Extracting closed Polycurves from given Surface

[Vikram_Subbaiah]

@mellouze You could also consider this …

Grouping Curves with Design Script

Edit: Update for Dynamo 2.15.XX def grpCrvs(crv:var[]..[],maxGap:double = 0.0) { dis1 = (crv.StartPoint)<1>.DistanceTo(crv<2>)<=maxGap ||(crv.EndPoint)<1>.DistanceTo(crv<2>)<=maxGap; ind1 = DSCore.List.AllIndicesOf(dis1<1>,true); bln1 = true; ind2 = [Imperative] { while (bln1) { cnt1 = DSCore.List.Count(ind1); ind1 = grpIndx(ind1); cnt2 = DSCore.List.Count(ind1); bln1 = cnt2!=cnt1; } return = ind1; } …