Module: Swisseph

Defined in:
lib/swisseph.rb,
lib/swisseph.rb,
ext/swisseph/swisseph.c

Constant Summary collapse

LOCK =

The Swiss Ephemeris C library keeps its mutable state in one struct swe_data swed. On a build where swed is a plain process global it is NOT thread-safe: two threads inside the C library at once can segfault the process, so every native call is serialized through this global re-entrant lock.

BUT libswe declares swed with the TLS macro (sweodef.h). On any build where TLS resolves to real thread-local storage (__thread / _Thread_local / __declspec(thread)) each thread gets its own swed -- own file descriptors, own caches -- and the library is genuinely per-thread reentrant. That is the case on Linux, and on macOS with the extconf.rb patch that drops the legacy __APPLE__ exclusion (modern clang supports __thread). On such a build the lock is pure overhead: it serializes ephemeris work that could run in parallel.

Monitor.new
LOCKING =

Serialize native calls through LOCK unless explicitly disabled. Set SWISSEPH_NOLOCK=1 ONLY on a thread-local (TLS) build -- disabling the lock on a non-TLS build will segfault under concurrency. Reentrancy verified 2026-08-19 under ThreadSanitizer (12 threads, no lock, zero data races, exact values).

ENV['SWISSEPH_NOLOCK'] != '1'
SE_SUN =

Constants

INT2FIX(SE_SUN)
SE_MOON = 
INT2FIX(SE_MOON)
SE_MERCURY = 
INT2FIX(SE_MERCURY)
SE_VENUS = 
INT2FIX(SE_VENUS)
SE_MARS = 
INT2FIX(SE_MARS)
SE_JUPITER = 
INT2FIX(SE_JUPITER)
SE_SATURN = 
INT2FIX(SE_SATURN)
SE_URANUS = 
INT2FIX(SE_URANUS)
SE_NEPTUNE = 
INT2FIX(SE_NEPTUNE)
SE_PLUTO = 
INT2FIX(SE_PLUTO)
SE_MEAN_NODE = 
INT2FIX(SE_MEAN_NODE)
SE_TRUE_NODE = 
INT2FIX(SE_TRUE_NODE)
SE_MEAN_APOG = 
INT2FIX(SE_MEAN_APOG)
SE_OSCU_APOG = 
INT2FIX(SE_OSCU_APOG)
SE_EARTH = 
INT2FIX(SE_EARTH)
SE_CHIRON = 
INT2FIX(SE_CHIRON)
SE_PHOLUS = 
INT2FIX(SE_PHOLUS)
SE_CERES = 
INT2FIX(SE_CERES)
SE_PALLAS = 
INT2FIX(SE_PALLAS)
SE_JUNO = 
INT2FIX(SE_JUNO)
SE_VESTA = 
INT2FIX(SE_VESTA)
SE_CUPIDO = 
INT2FIX(SE_CUPIDO)
SE_HADES = 
INT2FIX(SE_HADES)
SE_ZEUS = 
INT2FIX(SE_ZEUS)
SE_KRONOS = 
INT2FIX(SE_KRONOS)
SE_APOLLON = 
INT2FIX(SE_APOLLON)
SE_ADMETOS = 
INT2FIX(SE_ADMETOS)
SE_VULKANUS = 
INT2FIX(SE_VULKANUS)
SE_POSEIDON = 
INT2FIX(SE_POSEIDON)
SE_INTP_APOG = 
INT2FIX(SE_INTP_APOG)
SE_INTP_PERG = 
INT2FIX(SE_INTP_PERG)
SEFLG_JPLEPH = 
INT2FIX(SEFLG_JPLEPH)
SEFLG_SWIEPH = 
INT2FIX(SEFLG_SWIEPH)
SEFLG_MOSEPH = 
INT2FIX(SEFLG_MOSEPH)
SEFLG_HELCTR = 
INT2FIX(SEFLG_HELCTR)
SEFLG_TRUEPOS = 
INT2FIX(SEFLG_TRUEPOS)
SEFLG_J2000 = 
INT2FIX(SEFLG_J2000)
SEFLG_NONUT = 
INT2FIX(SEFLG_NONUT)
SEFLG_SPEED3 = 
INT2FIX(SEFLG_SPEED3)
SEFLG_SPEED = 
INT2FIX(SEFLG_SPEED)
SEFLG_NOGDEFL = 
INT2FIX(SEFLG_NOGDEFL)
SEFLG_NOABERR = 
INT2FIX(SEFLG_NOABERR)
SEFLG_EQUATORIAL = 
INT2FIX(SEFLG_EQUATORIAL)
SEFLG_XYZ = 
INT2FIX(SEFLG_XYZ)
SEFLG_RADIANS = 
INT2FIX(SEFLG_RADIANS)
SEFLG_BARYCTR = 
INT2FIX(SEFLG_BARYCTR)
SEFLG_TOPOCTR = 
INT2FIX(SEFLG_TOPOCTR)
SEFLG_SIDEREAL = 
INT2FIX(SEFLG_SIDEREAL)
SEFLG_ICRS = 
INT2FIX(SEFLG_ICRS)
SE_SIDM_FAGAN_BRADLEY =

0

INT2FIX(SE_SIDM_FAGAN_BRADLEY)
SE_SIDM_LAHIRI =

0

INT2FIX(SE_SIDM_LAHIRI)
SE_SIDM_DELUCE = 
INT2FIX(SE_SIDM_DELUCE)
SE_SIDM_RAMAN = 
INT2FIX(SE_SIDM_RAMAN)
SE_SIDM_USHASHASHI = 
INT2FIX(SE_SIDM_USHASHASHI)
SE_SIDM_KRISHNAMURTI = 
INT2FIX(SE_SIDM_KRISHNAMURTI)
SE_SIDM_DJWHAL_KHUL = 
INT2FIX(SE_SIDM_DJWHAL_KHUL)
SE_SIDM_YUKTESHWAR = 
INT2FIX(SE_SIDM_YUKTESHWAR)
SE_SIDM_JN_BHASIN = 
INT2FIX(SE_SIDM_JN_BHASIN)
SE_SIDM_BABYL_KUGLER1 = 
INT2FIX(SE_SIDM_BABYL_KUGLER1)
SE_SIDM_BABYL_KUGLER2 = 
INT2FIX(SE_SIDM_BABYL_KUGLER2)
SE_SIDM_BABYL_KUGLER3 = 
INT2FIX(SE_SIDM_BABYL_KUGLER3)
SE_SIDM_BABYL_HUBER = 
INT2FIX(SE_SIDM_BABYL_HUBER)
SE_SIDM_BABYL_ETPSC = 
INT2FIX(SE_SIDM_BABYL_ETPSC)
SE_SIDM_ALDEBARAN_15TAU = 
INT2FIX(SE_SIDM_ALDEBARAN_15TAU)
SE_SIDM_HIPPARCHOS = 
INT2FIX(SE_SIDM_HIPPARCHOS)
SE_SIDM_SASSANIAN = 
INT2FIX(SE_SIDM_SASSANIAN)
SE_SIDM_GALCENT_0SAG = 
INT2FIX(SE_SIDM_GALCENT_0SAG)
SE_SIDM_J2000 = 
INT2FIX(SE_SIDM_J2000)
SE_SIDM_J1900 = 
INT2FIX(SE_SIDM_J1900)
SE_SIDM_B1950 = 
INT2FIX(SE_SIDM_B1950)
SE_SIDM_SURYASIDDHANTA = 
INT2FIX(SE_SIDM_SURYASIDDHANTA)
SE_SIDM_SURYASIDDHANTA_MSUN = 
INT2FIX(SE_SIDM_SURYASIDDHANTA_MSUN)
SE_SIDM_ARYABHATA = 
INT2FIX(SE_SIDM_ARYABHATA)
SE_SIDM_ARYABHATA_MSUN = 
INT2FIX(SE_SIDM_ARYABHATA_MSUN)
SE_SIDM_SS_REVATI = 
INT2FIX(SE_SIDM_SS_REVATI)
SE_SIDM_SS_CITRA = 
INT2FIX(SE_SIDM_SS_CITRA)
SE_SIDM_TRUE_CITRA = 
INT2FIX(SE_SIDM_TRUE_CITRA)
SE_SIDM_TRUE_REVATI = 
INT2FIX(SE_SIDM_TRUE_REVATI)
SE_SIDM_TRUE_PUSHYA = 
INT2FIX(SE_SIDM_TRUE_PUSHYA)
SE_SIDM_GALCENT_RGILBRAND = 
INT2FIX(SE_SIDM_GALCENT_RGILBRAND)
SE_SIDM_GALEQU_IAU1958 = 
INT2FIX(SE_SIDM_GALEQU_IAU1958)
SE_SIDM_GALEQU_TRUE = 
INT2FIX(SE_SIDM_GALEQU_TRUE)
SE_SIDM_GALEQU_MULA = 
INT2FIX(SE_SIDM_GALEQU_MULA)
SE_SIDM_GALALIGN_MARDYKS = 
INT2FIX(SE_SIDM_GALALIGN_MARDYKS)
SE_SIDM_TRUE_MULA = 
INT2FIX(SE_SIDM_TRUE_MULA)
SE_SIDM_GALCENT_MULA_WILHELM = 
INT2FIX(SE_SIDM_GALCENT_MULA_WILHELM)
SE_SIDM_ARYABHATA_522 = 
INT2FIX(SE_SIDM_ARYABHATA_522)
SE_SIDM_BABYL_BRITTON = 
INT2FIX(SE_SIDM_BABYL_BRITTON)
SE_SIDM_TRUE_SHEORAN = 
INT2FIX(SE_SIDM_TRUE_SHEORAN)
SE_SIDM_GALCENT_COCHRANE = 
INT2FIX(SE_SIDM_GALCENT_COCHRANE)
SE_SIDM_GALEQU_FIORENZA = 
INT2FIX(SE_SIDM_GALEQU_FIORENZA)
SE_SIDM_VALENS_MOON = 
INT2FIX(SE_SIDM_VALENS_MOON)
SE_SIDM_LAHIRI_1940 = 
INT2FIX(SE_SIDM_LAHIRI_1940)
SE_SIDM_LAHIRI_VP285 = 
INT2FIX(SE_SIDM_LAHIRI_VP285)
SE_SIDM_KRISHNAMURTI_VP291 = 
INT2FIX(SE_SIDM_KRISHNAMURTI_VP291)
SE_SIDM_LAHIRI_ICRC =

