Plotting Sequences - HP 262SA Reference Manual

Graphics
PLOTTING SEQUENCES
All vector plotting sequences are initiated by
Ec
* p. Table D-6lists the commands that can be
used within a plotting sequence.
Table D-6. Graphics Plotting Control Functions
Ec
*
p <parameters and data>
PARAMETER
a
b
c
d
e
f
9
h
z
DESCRIPTION
lift the pen
lower the pen
use graphics cursor position as new point
draw a single dot at the current pen position
set relocatable origin
=
current pen position
use ASCII absolute format
use ASCII incremental format
use ASCn relocatable format
use binary absolute format
use binary short incremental format
use binary long incremental format
use binary relocatable format
NOP/synch
Mter
Ec
* p has been sent, the drawing format is normally specified before data is sent.
If no format is specified, ASCII absolute is assumed. There is no explicit draw vector command.
When enough parameter bytes to specify a single end point have been received (the number
depends on the format used), the pen is moved from its current position to the new end point.
If the pen is down, a vector will be drawn. If the pen is up, the pen is moved to the new point
(without drawing a vector) and lowered. The new end point becomes the current pen position.
D-26