Printronix T5000R - Manual (Page 20)

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Chapter 2 The IPDS Emulation
The Graphics Command Set
The following commands are used to present graphics in a page, a page
segment, or an overlay.
Write Graphics Control (WGC)
Byte D684 Flag CID Graphics Area
Count Position;
Graphics
Output Control;
Graphics Data
Descriptor
WGC specifies the graphics block position, size and orientation; it specifies
the graphics presentation space window size and location inside the graphics
presentation space; and it defines how the window will map into the graphics
block.
Write Graphics (WG)
Byte D685 Flag CID Begin Segment
Count Introducer and
drawing orders
The WG command follows the Write Graphics Control command and contains
information about the graphics presentation space. This data is referred to as
drawing orders.
Bar Codes
Bar codes contain information that can be read by optical scanners and are
widely used.
A bar code resides in a bar code presentation space, which is mapped to a
bar code block that exists on the logical page. This block can be the same
size, larger, or smaller than the bar code presentation space.
The entire bar code presentation space must be mapped to the bar code
block; you cannot trim and cut any of the bar code presentation space.