Function iso_curve_at_u

pub fn iso_curve_at_u(
    surface: &BSplineSurface,
    parameter: Scalar,
) -> GeomResult<BSplineCurve3>

The iso-curve u = parameter, parametrised by v.

Exact: its control points are the columns’ homogeneous points blended by the u basis at parameter, so it has the surface’s v degree and knots, and is rational exactly when the surface is.

Errors

An invalid surface, or a parameter outside the u domain.