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B.Math.Matrix3()

Represents a column-major 3x3 matrix.

make / set: representation: array accessor:
m00, m01, m02 axisX.x, axisY.x, axisZ.x m[0], m[3], m[6]
m10, m11, m12 = axisX.y, axisY.y, axisZ.y = m[1], m[4], m[7]
m20, m21, m22 axisX.z, axisY.z, axisZ.z m[2], m[5], m[8]

To create the object use B.Math.makeMatrix3().

Note: the order of transformations coincides with the order in which the matrices are multiplied (from left to right).

CONSTANTS:

{B.Math.Matrix3} ZERO = [0,0,0, 0,0,0, 0,0,0]

Zero matrix.

{B.Math.Matrix3} IDENTITY = [1,0,0, 0,1,0, 0,0,1]

Identity matrix.

PROPERTIES:

{Array.<number>} m

Matrix element array.

METHODS:

clone()

Clones this matrix to a new matrix.

RETURNS:

{B.Math.Matrix3}

this

copy(matrix)

Copies a given matrix into this matrix.

PARAMETERS:

{B.Math.Matrix3} matrix

RETURNS:

{B.Math.Matrix3}

this

set(m00, m01, m02, m10, m11, m12, m20, m21, m22)

Sets all elements of this matrix.

PARAMETERS:

{number} m00

{number} m01

{number} m02

{number} m10

{number} m11

{number} m12

{number} m20

{number} m21

{number} m22

RETURNS:

{B.Math.Matrix3}

this

get(row, column)

Gets an element by its row and column indices.

PARAMETERS:

{number} row

index [0, 2]

{number} column

index [0, 2]

RETURNS:

{number}

THROWS:

{Error}

if the index is out of range

setAxisX(axis)

Sets the X-axis vector.

PARAMETERS:

{B.Math.Vector3} axis

RETURNS:

{B.Math.Matrix3}

this

getAxisX(result)

Returns the X-axis vector.

PARAMETERS:

{B.Math.Vector3} [result]

omit if you want to return newly created vector

RETURNS:

{B.Math.Vector3}

setAxisY(axis)

Sets the Y-axis vector.

PARAMETERS:

{B.Math.Vector3} axis

RETURNS:

{B.Math.Matrix3}

this

getAxisY(result)

Returns the Y-axis vector.

PARAMETERS:

{B.Math.Vector3} [result]

omit if you want to return newly created vector

RETURNS:

{B.Math.Vector3}

setAxisZ(axis)

Sets the Z-axis vector.

PARAMETERS:

{B.Math.Vector3} axis

RETURNS:

{B.Math.Matrix3}

this

getAxisZ(result)

Returns the Z-axis vector.

PARAMETERS:

{B.Math.Vector3} [result]

omit if you want to return newly created vector

RETURNS:

{B.Math.Vector3}

extractScale(result)

Extracts scale factors.

PARAMETERS:

{B.Math.Vector3} [result]

omit if you want to return newly created vector

RETURNS:

{B.Math.Vector3}

fromArray(array, offset)

Sets this matrix elements from a part of array.

PARAMETERS:

{Array.<number>} array

{number} [offset] = 0

RETURNS:

{number}

new offset

toArray(array, offset)

Sets this matrix elements to a part of array.

PARAMETERS:

{Array.<number>} array

{number} [offset] = 0

RETURNS:

{number}

new offset

fromAngles(angles)

Sets this matrix from Euler angles.

PARAMETERS:

{B.Math.Angles} angles

RETURNS:

{B.Math.Matrix3}

this

fromQuaternion(q)

Sets this matrix from a quaternion.

PARAMETERS:

{B.Math.Quaternion} q

RETURNS:

{B.Math.Matrix3}

this

identity()

Sets this matrix to the identity.

RETURNS:

{B.Math.Matrix3}

this

rotationX(angle)

Sets this matrix to X-axis rotation transform.

PARAMETERS:

{number} angle

RETURNS:

{B.Math.Matrix3}

this

rotationY(angle)

Sets this matrix to Y-axis rotation transform.

PARAMETERS:

{number} angle

RETURNS:

{B.Math.Matrix3}

this

rotationZ(angle)

Sets this matrix to Z-axis rotation transform.

PARAMETERS:

{number} angle

RETURNS:

{B.Math.Matrix3}

this

rotationAxis(axis, angle)

Sets this matrix to arbitrary axis rotation transform.

PARAMETERS:

{B.Math.Vector3} axis

{number} angle

RETURNS:

{B.Math.Matrix3}

this

scale(x, y, z)

Sets this matrix to scale transform.

PARAMETERS:

{number} x

{number} y

{number} z

RETURNS:

{B.Math.Matrix3}

this

add(matrix)

Adds a matrix to this matrix.

PARAMETERS:

{B.Math.Matrix3} matrix

RETURNS:

{B.Math.Matrix3}

this

mulScalar(scalar)

Multiplies this matrix by a given scalar.

PARAMETERS:

{number} scalar

RETURNS:

{B.Math.Matrix3}

this

mulMatrices(a, b)

Multiplies two given matrices and sets the result to this.

PARAMETERS:

{B.Math.Matrix3} a

{B.Math.Matrix3} b

RETURNS:

{B.Math.Matrix3}

this

mul(value)

Multiplies this matrix by a given matrix or a scalar.

PARAMETERS:

{number | B.Math.Matrix3} value

RETURNS:

{B.Math.Matrix3}

this

determinant()

Calculates the determinant of this matrix.

RETURNS:

{number}

transpose()

Transposes this matrix.

RETURNS:

{B.Math.Matrix3}

this

invert()

Inverts this matrix.

RETURNS:

{B.Math.Matrix3}

this

THROWS:

{Error}

if determinant is zero.

equal(matrix)

Checks for strict equality of this matrix and another matrix.

PARAMETERS:

{B.Math.Matrix3} matrix

RETURNS:

{boolean}

CONSTANTS:

PROPERTIES:

METHODS: