Enum Curve3

#[non_exhaustive]
pub enum Curve3 {
    Line(Line3),
    Circle(Circle3),
    Ellipse(Ellipse3),
    Polyline(Polyline3),
    BSpline(BSplineCurve3),
    Intrinsic(Intrinsic3),
    Elevated(Elevated3),
    RuledSection(RuledSection3),
    TorusSection(TorusSection3),
    ImplicitSection(ImplicitSection3),
    PairSection(PairSection3),
}

Atomic three-dimensional curve values.

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.

Line(Line3)

Infinite line.

Circle(Circle3)

Circle in a plane.

Ellipse(Ellipse3)

Ellipse in a plane.

Polyline(Polyline3)

Piecewise linear curve.

BSpline(BSplineCurve3)

Polynomial or rational B-spline.

Intrinsic(Intrinsic3)

Curve given by its natural equations: curvature AND torsion as functions of arc length, anchored to a start frame. Carries helices and general space spirals as exact values.

Elevated(Elevated3)

A planar curve paired with an elevation law: the exact composition an alignment centreline is authored as. See Elevated3.

RuledSection(RuledSection3)

A quadric’s cut across a cylinder or cone: the carrier evaluated along a QuadraticGraph2. See RuledSection3 (ADR 0076).

TorusSection(TorusSection3)

A plane’s or sphere’s cut across a torus: the torus evaluated along an AngleGraph2. See TorusSection3 (ADR 0076).

ImplicitSection(ImplicitSection3)

An ImplicitCurve2 on its analytic carrier: the section of a torus by a cylinder, cone or torus, and any other analytic pair with no closed form. See ImplicitSection3 (ADR 0077).

PairSection(PairSection3)

Where two B-spline surfaces meet, carried by nodes on both and defined between them by the surfaces themselves. See PairSection3 (ADR 0077).

Trait Implementations

impl Clone for Curve3

fn clone(&self) -> Curve3

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Curve3

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

Formats the value using the given formatter.

impl PartialEq for Curve3

fn eq(&self, other: &Curve3) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Curve3