Talk:Pyritohedron
Mathematics Redirect‑class Low‑priority | ||||||||||
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Needs a better picture! --66.93.114.130 (talk) 17:27, 11 August 2008 (UTC)
Animation
The animation could obviate the adjoining concave pyritohedron image if it did not arbitrarily(?) restrict to convex. In particular, it could include the interesting equilateral "endododecahedron" case. Also, the animation would be easier on the eyes and less jerky if driven by a sinusoid rather than a triangle wave. Both of these improvements are (too rapidly?) illustrated in http://gosper.org/pyritodex.gif . Sat 26 Oct 2013 21:16:47 PDT63.194.69.46 (talk) 04:31, 27 October 2013 (UTC)
- I made a simple fix, 1/2 second pause on start and middle frames. If you have rights to the pyritodex.gif image it is nice too. Tom Ruen (talk) 04:43, 27 October 2013 (UTC)
That helps a lot. Yes, I made pyritodex.gif and "advertised" it to the math-fun list. I hereby(?) relinquish all rights to it, but it is below Wikipedia's graphics standards, I think. I can try sprucing it up, if you wish. Bill Gosper (talk) 21:12, 30 October 2013 (UTC)
- On your animation, I admit the sinusoidal(?) motion makes me feel nervous, like an alien is going to jump out and kill me. Also I rather prefer the 8 cubic points to remain fixed, while you rescale it smaller as the dodecahedral tents rise. Tom Ruen (talk) 21:40, 30 October 2013 (UTC)
Good points. Can we get away with http://gosper.org/pyredohedra.gif, or is explaining how a stellated icosahedron is an extreme pyritohedron too much like original research?Bill Gosper (talk) 12:53, 31 October 2013 (UTC) Oops, the https://en.wikipedia.org/wiki/Great_stellated_dodecahedron article claims this is one. That should be easier to explain.Bill Gosper (talk) 14:00, 31 October 2013 (UTC)