Class Matrix3x3

Matrix3x3 类表示一个转换矩阵，该矩阵确定二维 (2D) 显示对象的位置和方向。该矩阵可以执行转换功能，包括平移（沿 x 和 y 轴重新定位）、旋转和缩放（调整大小）。

 ---                                   ---
 |   scaleX      0         0    |   x轴
 |     0       scaleY      0    |   y轴
 |     tx        ty        1    |   平移
 ---                                   ---

 ---                                   ---
 |     0         1         2    |   x轴
 |     3         4         5    |   y轴
 |     6         7         8    |   平移
 ---                                   ---

Hierarchy

Matrix3x3

Index

Constructors

constructor

Properties

elements

Constructors

constructor

new Matrix3x3(elements?: NmberArray9): Matrix3x3
构建3x3矩阵
Parameters
- elements: NmberArray9 = ...
  
  九个元素的数组
Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:40

Properties

elements

elements: NmberArray9

长度为9的向量，包含所有的矩阵元素

Methods

copy

copy(source: Matrix3x3): Matrix3x3
将另一个矩阵复制到这个矩阵对象中
Parameters
- source: Matrix3x3
Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:309

formMatrix4x4

formMatrix4x4(matrix4x4: Matrix4x4): Matrix3x3
Parameters
- matrix4x4: Matrix4x4
Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:525

getElement

getElement(row: number, column: number): number
获取指定行列元素值
Parameters
- row: number
- column: number
Returns number
- Defined in src/math/geom/Matrix3x3.ts:287

getTrace

getTrace(target?: Vector3): Vector3
获取矩阵对角元素
Parameters
- target: Vector3 = ...
Returns Vector3
- Defined in src/math/geom/Matrix3x3.ts:109

identity

identity(): Matrix3x3
设置矩阵为单位矩阵

Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:51

mmult

mmult(m: Matrix3x3, target?: Matrix3x3): Matrix3x3
矩阵乘法
Parameters
- m: Matrix3x3
  
  要从左边乘的矩阵。
- target: Matrix3x3 = ...
Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:156

reverse

reverse(): Matrix3x3
逆矩阵

Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:338

reverseTo

reverseTo(target?: Matrix3x3): Matrix3x3
逆矩阵
Parameters
- target: Matrix3x3 = ...
Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:464

scale

scale(v: Vector3, target?: Matrix3x3): Matrix3x3
缩放矩阵的每一列
Parameters
- v: Vector3
- target: Matrix3x3 = ...
Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:180

setElement

setElement(row: number, column: number, value: number): void
设置指定行列元素值
Parameters
- row: number
- column: number
- value: number
Returns void
- Defined in src/math/geom/Matrix3x3.ts:299

setRotationFromQuaternion

setRotationFromQuaternion(q: Quaternion): Matrix3x3
从四元数设置矩阵
Parameters
- q: Quaternion
Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:474

setTrace

setTrace(vec3: Vector3): Matrix3x3
根据一个 Vector3 设置矩阵对角元素
Parameters
- vec3: Vector3
Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:95

setZero

setZero(): Matrix3x3
将所有元素设置为0

Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:73

smult

smult(s: number): void
矩阵标量乘法
Parameters
- s: number
Returns void
- Defined in src/math/geom/Matrix3x3.ts:144

solve

solve(b: Vector3, target?: Vector3): Vector3
解决Ax = b
Parameters
- b: Vector3
  
  右手边
- target: Vector3 = ...
  
  结果
Returns Vector3
- Defined in src/math/geom/Matrix3x3.ts:201

toArray

toArray(array?: number[], offset?: number): number[]
转换为数组
Parameters
- array: number[] = []
  
  数组
- offset: number = 0
  
  偏移
Returns number[]
- Defined in src/math/geom/Matrix3x3.ts:583

toMatrix4x4

toMatrix4x4(outMatrix4x4: Matrix4x4): Matrix4x4
转换为4x4矩阵
Parameters
- outMatrix4x4: Matrix4x4
  
  4x4矩阵
Returns Matrix4x4
- Defined in src/math/geom/Matrix3x3.ts:550

toString

toString(): string
返回矩阵的字符串表示形式

Returns string
- Defined in src/math/geom/Matrix3x3.ts:322

transpose

transpose(): Matrix3x3
转置矩阵

Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:501

transposeTo

transposeTo(target?: Matrix3x3): Matrix3x3
转置矩阵
Parameters
- target: Matrix3x3 = ...
Returns Matrix3x3
- Defined in src/math/geom/Matrix3x3.ts:520

vmult

vmult(v: Vector3, target?: Vector3): Vector3
矩阵向量乘法
Parameters
- v: Vector3
  
  要乘以的向量
- target: Vector3 = ...
  
  目标保存结果
Returns Vector3
- Defined in src/math/geom/Matrix3x3.ts:126

Class Matrix3x3

Hierarchy

Index

Constructors

Properties

Methods

Constructors

constructor

Parameters

elements: NmberArray9 = ...

Returns Matrix3x3

Properties

elements

Methods

copy

Parameters

source: Matrix3x3

Returns Matrix3x3

formMatrix4x4

Parameters

matrix4x4: Matrix4x4

Returns Matrix3x3

getElement

Parameters

row: number

column: number

Returns number

getTrace

Parameters

target: Vector3 = ...

Returns Vector3

identity

Returns Matrix3x3

mmult

Parameters

m: Matrix3x3

target: Matrix3x3 = ...

Returns Matrix3x3

reverse

Returns Matrix3x3

reverseTo

Parameters

target: Matrix3x3 = ...

Returns Matrix3x3

scale

Parameters

v: Vector3

target: Matrix3x3 = ...

Returns Matrix3x3

setElement

Parameters

row: number

column: number

value: number

Returns void

setRotationFromQuaternion

Parameters

q: Quaternion

Returns Matrix3x3

setTrace

Parameters

vec3: Vector3

Returns Matrix3x3

setZero

Returns Matrix3x3

smult

Parameters

s: number

Returns void

solve

Parameters

b: Vector3

target: Vector3 = ...

Returns Vector3

toArray

Parameters

array: number[] = []

offset: number = 0

Returns number[]

toMatrix4x4