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-rw-r--r--src/solar.h107
1 files changed, 0 insertions, 107 deletions
diff --git a/src/solar.h b/src/solar.h
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--- a/src/solar.h
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-/**
- * 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
-