•
TURN allows
the
heading
of
the
turtle'
to
be turned through a specified angle while
TURNlO
allows the turtle
to
be turned
to
a specific heading.
The turtle
is
turned
In
the window attached
to
the specified or default channel.
The angle
is
specified
in
degrees. A positive number
of
degrees
will
turn the turtle
anti-
clockwise and a negative number
will
turn
it
clockwise.
Initially
the
turtle
is
point
at
O~
that
is
to
the
right hand side
of
the
window
syntax:
angle:~
numeric_expression [angle
in
degreesl
TURN
[channel,] angle
TURNlO
[channel,] angle
example:
I.
TURN
90
[turn through
90°1
Ii.
TURNTO
0 [turn
to
heading
0°1
TURN
TURNTO
turtle graphics
•
FOR SERVICE MANUALS
CONTACT:
MAURITRON
TECHNICAL
SERVICES
www.mauritron.co.uk
TEL: 01844 - 351694
FAX: 01844 - 352554
•
Turns
underline either on or off
for
subsequent output
lines.
Underlining
is
in
the
current
INK colour
in
the window attached to the specified or default channel.
syntax: switch:= numeric_expression [range 0
..
11
UNDER [channel,] switch
example:
i.
UNDER
1 [underlining
on)
ii.
UNDER
0 [underlining
off]
12/84
UNDER
windows
57
To Next Page
Loading...
