static PyObject* astrology_swe_get_ayanamsa_ut(PyObject *self, PyObject *args)
{
double tjd_ut;
if (!PyArg_ParseTuple(args, "d", &tjd_ut))
return NULL;
double ret = swe_get_ayanamsa_ut(tjd_ut);
return Py_BuildValue("d", ret);
}
/*
* This function computes the ayanamsha, the distance of the tropical vernal point from the sidereal zero point of the zodiac.
* The ayanamsha is used to compute sidereal planetary positions from tropical ones:
* pos_sid = pos_trop – ayanamsha
* Before calling swe_get_ayanamsha(), you have to set the sidereal mode with swe_set_sid_mode, unless you want the default sidereal mode, which is the Fagan/Bradley ayanamsha.
* http://www.astro.com/swisseph/swephprg.htm#_Toc283735479
* double swe_get_ayanamsa_ut(double tjd_ut);
*/
static VALUE t_swe_get_ayanamsa_ut(VALUE self, VALUE julian_ut) {
double ayanamsa = swe_get_ayanamsa_ut(NUM2DBL(julian_ut));
return rb_float_new(ayanamsa);
}
