Computer
Graphics
Operation
Manual
----------TRS-BO
®
----------
Appendix
AI
BASICG/utilities
Reference
Summary
Argument
ranges
are
indicated
below
by
special
letters
and
words:
Y..
action
background
border
end
Start
switch
tiling
~
ar
1*
b
B
BF
c
n
£
r
x
is
a3~ingle-precision
floating
point
number
>
~.~
(to
l~
) •
is
an
integer
expression
of
either
~
or
1.
specifies
a
box.
specifies
a
shaded
box.
is
an
integer
expression
of
~
or
1.
is
an
integer
expression
from
~
to
2.
is
an
integer
expression
from
~
to
3.
is
an
integer
expression
from
~
to
639.
is
an
integer
expression
from
~
to
639.
is
an
integer
expression
from
~
to
239.
is
either
AND,
PSET,
PRESET, OR,
or
XOR.
is
a
string
of
either
~
or
1.
is
an
integer
expression
of
either
~
or
1.
is
an
expression
from
-6.283185
to
6.283185.
is
an
expression
from
-6.283185
to
6.283185.
is
an
integer
expression
of
~
or
1.
is
a
string
or
an
integer
expression
of
~
or
1.
is
an
integer
expression
of
~
or
1.
Draws
a
circle,
or
point.
CIRCLE(15~,15~),4~,1",.6
CIRCLE(-5~,-5~),2~~
CIRCLE(!LY)r,c,start,end,ar
ellipse,
semicircle,
arc,
CIRCLE(l~~,1~~),25,1
CIRCLE(l~~,1~~),1~~,PI,2*PI,5
CLS
Clears
the
Text
Screen
and
video
memory.
CLS
SYSTEM
"CLS"
CLR
Clears
the
Graphics
Screen.
CLR
GCLS
Clears
the
Graphics
Screen
and
memory.
GCLS
CMD
"I","GCLS"
l~~
CMD
"I","GCLS"
---------ltadlOlllaell---------
-117-
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