"Wlodzimierz ABX Skiba" wrote:
> 
> I found macro to calculate radius and center of inner circle of 2d triangle. Any
> idea for shorter version of it ? This works fine but I'm asking just for my
> knowledge extending :-) Some vector optimizations ?

Yes Wlodzimierz, vector math would be my answer...    ;)

Maybe what I wrote in this post will interest you:
news://news.povray.org/3B82F267.36412849%40hotmail.com
(My reply 1. Aug. 2001 to Mark M. Wilson's thread;
"general geometry question" )

Here's some of my further comments:
news://news.povray.org/3B82FDB9.45E83FA%40hotmail.com

And here's a link to the start of that thread:
http://news.povray.org/povray.general/17701


Tor Olav

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