libnova  v 0.15.0
angular_separation.h
1 /*
2  * This library is free software; you can redistribute it and/or
3  * modify it under the terms of the GNU Lesser General Public
4  * License as published by the Free Software Foundation; either
5  * version 2 of the License, or (at your option) any later version.
6  *
7  * This library is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10  * Lesser General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * along with this program; if not, write to the Free Software
14  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15  *
16  * Copyright (C) 2000 - 2005 Liam Girdwood
17  */
18 
19 #ifndef _LN_ANGULAR_SEPARATION_H
20 #define _LN_ANGULAR_SEPARATION_H
21 
22 #include <libnova/ln_types.h>
23 
24 #ifdef __cplusplus
25 extern "C" {
26 #endif
27 
40 double LIBNOVA_EXPORT ln_get_angular_separation (struct ln_equ_posn* posn1, struct ln_equ_posn* posn2);
41 
46 double LIBNOVA_EXPORT ln_get_rel_posn_angle (struct ln_equ_posn* posn1, struct ln_equ_posn* posn2);
47 
48 #ifdef __cplusplus
49 };
50 #endif
51 
52 #endif
double LIBNOVA_EXPORT ln_get_rel_posn_angle(struct ln_equ_posn *posn1, struct ln_equ_posn *posn2)
Calculate the position angle between 2 bodies.
Definition: angular_separation.c:65
Equatorial Coordinates.
Definition: ln_types.h:170
double LIBNOVA_EXPORT ln_get_angular_separation(struct ln_equ_posn *posn1, struct ln_equ_posn *posn2)
Calculate the angular separation between 2 bodies.
Definition: angular_separation.c:33