Alhambra, Salon de Comares

Part of the ceramic mosaic pattern on the frame jambs of the double arched window in the central, or throne alcove in the north wall of the Salon de Comares. With 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 two regular 8-pointed star polygons with vertex angle of 90°.
• There are five non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has no finite interlace and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 139 polygons.

1. Page 417, Figure 219 (18) (Alhambra, Salon de Comares, Spain. Alicatado dado of the throne qubba, Spain) 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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