Two Polygons, PP Class 70, [p4g,c4,d1], IH Class 29.

T00878 = data149/H2C34

data149/H2C34 (Click on image for high-quality PDF version)

Geometry

The symmetry group of the tiling is 4*2 (p4g).
Contains two squares.
There is one non-regular reflective tile.
The tiling does not satisfy the two-colour condition.
The tiling is edge-to-edge.
The tiling satisfies the two-polygon condition.
As drawn, contains about 50 polygons.

References

Publications referenced:

PP Class 70, [p4g,c4,d1], IH Class 29 of S J Dawes and B A Wichmann. A New Class of Tilings with Two Prototiles, Visual Mathematics, Vol 3, No 4., 2001. [dawes] {Revises CD/booklet.} Available on Internet.

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