pdf_maker_utils.py 文件源码

def _make_redshift_spline(z_min, z_max):
    """Utility function for creating a spline for comoving distance to
    redshift.
    """
    redshift_array = np.linspace(
        np.min((z_min - 1e-8, 0.0)), z_max + 1e-8, 1000)
    comov_array = core_utils.WMAP5.comoving_distance(redshift_array)
    comov_dist_to_redshift_spline = iu_spline(comov_array, redshift_array)
    return comov_dist_to_redshift_spline