Select boundary with geometry nodes

[Pierre_Est]

Hello,

I’m new to GN and I would like to know if there is way to select only boundary edges with GN.

Thanks lot,

[LordoftheFleas]

A boundary edge should be any edge with less than two neighboring faces, so this setup here should suffice:

Geonode off

Geonode on

[Pierre_Est]

Thanks a lot !