/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Copyright (C) 2000 - 2005 Liam Girdwood
*/
#ifndef _LN_HYPERBOLIC_MOTION_H
#define _LN_HYPERBOLIC_MOTION_H
#include <libnova/ln_types.h>
#ifdef __cplusplus
extern "C" {
#endif
/*! \defgroup hyperbolic Hyperbolic Motion
*
* Functions relating to the Hyperbolic motion of bodies.
*
* All angles are expressed in degrees.
*/
/*! \fn double ln_solve_hyp_barker (double Q1, double G, double t);
* \brief Solve Barkers equation.
* \ingroup hyperbolic
*/
double LIBNOVA_EXPORT ln_solve_hyp_barker (double Q1, double G, double t);
/*! \fn double ln_get_hyp_true_anomaly (double q, double e, double t);
* \ingroup hyperbolic
* \brief Calculate the true anomaly.
*/
double LIBNOVA_EXPORT ln_get_hyp_true_anomaly (double q, double e, double t);
/*! \fn double ln_get_hyp_radius_vector (double q, double e, double t);
* \ingroup hyperbolic
* \brief Calculate the radius vector.
*/
double LIBNOVA_EXPORT ln_get_hyp_radius_vector (double q, double e, double t);
/*! \fn void ln_get_hyp_geo_rect_posn (struct ln_hyp_orbit* orbit, double JD, struct ln_rect_posn* posn);
* \ingroup hyperbolic
* \brief Calculate an objects rectangular geocentric position.
*/
void LIBNOVA_EXPORT ln_get_hyp_geo_rect_posn (struct ln_hyp_orbit* orbit, double JD, struct ln_rect_posn* posn);
/*! \fn void ln_get_hyp_helio_rect_posn (struct ln_hyp_orbit* orbit, double JD, struct ln_rect_posn* posn);
* \ingroup hyperbolic
* \brief Calculate an objects rectangular heliocentric position.
*/
void LIBNOVA_EXPORT ln_get_hyp_helio_rect_posn (struct ln_hyp_orbit* orbit, double JD, struct ln_rect_posn* posn);
/*!
* \fn void ln_get_hyp_body_equ_coords (double JD, struct ln_hyp_orbit * orbit, struct ln_equ_posn * posn)
* \ingroup hyperbolic
* \brief Calculate a bodies equatorial coordinates.
*/
void LIBNOVA_EXPORT ln_get_hyp_body_equ_coords (double JD, struct ln_hyp_orbit * orbit, struct ln_equ_posn * posn);
/*!
* \fn double ln_get_hyp_body_earth_dist (double JD, struct ln_hyp_orbit * orbit)
* \ingroup hyperbolic
* \brief Calculate the distance between a body and the Earth.
*/
double LIBNOVA_EXPORT ln_get_hyp_body_earth_dist (double JD, struct ln_hyp_orbit * orbit);
/*!
* \fn double ln_get_hyp_body_solar_dist (double JD, struct ln_hyp_orbit * orbit)
* \ingroup hyperbolic
* \brief Calculate the distance between a body and the Sun.
*/
double LIBNOVA_EXPORT ln_get_hyp_body_solar_dist (double JD, struct ln_hyp_orbit * orbit);
/*! \fn double ln_get_hyp_body_phase_angle (double JD, struct ln_hyp_orbit * orbit);
* \ingroup hyperbolic
* \brief Calculate the phase angle of the body.
*/
double LIBNOVA_EXPORT ln_get_hyp_body_phase_angle (double JD, struct ln_hyp_orbit * orbit);
/*! \fn double ln_get_hyp_body_elong (double JD, struct ln_hyp_orbit * orbit);
* \ingroup hyperbolic
* \brief Calculate the bodies elongation to the Sun.
*/
double LIBNOVA_EXPORT ln_get_hyp_body_elong (double JD, struct ln_hyp_orbit * orbit);
/*! \fn double ln_get_hyp_body_rst (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, struct ln_rst_time * rst);
* \brief Calculate the time of rise, set and transit for a body with a hyperbolic orbit.
* \ingroup hyperbolic
*/
int LIBNOVA_EXPORT ln_get_hyp_body_rst (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, struct ln_rst_time * rst);
/*! \fn double ln_get_hyp_body_rst_horizon (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, double horizon, struct ln_rst_time * rst);
* \brief Calculate the time of rise, set and transit for a body with a hyperbolic orbit.
* \ingroup hyperbolic
*/
int LIBNOVA_EXPORT ln_get_hyp_body_rst_horizon (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, double horizon, struct ln_rst_time * rst);
/*! \fn double ln_get_hyp_body_next_rst (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, struct ln_rst_time * rst);
* \brief Calculate the time of rise, set and transit for a body with an hyperbolic orbit.
* \ingroup hyperbolic
*/
int LIBNOVA_EXPORT ln_get_hyp_body_next_rst (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, struct ln_rst_time * rst);
/*! \fn double ln_get_hyp_body_next_rst_horizon (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, double horizon, struct ln_rst_time * rst);
* \brief Calculate the time of rise, set and transit for a body with an hyperbolic orbit.
* \ingroup hyperbolic
*/
int LIBNOVA_EXPORT ln_get_hyp_body_next_rst_horizon (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, double horizon, struct ln_rst_time * rst);
/*! \fn double ln_get_hyp_body_next_rst_horizon_future (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, double horizon, int day_limit, struct ln_rst_time * rst);
* \brief Calculate the time of rise, set and transit for a body with an hyperbolic orbit.
* \ingroup hyperbolic
*/
int LIBNOVA_EXPORT ln_get_hyp_body_next_rst_horizon_future (double JD, struct ln_lnlat_posn * observer, struct ln_hyp_orbit * orbit, double horizon, int day_limit, struct ln_rst_time * rst);
#ifdef __cplusplus
};
#endif
#endif