FlightGear: GPS Class Reference

Model a GPS radio. More...

#include <gps.hxx>

Inherits SGSubsystem, flightgear::RNAV, and flightgear::FlightPlan::Delegate.

Public Member Functions
	GPS (SGPropertyNode *node, bool defaultGPSMode=false)

	GPS ()

virtual	~GPS ()

void	init () override

void	reinit () override

void	bind () override

void	unbind () override

void	update (double delta_time_sec) override

void	shutdown () override

SGGeod	position () override

double	trackDeg () override
	True track in degrees.

double	groundSpeedKts () override
	Ground speed (along the track) in knots.

double	vspeedFPM () override
	Vertical speed in ft/minute.

double	magvarDeg () override
	Magnetic variation at current position.

double	selectedMagCourse () override
	device selected course (eg, from autopilot / MCP / OBS) in degrees

double	overflightDistanceM () override
	minimum distance to switch next waypoint.

double	overflightArmDistanceM () override
	minimum distance to a waypoint for overflight sequencing.

double	overflightArmAngleDeg () override
	angle for overflight sequencing.

bool	canFlyBy () const override

double	maxFlyByTurnAngleDeg () const override
	maximum angle in degrees where flyBy is permitted.

std::optional< LegData >	previousLegData () override
	device leg previous waypoint position(eg, from route manager)

std::optional< double >	nextLegTrack () override

double	turnRadiusNm (double groundSpeedKnots) override
	compute the turn radius (based on standard rate turn) for a given ground speed in knots.

Public Member Functions inherited from flightgear::RNAV
double	turnRadiusNm ()
	compute turn radius based on current ground-speed

Public Member Functions inherited from flightgear::FlightPlan::Delegate
virtual	~Delegate ()

virtual void	departureChanged ()

virtual void	arrivalChanged ()

virtual void	cruiseChanged ()

virtual void	activated ()

virtual void	sequence ()
	Invoked when the C++ code determines the active leg is done / next leg should be sequenced.

virtual void	loaded ()

Static Public Member Functions
static const char *	staticSubsystemClassId ()

Friends
class	SearchFilter

Additional Inherited Members
Protected Member Functions inherited from flightgear::FlightPlan::Delegate
	Delegate ()

Detailed Description

Model a GPS radio.

Input properties:

/position/longitude-deg /position/latitude-deg /position/altitude-ft /environment/magnetic-variation-deg /systems/electrical/outputs/gps /instrumentation/gps/serviceable

Output properties:

/instrumentation/gps/indicated-longitude-deg /instrumentation/gps/indicated-latitude-deg /instrumentation/gps/indicated-altitude-ft /instrumentation/gps/indicated-vertical-speed-fpm /instrumentation/gps/indicated-track-true-deg /instrumentation/gps/indicated-track-magnetic-deg /instrumentation/gps/indicated-ground-speed-kt

/instrumentation/gps/wp-distance-nm /instrumentation/gps/wp-bearing-deg /instrumentation/gps/wp-bearing-mag-deg /instrumentation/gps/TTW /instrumentation/gps/course-deviation-deg /instrumentation/gps/course-error-nm /instrumentation/gps/to-flag /instrumentation/gps/odometer /instrumentation/gps/trip-odometer /instrumentation/gps/true-bug-error-deg /instrumentation/gps/magnetic-bug-error-deg

Definition at line 60 of file gps.hxx.

Constructor & Destructor Documentation

◆ GPS() [1/2]

GPS::GPS	(	SGPropertyNode *	node,
		bool	defaultGPSMode = false )

Definition at line 104 of file gps.cxx.

◆ GPS() [2/2]

GPS::GPS ( )

◆ ~GPS()

GPS::~GPS ( )

virtual

Definition at line 132 of file gps.cxx.

Member Function Documentation

◆ bind()

void GPS::bind ( )

override

Definition at line 188 of file gps.cxx.

◆ canFlyBy()

bool GPS::canFlyBy ( ) const

overridevirtual

Reimplemented from flightgear::RNAV.

Definition at line 536 of file gps.cxx.

◆ groundSpeedKts()

double GPS::groundSpeedKts ( )

overridevirtual

Ground speed (along the track) in knots.

Implements flightgear::RNAV.

Definition at line 460 of file gps.cxx.

