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lines, but no dots can overlap. In low-speed double density dots can
be placed on vertical lines and they can overlap.
Now look at
should point you in the right direction for your own designs.
Although the top pin (value
design, this exercise uses only seven pins (values
because the graphic has twenty-one rows-using only seven pins pro-
duces three lines of seven rows each.
After plotting all the dots as in Figure
bers for each pin pattern by dividing the design grid into separate print
lines. For the arrow design, the grid was divided into three lines,
dots high. Then each column was examined and the sums of the
seven
pin values determined. This process for the first line is shown in Figure
The pin values are on the left side and the sums are at the bottom
8-5.
of each column.
Those of you who have read the previous chapter will
signing graphics is much like designing user-defined characters.
figure designed for high-speed double density. It
the
Figure 8-4. Arrow design
can be used in any graphic you
128)
you calculate the num-
8-4,
This was done
l-64).
each
see that
de-
63
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