(def->legend != NULL) ? def->legend : def->ds_name,
def->stack ? ":STACK" : "");
array_append_format (args, "GPRINT:vdef_%04i_min:%s min,",
(def->legend != NULL) ? def->legend : def->ds_name,
def->stack ? ":STACK" : "");
array_append_format (args, "GPRINT:vdef_%04i_min:%s min,",