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swetest.c
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/*
swetest.c A test program
Authors: Dieter Koch and Alois Treindl, Astrodienst Zuerich
**************************************************************/
/* Copyright (C) 1997 - 2021 Astrodienst AG, Switzerland. All rights reserved.
License conditions
------------------
This file is part of Swiss Ephemeris.
Swiss Ephemeris is distributed with NO WARRANTY OF ANY KIND. No author
or distributor accepts any responsibility for the consequences of using it,
or for whether it serves any particular purpose or works at all, unless he
or she says so in writing.
Swiss Ephemeris is made available by its authors under a dual licensing
system. The software developer, who uses any part of Swiss Ephemeris
in his or her software, must choose between one of the two license models,
which are
a) GNU Affero General Public License (AGPL)
b) Swiss Ephemeris Professional License
The choice must be made before the software developer distributes software
containing parts of Swiss Ephemeris to others, and before any public
service using the developed software is activated.
If the developer choses the AGPL software license, he or she must fulfill
the conditions of that license, which includes the obligation to place his
or her whole software project under the AGPL or a compatible license.
See https://www.gnu.org/licenses/agpl-3.0.html
If the developer choses the Swiss Ephemeris Professional license,
he must follow the instructions as found in http://www.astro.com/swisseph/
and purchase the Swiss Ephemeris Professional Edition from Astrodienst
and sign the corresponding license contract.
The License grants you the right to use, copy, modify and redistribute
Swiss Ephemeris, but only under certain conditions described in the License.
Among other things, the License requires that the copyright notices and
this notice be preserved on all copies.
Authors of the Swiss Ephemeris: Dieter Koch and Alois Treindl
The authors of Swiss Ephemeris have no control or influence over any of
the derived works, i.e. over software or services created by other
programmers which use Swiss Ephemeris functions.
The names of the authors or of the copyright holder (Astrodienst) must not
be used for promoting any software, product or service which uses or contains
the Swiss Ephemeris. This copyright notice is the ONLY place where the
names of the authors can legally appear, except in cases where they have
given special permission in writing.
The trademarks 'Swiss Ephemeris' and 'Swiss Ephemeris inside' may be used
for promoting such software, products or services.
*/
/* attention: Microsoft Compiler does not accept strings > 2048 char */
static char *infocmd0 = "\n\
Swetest computes a complete set of geocentric planetary positions,\n\
for a given date or a sequence of dates.\n\
Input can either be a date or an absolute julian day number.\n\
0:00 (midnight).\n\
With the proper options, swetest can be used to output a printed\n\
ephemeris and transfer the data into other programs like spreadsheets\n\
for graphical display.\n\
Version: \n\
\n";
static char *infocmd1 = "\n\
Command line options:\n\
help commands:\n\
-?, -h display whole info\n\
-hcmd display commands\n\
-hplan display planet numbers\n\
-hform display format characters\n\
-hdate display input date format\n\
-hexamp display examples\n\
-glp report file location of library\n\
input time formats:\n\
-bDATE begin date; e.g. -b1.1.1992 if\n\
Note: the date format is day month year (European style).\n\
-bj... begin date as an absolute Julian day number; e.g. -bj2415020.5\n\
-j... same as -bj\n\
-tHH[:MM[:SS]] input time (as Ephemeris Time)\n\
-ut input date is Universal Time (UT1)\n\
-utHH[:MM[:SS]] input time (as Universal Time)\n\
-utcHH[:MM[:SS]] input time (as Universal Time Coordinated UTC)\n\
H,M,S can have one or two digits. Their limits are unchecked.\n\
output time for eclipses, occultations, risings/settings is UT by default\n\
-lmt output date/time is LMT (with -geopos)\n\
-lat output date/time is LAT (with -geopos)\n\
object, number of steps, step with\n\
-pSEQ planet sequence to be computed.\n\
See the letter coding below.\n\
-dX differential ephemeris: print differential ephemeris between\n\
body X and each body in list given by -p\n\
example: -p2 -d0 -fJl -n366 -b1.1.1992 prints the longitude\n\
distance between SUN (planet 0) and MERCURY (planet 2)\n\
for a full year starting at 1 Jan 1992.\n\
-dhX differential ephemeris: print differential ephemeris between\n\
heliocentric body X and each body in list given by -p\n\
example: -p8 -dh8 -ftl -n36600 -b1.1.1500 -s5 prints the longitude\n\
distance between geocentric and heliocentric Neptune (planet 8)\n\
for 500 year starting at 1 Jan 1500.\n\
