dim	IN:	Dimension this label, unit and format refer to
	label	OUT:	Label that describes this dimension
	unit	OUT:	Unit to be used with this dimension
	format	OUT:	Format to be used in displaying scale for this dimension

	Purpose	Retrieves the label, unit, and format attribute strings corresponding to the specified dimension.
	Return value	Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
	Description	The space allocated for the label, unit, and format string must be at least one byte larger than the length of the string to accommodate the null termination. If the length is unknown when the program is written, declare the array size as 1+maxlen_label, maxlen_unit, or maxlen_format after they are set by DFSDsetlengths. The maximum default string length is 255.

	FORTRAN	integer function dsgdist(dim, label, unit, format)
		integer dim
		character*(*) label, unit, format