/* transform local time to UTC or UTC to local time
*
* input
* iyear ... dsec date and time
* d_timezone timezone offset
* output
* iyear_out ... dsec_out
*
* For time zones east of Greenwich, d_timezone is positive.
* For time zones west of Greenwich, d_timezone is negative.
*
* For conversion from local time to utc, use +d_timezone.
* For conversion from utc to local time, use -d_timezone.
*/
void FAR PASCAL_CONV swe_utc_time_zone(
int32 iyear, int32 imonth, int32 iday,
int32 ihour, int32 imin, double dsec,
double d_timezone,
int32 *iyear_out, int32 *imonth_out, int32 *iday_out,
int32 *ihour_out, int32 *imin_out, double *dsec_out
)
{
double tjd, d;
AS_BOOL have_leapsec = FALSE;
double dhour;
if (dsec >= 60.0) {
have_leapsec = TRUE;
dsec -= 1.0;
}
dhour = ((double) ihour) + ((double) imin) / 60.0 + dsec / 3600.0;
tjd = swe_julday(iyear, imonth, iday, 0, SE_GREG_CAL);
dhour -= d_timezone;
if (dhour < 0.0) {
tjd -= 1.0;
dhour += 24.0;
}
if (dhour >= 24.0) {
tjd += 1.0;
dhour -= 24.0;
}
swe_revjul(tjd + 0.001, SE_GREG_CAL, iyear_out, imonth_out, iday_out, &d);
*ihour_out = (int) dhour;
d = (dhour - (double) *ihour_out) * 60;
*imin_out = (int) d;
*dsec_out = (d - (double) *imin_out) * 60;
if (have_leapsec)
*dsec_out += 1.0;
}
int main() {
char *sp, sdate[AS_MAXCH], snam[40], serr[AS_MAXCH];
int jday = 1, jmon = 1, jyear = 2000;
double jut = 0.0;
double tjd, te, x2[6];
int32 iflag, iflgret;
int p;
iflag = SEFLG_SPEED;
while (TRUE) {
printf("\nDate (d.m.y) ?");
gets(sdate);
/*
* stop if a period . is entered
*/
if (*sdate == '.')
return OK;
if (sscanf (sdate, "%d%*c%d%*c%d", &jday,&jmon,&jyear) < 1)
exit(1);
/*
* we have day, month and year and convert to Julian day number
*/
tjd = swe_julday(jyear,jmon,jday,jut,SE_GREG_CAL);
/*
* compute Ephemeris time from Universal time by adding delta_t
*/
te = tjd + swe_deltat(tjd);
printf("date: %02d.%02d.%d at 0:00 Universal time\n", jday, jmon, jyear);
printf("planet \tlongitude\tlatitude\tdistance\tspeed long.\n");
/*
* a loop over all planets
*/
for (p = SE_SUN; p <= SE_CHIRON; p++) {
if (p == SE_EARTH)
continue;
/*
* do the coordinate calculation for this planet p
*/
iflgret = swe_calc(te, p, iflag, x2, serr);
/*
* if there is a problem, a negative value is returned and an
* errpr message is in serr.
*/
if (iflgret < 0)
printf("error: %s\n", serr);
else if (iflgret != iflag)
printf("warning: iflgret != iflag. %s\n", serr);
/*
* get the name of the planet p
*/
swe_get_planet_name(p, snam);
/*
* print the coordinates
*/
printf("%10s\t%11.7f\t%10.7f\t%10.7f\t%10.7f\n",
snam, x2[0], x2[1], x2[2], x2[3]);
}
}
return OK;
}
static PyObject* astrology_swe_julday(PyObject *self, PyObject *args)
{
int y, m, d;
double hour;
int gregflag;
if (!PyArg_ParseTuple(args, "iiidi", &y, &m, &d, &hour, &gregflag))
return NULL;
double ret = swe_julday(y, m, d, hour, gregflag);
return Py_BuildValue("d", ret);
}
int FAR PASCAL_CONV swe_date_conversion(int y,
int m,
int d, /* day, month, year */
double uttime, /* UT in hours (decimal) */
char c, /* calendar g[regorian]|j[ulian] */
double *tjd)
{
int rday, rmon, ryear;
double rut, jd;
int gregflag = SE_JUL_CAL;
if (c == 'g')
gregflag = SE_GREG_CAL;
rut = uttime; /* hours UT */
jd = swe_julday(y, m, d, rut, gregflag);
swe_revjul(jd, gregflag, &ryear, &rmon, &rday, &rut);
*tjd = jd;
if (rmon == m && rday == d && ryear == y) {
return OK;
} else {
return ERR;
}
} /* end date_conversion */
//--------------------------------------------------------------------
// Eine Datenzeile einlesen
// Julianisches Datum in ET und UT berechnen
// Geographische Länge und Breite einlesen
//--------------------------------------------------------------------
int get_data( char *line, struct _hordat *hordat ) {
char name[255],*s, *t, gregflag, corrflag, lonflag, latflag;
double ut,ct;
int i=0,n=0,ut_sec,
day,month,year,hrs,min,sec,hc,mc,sc,
lon_d, lon_m, lat_d, lat_m ;
// Beispielformat:
// 24.3.1920;G;14:15:0;1E0:0;7E34;47N32;Rene Acht
i=sscanf(line, "%d.%d.%d;%c;%d:%d:%d;%d%c%d:%d;%d%c%d;%d%c%d;",
&day, &month, &year, &gregflag,
&hrs, &min, &sec,
&hc, &corrflag, &mc, &sc,
&lon_d, &lonflag, &lon_m,
&lat_d, &latflag, &lat_m);
// Korrektur Kalenderzeit -> Weltzeit in h merken
hordat->ctime = ((corrflag == 'E') ? -1 : 1) *
(sc + 60*(mc + 60*hc)) / .36e4;
// Weltzeit (in h) ermitteln...
