Source code for pyleecan.Methods.Machine.LamHoleNS.comp_periodicity_spatial

from numpy import gcd


def comp_periodicity_spatial(self):
    """Compute the periodicity factor of the lamination

    Parameters
    ----------
    self : LamHoleNS
        A LamHoleNS object

    Returns
    -------
    per_a : int
        Number of spatial periodicities of the lamination
    is_antiper_a : bool
        True if an spatial anti-periodicity is possible after the periodicities
    """

    p = self.get_pole_pair_number()

    nb_list = [p]
    # account for notches and bore
    if self.notch is not None:
        for notch in self.notch:
            nb_list.append(notch.comp_periodicity_spatial()[0])

    if self.bore:
        nb_list.append(self.bore.comp_periodicity_spatial()[0])
    if self.yoke:
        nb_list.append(self.yoke.comp_periodicity_spatial()[0])

    # compute the gcd of the list
    if len(nb_list) == 1:
        per_a = nb_list[0]
    else:
        per_a = gcd(nb_list[0], nb_list[1])
        for ii in range(2, len(nb_list)):
            per_a = gcd(per_a, nb_list[ii])
    is_antiper_a = False

    # Account for duct periodicity
    per_a, is_antiper_a = self.comp_periodicity_duct_spatial(per_a, is_antiper_a)
    per_a = int(per_a)

    return per_a, is_antiper_a