Remove the bundled Swiss Ephemeris library
parent
aadf4a280e
commit
e03ed37133
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# This file contains the dates of leap seconds to be taken into account
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# by the Swiss Ephemeris.
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# For each new leap second add the date of its insertion in the format
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# yyyymmdd, e.g. "20081231" for 21 december 2008
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19720630
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19721231
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19731231
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19741231
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19751231
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19761231
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19771231
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19781231
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19791231
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19810630
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19820630
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19830630
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19850630
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19871231
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19891231
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19901231
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19920630
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19930630
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19949630
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19951231
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19970630
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19981231
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20051231
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20081231
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20120630
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20150630
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20161231
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# Orbital elements of ficticious planets
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# 27 Jan. 2000
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#
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# This file is part of the Swiss Ephemeris, from Version 1.52 on.
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#
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# Warning! These planets do not exist!
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#
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# The user can add his or her own elements.
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# 960 is the maximum number of ficticious planets.
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#
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# The elements order is as follows:
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# 1. epoch of elements (Julian day)
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# 2. equinox (Julian day or "J1900" or "B1950" or "J2000")
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# 3. mean anomaly at epoch
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# 4. semi-axis
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# 5. eccentricity
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# 6. argument of perihelion (ang. distance of perihelion from node)
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# 7. ascending node
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# 8. inclination
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# 9. name of planet
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#
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# use '#' for comments
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# to compute a body with swe_calc(), use planet number
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# ipl = SE_FICT_OFFSET_1 + number_of_elements_set,
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# e.g. number of Kronos is ipl = 39 + 4 = 43
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#
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# Witte/Sieggruen planets, refined by James Neely
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J1900, J1900, 163.7409, 40.99837, 0.00460, 171.4333, 129.8325, 1.0833, Cupido # 1
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J1900, J1900, 27.6496, 50.66744, 0.00245, 148.1796, 161.3339, 1.0500, Hades # 2
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J1900, J1900, 165.1232, 59.21436, 0.00120, 299.0440, 0.0000, 0.0000, Zeus # 3
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J1900, J1900, 169.0193, 64.81690, 0.00305, 208.8801, 0.0000, 0.0000, Kronos # 4
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J1900, J1900, 138.0533, 70.29949, 0.00000, 0.0000, 0.0000, 0.0000, Apollon # 5
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J1900, J1900, 351.3350, 73.62765, 0.00000, 0.0000, 0.0000, 0.0000, Admetos # 6
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J1900, J1900, 55.8983, 77.25568, 0.00000, 0.0000, 0.0000, 0.0000, Vulcanus # 7
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J1900, J1900, 165.5163, 83.66907, 0.00000, 0.0000, 0.0000, 0.0000, Poseidon # 8
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#
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# Isis-Transpluto; elements from "Die Sterne" 3/1952, p. 70ff.
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# Strubell does not give an equinox. 1945 is taken in order to
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# reproduce the as best as ASTRON ephemeris. (This is a strange
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# choice, though.)
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# The epoch according to Strubell is 1772.76.
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# 1772 is a leap year!
