[BRLTTY] Generate visual Braille

[Raphaël POITEVIN]

Thanks for your answer.

Dave Mielke <Dave at mielke.cc> writes:

> It depends on the printer. If it supports the 256 Unicode braille patterns then
> that'd be the best way to go. If it doesn't then you need to use some standard,
> e.g. BRF, which uses ASCII characters to represent braille patterns. If you
> want a sighted person to be able to look at his/her screen and see braille then
> the first approach - using Unicode braille patterns - is what you need
> to do.

Actually, I would like to generate a file, as a sighted person would
generate it with Inkscape for instance, based on a True Type Braille
font. That file would be used in any situations: 3D printing, deep
embossing (not Braile embosser) or swell embossing. With that kind of
software, they can set the fot size (I know there is a tolerance
depending on the size of the support, 24pt, 23.5pt).
>
> Brltty comes with a command called brltty-ctb that can do what you're looking
> for. You pass text to its standard input, and it writes braille to its standard
> output. You use its -c option to tell it which contraction table, e.g. -cfr, to
> use. By default, it writes Unicode braille patterns. If, however, you want to
> use some other standard then you can use its -t option, e.g. -tbrf, to specify
> which character to braille mapping you want to use. It has other options, the
> most important of which is -h (help). Also, of course, you can always ask more
> quetions here.

That's a fantastic tool! I did'nt kwon it!
I tested with -cfr-integral. The renderer was totally correct!

Regards,
-- 
Raphaël POITEVIN
www.leclavierquibave.fr