los_integrator.py 文件源码

def __init__(self, stn_pos, **kwds):
        """
        Setup Chapman electron density profile F2 peak height derivative
        slant integrator.
        """
        z, Nm, Hm, H_O = SYM.symbols('z Nm Hm H_O')
        f_sym = chapman_sym_scaled(z, Nm, Hm, H_O)
        DHm_sym = SYM.diff(f_sym, Hm)
        f = SYM.lambdify((z, Nm, Hm, H_O),
                         DHm_sym,
                         modules='numexpr')
        wrapper = lambda pos, *args: f(pos.height / 1e3, *args)
        super(DHmChapmanSI, self).__init__(wrapper, stn_pos, **kwds)