Struct Edge 

pub struct Edge<'m> { /* private fields */ }

An edge of a loop (EDGE_CURVE) — a curve bounded by two vertices.

Implementations

impl<'m> Edge<'m>

pub fn key(&self) -> EntityKey

This edge’s global identity (a Copy key for maps / deduplication; a shared edge reached from two faces yields the same key()).

pub fn start(&self) -> Option<Vertex<'m>>

pub fn end(&self) -> Option<Vertex<'m>>

pub fn curve(&self) -> Curve<'m>

The underlying (unbounded) curve this edge lies on.

pub fn same_sense(&self) -> bool

Whether the edge’s start → end direction agrees with its curve’s parameter direction (EDGE_CURVE same_sense). Edge::to_nurbs already accounts for it; an importer consuming the exact curve via Edge::curve composes it itself.

pub fn to_nurbs(&self) -> Option<NurbsCurve>

The NURBS (NurbsCurve) form of this edge: its geometry bounded between the two vertex points, in the edge’s direction (start → end). Contrast with Curve::to_nurbs, which converts the whole curve — here an unbounded line becomes the finite segment, a circle the arc between the vertices, and an edge whose vertices coincide (a closed edge) the whole closed curve.

Trait Implementations

impl<'m> Clone for Edge<'m>

fn clone(&self) -> Edge<'m>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'m> Copy for Edge<'m>