How to get only the outer co-ordinates of a floor element

[Elie.Trad]

Group Curves node from archilab as well:

Exporting boundary coordinates

@Khan486 Croup Curves by archilab package will group all “adjacent” curves in sub-lists, in general, the last list will be the outer boundary, nevertheless, you can group them based on surfaces areas to get the desired boundary, hope it helps: [image]