Struct BendStation 

pub struct BendStation {
    pub station: usize,
    pub point: Vec3,
    pub curvature: f64,
    pub radius: f64,
    pub reach: f64,
    pub ratio: f64,
}

One station’s tight-bend reading: what the path does there and how far the section reaches into it.

The quantity that decides the sweep is BendStation::ratio — reach·κ, the same ρκ the fillet’s canal surface folds at. A section point offset d towards the centre of the osculating circle advances (1 − d·κ) per unit of path, so at d·κ = 1 it stops and past it it goes BACKWARDS: the swept envelope has turned back through itself and the solid is the envelope trimmed at that self-intersection, not the loft through the crossing sections.

Fields

station: usize

The station’s index in the sweep’s own station list.

point: Vec3

Where it is on the path.

curvature: f64

The path’s curvature κ there (zero on a straight piece).

radius: f64

The path’s radius of curvature ρ = 1/κ, f64::INFINITY where straight.

reach: f64

How far the placed section reaches towards the centre of the bend — its support in the curvature-normal direction. Negative when the whole section sits on the OUTSIDE of the bend, zero where the path is straight.

ratio: f64

reach·κ. < 1 builds; ≥ 1 folds.

Trait Implementations

impl Clone for BendStation

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 BendStation

impl Debug for BendStation

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

Formats the value using the given formatter.