Jaime Vives Piqueres <jai### [at] ignoranciaorg> wrote:

> On 18 Nov 2002 15:34:03 -0500 Warp <war### [at] tagpovrayorg> wrote:
> 
> >   (If you didn't know, you can easily visualize which direction does a
> > positive angle rotate an object by pointing your thumb (of the left hand
> > if you are using the left-handed coordinates) towards the positive axis
> > around which you are rotating and bend your fingers.)
> 
>   I use only this rule for all my "visualizations" when I'm writing
> scenes, and I agree with you: when you have the right hand already on the
> numeric pad, the lef-handed system is very useful. Not joking!

I think the reason I brought this up in the first place was that when
studying physics, I found it easiest to imagine a normal wood screw,
turning from x to y axis. In a right handed system, the screw moves in
the +z direction. Now I have to use my hand, as there are no left-handed
screws!

-- Kaveh

Post a reply to this message