Pen control and plot instructions – Brother HL-2170W User Manual

Page 356

Advertising
background image

CHAPTER 9 HP-GL - 8

IW - Input window

IW [ X

1

, Y

1

, X

2

, Y

2

] [;]

X1-Window lower left X coordinate

Y1-Window lower left Y coordinate

X2-Window upper right X coordinate

Y2-Window upper right Y coordinate

This instruction sets the window inside which plotting can be performed.

Graphic units are always used.

Coordinate values for X1, Y1, X2 and Y2 are integer numbers from 0 to 32,767.

The order of the pairs (X1, Y1) and (X2, Y2) may be reversed with no change in the window created: "IW

X1, Y1, X2, Y2" is identical in effect to "IW X2, Y2, X1, Y1".

Using this instruction without a parameter field releases any previous limitations on the plot area.

(X2,Y2)

(X1,Y1)

Window

Print paper

RO - Rotate coordinate system

RO [q][;]

q : Angle in degrees through which the coordinate system is rotated.

This instruction rotates the coordinate system.

A value of 0 or 90 must be used for q.

Using this instruction without a parameter field sets the rotation of the coordinate system to 0 degrees.

PG - Page feed

PG [;]

Executes a page feed

After page feeding, the cursor position return to the home position (0, 0).

3.3.

Pen Control and Plot Instructions

Instruction Function
PU Pen

Up

PD Pen

Down

PA Plot

Absolute

PR

Relative Coordinate Pen Move

AA

Absolute Arc Plot

AR

Relative Arc Plot

CI Circle

Advertising