Mesh edges: Boolean return for concavity

I might have overlooked it.. Is there a component that returns a true/false for concavity in mesh edges? It would require a method to get the neighbouring mesh faces for each edge, but that's where I'm stuck...

Some ideas?

Replies to This Discussion

Permalink Reply by Ethan Gross on May 28, 2016 at 1:56pm

The M(+) plugin contains an edge-shared face angle component.

Permalink Reply by LetoLab on May 28, 2016 at 2:28pm

(; Thanks! I did find the plugin but I couldn't get what I want..

Permalink Reply by LetoLab on May 28, 2016 at 2:27pm

Update: I finally fixed it by using PointInCurve in combination with the Mesh+ plugin and Weaverbird. If the midpoint of an edge is coincident with one of the faces it is filtered. Here's the file - hope it is of some use to some of you.

Attachments:

MeshEdgeConcavity.gh, 14 KB

Permalink Reply by LetoLab on May 29, 2016 at 1:31pm

Update 2.0: Noticed some strange behaviour and figured out the cause. Should have used only one method to obtain the mesh edges. Also, Rhino tends to crash when feeding a Mesh Closest Point parameter into a Mesh Evaluate component. Worked around that problem and it seems to be stable now.

Attachments: