This created this surface from some curves and used boundary surface to then divide the domain, but it is not working.

Hi Cameron,

Thatâ€™s because you are only dividing the mathematical domain of the surface, not the actual surface itself with lines/physical geometry.

You can feed that the domain divisions into a node like â€śIsoTrimâ€ť but that wonâ€™t respect your original surface geometry either.

Hereâ€™s an example of one way to divide the surface, someone on these forums probably has a better solution though and this topic comes up quite a bit.

20230530_Divide_Surface_Response_01a.gh (12.4 KB)

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Thank you

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Youâ€™re welcome!