46

INT2FIX(SE_SIDM_LAHIRI_ICRC)
SE_SIDM_USER =

255

INT2FIX(SE_SIDM_USER)
SE_GREG_CAL =

255

INT2FIX(SE_GREG_CAL)
SE_JUL_CAL = 
INT2FIX(SE_JUL_CAL)
SE_ECL2HOR = 
INT2FIX(SE_ECL2HOR)
SE_EQU2HOR = 
INT2FIX(SE_EQU2HOR)
SE_NODBIT_MEAN = 
INT2FIX(SE_NODBIT_MEAN)
SE_NODBIT_OSCU = 
INT2FIX(SE_NODBIT_OSCU)
SE_NODBIT_OSCU_BAR = 
INT2FIX(SE_NODBIT_OSCU_BAR)
SE_NODBIT_FOPOINT = 
INT2FIX(SE_NODBIT_FOPOINT)
SE_CALC_RISE = 
INT2FIX(SE_CALC_RISE)
SE_CALC_SET = 
INT2FIX(SE_CALC_SET)
SE_CALC_MTRANSIT = 
INT2FIX(SE_CALC_MTRANSIT)
SE_CALC_ITRANSIT = 
INT2FIX(SE_CALC_ITRANSIT)
SE_BIT_DISC_CENTER = 
INT2FIX(SE_BIT_DISC_CENTER)
SE_BIT_DISC_BOTTOM = 
INT2FIX(SE_BIT_DISC_BOTTOM)
SE_BIT_GEOCTR_NO_ECL_LAT = 
INT2FIX(SE_BIT_GEOCTR_NO_ECL_LAT)
SE_BIT_NO_REFRACTION = 
INT2FIX(SE_BIT_NO_REFRACTION)
SE_BIT_CIVIL_TWILIGHT = 
INT2FIX(SE_BIT_CIVIL_TWILIGHT)
SE_BIT_NAUTIC_TWILIGHT = 
INT2FIX(SE_BIT_NAUTIC_TWILIGHT)
SE_BIT_ASTRO_TWILIGHT = 
INT2FIX(SE_BIT_ASTRO_TWILIGHT)
SE_BIT_FIXED_DISC_SIZE = 
INT2FIX(SE_BIT_FIXED_DISC_SIZE)
SE_BIT_HINDU_RISING = 
INT2FIX(SE_BIT_HINDU_RISING)
SE_HOR2ECL =

for swe_azalt_rev()

INT2FIX(SE_HOR2ECL)
SE_HOR2EQU = 
INT2FIX(SE_HOR2EQU)
SE_TRUE_TO_APP =

for swe_refrac()

INT2FIX(SE_TRUE_TO_APP)
SE_APP_TO_TRUE = 
INT2FIX(SE_APP_TO_TRUE)
SE_SPLIT_DEG_ROUND_SEC =

for swe_split_deg()

INT2FIX(SE_SPLIT_DEG_ROUND_SEC)
SE_SPLIT_DEG_ROUND_MIN = 
INT2FIX(SE_SPLIT_DEG_ROUND_MIN)
SE_SPLIT_DEG_ROUND_DEG = 
INT2FIX(SE_SPLIT_DEG_ROUND_DEG)
SE_SPLIT_DEG_ZODIACAL = 
INT2FIX(SE_SPLIT_DEG_ZODIACAL)
SE_SPLIT_DEG_NAKSHATRA = 
INT2FIX(SE_SPLIT_DEG_NAKSHATRA)
SE_SPLIT_DEG_KEEP_SIGN = 
INT2FIX(SE_SPLIT_DEG_KEEP_SIGN)
SE_SPLIT_DEG_KEEP_DEG = 
INT2FIX(SE_SPLIT_DEG_KEEP_DEG)
SE_ECL_CENTRAL =

for eclipse functions

INT2FIX(SE_ECL_CENTRAL)
SE_ECL_NONCENTRAL = 
INT2FIX(SE_ECL_NONCENTRAL)
SE_ECL_TOTAL = 
INT2FIX(SE_ECL_TOTAL)
SE_ECL_ANNULAR = 
INT2FIX(SE_ECL_ANNULAR)
SE_ECL_PARTIAL = 
INT2FIX(SE_ECL_PARTIAL)
SE_ECL_ANNULAR_TOTAL = 
INT2FIX(SE_ECL_ANNULAR_TOTAL)
SE_ECL_HYBRID = 
INT2FIX(SE_ECL_HYBRID)
SE_ECL_PENUMBRAL = 
INT2FIX(SE_ECL_PENUMBRAL)
SE_ECL_ALLTYPES_SOLAR = 
INT2FIX(SE_ECL_ALLTYPES_SOLAR)
SE_ECL_ALLTYPES_LUNAR = 
INT2FIX(SE_ECL_ALLTYPES_LUNAR)
SE_ECL_VISIBLE = 
INT2FIX(SE_ECL_VISIBLE)
SE_ECL_MAX_VISIBLE = 
INT2FIX(SE_ECL_MAX_VISIBLE)
SE_ECL_1ST_VISIBLE = 
INT2FIX(SE_ECL_1ST_VISIBLE)
SE_ECL_2ND_VISIBLE = 
INT2FIX(SE_ECL_2ND_VISIBLE)
SE_ECL_3RD_VISIBLE = 
INT2FIX(SE_ECL_3RD_VISIBLE)
SE_ECL_4TH_VISIBLE = 
INT2FIX(SE_ECL_4TH_VISIBLE)
SE_ECL_ONE_TRY = 
INT2FIX(SE_ECL_ONE_TRY)
SE_HELIACAL_RISING =

for heliacal functions

INT2FIX(SE_HELIACAL_RISING)
SE_HELIACAL_SETTING = 
INT2FIX(SE_HELIACAL_SETTING)
SE_MORNING_FIRST = 
INT2FIX(SE_MORNING_FIRST)
SE_EVENING_LAST = 
INT2FIX(SE_EVENING_LAST)
SE_EVENING_FIRST = 
INT2FIX(SE_EVENING_FIRST)
SE_MORNING_LAST = 
INT2FIX(SE_MORNING_LAST)
SE_HELFLAG_LONG_SEARCH = 
INT2FIX(SE_HELFLAG_LONG_SEARCH)
SE_HELFLAG_HIGH_PRECISION = 
INT2FIX(SE_HELFLAG_HIGH_PRECISION)
SE_HELFLAG_OPTICAL_PARAMS = 
INT2FIX(SE_HELFLAG_OPTICAL_PARAMS)
SE_HELFLAG_NO_DETAILS = 
INT2FIX(SE_HELFLAG_NO_DETAILS)

Class Method Summary collapse

Class Method Details

.swe_azalt(julian_day, flag, lon, lat, height, pressure, temp, in0, in1, in2) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 688

static VALUE t_swe_azalt(VALUE self, VALUE julian_day, VALUE flag, VALUE lon, VALUE lat, VALUE height, VALUE pressure, VALUE temp, VALUE in0, VALUE in1, VALUE in2)
{
	double geopos[3];
	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);

	double xin[3];
	xin[0] = NUM2DBL(in0);
	xin[1] = NUM2DBL(in1);
	xin[2] = NUM2DBL(in2);
	double xaz[3];

	swe_azalt(NUM2DBL(julian_day), NUM2INT(flag), geopos, NUM2DBL(pressure), NUM2DBL(temp), xin, xaz);

	VALUE output = rb_ary_new();
	rb_ary_push(output, rb_float_new(xaz[0]));
	rb_ary_push(output, rb_float_new(xaz[1]));
	rb_ary_push(output, rb_float_new(xaz[2]));
	return output;
}

