transform.h

00001 /*
00002  *  This library is free software; you can redistribute it and/or
00003  *  modify it under the terms of the GNU Lesser General Public
00004  *  License as published by the Free Software Foundation; either
00005  *  version 2 of the License, or (at your option) any later version.
00006  *
00007  *  This library is distributed in the hope that it will be useful,
00008  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00009  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00010  *  Lesser General Public License for more details.
00011  *
00012  *  You should have received a copy of the GNU General Public License
00013  *  along with this program; if not, write to the Free Software
00014  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00015  *  
00016  *  Copyright (C) 2000 - 2005 Liam Girdwood  
00017  */
00018 
00019 #ifndef _LN_TRANSFORM_H
00020 #define _LN_TRANSFORM_H
00021 
00022 #include <libnova/ln_types.h>
00023 
00024 #ifdef __cplusplus
00025 extern "C" {
00026 #endif
00027 
00037 /* Use get_mean_sidereal_time, get_hrz_from_equ_siderealtime */
00038 void LIBNOVA_EXPORT ln_get_hrz_from_equ (struct ln_equ_posn * object, struct ln_lnlat_posn * observer, double JD, struct ln_hrz_posn *position);
00039 
00045 /* Equ 12.5,12.6 pg 88 */
00046 void LIBNOVA_EXPORT ln_get_hrz_from_equ_sidereal_time (struct ln_equ_posn * object, struct ln_lnlat_posn * observer, double sidereal, struct ln_hrz_posn *position);
00047 
00052 /* Equ 12.3, 12.4 pg 89 */
00053 void LIBNOVA_EXPORT ln_get_equ_from_ecl (struct ln_lnlat_posn * object, double JD, struct ln_equ_posn * position);
00054 
00059 /* Equ 12.1, 12.2 Pg 88 */
00060 void LIBNOVA_EXPORT ln_get_ecl_from_equ (struct ln_equ_posn * object, double JD, struct ln_lnlat_posn * position);
00061 
00066 /* Pg 89 */
00067 void LIBNOVA_EXPORT ln_get_equ_from_hrz (struct ln_hrz_posn *object, struct ln_lnlat_posn * observer, double JD, struct ln_equ_posn * position); 
00068 
00073 /* Pg ?? */
00074 void LIBNOVA_EXPORT ln_get_rect_from_helio (struct ln_helio_posn *object, struct ln_rect_posn * position); 
00075 
00080 /* Equ 33.2
00081 */
00082 void LIBNOVA_EXPORT ln_get_ecl_from_rect (struct ln_rect_posn * rect, struct ln_lnlat_posn * posn);
00083 
00088 /* Pg 94 */
00089 void LIBNOVA_EXPORT ln_get_equ_from_gal (struct ln_gal_posn *gal, struct ln_equ_posn *equ);
00090 
00095 void LIBNOVA_EXPORT ln_get_equ2000_from_gal (struct ln_gal_posn *gal, struct ln_equ_posn *equ);
00096 
00101 /* Pg 94 */
00102 void LIBNOVA_EXPORT ln_get_gal_from_equ (struct ln_equ_posn *equ, struct ln_gal_posn *gal);
00103 
00108 void LIBNOVA_EXPORT ln_get_gal_from_equ2000 (struct ln_equ_posn *equ, struct ln_gal_posn *gal);
00109 
00110 #ifdef __cplusplus
00111 };
00112 #endif
00113 
00114 #endif