LIMITS

##
LIMITS

            [GREG1\]LIMITS  [X1  X2  Y1  Y2  [Unit]]  [/XLOG]  [/YLOG] [/RGDATA]
        [/BLANKING Bval Eval] [/REVERSE [X] [Y]]  [/VARIABLES  Array_X  Array_Y]
        [/MARGIN [...]]

        Sets the coordinates of the plot region. The limits are the user coordi-
        nates of the BOX corners, and  in  conjunction  with  the  BOX_LOCATION,
        specifies the conversion formula between USER and PLOT coordinates.

        The limits can be computed from different data:
          - if  LIMITS  has no arguments, it will compute automatic limits using
            data from the most recent COLUMN X and Y, if any,
          - if the option /RGDATA is present, the current Regular  Grid  map  is
            used, if any,
          - if  the  option /VARIABLES Array_X Array_Y is present, the named SIC
            variables are used.
        Options /RGDATA and /VARIABLES are exclusive.

        Some special characters are allowed instead of numerical values for  the
        limits :
              *   Compute automatic limit for this argument
              <   Compute automatic limit for this argument, and take
                  the minimum of this value and the precedent limit.
              >   Same as above, but take the maximum.
              =   Keep the precedent value for this limit.

        An  additional  argument  can be used when a projection and a system are
        defined. It may take values
          - RADIAN : The values are assumed to be normal  projected  coordinates
            from the projection center.
          - SECOND,  MINUTE or DEGREE : The values are converted from the speci-
            fied angular unit to radians. They still represent offsets from  the
            projection center.
          - ABSOLUTE  : The values are assumed to be absolute coordinates on the
            sphere. APPROXIMATE corresponding projected coordinates are computed
            from these values (the projected coordinates are necessarily approx-
            imate since in general e.g. the upper left and lower left corner  of
            the box correspond to different absolute Right ascension for Equato-
            rial system).
        The default value is the current angle unit as defined by SET ANGLE.

Subsections

- LIMITS /BLANKING
- LIMITS /MARGIN
- LIMITS /REVERSE
- LIMITS /RGDATA
- LIMITS /XLOG
- LIMITS /YLOG