.swe_azalt_rev(julian_day, flag, lon, lat, height, azimuth, altitude) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 717

static VALUE t_swe_azalt_rev(VALUE self, VALUE julian_day, VALUE flag, VALUE lon, VALUE lat, VALUE height, VALUE azimuth, VALUE altitude)
{
	double geopos[3];
	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);

	double xin[2];
	xin[0] = NUM2DBL(azimuth);
	xin[1] = NUM2DBL(altitude);
	double xout[2];

	swe_azalt_rev(NUM2DBL(julian_day), NUM2INT(flag), geopos, xin, xout);

	VALUE output = rb_ary_new();
	rb_ary_push(output, rb_float_new(xout[0]));
	rb_ary_push(output, rb_float_new(xout[1]));
	return output;
}

.swe_calc(julian_et, body, iflag) ⇒ Object

Calculation of planets, moon, asteroids, etc. (ET/TT version) int32 swe_calc(double tjd_et, int ipl, int32 iflag, double *xx, char *serr);



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# File 'ext/swisseph/swisseph.c', line 266

static VALUE t_swe_calc(VALUE self, VALUE julian_et, VALUE body, VALUE iflag)
{
	double results[6];
	char serr[AS_MAXCH];

	if (swe_calc(NUM2DBL(julian_et), NUM2INT(body), NUM2LONG(iflag), results, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(output, rb_float_new(results[i]));

	return output;
}

.swe_calc_pctr(julian_et, body, center, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1130

static VALUE t_swe_calc_pctr(VALUE self, VALUE julian_et, VALUE body, VALUE center, VALUE iflag)
{
	char serr[AS_MAXCH];
	double xxret[6];

	if (swe_calc_pctr(NUM2DBL(julian_et), NUM2INT(body), NUM2INT(center), NUM2INT(iflag), xxret, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(output, rb_float_new(xxret[i]));

	return output;
}

.swe_calc_ut(julian_ut, body, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 247

static VALUE t_swe_calc_ut(VALUE self, VALUE julian_ut, VALUE body, VALUE iflag)
{
	double results[6];
	char serr[AS_MAXCH];

	if (swe_calc_ut(NUM2DBL(julian_ut), NUM2INT(body), NUM2LONG(iflag), results, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(output, rb_float_new(results[i]));

	return output;
}

.swe_close ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 56

static VALUE t_swe_close(VALUE self)
{
	swe_close();
	return Qnil;
}

.swe_cotrans(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 828

static VALUE t_swe_cotrans(int argc, VALUE *argv, VALUE self)
{
	// VALUE self, VALUE VALUE lon, VALUE lat, VALUE distance
	if (argc < 3 || argc > 4)
	{ // there should only be 3 or 4 arguments
		rb_raise(rb_eArgError, "wrong number of arguments");
	}
	double eps = NUM2DBL(argv[0]);
	double xpo[3];
	xpo[0] = NUM2DBL(argv[1]); // NUM2DBL(lon);
	xpo[1] = NUM2DBL(argv[2]); // NUM2DBL(lat);
	xpo[2] = NUM2DBL((argc == 4) ? argv[3] : 1.0);

	double xpn[3];

	swe_cotrans(xpo, xpn, eps);

	VALUE output = rb_ary_new();
	rb_ary_push(output, rb_float_new(xpn[0]));
	rb_ary_push(output, rb_float_new(xpn[1]));
	if (argc == 4)
		rb_ary_push(output, rb_float_new(xpn[2]));
	return output;
}

.swe_cotrans_sp(eps, lon, lat, dist, lon_speed, lat_speed, dist_speed) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 859

static VALUE t_swe_cotrans_sp(VALUE self, VALUE eps, VALUE lon, VALUE lat, VALUE dist, VALUE lon_speed, VALUE lat_speed, VALUE dist_speed)
{
	double xpo[6];
	xpo[0] = NUM2DBL(lon);
	xpo[1] = NUM2DBL(lat);
	xpo[2] = NUM2DBL(dist);
	xpo[3] = NUM2DBL(lon_speed);
	xpo[4] = NUM2DBL(lat_speed);
	xpo[5] = NUM2DBL(dist_speed);

	double xpn[6];

	swe_cotrans_sp(xpo, xpn, NUM2DBL(eps));

	VALUE output = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(output, rb_float_new(xpn[i]));
	return output;
}

.swe_day_of_week(jd) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 215

static VALUE t_swe_day_of_week(VALUE self, VALUE jd)
{
	return INT2NUM(swe_day_of_week(NUM2DBL(jd)));
}

.swe_degnorm(deg) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 301

static VALUE t_swe_degnorm(VALUE self, VALUE deg)
{
	return rb_float_new(swe_degnorm(NUM2DBL(deg)));
}

.swe_deltat(julian_ut) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1194

static VALUE t_swe_deltat(VALUE self, VALUE julian_ut)
{
	double delta_t = swe_deltat(NUM2DBL(julian_ut));
	return rb_float_new(delta_t);
}

.swe_deltat_ex(julian_ut, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1205

static VALUE t_swe_deltat_ex(VALUE self, VALUE julian_ut, VALUE iflag)
{
	char serr[AS_MAXCH];
	double delta_t = swe_deltat_ex(NUM2DBL(julian_ut), NUM2INT(iflag), serr);

	// If there's an error message, return it along with the delta_t value
	if (serr[0] != '\0')
	{
		VALUE result = rb_ary_new();
		rb_ary_push(result, rb_float_new(delta_t));
		rb_ary_push(result, rb_str_new_cstr(serr));
		return result;
	}

	return rb_float_new(delta_t);
}

.swe_fixstar(star, julian_et, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1222

static VALUE t_swe_fixstar(VALUE self, VALUE star, VALUE julian_et, VALUE iflag)
{
	char serr[AS_MAXCH];
	double results[6];

	if (swe_fixstar(StringValuePtr(star), NUM2DBL(julian_et), NUM2INT(iflag), results, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(output, rb_float_new(results[i]));

	return output;
}

.swe_fixstar2(star, julian_et, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1263

static VALUE t_swe_fixstar2(VALUE self, VALUE star, VALUE julian_et, VALUE iflag)
{
	char serr[AS_MAXCH];
	double results[6];

	if (swe_fixstar2(StringValuePtr(star), NUM2DBL(julian_et), NUM2INT(iflag), results, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(output, rb_float_new(results[i]));

	return output;
}

.swe_fixstar2_mag(star) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1293

static VALUE t_swe_fixstar2_mag(VALUE self, VALUE star)
{
	char serr[AS_MAXCH];
	double mag;

	if (swe_fixstar2_mag(StringValuePtr(star), &mag, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	return rb_float_new(mag);
}

.swe_fixstar2_ut(star, julian_ut, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1278

static VALUE t_swe_fixstar2_ut(VALUE self, VALUE star, VALUE julian_ut, VALUE iflag)
{
	char serr[AS_MAXCH];
	double results[6];

	if (swe_fixstar2_ut(StringValuePtr(star), NUM2DBL(julian_ut), NUM2INT(iflag), results, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(output, rb_float_new(results[i]));

	return output;
}

.swe_fixstar_mag(star) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1252

static VALUE t_swe_fixstar_mag(VALUE self, VALUE star)
{
	char serr[AS_MAXCH];
	double mag;

	if (swe_fixstar_mag(StringValuePtr(star), &mag, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	return rb_float_new(mag);
}

.swe_fixstar_ut(star, julian_ut, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1237

static VALUE t_swe_fixstar_ut(VALUE self, VALUE star, VALUE julian_ut, VALUE iflag)
{
	char serr[AS_MAXCH];
	double results[6];

	if (swe_fixstar_ut(StringValuePtr(star), NUM2DBL(julian_ut), NUM2INT(iflag), results, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(output, rb_float_new(results[i]));

	return output;
}

.swe_gauquelin_sector(tjd_ut, body, iflag, imeth, lon, lat, height, atpress, attemp) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1402

static VALUE t_swe_gauquelin_sector(VALUE self, VALUE tjd_ut, VALUE body, VALUE iflag, VALUE imeth, VALUE lon, VALUE lat, VALUE height, VALUE atpress, VALUE attemp)
{
	char serr[AS_MAXCH];
	double geopos[3];
	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);
	double dgsect;
	int ipl;
	char *starname;

	if (TYPE(body) == T_STRING) {
		starname = StringValuePtr(body);
		ipl = 0;
	} else {
		ipl = NUM2INT(body);
		starname = NULL;
	}

	if (swe_gauquelin_sector(NUM2DBL(tjd_ut), ipl, starname, NUM2INT(iflag), NUM2INT(imeth), geopos, NUM2DBL(atpress), NUM2DBL(attemp), &dgsect, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	return rb_float_new(dgsect);
}

.swe_get_ayanamsa(julian_et) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 370

static VALUE t_swe_get_ayanamsa(VALUE self, VALUE julian_et)
{
	double ayanamsa = swe_get_ayanamsa(NUM2DBL(julian_et));
	return rb_float_new(ayanamsa);
}

