Hi,
I have an issue with closing Breps .
The final result is generated by joining individual faces and down the row there are some Micro Edges which can be removed by Rhino command “RemoveAllNakedMicroEdges” . However, I can’t find anything in rhinoCommon.dll which does it!
Hi @torabiarchitect,
Can you post a model that contains a Brep that works well with this command?
Thanks,
– Dale
Hi Dale,
I attached the model. This is created by a grasshopper plugin which I am working on.
If you explode the object and join its faces back, you still get an open object. but after calling the RemoveAllNakedMicroEdges command the object is closed! I can’t find out why and I am not able to simulate this within the API.Issue with open Breps.3dm (107.2 KB)
Hi @torabiarchitect,
There isn’t anything on RhinoCommon, at the moment, that can help. But I’ve added something that will. Try the new BrepEdgeList.RemoveNakedMicroEdges method in next week’s Rhino 7 Beta release.
https://mcneel.myjetbrains.com/youtrack/issue/RH-61026
– Dale
Hi @dale
having this method in Rhino 7 is great!, Is there any chance to include this in the next Rhino 6 service pack? our aim is to release the plugin for Rhino 6 .
One of the triangular faces has 4 edges, one of 0 length.
This could be a workaround:
for(var i = 0; i < brep.Faces.Count; i++)
if (brep.Faces[i].AdjacentEdges().Any(j => !brep.Edges[j].IsValid))
brep.Faces.RemoveAt(i);
A = brep.CapPlanarHoles(RhinoDocument.ModelAbsoluteTolerance);
torabiarchitect.gh (15.8 KB)
Good to know! I can imagine what is causing this… could you please explain how did you find out ? Actually I exploded the object and look for such a thing , but I couldn’t find …
excellent ! I should first find out what causes the problem in first place, If I can’t then I will try to kill the invalid edges… thanks a lot
Via UI
- _ShowEdges with Naked edges mode to identify naked edges.
- _ExtractSrf the adjacent faces.
- _What each face to get its edge count.
- If the edge count is more than expected, _DupEdge the edges of the face then _SelShortCrv. (In the case of the face with the extra edge in your model, _DupBorder simplifies the edge curves to a 3-point polyline.)
If this is something you need to do often, the faces can be identified with BrepEdge.AdjacentFaces for each edge whose length is below a minimum tolerance.
Problems like this can occur when the input Breps for Boolean, split, etc., operations have coincident or overlapping geometry.
Thanks a lot!
See if RetrimSrf.py in the post below can repair the faces.