Enum ExactCurveParameter

#[non_exhaustive]
pub enum ExactCurveParameter {
    Line(RealRoot),
    HalfAngle(RealRoot),
    Antipode,
    Certified(Isolated),
}

Where on the first curve an intersection lies, exactly.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Line(RealRoot)

A line’s own parameter t (point origin + t * direction).

HalfAngle(RealRoot)

A conic’s half-angle parameter w = tan(theta / 2).

Antipode

A conic’s point at theta = pi, where w is infinite.

Certified(Isolated)

A section-family curve’s own parameter, isolated by certified subdivision (ADR 0077) and refined to the last bits.

Implementations

impl ExactCurveParameter

pub fn approx(&self) -> f64

The curve parameter as a double, for output: t for a line, the angle theta in [0, 2 pi) for a conic.

Trait Implementations

impl Clone for ExactCurveParameter

fn clone(&self) -> ExactCurveParameter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExactCurveParameter

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

Formats the value using the given formatter.

impl PartialEq for ExactCurveParameter

fn eq(&self, other: &ExactCurveParameter) -> 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 Eq for ExactCurveParameter

impl StructuralPartialEq for ExactCurveParameter