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# The fraction is counted from 1 Jan. 1772
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2368547.66, 2431456.5, 0.0, 77.775, 0.3, 0.7, 0, 0, Isis-Transpluto # 9
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# Nibiru, elements from Christian Woeltge, Hannover
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1856113.380954, 1856113.380954, 0.0, 234.8921, 0.981092, 103.966, -44.567, 158.708, Nibiru # 10
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# Harrington, elements from Astronomical Journal 96(4), Oct. 1988
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2374696.5, J2000, 0.0, 101.2, 0.411, 208.5, 275.4, 32.4, Harrington # 11
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# according to W.G. Hoyt, "Planets X and Pluto", Tucson 1980, p. 63
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2395662.5, 2395662.5, 34.05, 36.15, 0.10761, 284.75, 0, 0, Leverrier (Neptune) # 12
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2395662.5, 2395662.5, 24.28, 37.25, 0.12062, 299.11, 0, 0, Adams (Neptune) # 13
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2425977.5, 2425977.5, 281, 43.0, 0.202, 204.9, 0, 0, Lowell (Pluto) # 14
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2425977.5, 2425977.5, 48.95, 55.1, 0.31, 280.1, 100, 15, Pickering (Pluto) # 15
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# intramercurian hypothetical Vulcan acc. to L.H. Weston
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J1900,JDATE, 252.8987988 + 707550.7341 * T, 0.13744, 0.019, 322.212069+1670.056*T, 47.787931-1670.056*T, 7.5, Vulcan # 16
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# Selena/White Moon
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J2000,JDATE, 242.2205555 + 5143.5418158 * T, 0.05280098949, 0.0, 0.0, 0.0, 0.0, Selena/White Moon, geo # 17
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# Hypothetical planet Proserpina, according to http://www.geocities.com/Hollywood/Academy/7519/proserpina.html
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# J1900, 170.73 + 51.05 * T
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J1900,JDATE, 170.73, 79.225630, 0, 0, 0, 0, Proserpina #18
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# Waldemath's Second Earth Moon
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# Elements were derived by D.Koch from Waldemaths original elements as given in
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# David Walters' book on Vulcan. They differ from Solar Fire (Graham Dawsons)
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# elements, which are based on the assumption that the "mean longitude" given
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# by Waldemath is an observation (a true longitude)
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# Neither Swisseph nor Solar fire elements agree with Delphine Jay's ephemeris,
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# which is obviously wrong.
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2414290.95827875,2414290.95827875, 70.3407215 + 109023.2634989 * T, 0.0068400705250028, 0.1587, 8.14049594 + 2393.47417444 * T, 136.24878256 - 1131.71719709 * T, 2.5, Waldemath, geo # 19
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#
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# The following elements are for test only
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# (Selena without T)
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J2000,JDATE, 242.2205555, 0.05279142865925, 0.0, 0.0, 0.0, 0.0, Selena/White Moon, geo # 17
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# (Selena with T, gives exactly the same position)
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J2000,JDATE, 242.2205555 + 5143.5418158 * T, 0.05279142865925, 0.0, 0.0, 0.0, 0.0, Selena/White Moon with T Terms, geo # 17
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J2000, JDATE, 174.794787 + 149472.5157715 * T, 0.38709831, 0.20563175 + 0.000020406 * T, 29.125226 + 0.3702885 * T, 48.330893 + 1.186189 * T, 7.004986 + 0.0018215 * T, Mercury elem. for equ. of date # 18
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J2000, J2000, 174.794787 + 149472.5157715 * T, 0.38709831, 0.20563175 + 0.000020406 * T, 29.125226 + 0.2842872 * T, 48.330893 - 0.1254229 * T, 7.004986 - 0.0059516 * T, Mercury Test J2000 Elements# 18
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EXTRA_DIST = README
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@ -1,5 +0,0 @@
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This directory contains version 2.0 of the Swiss Ephemeris programming library
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in a reduced form, so it can be used in an Autotools project like Astrognome.
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If you need the full version, you can download it from
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ftp://ftp.astro.com/pub/swisseph/ (as of July, 2013)
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EXTRA_DIST = swephprg.pdf swisseph.pdf
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/* Copyright (C) 1997 - 2008 Astrodienst AG, Switzerland. All rights reserved.
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License conditions
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------------------
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This file is part of Swiss Ephemeris.
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Swiss Ephemeris is distributed with NO WARRANTY OF ANY KIND. No author
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or distributor accepts any responsibility for the consequences of using it,
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or for whether it serves any particular purpose or works at all, unless he
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or she says so in writing.
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Swiss Ephemeris is made available by its authors under a dual licensing
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system. The software developer, who uses any part of Swiss Ephemeris
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in his or her software, must choose between one of the two license models,
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which are
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a) GNU public license version 2 or later
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b) Swiss Ephemeris Professional License
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The choice must be made before the software developer distributes software
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containing parts of Swiss Ephemeris to others, and before any public
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service using the developed software is activated.
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If the developer choses the GNU GPL software license, he or she must fulfill
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the conditions of that license, which includes the obligation to place his
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or her whole software project under the GNU GPL or a compatible license.
