390 lines
15 KiB
C++
390 lines
15 KiB
C++
/*****************************************************************************
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Header: FGPhysicalProperties.h
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Author: Christian Mayer
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Date started: 28.05.99
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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
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place - Suite 330, Boston, MA 02111-1307, USA.
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Further information about the GNU General Public License can also be found on
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the world wide web at http://www.gnu.org.
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FUNCTIONAL DESCRIPTION
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------------------------------------------------------------------------------
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Define the simulated physical properties of the weather
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HISTORY
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------------------------------------------------------------------------------
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28.05.1999 Christian Mayer Created
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16.06.1999 Durk Talsma Portability for Linux
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20.06.1999 Christian Mayer Changed struct to class
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20.06.1999 Christian Mayer added lots of consts
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30.06.1999 Christian Mayer STL portability
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11.10.1999 Christian Mayer changed set<> to map<> on Bernie Bright's
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suggestion
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19.10.1999 Christian Mayer change to use PLIB's sg instead of Point[2/3]D
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and lots of wee code cleaning
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15.12.1999 Christian Mayer changed the air pressure calculation to a much
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more realistic formula. But as I need for that
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the temperature I moved the code to
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FGPhysicalProperties
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*****************************************************************************/
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/****************************************************************************/
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/* SENTRY */
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/****************************************************************************/
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#ifndef FGPhysicalProperties_H
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#define FGPhysicalProperties_H
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/****************************************************************************/
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/* INCLUDES */
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/****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <simgear/compiler.h>
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#ifdef HAVE_WINDOWS_H
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# include <windows.h>
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#endif
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#include <iostream>
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#include <vector>
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#include <map>
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#include <plib/sg.h>
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#include "FGWeatherDefs.h"
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#include "FGAirPressureItem.h"
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#include "FGWindItem.h"
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#include "FGTurbulenceItem.h"
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#include "FGCloudItem.h"
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#include "FGSnowRain.h"
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FG_USING_STD(vector);
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FG_USING_STD(map);
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FG_USING_NAMESPACE(std);
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/****************************************************************************/
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/* FOREWARD DEFINITIONS */
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/****************************************************************************/
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class FGPhysicalProperties2D;
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ostream& operator<< ( ostream& out, const FGPhysicalProperties2D& p );
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class FGPhysicalProperties
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{
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public:
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typedef WeatherPrecision Altitude;
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map<Altitude,FGWindItem> Wind; //all Wind vectors
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map<Altitude,FGTurbulenceItem> Turbulence; //all Turbulence vectors
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map<Altitude,WeatherPrecision> Temperature; //in deg. Kelvin (I *only* accept SI!)
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FGAirPressureItem AirPressure; //in Pascal (I *only* accept SI!)
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map<Altitude,WeatherPrecision> VaporPressure; //in Pascal (I *only* accept SI!)
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map<Altitude,FGCloudItem> Clouds; //amount of covering and type
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WeatherPrecision SnowRainIntensity; //this also stands for hail, snow,...
