// update sky and lighting parameters
void fgUpdateSkyAndLightingParams();
-class FGMagVar {
-
-private:
-
- double magvar;
- double magdip;
-
-public:
-
- FGMagVar();
- ~FGMagVar();
-
- void update( double lon, double lat, double alt_m, double jd );
-
- double get_magvar() const { return magvar; }
- double get_magdip() const { return magdip; }
-};
-
-extern FGMagVar cur_magvar;
-
#endif // _LIGHT_HXX