C++ - ifing the code a bit.

2009-09-15 18:31:29 +02:00
parent b6b93c74ea
commit 2dd9bcbd50
14 changed files with 166 additions and 132 deletions
@@ -0,0 +1,125 @@
+/**************************************************************************
+ * orbits.h - calculates the orbital elements of the sun, moon and planets.
+ *            For inclusion in flight gear
+ *
+ * Written 1997 by Durk Talsma, started October 19, 1997.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id$
+ * (Log is kept at end of this file)
+ **************************************************************************/
+
+
+#ifndef _ORBITS_HXX
+#define _ORBITS_HXX
+
+
+#ifndef __cplusplus                                                          
+# error This library requires C++
+#endif                                   
+
+
+#include <stdio.h>
+#include <math.h>
+
+#include <Time/fg_time.h>
+
+
+
+//#define STANDARDEPOCH 2000
+
+typedef struct {
+    double xs;
+    double ys;
+    double dist;
+    double lonSun;
+} fgSUNPOS;
+
+extern fgSUNPOS solarPosition;
+
+
+struct OrbElements {
+    double NFirst;		/* longitude of the ascending node first part */
+    double NSec;		/* longitude of the ascending node second part */
+    double iFirst;		/* inclination to the ecliptic first part */
+    double iSec;		/* inclination to the ecliptic second part */
+    double wFirst;		/* first part of argument of perihelion */
+    double wSec;		/* second part of argument of perihelion */
+    double aFirst;		/* semimayor axis first part*/
+    double aSec;		/* semimayor axis second part */
+    double eFirst;		/* eccentricity first part */
+    double eSec;		/* eccentricity second part */
+    double MFirst;		/* Mean anomaly first part */
+    double MSec;		/* Mean anomaly second part */
+
+    double N, i, w, a, e, M;	/* the resultant orbital elements, obtained from the former */
+};
+
+struct CelestialCoord {
+    double RightAscension;
+    double Declination;
+    double distance;
+    double magnitude;
+};
+
+
+double fgCalcEccAnom(double M, double e);
+double fgCalcActTime(struct fgTIME t);
+
+int fgReadOrbElements (struct OrbElements *dest, FILE * src);
+int  fgSolarSystemInit(struct fgTIME t);
+void fgSolarSystemUpdate(struct OrbElements *planets, struct fgTIME t);
+
+
+#endif /* _ORBITS_HXX */
+
+
+/* $Log$
+/* Revision 1.1  1998/04/22 13:21:30  curt
+/* C++ - ifing the code a bit.
+/*
+ * Revision 1.7  1998/04/21 17:02:31  curt
+ * Prepairing for C++ integration.
+ *
+ * Revision 1.6  1998/02/23 19:07:55  curt
+ * Incorporated Durk's Astro/ tweaks.  Includes unifying the sun position
+ * calculation code between sun display, and other FG sections that use this
+ * for things like lighting.
+ *
+ * Revision 1.5  1998/02/12 21:59:35  curt
+ * Incorporated code changes contributed by Charlie Hotchkiss
+ * <chotchkiss@namg.us.anritsu.com>
+ *
+ * Revision 1.4  1998/02/02 20:53:22  curt
+ * To version 0.29
+ *
+ * Revision 1.3  1998/01/22 02:59:27  curt
+ * Changed #ifdef FILE_H to #ifdef _FILE_H
+ *
+ * Revision 1.2  1998/01/19 19:26:58  curt
+ * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
+ * This should simplify things tremendously.
+ *
+ * Revision 1.1  1998/01/07 03:16:17  curt
+ * Moved from .../Src/Scenery/ to .../Src/Astro/
+ *
+ * Revision 1.2  1997/12/30 16:36:52  curt
+ * Merged in Durk's changes ...
+ *
+ * Revision 1.1  1997/10/25 03:16:10  curt
+ * Initial revision of code contributed by Durk Talsma.
+ *
+ */