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- Committer: Bazaar Package Importer
- Author(s): Martin Zobel-Helas
- Date: 2004-11-19 22:55:21 UTC
- Revision ID: james.westby@ubuntu.com-20041119225521-pmuy6kl327g5wevc
Tags: upstream-0.6
Import upstream version 0.6
added
removed
CalcEphem.h
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#ifndef CALC_EPHEM_H
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#define CALC_EPHEM_H
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/* (C) Mike Henderson <mghenderson@lanl.gov>.
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*
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* I've added function prototypes, a couple of data to the CTrans
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* structure, converted standard data types to their glib counterparts
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* (as compared to original wmMoonClock code), and piped the whole
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* thing through indent.
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*
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* josh buhl <jbuhl@users.sourceforge.net>
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*/
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#include <glib.h>
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#include <stdio.h>
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#include <math.h>
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#define DegPerRad 57.29577951308232087680
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#define RadPerDeg 0.01745329251994329576
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typedef struct Vector {
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gdouble x;
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gdouble y;
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gdouble z;
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} Vector;
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typedef struct Position {
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gdouble x;
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gdouble y;
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gdouble z;
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} Position;
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typedef struct CTrans {
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gdouble UT; /* Universal Time (in decimal hours) */
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gint year; /* 2 digit year */
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gint month; /* 2 digit month of year */
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gint day; /* 2 digit day of month */
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gint doy; /* 3 digit Day Of Year */
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gint dow; /* 1 digit day of week */
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gchar dowstr[80]; /* Day of week String (e.g. "Sun") */
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gdouble gmst; /* Greenwich Mean Sidereal Time */
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gdouble eccentricity; /* Eccentricity of Earth-Sun orbit */
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gdouble epsilon; /* Obliquity of the ecliptic (in radians) */
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gdouble lambda_sun; /* Ecliptic Long. of Sun (in radians) */
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gdouble earth_sun_dist; /* Earth-Sun distance (in units of earth radii) */
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gdouble RA_sun; /* Right Ascention of Sun (in degrees) */
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gdouble DEC_sun; /* Declination of Sun (in degrees) */
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Vector Sun; /* direction of Sun in GEI system (unit vector) */
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Vector EcPole; /* direction of Ecliptic Pole in GEI system (unit vector) */
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gdouble psi; /* Geodipole tilt angle (in radians) */
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gdouble Dipole_Gcolat; /* Geographic colat of centered dipole axis (deg.) */
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gdouble Dipole_Glon; /* Geographic long. of centered dipole axis (deg.) */
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gdouble RA_moon; /* Right Ascention of Moon (in degrees) */
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gdouble DEC_moon; /* Declination of Moon (in degrees) */
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gdouble MoonPhase; /* The Phase of the Moon (in days) */
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gdouble MoonAge; /* Age of Moon in Days */
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gdouble EarthMoonDistance; /* Distance between the Earth and Moon (in earth-radii) */
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gdouble Glat; /* Geographic Latitude of Observer */
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gdouble Glon; /* Geographic Longitude of Observer */
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gdouble h_moon; /* Altitude of Moon (in degrees) */
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gdouble A_moon; /* Azimuth of Moon (in degrees) */
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gint Visible; /* Whether or not moon is above horizon */
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/* Additional Data for glunarclock */
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gdouble SinGlat; /* data calc. in CalcEphem, used in MoonRise */
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gdouble CosGlat; /* data calc. in CalcEphem, used in MoonRise */
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gdouble LAT; /* Local Apparent Time (sundial time) */
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gdouble LMT; /* Local Mean Time (eqn of time corrected LAT) */
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gdouble LST; /* Local Standard Time */
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/* end additional data */
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} CTrans;
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void CalcEphem(glong date, gdouble UT, CTrans * c);
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gdouble jd(gint ny, gint nm, gint nd, gdouble UT);
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gdouble hour24(gdouble hour);
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gdouble angle2pi(gdouble angle);
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#endif /* CALC_EPHEM_H */
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