I need to patch this hole in a surface and I'm unable todo a surface fill. Unable to pick the edges, but will pick surfaces in the background. Here is a screen shot of the problem area
Any chance you can post the file? It's hard for me anyways to see exactly what needs patched.
Other methods that may help are using the Extend Surface tool and then Trim if needed. Boundary and Loft Surfaces may help too.
I don't understand when you say it won't let you pick the edges. Any of the edges? Or just some of them? If it is only some, you may be able to use a 3D Sketch to add an edge you can't pick.
You will probably have problems where the arc shaped edge on the right meets the roughly straight edge to its left at a very sharp angle. You might try trimming off the arc shaped piece and then filling the easier three or four sided patch.
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