17.12.29 Variables:

SHOW Image control variables

The following variables control the SHOW display.

   Display the header     DO_HEADER   [ YES ]
   Display a color wedge  DO_WEDGE    [ YES ]
   Plot bitmaps           DO_BIT      [ YES ]
   Add the clean beam     DO_NICE     [ NO ]
   Add the UV coverage    DO_COVERAGE [ NO ]
   Add the dirty beam     DO_DIRTY    [ NO ]
   Display the labels     DO_LABEL    [ YES ]
   Display contour levels DO_CONTOUR  [ YES ]
   grey-scale contours    DO_GREY     [ NO ]
   Better marks           DO_MASK     [ NO ]           (Hide image behind channel marks)

   Channel range          RANGE       [ 0 0 ]         in 3rd axis unit, (0,0) ==> all
   Channel label          MARK        [ velocity ]    [VELOCITY, FREQUENCY or CHANNEL]
   Displayed field size   SIZE        [ 0 0 ]         in ANGLE_UNIT
   Field center           CENTER      [ 0 0 ]         offset in ANGLE_UNIT
   Cross size at center   CROSS       [ 2 ]           in arcsec, 0 ==> none
   Fields layout          DO_FIELDS   [ NO ]          (for Mosaics)

   Colour Scale range     SCALE       [ 0 0 ]         (0,0) ==> all dynamic
   Contour levels         SPACING     [ 0 Units]      (0) =+> Guess
   Spacing type           SPACE_TYPE  [ AUTO]  [LIN, LOG or USER]
   Side Display           SHOW_SIDE  [ NO ]

SHOW also uses the (user-defined, optional) variable

 overlay_com       " " Command to be executed to add informations on Maps.