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flightgear/src/Environment/environment.hxx

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Initial take of new environment subsystem. Configure with --use-new-environment to active it.
2002-02-19 14:21:19 +00:00
// environment.hxx -- routines to model the natural environment.
//
// Written by David Megginson, started February 2002.
//
// Copyright (C) 2002 David Megginson - david@megginson.com
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// $Id$
#ifndef _ENVIRONMENT_HXX
#define _ENVIRONMENT_HXX
#include <simgear/compiler.h>
#include <Main/fgfs.hxx>
#ifdef SG_HAVE_STD_INCLUDES
# include <cmath>
#else
# include <math.h>
#endif
Finished off the atmosphere model (Troposphere and lower Stratosphere). The atmospheric properties are as follow: /environment/temperature-sea-level-degc /environment/temperature-degc /environment/pressure-sea-level-inhg /environment/pressure-inhg /environment/density-sea-level-slugft3 /environment/density-slugft3 Setting either the sea-level or altitude value automatically sets the other value appropriate, except for temperature at altitude above the Troposphere (where there's no reliable way to back-calculate it). The atmosphere model appears in the atmosphere_data array in environment.cxx, and can easily be extended into the upper stratosphere and beyond. These are not yet tied into the FDMs or steam module.
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class SGInterpTable;
Initial take of new environment subsystem. Configure with --use-new-environment to active it.
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/**
* Model the natural environment.
*
* This class models the natural environment at a specific place and
* time. A separate instance is necessary for each location or time.
*
* This class should eventually move to SimGear.
*/
Added FGEnvironmentMgr to provide information on the environment in different locations, and hitched it into FGGlobals. FGEnvironmentMgr has taken over as the subsystem, while FGEnvironment is simple the information that it returns. I've removed current_environment completely -- everything now uses properties or goes through FGGlobals. FGGlobals itself has a couple of useful methods: const FGEnvironment * get_environment (); const FGEnvironment * get_environment (double lat, double lon, double alt); The first one returns the environment data for the plane's current position, while the second returns the environment data for any arbitrary location. Currently, they both return the same information, but that will change soon.
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class FGEnvironment
Initial take of new environment subsystem. Configure with --use-new-environment to active it.
2002-02-19 14:21:19 +00:00
{
public:
FGEnvironment();
Environment manager overhaul -- return a copy of an FGEnvironment object rather than a pointer. FGEnvironment now has the beginning of an atmospheric model, and will recalculate temperature (not pressure or density, yet) based on elevation. FGEnvironment has a copy constructor.
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FGEnvironment (const FGEnvironment &environment);
Initial take of new environment subsystem. Configure with --use-new-environment to active it.
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virtual ~FGEnvironment();
General cleanups to cut cross-dependencies and speed up compilation. Added two new properties: /environment/temperature-sea-level-degc /environment/pressure-sea-level-inhg These are now supported in FGEnvironment as well, though they always have the same value for now. They need to be hooked up to the FDMs.
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virtual double get_visibility_m () const;
Finished off the atmosphere model (Troposphere and lower Stratosphere). The atmospheric properties are as follow: /environment/temperature-sea-level-degc /environment/temperature-degc /environment/pressure-sea-level-inhg /environment/pressure-inhg /environment/density-sea-level-slugft3 /environment/density-slugft3 Setting either the sea-level or altitude value automatically sets the other value appropriate, except for temperature at altitude above the Troposphere (where there's no reliable way to back-calculate it). The atmosphere model appears in the atmosphere_data array in environment.cxx, and can easily be extended into the upper stratosphere and beyond. These are not yet tied into the FDMs or steam module.
2002-05-15 03:00:41 +00:00
General cleanups to cut cross-dependencies and speed up compilation. Added two new properties: /environment/temperature-sea-level-degc /environment/pressure-sea-level-inhg These are now supported in FGEnvironment as well, though they always have the same value for now. They need to be hooked up to the FDMs.
2002-02-22 23:37:45 +00:00
virtual double get_temperature_sea_level_degc () const;
Environment manager overhaul -- return a copy of an FGEnvironment object rather than a pointer. FGEnvironment now has the beginning of an atmospheric model, and will recalculate temperature (not pressure or density, yet) based on elevation. FGEnvironment has a copy constructor.
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virtual double get_temperature_degc () const;
General cleanups to cut cross-dependencies and speed up compilation. Added two new properties: /environment/temperature-sea-level-degc /environment/pressure-sea-level-inhg These are now supported in FGEnvironment as well, though they always have the same value for now. They need to be hooked up to the FDMs.
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virtual double get_pressure_sea_level_inhg () const;
Environment manager overhaul -- return a copy of an FGEnvironment object rather than a pointer. FGEnvironment now has the beginning of an atmospheric model, and will recalculate temperature (not pressure or density, yet) based on elevation. FGEnvironment has a copy constructor.