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SnowRainType snowRainType;
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WeatherPrecision LightningProbability; //in lightnings per second
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FGPhysicalProperties(); //consructor to fill it with FG standart weather
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//return values at specified altitudes
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void WindAt (sgVec3 ret, const WeatherPrecision a) const;
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void TurbulenceAt (sgVec3 ret, const WeatherPrecision a) const;
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WeatherPrecision TemperatureAt (const WeatherPrecision a) const;
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WeatherPrecision AirPressureAt (const WeatherPrecision x) const; //x is used here instead of a on purpose
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WeatherPrecision VaporPressureAt(const WeatherPrecision a) const;
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//for easier access to the cloud stuff:
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unsigned int getNumberOfCloudLayers(void) const;
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FGCloudItem getCloudLayer(unsigned int nr) const;
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FGPhysicalProperties& operator = ( const FGPhysicalProperties& p );
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FGPhysicalProperties& operator *= ( const WeatherPrecision d );
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FGPhysicalProperties& operator += ( const FGPhysicalProperties& p );
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FGPhysicalProperties& operator -= ( const FGPhysicalProperties& p );
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};
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class FGPhysicalProperties2D : public FGPhysicalProperties
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{
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public:
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sgVec2 p; //position of the property (lat/lon)
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friend ostream& operator<< ( ostream& out, const FGPhysicalProperties2D& p );
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FGPhysicalProperties2D() {}
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FGPhysicalProperties2D(const FGPhysicalProperties& prop, const sgVec2& pos)
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{
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Wind = prop.Wind;
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Turbulence = prop.Turbulence;
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Temperature = prop.Temperature;
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AirPressure = prop.AirPressure;
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VaporPressure = prop.VaporPressure;
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sgCopyVec2(p, pos);
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}
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};
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typedef vector<FGPhysicalProperties> FGPhysicalPropertiesVector;
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typedef FGPhysicalPropertiesVector::iterator FGPhysicalPropertiesVectorIt;
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typedef FGPhysicalPropertiesVector::const_iterator FGPhysicalPropertiesVectorConstIt;
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typedef vector<FGPhysicalProperties2D> FGPhysicalProperties2DVector;
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typedef FGPhysicalProperties2DVector::iterator FGPhysicalProperties2DVectorIt;
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typedef FGPhysicalProperties2DVector::const_iterator FGPhysicalProperties2DVectorConstIt;
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inline FGPhysicalProperties& FGPhysicalProperties::operator = ( const FGPhysicalProperties& p )
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{
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Wind = p.Wind;
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Turbulence = p.Turbulence;
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Temperature = p.Temperature;
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AirPressure = p.AirPressure;
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VaporPressure = p.VaporPressure;
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return *this;
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}
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inline FGPhysicalProperties& FGPhysicalProperties::operator *= ( const WeatherPrecision d )
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{
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typedef map<FGPhysicalProperties::Altitude, FGWindItem >::iterator wind_iterator;
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typedef map<FGPhysicalProperties::Altitude, FGTurbulenceItem>::iterator turbulence_iterator;
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typedef map<FGPhysicalProperties::Altitude, WeatherPrecision>::iterator scalar_iterator;
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for (wind_iterator WindIt = Wind.begin();
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WindIt != Wind.end();
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WindIt++)
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WindIt->second*= d;
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for (turbulence_iterator TurbulenceIt = Turbulence.begin();
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TurbulenceIt != Turbulence.end();
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TurbulenceIt++)
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TurbulenceIt->second *= d;
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for (scalar_iterator TemperatureIt = Temperature.begin();
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TemperatureIt != Temperature.end();
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TemperatureIt++)
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TemperatureIt->second *= d;
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AirPressure *= d;
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for (scalar_iterator VaporPressureIt = VaporPressure.begin();
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VaporPressureIt != VaporPressure.end();
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VaporPressureIt++)
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VaporPressureIt->second *= d;
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return *this;
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}
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inline FGPhysicalProperties& FGPhysicalProperties::operator += (const FGPhysicalProperties& p)
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{
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typedef map<FGPhysicalProperties::Altitude, FGWindItem >::const_iterator wind_iterator;
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typedef map<FGPhysicalProperties::Altitude, FGTurbulenceItem>::const_iterator turbulence_iterator;