Using this option mostly makes sense for a single planet\n\
to find out how much its geocentric and heliocentric positions can differ\n\
over extended periods of time\n\
-DX midpoint ephemeris, works the same way as the differential\n\
mode -d described above, but outputs the midpoint position.\n\
-nN output data for N consecutive timesteps; if no -n option\n\
is given, the default is 1. If the option -n without a\n\
number is given, the default is 20.\n\
-sN timestep N days, default 1. This option is only meaningful\n\
when combined with option -n.\n\
If an 'y' is appended, the time step is in years instead of days, \n\
for example -s10y for a time step of 10 years.\n\
If an 'mo' is appended, the time step is in months instead of days, \n\
for example -s3mo for a time step of 3 months.\n\
If an 'm' is appended, the time step is in minutes instead of days, \n\
for example -s15m for a time step of 15 minutes.\n\
If an 's' is appended, the time step is in seconds instead of days, \n\
for example -s1s for a time step of 1 second.\n\
";
static char *infocmd2 = "\
output format:\n\
-fSEQ use SEQ as format sequence for the output columns;\n\
default is PLBRS.\n\
-head don\'t print the header before the planet data. This option\n\
is useful when you want to paste the output into a\n\
spreadsheet for displaying graphical ephemeris.\n\
+head header before every step (with -s..) \n\
-gPPP use PPP as gap between output columns; default is a single\n\
blank. -g followed by white space sets the\n\
gap to the TAB character; which is useful for data entry\n\
into spreadsheets.\n\
-hor list data for multiple planets 'horizontally' in same line.\n\
all columns of -fSEQ are repeated except time colums tTJyY.\n\
astrological house system:\n\
-house[long,lat,hsys] \n\
include house cusps. The longitude, latitude (degrees with\n\
DECIMAL fraction) and house system letter can be given, with\n\
commas separated, + for east and north. If none are given,\n\
Greenwich UK and Placidus is used: 0.00,51.50,p.\n\
The output lists 12 house cusps, Asc, MC, ARMC, Vertex,\n\
Equatorial Ascendant, co-Ascendant as defined by Walter Koch, \n\
co-Ascendant as defined by Michael Munkasey, and Polar Ascendant. \n\
Houses can only be computed if option -ut is given.\n\
A equal\n\
B Alcabitius\n\
C Campanus\n\
D equal / MC\n\
E equal = A\n\
F Carter poli-equatorial\n\
G 36 Gauquelin sectors\n\
H horizon / azimuth\n\
I Sunshine\n\
i Sunshine alternative\n\
K Koch\n\
L Pullen S-delta\n\
M Morinus\n\
N Whole sign, Aries = 1st house\n\
O Porphyry\n\
P Placidus\n\
Q Pullen S-ratio\n\
R Regiomontanus\n\
S Sripati\n\
T Polich/Page (\"topocentric\")\n\
U Krusinski-Pisa-Goelzer\n\
V equal Vehlow\n\
W equal, whole sign\n\
X axial rotation system/ Meridian houses\n\
Y APC houses\n\
The use of lower case letters is deprecated. They will have a\n\
different meaning in future releases of Swiss Ephemeris.\n\
-hsy[hsys] \n\
house system to be used (for house positions of planets)\n\
for long, lat, hsys, see -house\n\
The use of lower case letters is deprecated. They will have a\n\
different meaning in future releases of Swiss Ephemeris.\n\
";
static char *infocmd3 = "\
-geopos[long,lat,elev] \n\
Geographic position. Can be used for azimuth and altitude\n\
or house cusps calculations.\n\
The longitude, latitude (degrees with DECIMAL fraction)\n\
and elevation (meters) can be given, with\n\
commas separated, + for east and north. If none are given,\n\
Greenwich is used: 0,51.5,0.\n\
For topocentric planet positions please user the parameter -topo\n\
sidereal astrology:\n\
-ay.. ayanamsha, with number of method, e.g. ay0 for Fagan/Bradley\n\
-sid.. sidereal, with number of method (see below)\n\
-sidt0.. dito, but planets are projected on the ecliptic plane of the\n\
reference date of the ayanamsha (more info in general documentation\n\
www.astro.com/swisseph/swisseph.htm)\n\
-sidsp.. dito, but planets are projected on the solar system plane.\n\
(see www.astro.com/swisseph/swisseph.htm)\n\
-sidudef[jd,ay0,...] sidereal, with user defined ayanamsha; \n\
jd=julian day number in TT/ET\n\
ay0=initial value of ayanamsha, \n\
...=optional parameters, comma-sparated:\n\
'jdisut': ayanamsha reference date is UT\n\
'eclt0': project on ecliptic of reference date (like -sidt0..)\n\
'ssyplane': project on solar system plane (like -sidsp..)\n\
e.g. '-sidudef2452163.8333333,25.0,jdisut': ayanamsha is 25.0° on JD 2452163.8333333 UT\n\
number of ayanamsha method:\n\
0 for Fagan/Bradley\n\
1 for Lahiri\n\
2 for De Luce\n\
3 for Raman\n\
4 for Usha/Shashi\n\
5 for Krishnamurti\n\
6 for Djwhal Khul\n\
7 for Yukteshwar\n\
8 for J.N. Bhasin\n\
9 for Babylonian/Kugler 1\n\
10 for Babylonian/Kugler 2\n\
11 for Babylonian/Kugler 3\n\
12 for Babylonian/Huber\n\
13 for Babylonian/Eta Piscium\n\
