1 /**************************************************************************
4 * Written 1997 by Durk Talsma, started October, 1997.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of the
9 * License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * (Log is kept at end of this file)
22 **************************************************************************/
29 #include <Astro/orbits.h>
31 #include <Time/fg_time.h>
34 #define X .525731112119133606
35 #define Z .850650808352039932
38 /* Initialize the Moon Display management Subsystem */
39 void fgMoonInit( void );
42 void fgMoonRender( void );
44 struct CelestialCoord fgCalculateMoon(struct OrbElements Params,
45 struct OrbElements sunParams,
48 extern struct OrbElements pltOrbElements[9];
54 /* Revision 1.3 1998/01/19 19:26:58 curt
55 /* Merged in make system changes from Bob Kuehne <rpk@sgi.com>
56 /* This should simplify things tremendously.
58 * Revision 1.2 1998/01/19 18:40:17 curt
59 * Tons of little changes to clean up the code and to remove fatal errors
60 * when building with the c++ compiler.
62 * Revision 1.1 1998/01/07 03:16:16 curt
63 * Moved from .../Src/Scenery/ to .../Src/Astro/
65 * Revision 1.4 1997/12/11 04:43:56 curt
66 * Fixed sun vector and lighting problems. I thing the moon is now lit
69 * Revision 1.3 1997/11/25 19:25:35 curt
70 * Changes to integrate Durk's moon/sun code updates + clean up.
72 * Revision 1.2 1997/10/25 03:24:23 curt
73 * Incorporated sun, moon, and star positioning code contributed by Durk Talsma.
75 * Revision 1.1 1997/10/25 03:16:09 curt
76 * Initial revision of code contributed by Durk Talsma.