I tried to copy a couple of holes of that polysurface via the ! _CopyHole command, but something prevents Rhino from doing so. The ! _MoveHole _Copy=_No command does not work, either.
However, these two commands eventually worked when I used the ! _ExtractSrf command to extract some surface off the polysurface, then I joined them together again. Only then I was able to copy the holes I needed. Looks like some hidden force “locks” the ability to copy or move holes in this polysurface unless it’s being modified.
Hi Bobi- Hm - looks like it does not like the exstrusion… your extract-and-join made it a brep. ConvertExtrusion also allows the command to work. I’ll test other cases, thanks for the report.
Yeah - it does not work on extrusions, which seems like an oversight to me… but I cannot see how we could have got away with it for so long - this may be a regression.
Hi Pascal, I just noticed that the “Use extrusions when possible” option located under the “General” section in Rhino options was turned on, despite that I always keep it off. Maybe it was switched on after the last update of Rhino that I downloaded last week. As you mentioned above, it looks like extrusions are behaving differently when it comes to modifications. I turned off the extrusions and the issue is gone.