Class Vector

Hierarchy

Vector

Index

Constructors

constructor

Properties

x
y

Accessors

norm

Methods

Constructors

constructor

new Vector(x?: number, y?: number): Vector

- Defined in geometry/Vector.ts:6
Parameters
- Default value x: number = 0
- Default value y: number = 0
Returns Vector

Properties

x

x: number

y

y: number

Accessors

norm

get norm(): number

- Defined in geometry/Vector.ts:16
获取当前向量的模

Returns number

Methods

copy

copy(v: Vector): void

- Defined in geometry/Vector.ts:45
复制另外一个向量的值

Parameters
- v: Vector
Returns void

multiply

multiply(s: number): void

- Defined in geometry/Vector.ts:23
当前向量与标量相乘

Parameters
- s: number
Returns void

negative

negative(): void

- Defined in geometry/Vector.ts:38
Returns void

normalize

normalize(): void

- Defined in geometry/Vector.ts:31
归一化，不改变当前向量方向，使其模为1

Returns void

setTo

setTo(x: number, y: number): void

- Defined in geometry/Vector.ts:53
设置向量的值

Parameters
- x: number
- y: number
Returns void

Static add

add(v1: Vector, v2: Vector): Vector

- Defined in geometry/Vector.ts:103
向量加

Parameters
- v1: Vector
- v2: Vector
Returns Vector

Static angle

angle(v1: Vector, v2: Vector): number

- Defined in geometry/Vector.ts:124
求两个向量的夹角度数，返回角度值

Parameters
- v1: Vector
- v2: Vector
Returns number

Static dotProduct

dotProduct(v1: Vector, v2: Vector): number

- Defined in geometry/Vector.ts:117
向量点乘

Parameters
- v1: Vector
- v2: Vector
Returns number

Static down

down(): Vector

- Defined in geometry/Vector.ts:89
新建一个向量，Vector(0, 1)

Returns Vector

Static left

left(): Vector

- Defined in geometry/Vector.ts:75
新建一个向量，Vector(-1, 0)

Returns Vector

Static one

one(): Vector

- Defined in geometry/Vector.ts:61
新建一个向量，Vector(1, 1)

Returns Vector

Static projection

projection(v1: Vector, v2: Vector): number

- Defined in geometry/Vector.ts:134
Parameters
- v1: Vector
- v2: Vector
Returns number

Static right

right(): Vector

- Defined in geometry/Vector.ts:82
新建一个向量，Vector(1, 0)

Returns Vector

Static subtract

subtract(v1: Vector, v2: Vector): Vector

- Defined in geometry/Vector.ts:110
向量减

Parameters
- v1: Vector
- v2: Vector
Returns Vector

Static up

up(): Vector

- Defined in geometry/Vector.ts:96
新建一个向量，Vector(0, -1)

Returns Vector

Static zero

zero(): Vector

- Defined in geometry/Vector.ts:68
新建一个向量，Vector(0, 0)

Returns Vector

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