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typedef map<FGPhysicalProperties::Altitude, WeatherPrecision>::const_iterator scalar_iterator;
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for (wind_iterator WindIt = p.Wind.begin();
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WindIt != p.Wind.end();
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WindIt++)
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if (!Wind.insert(*WindIt).second) //when it's not inserted => it's already existing
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Wind[WindIt->first] += WindIt->second; //=> add the value
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for (turbulence_iterator TurbulenceIt = p.Turbulence.begin();
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TurbulenceIt != p.Turbulence.end();
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TurbulenceIt++)
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if (!Turbulence.insert(*TurbulenceIt).second)
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Turbulence[TurbulenceIt->first] += TurbulenceIt->second;
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for (scalar_iterator TemperatureIt = p.Temperature.begin();
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TemperatureIt != p.Temperature.end();
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TemperatureIt++)
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if (!Temperature.insert(*TemperatureIt).second)
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Temperature[TemperatureIt->first] += TemperatureIt->second;
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AirPressure += p.AirPressure.getValue();
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for (scalar_iterator VaporPressureIt = p.VaporPressure.begin();
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VaporPressureIt != p.VaporPressure.end();
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VaporPressureIt++)
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if (!VaporPressure.insert(*VaporPressureIt).second)
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VaporPressure[VaporPressureIt->first] += VaporPressureIt->second;
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return *this;
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}
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// slightly modified version that also makes the Mac happy
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inline FGPhysicalProperties& FGPhysicalProperties::operator -= (const FGPhysicalProperties& p)
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{
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typedef map<FGPhysicalProperties::Altitude, FGWindItem>::const_iterator wind_iterator;
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typedef map<FGPhysicalProperties::Altitude, FGTurbulenceItem>::const_iterator turbulence_iterator;
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typedef map<FGPhysicalProperties::Altitude, WeatherPrecision>::const_iterator scalar_iterator;
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// types to replace make_pair
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typedef map<FGPhysicalProperties::Altitude, FGWindItem>::value_type wind_type;
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typedef map<FGPhysicalProperties::Altitude, FGTurbulenceItem>::value_type turb_type;
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typedef map<FGPhysicalProperties::Altitude, WeatherPrecision>::value_type weather_type;
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for (wind_iterator WindIt = p.Wind.begin();
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WindIt != p.Wind.end();
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WindIt++)
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if (!Wind.insert( wind_type(WindIt->first, -WindIt->second) ).second)
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// when it's not inserted => it's already existing
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Wind[WindIt->first] -= WindIt->second; //=> substract the value
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for (turbulence_iterator TurbulenceIt = p.Turbulence.begin();
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TurbulenceIt != p.Turbulence.end();
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TurbulenceIt++)
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if (!Turbulence.insert( turb_type(TurbulenceIt->first, -TurbulenceIt->second) ).second)
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Turbulence[TurbulenceIt->first] -= TurbulenceIt->second;
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for (scalar_iterator TemperatureIt = p.Temperature.begin();
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TemperatureIt != p.Temperature.end();
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TemperatureIt++)
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if (!Temperature.insert( weather_type(TemperatureIt->first, -TemperatureIt->second) ).second)
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Temperature[TemperatureIt->first] -= TemperatureIt->second;
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AirPressure -= p.AirPressure.getValue();
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for (scalar_iterator VaporPressureIt = p.VaporPressure.begin();
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VaporPressureIt != p.VaporPressure.end();
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VaporPressureIt++)
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if (!VaporPressure.insert( weather_type(VaporPressureIt->first, -VaporPressureIt->second) ).second)
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VaporPressure[VaporPressureIt->first] -= VaporPressureIt->second;
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return *this;
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}
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#if 0 // old version
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inline FGPhysicalProperties& FGPhysicalProperties::operator -= (const FGPhysicalProperties& p)
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{
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typedef map<FGPhysicalProperties::Altitude, FGWindItem >::const_iterator wind_iterator;
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typedef map<FGPhysicalProperties::Altitude, FGTurbulenceItem>::const_iterator turbulence_iterator;
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typedef map<FGPhysicalProperties::Altitude, WeatherPrecision>::const_iterator scalar_iterator;
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for (wind_iterator WindIt = p.Wind.begin();
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WindIt != p.Wind.end();
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WindIt++)
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if (!Wind.insert( make_pair(WindIt->first, -WindIt->second) ).second) //when it's not inserted => it's already existing
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Wind[WindIt->first] -= WindIt->second; //=> substract the value
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for (turbulence_iterator TurbulenceIt = p.Turbulence.begin();
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TurbulenceIt != p.Turbulence.end();
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TurbulenceIt++)
