We (@anpc & @cben) wanted something geeky and XKCD-ish for our wedding invitation and came up with a Huppa extended in the 4th dimension, or a 4-dimensional Cubiod with frills:
Yes, we're strange :-) The invitation details page (originally at bit.ly/huppoid -> sourceforge) included code to render it from different points of view. I don't think anybody cares, but I wanted to release & preserve it...
I failed to find a good-looking direct 4D->2D projection so did a 4D->3D (resulting in cube-within-a-cube) followed by 3D->2D from a different point. Apparently that's a well known way to visualize 4D — Schlegel diagram.
The original 2009 version can be seen at https://rawgit.com/cben/huppoid/a6f4f499066606a427637b57b7cb0e4daa8c7ae4/output/huppa.html. It was compiled to JavaScript with Pyjamas, now known as Pyjs and drew on a CANVAS tag. a6f4f499066606a427637b57b7cb0e4daa8c7ae4 contains the latest source I found but I failed to find a Pyjamas version that will compile it correctly...
As Pyjs does browser sniffing and requires compilation, I figured Brython which interprets Python 3 in-browser would be a better archival format.
Alas Brython turned out waaay slower than the 2009 version (even with Moore's law?!), but oh well. (If I were to write it now, I'd have used something with 1:1 translation to JS such as Coffeescript or Rapydscript, or just raw JS. And WebGL.)
I also found the z-order (aka painter's algorithm) was very lacking — it always drew all lines, then the fat points and the stick figures image last on top. I somewhat improved the sorting but there are still some buggy angles, e.g. https://cben.github.io/huppoid/huppa.html#-5.0,3.0,4.0,5.0 . I'm not sure it's even possible always find a correct drawing order without splitting objects or per-pixel z-buffer...
huppa.pyis loaded via XHR which may not work from afile://local checkout, a web server is needed.- Prints & exceptions go to JS console.
- Accessing Brython from JS console is hard (
__BRYTHON__.builtins.getattr(__BRYTHON__.globals().main, 'draw')...). Instead, add?debug=to get a very simple in-page Python console (type, press Enter, see JS console for history). See also http://brython.info/static_doc/en/test.html. - Add
?clearpage=to remove the static images & text - helps with screenshotting/cross-browser testing tools.
Stick figures were shamelessly stolen from https://xkcd.com/489, formal attire from https://xkcd.com/422. (Hint: XKCD scales up really well by tracing with Inkscape.)
The final invitation hazmana.jpg, hazmana2.jpg were designed by Vlad Kaminsky; I probably can license them as I see fit but not formally sure.
CC0: I place everything else here under public domain / waive all rights to the extent possible.