Function restrict_degree 

pub fn restrict_degree(
    model: &mut Model,
    shape: &Shape,
    max_degree: usize,
    tolerance: f64,
    tol: Tolerances,
) -> OgeomResult<Built>

shape with every spline curve and surface of degree above max_degree refitted at that degree, each within tolerance of what it replaces, and every trim re-derived. Analytic geometry has no degree to restrict and stays as it is.

Errors

OgeomError::Construction if max_degree is zero or tolerance is not a distance; OgeomError::NotDone if a fit cannot reach tolerance; as ogeom_algo::restate_geometry.