pub fn remove_surface_knot_u(
surface: &BSplineSurface,
parameter: Scalar,
times: u32,
tolerance: Scalar,
) -> GeomResult<SurfaceKnotRemoval>Expand description
Remove the u knot parameter up to times times, keeping the surface
within tolerance of the input.
A copy is removed only when it can be removed from every column of the
control net with the accumulated deviation bound still within
tolerance; removal stops at the first copy that cannot. A knot that
carries shape is therefore left in place (removed == 0), never
approximated away.
ยงErrors
An invalid surface, a tolerance that is negative or not finite, or a
parameter that is not an interior u knot.