Oce XDL Reference Manual page 111

Print Processing
PORTRAIT
A printout is designated as a portrait-printout, when that line on which the characters are
added from left to right for human reading is a parallel to the short edge [1,2,3].
In PMODE= PORTRAIT the PORTRAIT -rules are applied. These are the following (the list
may or may not be complete):
in OVERPRINT= PRINT|PRINT2|IGNORE the characters are bottom-of-the-line-adjusted
the character-positioning is bottom-of-the-line-oriented
the horizontal adjustment for CME-CONSTANT is PORTRAIT-specific
in case of 'printing off the page' portrait-rules are applied
if using landscape-fonts, the characters are put next to each other but the characters itself
are rotated by 90°
A29247-X4-X-8-7672
Summary of OUTPUT Command Parameters (Continuation)
103