Circle | Math Library

表示二维世界中的一个圆

Hierarchy

Circle

Index

Constructors

constructor

Properties

Methods

Constructors

constructor

new Circle(center?: Vector2, radius?: number): Circle

- Defined in unit/circle/index.ts:38
Parameters
- Optional center: Vector2
  
  圆心
- Optional radius: number
  
  半径
Returns Circle

Properties

center

center: Vector2 = ...

圆心

radius

radius: number = ...

半径

Methods

clone

clone(): Circle

- Defined in unit/circle/index.ts:74
复制当前 Circle

Returns Circle

isPointInsideCircle

isPointInsideCircle(point: Vector2, includeBorder?: boolean, tolerance?: number): boolean

- Defined in unit/circle/index.ts:102
点是否在圆内

Parameters
- point: Vector2
  
  目标点
- includeBorder: boolean = false
  
  范围是否包含圆周
- tolerance: number = ...
  
  误差
Returns boolean

isPointOnCircle

isPointOnCircle(point: Vector2, tolerance?: number): boolean

- Defined in unit/circle/index.ts:92
点是否在圆周上

Parameters
- point: Vector2
  
  目标点
- tolerance: number = ...
  
  误差
Returns boolean

setCenter

setCenter(center: Vector2): Circle

- Defined in unit/circle/index.ts:56
设置圆心

Parameters
- center: Vector2
  
  圆心
Returns Circle

当前 circle

setRadius

setRadius(radius: number): Circle

- Defined in unit/circle/index.ts:66
设置半径

Parameters
- radius: number
  
  半径
Returns Circle

当前 circle

toPoints

toPoints(length: number): Vector2[]

- Defined in unit/circle/index.ts:112
获取圆周的散点集

Parameters
- length: number
  
  目标的散点数量
Returns Vector2[]

散点集

translate

translate(v: Vector2): Circle

- Defined in unit/circle/index.ts:83
平移圆

Parameters
- v: Vector2
  
  平移向量
Returns Circle

平移后的新圆

Static createByThreePoint

createByThreePoint(p1: Vector2, p2: Vector2, p3: Vector2): Circle

- Defined in unit/circle/index.ts:17
通过不重复的三个点构造一个圆

Parameters
- p1: Vector2
  
  点1
- p2: Vector2
  
  点2
- p3: Vector2
  
  点3
Returns Circle

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