Bourgoin, Plate IX (top right)

• Growth dynamic build of this pattern.
• Random dynamic build of this pattern.
• Structured dynamic build of this pattern.
• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains one square.
• Contains four regular two-pointed star polygons with vertex angle of 45°.
• Contains one regular 8-pointed star polygon with vertex angle of 90°.
• There are four non-regular reflective tiles.
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 414 polygons.

1. Plate IX (top right) (This colour used) of J Bourgoin. Arabic Geometrical Pattern and Design, Dover, 1879. ISBN 048622924. [bourgoin] {Classical book of around 200 hand-produced patterns, in back and white.} Fuller version available on Internet.

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