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See http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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If the developer choses the Swiss Ephemeris Professional license,
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he must follow the instructions as found in http://www.astro.com/swisseph/
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and purchase the Swiss Ephemeris Professional Edition from Astrodienst
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and sign the corresponding license contract.
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The License grants you the right to use, copy, modify and redistribute
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Swiss Ephemeris, but only under certain conditions described in the License.
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Among other things, the License requires that the copyright notices and
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this notice be preserved on all copies.
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Authors of the Swiss Ephemeris: Dieter Koch and Alois Treindl
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The authors of Swiss Ephemeris have no control or influence over any of
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the derived works, i.e. over software or services created by other
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programmers which use Swiss Ephemeris functions.
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The names of the authors or of the copyright holder (Astrodienst) must not
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be used for promoting any software, product or service which uses or contains
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the Swiss Ephemeris. This copyright notice is the ONLY place where the
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names of the authors can legally appear, except in cases where they have
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given special permission in writing.
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The trademarks 'Swiss Ephemeris' and 'Swiss Ephemeris inside' may be used
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for promoting such software, products or services.
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*/
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@ -1,25 +0,0 @@
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lib_LTLIBRARIES = libswe-2.0.la
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libswe_2_0_la_SOURCES = swedate.c swehouse.c swejpl.c swemmoon.c swemplan.c swepcalc.c sweph.c swepdate.c swephlib.c swecl.c swehel.c
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libswe_2_0_la_CFLAGS = $(CFLAGS) -Wall
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libswe_2_0_la_LIBADD = $(LIBS)
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EXTRA_DIST = \
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LICENSE \
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README \
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swemptab.c \
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swemptab.h \
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swedate.h \
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swedll.h \
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swehouse.h \
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swejpl.h \
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swenut2000a.h \
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sweodef.h \
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swepcalc.h \
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swephexp.h \
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sweph.h \
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swephlib.h \
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fixstars.cat \
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sedeltat.txt.inactive \
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sefstars.txt \
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seorbel.txt \
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$(NULL)
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@ -1,6 +0,0 @@
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This directory holds the Swiss Ephemeris library. It can be downloaded from
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http://www.astro.com/swisseph/ and used via the GPL licence.
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The original directory is stripped down, and the unneded files are deleted (like
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the swetest source and such. In the future, even the library may be optimised
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further.
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File diff suppressed because it is too large
Load Diff
@ -1,13 +0,0 @@
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# This file allows to make new Delta T known to the Swiss Ephemeris.
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# Note, these values override the values given in the internal Delta T
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# table of the Swiss Ephemeris.
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#
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# If you want to use this file, change its file name and remove the
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# the extension '.inactive'. As soon as you do so, the values below
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# will be used, i.e. they will override the internal Delta T values
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# of the Swiss Ephemeris.
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#
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# Format: year and seconds (decimal)
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2007 65.15
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2008 65.46
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2009 65.78
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File diff suppressed because it is too large
Load Diff
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# Orbital elements of ficticious planets
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# 27 Jan. 2000
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#
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# This file is part of the Swiss Ephemeris, from Version 1.52 on.
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#
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# Warning! These planets do not exist!
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#
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# The user can add his or her own elements.
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# 960 is the maximum number of ficticious planets.
