Enum ExactCurveRefusal 

#[non_exhaustive]
pub enum ExactCurveRefusal {
    UnsupportedCurve,
    UnsupportedSurface,
    NonFinite,
    Degenerate,
    PartialOverlap,
    Undecided,
}

Why an exact curve intersection was not computed.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

UnsupportedCurve

The curve is not a line, circle or ellipse. B-spline curves go through the certified numeric path instead.

UnsupportedSurface

The surface is a B-spline surface or an unknown kind.

NonFinite

An input coordinate, radius or angle is NaN or infinite.

Degenerate

A frame is singular, a direction is zero, or a radius is not positive: there is no curve or surface to intersect.

PartialOverlap

The curve lies in the cone’s quadric but crosses its apex, so only part of it is on the modelled nappe: the overlap is a ray, which is neither a finite point set nor the whole curve.

Undecided

The roots along a traced section could not all be isolated with their multiplicity: a contact of order above eight, one rounding hides, or the work budget ran out. Unlike Degenerate, this says nothing of whether the curve meets the surface there.

Trait Implementations

impl Clone for ExactCurveRefusal

fn clone(&self) -> ExactCurveRefusal

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ExactCurveRefusal

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for ExactCurveRefusal

impl PartialEq for ExactCurveRefusal

fn eq(&self, other: &ExactCurveRefusal) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ExactCurveRefusal