The Alhambra tweets! They shared a [url=http://www.alhambra-patronato.es/geometria-matematica-alicatados]nice math art post[/url] on some of the tilings there, , and Vincent Pantaloni passed it on, and added a cool GeoGebra version of one of the tilings. So I had to try something... (bottom left)[br][br]A stronger visual effect could be had with polygons, but the original looks like circular arcs, so that's the route I went.[br][br][url=https://twitter.com/MuseoAlhambra/status/915255171709652994]Original tweet[/url] & [url=https://twitter.com/panlepan/status/915324876390531073]Vincent's animation[/url]