DCL:GRPH1:SLPACK: Layout Routine:Explanation of Main Subroutines
Divides a frame into sections and defines the frames on the next level.
CALL SLDIV(CFORM,IX,IY)
CFORM (C*1) Specifies the direction to divide the frame. If sectioning in the Y direction, set 'T'ate or 'L'engthways, If sectioning in the X direction, set 'Y'oko or 'S'ideways, IX, IY (I) The number of sections in the X and Y directions.