Interface IMutableMatrix22

m00

m01

m10

m11

_swap

• _swap(l: number, r: number): void

  Swaps two elements in the internal array.

  Parameters

  • l: number

    Left index

  • r: number

    Right index

  Returns void

at

• at(row_i: number, column_i: number): number

  Gets the value at the specified row and column.

  Parameters

  • row_i: number

    Row index (0-based)

  • column_i: number

    Column index (0-based)

  Returns number

  Value at the specified position

clone

• clone(): IMutableMatrix22

  Creates a deep copy of this matrix.

  Returns IMutableMatrix22

  New mutable 2x2 matrix with the same values

copyComponents

• copyComponents(mat: IMatrix33 | IMatrix44 | IMatrix22): IMutableMatrix22

  Copies components from another matrix.

  Parameters

  • mat: IMatrix33 | IMatrix44 | IMatrix22

    Source matrix to copy from

  Returns IMutableMatrix22

  This matrix for method chaining

determinant

• determinant(): number

  Calculates the determinant of this 2x2 matrix.

  Returns number

  Determinant value

flattenAsArray

• flattenAsArray(): number[]

  Flattens the matrix into a plain JavaScript array.

  Returns number[]

  Array containing all matrix elements

getScale

• getScale(): IVector2

  Extracts the scale factors from this matrix.

  Returns IVector2

  2D vector containing scale factors

getScaleTo

• getScaleTo(outVec: IMutableVector2): IMutableVector2

  Extracts the scale factors from this matrix and stores them in an output vector.

  Parameters

  • outVec: IMutableVector2

    Output vector to store the scale factors

  Returns IMutableVector2

  The output vector for method chaining

identity

• identity(): IMutableMatrix22

  Sets this matrix to the identity matrix.

  Returns IMutableMatrix22

  This matrix for method chaining

invert

• invert(): IMutableMatrix22

  Inverts this matrix in place.

  Returns IMutableMatrix22

  This matrix for method chaining

isDummy

• isDummy(): boolean

  Checks if this is a dummy/placeholder matrix.

  Returns boolean

  True if this is a dummy matrix

isEqual

• isEqual(mat: IMatrix22, delta?: number): boolean

  Checks if this matrix is approximately equal to another matrix.

  Parameters

  • mat: IMatrix22

    Matrix to compare against

  • Optionaldelta: number

    Optional tolerance for comparison (default: small epsilon)

  Returns boolean

  True if matrices are approximately equal

isStrictEqual

• isStrictEqual(mat: IMatrix22): boolean

  Checks if this matrix is strictly equal to another matrix.

  Parameters

  • mat: IMatrix22

    Matrix to compare against

  Returns boolean

  True if matrices are exactly equal

multiply

• multiply(mat: IMatrix22): IMutableMatrix22

  Multiplies this matrix by another 2x2 matrix.

  Parameters

  • mat: IMatrix22

    Matrix to multiply by

  Returns IMutableMatrix22

  This matrix for method chaining

multiplyByLeft

• multiplyByLeft(mat: IMatrix22): IMutableMatrix22

  Multiplies this matrix by another 2x2 matrix from the left.

  Parameters

  • mat: IMatrix22

    Matrix to multiply from the left

  Returns IMutableMatrix22

  This matrix for method chaining

multiplyScale

• multiplyScale(vec: IVector2): IMutableMatrix22

  Multiplies this matrix by a scale vector.

  Parameters

  • vec: IVector2

    2D scale vector

  Returns IMutableMatrix22

  This matrix for method chaining

multiplyVector

• multiplyVector(vec: IVector2): IVector2

  Multiplies this matrix by a 2D vector.

  Parameters

  • vec: IVector2

    2D vector to multiply

  Returns IVector2

  Resulting 2D vector

multiplyVectorTo

• multiplyVectorTo(vec: IVector2, outVec: IMutableVector2): IMutableVector2

  Multiplies this matrix by a 2D vector and stores the result in an output vector.

  Parameters

  • vec: IVector2

    2D vector to multiply

  • outVec: IMutableVector2

    Output vector to store the result

  Returns IMutableVector2

  The output vector for method chaining

raw

• raw(): TypedArray

  Gets the raw typed array containing matrix data.

  Returns TypedArray

  Raw typed array

rotate

• rotate(radian: number): IMutableMatrix22

  Applies a 2D rotation to this matrix.

  Parameters

  • radian: number

    Rotation angle in radians

  Returns IMutableMatrix22

  This matrix for method chaining

scale

• scale(vec: IVector2): IMutableMatrix22

  Applies scaling to this matrix.

  Parameters

  • vec: IVector2

    2D scale vector

  Returns IMutableMatrix22

  This matrix for method chaining

setAt

• setAt(row_i: number, column_i: number, value: number): IMutableMatrix22

  Sets the value at the specified row and column.

  Parameters

  • row_i: number

    Row index (0-based)

  • column_i: number

    Column index (0-based)

  • value: number

    Value to set

  Returns IMutableMatrix22

  This matrix for method chaining

setComponents

• setComponents(
      m00: number,
      m01: number,
      m10: number,
      m11: number,
  ): IMutableMatrix22

  Sets all matrix components from individual values.

  Parameters

  • m00: number

    Element at row 0, column 0

  • m01: number

    Element at row 0, column 1

  • m10: number

    Element at row 1, column 0

  • m11: number

    Element at row 1, column 1

  Returns IMutableMatrix22

  This matrix for method chaining

toString

• toString(): string

  Converts the matrix to a string representation.

  Returns string

  String representation of the matrix

toStringApproximately

• toStringApproximately(): string

  Converts the matrix to an approximate string representation.

  Returns string

  Approximate string representation with rounded values

transpose

• transpose(): IMutableMatrix22

  Transposes this matrix in place.

  Returns IMutableMatrix22

  This matrix for method chaining

zero

• zero(): IMutableMatrix22

  Sets all matrix elements to zero.

  Returns IMutableMatrix22

  This matrix for method chaining