very cool.  could be used for curved hand rails, snakes going over
terain, or something like that.  is it random? or do you have control?

Tor Olav Kristensen wrote:
> 
> Here is the result of my recent experimenting
> with lathe macros (cubic_spline).
> 
> One macro generates the basic 2D lathe co-ordinates
> (as in my postings to this news group 23. May
> and 25. May).
> 
> And then some other macros I made recalculates
> these co-ordinates for further "twists" and does
> all the necessary cuts, "tilts" and translations.
> 
> I believe that the re-calculated lathe co-ordinates
> can also be used and for prism shapes connected
> to such lathe shapes. (I have not done this yet.)
> 
> Any comments or suggestions ?
> 
> Tor Olav
> --
> mailto:tor### [at] hotmailcom
> http://www.crosswinds.net/~tok/tokrays.html
> 
> Btw: This twisted lathe has a "minor radius"
> defined by this function:
> 
> 2/3*cos(4*Phi) - 1/3*sin(6*Phi - pi/2)
> 
>   ------------------------------------------------------------------------
>  [Image]

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