HP 5961-0509 manual Drawing Lines, Relative points, 20-2The Vector Group

Table 20-1 The Vector Group Commands (continued)

PA,	Plot Absolute	Enables movement to
		absolute coordinate locations
		(with respect to the origin
		[0,0]).
PD, Pen Down		Lowers the "pen" to the page.
PE,	Polyline Encoded	Increases throughput by
		encrypting common HP-GL/2
		commands.
PR,	Plot Relative	Enables movement relative to
		the current pen location.
PU,	Pen Up	Lifts the pen from the page.
RT,	Relative Arc Three Point	Draws an arc from the current
		pen location through two
		relative points.

Drawing Lines

You can draw lines between two points (X,Y coordinate pairs) using the PD (Pen Down) command and a series of absolute and/or relative coordinate pairs. The printer draws only the portion of the line that falls within the effective window.

Note	When using HP-GL/2 to draw lines, you can increase your printer’s
	throughput by using the Polyline Encoded (PE) command to send
	coordinates. The PE command requires that you convert coordinates
	from decimal to base 64 or 32. This conversion especially increases
	throughput when using a serial interface. The PE command, with its
	parameters, is used in place of the PA, PD, PR, and PU commands.

20-2The Vector Group EN