2002-05-11 23:23:42 +00:00
virtual double get_pressure_inhg () const;
Finished off the atmosphere model (Troposphere and lower Stratosphere). The atmospheric properties are as follow: /environment/temperature-sea-level-degc /environment/temperature-degc /environment/pressure-sea-level-inhg /environment/pressure-inhg /environment/density-sea-level-slugft3 /environment/density-slugft3 Setting either the sea-level or altitude value automatically sets the other value appropriate, except for temperature at altitude above the Troposphere (where there's no reliable way to back-calculate it). The atmosphere model appears in the atmosphere_data array in environment.cxx, and can easily be extended into the upper stratosphere and beyond. These are not yet tied into the FDMs or steam module.
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virtual double get_density_sea_level_slugft3 () const;
virtual double get_density_slugft3 () const;
General cleanups to cut cross-dependencies and speed up compilation. Added two new properties: /environment/temperature-sea-level-degc /environment/pressure-sea-level-inhg These are now supported in FGEnvironment as well, though they always have the same value for now. They need to be hooked up to the FDMs.
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virtual double get_wind_from_heading_deg () const;
virtual double get_wind_speed_kt () const;
virtual double get_wind_from_north_fps () const;
virtual double get_wind_from_east_fps () const;
virtual double get_wind_from_down_fps () const;
Initial take of new environment subsystem. Configure with --use-new-environment to active it.
2002-02-19 14:21:19 +00:00
virtual void set_visibility_m (double v);
Finished off the atmosphere model (Troposphere and lower Stratosphere). The atmospheric properties are as follow: /environment/temperature-sea-level-degc /environment/temperature-degc /environment/pressure-sea-level-inhg /environment/pressure-inhg /environment/density-sea-level-slugft3 /environment/density-slugft3 Setting either the sea-level or altitude value automatically sets the other value appropriate, except for temperature at altitude above the Troposphere (where there's no reliable way to back-calculate it). The atmosphere model appears in the atmosphere_data array in environment.cxx, and can easily be extended into the upper stratosphere and beyond. These are not yet tied into the FDMs or steam module.
2002-05-15 03:00:41 +00:00
General cleanups to cut cross-dependencies and speed up compilation. Added two new properties: /environment/temperature-sea-level-degc /environment/pressure-sea-level-inhg These are now supported in FGEnvironment as well, though they always have the same value for now. They need to be hooked up to the FDMs.
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virtual void set_temperature_sea_level_degc (double t);
Environment manager overhaul -- return a copy of an FGEnvironment object rather than a pointer. FGEnvironment now has the beginning of an atmospheric model, and will recalculate temperature (not pressure or density, yet) based on elevation. FGEnvironment has a copy constructor.
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virtual void set_temperature_degc (double t);
General cleanups to cut cross-dependencies and speed up compilation. Added two new properties: /environment/temperature-sea-level-degc /environment/pressure-sea-level-inhg These are now supported in FGEnvironment as well, though they always have the same value for now. They need to be hooked up to the FDMs.
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virtual void set_pressure_sea_level_inhg (double p);
Environment manager overhaul -- return a copy of an FGEnvironment object rather than a pointer. FGEnvironment now has the beginning of an atmospheric model, and will recalculate temperature (not pressure or density, yet) based on elevation. FGEnvironment has a copy constructor.
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virtual void set_pressure_inhg (double p);
Finished off the atmosphere model (Troposphere and lower Stratosphere). The atmospheric properties are as follow: /environment/temperature-sea-level-degc /environment/temperature-degc /environment/pressure-sea-level-inhg /environment/pressure-inhg /environment/density-sea-level-slugft3 /environment/density-slugft3 Setting either the sea-level or altitude value automatically sets the other value appropriate, except for temperature at altitude above the Troposphere (where there's no reliable way to back-calculate it). The atmosphere model appears in the atmosphere_data array in environment.cxx, and can easily be extended into the upper stratosphere and beyond. These are not yet tied into the FDMs or steam module.
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virtual void set_density_sea_level_slugft3 (double d);
virtual void set_density_slugft3 (double d);
Initial take of new environment subsystem. Configure with --use-new-environment to active it.
2002-02-19 14:21:19 +00:00
virtual void set_wind_from_heading_deg (double h);
virtual void set_wind_speed_kt (double s);
virtual void set_wind_from_north_fps (double n);
virtual void set_wind_from_east_fps (double e);
virtual void set_wind_from_down_fps (double d);
Environment manager overhaul -- return a copy of an FGEnvironment object rather than a pointer. FGEnvironment now has the beginning of an atmospheric model, and will recalculate temperature (not pressure or density, yet) based on elevation. FGEnvironment has a copy constructor.
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protected:
friend class FGEnvironmentMgr;
virtual double get_elevation_ft () const;
virtual void set_elevation_ft (double elevation_ft);
Initial take of new environment subsystem. Configure with --use-new-environment to active it.
