//
// 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.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
-// $Id$
#ifndef _ENVIRONMENT_CTRL_HXX
#define _ENVIRONMENT_CTRL_HXX
-#include <simgear/compiler.h>
#include <simgear/structure/subsystem_mgr.hxx>
-#include <simgear/environment/metar.hxx>
-#ifdef ENABLE_THREADS
-# include <simgear/threads/SGThread.hxx>
-# include <simgear/threads/SGQueue.hxx>
-#endif
-
-#ifdef SG_HAVE_STD_INCLUDES
-# include <cmath>
-#else
-# include <math.h>
-#endif
-
-#include <vector>
-
-SG_USING_STD(vector);
-
-class SGPropertyNode;
-
-#include "environment.hxx"
-
-
-\f
-/**
- * Interface to control environment information for a specific location.
- */
-class FGEnvironmentCtrl : public SGSubsystem
-{
-
-public:
-
- FGEnvironmentCtrl ();
- virtual ~FGEnvironmentCtrl ();
-
- virtual void setEnvironment (FGEnvironment * environment);
-
- virtual FGEnvironment * getEnvironment () const { return _environment; }
-
- virtual void setLongitudeDeg (double lon_deg);
- virtual void setLatitudeDeg (double lat_deg);
- virtual void setElevationFt (double elev_ft);
- virtual void setPosition (double lon_deg, double lat_deg, double elev_ft);
-
- virtual double getLongitudeDeg () const { return _lon_deg; }
- virtual double getLatitudeDeg () const { return _lat_deg; }
- virtual double getElevationFt () const { return _elev_ft; }
-
-protected:
-
- FGEnvironment * _environment;
- double _lon_deg;
- double _lat_deg;
- double _elev_ft;
-
-};
-
-
-\f
-/**
- * Environment controller using user-supplied parameters.
- */
-class FGUserDefEnvironmentCtrl : public FGEnvironmentCtrl
-{
-public:
- FGUserDefEnvironmentCtrl ();
- virtual ~FGUserDefEnvironmentCtrl ();
-
- virtual void init ();
- virtual void update (double dt);
-
-private:
-
- SGPropertyNode * _base_wind_speed_node;
- SGPropertyNode * _gust_wind_speed_node;
-
- double _current_wind_speed_kt;
- double _delta_wind_speed_kt;
-
-};
-
-
-\f
-/**
- * Interplation controller using user-supplied parameters.
- */
-class FGInterpolateEnvironmentCtrl : public FGEnvironmentCtrl
-{
-public:
- FGInterpolateEnvironmentCtrl ();
- virtual ~FGInterpolateEnvironmentCtrl ();
-
- virtual void init ();
- virtual void reinit ();
- virtual void update (double delta_time_sec);
-
-private:
-
- struct bucket {
- double altitude_ft;
- FGEnvironment environment;
- bool operator< (const bucket &b) const;
- };
-
- void read_table (const SGPropertyNode * node, vector<bucket *> &table);
- void do_interpolate (vector<bucket *> &table, double altitude_ft,
- FGEnvironment * environment);
-
- FGEnvironment env1, env2; // temporaries
-
- vector<bucket *> _boundary_table;
- vector<bucket *> _aloft_table;
-};
-
-
-\f
-/**
- * Interplation controller using the SGMetar class
- */
-class FGMetarEnvironmentCtrl : public FGEnvironmentCtrl
-{
-public:
- FGMetarEnvironmentCtrl ();
- virtual ~FGMetarEnvironmentCtrl ();
-
- virtual void init ();
- virtual void reinit ();
- virtual void update (double delta_time_sec);
-
- virtual void setEnvironment (FGEnvironment * environment);
-
-private:
- FGInterpolateEnvironmentCtrl *env;
-
- string _icao;
- float station_elevation_ft;
- float search_interval_sec;
- float same_station_interval_sec;
- float search_elapsed;
- float fetch_elapsed;
- FGAirport last_apt;
- SGPropertyNode *proxy_host;
- SGPropertyNode *proxy_port;
- SGPropertyNode *proxy_auth;
-
- bool fetch_data (const string &icao);
- void update_env_config();
-
-
-private:
-
-#ifdef ENABLE_THREADS
- /**
- * FIFO queue which holds a pointer to the fetched metar data.
- */
- SGBlockingQueue< SGMetar * > metar_queue;
-
- /**
- * This class represents the thread of execution responsible for
- * fetching the metar data.
- */
- class MetarThread : public SGThread
- {
+namespace Environment {
+ class LayerInterpolateController : public SGSubsystem {
public:
- MetarThread( FGMetarEnvironmentCtrl* f ) : fetcher(f) {}
- ~MetarThread() {}
-
- /**
- * Reads the tile from disk.
- */
- void run();
-
- private:
- FGMetarEnvironmentCtrl *fetcher;
-
- private:
- // not implemented.
- MetarThread();
- MetarThread( const MetarThread& );
- MetarThread& operator=( const MetarThread& );
+ static LayerInterpolateController * createInstance( SGPropertyNode_ptr rootNode );
};
-
- friend class MetarThread;
-
- /**
- * Metar data fetching thread.
- */
- MetarThread* thread;
-
- /**
- * Lock and synchronize access to metar queue.
- */
- SGMutex mutex;
- SGPthreadCond metar_cond;
-
- /**
- * Thread cleanup handler.
- */
- friend void metar_cleanup_handler( void* );
-#endif // ENABLE_THREADS
-};
+} // namespace
#endif // _ENVIRONMENT_CTRL_HXX
projects / flightgear.git / blobdiff