bodysolver.hxx

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/*
 * bodysolver.hxx - given a location on earth and a time of day/date,
 *                  find the number of seconds to various solar system body
 *                  positions.
 *
 * Written by Curtis Olson, started September 2003.
 *
 * Copyright (C) 2003  Curtis L. Olson  - http://www.flightgear.org/~curt
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * $Id$
 */
 
 
#ifndef _BODYSOLVER_HXX
#define _BODYSOLVER_HXX
 
 
#ifndef __cplusplus                                                          
# error This library requires C++
#endif                                   
 
#include <simgear/compiler.h>
 
#include <ctime>
 
class SGGeod;

time_t fgTimeSecondsUntilBodyAngle( time_t cur_time,
                                   const SGGeod& loc,
                                   double target_angle_deg,
                                   bool ascending,
                                   bool sun_not_moon );

void fgBodyPositionGST(double gst, double& lon, double& lat, bool sun_not_moon);
 
 
#endif /* _BODYSOLVER_HXX */