Bryan Valencia wrote:
> I'd like to find a parabolic looping macro, where I can give 2 endpoints and
> a "stretched" length.  maybe something like this:
>  
> #macro loop(P1, P2, Stretched, SegmentCount, SegmentObject)
>  
> ...where P1 and P2 are the endpoints, StretchedLength is how much "string"
> there is, and the "segments" would be spaced evenly along the spline like
> the links of a chain.

Maybe you can reuse the math behind my arch macro:

http://www.b0n541.net/povray/povmacro.html

Just my two eurocents,

Bonsai

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