split a mesh with an arc

[Tom Krowka]

Am trying to split a mesh with an arc. Won't work and don't know why. Works fine with a line, but not an arc. GRRRRRRRR. Two elements are on the the same layer, unlocked.

Thanks Tom

[adamsb]

Ralph wrote:
If you split a polygon with a line where the line doesn't cross the entire polygon, it's easy to extrapolate the line direction as far as you like. This isn't true of an arc or poly-line. If either don't clearly define 2 sides across the entire polygon, how do you handle the ends? What if the poly-line is self-intersecting? That's why you need to form a complete polygon to split one against the other – your intentions are unambiguous.

I agree. But setting up the program to force you to make the polyline completely encompass the mesh to work is still less overall work for us users than having to slowly remove specific portions of a mesh and then use a copy to infill. I'd still like this method better is all.