14 for Babylonian/Aldebaran = 15 Tau\n\
15 for Hipparchos\n\
16 for Sassanian\n\
17 for Galact. Center = 0 Sag\n\
18 for J2000\n\
19 for J1900\n\
20 for B1950\n\
21 for Suryasiddhanta\n\
22 for Suryasiddhanta, mean Sun\n\
23 for Aryabhata\n\
24 for Aryabhata, mean Sun\n\
25 for SS Revati\n\
26 for SS Citra\n\
27 for True Citra\n\
28 for True Revati\n\
29 for True Pushya (PVRN Rao)\n\
30 for Galactic (Gil Brand)\n\
31 for Galactic Equator (IAU1958)\n\
32 for Galactic Equator\n\
33 for Galactic Equator mid-Mula\n\
34 for Skydram (Mardyks)\n\
35 for True Mula (Chandra Hari)\n\
36 Dhruva/Gal.Center/Mula (Wilhelm)\n\
37 Aryabhata 522\n\
38 Babylonian/Britton\n\
39 Vedic/Sheoran\n\
40 Cochrane (Gal.Center = 0 Cap)\n\
41 Galactic Equator (Fiorenza)\n\
42 Vettius Valens\n\
43 Lahiri 1940\n\
44 Lahiri VP285 (1980)\n\
45 Krishnamurti VP291\n\
46 Lahiri ICRC\n\
ephemeris specifications:\n\
-edirPATH change the directory of the ephemeris files \n\
-eswe swiss ephemeris\n\
-ejpl jpl ephemeris (DE431), or with ephemeris file name\n\
-ejplde200.eph \n\
-emos moshier ephemeris\n\
-true true positions\n\
-noaberr no aberration\n\
-nodefl no gravitational light deflection\n\
-noaberr -nodefl astrometric positions\n\
-j2000 no precession (i.e. J2000 positions)\n\
-icrs ICRS (use Internat. Celestial Reference System)\n\
-nonut no nutation \n\
";
static char *infocmd4 = "\
-speed calculate high precision speed \n\
-speed3 'low' precision speed from 3 positions \n\
do not use this option. -speed parameter\n\
is faster and more precise \n\
-iXX force iflag to value XX\n\
-testaa96 test example in AA 96, B37,\n\
i.e. venus, j2450442.5, DE200.\n\
attention: use precession IAU1976\n\
and nutation 1980 (s. swephlib.h)\n\
-testaa95\n\
-testaa97\n\
-roundsec round to seconds\n\
-roundmin round to minutes\n\
-ep use extra precision in output for some data\n\
-dms use dms instead of fractions, at some places\n\
-lim print ephemeris file range\n\
observer position:\n\
-hel compute heliocentric positions\n\
-bary compute barycentric positions (bar. earth instead of node) \n\
-topo[long,lat,elev] \n\
topocentric positions. The longitude, latitude (degrees with\n\
DECIMAL fraction) and elevation (meters) can be given, with\n\
commas separated, + for east and north. If none are given,\n\
Greenwich is used 0.00,51.50,0\n\
-pc... compute planetocentric positions\n\
to specify the central body, use the internal object number\n\
of Swiss Ephemeris, e.g. 3 for Venus, 4 for Mars, \n\
-pc3 Venus-centric \n\
-pc4 Mars-centric \n\
-pc5 Jupiter-centric (barycenter)\n\
-pc9599 Jupiter-centric (center of body)\n\
-pc9699 Saturn-centric (center of body)\n\
For asteroids use MPC number + 10000, e.g.\n\
-pc10433 Eros-centric (Eros = 433 + 10000)\n\
orbital elements:\n\
-orbel compute osculating orbital elements relative to the\n\
mean ecliptic J2000. (Note, all values, including time of\n\
pericenter vary considerably depending on the date for which the\n\
osculating ellipse is calculated\n\
\n\
special events:\n\
-solecl solar eclipse\n\
output 1st line:\n\
eclipse date,\n\
time of maximum (UT):\n\
geocentric angle between centre of Sun and Moon reaches minimum.\n\
core shadow width (negative with total eclipses),\n\
eclipse magnitudes:\n\
1. NASA method (= 2. with partial ecl. and \n\
ratio lunar/solar diameter with total and annular ecl.)\n\
2. fraction of solar diameter covered by moon;\n\
if the value is > 1, it means that Moon covers more than\n\
just the solar disk\n\
3. fraction of solar disc covered by moon (obscuration)\n\
with total and annular eclipses it is the ratio of\n\
the sizes of the solar disk and the lunar disk.\n\
Saros series and eclipse number\n\
Julian day number (6-digit fraction) of maximum\n\
output 2nd line:\n\
start and end times for partial and total phases\n\
delta t in sec\n\
output 3rd line:\n\
geographical longitude and latitude of maximum eclipse,\n\
totality duration at that geographical position,\n\
output with -local, see below.\n\
-occult occultation of planet or star by the moon. Use -p to \n\
specify planet (-pf -xfAldebaran for stars) \n\
output format same as with -solecl, with the following differences:\n\
Magnitude is defined like no. 2. with solar eclipses.\n\
There are no saros series.\n\
";
static char *infocmd5 = "\
-lunecl lunar eclipse\n\
output 1st line:\n\
eclipse date,\n\
time of maximum (UT),\n\
eclipse magnitudes: umbral and penumbral\n\
method as method 2 with solar eclipses\n\
Saros series and eclipse number \n\
Julian day number (6-digit fraction) of maximum\n\
output 2nd line:\n\
6 contacts for start and end of penumbral, partial, and\n\
total phase\n\
delta t in sec\n\
output 3rd line:\n\
geographic position where the Moon is in zenith at maximum eclipse\n\
-local only with -solecl or -occult, if the next event of this\n\
