Is there any method to fill the hole based on the boundary like this

[ziaow (Ziao)]

I want to fill holes by these curves boundary. I know patch may work, but I want to keep the edge firmed.

hole fill question.3dm (4.5 MB)
work, but I want to keep the edge firmed.

[Joseph_Oster]

‘Mesh Edges (MEdges)’, joined and split in two, then used to create ‘EdgeSrf’ covering each hole?

mesh_holes_2017Dec11a.gh (8.2 KB)

The glazing surfaces are faceted because the mesh edges are straight line segments.

[ziaow (Ziao)]

Thank you so much, Joseph! <3