ut = ( sec + 60*(min + 60*hrs) )/.36e4 + hordat->ctime;
// ... und Julianisches Datum ermitteln
hordat->jd_ut = swe_julday( year, month, day, ut,
(gregflag == 'J') ? 0 : 1);
hordat->jd = hordat->jd_ut + swe_deltat( hordat->jd_ut );
// Länge
hordat->lon = ( lon_m + 60 * lon_d ) *
( (lonflag == 'E') ? 1 : -1 ) / .6e2;
// Breite
hordat->lat = ( lat_m + 60 * lat_d ) *
( (latflag == 'N') ? 1 : -1 ) / .6e2;
}
/*
* Input: tjd_et Julian day number, terrestrial time (ephemeris time).
* gregfalg Calendar flag
* Output: UTC year, month, day, hour, minute, second (decimal).
*
* - Before 1 jan 1972 UTC, output UT1.
* Note: UTC was introduced in 1961. From 1961 - 1971, the length of the
* UTC second was regularly changed, so that UTC remained very close to UT1.
* - From 1972 on, output is UTC.
* - If delta_t - nleap - 32.184 > 1, the output is UT1.
* Note: Like this we avoid errors greater than 1 second in case that
* the leap seconds table (or the Swiss Ephemeris version) has not been
* updated for a long time.
*/
void FAR PASCAL_CONV swe_jdet_to_utc(double tjd_et, int32 gregflag, int32 *iyear, int32 *imonth, int32 *iday, int32 *ihour, int32 *imin, double *dsec)
{
int i;
int second_60 = 0;
int iyear2, imonth2, iday2, nleap, ndat, tabsiz_nleap;
double d, tjd, tjd_et_1972, tjd_ut, dret[10];
/*
* if tjd_et is before 1 jan 1972 UTC, return UT1
*/
tjd_et_1972 = J1972 + (32.184 + NLEAP_INIT) / 86400.0;
d = swe_deltat(tjd_et);
tjd_ut = tjd_et - swe_deltat(tjd_et - d);
if (tjd_et < tjd_et_1972) {
swe_revjul(tjd_ut, gregflag, iyear, imonth, iday, &d);
*ihour = (int32) d;
d -= (double) *ihour;
d *= 60;
*imin = (int32) d;
*dsec = (d - (double) *imin) * 60.0;
return;
}
/*
* minimum number of leap seconds since 1972; we may be missing one leap
* second
*/
tabsiz_nleap = init_leapsec();
swe_revjul(tjd_ut-1, SE_GREG_CAL, &iyear2, &imonth2, &iday2, &d);
ndat = iyear2 * 10000 + imonth2 * 100 + iday2;
nleap = 0;
for (i = 0; i < tabsiz_nleap; i++) {
if (ndat <= leap_seconds[i])
break;
nleap++;
}
/* date of potentially missing leapsecond */
if (nleap < tabsiz_nleap) {
i = leap_seconds[nleap];
iyear2 = i / 10000;
imonth2 = (i % 10000) / 100;;
iday2 = i % 100;
tjd = swe_julday(iyear2, imonth2, iday2, 0, SE_GREG_CAL);
swe_revjul(tjd+1, SE_GREG_CAL, &iyear2, &imonth2, &iday2, &d);
swe_utc_to_jd(iyear2,imonth2,iday2, 0, 0, 0, SE_GREG_CAL, dret, NULL);
d = tjd_et - dret[0];
if (d >= 0) {
nleap++;
} else if (d < 0 && d > -1.0/86400.0) {
second_60 = 1;
}
}
/*
* UTC, still unsure about one leap second
*/
tjd = J1972 + (tjd_et - tjd_et_1972) - ((double) nleap + second_60) / 86400.0;
swe_revjul(tjd, SE_GREG_CAL, iyear, imonth, iday, &d);
*ihour = (int32) d;
d -= (double) *ihour;
d *= 60;
*imin = (int32) d;
*dsec = (d - (double) *imin) * 60.0 + second_60;
/*
* For input dates > today:
* If leap seconds table is not up to date, we'd better interpret the
* input time as UT1, not as UTC. How do we find out?
* Check, if delta_t - nleap - 32.184 > 0.9
*/
d = swe_deltat(tjd_et);
d = swe_deltat(tjd_et - d);
if (d * 86400.0 - (double) (nleap + NLEAP_INIT) - 32.184 >= 1.0) {
swe_revjul(tjd_et - d, SE_GREG_CAL, iyear, imonth, iday, &d);
*ihour = (int32) d;
d -= (double) *ihour;
d *= 60;
*imin = (int32) d;
*dsec = (d - (double) *imin) * 60.0;
}
if (gregflag == SE_JUL_CAL) {
tjd = swe_julday(*iyear, *imonth, *iday, 0, SE_GREG_CAL);
swe_revjul(tjd, gregflag, iyear, imonth, iday, &d);
}
}
/*
* Input: Clock time UTC, year, month, day, hour, minute, second (decimal).
* gregflag Calendar flag
* serr error string
* Output: An array of doubles:
* dret[0] = Julian day number TT (ET)
* dret[1] = Julian day number UT1
*
* Function returns OK or Error.
*
* - Before 1972, swe_utc_to_jd() treats its input time as UT1.
* Note: UTC was introduced in 1961. From 1961 - 1971, the length of the
* UTC second was regularly changed, so that UTC remained very close to UT1.
* - From 1972 on, input time is treated as UTC.
* - If delta_t - nleap - 32.184 > 1, the input time is treated as UT1.
* Note: Like this we avoid errors greater than 1 second in case that
* the leap seconds table (or the Swiss Ephemeris version) is not updated
* for a long time.
*/
int32 FAR PASCAL_CONV swe_utc_to_jd(int32 iyear, int32 imonth, int32 iday, int32 ihour, int32 imin, double dsec, int32 gregflag, double *dret, char *serr)
{
double tjd_ut1, tjd_et, tjd_et_1972, dhour, d;
int iyear2, imonth2, iday2;
int i, j, ndat, nleap, tabsiz_nleap;
/*
* error handling: invalid iyear etc.
*/
tjd_ut1 = swe_julday(iyear, imonth, iday, 0, gregflag);
swe_revjul(tjd_ut1, gregflag, &iyear2, &imonth2, &iday2, &d);
if (iyear != iyear2 || imonth != imonth2 || iday != iday2) {
if (serr != NULL)
sprintf(serr, "invalid date: year = %d, month = %d, day = %d", iyear, imonth, iday);
return ERR;
}
if (ihour < 0 || ihour > 23
|| imin < 0 || imin > 59
|| dsec < 0 || dsec >= 61
|| (dsec >= 60 && (imin < 59 || ihour < 23 || tjd_ut1 < J1972))) {
if (serr != NULL)
sprintf(serr, "invalid time: %d:%d:%.2f", ihour, imin, dsec);
return ERR;
}
dhour = (double) ihour + ((double) imin) / 60.0 + dsec / 3600.0;
/*
* before 1972, we treat input date as UT1
*/
if (tjd_ut1 < J1972) {
dret[1] = swe_julday(iyear, imonth, iday, dhour, gregflag);
dret[0] = dret[1] + swe_deltat(dret[1]);
return OK;
}
/*
* if gregflag = Julian calendar, convert to gregorian calendar
*/
if (gregflag == SE_JUL_CAL) {
gregflag = SE_GREG_CAL;
swe_revjul(tjd_ut1, gregflag, &iyear, &imonth, &iday, &d);
}
/*
* number of leap seconds since 1972:
*/
tabsiz_nleap = init_leapsec();
nleap = NLEAP_INIT; /* initial difference between UTC and TAI in 1972 */
ndat = iyear * 10000 + imonth * 100 + iday;
for (i = 0; i < tabsiz_nleap; i++) {
if (ndat <= leap_seconds[i])
break;
nleap++;
}
/*
* For input dates > today:
* If leap seconds table is not up to date, we'd better interpret the
* input time as UT1, not as UTC. How do we find out?
* Check, if delta_t - nleap - 32.184 > 0.9
*/
d = swe_deltat(tjd_ut1) * 86400.0;
if (d - (double) nleap - 32.184 >= 1.0) {
dret[1] = tjd_ut1 + dhour / 24.0;
dret[0] = dret[1] + swe_deltat(dret[1]);
return OK;
}
/*
* if input second is 60: is it a valid leap second ?
