--- /dev/null
+/**************************************************************************
+ * constants.h -- various constant definitions
+ *
+ * Written by Curtis Olson, started July 1997.
+ *
+ * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+ *
+ * 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 CONSTANTS_H
+#define CONSTANTS_H
+
+
+#include <math.h>
+
+
+/* This should be defined in the toplevel make.inc */
+#ifndef VERSION
+#define VERSION "\"not defined\""
+#endif
+
+
+/* Make sure PI is defined in its various forms */
+#ifdef M_PI
+# define FG_PI M_PI
+#else
+# define FG_PI 3.14159265358979323846 /* pi */
+#endif
+
+#ifdef M_PI_2
+# define FG_PI_2 M_PI_2
+#else
+# define FG_PI_2 1.57079632679489661923 /* pi/2 */
+#endif
+
+#define FG_2PI (FG_PI + FG_PI) /* 2*pi */
+
+
+/* Radius of Earth in kilometers at the equator. Another source had
+ * 6378.165 but this is probably close enough */
+#define EARTH_RAD 6378.155
+
+
+/* Earth parameters for WGS 84, taken from LaRCsim/ls_constants.h */
+
+/* Value of earth radius from [8] */
+#define EQUATORIAL_RADIUS_FT 20925650. /* ft */
+#define EQUATORIAL_RADIUS_KM 6378138.12 /* meter */
+/* Radius squared */
+#define RESQ_FT 437882827922500. /* ft */
+#define RESQ_KM 40680645877797.1344 /* meter */
+
+/* Value of earth flattening parameter from ref [8]
+ *
+ * Note: FP = f
+ * E = 1-f
+ * EPS = sqrt(1-(1-f)^2)
+ */
+
+#define FP 0.003352813178
+#define E 0.996647186
+#define EPS 0.081819221
+#define INVG 0.031080997
+
+
+/* Time Related Parameters */
+
+#define MJD0 2415020.0
+#define J2000 (2451545.0 - MJD0)
+#define SIDRATE .9972695677
+
+
+/* Conversions */
+
+/* Degrees to Radians */
+#define DEG_TO_RAD 0.017453292 /* deg*pi/180 = rad */
+
+/* Radians to Degrees */
+#define RAD_TO_DEG 57.29577951 /* rad*180/pi = deg */
+
+/* Arc seconds to radians */ /* (arcsec*pi)/(3600*180) = rad */
+#define ARCSEC_TO_RAD 4.84813681109535993589e-06
+
+/* Radians to arc seconds */ /* (rad*3600*180)/pi = arcsec */
+#define RAD_TO_ARCSEC 206264.806247096355156
+
+/* Feet to Meters */
+#define FEET_TO_METER 0.3048
+
+/* Meters to Feet */
+#define METER_TO_FEET 3.28083989501312335958
+
+
+/* For divide by zero avoidance, this will be close enough to zero */
+#define EPSILON 0.000001
+
+
+/* Timing constants for Flight Model updates */
+#define DEFAULT_TIMER_HZ 20
+#define DEFAULT_MULTILOOP 6
+#define DEFAULT_MODEL_HZ (DEFAULT_TIMER_HZ * DEFAULT_MULTILOOP)
+
+
+#endif /* CONSTANTS_H */
+
+
+/* $Log$
+/* Revision 1.1 1997/12/15 21:02:15 curt
+/* Moved to .../FlightGear/Src/Include/
+/*
+ * Revision 1.10 1997/09/13 01:59:45 curt
+ * Mostly working on stars and generating sidereal time for accurate star
+ * placement.
+ *
+ * Revision 1.9 1997/08/22 21:34:32 curt
+ * Doing a bit of reorganizing and house cleaning.
+ *
+ * Revision 1.8 1997/07/31 22:52:22 curt
+ * Working on redoing internal coordinate systems & scenery transformations.
+ *
+ * Revision 1.7 1997/07/23 21:52:10 curt
+ * Put comments around the text after an #endif for increased portability.
