Friday Mosque, Herat
data187/FIG4
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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 one equilateral triangle.
- Contains one regular hexagon.
- Contains two regular 6-pointed star polygons with vertex angle of 60°.
- There are three non-regular reflective tiles.
- The tiling satisfies the interlace condition and has two finite interlaces and one infinite interlace with straight cross-overs.
- The tiling is edge-to-edge.
- As drawn, contains about 127 polygons.
References
Publications referenced:
- Fig 606 (Friday Mosque, Herat, Afghanistan, Central Asia. Arch spandrelin Ghorid part) of Derek Hill. Islamic architecture and its decoration, A.D. 800-1500..., Faber and Faber, Pressmark 35.C.183, 1964. ISBN 050051032. [hill] {With an introductory text by Oleg Grabar}
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