I was debugging some .Net code where I loop through all the faces of a Brep (Essentially a Box which was cut - through boolean split- with a Nurbs Surface.
I was testing using the “.IsSurface” property of the brep face and got (5 out of 6 times) the answer “false”.
So, it the BrepFace is not a Surface, what is it then? What does this method test? Is it returning “false” if it is a trimmed surface?