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I haven't figured out how to find the exact center of the column yet.
Maybe I will think better in the morning.
--
Dan Johnson
http://www.geocities.com/zapob
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Attachments:
Download 'tetrahelix.jpg' (54 KB)
Preview of image 'tetrahelix.jpg'
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Headache working that out? I love the result.
Alf
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Alf Peake wrote:
>
> Headache working that out? I love the result.
>
> Alf
Thinking doesn't give me headaches, just caffeine withdrawal, neck
injuries, and blows to the head. Thanks for the comment. I'm not
finished yet. I read that dna twists at exactly the same rate as a
tetrahelix, and I think they might look cool together. I also want to
play with changing edge lengths, but I don't think I can make it work
until I figure out some more math.
--
Dan Johnson
http://www.geocities.com/zapob
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> I read that dna twists at exactly the same rate as a
> tetrahelix, and I think they might look cool together.
How exactly is that measured, ratio of length of one cycle to the
radius?
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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David Fontaine wrote:
>
> > I read that dna twists at exactly the same rate as a
> > tetrahelix, and I think they might look cool together.
>
> How exactly is that measured, ratio of length of one cycle to the
> radius?
>
> --
> David Fontaine <dav### [at] faricynet> ICQ 55354965
> My raytracing gallery: http://davidf.faricy.net/
I guess. I read it in some book from Buckminster Fuller when I was
looking for info on calculating geodesics. I had to come up with my own
method. I guess the only place he puts the actual calculations is in
his patents. I tried to get a copy of his geodesic dome patent from the
patent trademark office web site, but it didn't seem to work. The way
my dome was calculated it looks ok, but I know that it isn't the
standard method. All of the struts along an edge of a icosahedron
triangle are the same length in my design. In no listing of lengths I
have found on the web is this true. When I find out how Buckminster did
it maybe I will make new versions of my geodesic functions.
--
Dan Johnson
http://www.geocities.com/zapob
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