Remove inside opening curves

[Ewan_Opie]

Without seeing the dataset, I would suggest trying this one?

Grouping Curves with Design Script

Design script definition that groups a list of shuffled curves into loops… [GroupCurves] On the package manager search for tstngwtrs-GroupCurves However the node doesn’t need to be downloaded, paste the below code in a code block and call grpCrvs(crv) def grpCrvs(crv:var[]..[]) { dis1 = (crv.StartPoint)<1>.DistanceTo(crv<2>)==0 ||(crv.EndPoint)<1>.DistanceTo(crv<2>)==0; ind1 = List.AllIndicesOf(dis1<1>,true); bln1 = true; ind2 = [Imperative] { …