Jali screen

For related pattern, see Fatehpur Sikri.

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains four regular two-pointed star polygons with vertex angle of 67.5°.
• Contains one regular four-pointed star polygon with vertex angle of 135° - composed of kites.
• There are five non-regular reflective tiles (including 3 kites).
• The tiling does not satisfy the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 493 polygons.

1. Fig 15.2a, photo Fig 15.2b of Brian Wichmann and David Wade. Islamic Design: a Mathematical Approach, Springer, 2017. ISBN 978-3-319-69. [ww] {}
2. Photo by David Wade: IND 0820 (Fatehpur Sikri, Salim Chishti's Tomb, India) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}
3. The Metropolitan Museum of Art, 1993.67.2 (India. Jali screen) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

• Wade photo IND 0820

• Two-level patterns

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