Mapping Your Image - OKIDATA 120 Handbook

When the OKIDATA 120 prints standard text, it receives an
ASCII code from your computer that is assigned to a partic-
ular character. CHR$(65), for example, represents the "A"
character. But when you enter graphics mode, ASCII codes
no longer stand for characters ... each code now represents
a unique pattern of dots in a single column, seven dots
high. For example, the CHR$(65) code prints this dot
pattern:
Mapping your image
To program graphics, you must first map your image as a
series of dot columns. We'll use a square here as an '
example:
0 0 0 0 0 0 0
0
0
0
0
0
0
0
0
0 0
0 0 0
0 0 0 0
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