HP 7470A Interfacing And Programming Manual page 198

AR*The Arc Relative Instruction
CA
CI*
CP
Page 3-19
AR X-increment,Y-increment,arc angle(,chord angle);
Purpose: Draws arc of specified number of degrees with specified
smoothness; centered relative to current pen position,
using current pen status (up or down).
Parameters: X— and Y-increments — integer, in plotter units unless
scaling in effect; then in user units.
are angle — integer, negative value specifies clockwise
are, positive value specifies counterclockwise arc.
chord angle —integer, defines arc smoothness in degrees.
Default is 5 degrees.
The Designate Alternative Character Set
Instruction
CA n( ;)
Purpose:
Page 5-4
Designates the alternate character set.
Parameter: integer 0 through 4; default set 0.
The Circle Instruction
CI radius(,chord angle);
Page 3-12
Purpose: Draws a circle of specified radius centered at current pen
position.
Parameters: radius —integer, in plotter units unless scaling in effect;
then in user units. Starting point at 0 degrees with
positive parameter; 180degrees withnegative parameter.
chord angle — integer, defines circle smoothness in de­
grees. Default is 5 degrees.
The Character Plot Instruction
CP spaces, lines;
Page 5-13
Move the pen the number of spaces and lines specified.
spaces — decimal, 2 -128 and < 128, number of CP
spaces, positive value moves pen in current label direc­
tion, negative value moves pen in opposite direction.
lines —— decimal, 2 -128 and < 128, number of CP lines,
positive value moves pen up, negative value moves pen
down in relation to current label direction.
Purpose:
Parameters:
Omitting parameters causes carriage return, line feed.
*Available only with RS-232-C plotters that have the serial prefix number 2308Aor
higher.
B-2 INSTRUCTION SYNTAX