Finally we get to the models we are most interested in. (R)(A)(Q)(T)(D) toroids. The Quasiconvex property and the Tunneled property will lead us to some convex polyhedra that can be drilled by removing other polyhedra (excavations).
Disclaimer: These pages are dedicated to B.M. Stewart. They are intended to be used by readers of his book to better illustrate his ideas in three dimensions. His book has tons of information that I do not intend to represent here, and I highly encourage anyone interested in this subject to buy the book. If you like my illustrations, please let me know. And if you are interested in a particular Stewart Toroid being modeled, please let me know and I will do what I can.
Thanks also to Robert Webb for his very cool "Stella" program. I have used it extensively to generate VRML files for my site. It is a great tool for rapid exploration of augmentations and excavations of polyhedra (among other things).
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Link to this page as http://Polyhedra.Doskey.com/Stewart05.html
Alexander's Polyhedra, (c) 1998-2006, Alex Doskey