@Override
protected void parseArgs(CommandLine cli, String[] args) throws ParseException, HelpException {
super.parseArgs(cli, args);
graph_options.parse(cli);
ext_fmt.parse(cli);
if (cli.hasOption(maxTimeOption)) maxTime = Long.parseLong(cli.getOptionValue(maxTimeOption));
dtps = getTicsPerSecond(cli.getOptionValue(destTimeUnitOption, "s"));
if (dtps == null) throw new HelpException();
d_interval = Double.parseDouble(cli.getOptionValue(intervalOption, "1"));
}
