Struct CircleCurve 

pub struct CircleCurve { /* private fields */ }

A circle, parameterized by angle.

Implementations

impl CircleCurve

pub const fn new(circle: Circle) -> Self

A full circle, running counter-clockwise about its frame’s z.

pub const fn circle(&self) -> Circle

The underlying circle.

pub const fn is_reversed(&self) -> bool

Whether the curve runs backwards along its underlying circle.

Part of the curve’s state and not derivable from its circle, so anything that has to reproduce this curve exactly (the native format above all) needs to be able to read it.

pub fn forward(&self, tol: Tolerances) -> OgeomResult<Self>

The same curve, the same point at every parameter, running forward: a reversed circle is its circle’s frame turned half a turn about its x axis, the angle measured from the same x towards -y.

Errors

None in practice: the turned frame is the given one’s axes negated.

Trait Implementations

impl Clone for CircleCurve

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CircleCurve

impl Curve3d for CircleCurve

fn domain(&self) -> (f64, f64)

The parameter interval over which the curve is defined.

fn point_at(&self, u: f64, tol: Tolerances) -> OgeomResult<Point>

The point at u.

fn d1_at(&self, u: f64, tol: Tolerances) -> OgeomResult<Vector>

The first derivative at u.

fn derivatives_at( &self, u: f64, n: usize, tol: Tolerances, ) -> OgeomResult<Vec<Vector>>

Derivatives up to order n, with result[0] the point itself.

fn kind(&self) -> CurveKind

What kind of curve this is.

fn continuity(&self) -> Continuity

How smooth the curve is across its domain.

fn is_closed(&self, _tol: Tolerances) -> bool

Whether the curve’s ends meet.

fn is_periodic(&self) -> bool

Whether the curve continues past its domain by repeating.

fn tangent_at(&self, u: f64, tol: Tolerances) -> OgeomResult<Direction>

The unit tangent at u.

fn curvature_at(&self, u: f64, tol: Tolerances) -> OgeomResult<f64>

The curvature at u.

fn start(&self, tol: Tolerances) -> OgeomResult<Point>

The start point.

fn end(&self, tol: Tolerances) -> OgeomResult<Point>

The end point.

fn normalize_parameter(&self, u: f64, tol: Tolerances) -> OgeomResult<f64>

Bring u into the domain, wrapping if the curve is periodic.

impl Debug for CircleCurve

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

Formats the value using the given formatter.

impl From<CircleCurve> for Curve

fn from(c: CircleCurve) -> Self

Converts to this type from the input type.

impl PartialEq for CircleCurve

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CircleCurve