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Note: If you don't understand how the numbers were determined,
refer to Figures 6-1 and 6-2.
It takes a while for your system to compute the data so be patient.
Your printout should look like this:
Run the program once more, but this time use Double-Density
mode. When the program asks you for a control code, enter
the rest of the data exactly as you did with Single-Density mode. You
should achieve the following result.
If your printout does not look like this one, be sure you are entering
the correct values for n
data is sent to the printer than it was told to expect, it will interpret
values as character codes,
Graphics Programming Tips
The information in this section will provide you with a few ele-
ments to keep in mind when programming in graphics.
Line spacing
To print figures taller than 7 or 8 dots in Graphics mode, the print
head must make more than one pass. If you use the default 12-dot (1/6
inch) line spacing, the print head will leave gaps between the graphics
lines, just as it does between the text lines. To avoid such gaps in your
patterns, adjust the line spacing to 8-dot with ESCape"A"CHR$(8)
and print consecutive lines until the figure is complete.
ESCape "A"CHR$(n), where n represents n/72-inch, changes the
distance that a line feed covers to n dots. The ESCape "A"CHR$(n)
command sets the line spacing to n/72-inch if the n is any number
from 0 through 85. If n is between 85 and 128, the line spacing
85/72-inch.
and n
. If the values are not correct, and more
1
2
Enter
L.
is
47
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