DCL:GRPH1:SLPACK: Layout Routines:Explanation of Main Subroutines
Initializes the layout subroutine package. In GRPH1, it is called internally by sgopn (Actually by sginit; See Section 2.4.1), so the user does not have to call it directly.
wxmax, wymax (R) The maximum frame (given in units of the WC). fact (R) Gives the ratio between the unit length in WC and the actual length.