Brep.Edges and Brep.Faces

Replies to This Discussion

Permalink Reply by David Rutten on November 24, 2010 at 2:32pm

You can iterate over the edge and faces, then call the appropriate duplication functions. Like so:

For i As Int32 = 0 To brp.Faces.Count - 1
    faces.Add(brp.Faces(i).DuplicateFace(False))
Next

--
David Rutten
david@mcneel.com
Seattle, WA

Permalink Reply by Miguel Vidal on November 25, 2010 at 8:14am

Now I see ... thanks, David!

Permalink Reply by kermin chok on October 8, 2014 at 6:45pm

Hi David,

I seem to be similarly confused. As an example, I have a planar surface with a trimmed hole in it. I want to extract out the edge curves for both the outside edge and the interior edge. 

I'm using this simple code

Private Sub RunScript(ByVal x As Surface, ByVal y As Object, ByRef A As Object)

Dim b As brep = x.tobrep
Dim edge_list As New list (Of curve )

For Each e As brepedge In b.Edges
edge_list.add(e.duplicatecurve)
Next

a = edge_list

End Sub

and I only get the outside 4 edges. I want to get the interior circle as well.

Your "Brep Wireframe" component correctly gives the 4 outside curves and the inside circle. What RhinoCommon command are you using to provide this functionality. I've tried "Brep.GetWireFrame", "Brep.Edges" and all I keep getting is the outside square.

This seems pretty simple but I can't find the right Brep function.

Let me know.

Thanks

Kermin

Permalink Reply by David Rutten on October 9, 2014 at 1:31am

Surfaces do not support trims. You need to use the Brep type hint for the input.

Permalink Reply by kermin chok on October 10, 2014 at 10:02am

Oh Ok. That makes sense now.

Thanks.