Hello,
Here are some remarks about graphing.
First let me say that there are two projects here:
a calculator supporting graphing capabilities and a braille
graphing utility.
Steve Jacobson raises a valid concern.
The graphing utility should have the flexability to support high
resolution graphics. Along his line of thinking,
what should an ideal braille graphing utility do? We can
fold all our ideas in as we go on.
Speak out.
What would a braille graphing utility do for you?
How would it help you present audio/visual aids?
Which features would help you teach and which would help you
learn?
The immediate design goal is a braille graphing utility that
supports graphing on the braille blazer. The features implemented
first will be scatter, line, and bar graphs. The calculator
program will first support scatter and line graphs. Of course,
it will create files readable by the braille graphing utility, too.
Other braille graphing utilities have failed in that
they provide no simple way to manipulate a graphic.
They come with no C code and no accessable graphic format.
Graphic files are either proprietary,binary or emboss ready.
They don't parse readily available formats like
tab-delimited ASCII from excel.
For the success of the blind who use it,
C code must accompany the braille graphing utility
and that the braille graphing utility provide ASCII text file output
in a variety of ways.
Comments?
John
John A. Miller jamiller@qualcomm.com
(619) 658-3876
member, National Federation of the Blind
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