def METHOD_NAME(self, x, y, n_sersic, r_eff, center_x, center_y):
    """Coordinate transform to normalized radius :param x:
    :param y:
    :param center_x:
    :param center_y:
    :return:
    """
    x_ = x - center_x
    y_ = y - center_y
    r = np.sqrt(x_**2 + y_**2)
    if isinstance(r, int) or isinstance(r, float):
        r = max(self._s, r)
    else:
        r[r < self._s] = self._s
    x_reduced = (r / r_eff) ** (1.0 / n_sersic)
    return x_reduced