.swe_get_ayanamsa_ex(julian_et, flag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 403

static VALUE t_swe_get_ayanamsa_ex(VALUE self, VALUE julian_et, VALUE flag)
{
	double ayanamsha;
	char serr[AS_MAXCH];

	if (swe_get_ayanamsa_ex(NUM2DBL(julian_et), NUM2INT(flag), &ayanamsha, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	return rb_float_new(ayanamsha);
}

.swe_get_ayanamsa_ex_ut(julian_ut, flag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 388

static VALUE t_swe_get_ayanamsa_ex_ut(VALUE self, VALUE julian_ut, VALUE flag)
{
	double ayanamsha;
	char serr[AS_MAXCH];

	if (swe_get_ayanamsa_ex_ut(NUM2DBL(julian_ut), NUM2INT(flag), &ayanamsha, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	return rb_float_new(ayanamsha);
}

.swe_get_ayanamsa_name(isidmode) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 88

static VALUE t_swe_get_ayanamsa_name(VALUE self, VALUE isidmode)
{
	const char *name = swe_get_ayanamsa_name(NUM2INT(isidmode));
	if (name == NULL)
		return Qnil;
	return rb_str_new_cstr(name);
}

.swe_get_ayanamsa_ut(julian_ut) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 360

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);
}

.swe_get_orbital_elements(julian_et, body, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1174

static VALUE t_swe_get_orbital_elements(VALUE self, VALUE julian_et, VALUE body, VALUE iflag)
{
	char serr[AS_MAXCH];
	double dret[17]; // Array to store the return values

	if (swe_get_orbital_elements(NUM2DBL(julian_et), NUM2INT(body), NUM2INT(iflag), dret, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 17; i++)
		rb_ary_push(output, rb_float_new(dret[i]));

	return output;
}

.swe_get_planet_name(ipl) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 77

static VALUE t_swe_get_planet_name(VALUE self, VALUE ipl)
{
	char name[AS_MAXCH];
	swe_get_planet_name(NUM2INT(ipl), name);
	return rb_str_new_cstr(name);
}

.swe_heliacal_angle(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1737

static VALUE t_swe_heliacal_angle(int argc, VALUE *argv, VALUE self)
{
	if (argc != 12)
		rb_raise(rb_eArgError, "wrong number of arguments (12 required: tjdut, helflag, mag, azi_obj, azi_sun, azi_moon, alt_moon, lon, lat, height, datm_array, dobs_array)");

	char serr[AS_MAXCH];
	double dgeo[3];
	dgeo[0] = NUM2DBL(argv[7]); // lon
	dgeo[1] = NUM2DBL(argv[8]); // lat
	dgeo[2] = NUM2DBL(argv[9]); // height

	VALUE datm_arr = argv[10];
	if (TYPE(datm_arr) != T_ARRAY || RARRAY_LEN(datm_arr) < 4)
		rb_raise(rb_eArgError, "datm must be array of 4 values [pressure, temp, humidity, extinction_coeff]");
	double datm[4];
	for (int i = 0; i < 4; i++)
		datm[i] = NUM2DBL(rb_ary_entry(datm_arr, i));

	VALUE dobs_arr = argv[11];
	if (TYPE(dobs_arr) != T_ARRAY || RARRAY_LEN(dobs_arr) < 6)
		rb_raise(rb_eArgError, "dobs must be array of 6 values [age, snellen_left, snellen_right, telescope_mag, telescope_diam, binoc_factor]");
	double dobs[6];
	for (int i = 0; i < 6; i++)
		dobs[i] = NUM2DBL(rb_ary_entry(dobs_arr, i));

	double dret[20];
	if (swe_heliacal_angle(NUM2DBL(argv[0]), dgeo, datm, dobs, NUM2INT(argv[1]),
			NUM2DBL(argv[2]), NUM2DBL(argv[3]), NUM2DBL(argv[4]), NUM2DBL(argv[5]), NUM2DBL(argv[6]), dret, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 3; i++)
		rb_ary_push(output, rb_float_new(dret[i]));
	return output;
}

.swe_heliacal_pheno_ut(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1692

static VALUE t_swe_heliacal_pheno_ut(int argc, VALUE *argv, VALUE self)
{
	if (argc != 9)
		rb_raise(rb_eArgError, "wrong number of arguments (9 required: tjd_ut, object_name, type_event, helflag, lon, lat, height, datm_array, dobs_array)");

	char serr[AS_MAXCH];
	double geopos[3];
	geopos[0] = NUM2DBL(argv[4]); // lon
	geopos[1] = NUM2DBL(argv[5]); // lat
	geopos[2] = NUM2DBL(argv[6]); // height

	VALUE datm_arr = argv[7];
	if (TYPE(datm_arr) != T_ARRAY || RARRAY_LEN(datm_arr) < 4)
		rb_raise(rb_eArgError, "datm must be array of 4 values [pressure, temp, humidity, extinction_coeff]");
	double datm[4];
	for (int i = 0; i < 4; i++)
		datm[i] = NUM2DBL(rb_ary_entry(datm_arr, i));

	VALUE dobs_arr = argv[8];
	if (TYPE(dobs_arr) != T_ARRAY || RARRAY_LEN(dobs_arr) < 6)
		rb_raise(rb_eArgError, "dobs must be array of 6 values [age, snellen_left, snellen_right, telescope_mag, telescope_diam, binoc_factor]");
	double dobs[6];
	for (int i = 0; i < 6; i++)
		dobs[i] = NUM2DBL(rb_ary_entry(dobs_arr, i));

	double darr[50];
	char *object_name = StringValuePtr(argv[1]);

	if (swe_heliacal_pheno_ut(NUM2DBL(argv[0]), geopos, datm, dobs, object_name, NUM2INT(argv[2]), NUM2INT(argv[3]), darr, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 50; i++)
		rb_ary_push(output, rb_float_new(darr[i]));
	return output;
}

.swe_heliacal_ut(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1313

static VALUE t_swe_heliacal_ut(int argc, VALUE *argv, VALUE self)
{
	if (argc != 9)
		rb_raise(rb_eArgError, "wrong number of arguments (9 required: tjd_ut, object_name, type_event, iflag, lon, lat, height, datm_array, dobs_array)");

	char serr[AS_MAXCH];
	double geopos[3];
	geopos[0] = NUM2DBL(argv[4]); // lon
	geopos[1] = NUM2DBL(argv[5]); // lat
	geopos[2] = NUM2DBL(argv[6]); // height

	// datm: atmospheric data array (4 doubles)
	VALUE datm_arr = argv[7];
	if (TYPE(datm_arr) != T_ARRAY || RARRAY_LEN(datm_arr) < 4)
		rb_raise(rb_eArgError, "datm must be array of 4 values [pressure, temp, humidity, extinction_coeff]");
	double datm[4];
	for (int i = 0; i < 4; i++)
		datm[i] = NUM2DBL(rb_ary_entry(datm_arr, i));

	// dobs: observer data array (6 doubles)
	VALUE dobs_arr = argv[8];
	if (TYPE(dobs_arr) != T_ARRAY || RARRAY_LEN(dobs_arr) < 6)
		rb_raise(rb_eArgError, "dobs must be array of 6 values [age, snellen_left, snellen_right, telescope_mag, telescope_diam, binoc_factor]");
	double dobs[6];
	for (int i = 0; i < 6; i++)
		dobs[i] = NUM2DBL(rb_ary_entry(dobs_arr, i));

	double dret[50];
	char *object_name = StringValuePtr(argv[1]);

	if (swe_heliacal_ut(NUM2DBL(argv[0]), geopos, datm, dobs, object_name, NUM2INT(argv[2]), NUM2INT(argv[3]), dret, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 50; i++)
		rb_ary_push(output, rb_float_new(dret[i]));
	return output;
}

.swe_helio_cross(body, x2cross, tjd_et, iflag, dir) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1029

static VALUE t_swe_helio_cross(VALUE self, VALUE body, VALUE x2cross, VALUE tjd_et, VALUE iflag, VALUE dir)
{
	char serr[AS_MAXCH];
	serr[0] = '\0';
	double jx;
	int32 retval = swe_helio_cross(NUM2INT(body), NUM2DBL(x2cross), NUM2DBL(tjd_et), NUM2INT(iflag), NUM2INT(dir), &jx, serr);
	if (retval < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);
	return rb_float_new(jx);
}

.swe_helio_cross_ut(body, x2cross, tjd_ut, iflag, dir) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 961

static VALUE t_swe_helio_cross_ut(VALUE self, VALUE body, VALUE x2cross, VALUE tjd_ut, VALUE iflag, VALUE dir)
{
	char serr[AS_MAXCH];
	serr[0] = '\0';
	double jx;
	int32 retval = swe_helio_cross_ut(NUM2INT(body), NUM2DBL(x2cross), NUM2DBL(tjd_ut), NUM2INT(iflag), NUM2INT(dir), &jx, serr);
	if (retval < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);
	return rb_float_new(jx);
}

