HP 5961-0509 manual Example Using the BR Command Bezier Relative, Prpd, BR0,3048,4572,0

Bezier curves are drawn with the current pen, line type, current line attributes, and pen-state (up/down). The curve is clipped to the hard-clip limits and the soft-clip window. Following the command execution, the current pen position is updated to the end point of the curve.

The BR command is allowed in Polygon Mode. (The first chord after PM1 is not treated as a pen-up move.)

zX1, Y1... — Specify the location of the second (X 1, Y1), third

(X2, Y2), and fourth (X3, Y3) control points, in relative increments (relative to the first control point).

Table 20-12 Example: Using the BR Command (Bezier Relative)

ECE	Reset the printer.
EC%ØB	Enter HP-GL/2 mode.
IN;	Initialize HP-GL/2 mode.
SP1;	Select pen number 1. Even though
	there is no physical pen, the SP
	command must be used to enable
	printing.
PA1016,5080;	Specify the absolute point (1016,5080)
	as the starting location.
PR;PD;	Specify relative plotting and pen down.
BR0,3048,4572,0,	Draw a Bezier using the current position
3556,2032,-508,1016,	(1016,5080) as the first control point.
2540,508,2540,-5080;	The specified control points for the first
	curve are (0,3048), (4572,0), and
	(3556,2032). The second curve uses
	the last control point of the previous
	curve as the first control point
	(3556,2032). The other three control
	points for the second curve are
	(-508,1016), (2540,508), and
	(2540,-5080).
EC%ØA	Enter the PCL mode.
ECE	Send a reset to end the job and eject
	the page.

20-20The Vector Group EN