kind is wanted for a given geogr. position.\n\
Use -geopos[long,lat,elev] to specify that position.\n\
If -local is not set, the program \n\
searches for the next event anywhere on earth.\n\
output 1st line:\n\
eclipse date,\n\
time of maximum,\n\
eclipse magnitudes, as with global solar eclipse function \n\
(with occultations: only diameter method, see solar eclipses, method 2)\n\
Saros series and eclipse number (with solar eclipses only)\n\
Julian day number (6-digit fraction) of maximum\n\
output 2nd line:\n\
local eclipse duration for totality (zero with partial occultations)\n\
local four contacts,\n\
delta t in sec\n\
Occultations with the remark \"(daytime)\" cannot be observed because\n\
they are taking place by daylight. Occultations with the remark\n\
\"(sunrise)\" or \"(sunset)\" can be observed only partly because part\n\
of them takes place in daylight.\n\
-hev[type] heliacal events,\n\
type 1 = heliacal rising\n\
type 2 = heliacal setting\n\
type 3 = evening first\n\
type 4 = morning last\n\
type 0 or missing = all four events are listed.\n\
-rise rising and setting of a planet or star.\n\
Use -geopos[long,lat,elev] to specify geographical position.\n\
-metr southern and northern meridian transit of a planet of star\n\
Use -geopos[long,lat,elev] to specify geographical position.\n\
specifications for eclipses:\n\
-total total eclipse (only with -solecl, -lunecl)\n\
-partial partial eclipse (only with -solecl, -lunecl)\n\
-annular annular eclipse (only with -solecl)\n\
-anntot annular-total (hybrid) eclipse (only with -solecl)\n\
-penumbral penumbral lunar eclipse (only with -lunecl)\n\
-central central eclipse (only with -solecl, nonlocal)\n\
-noncentral non-central eclipse (only with -solecl, nonlocal)\n\
";
static char *infocmd6 = "\
specifications for risings and settings:\n\
-norefrac neglect refraction (with option -rise)\n\
-disccenter find rise of disc center (with option -rise)\n\
-discbottom find rise of disc bottom (with option -rise)\n\
-hindu hindu version of sunrise (with option -rise)\n\
specifications for heliacal events:\n\
-at[press,temp,rhum,visr]:\n\
pressure in hPa\n\
temperature in degrees Celsius\n\
relative humidity in %\n\
visual range, interpreted as follows:\n\
> 1 : meteorological range in km\n\
1>visr>0 : total atmospheric coefficient (ktot)\n\
= 0 : calculated from press, temp, rhum\n\
Default values are -at1013.25,15,40,0\n\
-obs[age,SN] age of observer and Snellen ratio\n\
Default values are -obs36,1\n\
-opt[age,SN,binocular,magn,diam,transm]\n\
age and SN as with -obs\n\
0 monocular or 1 binocular\n\
telescope magnification\n\
optical aperture in mm\n\
optical transmission\n\
Default values: -opt36,1,1,1,0,0 (naked eye)\n\
backward search:\n\
-bwd\n";
/* characters still available:
ijklruv
*/
static char *infoplan = "\n\
Planet selection letters:\n\
planetary lists:\n\
d (default) main factors 0123456789mtABCcg\n\
p main factors as above, plus main asteroids DEFGHI\n\
h ficticious factors J..X\n\
a all factors\n\
(the letters above can only appear as a single letter)\n\n\
single body numbers/letters:\n\
0 Sun (character zero)\n\
1 Moon (character 1)\n\
2 Mercury\n\
3 Venus\n\
4 Mars\n\
5 Jupiter\n\
6 Saturn\n\
7 Uranus\n\
8 Neptune\n\
9 Pluto\n\
m mean lunar node\n\
t true lunar node\n\
n nutation\n\
o obliquity of ecliptic\n\
q delta t\n\
y time equation\n\
b ayanamsha\n\
A mean lunar apogee (Lilith, Black Moon) \n\
B osculating lunar apogee \n\
c intp. lunar apogee \n\
g intp. lunar perigee \n\
C Earth (in heliocentric or barycentric calculation)\n\
For planets Jupiter to Pluto the center of body (COB) can be\n\
calculated using the additional parameter -cob\n\
dwarf planets, plutoids\n\
F Ceres\n\
9 Pluto\n\
s -xs136199 Eris\n\
s -xs136472 Makemake\n\
s -xs136108 Haumea\n\
some minor planets:\n\
D Chiron\n\
E Pholus\n\
G Pallas \n\
H Juno \n\
I Vesta \n\
s minor planet, with MPC number given in -xs\n\
some planetary moons and center of body of a planet:\n\
v with moon number given in -xv:\n\
v -xv9501 Io/Jupiter:\n\
v -xv9599 Jupiter, center of body (COB):\n\
v -xv94.. Mars moons:\n\
v -xv95.. Jupiter moons and COB:\n\
v -xv96.. Saturn moons and COB:\n\
v -xv97.. Uranus moons and COB:\n\
v -xv98.. Neptune moons and COB:\n\
v -xv99.. Pluto moons and COB:\n\
The numbers of the moons are given here: \n\
https://www.astro.com/ftp/swisseph/ephe/sat/plmolist.txt\n\
fixed stars:\n\
f fixed star, with name or number given in -xf option\n\
f -xfSirius Sirius\n\
fictitious objects:\n\
J Cupido \n\
K Hades \n\
L Zeus \n\
M Kronos \n\
N Apollon \n\
O Admetos \n\
P Vulkanus \n\
Q Poseidon \n\
R Isis (Sevin) \n\
S Nibiru (Sitchin) \n\
T Harrington \n\
U Leverrier's Neptune\n\
V Adams' Neptune\n\
W Lowell's Pluto\n\
X Pickering's Pluto\n\
Y Vulcan\n\
Z White Moon\n\
