Event Visualisation View

To run o2-eve you need to have a computer with linux or mac with properly build O2. There are no special hardware requirements, but for performance it is better to have discrete graphic card.

Prerequisites

for o2-eve to run you should:

have in the working folder:
- .o2eve_config file (available from EventVisualisation/Scripts)
- o2sim_geometry.root (copied from simulation folder)
- o2sim_grp.root (copied from simulation folder)
have (somewhere, specified by command line parameter) folder with json files (f.e /home/ed/jsons)
have (somewhere, specified in .o2eve_config file) folder with simplify geometry files (f.e /home/ed/geom/O2)

Running o2-eve

Here are sample commands:

alienv enter O2/latest-dev-o2
cd /home/ed     # working folder containing .o2eve_config, o2sim_geometry.root and o2sim_grp.root
o2-eve -o -d /home/ed/jsons

o2-eve command line parameters:

parameter	description	status
i	displaying ITS tracks from `o2trac_its.root` and clusters from `o2clus_its.root`	(under development)
j	reading from *.json files (non online mode). require specification of json folder with `-d`
o	online mode. require specification of json folder with `-d`
r	randomly generated tracks	(test option, switched off)
t	displaying TPC tracks from `o2trac_its.root` and clusters from `o2clus_its.root`	(under development)
v	displaying data from sample ROOT file (vsd)	(development test usage only)
f file	location of AOD file containing data to be displayed	(under development)
d folder	location of json folder - a folder where json files from workflow data are located