Roman mosaic, Hippone-Annaba

In the original floor, the lines are in the form of thick braiding.

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one regular two-pointed star polygon with vertex angle of 45°.
• Contains one regular octagon.
• There is one non-regular reflective tile (including one dart).
• 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 147 polygons.

1. Pl 413 (b) (Hippone-Annaba) of Catherine Balmelle .... Le décor géométrique de la mosaïque romaine, Paris, Picard, 2002. ISBN 270840624. [balmelle] {2 vols}

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

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