w Waldemath's dark Moon\n\
z hypothetical body, with number given in -xz\n\
sidereal time:\n\
x sidereal time\n\
e print a line of labels\n\
\n";
/* characters still available
CcEeMmOoqWwz
*/
static char *infoform = "\n\
Output format SEQ letters:\n\
In the standard setting five columns of coordinates are printed with\n\
the default format PLBRS. You can change the default by providing an\n\
option like -fCCCC where CCCC is your sequence of columns.\n\
The coding of the sequence is like this:\n\
y year\n\
Y year.fraction_of_year\n\
p planet index\n\
P planet name\n\
J absolute juldate\n\
T date formatted like 23.02.1992 \n\
t date formatted like 920223 for 1992 february 23\n\
L longitude in degree ddd mm'ss\"\n\
l longitude decimal\n\
Z longitude ddsignmm'ss\"\n\
S speed in longitude in degree ddd:mm:ss per day\n\
SS speed for all values specified in fmt\n\
s speed longitude decimal (degrees/day)\n\
ss speed for all values specified in fmt\n\
B latitude degree\n\
b latitude decimal\n\
R distance decimal in AU\n\
r distance decimal in AU, Moon in seconds parallax\n\
W distance decimal in light years\n\
w distance decimal in km\n\
q relative distance (1000=nearest, 0=furthest)\n\
A right ascension in hh:mm:ss\n\
a right ascension hours decimal\n\
m Meridian distance \n\
z Zenith distance \n\
D declination degree\n\
d declination decimal\n\
I azimuth degree\n\
i azimuth decimal\n\
H altitude degree\n\
h altitude decimal\n\
K altitude (with refraction) degree\n\
k altitude (with refraction) decimal\n\
G house position in degrees\n\
g house position in degrees decimal\n\
j house number 1.0 - 12.99999\n\
X x-, y-, and z-coordinates ecliptical\n\
x x-, y-, and z-coordinates equatorial\n\
U unit vector ecliptical\n\
u unit vector equatorial\n\
Q l, b, r, dl, db, dr, a, d, da, dd\n\
n nodes (mean): ascending/descending (Me - Ne); longitude decimal\n\
N nodes (osculating): ascending/descending, longitude; decimal\n\
f apsides (mean): perihelion, aphelion, second focal point; longitude dec.\n\
F apsides (osc.): perihelion, aphelion, second focal point; longitude dec.\n\
+ phase angle\n\
- phase\n\
* elongation\n\
/ apparent diameter of disc (without refraction)\n\
= magnitude\n";
static char *infoform2 = "\
v (reserved)\n\
V (reserved)\n\
";
static char *infodate = "\n\
Date entry:\n\
In the interactive mode, when you are asked for a start date,\n\
you can enter data in one of the following formats:\n\
\n\
1.2.1991 three integers separated by a nondigit character for\n\
day month year. Dates are interpreted as Gregorian\n\
after 4.10.1582 and as Julian Calendar before.\n\
Time is always set to midnight (0 h).\n\
If the three letters jul are appended to the date,\n\
the Julian calendar is used even after 1582.\n\
If the four letters greg are appended to the date,\n\
the Gregorian calendar is used even before 1582.\n\
\n\
j2400123.67 the letter j followed by a real number, for\n\
the absolute Julian daynumber of the start date.\n\
Fraction .5 indicates midnight, fraction .0\n\
indicates noon, other times of the day can be\n\
chosen accordingly.\n\
\n\
<RETURN> repeat the last entry\n\
\n\
. stop the program\n\
\n\
+20 advance the date by 20 days\n\
\n\
-10 go back in time 10 days\n";
static char *infoexamp = "\n\
\n\
Examples:\n\
\n\
swetest -p2 -b1.12.1900 -n15 -s2\n\
ephemeris of Mercury (-p2) starting on 1 Dec 1900,\n\
15 positions (-n15) in two-day steps (-s2)\n\
\n\
swetest -p2 -b1.12.1900 -n15 -s2 -fTZ -roundsec -g, -head\n\
same, but output format = date and zodiacal position (-fTZ),\n\
separated by comma (-g,) and rounded to seconds (-roundsec),\n\
without header (-head).\n\
\n\
swetest -ps -xs433 -b1.12.1900\n\
position of asteroid 433 Eros (-ps -xs433)\n\
\n\
swetest -pf -xfAldebaran -b1.1.2000\n\
position of fixed star Aldebaran \n\
\n\
swetest -p1 -d0 -b1.12.1900 -n10 -fPTl -head\n\
angular distance of moon (-p1) from sun (-d0) for 10\n\
consecutive days (-n10).\n\
\n\
swetest -p6 -DD -b1.12.1900 -n100 -s5 -fPTZ -head -roundmin\n\
Midpoints between Saturn (-p6) and Chiron (-DD) for 100\n\
consecutive steps (-n100) with 5-day steps (-s5) with\n\
longitude in degree-sign format (-f..Z) rounded to minutes (-roundmin)\n\
\n\
swetest -b5.1.2002 -p -house12.05,49.50,K -ut12:30\n\
Koch houses for a location in Germany at a given date and time\n\
\n\
swetest -b1.1.2016 -g -fTlbR -p0123456789Dmte -hor -n366 -roundsec\n\
tabular ephemeris (all planets Sun - Pluto, Chiron, mean node, true node)\n\
in one horizontal row, tab-separated, for 366 days. For each planet\n\
list longitude, latitude and geocentric distance.\n";
/**************************************************************/
#include "swephexp.h" /* this includes "sweodef.h" */
#include "swephlib.h"
#include "sweph.h"
/*
* programmers warning: It looks much worse than it is!
