Hello.

here i presenting to you simple, but working ProTractor[1] glyph recognizer. it is a successor of $1 gesture recognizer[2]. it's reasonably reliable and fast.

http://repo.or.cz/w/iv.d.git/blob_plain/HEAD:/geng.d

i don't think that you really need any documentation for it, as everything is very simple. the only thing you have to remember is that you'd better keep all template glyphs normalized. here is some quickhack sample using my other IV modules: http://repo.or.cz/w/iv.d.git/tree/HEAD:/protractor_test

i included simple glyph reader and writer, so you can easily store and load your glyph libraries.

[1] http://yangl.org/pdf/protractor-chi2010.pdf
[2] http://depts.washington.edu/aimgroup/proj/dollar/