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flightgear/src/WeatherCM/FGPhysicalProperty.cpp

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/*****************************************************************************
Module: FGPhysicalProperty.cpp
Author: Christian Mayer
Date started: 28.05.99
Called by: main program
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-------- Copyright (C) 1999 Christian Mayer (fgfs@christianmayer.de) --------
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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., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA.
Further information about the GNU General Public License can also be found on
the world wide web at http://www.gnu.org.
FUNCTIONAL DESCRIPTION
------------------------------------------------------------------------------
Initialice the FGPhysicalProperty struct to something sensible(?)
HISTORY
------------------------------------------------------------------------------
29.05.1999 Christian Mayer Created
16.06.1999 Durk Talsma Portability for Linux
20.06.1999 Christian Mayer added lots of consts
11.10.1999 Christian Mayer changed set<> to map<> on Bernie Bright's
suggestion
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19.10.1999 Christian Mayer change to use PLIB's sg instead of Point[2/3]D
and lots of wee code cleaning
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*****************************************************************************/
/****************************************************************************/
/* INCLUDES */
/****************************************************************************/
#include "FGWeatherDefs.h"
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#include "FGPhysicalProperty.h"
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/****************************************************************************/
/********************************** CODE ************************************/
/****************************************************************************/
FGPhysicalProperty::FGPhysicalProperty()
{
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sgZeroVec3(Wind); //Wind vector
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sgZeroVec3(Turbulence); //Turbulence vector
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Temperature = FG_WEATHER_DEFAULT_TEMPERATURE; //a nice warm day
AirPressure = FG_WEATHER_DEFAULT_AIRPRESSURE; //mbar, that's ground level
VaporPressure = FG_WEATHER_DEFAULT_VAPORPRESSURE; //that gives about 50% relatvie humidity
}
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FGPhysicalProperty::FGPhysicalProperty(const FGPhysicalProperties& p, const WeatherPrecision altitude)
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{
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p.WindAt(Wind, altitude);
p.TurbulenceAt(Turbulence, altitude);
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Temperature = p.TemperatureAt(altitude);
AirPressure = p.AirPressureAt(altitude);
VaporPressure = p.VaporPressureAt(altitude);
}