.swe_house_name(hsys) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 583

static VALUE t_swe_house_name(VALUE self, VALUE hsys)
{
	return rb_str_new_cstr(swe_house_name(NUM2CHR(hsys)));
}

.swe_house_pos(armc, geolat, eps, hsys, eclon, eclat) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 879

static VALUE t_swe_house_pos(VALUE self, VALUE armc, VALUE geolat, VALUE eps, VALUE hsys, VALUE eclon, VALUE eclat)
{
	// double armc,        /* ARMC */
	// double geolat,      /* geographic latitude, in degrees */
	// double eps,              /* ecliptic obliquity, in degrees */
	// int hsys,                /* house method, one of the letters PKRCAV */
	// double *xpin,       /* array of 2 doubles: ecl. longitude and latitude of the planet */
	// char *serr);             /* return area for error or warning message */

	double eclpos[2];
	eclpos[0] = NUM2DBL(eclon);
	eclpos[1] = NUM2DBL(eclat);
	char serr[AS_MAXCH];

	double retval = swe_house_pos(NUM2DBL(armc), NUM2DBL(geolat), NUM2DBL(eps), NUM2INT(hsys), eclpos, serr);
	if (retval < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_float_new(retval);
	return output;
}

.swe_houses(julian_day, latitude, longitude, house_system) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 443

static VALUE t_swe_houses(VALUE self, VALUE julian_day, VALUE latitude, VALUE longitude, VALUE house_system)
{
	double cusps[37];  // 37 for Gauquelin sectors, 13 for others
	double ascmc[10];
	char serr[AS_MAXCH];
	char hsys = NUM2CHR(house_system);
	int num_cusps = (hsys == 'G') ? 37 : 13;

	if (swe_houses(NUM2DBL(julian_day), NUM2DBL(latitude), NUM2DBL(longitude), hsys, cusps, ascmc) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE _cusps = rb_ary_new();
	for (int i = 0; i < num_cusps; i++)
		rb_ary_push(_cusps, rb_float_new(cusps[i]));

	VALUE _ascmc = rb_ary_new();
	for (int i = 0; i < 10; i++)
		rb_ary_push(_ascmc, rb_float_new(ascmc[i]));

	VALUE output = rb_ary_new();
	rb_ary_push(output, _cusps);
	rb_ary_push(output, _ascmc);
	return output;
}

.swe_houses_armc(armc, latitude, eps, house_system) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 501

static VALUE t_swe_houses_armc(VALUE self, VALUE armc, VALUE latitude, VALUE eps, VALUE house_system)
{
	double cusps[37];  // 37 for Gauquelin sectors, 13 for others
	double ascmc[10];
	char serr[AS_MAXCH];
	char hsys = NUM2CHR(house_system);
	int num_cusps = (hsys == 'G') ? 37 : 13;

	if (swe_houses_armc(NUM2DBL(armc), NUM2DBL(latitude), NUM2DBL(eps), hsys, cusps, ascmc) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE _cusps = rb_ary_new();
	for (int i = 0; i < num_cusps; i++)
		rb_ary_push(_cusps, rb_float_new(cusps[i]));

	VALUE _ascmc = rb_ary_new();
	for (int i = 0; i < 10; i++)
		rb_ary_push(_ascmc, rb_float_new(ascmc[i]));

	VALUE output = rb_ary_new();
	rb_ary_push(output, _cusps);
	rb_ary_push(output, _ascmc);
	return output;
}

.swe_houses_ex(julian_day, iflag, latitude, longitude, house_system) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 472

static VALUE t_swe_houses_ex(VALUE self, VALUE julian_day, VALUE iflag, VALUE latitude, VALUE longitude, VALUE house_system)
{
	double cusps[37];  // 37 for Gauquelin sectors, 13 for others
	double ascmc[10];
	char serr[AS_MAXCH];
	char hsys = NUM2CHR(house_system);
	int num_cusps = (hsys == 'G') ? 37 : 13;

	if (swe_houses_ex(NUM2DBL(julian_day), NUM2INT(iflag), NUM2DBL(latitude), NUM2DBL(longitude), hsys, cusps, ascmc) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE _cusps = rb_ary_new();
	for (int i = 0; i < num_cusps; i++)
		rb_ary_push(_cusps, rb_float_new(cusps[i]));

	VALUE _ascmc = rb_ary_new();
	for (int i = 0; i < 10; i++)
		rb_ary_push(_ascmc, rb_float_new(ascmc[i]));

	VALUE output = rb_ary_new();
	rb_ary_push(output, _cusps);
	rb_ary_push(output, _ascmc);
	return output;
}

.swe_houses_ex2(julian_day, flag, latitude, longitude, house_system) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 544

static VALUE t_swe_houses_ex2(VALUE self, VALUE julian_day, VALUE flag, VALUE latitude, VALUE longitude, VALUE house_system)
{
	double cusps[37];        // 37 for Gauquelin sectors, 13 for others
	double ascmc[10];
	double cusps_speed[37];  // 37 for Gauquelin sectors, 13 for others
	double ascmc_speed[10];
	char serr[AS_MAXCH];
	char hsys = NUM2CHR(house_system);
	int num_cusps = (hsys == 'G') ? 37 : 13;

	if (swe_houses_ex2(NUM2DBL(julian_day), NUM2INT(flag), NUM2DBL(latitude), NUM2DBL(longitude), hsys, cusps, ascmc, cusps_speed, ascmc_speed, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE _cusps = rb_ary_new();
	for (int i = 0; i < num_cusps; i++)
		rb_ary_push(_cusps, rb_float_new(cusps[i]));

	VALUE _ascmc = rb_ary_new();
	for (int i = 0; i < 10; i++)
		rb_ary_push(_ascmc, rb_float_new(ascmc[i]));

	VALUE _cusps_speed = rb_ary_new();
	for (int i = 0; i < num_cusps; i++)
		rb_ary_push(_cusps_speed, rb_float_new(cusps_speed[i]));

	VALUE _ascmc_speed = rb_ary_new();
	for (int i = 0; i < 10; i++)
		rb_ary_push(_ascmc_speed, rb_float_new(ascmc_speed[i]));

	VALUE output = rb_ary_new();
	rb_ary_push(output, _cusps);
	rb_ary_push(output, _ascmc);
	rb_ary_push(output, _cusps_speed);
	rb_ary_push(output, _ascmc_speed);
	return output;
}

.swe_jdut1_to_utc(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 189

static VALUE t_swe_jdut1_to_utc(int argc, VALUE *argv, VALUE self)
{
	if (argc < 1 || argc > 2)
		rb_raise(rb_eArgError, "wrong number of arguments (1 or 2)");

	int32 gregflag = (argc == 2) ? NUM2INT(argv[1]) : SE_GREG_CAL;
	int32 year, month, day, hour, min;
	double sec;

	swe_jdut1_to_utc(NUM2DBL(argv[0]), gregflag, &year, &month, &day, &hour, &min, &sec);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(year));
	rb_ary_push(output, INT2NUM(month));
	rb_ary_push(output, INT2NUM(day));
	rb_ary_push(output, INT2NUM(hour));
	rb_ary_push(output, INT2NUM(min));
	rb_ary_push(output, rb_float_new(sec));
	return output;
}

.swe_julday(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 107

static VALUE t_swe_julday(int argc, VALUE *argv, VALUE self)
{
	VALUE greg_flag;

	if (argc > 5 || argc < 4)
	{ // there should only be 4 or 5 arguments
		rb_raise(rb_eArgError, "wrong number of arguments");
	}
	greg_flag = (argc == 5) ? NUM2INT(argv[4]) : SE_GREG_CAL;

	double julday = swe_julday(NUM2INT(argv[0]), NUM2INT(argv[1]), NUM2INT(argv[2]), NUM2DBL(argv[3]), greg_flag);
	return rb_float_new(julday);
}

.swe_lat_to_lmt(tjd_lat, geolon) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 809

static VALUE t_swe_lat_to_lmt(VALUE self, VALUE tjd_lat, VALUE geolon)
{
	double tjd_lmt;
	char serr[AS_MAXCH];

	if (swe_lat_to_lmt(NUM2DBL(tjd_lat), NUM2DBL(geolon), &tjd_lmt, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	return rb_float_new(tjd_lmt);
}

.swe_lmt_to_lat(tjd_lmt, geolon) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 794

static VALUE t_swe_lmt_to_lat(VALUE self, VALUE tjd_lmt, VALUE geolon)
{
	double tjd_lat;
	char serr[AS_MAXCH];

	if (swe_lmt_to_lat(NUM2DBL(tjd_lmt), NUM2DBL(geolon), &tjd_lat, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	return rb_float_new(tjd_lat);
}

.swe_lun_eclipse_how(tjd, ifl, lon, lat, height) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1644

static VALUE t_swe_lun_eclipse_how(VALUE self, VALUE tjd, VALUE ifl, VALUE lon, VALUE lat, VALUE height)
{
	char serr[AS_MAXCH];
	double geopos[3];
	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);
	double attr[20];

	int32 result = swe_lun_eclipse_how(NUM2DBL(tjd), NUM2INT(ifl), geopos, attr, serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags
	for (int i = 0; i < 20; i++)
		rb_ary_push(output, rb_float_new(attr[i]));
	return output;
}

