Struct nannou::geom::tri::Tri

pub struct Tri<V = Default>(pub [V; 3]);

A triangle as three vertices.

Methods

impl<V> Tri<V> where
    V: Vertex, 

pub fn from_index_tri(vertices: &[V], indices: &[usize; 3]) -> Self where
    V: Vertex, 

Create a Tri by indexing into the given buffer.

Panics if any of the given indices are out of range of the given vertices slice.

pub fn from_vertices<I>(vertices: I) -> Option<Self> where
    I: IntoIterator<Item = V>, 

Create a Tri from the next three vertices yielded by the given vertices iterator.

Returns None if there were not at least 3 vertices in the given iterator.

Important traits for Vertices<V>

impl<V> Iterator for Vertices<V> where
    V: Clone,  type Item = V;

pub fn vertices(self) -> Vertices<V>

Produce an iterator yielding each of the vertices of the triangle.

pub fn centroid(self) -> V where
    V: EuclideanSpace, 

Produce the centroid of the triangle aka the "mean"/"average" of all the points.

pub fn map_vertices<F, V2>(self, map: F) -> Tri<V2> where
    F: FnMut(V) -> V2, 

Maps the underlying vertices to a new type and returns the resulting Tri.

impl<V> Tri<V> where
    V: Vertex2d, 

pub fn contains(&self, v: &V) -> bool where
    V: Vertex2d, 

Returns true if the given 2D vertex is contained within the 2D Tri.

Example

let a = Point2 { x: -0.5, y: 0.0 };
let b = Point2 { x: 0.0, y: 1.0 };
let c = Point2 { x: 0.5, y: -0.75 };
let tri = Tri([a, b, c]);
assert!(tri.contains(&Point2 { x: 0.0, y: 0.0 }));
assert!(!tri.contains(&Point2 { x: 3.0, y: 3.0 }));

pub fn bounding_rect(self) -> Rect<V::Scalar> where
    V: Vertex2d, 

The bounding Rect of the triangle.

pub fn bounding_cuboid(self) -> Cuboid<V::Scalar> where
    V: Vertex3d, 

The bounding Rect of the triangle.

Trait Implementations

impl<V: PartialEq> PartialEq<Tri<V>> for Tri<V>

fn eq(&self, other: &Tri<V>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Tri<V>) -> bool

This method tests for !=.

impl<V> AsRef<Tri<V>> for Tri<V> where
    V: Vertex, 

fn as_ref(&self) -> &Tri<V>

Performs the conversion.

impl<V> AsRef<[V; 3]> for Tri<V> where
    V: Vertex, 

fn as_ref(&self) -> &[V; 3]

Performs the conversion.

impl<S> From<Tri<Vector3<S>>> for Tri<S> where
    S: BaseFloat, 

fn from(tri: Tri<Point3<S>>) -> Self

Performs the conversion.

impl<V> From<[V; 3]> for Tri<V> where
    V: Vertex, 

fn from(points: [V; 3]) -> Self

Performs the conversion.

impl<V> From<(V, V, V)> for Tri<V> where
    V: Vertex, 

fn from((a, b, c): (V, V, V)) -> Self

Performs the conversion.

impl<V: Clone> Clone for Tri<V>

fn clone(&self) -> Tri<V>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<V: Eq> Eq for Tri<V>

impl<V> Into<[V; 3]> for Tri<V> where
    V: Vertex, 

fn into(self) -> [V; 3]

Performs the conversion.

impl<V> Into<(V, V, V)> for Tri<V> where
    V: Vertex, 

fn into(self) -> (V, V, V)

Performs the conversion.

impl<V: Copy> Copy for Tri<V>

impl<V: Debug> Debug for Tri<V>

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

Formats the value using the given formatter.

impl<V> Deref for Tri<V> where
    V: Vertex, 

type Target = [V; 3]

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<V: Hash> Hash for Tri<V>

fn hash<__HV: Hasher>(&self, state: &mut __HV)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].