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roadmap_sunrise.h
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roadmap_sunrise.h
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/* roadmap_sunrise.h - Calculate sunrise/sunset time
*
* LICENSE:
*
* Copyright 2003 Eric Domazlicky
*
* This file is part of RoadMap.
*
* RoadMap 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 2 of the License, or
* (at your option) any later version.
*
* RoadMap 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 RoadMap; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* DESCRIPTION:
*
* roadmap_sunrise() computes the time for sunrise at the specified location.
*
* roadmap_sunset() computes the time for sunset at the specified location.
*
* position: the longitude/latitude of the position considered.
*
* The function returns -1 on failure or the GMT time on success.
*
* LIMITATIONS:
*
* These functions won't work for latitudes at 63 and above or -63 and
* below.
*/
#ifndef INCLUDE__ROADMAP_SUNRISE__H
#define INCLUDE__ROADMAP_SUNRISE__H
#include <time.h>
#include "roadmap.h"
#include "roadmap_gps.h"
time_t roadmap_sunrise (const RoadMapGpsPosition *position, time_t now);
time_t roadmap_sunset (const RoadMapGpsPosition *position, time_t now);
#endif // INCLUDE__ROADMAP_SUNRISE_H