PLOT

        [GREG2\]PLOT [Varname]  [/SCALING  Type  Low [/BLANKING  Bval  Eval]
    [/POSITION  Posx1  Posx2  Posy1  Posy2]  [/LIMITS  Userx1  Userx2 Usery1
    Usery2] [/VISIBLE]

    PLOT will put a pixel image (pixels contained in the  variable  Varname)
    inside the current BOX. Varname is a 2-D SIC variable name that defaults
    to the RG variable if ommitted. Subsets like A[4] where A is a  3-D  sic
    variable  are  not  yet  allowed.  How  to  create  and handle images in
    programs calling the GREG2\ language (including GREG)  is  described  in
    the subtopic IMAGE_HOWTO.

    This command is normally used in the following sequence:

    Greg> SET BOX LOCATION Gx1 Gx2 Gy1 Gy2  ! Define box position
    Greg> RGDATA Varname /VARIABLE          ! Put image in the RG variable,
                                            ! read associated header variables
    Greg> LIMITS/RGDATA                     ! Computes associated limits
    Greg> PLOT                              ! Plot the array in the box
    Greg> BOX                               ! Draws the box