The [url=https://archnet.org/sites/2074]Ak madrassa[/url] in Nigde dates from 1409. Het plan of the muqarnas of the monumental gate is constructed out of 8 squares. [br]In next applet you can follow stepwise the construction of the unit square:[br][list][*]In the center of the square an 8-pointed star is drawn. [/*][*]Aroud this star squares define a regular octagon.[/*][*]In the four corners an irregular 5-pointed star is constructed[br][/*][*]The remaining space is filled in with irregular figures[/*][/list]

This basic square forms the unit cell of the muqarnas.