Struct Polygon 

pub struct Polygon {
    pub points: Vec<Point>,
}

A closed polygon: a flat list of points plus an explicit count.

The flat representation keeps the hot triangulation loop free of indirection: the inner scan reads points[i] directly instead of chasing a per-vertex pointer.

Fields

points: Vec<Point>

The vertices, in order.

Implementations

impl Polygon

Inherent implementation of Polygon.

pub fn from_coordinates(coordinates: &[f32]) -> Self

Builds a polygon from a flat list of coordinates.

Arguments

• &[f32] - Shared reference to a [f32].

pub fn signed_area(&self) -> f64

Returns the polygon’s area, using the shoelace formula.

The sign of the result encodes the winding direction: a positive area means the vertices run clockwise in a y-down coordinate system.

Returns

• f64 - A 64-bit float.

pub fn is_clockwise(&self) -> bool

Returns true when the polygon’s vertices wind clockwise.

Returns

• bool - A boolean.

pub fn reverse(&mut self)

Reverses the winding order of the polygon’s vertices.

impl Polygon

pub fn get_points(&self) -> &Vec<Point>

pub fn get_mut_points(&mut self) -> &mut Vec<Point>

pub fn set_points(&mut self, val: Vec<Point>) -> &mut Self

Trait Implementations

impl Clone for Polygon

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 Polygon

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

Formats the value using the given formatter.

impl Default for Polygon

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Polygon

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Polygon