Struct Triangle2D 

pub struct Triangle2D {
    pub a: Point2D,
    pub b: Point2D,
    pub c: Point2D,
}

A triangle defined by three 2D vertices.

Fields

a: Point2D

First vertex.

b: Point2D

Second vertex.

c: Point2D

Third vertex.

Implementations

impl Triangle2D

pub const fn new(a: Point2D, b: Point2D, c: Point2D) -> Self

Creates a new Triangle2D.

pub fn signed_area(&self) -> f64

Computes the signed area using the shoelace formula.

Positive for counter-clockwise, negative for clockwise.

pub fn area(&self) -> f64

Computes the absolute area.

pub fn is_clockwise(&self) -> bool

Returns true if the vertices are arranged clockwise.

pub fn centroid(&self) -> Point2D

Computes the centroid (arithmetic mean of the three vertices).

pub fn perimeter(&self) -> f64

Returns the perimeter (sum of side lengths).

pub fn contains_point(&self, p: Point2D) -> bool

Tests whether a point is inside or on the boundary of the triangle.

Uses barycentric coordinates.

Trait Implementations

impl Clone for Triangle2D

fn clone(&self) -> Triangle2D

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Triangle2D

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

Formats the value using the given formatter.

impl PartialEq for Triangle2D

fn eq(&self, other: &Triangle2D) -> 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 Copy for Triangle2D

impl StructuralPartialEq for Triangle2D