.swe_lun_eclipse_when(tjd_start, ifl, ifltype, backward) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1576

static VALUE t_swe_lun_eclipse_when(VALUE self, VALUE tjd_start, VALUE ifl, VALUE ifltype, VALUE backward)
{
	char serr[AS_MAXCH];
	double tret[10];

	int32 result = swe_lun_eclipse_when(NUM2DBL(tjd_start), NUM2INT(ifl), NUM2INT(ifltype), tret, NUM2INT(backward), serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags
	for (int i = 0; i < 10; i++)
		rb_ary_push(output, rb_float_new(tret[i]));
	return output;
}

.swe_lun_eclipse_when_loc(tjd_start, ifl, lon, lat, height, backward) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1597

static VALUE t_swe_lun_eclipse_when_loc(VALUE self, VALUE tjd_start, VALUE ifl, VALUE lon, VALUE lat, VALUE height, VALUE backward)
{
	char serr[AS_MAXCH];
	double geopos[3];
	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);
	double tret[10];
	double attr[20];

	int32 result = swe_lun_eclipse_when_loc(NUM2DBL(tjd_start), NUM2INT(ifl), geopos, tret, attr, NUM2INT(backward), serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags

	VALUE _tret = rb_ary_new();
	for (int i = 0; i < 10; i++)
		rb_ary_push(_tret, rb_float_new(tret[i]));
	rb_ary_push(output, _tret);

	VALUE _attr = rb_ary_new();
	for (int i = 0; i < 20; i++)
		rb_ary_push(_attr, rb_float_new(attr[i]));
	rb_ary_push(output, _attr);

	return output;
}

.swe_lun_occult_when_glob(tjd_start, ipl, starname, ifl, ifltype, backward) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1914

static VALUE t_swe_lun_occult_when_glob(VALUE self, VALUE tjd_start, VALUE ipl, VALUE starname, VALUE ifl, VALUE ifltype, VALUE backward)
{
	char serr[AS_MAXCH];
	char star[AS_MAXCH];
	double tret[10];

	if (NIL_P(starname))
		star[0] = '\0';
	else {
		strncpy(star, StringValueCStr(starname), AS_MAXCH - 1);
		star[AS_MAXCH - 1] = '\0';
	}

	int32 result = swe_lun_occult_when_glob(NUM2DBL(tjd_start), NUM2INT(ipl), star, NUM2INT(ifl), NUM2INT(ifltype), tret, NUM2INT(backward), serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags
	for (int i = 0; i < 10; i++)
		rb_ary_push(output, rb_float_new(tret[i]));
	return output;
}

.swe_lun_occult_when_loc(tjd_start, ipl, starname, ifl, lon, lat, height, backward) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1866

static VALUE t_swe_lun_occult_when_loc(VALUE self, VALUE tjd_start, VALUE ipl, VALUE starname, VALUE ifl, VALUE lon, VALUE lat, VALUE height, VALUE backward)
{
	char serr[AS_MAXCH];
	char star[AS_MAXCH];
	double geopos[3];
	double tret[10];
	double attr[20];

	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);

	if (NIL_P(starname))
		star[0] = '\0';
	else {
		strncpy(star, StringValueCStr(starname), AS_MAXCH - 1);
		star[AS_MAXCH - 1] = '\0';
	}

	int32 result = swe_lun_occult_when_loc(NUM2DBL(tjd_start), NUM2INT(ipl), star, NUM2INT(ifl), geopos, tret, attr, NUM2INT(backward), serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags

	VALUE _tret = rb_ary_new();
	for (int i = 0; i < 10; i++)
		rb_ary_push(_tret, rb_float_new(tret[i]));
	rb_ary_push(output, _tret);

	VALUE _attr = rb_ary_new();
	for (int i = 0; i < 20; i++)
		rb_ary_push(_attr, rb_float_new(attr[i]));
	rb_ary_push(output, _attr);

	return output;
}

.swe_lun_occult_where(tjd, ipl, starname, ifl) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1824

static VALUE t_swe_lun_occult_where(VALUE self, VALUE tjd, VALUE ipl, VALUE starname, VALUE ifl)
{
	char serr[AS_MAXCH];
	char star[AS_MAXCH];
	double geopos[10];
	double attr[20];

	if (NIL_P(starname))
		star[0] = '\0';
	else {
		strncpy(star, StringValueCStr(starname), AS_MAXCH - 1);
		star[AS_MAXCH - 1] = '\0';
	}

	int32 result = swe_lun_occult_where(NUM2DBL(tjd), NUM2INT(ipl), star, NUM2INT(ifl), geopos, attr, serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags

	VALUE _geopos = rb_ary_new();
	rb_ary_push(_geopos, rb_float_new(geopos[0])); // longitude
	rb_ary_push(_geopos, rb_float_new(geopos[1])); // latitude
	rb_ary_push(output, _geopos);

	VALUE _attr = rb_ary_new();
	for (int i = 0; i < 20; i++)
		rb_ary_push(_attr, rb_float_new(attr[i]));
	rb_ary_push(output, _attr);

	return output;
}

.swe_mooncross(x2cross, tjd_et, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 992

static VALUE t_swe_mooncross(VALUE self, VALUE x2cross, VALUE tjd_et, VALUE iflag)
{
	char serr[AS_MAXCH];
	serr[0] = '\0';
	double tjd = NUM2DBL(tjd_et);

	double retval = swe_mooncross(NUM2DBL(x2cross), tjd, NUM2INT(iflag), serr);
	if (retval < tjd)
		rb_raise(rb_eRuntimeError, "%s", serr);
	return rb_float_new(retval);
}

.swe_mooncross_node(tjd_et, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1008

static VALUE t_swe_mooncross_node(VALUE self, VALUE tjd_et, VALUE iflag)
{
	char serr[AS_MAXCH];
	serr[0] = '\0';
	double tjd = NUM2DBL(tjd_et);
	double xlon, xlat;
	double retval = swe_mooncross_node(tjd, NUM2INT(iflag), &xlon, &xlat, serr);
	if (retval < tjd)
		rb_raise(rb_eRuntimeError, "%s", serr);
	VALUE output = rb_ary_new();
	rb_ary_push(output, rb_float_new(retval));
	rb_ary_push(output, rb_float_new(xlon));
	rb_ary_push(output, rb_float_new(xlat));

	return output;
}

.swe_mooncross_node_ut(tjd_ut, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 941

static VALUE t_swe_mooncross_node_ut(VALUE self, VALUE tjd_ut, VALUE iflag)
{
	char serr[AS_MAXCH];
	serr[0] = '\0';
	double tjd = NUM2DBL(tjd_ut);
	double xlon, xlat;
	double retval = swe_mooncross_node_ut(tjd, NUM2INT(iflag), &xlon, &xlat, serr);
	if (retval < tjd)
		rb_raise(rb_eRuntimeError, "%s", serr);
	VALUE output = rb_ary_new();
	rb_ary_push(output, rb_float_new(retval));
	rb_ary_push(output, rb_float_new(xlon));
	rb_ary_push(output, rb_float_new(xlat));

	return output;
}

.swe_mooncross_ut(x2cross, tjd_ut, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 921

static VALUE t_swe_mooncross_ut(VALUE self, VALUE x2cross, VALUE tjd_ut, VALUE iflag)
{
	char serr[AS_MAXCH];
	serr[0] = '\0';
	double tjd = NUM2DBL(tjd_ut);

	double retval = swe_mooncross_ut(NUM2DBL(x2cross), tjd, NUM2INT(iflag), serr);
	if (retval < tjd)
		rb_raise(rb_eRuntimeError, "%s", serr);
	return rb_float_new(retval);
}

.swe_nod_aps(julian_et, body, iflag, method) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1084

static VALUE t_swe_nod_aps(VALUE self, VALUE julian_et, VALUE body, VALUE iflag, VALUE method)
{
	char serr[AS_MAXCH];
	double xnasc[6];
	double xndsc[6];
	double xperi[6];
	double xaphe[6];

	if (swe_nod_aps(NUM2DBL(julian_et), NUM2INT(body), NUM2INT(iflag), NUM2INT(method), xnasc, xndsc, xperi, xaphe, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();

	VALUE ascending = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(ascending, rb_float_new(xnasc[i]));
	rb_ary_push(output, ascending);

	VALUE descending = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(descending, rb_float_new(xndsc[i]));
	rb_ary_push(output, descending);

	VALUE perihelion = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(perihelion, rb_float_new(xperi[i]));
	rb_ary_push(output, perihelion);