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#
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# The elements order is as follows:
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# 1. epoch of elements (Julian day)
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# 2. equinox (Julian day or "J1900" or "B1950" or "J2000")
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# 3. mean anomaly at epoch
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# 4. semi-axis
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# 5. eccentricity
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# 6. argument of perihelion (ang. distance of perihelion from node)
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# 7. ascending node
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# 8. inclination
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# 9. name of planet
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#
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# use '#' for comments
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# to compute a body with swe_calc(), use planet number
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# ipl = SE_FICT_OFFSET_1 + number_of_elements_set,
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# e.g. number of Kronos is ipl = 39 + 4 = 43
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#
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# Witte/Sieggruen planets, refined by James Neely
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J1900, J1900, 163.7409, 40.99837, 0.00460, 171.4333, 129.8325, 1.0833, Cupido # 1
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J1900, J1900, 27.6496, 50.66744, 0.00245, 148.1796, 161.3339, 1.0500, Hades # 2
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J1900, J1900, 165.1232, 59.21436, 0.00120, 299.0440, 0.0000, 0.0000, Zeus # 3
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J1900, J1900, 169.0193, 64.81690, 0.00305, 208.8801, 0.0000, 0.0000, Kronos # 4
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J1900, J1900, 138.0533, 70.29949, 0.00000, 0.0000, 0.0000, 0.0000, Apollon # 5
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J1900, J1900, 351.3350, 73.62765, 0.00000, 0.0000, 0.0000, 0.0000, Admetos # 6
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J1900, J1900, 55.8983, 77.25568, 0.00000, 0.0000, 0.0000, 0.0000, Vulcanus # 7
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J1900, J1900, 165.5163, 83.66907, 0.00000, 0.0000, 0.0000, 0.0000, Poseidon # 8
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#
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# Isis-Transpluto; elements from "Die Sterne" 3/1952, p. 70ff.
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# Strubell does not give an equinox. 1945 is taken in order to
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# reproduce the as best as ASTRON ephemeris. (This is a strange
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# choice, though.)
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# The epoch according to Strubell is 1772.76.
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# 1772 is a leap year!
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# The fraction is counted from 1 Jan. 1772
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2368547.66, 2431456.5, 0.0, 77.775, 0.3, 0.7, 0, 0, Isis-Transpluto # 9
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# Nibiru, elements from Christian Woeltge, Hannover
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1856113.380954, 1856113.380954, 0.0, 234.8921, 0.981092, 103.966, -44.567, 158.708, Nibiru # 10
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# Harrington, elements from Astronomical Journal 96(4), Oct. 1988
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2374696.5, J2000, 0.0, 101.2, 0.411, 208.5, 275.4, 32.4, Harrington # 11
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# according to W.G. Hoyt, "Planets X and Pluto", Tucson 1980, p. 63
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2395662.5, 2395662.5, 34.05, 36.15, 0.10761, 284.75, 0, 0, Leverrier (Neptune) # 12
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2395662.5, 2395662.5, 24.28, 37.25, 0.12062, 299.11, 0, 0, Adams (Neptune) # 13
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2425977.5, 2425977.5, 281, 43.0, 0.202, 204.9, 0, 0, Lowell (Pluto) # 14
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2425977.5, 2425977.5, 48.95, 55.1, 0.31, 280.1, 100, 15, Pickering (Pluto) # 15
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# intramercurian hypothetical Vulcan acc. to L.H. Weston
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J1900,JDATE, 252.8987988 + 707550.7341 * T, 0.13744, 0.019, 322.212069+1670.056*T, 47.787931-1670.056*T, 7.5, Vulcan # 16
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# Selena/White Moon
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J2000,JDATE, 242.2205555 + 5143.5418158 * T, 0.05280098949, 0.0, 0.0, 0.0, 0.0, Selena/White Moon, geo # 17
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# Hypothetical planet Proserpina, according to http://www.geocities.com/Hollywood/Academy/7519/proserpina.html
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# J1900, 170.73 + 51.05 * T
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J1900,JDATE, 170.73, 79.225630, 0, 0, 0, 0, Proserpina #18
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# Waldemath's Second Earth Moon
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# Elements were derived by D.Koch from Waldemaths original elements as given in
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# David Walters' book on Vulcan. They differ from Solar Fire (Graham Dawsons)
|
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# elements, which are based on the assumption that the "mean longitude" given
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# by Waldemath is an observation (a true longitude)
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# Neither Swisseph nor Solar fire elements agree with Delphine Jay's ephemeris,
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# which is obviously wrong.
