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The Polyomino Database
This is the test site for a database of polyomino tilings. This first version went live on May 1st 2006. I make changes to it every day. This is a personal project and I follow no particular release discipline... except to note that, for now, It's still in testing.
If you come across this site and are interested, please drop me a line, poly@omino.com. Put "polyomino" in the subject line to get past my spam-no-spam scripts.
Feel free to create a wiki account and add some tilings. Feedback appreciated. Write directly on the main page here if you like! This is a work in progress and feature-suggestions are very very very welcome.
Getting started
The <omino> Extension
An important feature of this site is dynamic polyomino rendering. It's nice to talk about the T pentomino (
) and refer to it visually without a lot of tedious file-uploading! It's so much nicer to just say
instead of something longwinded like "the 3 x 5 rectangle formed from two P pentominoes and the T pentomino, the arrangment of which is left as an exercise for the reader," don't you think?
Here's the syntax for embedded polyomino rendering:
Enclose a tiling pattern like aaa-aa-.aa in <omino>aaa-aa-.aa</omino>, to get:
Free *omino* gif-generation
You can use this polyomino rendering service from anywhere on the internet!
You can dynamically generate a polyomino tiling image with a url like:
http://poly.omino.com/img?omino=aabbcc-aaccbb
This can be handy for several reasons
- Generate a one-off that you then copy,
- Or as a live link from, perhaps, other generated data,
- Or just to embed as handy image.

