The display area is
defined by the XMAX and YMAX device parameters. By default, the origin
of the graphics output area is the lower left corner of the display
area; the graphics output is offset from the lower left corner of
the display area by the values of HORIGIN and VORIGIN. VORIGIN + VSIZE
cannot exceed YMAX.
Note: When sending output to the
PRINTER destination (ODS PRINTER), if you specify the VSIZE= option
without specifying the HSIZE= option, the default origin of the graphics
output area changes. The default placement of the graph changes from
the lower left corner of the display area to the top-center of the
graphics output area. Likewise, if you specify the HSIZE= option without
specifying the VSIZE= option, the graph is positioned at the top-center
of the graphics output area by default.