Alhambra, Sala del Mexuar
 
 
  data177/JR38a
(Click on image for high-quality PDF version)
 
 
 
 data177/JR38a
(Click on image for high-quality PDF version) 
 
 
This display is as in the Alhambra ceramic dados, North end of Sala del Mexuar. To see it with the 16-pt star in the centre see Alhambra, Sala del Mexuar. 
 
Geometry
 
 
-  The symmetry group of the tiling is *442 (p4m).
-  All the internal angles of the constituent polygons are a multiple of 22.5°.
-  Contains one regular two-pointed star polygon with vertex angle of 45°.
-  Contains one regular 8-pointed star polygon with vertex angle of 90°.
-  Contains one regular 16-pointed star polygon with vertex angle of 45°.
-  There are 11 non-regular reflective tiles (including 2 kites) and one reflective pair.
-  The tiling satisfies the two-colour condition with straight cross-overs, but interlace counts not determined.
-  The tiling is edge-to-edge.
-  As drawn, contains about 901 polygons.
 
References
 
 
Publications referenced: 
 
 
-  John Rigby's photograph 38a (Alhambra, Sala del Mexuar, Spain. From Andalucian study tour, using these colours)  of Not specific. Personal Communication, Information sent to the author,	21c.	 [pc] 
-  Photo by David Wade: SPA 0929x (Alhambra, Sala del Mexuar, Spain)  of David Wade. Website: patterninislamicart.com, UK,	2015.	 [wadei]  {Website}
Photographs
 
 
 
 
Collections of similar tilings
 
 
 
Patterns using same irregular tiles: 2 
   v54