"Bald Eagle" <cre### [at] netscapenet> wrote:
> "Kima" <nomail@nomail> wrote:
> > I tried to make a simple circle by bezier_spline,
>
> IIRC, you can't do it with a single spline, but can append 2 semicircle
> approximations.
>
> See if this helps any, and see if LeForgeron's wiki page helps any.
>
>
https://news.povray.org/povray.general/thread/%3Cweb.5c47356c36095c6fbe7517870%40news.povray.org%3E/
>
> http://wiki.povray.org/content/User:Le_Forgeron

I still don't understand why povray draws berzier curves this way.

Mathematically, the bezier curves of these points create a circle. See this
image
https://ibb.co/YykPGPM

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