Struct Outline

pub struct Outline { /* private fields */ }

Represent closed circuit of vertices

Implementations

impl Outline

pub fn new(vertices: impl Iterator<Item = Vec2>) -> Self

Creates new outline.

Arguments

• vertices - iterator of vertices. They MUST follow in order, which guarantee:

1. when follow from i to i+1 vertex, inner area of polygon MUST be at left side;

pub fn prev_that_next(&self, i: isize) -> (Vec2, Vec2, Vec2)

Tuple of (i-1, i, i+1) vertices;

• i - index of vertex. May be negative;

pub fn to_neighbors(&self, i: isize) -> (Vec2, Vec2)

Tuple of vectors to previous and to next vertex for i-th vertex;

• i - index of vertex. May be negative;

pub fn convex(&self, i: isize) -> bool

Test if angle is convex;

• i - index of vertex. May be negative;

pub fn concave(&self, i: isize) -> bool

Test if angle is concave;

• i - index of vertex. May be negative;

pub fn inner_angle_cos_sin(&self, i: isize) -> (f32, f32)

sin() and cos() for counter-clockwise angle between vector to next vertex and vector to previous.

Arguments

• i - index of vertex. May be negative;

pub fn inner_angle(&self, i: isize) -> f32

Inner angle for vertex i-th vertex

Arguments

• i - index of vertex. May be negative;

pub fn outer_angle(&self, i: isize) -> f32

Outer angle for vertex i-th vertex

Arguments

• i - index of vertex. May be negative;

Trait Implementations

impl Clone for Outline

fn clone(&self) -> Outline

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Outline

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

Formats the value using the given formatter.

impl Default for Outline

fn default() -> Outline

Returns the “default value” for a type.

impl Index<isize> for Outline

type Output = Vec2

The returned type after indexing.

fn index(&self, i: isize) -> &Vec2

Performs the indexing (container[index]) operation.