[hnote]

Similar thing, other data sources:

IP address space: http://corte.si/projects/geohilbert/index.html and http://xkcd.com/195/

Genomic data: http://www.ebi.ac.uk/huber/docs/btp152v1.pdf

A portrait of the Hilbert curve as a young fruit salad: http://corte.si/posts/code/hilbert/portrait/index.html

and some art.. http://www.donrelyea.com/hilbert_algorithmic_art_menu.htm

[ableal]

Thanks. I 'blind-spotted' the xkcd URL in your comment, and was going to add it. In the process, I hit the blog post ( http://blog.xkcd.com/2006/12/11/the-map-of-the-internet/ ) about it - interestingly, it was a rediscovery ...

The 'young fruit salad' tag, for the RGB cube, does take the cake, though ;-)

P.S. If memory serves, there was a neat Python turtle Tk graphics demo which slowly traced a colored Hilbert curve. Perhaps it's the 'fractaldemo' in http://docs.python.org/library/turtle.html

[qwzybug]

The "fruit salad" visualization is beautiful.