	VALUE aphelion = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(aphelion, rb_float_new(xaphe[i]));
	rb_ary_push(output, aphelion);

	return output; // return array of arrays
}

.swe_nod_aps_ut(julian_ut, body, iflag, method) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1044

static VALUE t_swe_nod_aps_ut(VALUE self, VALUE julian_ut, VALUE body, VALUE iflag, VALUE method)
{
	char serr[AS_MAXCH];
	double xnasc[6];
	double xndsc[6];
	double xperi[6];
	double xaphe[6];

	if (swe_nod_aps_ut(NUM2DBL(julian_ut), NUM2INT(body), NUM2INT(iflag), NUM2INT(method), xnasc, xndsc, xperi, xaphe, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();

	VALUE ascending = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(ascending, rb_float_new(xnasc[i]));
	rb_ary_push(output, ascending);

	VALUE descending = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(descending, rb_float_new(xndsc[i]));
	rb_ary_push(output, descending);

	VALUE perihelion = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(perihelion, rb_float_new(xperi[i]));
	rb_ary_push(output, perihelion);

	VALUE aphelion = rb_ary_new();
	for (int i = 0; i < 6; i++)
		rb_ary_push(aphelion, rb_float_new(xaphe[i]));
	rb_ary_push(output, aphelion);

	return output; // return array of arrays
}

.swe_pheno_ut(julian_ut, ipl, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 760

static VALUE t_swe_pheno_ut(VALUE self, VALUE julian_ut, VALUE ipl, VALUE iflag)
{
	double attr[20];
	char serr[AS_MAXCH];

	if (swe_pheno_ut(NUM2DBL(julian_ut), NUM2INT(ipl), NUM2INT(iflag), attr, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 7; i++)
		rb_ary_push(output, rb_float_new(attr[i]));
	return output;
}

.swe_radnorm(rad) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 310

static VALUE t_swe_radnorm(VALUE self, VALUE rad)
{
	return rb_float_new(swe_radnorm(NUM2DBL(rad)));
}

.swe_refrac(inalt, atpress, attemp, calc_flag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 742

static VALUE t_swe_refrac(VALUE self, VALUE inalt, VALUE atpress, VALUE attemp, VALUE calc_flag)
{
	double result = swe_refrac(NUM2DBL(inalt), NUM2DBL(atpress), NUM2DBL(attemp), NUM2INT(calc_flag));
	return rb_float_new(result);
}

.swe_refrac_extended(inalt, geoalt, atpress, attemp, lapse_rate, calc_flag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1673

static VALUE t_swe_refrac_extended(VALUE self, VALUE inalt, VALUE geoalt, VALUE atpress, VALUE attemp, VALUE lapse_rate, VALUE calc_flag)
{
	double dret[20];
	double result = swe_refrac_extended(NUM2DBL(inalt), NUM2DBL(geoalt), NUM2DBL(atpress), NUM2DBL(attemp), NUM2DBL(lapse_rate), NUM2INT(calc_flag), dret);

	VALUE output = rb_ary_new();
	rb_ary_push(output, rb_float_new(result));
	for (int i = 0; i < 4; i++)
		rb_ary_push(output, rb_float_new(dret[i]));
	return output;
}

.swe_revjul(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 132

static VALUE t_swe_revjul(int argc, VALUE *argv, VALUE self)
{
	if (argc > 2 || argc < 1)
	{ // there should only be 2 or 3 arguments
		rb_raise(rb_eArgError, "wrong number of arguments");
	}
	VALUE greg_flag = (argc == 2) ? NUM2INT(argv[1]) : SE_GREG_CAL;

	int year, month, day;
	double hour;

	swe_revjul(NUM2DBL(argv[0]), greg_flag, &year, &month, &day, &hour);

	VALUE output = rb_ary_new();
	rb_ary_push(output, rb_uint_new(year));
	rb_ary_push(output, rb_uint_new(month));
	rb_ary_push(output, rb_uint_new(day));
	rb_ary_push(output, rb_float_new(hour));
	return output;
}

.swe_rise_trans(julian_day, body, flag, rmsi, lon, lat, height, pressure, temp) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 601

static VALUE t_swe_rise_trans(VALUE self, VALUE julian_day, VALUE body, VALUE flag, VALUE rmsi, VALUE lon, VALUE lat, VALUE height, VALUE pressure, VALUE temp)
{
	double geopos[3];
	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);
	int ipl;
	char *starname;
	if (TYPE(body) == T_STRING)
	{
		starname = StringValuePtr(body);
		ipl = 0;
	}
	else
	{
		ipl = NUM2INT(body);
		starname = NULL;
	}
	char serr[AS_MAXCH];
	double retval;

	if (swe_rise_trans(NUM2DBL(julian_day), ipl, starname, NUM2INT(flag), NUM2INT(rmsi), geopos, NUM2DBL(pressure), NUM2DBL(temp), &retval, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);
	return rb_float_new(retval);
}

.swe_rise_trans_true_hor(julian_day, body, flag, rmsi, lon, lat, height, pressure, temp, hor_height) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 641

static VALUE t_swe_rise_trans_true_hor(VALUE self, VALUE julian_day, VALUE body, VALUE flag, VALUE rmsi, VALUE lon, VALUE lat, VALUE height, VALUE pressure, VALUE temp, VALUE hor_height)
{
	double geopos[3];
	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);
	int ipl;
	char *starname;
	if (TYPE(body) == T_STRING)
	{
		starname = StringValuePtr(body);
		ipl = 0;
	}
	else
	{
		ipl = NUM2INT(body);
		starname = NULL;
	}
	char serr[AS_MAXCH];
	double retval;

	if (swe_rise_trans_true_hor(NUM2DBL(julian_day), ipl, starname, NUM2INT(flag), NUM2INT(rmsi), geopos, NUM2DBL(pressure), NUM2DBL(temp), NUM2DBL(hor_height), &retval, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);
	return rb_float_new(retval);
}

.swe_set_ephe_path(path) ⇒ Object

Set directory path of ephemeris files http://www.astro.com/swisseph/swephprg.htm#_Toc283735481 int swe_set_ephe_path(char *path);



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# File 'ext/swisseph/swisseph.c', line 35

static VALUE t_swe_set_ephe_path(VALUE self, VALUE path)
{
	swe_set_ephe_path(StringValuePtr(path));
	return Qnil;
}

.swe_set_jpl_file(path) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 46

static VALUE t_swe_set_jpl_file(VALUE self, VALUE path)
{
	swe_set_jpl_file(StringValuePtr(path));
	return Qnil;
}

.swe_set_sid_mode(mode, t0, ayan_t0) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 346

static VALUE t_swe_set_sid_mode(VALUE self, VALUE mode, VALUE t0, VALUE ayan_t0)
{
	swe_set_sid_mode(NUM2INT(mode), NUM2DBL(t0), NUM2DBL(ayan_t0));
	return Qnil;
}

.swe_set_topo(lon, lat, alt) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 230

static VALUE t_swe_set_topo(VALUE self, VALUE lon, VALUE lat, VALUE alt)
{
	swe_set_topo(NUM2DBL(lon), NUM2DBL(lat), NUM2DBL(alt));
	return Qnil;
}

.swe_sidtime(julian_ut) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 281

static VALUE t_swe_sidtime(VALUE self, VALUE julian_ut)
{
	double sidtime = swe_sidtime(NUM2DBL(julian_ut));
	return rb_float_new(sidtime);
}

.swe_sidtime0(julian_ut, eps, nut) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 291

static VALUE t_swe_sidtime0(VALUE self, VALUE julian_ut, VALUE eps, VALUE nut)
{
	double sidtime = swe_sidtime0(NUM2DBL(julian_ut), NUM2DBL(eps), NUM2DBL(nut));
	return rb_float_new(sidtime);
}

.swe_sol_eclipse_how(tjd, ifl, lon, lat, height) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1511

static VALUE t_swe_sol_eclipse_how(VALUE self, VALUE tjd, VALUE ifl, VALUE lon, VALUE lat, VALUE height)
{
	char serr[AS_MAXCH];
	double geopos[3];
	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);
	double attr[20];

	int32 result = swe_sol_eclipse_how(NUM2DBL(tjd), NUM2INT(ifl), geopos, attr, serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags
	for (int i = 0; i < 20; i++)
		rb_ary_push(output, rb_float_new(attr[i]));
	return output;
}

.swe_sol_eclipse_when_glob(tjd_start, ifl, ifltype, backward) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1444

static VALUE t_swe_sol_eclipse_when_glob(VALUE self, VALUE tjd_start, VALUE ifl, VALUE ifltype, VALUE backward)
{
	char serr[AS_MAXCH];
	double tret[10];

	int32 result = swe_sol_eclipse_when_glob(NUM2DBL(tjd_start), NUM2INT(ifl), NUM2INT(ifltype), tret, NUM2INT(backward), serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags
	for (int i = 0; i < 10; i++)
		rb_ary_push(output, rb_float_new(tret[i]));
	return output;
}

