IBM 6400 Programmer's Reference

Using Images and Graphics
Using Images and Graphics
Graphic material—charts, engineering drawings, and line drawings—can be sent
to the printer as IM Images or Graphics.
In all-points-addressable printing by the printer, a page can consist of 120 by 144
pels per inch or 180 by 144 pels per inch, each one of which is individually
addressable. These addressable points are called picture elements or pels.
IM Images
Images are figures on the page created by explicitly specifying each pel in the
figure. There is one bit of image data per pel, so a large quantity of data is
needed to create an image.
IM images are uncompressed raster data images. A raster pattern is composed
of a series of pels arranged in scan lines.
Graphics
Graphics are line drawings created from separate lines, arcs, and markers. With
vector graphics, only control information such as the end points of a line are
sent to the printer. This process lets you create complex figures with a
minimum of data.
Figure 5 illustrates how Vector Graphics (the space shuttle) and Image (the
sailing ship) commands can be used to generate graphic material. For details
about these commands, see Intelligent Printer Data Stream Reference, S544-3417.
For details on graphics commands, see IBM Data Stream and Object
Architectures Graphics Object Content Architecture (GOCA) Reference,
SC31-6804.
Rastor Image
Vector Graphic
Figure 5. Graphic Material Created by Image and Graphics Commands
6 6400 IPDS

IBM 6400 Specifications

General

Brand	IBM
Model	6400
Category	Printer
Language	English