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2414290.95827875,2414290.95827875, 70.3407215 + 109023.2634989 * T, 0.0068400705250028, 0.1587, 8.14049594 + 2393.47417444 * T, 136.24878256 - 1131.71719709 * T, 2.5, Waldemath, geo # 19
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#
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# The following elements are for test only
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# (Selena without T)
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J2000,JDATE, 242.2205555, 0.05279142865925, 0.0, 0.0, 0.0, 0.0, Selena/White Moon, geo # 17
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# (Selena with T, gives exactly the same position)
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J2000,JDATE, 242.2205555 + 5143.5418158 * T, 0.05279142865925, 0.0, 0.0, 0.0, 0.0, Selena/White Moon with T Terms, geo # 17
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J2000, JDATE, 174.794787 + 149472.5157715 * T, 0.38709831, 0.20563175 + 0.000020406 * T, 29.125226 + 0.3702885 * T, 48.330893 + 1.186189 * T, 7.004986 + 0.0018215 * T, Mercury elem. for equ. of date # 18
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J2000, J2000, 174.794787 + 149472.5157715 * T, 0.38709831, 0.20563175 + 0.000020406 * T, 29.125226 + 0.2842872 * T, 48.330893 - 0.1254229 * T, 7.004986 - 0.0059516 * T, Mercury Test J2000 Elements# 18
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File diff suppressed because it is too large
Load Diff
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/*********************************************************
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$Header: /home/dieter/sweph/RCS/swedate.c,v 1.75 2009/04/08 07:17:29 dieter Exp $
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version 15-feb-89 16:30
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swe_date_conversion()
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swe_revjul()
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swe_julday()
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************************************************************/
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/* Copyright (C) 1997 - 2008 Astrodienst AG, Switzerland. All rights reserved.
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License conditions
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------------------
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This file is part of Swiss Ephemeris.
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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 public license version 2 or later
|
||||
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 GNU GPL 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 GNU GPL or a compatible license.
|
||||
See http://www.gnu.org/licenses/old-licenses/gpl-2.0.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.
|
||||
*/
|
||||
|
||||
/*
|
||||
swe_date_conversion():
|
||||
This function converts some date+time input {d,m,y,uttime}
|
||||
into the Julian day number tjd.
|
||||
The function checks that the input is a legal combination
|
||||
of dates; for illegal dates like 32 January 1993 it returns ERR
|
||||
but still converts the date correctly, i.e. like 1 Feb 1993.
|
||||
The function is usually used to convert user input of birth data
|
||||
into the Julian day number. Illegal dates should be notified to the user.
|
||||
|
||||
Be aware that we always use astronomical year numbering for the years
|
||||
before Christ, not the historical year numbering.
|
||||
Astronomical years are done with negative numbers, historical
|
||||
years with indicators BC or BCE (before common era).
|
||||
Year 0 (astronomical) = 1 BC historical.
|
||||
year -1 (astronomical) = 2 BC
|
||||
etc.
|
||||
Many users of Astro programs do not know about this difference.
|
||||
|
||||
Return: OK or ERR (for illegal date)
|
||||
*********************************************************/
|
||||
|
||||
# include "swephexp.h"
|
||||
# include "sweph.h"
|
||||
|
||||
static TLS AS_BOOL init_leapseconds_done = FALSE;
|
||||
|
||||
|
||||
int CALL_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 */
|
||||
|
||||
/*************** swe_julday ********************************************
|
||||
* This function returns the absolute Julian day number (JD)
|
||||
* for a given calendar date.
|
||||
* The arguments are a calendar date: day, month, year as integers,
|
||||
* hour as double with decimal fraction.
|
||||
* If gregflag = SE_GREG_CAL (1), Gregorian calendar is assumed,
|
||||
* if gregflag = SE_JUL_CAL (0),Julian calendar is assumed.
|
||||
|
||||
The Julian day number is a system of numbering all days continously
|
||||
within the time range of known human history. It should be familiar
|
||||
to every astrological or astronomical programmer. The time variable
|
||||
in astronomical theories is usually expressed in Julian days or
|
||||
Julian centuries (36525 days per century) relative to some start day;
|
||||
the start day is called 'the epoch'.
|
||||
The Julian day number is a double representing the number of
|
||||
days since JD = 0.0 on 1 Jan -4712, 12:00 noon (in the Julian calendar).
|
||||
|
||||
Midnight has always a JD with fraction .5, because traditionally
|
||||
the astronomical day started at noon. This was practical because
|
||||
then there was no change of date during a night at the telescope.