*/
if (dsec >= 60) {
j = 0;
for (i = 0; i < tabsiz_nleap; i++) {
if (ndat == leap_seconds[i]) {
j = 1;
break;
}
}
if (j != 1) {
if (serr != NULL)
sprintf(serr, "invalid time (no leap second!): %d:%d:%.2f", ihour, imin, dsec);
return ERR;
}
}
/*
* convert UTC to ET and UT1
*/
/* the number of days between input date and 1 jan 1972: */
d = tjd_ut1 - J1972;
/* SI time since 1972, ignoring leap seconds: */
d += (double) ihour / 24.0 + (double) imin / 1440.0 + dsec / 86400.0;
/* ET (TT) */
tjd_et_1972 = J1972 + (32.184 + NLEAP_INIT) / 86400.0;
tjd_et = tjd_et_1972 + d + ((double) (nleap - NLEAP_INIT)) / 86400.0;
d = swe_deltat(tjd_et);
tjd_ut1 = tjd_et - swe_deltat(tjd_et - d);
dret[0] = tjd_et;
dret[1] = tjd_ut1;
return OK;
}
static int swisseph(char *buf)
{
char serr[AS_MAXCH*2], serr_save[AS_MAXCH], serr_warn[AS_MAXCH];
char s[AS_MAXCH];
char s1[AS_MAXCH], s2[AS_MAXCH];
char star[AS_MAXCH];
char *sp, *sp2;
char se_pname[AS_MAXCH];
char *spnam, *spnam2 = "";
char *fmt = "PZBRS";
char *plsel, *psp;
char *gap = " ";
double jut = 0.0, y_frac;
int i, j;
double hpos;
int jday, jmon, jyear, jhour, jmin, jsec;
int ipl, ipldiff = SE_SUN;
double x[6], xequ[6], xcart[6], xcartq[6];
double cusp[12+1]; /* cusp[0] + 12 houses */
double ascmc[10]; /* asc, mc, vertex ...*/
double ar, sinp;
double a, sidt, armc, lon, lat;
double eps_true, eps_mean, nutl, nuto;
char ephepath[AS_MAXCH];
char fname[AS_MAXCH];
char splan[100], sast[AS_MAXCH];
int nast, iast;
long astno[100];
long iflag = 0, iflag2; /* external flag: helio, geo... */
long iflgret;
long whicheph = SEFLG_SWIEPH;
AS_BOOL universal_time = FALSE;
AS_BOOL calc_house_pos = FALSE;
short gregflag;
AS_BOOL diff_mode = FALSE;
int round_flag = 0;
double tjd_ut = 2415020.5;
double tjd_et, t2;
double delt;
char bc[20];
char *jul;
int hsys = (int) *pd.hsysname;
*serr = *serr_save = *serr_warn = '\0';
strcpy(ephepath, SE_EPHE_PATH);
if (strcmp(pd.ephe, ephe[1]) == 0) {
whicheph = SEFLG_JPLEPH;
strcpy(fname, SE_FNAME_DE406);
} else if (strcmp(pd.ephe, ephe[0]) == 0)
whicheph = SEFLG_SWIEPH;
else
whicheph = SEFLG_MOSEPH;
if (strcmp(pd.etut, "UT") == 0)
universal_time = TRUE;
if (strcmp(pd.plansel, plansel[0]) == 0) {
plsel = PLSEL_D;
} else if (strcmp(pd.plansel, plansel[1]) == 0) {
plsel = PLSEL_P;
} else if (strcmp(pd.plansel, plansel[2]) == 0) {
plsel = PLSEL_A;
}
if (strcmp(pd.ctr, ctr[0]) == 0)
calc_house_pos = TRUE;
else if (strcmp(pd.ctr, ctr[1]) == 0) {
iflag |= SEFLG_TOPOCTR;
calc_house_pos = TRUE;
} else if (strcmp(pd.ctr, ctr[2]) == 0) {
iflag |= SEFLG_HELCTR;
} else if (strcmp(pd.ctr, ctr[3]) == 0) {
iflag |= SEFLG_BARYCTR;
} else if (strcmp(pd.ctr, ctr[4]) == 0) {
iflag |= SEFLG_SIDEREAL;
swe_set_sid_mode(SE_SIDM_FAGAN_BRADLEY, 0, 0);
} else if (strcmp(pd.ctr, ctr[5]) == 0) {
iflag |= SEFLG_SIDEREAL;
swe_set_sid_mode(SE_SIDM_LAHIRI, 0, 0);
#if 0
} else {
iflag &= ~(SEFLG_HELCTR | SEFLG_BARYCTR | SEFLG_TOPOCTR);
#endif
}
lon = pd.lon_deg + pd.lon_min / 60.0 + pd.lon_sec / 3600.0;
if (*pd.lon_e_w == 'W')
lon = -lon;
lat = pd.lat_deg + pd.lat_min / 60.0 + pd.lat_sec / 3600.0;
if (*pd.lat_n_s == 'S')
lat = -lat;
sprintf(s, "Planet Positions from %s \n\n", pd.ephe);
do_print(buf, s);
if (whicheph & SEFLG_JPLEPH)
swe_set_jpl_file(fname);
iflag = (iflag & ~SEFLG_EPHMASK) | whicheph;
iflag |= SEFLG_SPEED;
#if 0
if (pd.helio) iflag |= SEFLG_HELCTR;
#endif
if ((long) pd.year * 10000L + (long) pd.mon * 100L + (long) pd.mday < 15821015L)
gregflag = FALSE;
else
gregflag = TRUE;
jday = pd.mday;
jmon = pd.mon;
jyear = pd.year;
jhour = pd.hour;
jmin = pd.min;
jsec = pd.sec;
jut = jhour + jmin / 60.0 + jsec / 3600.0;
tjd_ut = swe_julday(jyear,jmon,jday,jut,gregflag);
swe_revjul(tjd_ut, gregflag, &jyear, &jmon, &jday, &jut);
jut += 0.5 / 3600;
jhour = (int) jut;
