Friday Mosque, Herat
data198/HER1
(Click on image for high-quality PDF version)
Geometry
- The symmetry group of the tiling is *442 (p4m).
- All the internal angles of the constituent polygons are a multiple of 4.5°.
- Contains one square.
- Contains one regular two-pointed star polygon with vertex angle of 72°.
- Contains one regular pentagon.
- Contains one regular 8-pointed star polygon with vertex angle of 72°.
- There are four non-regular reflective tiles and one reflective pair.
- The tiling satisfies the interlace condition and has three finite interlaces and no infinite interlace with straight cross-overs.
- The tiling is edge-to-edge.
- As drawn, contains about 128 polygons.
References
Publications referenced:
- Page 288, Fig 174c (Bimarhane hospital, Amasya, Turkey) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}(1308-9AD, 707-8AH)
- Page 86, Fig 3.58 and 3.59 (Friday Mosque, Herat, Afghanistan, Central Asia. Detail of Ghurid entrance portal) of Eric Broug. Islamic Geometric Design, Thames and Hudson, 2013. ISBN 978050051695. [broug2] {Many excellent photos}
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