4D Compounds from verf

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ndl
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4D Compounds from verf

Post by ndl » Tue May 14, 2019 6:49 pm

I'm having inconsistency in being able to create 4D compounds from compound verf. Sometimes it works and sometimes not even from the same verf, for example the compound of 2 icosahedra should create a compound of 10 ex, but I was only able to do that once and now it doesn't work. Also 2 dodecahedra verf should create a valid 4D compound as well as facetings thereof, but I have not gotten any of those to work at all. Thanks for your help.

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robertw
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Re: 4D Compounds from verf

Post by robertw » Wed May 15, 2019 1:24 am

I was happy to get vertex figures to work for all 1849 uniform polychora and a bunch of scaliforms, and even some compounds.

But yes, compounds are tricky because there's often multiple ways to match at each vertex, and if you take the wrong branch it can continue infinitely far without ever connecting up again.

Maybe some day I'll try to improve it, but it would probably be better to deal with compounds in another way. The ones where components don't share vertices could never be done with vertex figures anyway.

ndl
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Re: 4D Compounds from verf

Post by ndl » Sun May 19, 2019 2:35 am

If I take the compound of 10gax included with Stella4D, choose the vertex figure, press convert to base model, then try to create Uniform 4D it doesn't work. So what is the way you created the original file that allows it to work?

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robertw
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Re: 4D Compounds from verf

Post by robertw » Sun May 19, 2019 5:04 am

Hmm, I don't remember, but could just come down to what order the faces are defined in, which causes it to grow each vertex in a different order.

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