Struct Circle2D 

pub struct Circle2D { /* private fields */ }

A 2D circle defined by center and radius.

Parameterized as P(t) = center + radius * (cos(t), sin(t)). t ranges from 0 to 2π for a full circle.

Implementations

impl Circle2D

pub fn new(center: Point2, radius: f64) -> Result<Self, MathError>

Creates a new 2D circle.

Errors

Returns MathError::ParameterOutOfRange if radius is not positive.

pub fn evaluate(&self, t: f64) -> Point2

Evaluates the circle at parameter t (radians).

pub fn tangent(&self, t: f64) -> Vec2

Returns the tangent vector at parameter t.

pub fn circumference(&self) -> f64

Returns the circumference.

pub fn project(&self, point: Point2) -> f64

Projects a point onto the circle, returning the closest parameter.

pub const fn center(&self) -> Point2

Returns the center.

pub const fn radius(&self) -> f64

Returns the radius.

Trait Implementations

impl Clone for Circle2D

fn clone(&self) -> Circle2D

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Circle2D

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Circle2D

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Circle2D

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.