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if (!Turbulence.insert( make_pair(TurbulenceIt->first, -TurbulenceIt->second) ).second)
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Turbulence[TurbulenceIt->first] -= TurbulenceIt->second;
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for (scalar_iterator TemperatureIt = p.Temperature.begin();
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TemperatureIt != p.Temperature.end();
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TemperatureIt++)
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if (!Temperature.insert( make_pair(TemperatureIt->first, -TemperatureIt->second) ).second)
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Temperature[TemperatureIt->first] -= TemperatureIt->second;
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AirPressure -= p.AirPressure.getValue();
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for (scalar_iterator VaporPressureIt = p.VaporPressure.begin();
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VaporPressureIt != p.VaporPressure.end();
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VaporPressureIt++)
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if (!VaporPressure.insert( make_pair(VaporPressureIt->first, -VaporPressureIt->second) ).second)
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VaporPressure[VaporPressureIt->first] -= VaporPressureIt->second;
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return *this;
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}
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#endif
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inline void FGPhysicalProperties::WindAt(sgVec3 ret, const WeatherPrecision a) const
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{
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typedef map<FGPhysicalProperties::Altitude, FGWindItem>::const_iterator vector_iterator;
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vector_iterator it = Wind.lower_bound(a);
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vector_iterator it2 = it;
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it--;
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//now I've got it->alt < a < it2->alt so I can interpolate
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sgSubVec3(ret, *it2->second.getValue(), *it->second.getValue());
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sgScaleVec3(ret, (a - it2->first) / (it2->first - it->first));
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sgAddVec3(ret, *it2->second.getValue());
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}
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inline void FGPhysicalProperties::TurbulenceAt(sgVec3 ret, const WeatherPrecision a) const
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{
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typedef map<FGPhysicalProperties::Altitude, FGTurbulenceItem>::const_iterator vector_iterator;
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vector_iterator it = Turbulence.lower_bound(a);
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vector_iterator it2 = it;
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it--;
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//now I've got it->alt < a < it2->alt so I can interpolate
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sgSubVec3(ret, *it2->second.getValue(), *it->second.getValue());
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sgScaleVec3(ret, (a - it2->first) / (it2->first - it->first));
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sgAddVec3(ret, *it2->second.getValue());
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}
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inline WeatherPrecision FGPhysicalProperties::TemperatureAt(const WeatherPrecision a) const
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{
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typedef map<FGPhysicalProperties::Altitude, WeatherPrecision>::const_iterator scalar_iterator;
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scalar_iterator it = Temperature.lower_bound(a);
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scalar_iterator it2 = it;
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it--;
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//now I've got it->alt < a < it2->alt so I can interpolate
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return ( (it2->second - it->second)/(it2->first - it->first) ) * (a - it2->first) + it2->second;
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}
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//inline WeatherPrecision FGPhysicalProperties::AirPressureAt(const WeatherPrecision x) const
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//moved to FGPhysicalProperties.cpp as it got too complex to inline
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inline WeatherPrecision FGPhysicalProperties::VaporPressureAt(const WeatherPrecision a) const
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{
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typedef map<FGPhysicalProperties::Altitude, WeatherPrecision>::const_iterator scalar_iterator;
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scalar_iterator it = VaporPressure.lower_bound(a);
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scalar_iterator it2 = it;
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it--;
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//now I've got it->alt < a < it2->alt so I can interpolate
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return ( (it2->second - it->second)/(it2->first - it->first) ) * (a - it2->first) + it2->second;
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}
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inline FGPhysicalProperties operator * (FGPhysicalProperties a, const WeatherPrecision b)
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{
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return a *= b;
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}
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inline FGPhysicalProperties operator * (const WeatherPrecision b, FGPhysicalProperties a)
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{
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return a *= b;
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}
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inline FGPhysicalProperties operator + (FGPhysicalProperties a, const FGPhysicalProperties& b)
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{
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return a += b;
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}
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inline FGPhysicalProperties operator - (FGPhysicalProperties a, const FGPhysicalProperties& b)
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{
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return a -= b;
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}
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/****************************************************************************/
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#endif /*FGPhysicalProperties_H*/
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