[PLUG] Computational Geometry

[Ross Brattain]

Aj Lavin <aj at haightmail.org> writes:

> rotation of the object, together a euclidean transformation. The
> rotation might best described as a 3x3 matrix, the columns of which
> are the axes of the object. The translation can be a 3 element vector.
> 

If you use a 4x4 matrix you can represent both rotation and
translation together.

http://www-scf.usc.edu/~akotaobi/gptut13.html

-ross