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/***********************************************************************
* link.h : Definition of the link. A link is a pair of stars and
* facilities to access extra information.
***********************************************************************/
/***********************************************************************
* This file is part of SpaceChart.
* Copyright (C) 1999 Miguel Coca <e970095@zipi.fi.upm.es>
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
***********************************************************************/
#ifndef _INCLUDE_LINK_H_
#define _INCLUDE_LINK_H_
#include "starmap.h"
#include "star.h"
typedef struct st_link link_t;
link_t *link_new( star_t *a, star_t *b );
void link_get_stars( link_t* link, star_t **a, star_t **b );
double link_get_distance( link_t* link );
void link_get_middle( link_t* link, coords_3d_t *middle );
void link_destroy( link_t* link );
#endif
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