* Originally swetest.c was a small and simple test program to test
* the main functions of the Swiss Ephemeris and to demonstrate
* its precision.
* It compiles on Unix, on MSDOS and as a non-GUI utility on 16-bit
* and 32-bit windows.
* This portability has forced us into some clumsy constructs, which
* end to hide the actual simplicity of the use of Swiss Ephemeris.
* For example, the mechanism implemented here in swetest.c to find
* the binary ephemeris files overrides the much simpler mechanism
* inside the SwissEph library. This was necessary because we wanted
* swetest.exe to run directly off the CDROM and search with some
* intelligence for ephemeris files already installed on a system.
*/
#if MSDOS
# include <direct.h>
# include <dos.h>
# ifdef _MSC_VER
# include <sys\types.h>
# endif
#ifdef __MINGW32__
# include <sys/stat.h>
#else
# include <sys\stat.h>
#endif
# include <float.h>
#else
# ifdef MACOS
# include <console.h>
# else
# include <sys/stat.h>
# endif
#endif
#define J2000 2451545.0 /* 2000 January 1.5 */
#define square_sum(x) (x[0]*x[0]+x[1]*x[1]+x[2]*x[2])
#define SEFLG_EPHMASK (SEFLG_JPLEPH|SEFLG_SWIEPH|SEFLG_MOSEPH)
#define BIT_ROUND_SEC 1
#define BIT_ROUND_MIN 2
#define BIT_ZODIAC 4
#define BIT_LZEROES 8
#define BIT_TIME_LZEROES 8
#define BIT_TIME_LMT 16
#define BIT_TIME_LAT 32
#define BIT_ALLOW_361 64
#define PLSEL_D "0123456789mtA"
#define PLSEL_P "0123456789mtABCcgDEFGHI"
#define PLSEL_H "JKLMNOPQRSTUVWXYZw"
#define PLSEL_A "0123456789mtABCcgDEFGHIJKLMNOPQRSTUVWXYZw"
#define DIFF_DIFF 'd'
#define DIFF_GEOHEL 'h'
#define DIFF_MIDP 'D'
#define MODE_HOUSE 1
#define MODE_LABEL 2
#define MODE_AYANAMSA 4
#define SEARCH_RANGE_LUNAR_CYCLES 20000
#define LEN_SOUT 1000 // length of output string variable
#define SIND(x) sin((x) * DEGTORAD)
#define COSD(x) cos((x) * DEGTORAD)
#define ACOSD(x) (acos((x)) * RADTODEG)
static char se_pname[AS_MAXCH];
static char *zod_nam[] = {"ar", "ta", "ge", "cn", "le", "vi",
"li", "sc", "sa", "cp", "aq", "pi"};
static char star[AS_MAXCH] = "algol", star2[AS_MAXCH];
static char sastno[AS_MAXCH] = "433";
static char shyp[AS_MAXCH] = "1";
static char *dms(double x, int32 iflag);
static int make_ephemeris_path(char *argv0, char *ephepath);
static int letter_to_ipl(int letter);
static int print_line(int mode, AS_BOOL is_first, int sid_mode);
static int do_special_event(double tjd, int32 ipl, char *star, int32 special_event, int32 special_mode, double *geopos, double *datm, double *dobs, char *serr) ;
static int32 orbital_elements(double tjd_et, int32 ipl, int32 iflag, char *serr);
static char *hms_from_tjd(double x);
static void do_printf(char *info);
static char *hms(double x, int32 iflag);
static void remove_whitespace(char *s);
#if MSDOS
static int cut_str_any(char *s, char *cutlist, char *cpos[], int nmax);
#endif
static int32 call_swe_fixstar(char *star, double te, int32 iflag, double *x, char *serr);
static void jd_to_time_string(double jut, char *stimeout);
static char *our_strcpy(char *to, char *from);
/* globals shared between main() and print_line() */
static char *fmt = "PLBRS";
static char *gap = " ";
static double t, te, tut, jut = 0;
static int jmon, jday, jyear;
static int ipl = SE_SUN, ipldiff = SE_SUN, nhouses = 12;
static int iplctr = SE_SUN;
static char spnam[AS_MAXCH], spnam2[AS_MAXCH], serr[AS_MAXCH];
static char serr_save[AS_MAXCH], serr_warn[AS_MAXCH];
static int gregflag = SE_GREG_CAL;
static AS_BOOL gregflag_auto = TRUE;
static int diff_mode = 0;
static AS_BOOL use_dms = FALSE;
static AS_BOOL universal_time = FALSE;
static AS_BOOL universal_time_utc = FALSE;
static int32 round_flag = 0;
static int32 time_flag = 0;
static AS_BOOL short_output = FALSE;
static AS_BOOL list_hor = FALSE;
static int32 special_event = 0;
static int32 special_mode = 0;
