Try using the "tower.inc" file.  I was playing around with a helix form with
it a while ago and it seemed to work perfectly.  The form in my tower image
at: http://student.canberra.edu.au/~u982555/mystuff.html started out as a
regular helix. I hope this helps.

Roger
































Zack Halbrecht wrote:

> What im doing is essentially making a strand of DNA. ive got my spheres as
> molecules of A,C,G,T and a bar connecting them.  They are being generated
> by a while loop.  Its all working fine but i cant rotate them properly.
>
> i was trying to use a rotation and then a translation to get the 2 spheres
> and bar in line with the rest of them but that will only work for certain
> angles and then i would have to figure out the translation again.
>
> Anyone have a  general formula? Im looking for some sort of sinusoidal
> equation i think.  Just cant put two and two together.
>
> so if the camera was directly atop the strand of DNA and the desired angle
> was 90 degrees it would look like this
>
>      O
>       |
> 0=====0
>       |
>      O
>
> i know this is damn confusing.  if anyone wants to see the source let me
> know and ill email it.
>
> Thanks so much
>
> --
> Zack Halbrecht
> Head Procrastinator
> Rutgers University
> zac### [at] edenrutgersedu

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