Interface IMatrix22

Interface for immutable 2x2 matrices. Provides specific operations for 2D transformations.

interface IMatrix22 {
    _v: Float32Array;
    className: string;
    isIdentityMatrixClass: boolean;
    m00: number;
    m01: number;
    m10: number;
    m11: number;
    at(row_i: number, column_i: number): number;
    clone(): IMatrix22;
    determinant(): number;
    flattenAsArray(): number[];
    getScale(): IVector2;
    getScaleTo(outVec: IMutableVector2): IMutableVector2;
    isDummy(): boolean;
    isEqual(mat: IMatrix22, delta?: number): boolean;
    isStrictEqual(mat: IMatrix22): boolean;
    isTheSourceSame(arrayBuffer: ArrayBuffer): boolean;
    multiplyVector(vec: IVector2): IVector2;
    multiplyVectorTo(vec: IVector2, outVec: IMutableVector2): IMutableVector2;
    toString(): string;
    toStringApproximately(): string;
    v(i: number): number;
}

Hierarchy (view full)

IMatrix
- IMatrix22

Implemented by

Matrix22

Properties

_v

_v: Float32Array

Internal typed array storing matrix data in column-major order

`Readonly`className

className: string

Returns the class name of the matrix implementation

`Readonly`isIdentityMatrixClass

isIdentityMatrixClass: boolean

Indicates if this matrix is an identity matrix class

`Readonly`m00

m00: number

Element at row 0, column 0

`Readonly`m01

m01: number

Element at row 0, column 1

`Readonly`m10

m10: number

Element at row 1, column 0

`Readonly`m11

m11: number

Element at row 1, column 1

Methods

at

at(row_i, column_i): 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
Inherited from IMatrix.at
- Defined in foundation/math/IMatrix.ts:54

clone

clone(): IMatrix22
Creates a deep copy of this matrix.

Returns IMatrix22
New immutable 2x2 matrix with the same values
- Defined in foundation/math/IMatrix.ts:253

determinant

determinant(): number
Calculates the determinant of this 2x2 matrix.

Returns number
Determinant value
Overrides IMatrix.determinant
- Defined in foundation/math/IMatrix.ts:219

flattenAsArray

flattenAsArray(): number[]
Flattens the matrix into a plain JavaScript array.

Returns number[]
Array containing all matrix elements
Inherited from IMatrix.flattenAsArray
- Defined in foundation/math/IMatrix.ts:40

getScale

getScale(): IVector2
Extracts the scale factors from this matrix.

Returns IVector2
2D vector containing scale factors
- Defined in foundation/math/IMatrix.ts:240

getScaleTo

getScaleTo(outVec): 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
- Defined in foundation/math/IMatrix.ts:247

isDummy

isDummy(): boolean
Checks if this is a dummy/placeholder matrix.

Returns boolean
True if this is a dummy matrix
Inherited from IMatrix.isDummy
- Defined in foundation/math/IMatrix.ts:46

isEqual

isEqual(mat, delta?): 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
- Defined in foundation/math/IMatrix.ts:206

isStrictEqual

isStrictEqual(mat): 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
- Defined in foundation/math/IMatrix.ts:213

isTheSourceSame

isTheSourceSame(arrayBuffer): boolean
Checks if the internal array buffer is the same as the provided one.
Parameters
- arrayBuffer: ArrayBuffer
  Array buffer to compare against
Returns boolean
True if the source is the same
Inherited from IMatrix.isTheSourceSame
- Defined in foundation/math/IMatrix.ts:77

multiplyVector

multiplyVector(vec): IVector2
Multiplies this matrix by a 2D vector.
Parameters
- vec: IVector2
  2D vector to multiply
Returns IVector2
Resulting 2D vector
- Defined in foundation/math/IMatrix.ts:226

multiplyVectorTo

multiplyVectorTo(vec, outVec): 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
- Defined in foundation/math/IMatrix.ts:234

toString

toString(): string
Converts the matrix to a string representation.

Returns string
String representation of the matrix
Inherited from IMatrix.toString
- Defined in foundation/math/IMatrix.ts:28

toStringApproximately

toStringApproximately(): string
Converts the matrix to an approximate string representation.

Returns string
Approximate string representation with rounded values
Inherited from IMatrix.toStringApproximately
- Defined in foundation/math/IMatrix.ts:34

v

v(i): number
Gets the value at the specified linear index.
Parameters
- i: number
  Linear index in the internal array
Returns number
Value at the specified index
Inherited from IMatrix.v
- Defined in foundation/math/IMatrix.ts:61

Interface IMatrix22

Hierarchy (view full)

Implemented by

Index

Properties

Methods

Properties

_v

ReadonlyclassName

ReadonlyisIdentityMatrixClass

Readonlym00

Readonlym01

Readonlym10

Readonlym11

Methods

at

Parameters

Returns number

clone

Returns IMatrix22

determinant

Returns number

flattenAsArray

Returns number[]

getScale

Returns IVector2

getScaleTo

Parameters

Returns IMutableVector2

isDummy

Returns boolean

isEqual

Parameters

Returns boolean

isStrictEqual

Parameters

Returns boolean

isTheSourceSame

Parameters

Returns boolean

multiplyVector

Parameters

Returns IVector2

multiplyVectorTo

Parameters

Returns IMutableVector2

toString

Returns string

toStringApproximately

Returns string

v

Parameters

Returns number

Settings

On This Page

`Readonly`className

`Readonly`isIdentityMatrixClass

`Readonly`m00

`Readonly`m01

`Readonly`m10

`Readonly`m11