# include <math.h>
#endif
+class SGInterpTable;
+
/**
* Model the natural environment.
public:
FGEnvironment();
+ FGEnvironment (const FGEnvironment &environment);
virtual ~FGEnvironment();
virtual double get_visibility_m () const;
+
virtual double get_temperature_sea_level_degc () const;
+ virtual double get_temperature_degc () const;
+ virtual double get_dewpoint_sea_level_degc () const;
+ virtual double get_dewpoint_degc () const;
virtual double get_pressure_sea_level_inhg () const;
+ virtual double get_pressure_inhg () const;
+ virtual double get_density_slugft3 () const;
+
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_down_fps () const;
virtual void set_visibility_m (double v);
+
virtual void set_temperature_sea_level_degc (double t);
+ virtual void set_temperature_degc (double t);
+ virtual void set_dewpoint_sea_level_degc (double d);
+ virtual void set_dewpoint_degc (double d);
virtual void set_pressure_sea_level_inhg (double p);
+ virtual void set_pressure_inhg (double p);
+
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);
+protected:
+
+ friend class FGEnvironmentMgr;
+
+ virtual double get_elevation_ft () const;
+ virtual void set_elevation_ft (double elevation_ft);
+
private:
+ void _setup_tables ();
+
void _recalc_hdgspd ();
void _recalc_ne ();
+ void _recalc_sl_temperature ();
+ void _recalc_alt_temperature ();
+ void _recalc_sl_dewpoint ();
+ void _recalc_alt_dewpoint ();
+ void _recalc_sl_pressure ();
+ void _recalc_alt_pressure ();
+ void _recalc_density ();
+
+ SGInterpTable * _temperature_degc_table;
+ SGInterpTable * _pressure_inhg_table;
+
+ double elevation_ft;
+
double visibility_m;
+
+ // Atmosphere
double temperature_sea_level_degc;
+ double temperature_degc;
+ double dewpoint_sea_level_degc;
+ double dewpoint_degc;
double pressure_sea_level_inhg;
+ double pressure_inhg;
+ double density_slugft3;
double wind_from_heading_deg;
double wind_speed_kt;
double wind_from_east_fps;
double wind_from_down_fps;
- // Do these belong here?
-#if 0
- GLfloat fog_exp_density;
- GLfloat fog_exp2_density;
-#endif
-
};
#endif // _ENVIRONMENT_HXX