Yes, you are right.
I think "rectify" may be the operation of blending the polyhedron with its dual, I can't remember if that is the right word. It certainly gives a more accurate model (and nicer) than truncation.
And yes it is augmentation not stellation. There might well be a convex core that ...
Search found 95 matches
- Sun Aug 04, 2013 1:52 pm
- Forum: Stella Forum
- Topic: Can Anybody Help Me Make A Moravian Star Please?
- Replies: 18
- Views: 107427
- Sat Aug 03, 2013 7:12 pm
- Forum: Stella Forum
- Topic: Can Anybody Help Me Make A Moravian Star Please?
- Replies: 18
- Views: 107427
- Fri Jul 26, 2013 4:54 pm
- Forum: Stella Forum
- Topic: Sacred Geometry
- Replies: 45
- Views: 475139
@3katie3.
The centre of a triangle does look lopsided when seen from the side. One extremity of the triangle, say the left, will be a corner and a long way from the centre. The other extremity, say the right, will be an edge which passes much closer to the centre. When you spin the triangle about ...
The centre of a triangle does look lopsided when seen from the side. One extremity of the triangle, say the left, will be a corner and a long way from the centre. The other extremity, say the right, will be an edge which passes much closer to the centre. When you spin the triangle about ...
- Mon Jul 22, 2013 8:13 pm
- Forum: Polyhedron Models
- Topic: How do I make this star?
- Replies: 9
- Views: 105052
- Wed Jun 05, 2013 7:53 pm
- Forum: Polyhedron Models
- Topic: Faceted Polyhedron
- Replies: 3
- Views: 63241
- Tue Apr 02, 2013 9:35 pm
- Forum: Polyhedron Models
- Topic: How do I make this little beauty, please?
- Replies: 9
- Views: 126693
One interesting opportunity here comes from the fact that the faces come in parallel sets. On each side, one face from the small stellated dodecahedron is parallel to one from its great stellated cousin. Since these figures have opposite sides, also parallel, that makes four parallel faces in all ...
- Mon Mar 18, 2013 8:33 pm
- Forum: Polyhedron Models
- Topic: Help with MW63
- Replies: 22
- Views: 194239
Hi Peter,
The backs lie in the 20 face planes of the icosahedron. These correspond to the 20 vertices of the dodecahedron, so matching them with the 12 pentagonal faces doesn't work.
You could match the corners of each triangle to the 12 faces, which is of course the "same back and front" solution ...
The backs lie in the 20 face planes of the icosahedron. These correspond to the 20 vertices of the dodecahedron, so matching them with the 12 pentagonal faces doesn't work.
You could match the corners of each triangle to the 12 faces, which is of course the "same back and front" solution ...
- Fri Mar 01, 2013 10:13 pm
- Forum: Polyhedron Models
- Topic: Zonohedrified Crossed Heptagrammic Cupolaic Blend
- Replies: 4
- Views: 66580
- Mon Nov 05, 2012 10:03 pm
- Forum: Polyhedra
- Topic: Gilson: Polyhedra - A New Approach
- Replies: 20
- Views: 174339
- Thu Nov 01, 2012 9:00 pm
- Forum: Polyhedra
- Topic: Gilson: Polyhedra - A New Approach
- Replies: 20
- Views: 174339
- Fri Oct 05, 2012 6:23 pm
- Forum: Polyhedra
- Topic: Gilson: Polyhedra - A New Approach
- Replies: 20
- Views: 174339
OK, I have now read Gilson's book.
Sadly I can recommend it only to the most hardened polyhedron enthusiast (like me) ;) . Others will find it badly wanting.
Its approach purports to be based on symmetry, and to focus on polyhedra having a single major axis of symmetry, such as a regular prism. It ...
Sadly I can recommend it only to the most hardened polyhedron enthusiast (like me) ;) . Others will find it badly wanting.
Its approach purports to be based on symmetry, and to focus on polyhedra having a single major axis of symmetry, such as a regular prism. It ...
- Thu Sep 27, 2012 7:59 pm
- Forum: Polyhedra
- Topic: Gilson: Polyhedra - A New Approach
- Replies: 20
- Views: 174339
- Tue Jul 03, 2012 7:55 pm
- Forum: Polyhedra
- Topic: Faceted snub cube
- Replies: 13
- Views: 145960
- Sat Jun 30, 2012 3:21 pm
- Forum: Polyhedra
- Topic: Faceted snub cube
- Replies: 13
- Views: 145960
- Wed May 02, 2012 6:33 pm
- Forum: Polyhedron Models
- Topic: Construction de mes polyèdres en bois
- Replies: 7
- Views: 86414