Unique Warped Window

Hi guys,

Does anyone know how to create this window pattern in Grasshopper? (Pattern avoids the hole)


Unique Warped Window at Londons Church of St. Martin

Also, is it possible to change the square pattern to other patterns, like net, diamond or triangular pattern?

Any help will be appreciated! Thank you!

Hi,
like this?
*requires nudibranch and also it needs a low unit tolerance (.01) for surface split to give results

ellipsewindow.gh (21.5 KB)

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Had another look at it.
It actually needs bulging AND twirling to achieve the effect

ellipse2.gh (23.5 KB)

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