Enum CurveDef 

pub enum CurveDef {
    Line {
        origin: P3,
        direction: P3,
    },
    Circle {
        frame: Frame,
        radius: f64,
    },
    Ellipse {
        frame: Frame,
        a: f64,
        b: f64,
    },
    Nurbs(NurbsCurve),
    Polyline(Vec<P3>),
    Conic {
        frame: Frame,
        kind: ConicKind,
    },
}

A curve as the file defines it.

Variants

Line

Fields

origin: P3

direction: P3

Circle

Fields

frame: Frame

radius: f64

Ellipse

Fields

frame: Frame

a: f64

b: f64

Nurbs(NurbsCurve)

Polyline(Vec<P3>)

Conic

A hyperbola or a parabola, in the plane of frame.

Fields

frame: Frame

kind: ConicKind

Implementations

impl CurveDef

pub fn shape(&self) -> Option<Shape>

Whether it is a circle or a line, and which.

impl CurveDef

pub fn edge( &self, from: P3, to: P3, closed: bool, uncertainty: f64, ) -> GeopResult<NurbCurve3D>

The curve from from to to — points on it, the curve running from one to the other the way it runs — as the kernel builds an edge: a line or an arc ending exactly at those points, or the piece of a B-spline between where they are on it. closed asks for the whole way round, from a point back to itself.

Where on a B-spline the points are is found by projecting them onto it; within uncertainty of an end of the curve, they are taken to be that end. That is the file’s own statement of which points are one: the trim it writes at an end means the end.

Trait Implementations

impl Clone for CurveDef

fn clone(&self) -> CurveDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CurveDef

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

Formats the value using the given formatter.