|
||||
From this comes also the fact the noon ephemerides were printed
|
||||
before midnight ephemerides were introduced early in the 20th century.
|
||||
|
||||
NOTE: The Julian day number must not be confused with the Julian
|
||||
calendar system.
|
||||
|
||||
Be aware the we always use astronomical year numbering for the years
|
||||
before Christ, not the historical year numbering.
|
||||
Astronomical years are done with negative numbers, historical
|
||||
years with indicators BC or BCE (before common era).
|
||||
Year 0 (astronomical) = 1 BC
|
||||
year -1 (astronomical) = 2 BC
|
||||
etc.
|
||||
|
||||
Original author: Marc Pottenger, Los Angeles.
|
||||
with bug fix for year < -4711 15-aug-88 by Alois Treindl
|
||||
(The parameter sequence m,d,y still indicates the US origin,
|
||||
be careful because the similar function date_conversion() uses
|
||||
other parameter sequence and also Astrodienst relative juldate.)
|
||||
|
||||
References: Oliver Montenbruck, Grundlagen der Ephemeridenrechnung,
|
||||
Verlag Sterne und Weltraum (1987), p.49 ff
|
||||
|
||||
related functions: swe_revjul() reverse Julian day number: compute the
|
||||
calendar date from a given JD
|
||||
date_conversion() includes test for legal date values
|
||||
and notifies errors like 32 January.
|
||||
****************************************************************/
|
||||
|
||||
double CALL_CONV swe_julday(int year, int month, int day, double hour, int gregflag)
|
||||
{
|
||||
double jd;
|
||||
double u,u0,u1,u2;
|
||||
u = year;
|
||||
if (month < 3) u -=1;
|
||||
u0 = u + 4712.0;
|
||||
u1 = month + 1.0;
|
||||
if (u1 < 4) u1 += 12.0;
|
||||
jd = floor(u0*365.25)
|
||||
+ floor(30.6*u1+0.000001)
|
||||
+ day + hour/24.0 - 63.5;
|
||||
if (gregflag == SE_GREG_CAL) {
|
||||
u2 = floor(fabs(u) / 100) - floor(fabs(u) / 400);
|
||||
if (u < 0.0) u2 = -u2;
|
||||
jd = jd - u2 + 2;
|
||||
if ((u < 0.0) && (u/100 == floor(u/100)) && (u/400 != floor(u/400)))
|
||||
jd -=1;
|
||||
}
|
||||
return jd;
|
||||
}
|
||||
|
||||
/*** swe_revjul ******************************************************
|
||||
swe_revjul() is the inverse function to swe_julday(), see the description
|
||||
there.
|
||||
Arguments are julian day number, calendar flag (0=julian, 1=gregorian)
|
||||
return values are the calendar day, month, year and the hour of
|
||||
the day with decimal fraction (0 .. 23.999999).
|
||||
|
||||
Be aware the we use astronomical year numbering for the years
|
||||
before Christ, not the historical year numbering.
|
||||
Astronomical years are done with negative numbers, historical
|
||||
years with indicators BC or BCE (before common era).
|
||||
Year 0 (astronomical) = 1 BC historical year
|
||||
year -1 (astronomical) = 2 BC historical year
|
||||
year -234 (astronomical) = 235 BC historical year
|
||||
etc.
|
||||
|
||||
Original author Mark Pottenger, Los Angeles.
