SPACE_TYPE

###
SPACE_TYPE

              CHARACTER SPACE_TYPE

         Define the type of spacing for the contour levels
           LIN       Linear spacings. The Zero contour is always omitted.
           LOG       Exponential spacing
           NONE      No contour levels at all (same as DO_CONTOUR = NO)
           USER      Keep the contour levels specified by command LEVELS
        For LOG case, see HELP LEVELS EXPO in the GreG internal help.

        As  a  backward compatibility, a negative spacing is a convention to use
        the current contour levels, although using SPACE_TYPE = USER  should  be
        preferred.