Alhambra, Salon de Comares

Based on a pair of square ceramic mosaic panels on the west wall of the Salon de Comares, between the three window alcoves. With the original colours.

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains 8 squares.
• Contains one regular four-pointed star polygon with vertex angle of 45°.
• Contains 11 regular 8-pointed star polygons with vertex angle of 90°.
• There are 13 non-regular reflective tiles (including one kite) and two reflective pairs.
• 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 1861 polygons.

1. Page 345, Figure 169 (Alhambra, Salon de Comares, Spain. Alicatado dados on the West side) of Antonio Fernández-Puertas. The Alhambra: Volume I - from the ninth century to Yusuf I (1354), SAQI Books, 1999. ISBN 086356466. [fernandez] {Beautiful book.}(1350-4AD, 750-5AH)

• Tiling whose tile angles are a multiple of 45° and whose lengths are p+q*sqrt(2).

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