BUG: Extrude with Large Number of Shapes

In the attached file I have a group of closed curves (ok a lot of them). When I extrude I get this caca.

Every boolean operation appears to fail with this “closed polysrf.”

I can extract the upper surface.

If I use CAP at this point I get a bad polysrf because some of the openings get closed.

What does work at this point is to do PLANARSRF using the red shape then joining.

I presume the problem is related too the number of closed curves extruded together.

Problem Extrude 1.3dm (6.1 MB)

Hello - run SimplifyCrv on the inputs, then extrude.


Yep, that works too. I just share in case these are of any use to you folks.