Sets the type of curve that results once the selected
edges are converted.
Open
Creates a curve with disconnected start and
end points.
Periodic
Creates a curve with connected start and end points.
If the selected edges do not form a closed loop, Maya will automatically
connect the two open endpoints.
Best Guess
Creates a Periodic curve if the selected edges form
a closed loop. Creates an Open curve otherwise.
Degree
The higher the Curve Degree, the more control you
have over the curve’s smoothness. The default setting (3 Cubic)
works well for most curves.
