Oce XDL Reference Manual page 107

Print Processing
Coordinate-Systems
Now a coordinate-system is laid over a page, where the Y-axis is laid over the leading edge
and the X-axis is laid over the left edge with an origin in the upper left corner. The y-values
increase from left to right, the X-values increase from top to bottom. The following figure
clarifies this with a USLETTER-page.
The paper is now defined as a box with an y-extent, which defines the paper-width and an
X-extent, which defines a paper-height and an origin in the upper left corner.
That edge, which defines the leading/trailing edge coincides with the y-axis in the coordi-
nate-system. This direction is also defined as 'XEROX Scan Direction'.
Attention:
A29247-X4-X-8-7672
Summary of OUTPUT Command Parameters (Continuation)
the Y is an X
Xerox AFP
(Y is used in the PAGESIZE-option,
Xerox
X is used in the PGD-structured field)
AFP
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