Class Vector3

attention: 赋值操作优先使用set,不要直接赋值私有变量

Hierarchy

Vector3

Index

Constructors

constructor

Properties

Accessors

Constructors

constructor

new Vector3(x?: number, y?: number, z?: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:23
Parameters
- Optional x: number
- Optional y: number
- Optional z: number
Returns Vector3

Properties

Protected _x

_x: number

Protected _y

_y: number

Protected _z

_z: number

Accessors

isVector3

get isVector3(): boolean

- Defined in glb/dist/math/Vector3.d.ts:24
Returns boolean

x

get x(): number
set x(value: number): void

- Defined in glb/dist/math/Vector3.d.ts:9
Returns number
- Defined in glb/dist/math/Vector3.d.ts:10
Parameters
- value: number
Returns void

y

get y(): number
set y(value: number): void

- Defined in glb/dist/math/Vector3.d.ts:12
Returns number
- Defined in glb/dist/math/Vector3.d.ts:13
Parameters
- value: number
Returns void

z

get z(): number
set z(value: number): void

- Defined in glb/dist/math/Vector3.d.ts:15
Returns number
- Defined in glb/dist/math/Vector3.d.ts:16
Parameters
- value: number
Returns void

Methods

add

add(a: Vector3, b?: Vector3): Vector3

- Defined in glb/dist/math/Vector3.d.ts:66
向量相加

Parameters
- a: Vector3
- Optional b: Vector3
  
  若b未传入，则计算this + a
Returns Vector3

addScalar

addScalar(s: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:71
标量加法

Parameters
- s: number
  
  标量
Returns Vector3

angleTo

angleTo(v: Vector3): number

- Defined in glb/dist/math/Vector3.d.ts:170
与另一个向量的夹角

Parameters
- v: Vector3
Returns number

clone

clone(): Vector3

- Defined in glb/dist/math/Vector3.d.ts:54
克隆

Returns Vector3
返回一个与当前Vector3相等的Vector3

copy

copy(target: Vector3): Vector3

- Defined in glb/dist/math/Vector3.d.ts:49
复制

Parameters
- target: Vector3
  
  被复制的Vector3
Returns Vector3

cross

cross(b: Vector3): Vector3

- Defined in glb/dist/math/Vector3.d.ts:120
叉乘: 计算this ✕ b

Parameters
- b: Vector3
Returns Vector3

crossVectors

crossVectors(a: Vector3, b: Vector3): Vector3

- Defined in glb/dist/math/Vector3.d.ts:124
两向量叉乘: this = a ✕ b

Parameters
- a: Vector3
- b: Vector3
Returns Vector3

distanceTo

distanceTo(b: Vector3): number

- Defined in glb/dist/math/Vector3.d.ts:136
计算this到b的欧氏距离

Parameters
- b: Vector3
Returns number

divide

divide(a: Vector3, b?: Vector3): Vector3

- Defined in glb/dist/math/Vector3.d.ts:99
向量除法

Parameters
- a: Vector3
- Optional b: Vector3
  
  若b未传入，则计算this / a
Returns Vector3

divideScalar

divideScalar(s: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:104
标量除法

Parameters
- s: number
  
  标量
Returns Vector3

dot

dot(b: Vector3): number

- Defined in glb/dist/math/Vector3.d.ts:109
点积: 计算this·b

Parameters
- b: Vector3
Returns number

isEqual

isEqual(target: Vector3): boolean

- Defined in glb/dist/math/Vector3.d.ts:60
判等

Parameters
- target: Vector3
  
  被比较的Vector3
Returns boolean
是否相等，相等返回true，否则返回false

length

length(): number

- Defined in glb/dist/math/Vector3.d.ts:128
欧氏长度

Returns number

lerp

lerp(v: Vector3, alpha: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:171
Parameters
- v: Vector3
- alpha: number
Returns Vector3

mulMat3

mulMat3(m3: Matrix3): Vector3

- Defined in glb/dist/math/Vector3.d.ts:148
左乘Mat3: Mat3 ✕ this

Parameters
- m3: Matrix3
Returns Vector3

mulMat4

mulMat4(m4: Matrix4): Vector3

- Defined in glb/dist/math/Vector3.d.ts:153
左乘Mat4: Mat4 ✕ this，this自动扩充为（this.x, this.y, this.z, 1）

Parameters
- m4: Matrix4
Returns Vector3

multiply

multiply(a: Vector3, b?: Vector3): Vector3

- Defined in glb/dist/math/Vector3.d.ts:88
向量乘法

Parameters
- a: Vector3
- Optional b: Vector3
  
  若b未传入，则计算this * a
Returns Vector3

multiplyScalar

multiplyScalar(s: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:93
标量乘法

Parameters
- s: number
  
  标量
Returns Vector3

normalize

normalize(): Vector3

- Defined in glb/dist/math/Vector3.d.ts:144
归一化

Returns Vector3

set

set(x: number, y: number, z: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:22
更新赋值

Parameters
- x: number
  
  x值
- y: number
  
  y值
- z: number
Returns Vector3

setFromArray

setFromArray(val: number[]): Vector3

- Defined in glb/dist/math/Vector3.d.ts:44
使用数组赋值

Parameters
- val: number[]
  
  数组
Returns Vector3

setX

setX(v: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:29
设置x分量

Parameters
- v: number
  
  x新值
Returns Vector3

setY

setY(v: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:34
设置y分量

Parameters
- v: number
  
  y新值
Returns Vector3

setZ

setZ(v: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:39
设置z分量

Parameters
- v: number
  
  z新值
Returns Vector3

squaredDistanceTo

squaredDistanceTo(b: Vector3): number

- Defined in glb/dist/math/Vector3.d.ts:140
计算this到b的欧氏距离平方

Parameters
- b: Vector3
Returns number

squaredLength

squaredLength(): number

- Defined in glb/dist/math/Vector3.d.ts:132
长度的平方

Returns number

sub

sub(a: Vector3, b?: Vector3): Vector3

- Defined in glb/dist/math/Vector3.d.ts:77
向量减法

Parameters
- a: Vector3
- Optional b: Vector3
  
  若b未传入，则计算this - a
Returns Vector3

subScalar

subScalar(s: number): Vector3

- Defined in glb/dist/math/Vector3.d.ts:82
标量减法

Parameters
- s: number
  
  标量
Returns Vector3

toArrays

toArrays(): number[]

- Defined in glb/dist/math/Vector3.d.ts:164
转为数组[this.x, this.y, this.z]

Returns number[]

transformDirection

transformDirection(m4: Matrix4): Vector3

- Defined in glb/dist/math/Vector3.d.ts:160
根据变换矩阵更新向量方向

Parameters
- m4: Matrix4
  
  变换矩阵
Returns Vector3
变换方向并归一化后的Vector3

transformMat4

transformMat4(m4: Matrix4): Vector3

- Defined in glb/dist/math/Vector3.d.ts:154
Parameters
- m4: Matrix4
Returns Vector3

Static dotVectors

dotVectors(a: Vector3, b: Vector3): number

- Defined in glb/dist/math/Vector3.d.ts:115
点积 a·b

Parameters
- a: Vector3
  
  点积运算左算子
- b: Vector3
  
  点积运算右算子
Returns number

Static transformCoordinate

transformCoordinate(v: Vector3, m: Matrix4, out: Vector3): void

- Defined in glb/dist/math/Vector3.d.ts:7
Parameters
- v: Vector3
- m: Matrix4
- out: Vector3
Returns void

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