Hi Danny, I think I have seen some function for approximating a curve with arcs (not lines, just arcs) but it seems to be an old function and possibly not used very often. I have no idea if it works very well or not.

It can be fairly difficult to do a nice job with that kind of a thing without generating too many arc pieces, I would not be surprised if it would need a custom replacement function to really do a good job of it.

- Michael