Class FixedMatrix2x2

constructor

• new FixedMatrix2x2(
      m00?: number | Fixed,
      m01?: number | Fixed,
      m10?: number | Fixed,
      m11?: number | Fixed,
  ): FixedMatrix2x2

  Create a new 2x2 fixed-point matrix 创建新的2x2定点矩阵

  Parameters

  • m00: number | Fixed = 1

    Element at row 0, column 0
  • m01: number | Fixed = 0

    Element at row 0, column 1
  • m10: number | Fixed = 0

    Element at row 1, column 0
  • m11: number | Fixed = 1

    Element at row 1, column 1

  Returns FixedMatrix2x2

m00

m01

m10

m11

Static ReadonlyIDENTITY

Static ReadonlyZERO

add

• add(other: FixedMatrix2x2): FixedMatrix2x2

  Add two matrices 两个矩阵相加

  Parameters

  • other: FixedMatrix2x2

  Returns FixedMatrix2x2

addInPlace

• addInPlace(other: FixedMatrix2x2): FixedMatrix2x2

  Add in place (modifies this instance for better performance) 就地相加（修改当前实例以提高性能）

  Parameters

  • other: FixedMatrix2x2

  Returns FixedMatrix2x2

clone

• clone(): FixedMatrix2x2

  Create a copy of this matrix 创建此矩阵的副本

  Returns FixedMatrix2x2

determinant

• determinant(): Fixed

  Calculate the determinant of this matrix 计算此矩阵的行列式

  Returns Fixed

equals

• equals(other: FixedMatrix2x2): boolean

  Check if this matrix equals another matrix 检查此矩阵是否等于另一个矩阵

  Parameters

  • other: FixedMatrix2x2

  Returns boolean

inverse

• inverse(): FixedMatrix2x2

  Calculate the inverse of this matrix 计算此矩阵的逆矩阵

  Returns FixedMatrix2x2

isIdentity

• isIdentity(): boolean

  Check if this matrix is the identity matrix 检查此矩阵是否为单位矩阵

  Returns boolean

multiply

• multiply(other: FixedMatrix2x2): FixedMatrix2x2

  Multiply two matrices 两个矩阵相乘

  Parameters

  • other: FixedMatrix2x2

  Returns FixedMatrix2x2

multiplyScalar

• multiplyScalar(scalar: Fixed): FixedMatrix2x2

  Multiply matrix by a scalar 矩阵乘以标量

  Parameters

  • scalar: Fixed

  Returns FixedMatrix2x2

multiplyScalarInPlace

• multiplyScalarInPlace(scalar: Fixed): FixedMatrix2x2

  Multiply matrix by a scalar in place 就地矩阵乘以标量

  Parameters

  • scalar: Fixed

  Returns FixedMatrix2x2

subtract

• subtract(other: FixedMatrix2x2): FixedMatrix2x2

  Subtract two matrices 两个矩阵相减

  Parameters

  • other: FixedMatrix2x2

  Returns FixedMatrix2x2

subtractInPlace

• subtractInPlace(other: FixedMatrix2x2): FixedMatrix2x2

  Subtract in place (modifies this instance for better performance) 就地相减（修改当前实例以提高性能）

  Parameters

  • other: FixedMatrix2x2

  Returns FixedMatrix2x2

toArray

• toArray(): number[]

  Convert to a regular number array [m00, m01, m10, m11] 转换为普通数字数组 [m00, m01, m10, m11]

  Returns number[]

toString

• toString(): string

  Convert to string representation 转换为字符串表示

  Returns string

trace

• trace(): Fixed

  Calculate the trace (sum of diagonal elements) of this matrix 计算此矩阵的迹（对角线元素之和）

  Returns Fixed

transformVector

• transformVector(vector: FixedVector2): FixedVector2

  Transform a vector by this matrix 使用此矩阵变换向量

  Parameters

  • vector: FixedVector2

  Returns FixedVector2

transpose

• transpose(): FixedMatrix2x2

  Transpose this matrix 转置此矩阵

  Returns FixedMatrix2x2

StaticfromArray

• fromArray(array: number[]): FixedMatrix2x2

  Create a matrix from an array [m00, m01, m10, m11] 从数组创建矩阵 [m00, m01, m10, m11]

  Parameters

  • array: number[]

  Returns FixedMatrix2x2

Staticidentity

• identity(): FixedMatrix2x2

  Create an identity matrix 创建单位矩阵

  Returns FixedMatrix2x2

Staticrotation

• rotation(angle: Fixed): FixedMatrix2x2

  Create a rotation matrix 创建旋转矩阵

  Parameters

  • angle: Fixed

    Rotation angle in radians

  Returns FixedMatrix2x2

Staticscaling

• scaling(scaleX: Fixed, scaleY?: Fixed): FixedMatrix2x2

  Create a scaling matrix 创建缩放矩阵

  Parameters

  • scaleX: Fixed

    Scale factor for X axis
  • OptionalscaleY: Fixed

    Scale factor for Y axis (defaults to scaleX for uniform scaling)

  Returns FixedMatrix2x2

Staticshear

• shear(shearX: Fixed, shearY: Fixed): FixedMatrix2x2

  Create a shear matrix 创建剪切矩阵

  Parameters

  • shearX: Fixed

    Shear factor for X axis
  • shearY: Fixed

    Shear factor for Y axis

  Returns FixedMatrix2x2

Staticzero

• zero(): FixedMatrix2x2

  Create a zero matrix 创建零矩阵

  Returns FixedMatrix2x2