Positioning The Graphics Window In The Graphics Object Area; The Graphics Object Area On The Physical Medium - IBM 6400 Programmer's Reference Manual

Graphics Command Set
Figure 15. The Graphics Object Area on the Physical Medium

Positioning the Graphics Window in the Graphics Object Area

As mentioned previously, the graphics window can be any size within the
graphics presentation space limits. The graphics object area size can be the
entire physical Medium or a portion of the physical medium
The Write Graphics Control command, described in detail in "Write Graphics
Control (WGC)" on page 83, specifies the mapping of the graphics window to the
graphics object area.
The term mapping refers to the transformation of an abstract space into its size
and position on the physical medium. There are three ways to map the abstract
space. They are scale-to-fit, center-and-trim, and position-and-trim mapping.
These mapping methods are described in detail in "Area Mapping Control
Options" on page 88.
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6400 IPDS