In article <3AA13076.EC62EAE7@inapg.inra.fr>, Gilles Tran 
<tra### [at] inapginrafr> wrote:

> I tried using spheres for symbols, but as the output looked
> sometimes like a squashed bug, I turned to pierced discs instead...

Why not torii?
I've done a couple graph macros before...not this kind though, just 
graphing a function. And not very advanced, either...maybe I'll drag it 
out and work on it some more.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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