static AS_BOOL do_orbital_elements = FALSE;
static AS_BOOL hel_using_AV = FALSE;
static AS_BOOL with_header = TRUE;
static AS_BOOL with_chart_link = FALSE;
static double x[6], x2[6], xequ[6], xcart[6], xcartq[6], xobl[6], xaz[6], xt[6], hpos, hpos2, hposj, armc, xsv[6];
static int hpos_meth = 0;
static double geopos[10];
static double attr[20], tret[20], datm[4], dobs[6];
static int32 iflag = 0, iflag2; /* external flag: helio, geo... */
static char *hs_nam[] =
{"undef", "Ascendant", "MC", "ARMC", "Vertex", "equat. Asc.","co-Asc. W.Koch", "co-Asc Munkasey", "Polar Asc."};
static int direction = 1;
static AS_BOOL direction_flag = FALSE;
static AS_BOOL step_in_minutes = FALSE;
static AS_BOOL step_in_seconds = FALSE;
static AS_BOOL step_in_years = FALSE;
static AS_BOOL step_in_months = FALSE;
static int32 helflag = 0;
static double tjd = 2415020.5;
static int32 nstep = 1, istep;
static int32 search_flag = 0;
static char sout[LEN_SOUT];
static int32 whicheph = SEFLG_SWIEPH;
static char *psp;
static int32 norefrac = 0;
static int32 disccenter = 0;
static int32 discbottom = 0;
static int32 hindu = 0;
/* for test of old models only */
static char *astro_models;
static int do_set_astro_models = FALSE;
static char smod[2000];
static AS_BOOL inut = FALSE; /* for Astrodienst internal feature */
static AS_BOOL have_gap_parameter = FALSE;
static AS_BOOL use_swe_fixstar2 = FALSE;
static AS_BOOL output_extra_prec = FALSE;
static AS_BOOL show_file_limit = FALSE;
#define SP_LUNAR_ECLIPSE 1
#define SP_SOLAR_ECLIPSE 2
#define SP_OCCULTATION 3
#define SP_RISE_SET 4
#define SP_MERIDIAN_TRANSIT 5
#define SP_HELIACAL 6
# define SP_MODE_HOW 2 /* an option for Lunar */
# define SP_MODE_LOCAL 8 /* an option for Solar */
# define SP_MODE_HOCAL 4096
# define ECL_LUN_PENUMBRAL 1 /* eclipse types for hocal list */
# define ECL_LUN_PARTIAL 2
# define ECL_LUN_TOTAL 3
# define ECL_SOL_PARTIAL 4
# define ECL_SOL_ANNULAR 5
# define ECL_SOL_TOTAL 6
int main(int argc, char *argv[])
{
char sdate_save[AS_MAXCH];
char s1[AS_MAXCH], s2[AS_MAXCH];
char *sp, *sp2;
char *spno;
char *plsel = PLSEL_D;
#if HPUNIX
char hostname[80];
#endif
int i, j, n, iflag_f = -1, iflgt;
int line_count, line_limit = 36525; // days in a century
double daya;
double top_long = 0.0; /* Greenwich UK */
double top_lat = 51.5;
double top_elev = 0;
AS_BOOL have_geopos = FALSE;
int ihsy = 'P';
int year_start = 0, mon_start = 1, day_start = 1;
AS_BOOL do_houses = FALSE;
char ephepath[AS_MAXCH];
char fname[AS_MAXCH];
char sdate[AS_MAXCH];
char *begindate = NULL;
char stimein[AS_MAXCH];
char stimeout[AS_MAXCH];
int32 iflgret;
AS_BOOL is_first = TRUE;
AS_BOOL with_glp = FALSE;
AS_BOOL with_header_always = FALSE;
AS_BOOL do_ayanamsa = FALSE;
AS_BOOL do_planeto_centric = FALSE;
double aya_t0 = 0, aya_val0 = 0;
AS_BOOL no_speed = FALSE;
int32 sid_mode = SE_SIDM_FAGAN_BRADLEY;
double t2, tstep = 1, thour = 0;
double delt;
double tid_acc = 0;
datm[0] = 1013.25; datm[1] = 15; datm[2] = 40; datm[3] = 0;
dobs[0] = 0; dobs[1] = 0;
dobs[2] = 0; dobs[3] = 0; dobs[4] = 0; dobs[5] = 0;
serr[0] = serr_save[0] = serr_warn[0] = sdate_save[0] = '\0';
# ifdef MACOS
argc = ccommand(&argv); /* display the arguments window */
# endif
*stimein = '\0';
strcpy(ephepath, "");
strcpy(fname, SE_FNAME_DFT);
for (i = 1; i < argc; i++) {
if (strncmp(argv[i], "-utc", 4) == 0) {
universal_time = TRUE;
universal_time_utc = TRUE;
if (strlen(argv[i]) > 4) {
strncpy(stimein, argv[i] + 4, 30);
stimein[30] = '\0';
}
} else if (strncmp(argv[i], "-ut", 3) == 0) {
universal_time = TRUE;
if (strlen(argv[i]) > 3) {
strncpy(stimein, argv[i] + 3, 30);
stimein[30] = '\0';
}
} else if (strncmp(argv[i], "-glp", 4) == 0) {
with_glp = TRUE;
} else if (strncmp(argv[i], "-hor", 4) == 0) {
list_hor = TRUE;