◆ init()

void GPS::init ( )

override

Definition at line 137 of file gps.cxx.

◆ magvarDeg()

double GPS::magvarDeg ( )

overridevirtual

Magnetic variation at current position.

Implements flightgear::RNAV.

Definition at line 470 of file gps.cxx.

◆ maxFlyByTurnAngleDeg()

double GPS::maxFlyByTurnAngleDeg ( ) const

overridevirtual

maximum angle in degrees where flyBy is permitted.

Turns larger than this value will always be executed as fly-over to avoid a very large cut.

Reimplemented from flightgear::RNAV.

Definition at line 495 of file gps.cxx.

◆ nextLegTrack()

std::optional< double > GPS::nextLegTrack ( )

overridevirtual

Reimplemented from flightgear::RNAV.

Definition at line 500 of file gps.cxx.

◆ overflightArmAngleDeg()

double GPS::overflightArmAngleDeg ( )

overridevirtual

angle for overflight sequencing.

Implements flightgear::RNAV.

Definition at line 485 of file gps.cxx.

◆ overflightArmDistanceM()

double GPS::overflightArmDistanceM ( )

overridevirtual

minimum distance to a waypoint for overflight sequencing.

Implements flightgear::RNAV.

Definition at line 480 of file gps.cxx.

◆ overflightDistanceM()

double GPS::overflightDistanceM ( )

overridevirtual

minimum distance to switch next waypoint.

Implements flightgear::RNAV.

Definition at line 475 of file gps.cxx.

◆ position()

SGGeod GPS::position ( )

overridevirtual

Implements flightgear::RNAV.

Definition at line 446 of file gps.cxx.

◆ previousLegData()

std::optional< RNAV::LegData > GPS::previousLegData ( )

overridevirtual

device leg previous waypoint position(eg, from route manager)

Reimplemented from flightgear::RNAV.

Definition at line 509 of file gps.cxx.

◆ reinit()

void GPS::reinit ( )

override

Definition at line 182 of file gps.cxx.

◆ selectedMagCourse()

double GPS::selectedMagCourse ( )

overridevirtual

device selected course (eg, from autopilot / MCP / OBS) in degrees

Implements flightgear::RNAV.

Definition at line 490 of file gps.cxx.

◆ shutdown()

void GPS::shutdown ( )

override

Definition at line 387 of file gps.cxx.

◆ staticSubsystemClassId()

static const char * GPS::staticSubsystemClassId ( )

inlinestatic

Definition at line 78 of file gps.hxx.

◆ trackDeg()

double GPS::trackDeg ( )

overridevirtual

True track in degrees.

Implements flightgear::RNAV.

Definition at line 455 of file gps.cxx.

◆ turnRadiusNm()

double GPS::turnRadiusNm ( double groundSpeedKnots )

overridevirtual

compute the turn radius (based on standard rate turn) for a given ground speed in knots.

Implements flightgear::RNAV.

Definition at line 721 of file gps.cxx.

◆ unbind()

void GPS::unbind ( )

override

Definition at line 280 of file gps.cxx.

◆ update()

void GPS::update ( double delta_time_sec )

override

Definition at line 320 of file gps.cxx.

◆ vspeedFPM()

double GPS::vspeedFPM ( )

overridevirtual

Vertical speed in ft/minute.

Implements flightgear::RNAV.

Definition at line 465 of file gps.cxx.

Friends And Related Symbol Documentation

◆ SearchFilter

friend class SearchFilter

friend

Definition at line 99 of file gps.hxx.

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ GPS() [1/2]

◆ GPS() [2/2]

◆ ~GPS()

Member Function Documentation

◆ bind()

◆ canFlyBy()

◆ groundSpeedKts()

◆ init()

◆ magvarDeg()

◆ maxFlyByTurnAngleDeg()

◆ nextLegTrack()

◆ overflightArmAngleDeg()

◆ overflightArmDistanceM()

◆ overflightDistanceM()

◆ position()

◆ previousLegData()

◆ reinit()

◆ selectedMagCourse()

◆ shutdown()

◆ staticSubsystemClassId()

◆ trackDeg()

◆ turnRadiusNm()

◆ unbind()

◆ update()

◆ vspeedFPM()

Friends And Related Symbol Documentation

◆ SearchFilter