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question about alternation

 
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perrin



Joined: 12 Sep 2009
Posts: 5

PostPosted: Sun Oct 18, 2009 7:21 pm    Post subject: question about alternation Reply with quote

[Hi, my 2nd Grade nephew Milo has some more advanced questions - thanks- Perrin]

How do I alternate polyhedra?

Also, are you going to make a stella5D?

--Milo
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robertw
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Joined: 10 Jan 2008
Posts: 395
Location: Melbourne, Australia

PostPosted: Wed Oct 21, 2009 12:47 pm    Post subject: Reply with quote

I'm not sure what you mean by "alternate". What is it you want to do exactly? Can you give an example?

Stella5D - unlikely. There's still plenty for me to do in 3D and 4D!

Rob.
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perrin



Joined: 12 Sep 2009
Posts: 5

PostPosted: Tue Oct 27, 2009 8:23 pm    Post subject: Milo's clarified question Reply with quote

[My Nephew Milo's question, thanks, -- Perrin]

What I mean by "alternate' is to facet the vertex figure of a polyhedron. If it has blank spots fill them in. If it is a compound delete all other sections (cells) until there is one cell left."
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robertw
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Joined: 10 Jan 2008
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Location: Melbourne, Australia

PostPosted: Wed Oct 28, 2009 12:48 pm    Post subject: Reply with quote

Seems there is a wikipedia page on it.

It only applies to certain types of polyhedra (ones where each face has an even number of sides). But more generally, you just want to create a faceting of an existing polyhedron. You can do that with faceting mode.

See the manual and read the Faceting Mode section and the following Faceting section.

If you just one to delete all but one part of a compound, simply select a face of the part you want to keep (Shift+Left-click) and select "Poly->Keep One Part of Compound".

Rob.
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