|
||||
with bug fix for year < -4711 16-aug-88 Alois Treindl
|
||||
*************************************************************************/
|
||||
void CALL_CONV swe_revjul (double jd, int gregflag,
|
||||
int *jyear, int *jmon, int *jday, double *jut)
|
||||
{
|
||||
double u0,u1,u2,u3,u4;
|
||||
u0 = jd + 32082.5;
|
||||
if (gregflag == SE_GREG_CAL) {
|
||||
u1 = u0 + floor (u0/36525.0) - floor (u0/146100.0) - 38.0;
|
||||
if (jd >= 1830691.5) u1 +=1;
|
||||
u0 = u0 + floor (u1/36525.0) - floor (u1/146100.0) - 38.0;
|
||||
}
|
||||
u2 = floor (u0 + 123.0);
|
||||
u3 = floor ( (u2 - 122.2) / 365.25);
|
||||
u4 = floor ( (u2 - floor (365.25 * u3) ) / 30.6001);
|
||||
*jmon = (int) (u4 - 1.0);
|
||||
if (*jmon > 12) *jmon -= 12;
|
||||
*jday = (int) (u2 - floor (365.25 * u3) - floor (30.6001 * u4));
|
||||
*jyear = (int) (u3 + floor ( (u4 - 2.0) / 12.0) - 4800);
|
||||
*jut = (jd - floor (jd + 0.5) + 0.5) * 24.0;
|
||||
}
|
||||
|
||||
/* 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 CALL_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;
|
||||
}
|
||||
|
||||
/*
|
||||
* functions for the handling of UTC
|
||||
*/
|
||||
|
||||
/* Leap seconds were inserted at the end of the following days:*/
|
||||
#define NLEAP_SECONDS 26
|
||||
#define NLEAP_SECONDS_SPACE 100
|
||||
static TLS int leap_seconds[NLEAP_SECONDS_SPACE] = {
|
||||
19720630,
|
||||
19721231,
|
||||
19731231,
|
||||
19741231,
|
||||
19751231,
|
||||
19761231,
|
||||
19771231,
|
||||
19781231,
|
||||
19791231,
|
||||
19810630,
|
||||
19820630,
|
||||
19830630,
|
||||
19850630,
|
||||
19871231,
|
||||
19891231,
|
||||
19901231,
|
||||
19920630,
|
||||
19930630,
|
||||
19940630,
|
||||
19951231,
|
||||
19970630,
|
||||
19981231,
|
||||
20051231,
|
||||
20081231,
|
||||
20120630,
|
||||
20150630,
|
||||
0 /* keep this 0 as end mark */
|
||||
};
|
||||
#define J1972 2441317.5
|
||||
#define NLEAP_INIT 10
|
||||
|
||||
/* Read additional leap second dates from external file, if given.
|
||||
*/
|
||||
static int init_leapsec(void)
|
||||
{
|
||||
FILE *fp;
|
||||
int ndat, ndat_last;
|
||||
int tabsiz = 0;
|
||||
int i;
|
||||
char s[AS_MAXCH];
|
||||
char *sp;
|
||||
if (!init_leapseconds_done) {
|
||||
init_leapseconds_done = TRUE;
|
||||
tabsiz = NLEAP_SECONDS;
|
||||
ndat_last = leap_seconds[NLEAP_SECONDS - 1];
|
||||
/* no error message if file is missing */
|
||||
if ((fp = swi_fopen(-1, "seleapsec.txt", swed.ephepath, NULL)) == NULL)
|
||||
return NLEAP_SECONDS;
|
||||
while(fgets(s, AS_MAXCH, fp) != NULL) {
|
||||
sp = s;
|
||||
while (*sp == ' ' || *sp == '\t') sp++;
|
||||
sp++;
|
||||
if (*sp == '#' || *sp == '\n')
|
||||
continue;
|
||||
ndat = atoi(s);
|
||||
if (ndat <= ndat_last)
|
||||
continue;
|
||||
/* table space is limited. no error msg, if exceeded */
|
||||
if (tabsiz >= NLEAP_SECONDS_SPACE)
|
||||
return tabsiz;
|
||||
leap_seconds[tabsiz] = ndat;
|
||||
tabsiz++;
|
||||
}
|
||||
if (tabsiz > NLEAP_SECONDS) leap_seconds[tabsiz] = 0; /* end mark */
|
||||
fclose(fp);
|
||||
return tabsiz;
|
||||
}
|
||||
/* find table size */
|
||||
tabsiz = 0;
|
||||
for (i = 0; i < NLEAP_SECONDS_SPACE; i++) {
|
||||
if (leap_seconds[i] == 0)
|
||||
break;
|
||||
else
|
||||
tabsiz++;
|
||||
}
|
||||
return tabsiz;
|
||||
}
|
||||
|
||||
/*
|
||||
* 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 CALL_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_ex(dret[1], -1, NULL);
|
||||
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_ex(tjd_ut1, -1, NULL) * 86400.0;
