The Hp-Gl Graphics Window; Units; The Scaling Points P1 And P2; Scaling - Brother HL-1050 Technical Reference Manual

2/19/04
5.

THE HP-GL GRAPHICS WINDOW

5.1.

Units

When you first enter graphics mode, the prevailing coordinate system has its origin in the bottom left hand
corner of the graphics window and has x- and y-units of 1/1016".
the axes into more convenient units.
5.2.

The Scaling Points P1 and P2

Many instructions use two reference scaling points,
top right hand corners of the graphics window respectively.
relative to the graphics window,
5.3.

Scaling

You can easily scale images up or down by increasing or decreasing the distance between P1 and P2.
can do this both with existing images that are to be imported and with images that are generated by a string of
HP-GL and HP-GL/2 commands, identical commands can be used to create the same image in different sizes.
5.4.

Transformation

You can transform images horizontally or vertically by changing the relative positions of P1 and P2.
can do this both with existing images that are to be imported and with images that are generated by a string of
HP-GL/2 commands.
The size of the graphics window remains unaltered.
P1 and P2.
You can alter the position of these points
or relative to one another, by using the IP or IR commands.
CHAPTER 4 HP-GL/2 - 10
Using the SC command you can divide
Initially these are in the bottom left and
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