jmin = (int) fmod(jut * 60, 60);
jsec = (int) fmod(jut * 3600, 60);
*bc = '\0';
if (pd.year <= 0)
sprintf(bc, "(%d B.C.)", 1 - jyear);
if (jyear * 10000L + jmon * 100L + jday <= 15821004)
jul = "jul.";
else
jul = "";
sprintf(s, "%d.%d.%d %s %s %#02d:%#02d:%#02d %s\n",
jday, jmon, jyear, bc, jul,
jhour, jmin, jsec, pd.etut);
do_print(buf, s);
jut = jhour + jmin / 60.0 + jsec / 3600.0;
if (universal_time) {
delt = swe_deltat(tjd_ut);
sprintf(s, " delta t: %f sec", delt * 86400.0);
do_print(buf, s);
tjd_et = tjd_ut + delt;
} else
tjd_et = tjd_ut;
sprintf(s, " jd (ET) = %f\n", tjd_et);
do_print(buf, s);
iflgret = swe_calc(tjd_et, SE_ECL_NUT, iflag, x, serr);
eps_true = x[0];
eps_mean = x[1];
strcpy(s1, dms(eps_true, round_flag));
strcpy(s2, dms(eps_mean, round_flag));
sprintf(s, "\n%-15s %s%s%s (true, mean)", "Ecl. obl.", s1, gap, s2);
do_print(buf, s);
nutl = x[2];
nuto = x[3];
strcpy(s1, dms(nutl, round_flag));
strcpy(s2, dms(nuto, round_flag));
sprintf(s, "\n%-15s %s%s%s (dpsi, deps)", "Nutation", s1, gap, s2);
do_print(buf, s);
do_print(buf, "\n\n");
do_print(buf, " ecl. long. ecl. lat. ");
do_print(buf, " dist. speed");
if (calc_house_pos)
do_print(buf, " house");
do_print(buf, "\n");
if (iflag & SEFLG_TOPOCTR)
swe_set_topo(lon, lat, pd.alt);
sidt = swe_sidtime(tjd_ut) + lon / 15;
if (sidt >= 24)
sidt -= 24;
if (sidt < 0)
sidt += 24;
armc = sidt * 15;
/* additional asteroids */
strcpy(splan, plsel);
if (strcmp(plsel,PLSEL_P) == 0) {
char *cpos[40];
strcpy(sast, pd.sast);
j = cut_str_any(sast, ",;. \t", cpos, 40);
for (i = 0, nast = 0; i < j; i++) {
if ((astno[nast] = atol(cpos[i])) > 0) {
nast++;
strcat(splan, "+");
}
}
}
for (psp = splan, iast = 0; *psp != '\0'; psp++) {
if (*psp == '+') {
ipl = SE_AST_OFFSET + (int) astno[iast];
iast++;
} else
ipl = letter_to_ipl(*psp);
if (iflag & SEFLG_HELCTR) {
if (ipl == SE_SUN
|| ipl == SE_MEAN_NODE || ipl == SE_TRUE_NODE
|| ipl == SE_MEAN_APOG || ipl == SE_OSCU_APOG)
continue;
} else if (iflag & SEFLG_BARYCTR) {
if (ipl == SE_MEAN_NODE || ipl == SE_TRUE_NODE
|| ipl == SE_MEAN_APOG || ipl == SE_OSCU_APOG)
continue;
} else /* geocentric */
if (ipl == SE_EARTH)
continue;
/* ecliptic position */
if (ipl == SE_FIXSTAR) {
iflgret = swe_fixstar(star, tjd_et, iflag, x, serr);
strcpy(se_pname, star);
} else {
iflgret = swe_calc(tjd_et, ipl, iflag, x, serr);
swe_get_planet_name(ipl, se_pname);
if (ipl > SE_AST_OFFSET) {
sprintf(s, "#%d", (int) astno[iast-1]);
strcat(se_pname, " ");
strcpy(se_pname + 11 - strlen(s), s);
}
}
if (iflgret >= 0) {
if (calc_house_pos) {
hpos = swe_house_pos(armc, lat, eps_true, hsys, x, serr);
if (hpos == 0)
iflgret = ERR;
}
}
if (iflgret < 0) {
if (*serr != '\0' && strcmp(serr, serr_save) != 0) {
strcpy (serr_save, serr);
do_print(buf, "error: ");
do_print(buf, serr);
do_print(buf, "\n");
}
} else if (*serr != '\0' && *serr_warn == '\0')
strcpy(serr_warn, serr);
/* equator position */
if (strpbrk(fmt, "aADdQ") != NULL) {
iflag2 = iflag | SEFLG_EQUATORIAL;
if (ipl == SE_FIXSTAR)
iflgret = swe_fixstar(star, tjd_et, iflag2, xequ, serr);
else
iflgret = swe_calc(tjd_et, ipl, iflag2, xequ, serr);
}
/* ecliptic cartesian position */
if (strpbrk(fmt, "XU") != NULL) {
iflag2 = iflag | SEFLG_XYZ;
if (ipl == SE_FIXSTAR)
iflgret = swe_fixstar(star, tjd_et, iflag2, xcart, serr);
else
iflgret = swe_calc(tjd_et, ipl, iflag2, xcart, serr);
}
/* equator cartesian position */
if (strpbrk(fmt, "xu") != NULL) {
iflag2 = iflag | SEFLG_XYZ | SEFLG_EQUATORIAL;
if (ipl == SE_FIXSTAR)
iflgret = swe_fixstar(star, tjd_et, iflag2, xcartq, serr);
else
iflgret = swe_calc(tjd_et, ipl, iflag2, xcartq, serr);
}
spnam = se_pname;
/*
* The string fmt contains a sequence of format specifiers;
* each character in fmt creates a column, the columns are
* sparated by the gap string.