|
||||
if (d - (double) nleap - 32.184 >= 1.0) {
|
||||
dret[1] = tjd_ut1 + dhour / 24.0;
|
||||
dret[0] = dret[1] + swe_deltat_ex(dret[1], -1, NULL);
|
||||
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_ex(tjd_et, -1, NULL);
|
||||
tjd_ut1 = tjd_et - swe_deltat_ex(tjd_et - d, -1, NULL);
|
||||
tjd_ut1 = tjd_et - swe_deltat_ex(tjd_ut1, -1, NULL);
|
||||
dret[0] = tjd_et;
|
||||
dret[1] = tjd_ut1;
|
||||
return OK;
|
||||
}
|
||||
|
||||
/*
|
||||
* 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 CALL_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_ex(tjd_et, -1, NULL);
|
||||
tjd_ut = tjd_et - swe_deltat_ex(tjd_et - d, -1, NULL);
|
||||
tjd_ut = tjd_et - swe_deltat_ex(tjd_ut, -1, NULL);
|
||||
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_ex(tjd_et, -1, NULL);
|
||||
d = swe_deltat_ex(tjd_et - d, -1, NULL);
|
||||
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: tjd_ut Julian day number, universal time (UT1).
|
||||
* 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 CALL_CONV swe_jdut1_to_utc(double tjd_ut, int32 gregflag, int32 *iyear, int32 *imonth, int32 *iday, int32 *ihour, int32 *imin, double *dsec)
|
||||
{
|
||||
double tjd_et = tjd_ut + swe_deltat_ex(tjd_ut, -1, NULL);
|
||||
swe_jdet_to_utc(tjd_et, gregflag, iyear, imonth, iday, ihour, imin, dsec);
|
||||
}
|
||||
|
||||
@ -1,82 +0,0 @@
|
||||
/*********************************************************
|
||||
$Header: /home/dieter/sweph/RCS/swedate.h,v 1.74 2008/06/16 10:07:20 dieter Exp $
|
||||
version 15-feb-89 16:30
|
||||
*********************************************************/
|
||||
|
||||
/* Copyright (C) 1997 - 2008 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 public license version 2 or later
|
||||
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 GNU GPL 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 GNU GPL or a compatible license.
|
||||
See http://www.gnu.org/licenses/old-licenses/gpl-2.0.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.
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#ifndef _SWEDLL_H
|
||||
extern EXP32 int swe_date_conversion (
|
||||
int y , int m , int d , /* year, month, day */
|
||||
double utime, /* universal time in hours (decimal) */
|
||||
char c, /* calendar g[regorian]|j[ulian]|a[stro = greg] */
|
||||
double *tgmt);
|
||||
|
||||
extern EXP32 double *swe_julday(
|
||||
int year, int month, int day, double hour,
|
||||
int gregflag);
|
||||
|
||||
extern EXP32 void swe_revjul (
|
||||
double jd,
|
||||
int gregflag,
|
||||
int *jyear, int *jmon, int *jday, double *jut);
|
||||
#endif
|
||||
#ifdef __cplusplus
|
||||
} /* extern C */
|
||||
#endif
|
||||
@ -1,535 +0,0 @@
|
||||
/* SWISSEPH
|
||||
* $Header: /home/dieter/sweph/RCS/swedll.h,v 1.75 2009/04/08 07:19:08 dieter Exp $
|
||||
*
|
||||
* Windows DLL interface imports for the Astrodienst SWISSEPH package
|
||||
*
|
||||
|
||||
**************************************************************/
|
||||
/* Copyright (C) 1997 - 2008 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 public license version 2 or later
|
||||
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 GNU GPL 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 GNU GPL or a compatible license.
|
||||
See http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
|
||||
|
||||
If the developer choses the Swiss Ephemeris Professional license,
|
||||
he must follow the instructions as found in http://www.astro.com/swisseph/
|
||||