0bc49bf244
This patch makesFlightGear at least compile on MSVC. I hope I have removed reference of my other local changes. DSP and DSW files are included for reference. They have been reconstructed with am2dsp.pl. I had to introduce a change to am2dsp because of the need of filenames with embedded spaces. (Yuck) The major direction is to remove clutter like the _USE_MATH_DEFINES and have it on the compiler command line sice there is no central include file. You will have to put it on the command line for your locale Project files, if it not there, already. I added the _CRT_SECURE_NO_DEPRECATE define for 2005, since it does no harm to other VC version. Third Party Libs like plib, OpenALSDK, freeglut, pthreads-win32, zlib are unpacked as is side by side. Only change put the includes of OpenAL into include/AL rather directly into include.
163 lines
4.2 KiB
C
163 lines
4.2 KiB
C
// constants.h -- various constant definitions
|
|
//
|
|
// Written by Curtis Olson, started February 2000.
|
|
//
|
|
// Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt/
|
|
//
|
|
// This library is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Library General Public
|
|
// License as published by the Free Software Foundation; either
|
|
// version 2 of the License, or (at your option) any later version.
|
|
//
|
|
// This library 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
|
|
// Library General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Library General Public
|
|
// License along with this library; if not, write to the
|
|
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
// Boston, MA 02111-1307, USA.
|
|
//
|
|
// $Id$
|
|
|
|
/** \file constants.h
|
|
* Various constant definitions.
|
|
*/
|
|
|
|
|
|
#ifndef _SG_CONSTANTS_H
|
|
#define _SG_CONSTANTS_H
|
|
|
|
|
|
#include <simgear/compiler.h>
|
|
|
|
#ifdef SG_HAVE_STD_INCLUDES
|
|
# include <cmath>
|
|
#else
|
|
# ifdef SG_MATH_EXCEPTION_CLASH
|
|
# define exception C_exception
|
|
# endif
|
|
# include <math.h>
|
|
#endif
|
|
|
|
#include <plib/sg.h>
|
|
|
|
|
|
// Make sure PI is defined in its various forms
|
|
|
|
// SG_PI and SGD_PI (float and double) come from plib/sg.h
|
|
|
|
/** 2 * PI */
|
|
#define SGD_2PI 6.28318530717958647692
|
|
|
|
/** PI / 2 */
|
|
#ifdef M_PI_2
|
|
# define SGD_PI_2 M_PI_2
|
|
#else
|
|
# define SGD_PI_2 1.57079632679489661923
|
|
#endif
|
|
|
|
/** PI / 4 */
|
|
#define SGD_PI_4 0.78539816339744830961
|
|
|
|
/** \def SG_E "e" */
|
|
#ifdef M_E
|
|
# define SG_E M_E
|
|
#else
|
|
# define SG_E 2.7182818284590452354
|
|
#endif
|
|
|
|
/** pi/180/60/60, or about 100 feet at earths' equator */
|
|
#define SG_ONE_SECOND 4.848136811E-6
|
|
|
|
|
|
/** Radius of Earth in kilometers at the equator. Another source had
|
|
* 6378.165 but this is probably close enough */
|
|
#define SG_EARTH_RAD 6378.155
|
|
|
|
|
|
// Earth parameters for WGS 84, taken from LaRCsim/ls_constants.h
|
|
|
|
/** Value of earth radius from LaRCsim (ft) */
|
|
#define SG_EQUATORIAL_RADIUS_FT 20925650.
|
|
|
|
/** Value of earth radius from LaRCsim (meter) */
|
|
#define SG_EQUATORIAL_RADIUS_M 6378138.12
|
|
|
|
/** Radius squared (ft) */
|
|
#define SG_EQ_RAD_SQUARE_FT 437882827922500.
|
|
|
|
/** Radius squared (meter) */
|
|
#define SG_EQ_RAD_SQUARE_M 40680645877797.1344
|
|
|
|
// Conversions
|
|
|
|
/** Arc seconds to radians. (arcsec*pi)/(3600*180) = rad */
|
|
#define SG_ARCSEC_TO_RAD 4.84813681109535993589e-06
|
|
|
|
/** Radians to arc seconds. (rad*3600*180)/pi = arcsec */
|
|
#define SG_RAD_TO_ARCSEC 206264.806247096355156
|
|
|
|
/** Feet to Meters */
|
|
#define SG_FEET_TO_METER 0.3048
|
|
|
|
/** Meters to Feet */
|
|
#define SG_METER_TO_FEET 3.28083989501312335958
|
|
|
|
/** Meters to Nautical Miles. 1 nm = 6076.11549 feet */
|
|
#define SG_METER_TO_NM 0.0005399568034557235
|
|
|
|
/** Nautical Miles to Meters */
|
|
#define SG_NM_TO_METER 1852.0000
|
|
|
|
/** Meters to Statute Miles. */
|
|
#define SG_METER_TO_SM 0.0006213699494949496
|
|
|
|
/** Statute Miles to Meters. */
|
|
#define SG_SM_TO_METER 1609.3412196
|
|
|
|
/** Radians to Nautical Miles. 1 nm = 1/60 of a degree */
|
|
#define SG_NM_TO_RAD 0.00029088820866572159
|
|
|
|
/** Nautical Miles to Radians */
|
|
#define SG_RAD_TO_NM 3437.7467707849392526
|
|
|
|
/** Miles per second to Knots */
|
|
#define SG_MPS_TO_KT 1.9438444924406046432
|
|
|
|
/** Knots to Miles per second */
|
|
#define SG_KT_TO_MPS 0.5144444444444444444
|
|
|
|
/** Miles per second to Miles per hour */
|
|
#define SG_MPS_TO_MPH 2.2369362920544020312
|
|
|
|
/** Miles per hour to Miles per second */
|
|
#define SG_MPH_TO_MPS 0.44704
|
|
|
|
/** Meters per second to Kilometers per hour */
|
|
#define SG_MPS_TO_KMH 3.6
|
|
|
|
/** Kilometers per hour to Miles per second */
|
|
#define SG_KMH_TO_MPS 0.2777777777777777778
|
|
|
|
/** Pascal to Inch Mercury */
|
|
#define SG_PA_TO_INHG 0.0002952998330101010
|
|
|
|
/** Inch Mercury to Pascal */
|
|
#define SG_INHG_TO_PA 3386.388640341
|
|
|
|
|
|
/** For divide by zero avoidance, this will be close enough to zero */
|
|
#define SG_EPSILON 0.0000001
|
|
|
|
/** Highest binobj format version we know how to read/write. This starts at
|
|
* 0 and can go up to 65535 */
|
|
#define SG_BINOBJ_VERSION 6
|
|
|
|
/** for backwards compatibility */
|
|
#define SG_SCENERY_FILE_FORMAT "0.4"
|
|
|
|
|
|
#endif // _SG_CONSTANTS_H
|