Struct Polygon

pub struct Polygon<S: Clone> {
    pub vertices: Vec<Vertex>,
    pub shared: Option<S>,
    pub plane: Plane,
}

A convex polygon, defined by a list of vertices and a plane.

• S is the generic “shared” data type, stored as Option<S>.

Fields

vertices: Vec<Vertex>

shared: Option<S>

plane: Plane

Implementations

impl<S: Clone> Polygon<S>

pub fn new(vertices: Vec<Vertex>, shared: Option<S>) -> Self

Create a polygon from vertices

pub fn flip(&mut self)

pub fn triangulate(&self) -> Vec<[Vertex; 3]>

Triangulate this polygon into a list of triangles, each triangle is [v0, v1, v2].

pub fn subdivide_triangles(&self, levels: u32) -> Vec<[Vertex; 3]>

Subdivide this polygon into smaller triangles. Returns a list of new triangles (each is a [Vertex; 3]).

pub fn recalc_plane_and_normals(&mut self)

Recompute this polygon’s plane from the first 3 vertices, then set all vertices’ normals to match that plane (flat shading).

pub fn shared_data(&self) -> Option<&S>

Returns a reference to the shared data, if any.

pub fn shared_data_mut(&mut self) -> Option<&mut S>

Returns a mutable reference to the shared data, if any.

pub fn set_shared_data(&mut self, data: S)

Sets the shared data to the given value.

Trait Implementations

impl<S: Clone + Clone> Clone for Polygon<S>

fn clone(&self) -> Polygon<S>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<S: Debug + Clone> Debug for Polygon<S>

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

Formats the value using the given formatter.