Rabat, Royal Palace throne room

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains two squares.
• Contains two regular two-pointed star polygons with vertex angle of 45°.
• Contains three regular 8-pointed star polygons with vertex angle of 90°.
• Contains one regular 8-pointed star polygon with vertex angle of 45°.
• There are 15 non-regular reflective tiles (including one kite and one dart).
• 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 1475 polygons.

1. Page 148 (Royal Palace throne room, Rabat, Morocco. Large zellij work of which this tiling covers about 80%) of Jean-Marc Castéra. Arabesques: Decorative Art in Morocco, ACR Edition, Paris, 1999. ISBN 286770124. [castera] {Beautiful book.}

v54