1 /*****************************************************************************
3 Header: FGWeatherDefs.h
4 Author: Christian Mayer
7 ---------- Copyright (C) 1999 Christian Mayer (vader@t-online.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 *****************************************************************************/
37 /****************************************************************************/
39 /****************************************************************************/
40 #ifndef FGWeatherDefs_H
41 #define FGWeatherDefs_H
43 /****************************************************************************/
45 /****************************************************************************/
47 /****************************************************************************/
49 /****************************************************************************/
50 typedef float WeatherPrecition;
52 //set the minimum visibility to get a at least half way realistic weather
53 #define MINIMUM_WEATHER_VISIBILIY 10.0 /* metres */
54 #define DEFAULT_WEATHER_VISIBILIY 32000.0 /* metres */
55 //prefered way the database is working
56 #define PREFERED_WORKING_TYPE default_mode
58 #define FG_WEATHER_DEFAULT_TEMPERATURE (15.0+273.16) /*15°C or 288.16°K*/
59 #define FG_WEATHER_DEFAULT_VAPORPRESSURE (0.0) /*in Pascal 1 Pa = N/m^2*/
60 #define FG_WEATHER_DEFAULT_AIRPRESSURE (1013.25*100.0) /*in Pascal 1 Pa = N/m^2*/
61 #define FG_WEATHER_DEFAULT_AIRDENSITY (1.22501) /*in kg/m^3*/
62 /****************************************************************************/
63 /* CLASS DECLARATION */
64 /****************************************************************************/
66 /****************************************************************************/
67 #endif /*FGWeatherDefs_H*/