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Use GRAPHICS
sets
graphics
output attributes.
Syntax
GRAPHICS
[#stream-numberl
if,)
attribute)...
or: FILL [STY LE) (WITH)
fill-style
or:[LINE) WIDTH
line-width
or: [LI NE) STYLE
linestyle
or: [LI NE)
START
line-start-style
or: [LINE) END
line-end-style
or: MARKER
markernumber
or:
MARKER
SIZE
marker-size
or:
COLOUR
colour-number
or: COLOR
colour-number
or: MODE
write-mode
where
cursor-type is
an
integerexpression,
giving a value inthe range 1.3.
Use GRAPHICS...RESTORE
turns on oroff window contents restore.
Syntax GRAPHICS
[#stream-number[, .11
RESTORE
truthvalue
GRAPHICS..UPDATE
(see Chapter 12)
Use GRAPHICS,..UPDATE forces graphics output
to be
acted on.
Syntax GRAPHICS
[#stream-numbett’, II
UPDATE (NEW)
HEADING
(see Chapter 12)
Use HEADING is a function which returns
the current heading.
Use HEOS isa function which converts an integer value to a string of hexadecimal
where
argumentand mn-digits
are
integer-expressions; mm-digits
must give a value in the range
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