Class Euler

constructor

• new Euler(x?: number, y?: number, z?: number, order?: EulerOrder): Euler

  Creates a new Euler instance with the specified rotation angles and order.

  Parameters

  • x: number = 0

    Rotation angle around x-axis in radians. Default is 0.

  • y: number = 0

    Rotation angle around y-axis in radians. Default is 0.

  • z: number = 0

    Rotation angle around z-axis in radians. Default is 0.

  • order: EulerOrder = EulerOrder.XYZ

    The order in which rotations are applied. Default is EulerOrder.XYZ.

  Returns Euler

order

x

y

z

clone

• clone(): Euler

  Creates a new Euler instance with the same rotation angles and order as this one.

  Returns Euler

  A new Euler instance with copied values.

copy

• copy(source: Euler): this

  Copies rotation angles and order from another Euler instance.

  Parameters

  • source: Euler

    The Euler instance to copy from.

  Returns this

  This Euler instance for method chaining.

equal

• equal(euler: Euler): boolean

  Determines if this Euler angle set is equal to another.

  Parameters

  • euler: Euler

    The Euler angle set to compare with.

  Returns boolean

  True if all angles and the rotation order are equal, false otherwise.

set

• set(x: number, y: number, z: number, order?: EulerOrder): this

  Sets the rotation angles and order for this Euler instance.

  Parameters

  • x: number

    New rotation angle around x-axis in radians.

  • y: number

    New rotation angle around y-axis in radians.

  • z: number

    New rotation angle around z-axis in radians.

  • order: EulerOrder = ...

    New rotation order. If not provided, the current order is preserved.

  Returns this

  This Euler instance for method chaining.

setFromRotationMatrix

• setFromRotationMatrix(m: IMatrix4): this

  Sets the Euler angles based on a rotation matrix. Assumes the upper 3x3 of the matrix is a pure rotation matrix (unscaled).

  Parameters

  • m: IMatrix4

    The rotation matrix to decompose into Euler angles. assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled).

  Returns this

  This Euler instance for method chaining.

  Remarks

  The decomposition handles the gimbal lock case by setting the third angle to 0 when the middle rotation approaches ±90 degrees.

toArray

• toArray(): [number, number, number]

  Returns the Euler angles as a three-element array [x, y, z].

  Returns [number, number, number]

  An array containing the rotation angles in radians.