Class Matrix3

constructor

• new Matrix3(
      m00?: number,
      m10?: number,
      m20?: number,
      m01?: number,
      m11?: number,
      m21?: number,
      m02?: number,
      m12?: number,
      m22?: number,
  ): Matrix3

  Constructs a new Matrix3.

  Parameters

  • m00: number = 1

    Position 0,0 of this matrix.
  • m10: number = 0

    Position 1,0 of this matrix.
  • m20: number = 0

    Position 2,0 of this matrix.
  • m01: number = 0

    Position 0,1 of this matrix.
  • m11: number = 1

    Position 1,1 of this matrix.
  • m21: number = 0

    Position 2,1 of this matrix.
  • m02: number = 0

    Position 0,2 of this matrix.
  • m12: number = 0

    Position 1,2 of this matrix.
  • m22: number = 1

    Position 2,2 of this matrix.

  Returns Matrix3

m

m00

• get m00(): number

  Get position 0,0 of this matrix.

  Returns number

  The position 0,0 of this matrix.
• set m00(value: number): void

  Set position 0,0 of this matrix.

  Parameters

  • value: number

  Returns void

m01

• get m01(): number

  Get position 0,1 of this matrix.

  Returns number

  The position 0,1 of this matrix.
• set m01(value: number): void

  Set position 0,1 of this matrix.

  Parameters

  • value: number

  Returns void

m02

• get m02(): number

  Get position 0,2 of this matrix.

  Returns number

  The position 0,2 of this matrix.
• set m02(value: number): void

  Set position 0,2 of this matrix.

  Parameters

  • value: number

  Returns void

m10

• get m10(): number

  Get position 1,0 of this matrix.

  Returns number

  The position 1,0 of this matrix.
• set m10(value: number): void

  Set position 1,0 of this matrix.

  Parameters

  • value: number

  Returns void

m11

• get m11(): number

  Get position 1,1 of this matrix.

  Returns number

  The position 1,1 of this matrix.
• set m11(value: number): void

  Set position 1,1 of this matrix.

  Parameters

  • value: number

  Returns void

m12

• get m12(): number

  Get position 1,2 of this matrix.

  Returns number

  The position 1,2 of this matrix.
• set m12(value: number): void

  Set position 1,2 of this matrix.

  Parameters

  • value: number

  Returns void

m20

• get m20(): number

  Get position 2,0 of this matrix.

  Returns number

  The position 2,0 of this matrix.
• set m20(value: number): void

  Set position 2,0 of this matrix.

  Parameters

  • value: number

  Returns void

m21

• get m21(): number

  Get position 2,1 of this matrix.

  Returns number

  The position 2,1 of this matrix.
• set m21(value: number): void

  Set position 2,1 of this matrix.

  Parameters

  • value: number

  Returns void

m22

• get m22(): number

  Get position 2,2 of this matrix.

  Returns number

  The position 2,2 of this matrix.
• set m22(value: number): void

  Set position 2,2 of this matrix.

  Parameters

  • value: number

  Returns void

asArray

• asArray(): [
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
      number,
  ]

  Return the components of this matrix as an array.

  Returns [number, number, number, number, number, number, number, number, number]

  The components of this matrix as an array.

invert

• invert(): this

  Inverts the matrix.

  Returns this

  This instance.

lookAt

• lookAt(direction: Readonly<Vector3>, upVector?: Readonly<Vector3>): this

  Sets this matrix up as a transformation matrix to look in a given direction.

  Parameters

  • direction: Readonly<Vector3>

    The direction to look in.
  • OptionalupVector: Readonly<Vector3>

    The vector indicating the up direction. If not provided a best effort is made to find a good one.

  Returns this

  This instance.

multiplyInverseL

• multiplyInverseL(matrix: Readonly<Matrix3>): this

  Inversely multiply with another matrix from the right.

  Parameters

  • matrix: Readonly<Matrix3>

    The matrix to multiply with.

  Returns this

  This instance.

multiplyInverseR

• multiplyInverseR(matrix: Readonly<Matrix3>): this

  Inversely multiply with another matrix from the right.

  Parameters

  • matrix: Readonly<Matrix3>

    The matrix to multiply with.

  Returns this

  This instance.

multiplyL

• multiplyL(matrix: Readonly<Matrix3>): this

  Multiply with another matrix from the left.

  Parameters

  • matrix: Readonly<Matrix3>

    The matrix to multiply with.

  Returns this

  This instance.

multiplyR

• multiplyR(matrix: Readonly<Matrix3>): this

  Multiply with another matrix from the right.

  Parameters

  • matrix: Readonly<Matrix3>

    The matrix to multiply with.

  Returns this

  This instance.

normalize

• normalize(): this

  Normalizes the matrix.

  Returns this

  This instance.

set

• set(matrix: Readonly<Matrix3>): this

  Sets the matrix to new values from another matrix.

  Parameters

  • matrix: Readonly<Matrix3>

    The matrix to copy.

  Returns this

  This instance.

setEuler

• setEuler(degrees: Readonly<Euler>): this

  Sets the matrix to a rotation in Euler angles.

  Parameters

  • degrees: Readonly<Euler>

    The rotation in Euler angles.

  Returns this

  This instance.

setM

• setM(
      m00: number,
      m10: number,
      m20: number,
      m01: number,
      m11: number,
      m21: number,
      m02: number,
      m12: number,
      m22: number,
  ): this

  Update the matrix by individual components.

  Parameters

  • m00: number

    Position 0,0 of this matrix.
  • m10: number

    Position 1,0 of this matrix.
  • m20: number

    Position 2,0 of this matrix.
  • m01: number

    Position 0,1 of this matrix.
  • m11: number

    Position 1,1 of this matrix.
  • m21: number

    Position 2,1 of this matrix.
  • m02: number

    Position 0,2 of this matrix.
  • m12: number

    Position 1,2 of this matrix.
  • m22: number

    Position 2,2 of this matrix.

  Returns this

  This instance.

setQuaternion

• setQuaternion(quaternion: Readonly<Quaternion>): this

  Sets the matrix to a rotation described by a quaternion.

  Parameters

  • quaternion: Readonly<Quaternion>

    The quaternion describing the rotation.

  Returns this

  This instance.

setVector3

• setVector3(axis: Readonly<Vector3>, degrees: number): this

  Sets the matrix to a rotation around an axis.

  Parameters

  • axis: Readonly<Vector3>

    The axis around which to rotate.
  • degrees: number

    The rotation in degrees.

  Returns this

  This instance.

StaticfromEuler

• fromEuler(degrees: Readonly<Euler>): Matrix3

  Creates a new Matrix3 from a rotation in Euler angles.

  Parameters

  • degrees: Readonly<Euler>

    The rotation in Euler angles.

  Returns Matrix3

  A new matrix.

StaticfromMatrix3

• fromMatrix3(matrix: Readonly<Matrix3>): Matrix3

  Creates a new Matrix3 from another Matrix3.

  Parameters

  • matrix: Readonly<Matrix3>

    The matrix to copy.

  Returns Matrix3

  A new matrix.

StaticfromQuaternion

• fromQuaternion(quaternion: Readonly<Quaternion>): Matrix3

  Creates a new Matrix3 from a quaternion.

  Parameters

  • quaternion: Readonly<Quaternion>

    The quaternion describes the rotation.

  Returns Matrix3

  A new matrix.

StaticfromVector3

• fromVector3(axis: Readonly<Vector3>, degrees: number): Matrix3

  Creates a new Matrix3 from a rotation around an axis.

  Parameters

  • axis: Readonly<Vector3>

    The axis around which to rotate.
  • degrees: number

    The rotation in degrees.

  Returns Matrix3

  A new matrix.