St Maria in Cosmedin, Rome
data4/P76TL
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Geometry
- The symmetry group of the tiling is *632 (p6m).
- All the internal angles of the constituent polygons are a multiple of 60°.
- Contains four regular two-pointed star polygons with vertex angle of 60°.
- There is one non-regular reflective tile.
- The tiling does not satisfy the two-colour condition.
- The tiling is not edge-to-edge.
- As drawn, contains about 267 polygons.
References
Publications referenced:
- Fig 14.2a of Brian Wichmann and David Wade. Islamic Design: a Mathematical Approach, Springer, 2017. ISBN 978-3-319-69. [ww] {}
- Page 76 (top left) (Mosaic floor, St Maria in Cosmedin, Rome, 6th-12th centuries) of F M Hessemer. Historic Designs and Patterns in Color, Dover, a1840. ISBN 048626425. [hessemer] {This collection is unusual in giving the source for almost all the patterns.} Available on Internet.
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