*/
for (sp = fmt; *sp != '\0'; sp++) {
if (sp != fmt)
do_print(buf, gap);
switch(*sp) {
case 'y':
sprintf(s, "%d", jyear);
do_print(buf, s);
break;
case 'Y':
jut = 0;
t2 = swe_julday(jyear,1,1,jut,gregflag);
y_frac = (tjd_ut - t2) / 365.0;
sprintf(s, "%.2lf", jyear + y_frac);
do_print(buf, s);
break;
case 'p':
if (diff_mode)
sprintf(s, "%d-%d", ipl, ipldiff);
else
sprintf(s, "%d", ipl);
do_print(buf, s);
break;
case 'P':
if (diff_mode)
sprintf(s, "%.3s-%.3s", spnam, spnam2);
else
sprintf(s, "%-11s", spnam);
do_print(buf, s);
break;
case 'J':
case 'j':
sprintf(s, "%.2f", tjd_ut);
do_print(buf, s);
break;
case 'T':
sprintf(s, "%02d.%02d.%d", jday, jmon, jyear);
do_print(buf, s);
break;
case 't':
sprintf(s, "%02d%02d%02d", jyear % 100, jmon, jday);
do_print(buf, s);
break;
case 'L':
do_print(buf, dms(x[0], round_flag));
break;
case 'l':
sprintf(s, "%# 11.7f", x[0]);
do_print(buf, s);
break;
case 'Z':
do_print(buf, dms(x[0], round_flag|BIT_ZODIAC));
break;
case 'S':
case 's':
if (*(sp+1) == 'S' || *(sp+1) == 's' || strpbrk(fmt, "XUxu") != NULL) {
for (sp2 = fmt; *sp2 != '\0'; sp2++) {
if (sp2 != fmt)
do_print(buf, gap);
switch(*sp2) {
case 'L': /* speed! */
case 'Z': /* speed! */
do_print(buf, dms(x[3], round_flag));
break;
case 'l': /* speed! */
sprintf(s, "%11.7f", x[3]);
do_print(buf, s);
break;
case 'B': /* speed! */
do_print(buf, dms(x[4], round_flag));
break;
case 'b': /* speed! */
sprintf(s, "%11.7f", x[4]);
do_print(buf, s);
break;
case 'A': /* speed! */
do_print(buf, dms(xequ[3]/15, round_flag|SEFLG_EQUATORIAL));
break;
case 'a': /* speed! */
sprintf(s, "%11.7f", xequ[3]);
do_print(buf, s);
break;
case 'D': /* speed! */
do_print(buf, dms(xequ[4], round_flag));
break;
case 'd': /* speed! */
sprintf(s, "%11.7f", xequ[4]);
do_print(buf, s);
break;
case 'R': /* speed! */
case 'r': /* speed! */
sprintf(s, "%# 14.9f", x[5]);
do_print(buf, s);
break;
case 'U': /* speed! */
case 'X': /* speed! */
if (*sp =='U')
ar = sqrt(square_sum(xcart));
else
ar = 1;
sprintf(s, "%# 14.9f%s", xcart[3]/ar, gap);
do_print(buf, s);
sprintf(s, "%# 14.9f%s", xcart[4]/ar, gap);
do_print(buf, s);
sprintf(s, "%# 14.9f", xcart[5]/ar);
do_print(buf, s);
break;
case 'u': /* speed! */
case 'x': /* speed! */
if (*sp =='u')
ar = sqrt(square_sum(xcartq));
else
ar = 1;
sprintf(s, "%# 14.9f%s", xcartq[3]/ar, gap);
do_print(buf, s);
sprintf(s, "%# 14.9f%s", xcartq[4]/ar, gap);
do_print(buf, s);
sprintf(s, "%# 14.9f", xcartq[5]/ar);
do_print(buf, s);
break;
default:
break;
}
}
if (*(sp+1) == 'S' || *(sp+1) == 's')
sp++;
} else {
do_print(buf, dms(x[3], round_flag));
}
break;
case 'B':
do_print(buf, dms(x[1], round_flag));
break;
case 'b':
sprintf(s, "%# 11.7f", x[1]);
do_print(buf, s);
break;
case 'A': /* rectascensio */
do_print(buf, dms(xequ[0]/15, round_flag|SEFLG_EQUATORIAL));
break;
case 'a': /* rectascensio */
sprintf(s, "%# 11.7f", xequ[0]);
do_print(buf, s);
break;
case 'D': /* declination */
do_print(buf, dms(xequ[1], round_flag));
break;
case 'd': /* declination */
sprintf(s, "%# 11.7f", xequ[1]);
do_print(buf, s);
break;
case 'R':
sprintf(s, "%# 14.9f", x[2]);
do_print(buf, s);
break;
