HP Integral Personal Computer Servisní příručka stáhnout pdf (Strana 18)

Graphics Window

Figure

2.2

Size

of

the

Graphics

Window

The BASIC

graphics

window

is a view

into

the

graphics

buffer. The graphics

buffer

is a 512 by 255 array

of

bits

in

memory.

When

plotted

on

the

display, this corresponds to

roughly 2.8 dots

per

millimeter

over

the

entire

18

by

9

cm

display. The size of

the

graphics

window

is initially 162

mm

by

67 mm. But like

other

windows, its size

can

be

changed

with

the

j§t~tl<;":;

(@)

function key

and

moved

with

the

;:::·;MQi~~.:

(CIT)}

function key (both

on

the

graphic

window's

system

menu). The size of

the

graphics buffer

and

the

initial

position

of

the

graphics

window

are illustrated below.

r---------------------------l

I Graphics Memory Buffer I

I 18 x 9 cm I

Graphics

Window

I

I

I

I

I

I

I

I

I

I

L-

________________________________________

~

__

~

Integral

PC

Specifics

2-9

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