... I was asked about the programs to make these animations: It is just a basic Python script to output the model stages of a single chain in OFF format, and...
... I see that he takes the circumferential polygon and turns them into complex polygons --as he so states-- and thanks for origami nolid links. ... Yours are...
Hi All I have been trying to make my kaleidocycle program more general and work using a pair of edges of any polyhedron as hinges. The maths has proved a bit...
I am impressed, and did't know that one could hinge tetrahedrons together like that and refold them into a spirals, but then again I knew that tetrahedrons...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Polytopia group. File : /Rhombic...
Polytopia@yahoogroups...
Oct 6, 2006 2:18 am
1266
Hi Craig ... It is possible to form a (possibly degenerate) helix from any polyhedron having two congruent polygons as faces (call them A and B). You just...
... Linking up with the isometries discussion... Take three non-collinear vertices of face A call them A1, A2 and A3, the corresponding vertices of B are B1,...
Hi Adrian & all: I've been enjoying your posts on polytopia for a while now; great info and imagery; much appreciated! (I also shared one of Adrian's recent...
Hi Alan ... "More than one geometry text has claimed that tiling 43433 has a right- and left- handed version." In The Geometrical Foundation of Natural...
yes Allan they make great seamless textures It was fun to make and more are planned I've been searching for a group like this Thanks for your comment Craig...
... The reason it is not enantiomorphic is because the square tiling is regular and self-dual. Shrink the square tiles a little and let their vertices ...
Hi Bruce ... Do you have a link to the bulletin? I would be interested to read it. ... If you can't find one maybe you could find a model in another format and...
I was wondering about some of the acceptable file formats that are used here to upload in the Files section. Does anyone upload VRML files or the related X3D?...
Hi Craig ... I have various thoughts on this as a share a lot of files. I don't use the Yahoo Groups file areas any more since they closed them to public...
Hi Adrian Thanks for commenting on the Great Dodecahedron file. All was gererated in Turbocad v9 Pro. The Great Dodecahedron was formed by sectioning a...
Jeez, Kirby and Dick! What makes you guys think anybody else out here is interested in your sniping back and forth?! I hadn't checked my mail in a couple of...
Hi Adrian In reference to your observations, I should explain a little further that the Great Dodecahedron is contained in a glass icosahedron with metal...
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