Hi The Antiprism list is a friendly place to chat about geometry and related topics. It is a place to share ideas and thoughts, a place to request and give...
[reply to a request for information on making tetrahelix animations] It is just a basic Python script to output the model stages of a single chain in OFF...
Hi All If anyone wants to make an animation, the kaleidocycle program is not yet finished but works fine for regular tetrahedra. It is undocumented but...
Hi All I've made a packing animation based on the sequence shown on the cover of this book http://ec1.images-amazon.com/images/P/048623729X.01._SCLZZZZZZZ_.jpg...
Hi All I looked at modelling something close to the tensegrity models I made before http://www.freewebtown.com/adrian/geom/835_tens_models/ but with the cords...
Hi All Here is small GLUT based viewer which displays models based on R. Buckminster Fullers jitterbug transformation http://antiprism.com/link/jitterbug_gl ...
... Here is an image that illustrates this better http://www.freewebtown.com/adrian/tmp/ch_cfg02.jpg The parts of the tetrahedron which are external to the ...
Hi All There is support in antiview for displaying equal-sized ball packs. Here is a diamond arrangement, and drawn again as a ball pack lattice.py diamond 3...
[part of a message about a helix formed from from chain of tetrahedra hinged at opposite edges] I thought at first it could be a start for an arrangement like ...
Hi All http://www.rwgrayprojects.com/synergetics/s10/figs/f33019.html Alan Holden calls the shape made by the dark triangles a regular nolid in Shapes, Space...
Hi All I have been looking at producing a GUI for my command line programs. It is difficult to decide on a cross-platform set of GUI tools. I have just been...
... I have made these changes. The Linux code built fine on Cygwin, without having to make any further changes, and the viewer also works fine. Adrian. -- ...
Hi All The duals of zonohedra are quite nice. The "zones" of faces, joined along edges having a common direction, become rings of co-planar vertices in the...
Hi All I have just released Antiprism 0.10 http://www.antiprism.com/download/ This release includes the new antiview OFF file viewer, a kaleidocycle generator...
Hi Adrian Good going and congratulations! I have access to a PC at work. Maybe I'll get to try antiprism out. Can just about anyone learn to use it? Dick...
Hi Dick ... Thanks. ... The programs vary in their ease of use, but the easier programs are very easy to use. However, someone who wants to use the Antiprism...
Hi All Antiprism includes a primitive program for making some sorts of string art. http://www.antiprism.com/programs/string_art.html Here are some models I...
Hi All I've been writing a program to generate uniform tilings in 2D. It is unfinished and undocumented but included in the latest release of Antiprism as...
Hi All There is an interesting and accesible book on four dimensional geometry by Thomas Banchoff - Beyond the Third Dimension: Geometry, Computer Graphics,...
... I managed to tile a cross-cap in the following way - 1. Map the base rectangle onto a square. 2. Map the square onto an ellipse with the diagonals of ...
Adrian, Nice to see this new group forming. I am quite anxious to get my Antiprism working. I am having troubles as the screen only flashes for most stuff and...
Hi Steve ... You might see this if you pipe some commands together with antiview as the last command, and an earlier command fails. There is nothing for...
Adrian, I got the viewer working now. I also tried several .exe and they were fine too. I copied lattice2.py and pasted numerous places but could not get it to...
Hi Steve ... It is a Python program, so you have to do what you usually do to run them. Maybe one of python lattice2.py c:\python_dir\python lattice2.py ... ...
Hi All In an oriented polyhedron assign a point above and below the mid-point of each edge. Running around the faces join the below point of an edge to the...
... I notice that when Yahoo displays the message it doesn't allow lines to wrap, but instead inserts an HTML line break. For me, cutting and pasting from the...
Adrian, I have been able to get everything working. I am having some troubles with lattice.py and with lattice2.py. lattice2.py fcc 2 9 0,1,0 | conv_hull -a | ...
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