Struct CurveOnSurface 

pub struct CurveOnSurface { /* private fields */ }

A pcurve composed with the surface it is drawn on: the space curve a trimming boundary actually traces.

Everything is exact: the chain rule composes the pcurve’s derivatives with the surface’s, both of which the vocabulary carries to second order.

Implementations

impl CurveOnSurface

pub const fn new(pcurve: PlanarCurve, surface: SurfaceGeometry) -> Self

The composition of pcurve with surface.

pub const fn pcurve(&self) -> &PlanarCurve

The curve in parameter space.

pub const fn surface(&self) -> &SurfaceGeometry

The surface the pcurve is drawn on.

Trait Implementations

impl Clone for CurveOnSurface

fn clone(&self) -> CurveOnSurface

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Curve3d for CurveOnSurface

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 CurveOnSurface

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

Formats the value using the given formatter.

impl PartialEq for CurveOnSurface

fn eq(&self, other: &CurveOnSurface) -> 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 CurveOnSurface