KEYLINE

     KEYLINE indicates which contour lines to process based on VGTYPE
     and SUBTYP.

	KEYLINE = 0	- process all line types
	KEYLINE = m/n	- process all lines with VGTYPE m and SUBTYP n
			  where
			    m is the VGF Object type and can be
				 LINE or SPLN (special line type).
			    n is the GEMPAK code number for a specific
				 object type within VGTYPE.  See
				 $GEMTBL/pgen/setting.tbl for code numbers.
     For example:

		KEYLINE=SPLN/4    will process only pointed arrowed lines.
		KEYLINE=SPLN/3    will process only scalloped lines.