// forward decls
class SGInterpTable;
+class SGSampleGroup;
class FGNavRecord;
typedef SGSharedPtr<FGNavRecord> FGNavRecordPtr;
SGInterpTable *low_tbl;
SGInterpTable *high_tbl;
+ SGPropertyNode_ptr _radio_node;
SGPropertyNode_ptr lon_node;
SGPropertyNode_ptr lat_node;
SGPropertyNode_ptr alt_node;
SGPropertyNode_ptr cdi_serviceable_node;
SGPropertyNode_ptr gs_serviceable_node;
SGPropertyNode_ptr tofrom_serviceable_node;
-
+ SGPropertyNode_ptr dme_serviceable_node;
+
// property outputs
SGPropertyNode_ptr fmt_freq_node; // formated frequency
SGPropertyNode_ptr fmt_alt_freq_node; // formated alternate frequency
SGPropertyNode_ptr loc_node;
SGPropertyNode_ptr loc_dist_node;
SGPropertyNode_ptr gs_deflection_node;
+ SGPropertyNode_ptr gs_deflection_deg_node;
SGPropertyNode_ptr gs_deflection_norm_node;
SGPropertyNode_ptr gs_rate_of_climb_node;
+ SGPropertyNode_ptr gs_rate_of_climb_fpm_node;
SGPropertyNode_ptr gs_dist_node;
+ SGPropertyNode_ptr gs_inrange_node;
SGPropertyNode_ptr nav_id_node;
SGPropertyNode_ptr id_c1_node;
SGPropertyNode_ptr id_c2_node;
SGPropertyNode_ptr gps_to_flag_node;
SGPropertyNode_ptr gps_from_flag_node;
SGPropertyNode_ptr gps_has_gs_node;
+ SGPropertyNode_ptr gps_course_node;
+ SGPropertyNode_ptr gps_xtrack_error_nm_node;
+ SGPropertyNode_ptr _magvarNode;
+
+ // realism setting, are false courses and GS lobes enabled?
+ SGPropertyNode_ptr falseCoursesEnabledNode;
// internal (private) values
+ bool _operable; ///< is the unit serviceable, on, powered, etc
int play_count;
time_t last_time;
FGNavRecordPtr _navaid;
string nav_fx_name;
string dme_fx_name;
- bool has_dme;
double target_radial;
- SGVec3d gs_base_vec;
SGTimeStamp prev_time;
SGTimeStamp curr_time;
double effective_range;
double last_x;
double last_loc_dist;
double last_xtrack_error;
-
+ double xrate_ms;
+ double _localizerWidth; // cached localizer width in degrees
+
string _name;
int _num;
// internal periodic station search timer
double _time_before_search_sec;
+ SGVec3d _gsCart, _gsAxis, _gsVertical;
+
+ FGNavRecordPtr _dme;
+ bool _dmeInRange;
+
// CDI properties
bool _toFlag, _fromFlag;
double _cdiDeflection;
double _gsNeedleDeflection;
double _gsNeedleDeflectionNorm;
+ SGSharedPtr<SGSampleGroup> _sgr;
+ std::vector<SGPropertyNode_ptr> _tiedNodes;
+
bool updateWithPower(double aDt);
// model standard VOR/DME/TACAN service volumes as per AIM 1-1-8
void audioNavidChanged();
void updateReceiver(double dt);
+ void updateDME(const SGVec3d& aircraft);
void updateGlideSlope(double dt, const SGVec3d& aircraft, double signal_quality_norm);
void updateGPSSlaved();
void updateCDI(double dt);
void clearOutputs();
+ /**
+ * Compute the localizer width in degrees - see implementation for
+ * more information on the relevant standards and formulae.
+ */
+ double localizerWidth(FGNavRecord* aLOC);
FGNavRecord* findPrimaryNavaid(const SGGeod& aPos, double aFreqMHz);
+
+ /// accessor for tied, read-only 'operable' property
+ bool isOperable() const
+ { return _operable; }
+
+ /**
+ * Tied-properties helper, record nodes which are tied for easy un-tie-ing
+ */
+ template <typename T>
+ void tie(const char* aRelPath, const SGRawValue<T>& aRawValue)
+ {
+ SGPropertyNode_ptr nd = _radio_node->getNode(aRelPath, true);
+ _tiedNodes.push_back(nd);
+ nd->tie(aRawValue);
+ }
public:
FGNavRadio(SGPropertyNode *node);