def write_constant(self, out_sac_path='./'): """ Write constant component to SAC file. :param out_sac_path: Output path, defaults to './' :type out_sac_path: str, optional """ sac = SACTrace(data=self.harmonic_trans[0, :]) sac.b = self.tmin sac.delta = self.rfsta.sampling sac.user0 = 0.0 sac.user1 = self.rfsta.f0[0] sac.stla = self.rfsta.stla sac.stlo = self.rfsta.stlo sac.stel = self.rfsta.stel sac.write( join(out_sac_path, '{}_constant_R.sac'.format(self.rfsta.staname)))