Skip to search.

Breaking News Visit Yahoo! News for the latest.

×Close this window

antiprism

The Yahoo! Groups Product Blog

Check it out!

Group Information

  • Members: 82
  • Category: Geometry
  • Founded: Nov 2, 2006
  • Language: English
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Hear how Yahoo! Groups has changed the lives of others. Take me there.

Messages

Advanced
Messages Help
Messages 3283 - 3312 of 7747   Oldest  |  < Older  |  Newer >  |  Newest
Messages: Simplify | Expand Author Sort by Date ^
3283 Adrian Rossiter
adrianrossiter Send Email
Jun 1, 2009
10:40 am
Hi Roger ... It would probably be better that Antiprism worked consistently with homogenous coordinates. They allow points at infinity to be represented, which...
3284 vortexswirling Send Email Jun 1, 2009
5:10 pm
Hi Adrian, ... What I was refering to might be different. It is hard to find much information on raw GKS (Graphics Kernel System) because so many higher...
3285 Adrian Rossiter
adrianrossiter Send Email
Jun 2, 2009
10:38 am
Hi Roger ... The matrix rows look like (1,0,0,0), (0,1,0,0), (0,0,0,1/d), (0,0,0,1) so multiplying a column vector (x,y,z,1) (if that is how the matrix is...
3286 Adrian Rossiter
adrianrossiter Send Email
Jun 18, 2009
4:59 pm
Hi All Here is a snapshot of the current development code Source only (2Mb) http://www.antiprism.com/misc/antiprism-0.20.pre06.tar.gz Windows binaries and...
3287 Adrian Rossiter
adrianrossiter Send Email
Jun 18, 2009
7:14 pm
... That's not right! The display and the symmetry are misaligned by PI/2n for Dnh with n odd. The alignment is fine for Dnh with n even poly_kscope -t -s D6h...
3288 Adrian Rossiter
adrianrossiter Send Email
Jun 18, 2009
7:21 pm
... Or rather, just the mirrors. It might be that they are being aligned on their normals rather than their "planes". Adrian. -- Adrian Rossiter ...
3289 Adrian Rossiter
adrianrossiter Send Email
Jun 18, 2009
8:09 pm
... This was the problem. base/symmetry.cc line 642 should be sym_ax.set_perp(mat3d::rot(axis, M_PI/2+M_PI/nfold)*(*vi)); Adrian. -- Adrian Rossiter ...
3290 vortexswirling Send Email Jun 19, 2009
1:18 am
Hi Adrian, ... I made this change before compiling in cygwin/mingw. I only worked on it for a few minutes but this is what I found. antiview didn't build I...
3291 Adrian Rossiter
adrianrossiter Send Email
Jun 19, 2009
7:36 am
Hi Roger ... I don't know about this one (assuming there was an 'l' and it was -lglu32). I wonder if there was an earlier error. ... It is probably that the...
3292 vortexswirling Send Email Jun 19, 2009
12:16 pm
Hi Adrian, ... I reran the compile with scripting and found the full text: *** Warning: linker path does not have real file for library -lglu32. *** I have the...
3293 vortexswirling Send Email Jun 19, 2009
12:19 pm
Hi Adrian, ... I just wanted to clarify that antiview is being created now in spite of the warning text I included in the previous note. Roger...
3294 Adrian Rossiter
adrianrossiter Send Email
Jun 19, 2009
1:28 pm
Hi Roger ... I am not sure about this at the moment. When I make the next snapshot I will try building it in cygwin with -mno-cygwin. ... I forgot that might...
3295 Adrian Rossiter
adrianrossiter Send Email
Jun 19, 2009
2:10 pm
... These are the translationsi for uniform polyhedra. They mean that a small stellated dodecahedron can be made with 'u_sm_st_dod', which is easy to remember ...
3296 vortexswirling Send Email Jun 19, 2009
3:44 pm
Hi Adrian, ... Looking at the code I see now that the johnson polyhedra code is in the base directory. As long as there is another way to list them then the...
3297 vortexswirling Send Email Jun 19, 2009
4:18 pm
