Struct Triangle2

pub struct Triangle2 {
    pub a: DVec2,
    pub b: DVec2,
    pub c: DVec2,
}

A two-dimensional triangle.

Corner order sets the winding, which signed_area reports: positive is counter-clockwise. Degenerate triangles are representable.

Fields

a: DVec2

First corner.

b: DVec2

Second corner.

c: DVec2

Third corner.

Implementations

impl Triangle2

pub const fn new(a: DVec2, b: DVec2, c: DVec2) -> Triangle2

Construct a triangle without validating it.

pub fn signed_area2(&self) -> f64

Twice the signed area: positive counter-clockwise, negative clockwise.

Returned doubled and unscaled because this is the same quantity as the orientation determinant, so a caller testing which side of ab the point c lies on can use it directly without a multiply that would only add rounding.

pub fn signed_area(&self) -> f64

Signed area: positive counter-clockwise, negative clockwise.

pub fn area(&self) -> f64

Area, always non-negative.

pub fn centroid(&self) -> DVec2

Centroid of the three corners.

Trait Implementations

impl Clone for Triangle2

fn clone(&self) -> Triangle2

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Triangle2

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

Formats the value using the given formatter.

impl PartialEq for Triangle2

fn eq(&self, other: &Triangle2) -> 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 Triangle2

impl StructuralPartialEq for Triangle2