers
91 - kine_tracks.C , display all the simulated tracks
92 - geom_gentle_muon.C , draws a "light" geometry of the MUON detector obtained
93 from the sensitive volumes of all MUON chambers; the default geometry of the
94 event display is made of contours of the chambers extracted from the mapping
96 \subsection eve_s1_sub4 Usage
98 -# Launch the "alieve" executable
102 -# Initialize the EVE environment with the path to the OCDB and your data.
103 -# Reading data locally:
105 .x muon_init.C("local://$ALICE_ROOT/OCDB","directory_to_data")
107 -# Reading data on the grid (link to corresponding raw data is made automatically):
109 .x muon_init.C("raw://","alien:///alice/data/2009/LHC09c/000084039/ESDs/pass1/09000084039008.10")
111 -# Change what to draw: \n
112 Just enable/disable the corresponding macros in the tab "DataSelection"
113 by clicking on the macro name and checking the box "Active"
115 -# Navigate in the event list: \n
116 Just use the buttons or choose the event number in the bottom panel. You can also scan the events by checking the box "Autoload" and change the time between 2 drawing.
118 -# Leave the cursor on a track to pop-up its characteristics
120 This chapter is defined in the READMEeve.txt file.