For a Closed BSpline Curve , I can use traversableelement and chainable element objects in VBA but this objects don't contains enough methods. How can I take a B-Spline curve as object, except Traver. and Chainble objects.
I need the centorid of a bspline and Intersectionshape of a Bspline with a circle.
And my second question , why the closed bspline curve is not a closedelement?