SOURCES

        SHOW SOURCES [First [Last]]

    Display  the  "point  sources"  found  by  CLEAN at their positions, using a
    marker with area proportional to their flux. Positive sources are in  black,
    negative ones are in red.

    The  displayed  zone  is  controlled by variables SIZE and CENTER, as for in
    SHOW CLEAN  or SHOW DIRTY. However, when SIZE is 0, the  displayed  zone  is
    set to  the minimum required to display all point sources detected by CLEAN.
    It may thus differ from the CLEAN map size.