Function to_bezier_segments 

pub fn to_bezier_segments<P: Blend>(
    knots: &KnotVector,
    control: &[P],
    tol: Tolerances,
) -> OgeomResult<Vec<BezierSegment<P>>>

Decompose a B-spline into its Bézier segments.

Returns one control-point array per segment, each of degree + 1 points, together with the parameter interval it covers. Many algorithms (plotting, intersection, conversion to exchange formats) are far simpler on Bézier pieces than on the whole spline.

Errors

As insert_knot.