"Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmailcom> wrote:
> "Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmailcom> wrote:
> > "Bald Eagle" <cre### [at] netscapenet> wrote:
> >...
> >
> > Hi Bill
> >
> > It's a useful exercise you've started here.
> >
> > You may also want to have a look at the ReorientTransform() macro here:
> > https://github.com/t-o-k/Useful-POV-Ray-macros/blob/main/vectors.inc
>
>
> And for axis rotate, this is relevant:
>
> https://github.com/t-o-k/Rodrigues-rotation-formula
>

Some more here:

From: Tor Olav Kristensen
Subject: Rotation around an arbitrary axis
Date: 2001-11-29 19:23:16
https://news.povray.org/povray.advanced-users/thread/%3C3C06D0B8.9DE747A0%40hotmail.com%3E/

- and here:

https://github.com/t-o-k/scikit-vectors/blob/master/skvectors/cartesian_3d_vectors.py

--
Tor Olav
http://subcube.com
https://github.com/t-o-k

Post a reply to this message