----------
CHAPTER
3
PROGRAMMING
NOTE: Take a minute
to
think through the restrictions
on
the
ESC
Y and
ESC
Z
graphics modes. Basically, it just means that you cannot print a horizontal line with
fully overlapping dots.
Even
with the skips, dots on the same row are close enough
together that
a line will appear solid.
You
can, however, print dots in other rows. This
allows you to create much finer curves and diagonal lines
in
these high-density
modes.
2.
Number
of
Columns
The "start graphics" code
is
followed
by
two
numbers
telling
the
printer
how
many columns to print. For
ease
of
reference, call these
numbers
nl
and n2.
To find the value
of
these numbers, determine
how
many columns
you want to print, then
divide
it
by 256. The value
of
n2
is
the in-
teger portion
of
the quotient, and the value
of
n 1
is
the remainder
expressed
as
an
integer.
63
To Next Page
Loading...
