IntelliTech Intellibar M412, Справочное руководство, Страница: 151 / 187

9-38 HP PCL Graphics Commands
Table 9-20 Pen Up Command Parameters
Parameter Format Functional Range Default
X, Y coordinates/increments currents units -2
30
to 2
30
- 1 None
This command emulates a pen plotter that must raise the pen to prevent drawing stray lines
on the page.
The printer interprets the parameters as follows:
No parameters - Prevents drawing subsequent graphics commands (unless the command
contains an automatic pen down).
X, Y coordinates - Moves to the point(s) specified. You can specify as many X,Y
coordinates as you want. When you include more than one coordinate pair, the printer
moves to each point in the order given.
Coordinates are interpreted in current units: as user-units when scaling is on; as plotter
units when scaling is off.
Whether the PU command uses absolute coordinates or relative coordinates (increments)
depends on the most recently executed PA or PR command. If no PA or PR command is
issued, absolute plotting (PA) is used.
Relative Arc Three Point (RT)
RT X
incr inter ,
Y
incr inter ,
X
incr end
Y
incr end
[, chord angle ;]
This command draws an arc segment using relative coordinates from a starting point,
through an intermediate point, to an end point. Use the RT command when you know these
three points of arc.
Table 9-21 Relative Arc Three Point Command Parameters
Parameter Format Functional Range Default
X
incr inter,
Y
incr inter
currents units -2
30
to 2
30
- 1 None
X
incr end,
Y
incr end
current units -32768 to 32767 None
chord angle clamped real 0.5
o
to 180
o
5
o
The RT command uses the current pen location and two specified points to calculate a
circle and draw the appropriate arc segment of its circumference. The arc starts at the
current pen location using the current pen, line type, line attributes, and pen up/down
status. You specify the intermediate and end points. After drawing the arc, the pen location
remains at the end of the arc.