Squinch in Friday mosque of Golpayegan
Ali Reza Sarvdalir elaborates an example and refers to the Friday Mosque of Golpayegan.
This time, he emphasizes the curved surfaces and gives an example of a cut-out sheet to produce these curved surfaces.
Mamoun Sakkal emphasizes the concentric, layered construction and the octagon.
The squinch is just one quarter of the whole circle.
Our animation applet shows the design of this muqarnas. Use the slider to investigate this muqarnas level by level in order to check which basic elements are involved. For design purposes, each element has been given a different color. Drag the slider to the right for a view in a shiny white color.
This worksheet is part of my geogebra book on Muqarnas.
More information is available on my website Muqarnas .
![Golpayegan, Friday Mosque, dome chamber, zone of transition
[url=https://maxvanberchem.org/fr/activites-scientifiques/projets/archeologie/14-architecture/124-the-friday-mosque-of-golpayegan]Fondation Max van Berchem[/url]](https://www.geogebra.org/resource/wchbfnc2/BtSbfRDKcyujMNxx/material-wchbfnc2.png)
![Interior detail of sanctuary, corner squinch with muqarnas
[url=https://archnet.org/sites/3872/media_contents/40999]Archnet (Sheila Blair and Jonathan Bloom)[/url]](https://www.geogebra.org/resource/cecr2wkp/DUAiUDvnlEu4zspt/material-cecr2wkp.png)
Mamoun Sakkal describes the construction of a muqarnas by means of circular layers, starting from top going down to the bottom. The first ring contains sharp rhombuses pointing to the center. The second ring contains squares. The third ring contains wide rhombuses.
![source: [url=https://www.researchgate.net/publication/36343132_Geometry_of_muqarnas_in_Islamic_architecture]Mamoun Sakkal: Geometry_of_muqarnas_in_Islamic_architecture[/url]](https://www.geogebra.org/resource/vjfubvaw/UqYiFw37crhhBiXE/material-vjfubvaw.png)