1 /*****************************************************************************
3 Header: FGWeatherDefs.h
4 Author: Christian Mayer
7 -------- Copyright (C) 1999 Christian Mayer (fgfs@christianmayer.de) --------
9 This program is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free Software
11 Foundation; either version 2 of the License, or (at your option) any later
14 This program is distributed in the hope that it will be useful, but WITHOUT
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
19 You should have received a copy of the GNU General Public License along with
20 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21 Place - Suite 330, Boston, MA 02111-1307, USA.
23 Further information about the GNU General Public License can also be found on
24 the world wide web at http://www.gnu.org.
26 FUNCTIONAL DESCRIPTION
27 ------------------------------------------------------------------------------
28 definitions uses in most weather classes
31 ------------------------------------------------------------------------------
32 28.05.1999 Christian Mayer Created
33 16.06.1999 Durk Talsma Portability for Linux
34 20.06.1999 Christian Mayer added lots of consts
35 11.10.1999 Christian Mayer changed set<> to map<> on Bernie Bright's
37 19.10.1999 Christian Mayer change to use PLIB's sg instead of Point[2/3]D
38 and lots of wee code cleaning
39 *****************************************************************************/
41 /****************************************************************************/
43 /****************************************************************************/
44 #ifndef FGWeatherDefs_H
45 #define FGWeatherDefs_H
47 /****************************************************************************/
49 /****************************************************************************/
51 /****************************************************************************/
53 /****************************************************************************/
54 typedef double WeatherPrecision;
56 //set the minimum visibility to get a at least half way realistic weather
57 #define MINIMUM_WEATHER_VISIBILITY 10.0 /* metres */
58 #define DEFAULT_WEATHER_VISIBILITY 32000.0 /* metres */
59 //prefered way the database is working
60 #define PREFERED_WORKING_TYPE default_mode
61 // #define PREFERED_WORKING_TYPE use_internet
63 #define FG_WEATHER_DEFAULT_TEMPERATURE (15.0+273.16) /*15°C or 288.16°K*/
64 #define FG_WEATHER_DEFAULT_VAPORPRESSURE (0.0) /*in Pascal 1 Pa = N/m^2*/
65 #define FG_WEATHER_DEFAULT_AIRPRESSURE (1013.25*100.0) /*in Pascal 1 Pa = N/m^2*/
66 #define FG_WEATHER_DEFAULT_AIRDENSITY (1.22501) /*in kg/m^3*/
68 /****************************************************************************/
69 /* CLASS DECLARATION */
70 /****************************************************************************/
72 /****************************************************************************/
73 #endif /*FGWeatherDefs_H*/