>> I especially love the way the bar widths don't appear to be multiples 
>> of each other. I almost wonder if the image has been scaled down by 
>> rounding each bar to a whole number of pixels, so some "thin" bars are 
>> 3 pixels and some are 4... It's very districting!
> 
> It is less surprising once you know that Code39 doesn't have fixed bar 
> width ratios - just "narrow" and "wide" black and white bars.

It's still confusing to have several apparently different bar widths 
which are actually supposed to be "the same". The reader might accept 
it, but for a visual example, it's sucky.

> Why not get one of those many Code39 TrueType fonts out there?
> 
> ... or write a POV-Ray SDL script to generate barcode images :-)

Why use SDL when you can use PostScript, the language of the laser 
printers? ;-)

I have in fact just written a working code-128 reader/writer today. It 
only deals with bit-sequences, but I guess the next step is to handle 
actual pictures...

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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