How to repair programmatically this crazy face?

[MikeWayzovski]

Might have to do with the single vertex bug ?

Glitch or consequence?

it’s a Glitch… it can happen at any scale and is even odder than simply not drawing a face… [image] john

Glitch or consequence?

Yep! Single vertex bug. Looking via the Ruby API I find: The large outer Face doesn’t recognize the smaller one as an inner loop; it runs all the way underneath it. The smaller Face appears to be OK, but… There is a duplicate, garbled Face whose outer loop encloses both the small (void) area and the smaller Face. Its outer loop traces Edges in the order numbered in the attached image, in effect creating a bow-tie. [image]

Notice that the area’s in the entity info of the inner loops are substracted from the larger ones.