Hi Adrian, ... I went back and did the examples in the opening note of this thread. These look really good! I like the symmetry graphics and the base/dual...
3298 vortexswirling Send Email Jun 20, 2009
1:46 pm
Hi Adrian, ... This seems easier. ... Then they wouldn't need to exist in altnames.txt? I tried knocking out tetrahedron and it then does not pick it up....
3299 Adrian Rossiter
adrianrossiter Send Email
Jun 20, 2009
1:49 pm
Hi Roger ... Unipoly is only a thin wrapper of kaleido, but it uses the Antiprism library for convenience utilities for the command-line options, for OFF...
3300 vortexswirling Send Email Jun 20, 2009
1:49 pm
Hi Adrian, ... I was experimenting doing this with off2vrml which worked and is a nice model. Then I was going to try to make the cube transparent with...
3301 Adrian Rossiter
adrianrossiter Send Email
Jun 20, 2009
2:05 pm
Hi Roger ... I can see this too with the MinGW binaries I made. I use a little stdarg utility routine to set up the arrow model, so that was my first thought....
3302 Adrian Rossiter
adrianrossiter Send Email
Jun 20, 2009
2:09 pm
Hi Roger ... I can't see a reason to leave them in alt_names.txt so I plan to remove them. The internal resources are always checked last so it is possible to...
3303 Adrian Rossiter
adrianrossiter Send Email
Jun 20, 2009
2:57 pm
Hi Roger ... The old HSVA options were used in two different ways in the previous off_color. They were used to set ranges when constructing colour maps, and...
3304 vortexswirling Send Email Jun 20, 2009
6:18 pm
Hi Adrian, ... Due to number of threads I reply in just this one. I was able to do what I wanted with bravais bravais sc -g 1,1,1 -C c -F red,c,128 | antiview...
3305 vortexswirling Send Email Jun 20, 2009
7:21 pm
Hi Adrian, I found where poly_kscope was failing. I put a statement fprintf(stderr,"before if(v_code[v_next] < 0) in find_path v_next = %d\n", v_next); When...
3306 vortexswirling Send Email Jun 21, 2009
6:52 pm
Hi Adrian, ... I was looking for common elements in the uniform names. The main problem with it is when rhombi is next to icosi, they use a common i between...
3307 Adrian Rossiter
adrianrossiter Send Email
Jun 23, 2009
11:20 am
Hi Roger ... I have added it back in (and changed the help!). There is now an -r option (for range) that maps colour values into HSVA ranges. The argument...
3308 Adrian Rossiter
adrianrossiter Send Email
Jun 23, 2009
11:44 am
Hi Roger ... Thanks for tracking this down. The failure is when finding the symmetry of an arrow positioned by poly_kscope before repeating it symmetrically. I...
3309 Adrian Rossiter
adrianrossiter Send Email
Jun 23, 2009
1:32 pm
Hi Roger ... If a name matches the beginning of a polyhedron then the first match is returned. That helps as a non-specific abbreviation, but the expected...
3310 vortexswirling Send Email Jun 23, 2009
1:46 pm
Hi Adrian, ... This look interesting. I also think it would be easier to work with than the map creation. But I am wondering how it would look for the rainbow...
3311 Adrian Rossiter
adrianrossiter Send Email
Jun 23, 2009
3:12 pm
Hi Roger ... It works the same way. You can currently set the alpha value on the map like this off_color -f G -m hsv256_0:1:0_0.9_0.9_0.7 If I change to...
3312 Adrian Rossiter
adrianrossiter Send Email
Jun 23, 2009
6:03 pm
Hi Roger ... I tried a practice system, and it was solved. The basic equations for j89, the hebesphenomegacorona, as coordinate distances are e^2+(g-f)^2=4, ...
Messages 3283 - 3312 of 7747   Oldest  |  < Older  |  Newer >  |  Newest
Add to My Yahoo!      XML What's This?

Copyright © 2010 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines NEW - Help