1852 - Setut
1853 - Getut
1854 - Pecuexidfap
1855 - Pecuexdap
Search found 49 matches
- Wed Nov 18, 2020 1:10 pm
- Forum: Polyhedra
- Topic: New Uniform Polychora
- Replies: 15
- Views: 49929
- Wed Nov 18, 2020 9:08 am
- Forum: Polyhedra
- Topic: New Uniform Polychora
- Replies: 15
- Views: 49929
Re: New Uniform Polychora
Here are stella files generated by _Geometer of various finds in the pecuexdap regiment, thought you might like these. There's even one with a convex verf.
- Wed Nov 18, 2020 9:03 am
- Forum: Polyhedra
- Topic: New Uniform Polychora
- Replies: 15
- Views: 49929
Re: New Uniform Polychora
Here is a zip file containing the 6 new uniforms and several scaliforms and compounds. It also contains the some of the pseudouniforms generated by blending an odho verf with a sishi member. I was able to tell the odho blends weren't truly uniform by viewing cross sections vertex-on from different v...
- Mon Nov 03, 2014 8:53 am
- Forum: Stella Feature Requests
- Topic: Move Part of Compound Feature
- Replies: 0
- Views: 50378
Move Part of Compound Feature
One feature that would be quite useful would be the ability to rotate and move a part of a compound. This could be used to produce interesting arrangements. Lets say you augmented several polyhedra together, keeping the coincident faces to turn it into a compound, then with this feature you could mo...
- Thu Oct 15, 2009 12:47 pm
- Forum: Stella Forum
- Topic: pentachoron and icositetrachoron
- Replies: 2
- Views: 16409
- Fri Feb 13, 2009 10:44 pm
- Forum: Stella Feature Requests
- Topic: Faceting for Polychora
- Replies: 1
- Views: 29272
Faceting for Polychora
One feature I would like to see is the ability to facet a polychoron - One project I would like to do is generate the vertex figures of the polytera and this feature would make it go a whole lot faster than writing OFF files for each one. Any chance that this could be added, one way to impliment it ...
- Sat Feb 07, 2009 7:10 am
- Forum: Stella Forum
- Topic: 11-cell
- Replies: 18
- Views: 86259
The ones of step 2 have a similar appearance all the way through - at infinity it approaches a curved 4-D shape that I call the "bicoiloid" - the bicoiloid is the dual of the convex hull of a curved "2-coil" (think of a part of a slinky, but with only two coils (720 degrees all together) then curve ...
- Fri Feb 06, 2009 4:43 am
- Forum: Stella Forum
- Topic: 11-cell
- Replies: 18
- Views: 86259
Below is the OFF file that I started with - it generates a polychoron with 8 congruent corners - (the same corners as the 8 - 2 step prism), I used a drawing of an octagon to find sets of tetrahedra (complete tetragons in the octagon) that would fully connect and close - this is how I developped the...
- Wed Feb 04, 2009 11:35 pm
- Forum: Stella Forum
- Topic: Powertopes
- Replies: 0
- Views: 23920
Powertopes
If we take the square of a polygon, we get a duoprism of that polygon - and this is the beginning of powertopes. Powertopes are the result of taking a polytope and taking it to some "power" where the power is usually a shape having "block" symmetries (i.e. rectangle, square, cuboid, cube, tesseract,...
- Wed Feb 04, 2009 10:31 pm
- Forum: Stella Forum
- Topic: 11-cell
- Replies: 18
- Views: 86259
- Mon Feb 02, 2009 7:31 pm
- Forum: Stella Forum
- Topic: 11-cell
- Replies: 18
- Views: 86259
- Mon Feb 02, 2009 8:46 am
- Forum: Stella Forum
- Topic: 11-cell
- Replies: 18
- Views: 86259
And the number of configurations increases as N grows larger I would presume. Is there a formula for that? Roger A step tegum requires two numbers - N and M - where N is the number of cells, and M represents the "step". I'll use a 13 sided one for an example. Consider the 13-gon, we can label its v...
- Sat Jan 31, 2009 9:55 pm
- Forum: Stella Forum
- Topic: 11-cell
- Replies: 18
- Views: 86259
Perhaps those would be nice additions to the Stella library. Are the 7 though 13 (odd) cells unique or are there N-cells at various integer values? These exist for all N greater than 4, for N=5 we get the pentachoron. For N=6 we get the triangle duoprism, for N=8 there are two and one is the tesser...
- Sat Jan 31, 2009 6:51 am
- Forum: Stella Forum
- Topic: 11-cell
- Replies: 18
- Views: 86259
I'm aware of two potential hendecachora with identical cells that could be modeled in 4D, however they aren't the one with the hemi-icosahedra - that one requires some strange curved 4-space. I have yet to model the two 11-celled polychora, but I have done the 7-cell, two 9-cells, and three distinct...
- Wed Jan 14, 2009 11:03 pm
- Forum: Stella Forum
- Topic: Thirteen Sided Dice
- Replies: 0
- Views: 22966
Thirteen Sided Dice
Recently I rendered the three possible cell-transitive tridecachora using Off files and Stella4D. I started by using the thirteen vertices of their duals, then using a tridecagon to find a set of triangles and complete tetragons (representing tetrahedra) that would form a closed figure - imported th...