} else if (strncmp(argv[i], "-head", 5) == 0) {
with_header = FALSE;
} else if (strncmp(argv[i], "+head", 5) == 0) {
with_header_always = TRUE;
} else if (strcmp(argv[i], "-j2000") == 0) {
iflag |= SEFLG_J2000;
} else if (strcmp(argv[i], "-icrs") == 0) {
iflag |= SEFLG_ICRS;
} else if (strcmp(argv[i], "-cob") == 0) {
iflag |= SEFLG_CENTER_BODY;
} else if (strncmp(argv[i], "-ay", 3) == 0) {
do_ayanamsa = TRUE;
sid_mode = atol(argv[i]+3);
/*swe_set_sid_mode(sid_mode, 0, 0);*/
} else if (strncmp(argv[i], "-sidt0", 6) == 0) {
iflag |= SEFLG_SIDEREAL;
sid_mode = atol(argv[i]+6);
if (sid_mode == 0)
sid_mode = SE_SIDM_FAGAN_BRADLEY;
sid_mode |= SE_SIDBIT_ECL_T0;
/*swe_set_sid_mode(sid_mode, 0, 0);*/
} else if (strncmp(argv[i], "-sidsp", 6) == 0) {
iflag |= SEFLG_SIDEREAL;
sid_mode = atol(argv[i]+6);
if (sid_mode == 0)
sid_mode = SE_SIDM_FAGAN_BRADLEY;
sid_mode |= SE_SIDBIT_SSY_PLANE;
} else if (strncmp(argv[i], "-sidudef", 8) == 0) {
iflag |= SEFLG_SIDEREAL;
sid_mode = SE_SIDM_USER;
strcpy(s1, argv[i] + 8);
aya_t0 = atof(s1);
if ((sp = strchr(s1, ',')) != NULL) {
aya_val0 = atof(sp+1);
}
if (strstr(sp, "jdisut") != NULL) {
sid_mode |= SE_SIDBIT_USER_UT;
}
/*swe_set_sid_mode(sid_mode, 0, 0);*/
} else if (strncmp(argv[i], "-sidbit", 7) == 0) {
sid_mode |= atoi(argv[i]+7);
} else if (strncmp(argv[i], "-sid", 4) == 0) {
iflag |= SEFLG_SIDEREAL;
sid_mode = atol(argv[i]+4);
/*if (sid_mode > 0)
swe_set_sid_mode(sid_mode, 0, 0);*/
} else if (strcmp(argv[i], "-jplhora") == 0) {
iflag |= SEFLG_JPLHOR_APPROX;
} else if (strcmp(argv[i], "-tpm") == 0) {
iflag |= SEFLG_TEST_PLMOON;
} else if (strcmp(argv[i], "-jplhor") == 0) {
iflag |= SEFLG_JPLHOR;
} else if (strncmp(argv[i], "-j", 2) == 0) {
begindate = argv[i] + 1;
} else if (strncmp(argv[i], "-ejpl", 5) == 0) {
whicheph = SEFLG_JPLEPH;
if (*(argv[i]+5) != '\0') {
strncpy(fname, argv[i]+5, AS_MAXCH - 1);
fname[AS_MAXCH-1] = '\0';
}
} else if (strncmp(argv[i], "-edir", 5) == 0) {
if (*(argv[i]+5) != '\0') {
strncpy(ephepath, argv[i]+5, AS_MAXCH - 1);
ephepath[AS_MAXCH-1] = '\0';
}
} else if (strcmp(argv[i], "-eswe") == 0) {
whicheph = SEFLG_SWIEPH;
} else if (strcmp(argv[i], "-emos") == 0) {
whicheph = SEFLG_MOSEPH;
} else if (strncmp(argv[i], "-helflag", 8) == 0) {
helflag = atoi(argv[i]+8);
if (helflag >= SE_HELFLAG_AV)
hel_using_AV = TRUE;
} else if (strcmp(argv[i], "-hel") == 0) {
iflag |= SEFLG_HELCTR;
} else if (strcmp(argv[i], "-bary") == 0) {
iflag |= SEFLG_BARYCTR;
} else if (strncmp(argv[i], "-house", 6) == 0) {
sout[0] = '\0';
sout[1] = '\0';
sp = argv[i] + 6;
if (*sp == '[') sp++;
sscanf(sp, "%lf,%lf,%c", &top_long, &top_lat, sout);
top_elev = 0;
if (*sout) ihsy = sout[0];
do_houses = TRUE;
have_geopos = TRUE;
} else if (strncmp(argv[i], "-hsy", 4) == 0) {
ihsy = *(argv[i] + 4);
if (ihsy == '\0') ihsy = 'P';
if (strlen(argv[i]) > 5)
hpos_meth = atoi(argv[i] + 5);
have_geopos = TRUE;
} else if (strncmp(argv[i], "-topo", 5) == 0) {
iflag |= SEFLG_TOPOCTR;
sp = argv[i] + 5;
if (*sp == '[') sp++;
sscanf(sp, "%lf,%lf,%lf", &top_long, &top_lat, &top_elev);
have_geopos = TRUE;
} else if (strncmp(argv[i], "-geopos", 7) == 0) {
sp = argv[i] + 7;
if (*sp == '[') sp++;
sscanf(sp, "%lf,%lf,%lf", &top_long, &top_lat, &top_elev);
have_geopos = TRUE;
} else if (strcmp(argv[i], "-true") == 0) {
iflag |= SEFLG_TRUEPOS;
} else if (strcmp(argv[i], "-noaberr") == 0) {
iflag |= SEFLG_NOABERR;
} else if (strcmp(argv[i], "-nodefl") == 0) {
iflag |= SEFLG_NOGDEFL;
} else if (strcmp(argv[i], "-nonut") == 0) {
iflag |= SEFLG_NONUT;
} else if (strcmp(argv[i], "-speed3") == 0) {
iflag |= SEFLG_SPEED3;
} else if (strcmp(argv[i], "-speed") == 0) {
iflag |= SEFLG_SPEED;
} else if (strcmp(argv[i], "-nospeed") == 0) {
no_speed = TRUE;
} else if (strncmp(argv[i], "-testaa", 7) == 0) {
whicheph = SEFLG_JPLEPH;