DCL:GRPH2:UDPACK: Contour Routines: Explanation of Subroutines
Specifies the format of the contour label.
cfmt (C*(*)) The specified format (shorter than 16 characters)
NumRu::DCL.udsfmt(cfmt).(Since the characters are left aligned, the result is the same for example, with '(I12)', if the label is shorter than 8 characters. The initial value is the option 'D' (an expression 4-to-5-characters long when the number of significant digits is 3), interpreted by the subroutine chval (see section on FMTLIB in the user's manual for "MISC1").
cfmt = NumRu::DCL.udqfmt().