2002-02-19 14:21:19 +00:00
private:
Finished off the atmosphere model (Troposphere and lower Stratosphere). The atmospheric properties are as follow: /environment/temperature-sea-level-degc /environment/temperature-degc /environment/pressure-sea-level-inhg /environment/pressure-inhg /environment/density-sea-level-slugft3 /environment/density-slugft3 Setting either the sea-level or altitude value automatically sets the other value appropriate, except for temperature at altitude above the Troposphere (where there's no reliable way to back-calculate it). The atmosphere model appears in the atmosphere_data array in environment.cxx, and can easily be extended into the upper stratosphere and beyond. These are not yet tied into the FDMs or steam module.
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void _setup_tables ();
Initial take of new environment subsystem. Configure with --use-new-environment to active it.
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void _recalc_hdgspd ();
void _recalc_ne ();
Finished off the atmosphere model (Troposphere and lower Stratosphere). The atmospheric properties are as follow: /environment/temperature-sea-level-degc /environment/temperature-degc /environment/pressure-sea-level-inhg /environment/pressure-inhg /environment/density-sea-level-slugft3 /environment/density-slugft3 Setting either the sea-level or altitude value automatically sets the other value appropriate, except for temperature at altitude above the Troposphere (where there's no reliable way to back-calculate it). The atmosphere model appears in the atmosphere_data array in environment.cxx, and can easily be extended into the upper stratosphere and beyond. These are not yet tied into the FDMs or steam module.
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void _recalc_sl_temperature ();
void _recalc_alt_temperature ();
void _recalc_sl_pressure ();
void _recalc_alt_pressure ();
void _recalc_sl_density ();
void _recalc_alt_density ();
SGInterpTable * _temperature_degc_table;
SGInterpTable * _pressure_inhg_table;
SGInterpTable * _density_slugft3_table;
Environment manager overhaul -- return a copy of an FGEnvironment object rather than a pointer. FGEnvironment now has the beginning of an atmospheric model, and will recalculate temperature (not pressure or density, yet) based on elevation. FGEnvironment has a copy constructor.
2002-05-11 23:23:42 +00:00
double elevation_ft;
Initial take of new environment subsystem. Configure with --use-new-environment to active it.
2002-02-19 14:21:19 +00:00
double visibility_m;
Finished off the atmosphere model (Troposphere and lower Stratosphere). The atmospheric properties are as follow: /environment/temperature-sea-level-degc /environment/temperature-degc /environment/pressure-sea-level-inhg /environment/pressure-inhg /environment/density-sea-level-slugft3 /environment/density-slugft3 Setting either the sea-level or altitude value automatically sets the other value appropriate, except for temperature at altitude above the Troposphere (where there's no reliable way to back-calculate it). The atmosphere model appears in the atmosphere_data array in environment.cxx, and can easily be extended into the upper stratosphere and beyond. These are not yet tied into the FDMs or steam module.
2002-05-15 03:00:41 +00:00
// Atmosphere
General cleanups to cut cross-dependencies and speed up compilation. Added two new properties: /environment/temperature-sea-level-degc /environment/pressure-sea-level-inhg These are now supported in FGEnvironment as well, though they always have the same value for now. They need to be hooked up to the FDMs.
2002-02-22 23:37:45 +00:00
double temperature_sea_level_degc;
Environment manager overhaul -- return a copy of an FGEnvironment object rather than a pointer. FGEnvironment now has the beginning of an atmospheric model, and will recalculate temperature (not pressure or density, yet) based on elevation. FGEnvironment has a copy constructor.
2002-05-11 23:23:42 +00:00
double temperature_degc;
General cleanups to cut cross-dependencies and speed up compilation. Added two new properties: /environment/temperature-sea-level-degc /environment/pressure-sea-level-inhg These are now supported in FGEnvironment as well, though they always have the same value for now. They need to be hooked up to the FDMs.
2002-02-22 23:37:45 +00:00
double pressure_sea_level_inhg;
Environment manager overhaul -- return a copy of an FGEnvironment object rather than a pointer. FGEnvironment now has the beginning of an atmospheric model, and will recalculate temperature (not pressure or density, yet) based on elevation. FGEnvironment has a copy constructor.
2002-05-11 23:23:42 +00:00
double pressure_inhg;
Finished off the atmosphere model (Troposphere and lower Stratosphere). The atmospheric properties are as follow: /environment/temperature-sea-level-degc /environment/temperature-degc /environment/pressure-sea-level-inhg /environment/pressure-inhg /environment/density-sea-level-slugft3 /environment/density-slugft3 Setting either the sea-level or altitude value automatically sets the other value appropriate, except for temperature at altitude above the Troposphere (where there's no reliable way to back-calculate it). The atmosphere model appears in the atmosphere_data array in environment.cxx, and can easily be extended into the upper stratosphere and beyond. These are not yet tied into the FDMs or steam module.
2002-05-15 03:00:41 +00:00
double density_sea_level_slugft3;
double density_slugft3;
Initial take of new environment subsystem. Configure with --use-new-environment to active it.
2002-02-19 14:21:19 +00:00
double wind_from_heading_deg;
double wind_speed_kt;
double wind_from_north_fps;
double wind_from_east_fps;
double wind_from_down_fps;
};
#endif // _ENVIRONMENT_HXX
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