case 'r':
if ( ipl == SE_MOON ) { /* for moon print parallax */
sinp = 8.794 / x[2]; /* in seconds of arc */
ar = sinp * (1 + sinp * sinp * 3.917402e-12);
/* the factor is 1 / (3600^2 * (180/pi)^2 * 6) */
sprintf(s, "%# 13.5f\"", ar);
} else {
sprintf(s, "%# 14.9f", x[2]);
}
do_print(buf, s);
break;
case 'U':
case 'X':
if (*sp =='U')
ar = sqrt(square_sum(xcart));
else
ar = 1;
sprintf(s, "%# 14.9f%s", xcart[0]/ar, gap);
do_print(buf, s);
sprintf(s, "%# 14.9f%s", xcart[1]/ar, gap);
do_print(buf, s);
sprintf(s, "%# 14.9f", xcart[2]/ar);
do_print(buf, s);
break;
case 'u':
case 'x':
if (*sp =='u')
ar = sqrt(square_sum(xcartq));
else
ar = 1;
sprintf(s, "%# 14.9f%s", xcartq[0]/ar, gap);
do_print(buf, s);
sprintf(s, "%# 14.9f%s", xcartq[1]/ar, gap);
do_print(buf, s);
sprintf(s, "%# 14.9f", xcartq[2]/ar);
do_print(buf, s);
break;
case 'Q':
sprintf(s, "%-15s", spnam);
do_print(buf, s);
do_print(buf, dms(x[0], round_flag));
do_print(buf, dms(x[1], round_flag));
sprintf(s, " %# 14.9f", x[2]);
do_print(buf, s);
do_print(buf, dms(x[3], round_flag));
do_print(buf, dms(x[4], round_flag));
sprintf(s, " %# 14.9f\n", x[5]);
do_print(buf, s);
sprintf(s, " %s", dms(xequ[0], round_flag));
do_print(buf, s);
do_print(buf, dms(xequ[1], round_flag));
sprintf(s, " %s", dms(xequ[3], round_flag));
do_print(buf, s);
do_print(buf, dms(xequ[4], round_flag));
break;
} /* switch */
} /* for sp */
if (calc_house_pos) {
sprintf(s, " %# 6.4f", hpos);
sprintf(s, "%# 9.4f", hpos);
do_print(buf, s);
}
do_print(buf, "\n");
} /* for psp */
if (*serr_warn != '\0') {
do_print(buf, "\nwarning: ");
do_print(buf, serr_warn);
do_print(buf, "\n");
}
/* houses */
sprintf(s, "\nHouse Cusps (%s)\n\n", pd.hsysname);
do_print(buf, s);
a = sidt + 0.5 / 3600;
sprintf(s, "sid. time : %4d:%#02d:%#02d ",
(int) a, (int) fmod(a * 60, 60), (int) fmod(a * 3600, 60));
do_print(buf, s);
a = armc + 0.5 / 3600;
sprintf(s, "armc : %4d%c%#02d'%#02d\"\n",
(int) armc, ODEGREE_CHAR, (int) fmod(armc * 60, 60),
(int) fmod(a * 3600, 60));
do_print(buf, s);
sprintf(s, "geo. lat. : %4d%c%#02d'%#02d\" ",
pd.lat_deg, *pd.lat_n_s, pd.lat_min, pd.lat_sec);
do_print(buf, s);
sprintf(s, "geo. long.: %4d%c%#02d'%#02d\"\n\n",
pd.lon_deg, *pd.lon_e_w, pd.lon_min, pd.lon_sec);
do_print(buf, s);
swe_houses_ex(tjd_ut, iflag, lat, lon, hsys, cusp, ascmc);
round_flag |= BIT_ROUND_SEC;
#if FALSE
sprintf(s, "AC : %s\n", dms(ascmc[0], round_flag));
do_print(buf, s);
sprintf(s, "MC : %s\n", dms(ascmc[1], round_flag));
do_print(buf, s);
for (i = 1; i <= 12; i++) {
sprintf(s, "house %2d: %s\n", i, dms(cusp[i], round_flag));
do_print(buf, s);
}
sprintf(s, "Vertex : %s\n", dms(ascmc[3], round_flag));
do_print(buf, s);
#else
sprintf(s, "AC : %s\n", dms(ascmc[0], round_flag|BIT_ZODIAC));
do_print(buf, s);
sprintf(s, "MC : %s\n", dms(ascmc[1], round_flag|BIT_ZODIAC));
do_print(buf, s);
for (i = 1; i <= 12; i++) {
sprintf(s, "house %2d: %s\n", i, dms(cusp[i], round_flag|BIT_ZODIAC));
do_print(buf, s);
}
sprintf(s, "Vertex : %s\n", dms(ascmc[3], round_flag|BIT_ZODIAC));
do_print(buf, s);
#endif
return 0;
}
int main()
{
swe_set_ephe_path("./SWEP/");
