WEDGE

##
WEDGE

            [GREG2\]WEDGE [Top|Bottom|Left|Right [Size]]  [/SCALING  Lin|Log|Equ
        Min Max] [/LEVEL [Label] ]

        Will  plot  a  WEDGE along the current BOX. WEDGES are used after a PLOT
        command to show the relationship between pixel hues and image values.

        The default position is Right, i.e., on the right side of the  box,  but
        the  other location and size modifiers are self-explanatory. The SCALING
        defaults to the current scaling of the last image PLOTted,  but  can  be
        changed (as in command PLOT) with the /SCALING option.

        The  /LEVEL option will draw levels (as defined by the LEVEL command) at
        their appropriate location on the wedge. The modifier Label  will  label
        the  wedge  axis  with the level values. This is the default (i.e., some
        levels should be defined) for the EQUALIZATION Mode, for which the rela-
        tionship between pixel hues and image values is strongly non-linear.