CTYPE
 
     CTYPE specifies the contouring algorithms to use separated by
     slashes:

		type 1 / type 2 / ... / type n

     Valid inputs for type are:

	C	the original GEMPAK contouring algorithm
	F	contour fill algorithm
	B	box algorithm -- same as contour fill, but draws lines 
		around the polygons rather than filling in polygons.

     Note that contour attributes are specified in CONTUR.  The contour 
     interval and line characteristics for types C and B are read
     from CINT and LINE and for type F from FINT and FLINE.

     Examples:

	CTYPE = C	--	draws contour lines

	CTYPE = C / F	--	draws filled contours overlaid with lines