Struct Circle 

pub struct Circle {
    pub center: Vec2,
    pub radius: f32,
}

2D 圆形

Fields

center: Vec2

圆心

radius: f32

半径

Implementations

impl Circle

pub fn new(center: Vec2, radius: f32) -> Circle

创建新的圆形

参数

• center: 圆心位置
• radius: 半径（必须为非负数）

示例

use anvilkit_core::math::geometry::Circle;
use glam::Vec2;
 
let circle = Circle::new(Vec2::new(5.0, 5.0), 3.0);
assert_eq!(circle.area(), std::f32::consts::PI * 9.0);

pub fn area(&self) -> f32

获取圆的面积

pub fn circumference(&self) -> f32

获取圆的周长

pub fn contains(&self, point: Vec2) -> bool

检查点是否在圆内

pub fn intersects(&self, other: &Circle) -> bool

检查是否与另一个圆相交

pub fn intersects_rect(&self, rect: &Rect) -> bool

检查是否与矩形相交

pub fn bounding_rect(&self) -> Rect

获取圆的边界矩形

Trait Implementations

impl Clone for Circle

fn clone(&self) -> Circle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Circle

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

Formats the value using the given formatter.

impl PartialEq for Circle

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

impl StructuralPartialEq for Circle