[image] 1CLOSED.3dm (348.6 KB) I have an imported Brep that is clearly 2 parts, but it showing as a valid closed polysurface. How can I detect these types of Breps? Thanks, Dan

RH-85074 is fixed in Rhino 8 Service Release 15

Hi @lignindes , Where or what did you import the file from? It is possible to create disjoint Breps programmatically. I can’t think of a good way to detect this, off the top of my head. – Dale

@dale Revit, of course! The place where geometry goes to die. Darn, this type of problem is something I’m coming up against regularly. Can I detect using a Python script and RhinoCommon? Is there an .IsDisjoint() method anywhere? Dan

Hi @lignindes , I’ll see what I can come up with. – Dale

import Rhino import rhinoscriptsyntax as rs import scriptcontext as sc def count_regions(brep_id): brep_obj = sc.doc.Objects.Find(brep_id) brep_geo = brep_obj.Geometry regions = 0 to_check = [True for i in range(brep_geo.Vertices.Count)] def are_adjacent(v1, v2): for edge in brep_geo.Edges: …

Hi @lignindes , https://mcneel.myjetbrains.com/youtrack/issue/RH-85074 I’ve added some “stuff” that should make this easier. It will appear in the first Rhino 5 SR15 release candidate. – Dlae

Can’t you use this? [image] Split Disjoint Brep? Rhino Developer Hi @siemen , I’ve added a new Brep.GetConnectedComponents method to RhinoCommon that should help with this. Expect to see this method in the 7.18 release candidate. https://mcneel.myjetbrains.com/youtrack/is…

[image] siemen: Can’t you use this? Yep, that works - thanks for reminding me. The new stuff I added is a little fancier, as it returns an index map identifying what faces went into making the pieces. If you don’t care about that, use what you’ve mentioned. – Dale

Closed polysurface?

Rhino

siemen December 6, 2024, 7:37pm 8

Can’t you use this?

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Closed polysurface?

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