+ *
+ * Revision 1.6 1997/07/21 14:45:01 curt
+ * Minor tweaks.
+ *
+ * Revision 1.5 1997/07/19 23:04:46 curt
+ * Added an initial weather section.
+ *
+ * Revision 1.4 1997/07/19 22:37:03 curt
+ * Added various PI definitions.
+ *
+ * Revision 1.3 1997/07/14 16:26:03 curt
+ * Testing/playing -- placed objects randomly across the entire terrain.
+ *
+ * Revision 1.2 1997/07/08 18:20:11 curt
+ * Working on establishing a hard ground.
+ *
+ * Revision 1.1 1997/07/07 21:02:36 curt
+ * Initial revision.
+ * */
--- /dev/null
+/**************************************************************************
+ * general.h -- a general house keeping data structure definition for
+ * various info that might need to be accessible from all
+ * parts of the sim.
+ *
+ * Written by Curtis Olson, started July 1997.
+ *
+ * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+ *
+ * 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 GENERAL_H
+#define GENERAL_H
+
+
+/* the general house keeping structure definition */
+struct fgGENERAL {
+ /* The flight gear "root" directory */
+ char *root_dir;
+};
+
+/* general contains all the general house keeping parameters. */
+extern struct fgGENERAL general;
+
+#endif /* GENERAL_H */
+
+
+/* $Log$
+/* Revision 1.1 1997/12/15 21:02:16 curt
+/* Moved to .../FlightGear/Src/Include/
+/*
+ * Revision 1.3 1997/12/10 22:37:34 curt
+ * Prepended "fg" on the name of all global structures that didn't have it yet.
+ * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
+ *
+ * Revision 1.2 1997/08/27 03:29:38 curt
+ * Changed naming scheme of basic shared structures.
+ *
+ * Revision 1.1 1997/08/23 11:37:12 curt
+ * Initial revision.
+ *
+ */
--- /dev/null
+/**************************************************************************
+ * limits.h -- program wide limits
+ *
+ * Written by Curtis Olson, started May 1997.
+ *
+ * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+ *
+ * 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 LIMITS_H
+#define LIMITS_H
+
+
+/* Maximum number of engines for a single aircraft */
+#define FG_MAX_ENGINES 10
+
+
+#endif /* LIMITS_H */
+
+
+/* $Log$
+/* Revision 1.1 1997/12/15 21:02:16 curt
+/* Moved to .../FlightGear/Src/Include/
+/*
+ * Revision 1.4 1997/07/23 21:52:11 curt
+ * Put comments around the text after an #endif for increased portability.
+ *
+ * Revision 1.3 1997/05/31 19:16:24 curt
+ * Elevator trim added.
+ *
+ * Revision 1.2 1997/05/27 17:48:10 curt
+ * Added GNU copyright.
+ *
+ * Revision 1.1 1997/05/16 16:08:00 curt
+ * Initial revision.
+ *
+ */
--- /dev/null
+/**************************************************************************
+ * types.h -- various data structure definitions
+ *
+ * Written by Curtis Olson, started July 1997.
+ *
+ * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+ *
+ * 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 TYPES_H
+#define TYPES_H
+
+
+/* A simple cartesian point */
+struct fgCartesianPoint {
+ double x, y, z;
+};
+
+
+/* A simple geodetic point */
+struct fgGeodeticPoint {
+ double lon, lat, elev;
+};
+
+
+#endif /* TYPES_H */
+
+
+/* $Log$
+/* Revision 1.1 1997/12/15 21:02:17 curt
+/* Moved to .../FlightGear/Src/Include/
+/*
+ * Revision 1.2 1997/07/23 21:52:12 curt
+ * Put comments around the text after an #endif for increased portability.
+ *
+ * Revision 1.1 1997/07/07 21:03:30 curt
+ * Initial revision.
+ *
+ */
projects / flightgear.git / commitdiff