.swe_sol_eclipse_when_loc(tjd_start, ifl, lon, lat, height, backward) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1465

static VALUE t_swe_sol_eclipse_when_loc(VALUE self, VALUE tjd_start, VALUE ifl, VALUE lon, VALUE lat, VALUE height, VALUE backward)
{
	char serr[AS_MAXCH];
	double geopos[3];
	geopos[0] = NUM2DBL(lon);
	geopos[1] = NUM2DBL(lat);
	geopos[2] = NUM2DBL(height);
	double tret[10];
	double attr[20];

	int32 result = swe_sol_eclipse_when_loc(NUM2DBL(tjd_start), NUM2INT(ifl), geopos, tret, attr, NUM2INT(backward), serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags

	VALUE _tret = rb_ary_new();
	for (int i = 0; i < 10; i++)
		rb_ary_push(_tret, rb_float_new(tret[i]));
	rb_ary_push(output, _tret);

	VALUE _attr = rb_ary_new();
	for (int i = 0; i < 20; i++)
		rb_ary_push(_attr, rb_float_new(attr[i]));
	rb_ary_push(output, _attr);

	return output;
}

.swe_sol_eclipse_where(tjd, ifl) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1536

static VALUE t_swe_sol_eclipse_where(VALUE self, VALUE tjd, VALUE ifl)
{
	char serr[AS_MAXCH];
	double geopos[10];
	double attr[20];

	int32 result = swe_sol_eclipse_where(NUM2DBL(tjd), NUM2INT(ifl), geopos, attr, serr);
	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(result)); // eclipse type flags

	VALUE _geopos = rb_ary_new();
	rb_ary_push(_geopos, rb_float_new(geopos[0])); // longitude
	rb_ary_push(_geopos, rb_float_new(geopos[1])); // latitude
	rb_ary_push(output, _geopos);

	VALUE _attr = rb_ary_new();
	for (int i = 0; i < 20; i++)
		rb_ary_push(_attr, rb_float_new(attr[i]));
	rb_ary_push(output, _attr);

	return output;
}

.swe_solcross(x2cross, tjd_et, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 976

static VALUE t_swe_solcross(VALUE self, VALUE x2cross, VALUE tjd_et, VALUE iflag)
{
	char serr[AS_MAXCH];
	serr[0] = '\0';
	double tjd = NUM2DBL(tjd_et);

	double retval = swe_solcross(NUM2DBL(x2cross), tjd, NUM2INT(iflag), serr);
	if (retval < tjd)
		rb_raise(rb_eRuntimeError, "%s", serr);
	return rb_float_new(retval);
}

.swe_solcross_ut(x2cross, tjd_ut, iflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 905

static VALUE t_swe_solcross_ut(VALUE self, VALUE x2cross, VALUE tjd_ut, VALUE iflag)
{
	char serr[AS_MAXCH];
	serr[0] = '\0';
	double tjd = NUM2DBL(tjd_ut);

	double retval = swe_solcross_ut(NUM2DBL(x2cross), tjd, NUM2INT(iflag), serr);
	if (retval < tjd)
		rb_raise(rb_eRuntimeError, "%s", serr);
	return rb_float_new(retval);
}

.swe_split_deg(ddeg, roundflag) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 321

static VALUE t_swe_split_deg(VALUE self, VALUE ddeg, VALUE roundflag)
{
	int32 ideg, imin, isec, isgn;
	double dsecfr;

	swe_split_deg(NUM2DBL(ddeg), NUM2INT(roundflag), &ideg, &imin, &isec, &dsecfr, &isgn);

	VALUE output = rb_ary_new();
	rb_ary_push(output, INT2NUM(ideg));
	rb_ary_push(output, INT2NUM(imin));
	rb_ary_push(output, INT2NUM(isec));
	rb_ary_push(output, rb_float_new(dsecfr));
	rb_ary_push(output, INT2NUM(isgn));
	return output;
}

.swe_time_equ(tjd) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 779

static VALUE t_swe_time_equ(VALUE self, VALUE tjd)
{
	double te;
	char serr[AS_MAXCH];

	if (swe_time_equ(NUM2DBL(tjd), &te, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	return rb_float_new(te);
}

.swe_topo_arcus_visionis(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1780

static VALUE t_swe_topo_arcus_visionis(int argc, VALUE *argv, VALUE self)
{
	if (argc != 13)
		rb_raise(rb_eArgError, "wrong number of arguments (13 required: tjdut, helflag, mag, azi_obj, alt_obj, azi_sun, azi_moon, alt_moon, lon, lat, height, datm_array, dobs_array)");

	char serr[AS_MAXCH];
	double dgeo[3];
	dgeo[0] = NUM2DBL(argv[8]);  // lon
	dgeo[1] = NUM2DBL(argv[9]);  // lat
	dgeo[2] = NUM2DBL(argv[10]); // height

	VALUE datm_arr = argv[11];
	if (TYPE(datm_arr) != T_ARRAY || RARRAY_LEN(datm_arr) < 4)
		rb_raise(rb_eArgError, "datm must be array of 4 values [pressure, temp, humidity, extinction_coeff]");
	double datm[4];
	for (int i = 0; i < 4; i++)
		datm[i] = NUM2DBL(rb_ary_entry(datm_arr, i));

	VALUE dobs_arr = argv[12];
	if (TYPE(dobs_arr) != T_ARRAY || RARRAY_LEN(dobs_arr) < 6)
		rb_raise(rb_eArgError, "dobs must be array of 6 values [age, snellen_left, snellen_right, telescope_mag, telescope_diam, binoc_factor]");
	double dobs[6];
	for (int i = 0; i < 6; i++)
		dobs[i] = NUM2DBL(rb_ary_entry(dobs_arr, i));

	double dret[20];
	if (swe_topo_arcus_visionis(NUM2DBL(argv[0]), dgeo, datm, dobs, NUM2INT(argv[1]),
			NUM2DBL(argv[2]), NUM2DBL(argv[3]), NUM2DBL(argv[4]), NUM2DBL(argv[5]), NUM2DBL(argv[6]), NUM2DBL(argv[7]), dret, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, rb_float_new(dret[0]));
	return output;
}

.swe_utc_to_jd(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 160

static VALUE t_swe_utc_to_jd(int argc, VALUE *argv, VALUE self)
{
	if (argc < 6 || argc > 7)
		rb_raise(rb_eArgError, "wrong number of arguments (6 or 7)");

	int32 gregflag = (argc == 7) ? NUM2INT(argv[6]) : SE_GREG_CAL;
	double dret[2];
	char serr[AS_MAXCH];

	int32 result = swe_utc_to_jd(
		NUM2INT(argv[0]), NUM2INT(argv[1]), NUM2INT(argv[2]),
		NUM2INT(argv[3]), NUM2INT(argv[4]), NUM2DBL(argv[5]),
		gregflag, dret, serr);

	if (result < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	rb_ary_push(output, rb_float_new(dret[0])); // JD ET
	rb_ary_push(output, rb_float_new(dret[1])); // JD UT
	return output;
}

.swe_version ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 66

static VALUE t_swe_version(VALUE self)
{
	char version[AS_MAXCH];
	swe_version(version);
	return rb_str_new_cstr(version);
}

.swe_vis_limit_mag(*args) ⇒ Object 



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# File 'ext/swisseph/swisseph.c', line 1357

static VALUE t_swe_vis_limit_mag(int argc, VALUE *argv, VALUE self)
{
	if (argc != 8)
		rb_raise(rb_eArgError, "wrong number of arguments (8 required: tjd_ut, object_name, helflag, lon, lat, height, datm_array, dobs_array)");

	char serr[AS_MAXCH];
	double geopos[3];
	geopos[0] = NUM2DBL(argv[3]); // lon
	geopos[1] = NUM2DBL(argv[4]); // lat
	geopos[2] = NUM2DBL(argv[5]); // height

	// datm: atmospheric data array (4 doubles)
	VALUE datm_arr = argv[6];
	if (TYPE(datm_arr) != T_ARRAY || RARRAY_LEN(datm_arr) < 4)
		rb_raise(rb_eArgError, "datm must be array of 4 values [pressure, temp, humidity, extinction_coeff]");
	double datm[4];
	for (int i = 0; i < 4; i++)
		datm[i] = NUM2DBL(rb_ary_entry(datm_arr, i));

	// dobs: observer data array (6 doubles)
	VALUE dobs_arr = argv[7];
	if (TYPE(dobs_arr) != T_ARRAY || RARRAY_LEN(dobs_arr) < 6)
		rb_raise(rb_eArgError, "dobs must be array of 6 values [age, snellen_left, snellen_right, telescope_mag, telescope_diam, binoc_factor]");
	double dobs[6];
	for (int i = 0; i < 6; i++)
		dobs[i] = NUM2DBL(rb_ary_entry(dobs_arr, i));

	double dret[50];
	char *object_name = StringValuePtr(argv[1]);

	if (swe_vis_limit_mag(NUM2DBL(argv[0]), geopos, datm, dobs, object_name, NUM2INT(argv[2]), dret, serr) < 0)
		rb_raise(rb_eRuntimeError, "%s", serr);

	VALUE output = rb_ary_new();
	for (int i = 0; i < 8; i++)
		rb_ary_push(output, rb_float_new(dret[i]));
	return output;
}