Box2 | Math Library

表示一个二维平面中的 AABB 盒子

+---------+ | | | | | | +---------+

Class representing a bounding box in Two-dimensional coordinate system

Hierarchy

Box2

Index

Constructors

constructor

Properties

max
min

Accessors

Methods

Constructors

constructor

new Box2(): Box2
new Box2(min: Vector2, max: Vector2): Box2

- Defined in unit/box2/index.ts:73
Returns Box2
- Defined in unit/box2/index.ts:75
Parameters
- min: Vector2
  
  Box2 的最小顶点（左下角）
- max: Vector2
  
  Box2 的最大顶点（右上角）
Returns Box2

Properties

max

max: Vector2 = ...

Box2 的最大顶点（右上角）

min

min: Vector2 = ...

Box2 的最小顶点（左下角）

Accessors

center

get center(): Vector2

- Defined in unit/box2/index.ts:137
Box2 的中心点

Returns Vector2

points

get points(): Vector2[]

- Defined in unit/box2/index.ts:116
Box2 的 4 个顶点

当前坐标系为，X向左为正，Y向上为正时，其4个顶点相对位置如下：

3---------2 | | | | | | 0---------1

Returns Vector2[]

size

get size(): Vector2

- Defined in unit/box2/index.ts:130
Box2 的尺寸

Returns Vector2

Methods

checkValid

checkValid(): boolean

- Defined in unit/box2/index.ts:144
检查当前 Box2 是否合法

Returns boolean

setMax

setMax(max: Vector2): void

- Defined in unit/box2/index.ts:101
设置 Box2 的最大顶点

Parameters
- max: Vector2
  
  Vector2
Returns void

setMin

setMin(min: Vector2): void

- Defined in unit/box2/index.ts:93
设置 Box2 的最小顶点

Parameters
- min: Vector2
  
  Vector2
Returns void

Static createByGeometry

createByGeometry(center: Vector2, size: Vector2): Box2

- Defined in unit/box2/index.ts:58
根据几何信息计算一个 Box2

Calculate the Box2 base on geometric information

Parameters
- center: Vector2
  
  中心点
- size: Vector2
  
  尺寸
Returns Box2

A Box2

Static createByPoints

createByPoints(points: Vector2[]): Box2

- Defined in unit/box2/index.ts:27
计算包围所有点的最小 Box2

Calculate the smallest Box2 surrounding all points

Parameters
- points: Vector2[]
  
  目标点
Returns Box2

A Box2

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