set( x, y, z, order = this._order ) {

		this._x = x;
		this._y = y;
		this._z = z;
		this._order = order;

		this._onChangeCallback();

		return this;

	}
Sets the Euler components.

@param {number} x - The angle of the x axis in radians.
@param {number} y - The angle of the y axis in radians.
@param {number} z - The angle of the z axis in radians.
@param {string} [order] - A string representing the order that the rotations are applied.
@return {Euler} A reference to this Euler instance.