Struct SectionCurve 

pub struct SectionCurve {
    pub curve: Curve,
    pub on_a: Option<PlanarCurve>,
    pub on_b: Option<PlanarCurve>,
    pub tolerance: f64,
    pub exact: bool,
    pub closed: bool,
    pub tangential: bool,
}

One curve of a section, with its parameter-space descriptions.

Fields

curve: Curve

The curve in space.

on_a: Option<PlanarCurve>

The curve in the first surface’s parameter space, where it has one.

Always present for a fitted curve. For an exact curve, present when the projection has a closed form (a line on a plane, a circle on the cylinder it wraps) and None where it does not, which is a statement about the projection rather than about the curve.

on_b: Option<PlanarCurve>

The same, on the second surface.

tolerance: f64

How far this curve may sit from the true intersection.

Zero for an exact curve. For a fitted one, the trace’s chord tolerance plus the fit’s reported error: the sum of the stated parts.

exact: bool

Whether the curve came from a closed form.

closed: bool

Whether it is a closed loop.

tangential: bool

Whether the surfaces touch along this curve rather than crossing it.

A tangential contact is a real curve (the two surfaces meet there, and a drawing has to show it), but it carries no boundary parity: neither surface passes through the other, so nothing is inside on one side and outside on the other. Consumers that classify by crossing must leave these out of that arithmetic; consumers that draw or measure contact want them.

Trait Implementations

impl Clone for SectionCurve

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SectionCurve

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

Formats the value using the given formatter.

impl PartialEq for SectionCurve

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SectionCurve