General sixel graphics operation – Genicom GEK 00031B User Manual

Page 257

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GEK-00029B

5000 Series Programmer’s Manual

257

General Sixel Graphics Operation

Sixel Graphics printing consists of setting the context and attributes
for the pixels and then printing the received pixels in adjacent grid
positions. The following are essential elements of the Sixel Graphics
print process.

Selection of Sixel Graphics using the Sixel Printer Control String.

Setting of the graphics active position and left margin.

Advancing the graphics active position to the next horizontal grid
position.

The String Terminator (ST) control character causes the printer to
exit Sixel Graphics mode and return to text mode.

A Graphics Carriage Return (DECGCR) command or a Graphics New
Line (DECGNL) command moves the graphics active position to the
graphics left margin. The Graphics New Line command also moves
the graphics active position down to the next graphics line (six
vertical grid positions below the current active position.)

Horizontal and vertical directions follow the text orientation. The
printer images sixels from left to right, top to bottom.

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