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Diffstat (limited to '')
-rw-r--r-- | src/solar.h | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/src/solar.h b/src/solar.h deleted file mode 100644 index 7afc78f..0000000 --- a/src/solar.h +++ /dev/null @@ -1,107 +0,0 @@ -/** - * Copyright © 2016 Mattias Andrée <maandree@member.fsf.org> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - - -/** - * Approximate apparent size of the Sun in degrees. - */ -#define SOLAR_APPARENT_RADIUS (32.0 / 60.0) - - -/** - * The Sun's elevation at sunset and sunrise, measured in degrees. - */ -#define SOLAR_ELEVATION_SUNSET_SUNRISE (0.0) - -/** - * The Sun's elevation at civil dusk and civil dawn, measured in degrees. - */ -#define SOLAR_ELEVATION_CIVIL_DUSK_DAWN (-6.0) - -/** - * The Sun's elevation at nautical dusk and nautical dawn, measured in degrees. - */ -#define SOLAR_ELEVATION_NAUTICAL_DUSK_DAWN (-12.0) - -/** - * The Sun's elevation at astronomical dusk and astronomical dawn, measured in degrees. - */ -#define SOLAR_ELEVATION_ASTRONOMICAL_DUSK_DAWN (-18.0) - - -/** - * Test whether it is twilight. - * - * @param ELEV:double The current elevation. - * @return 1 if is twilight, 0 otherwise. - */ -#define SOLAR_IS_TWILIGHT(ELEV) ((-18.0 <= (ELEV)) && ((ELEV) <= 0.0)) - -/** - * Test whether it is civil twilight. - * - * @param ELEV:double The current elevation. - * @return 1 if is civil twilight, 0 otherwise. - */ -#define SOLAR_IS_CIVIL_TWILIGHT(ELEV) ((-6.0 <= (ELEV)) && ((ELEV) <= 0.0)) - -/** - * Test whether it is nautical twilight. - * - * @param ELEV:double The current elevation. - * @return 1 if is nautical twilight, 0 otherwise. - */ -#define SOLAR_IS_NAUTICAL_TWILIGHT(ELEV) ((-12.0 <= (ELEV)) && ((ELEV) <= -6.0)) - -/** - * Test whether it is astronomical twilight. - * - * @param ELEV:double The current elevation. - * @return 1 if is astronomical twilight, 0 otherwise. - */ -#define SOLAR_IS_ASTRONOMICAL_TWILIGHT(ELEV) ((-18.0 <= (ELEV)) && ((ELEV) <= -12.0)) - - - -/** - * Calculates the Sun's elevation as apparent. - * from a geographical position. - * - * @param latitude The latitude in degrees northwards from - * the equator, negative for southwards. - * @param longitude The longitude in degrees eastwards from - * Greenwich, negative for westwards. - * @return The Sun's apparent elevation as seen, right now, - * from the specified position, measured in degrees. - * - * @throws 0 On success. - * @throws Any error specified for clock_gettime(3) on error. - */ -double solar_elevation(double latitude, double longitude); - - -/** - * Exit if time the is before year 0 in J2000. - * - * @return 0 on success, -1 on error. - */ -#if defined(TIMETRAVELLER) -int check_timetravel(void); -#else -# define check_timetravel(_) 0 -#endif - |