Source: stream/marker/marker__get_coords.pro
marker::get_coords
Return the vertices of a marker
Usage:
coord = mref -> get_coords()
Keywords:
x If set, then return only the x coordinates
y If set, then return only the y coordinates
doy If set (and x is set) then convert time coordinates to
date format.
History:
Original: 31/5/02; SJT