char snam[40], serr[AS_MAXCH];
int jday = 07, jmon = 11, jyear = 1964;
int ora = 23;
int min = 3;
double jut = ora + min / 60;
static double geopos[3], armc;
/* Alessandra 44°54′48″N 8°37′12″E 95m */
top_long = 44.916; top_lat = 8.616; top_elev = 95;
/* Milano 45°27′50.98″N 9°11′25.21″E 122m */
/* top_long = 45.464; top_lat = 9.19; top_elev = 122;a */
geopos[0] = top_long;
geopos[1] = top_lat;
geopos[2] = top_elev;
swe_set_topo(top_long, top_lat, top_elev);
double tjd, te, x2[6];
int32 iflag, iflgret;
int p;
iflag = SEFLG_SPEED;
/*
* we have day, month and year and convert to Julian day number
*/
tjd = swe_julday(jyear,jmon,jday,jut,SE_GREG_CAL);
/*
* compute Ephemeris time from Universal time by adding delta_t
*/
te = tjd + swe_deltat(tjd);
printf("date: %02d.%02d.%d at %02d:%02d Universal time\n", jday, jmon, jyear, ora, min);
printf("planet \tlongitude\tlatitude\tdistance\tspeed long.\n");
/*
* a loop over all planets
*/
for (p = SE_SUN; p <= SE_SATURN; p++) {
if (p == SE_EARTH) continue;
/*
* do the coordinate calculation for this planet p
*/
iflgret = swe_calc(te, p, iflag, x2, serr);
/*
* if there is a problem, a negative value is returned and an
* errpr message is in serr.
*/
if (iflgret < 0)
printf("error: %s\n", serr);
else if (iflgret != iflag)
printf("warning: iflgret != iflag. %s\n", serr);
/*
* get the name of the planet p
*/
swe_get_planet_name(p, snam);
/*
* print the coordinates
*/
printf("%10s\t%11.7f\t%10.7f\t%10.7f\t%10.7f\n",
snam, x2[0], x2[1], x2[2], x2[3]);
}
/* iflag = SEFLG_SWIEPH | SEFLG_SPEED | SEFLG_EQUATORIAL; */
iflag = SEFLG_SPEED | SEFLG_EQUATORIAL;
printf("planet \tasc retta \tdeclinazione\n");
/*
* a loop over all planets
*/
for (p = SE_SUN; p <= SE_SATURN; p++) {
if (p == SE_EARTH) continue;
/*
* do the coordinate calculation for this planet p
*/
iflgret = swe_calc(te, p, iflag, x2, serr);
/*
* if there is a problem, a negative value is returned and an
* errpr message is in serr.
*/
if (iflgret < 0)
printf("error: %s\n", serr);
else if (iflgret != iflag)
printf("warning: iflgret != iflag. %s\n", serr);
/*
* get the name of the planet p
*/
swe_get_planet_name(p, snam);
/*
* print the coordinates
*/
printf("%10s\t%11.3f\t%10.3f\n",
snam, x2[0], x2[1]);
}
return OK;
}
/*************** julday ******************
get absolute julian day number (author: Marc Pottenger)
with bug fix for year < -4711 15-aug-88
*/
double juldays(int gregflag, ADATE *adp )
{
return swe_julday(adp->year, adp->month, adp->day, adp->csec / 360000.0, gregflag);
}
double julday(int month, int day, int year, double hour, int gregflag)
{
double jd;
jd = swe_julday(year, month, day, hour, gregflag);
return jd;
}
/*
* Get the Julian day number from year, month, day, hour
* http://www.astro.com/swisseph/swephprg.htm#_Toc283735468
double swe_julday(
int year,
int month,
int day,
double hour,
int gregflag // Gregorian calendar: 1, Julian calendar: 0
);
*/
static VALUE t_swe_julday(VALUE self, VALUE year, VALUE month, VALUE day, VALUE hour)
{
double julday = swe_julday( NUM2INT(year), NUM2INT(month), NUM2INT(day), NUM2DBL(hour), SE_GREG_CAL );
return rb_float_new(julday);
}