Class: Rectangle

矩形类型，四个核心属性：x、y、width、height

和 Node 节点不同，Rect的坐标原点在左上角，不在中间

Table of contents

Constructors

• constructor

Properties

• height
• width
• x
• y

Accessors

• bottom
• center
• left
• middle
• right
• top

Methods

• clone
• contains
• containsRect
• equals
• getBottom
• getCenter
• getRect
• getRight
• isEmpty
• isIntersectRect
• setTo
• setToEmpty
• toPoints
• toString
• normal
• union
• unionRects

Constructors

constructor

new Rectangle(x?, y?, width?, height?)

Parameters

Name	Type	Default value
x	number	0
y	number	0
width	number	0
height	number	0

Properties

height

height: number = 0

---

width

width: number = 0

---

x

x: number = 0

---

y

y: number = 0

Accessors

bottom

get bottom(): number

Returns

number

set bottom(v): void

Parameters

Name	Type
v	number

Returns

void

---

center

get center(): number

Returns

number

set center(v): void

Parameters

Name	Type
v	number

Returns

void

---

left

get left(): number

Returns

number

set left(v): void

Parameters

Name	Type
v	number

Returns

void

---

middle

get middle(): number

Returns

number

set middle(v): void

Parameters

Name	Type
v	number

Returns

void

---

right

get right(): number

Returns

number

set right(v): void

Parameters

Name	Type
v	number

Returns

void

---

top

get top(): number

Returns

number

set top(v): void

Parameters

Name	Type
v	number

Returns

void

Methods

clone

clone(): Rectangle

Returns

Rectangle

---

contains

contains(x, y): boolean

Parameters

Name	Type
x	number
y	number

Returns

boolean

---

containsRect

containsRect(rect): boolean

Parameters

Name	Type
rect	Rectangle

Returns

boolean

---

equals

equals(rect): boolean

Parameters

Name	Type
rect	Rectangle

Returns

boolean

---

getBottom

getBottom(): number

Returns

number

---

getCenter

getCenter(): Object

Returns

Object

Name	Type
x	number
y	number

---

getRect

getRect(): Rectangle

Returns

Rectangle

---

getRight

getRight(): number

Returns

number

---

isEmpty

isEmpty(): boolean

Returns

boolean

---

isIntersectRect

isIntersectRect(rect): boolean

Parameters

Name	Type
rect	any

Returns

boolean

---

setTo

setTo(x?, y?, width?, height?): void

Parameters

Name	Type	Default value
x	number	0
y	number	0
width	number	0
height	number	0

Returns

void

---

setToEmpty

setToEmpty(): void

Returns

void

---

toPoints

toPoints(): { x: number ; y: number }[]

Returns

{ x: number ; y: number }[]

---

toString

toString(): string

Returns

string

---

normal

Static normal(center, p): number[]

Parameters

Name	Type
center	PointLike
p	PointLike

Returns

number[]

---

union

Static union(out, rect): Rectangle

Parameters

Name	Type
out	Rectangle
rect	Rectangle

Returns

Rectangle

---

unionRects

Static unionRects(rects): Rectangle

Parameters

Name	Type
rects	Rectangle[]

Returns

Rectangle