Detailed Description

Implements the output to a socket.

This class outputs data to a socket according to the JSBSim format. It can be inherited as a generic class that provides services for socket outputs. For instance FGOutputFG inherits FGOutputSocket for the socket management but outputs data with a format different than FGOutputSocket.

Definition at line 66 of file FGOutputSocket.h.

#include <FGOutputSocket.h>

Inheritance diagram for FGOutputSocket:

Collaboration diagram for FGOutputSocket:

Public Member Functions
	FGOutputSocket (FGFDMExec *fdmex)
	Constructor.

	~FGOutputSocket () override
	Destructor.

bool	InitModel (void) override
	Initializes the instance. More...

bool	Load (Element *el) override
	Init the output directives from an XML file. More...

void	Print (void) override
	Generates the output.

void	SetOutputName (const std::string &name) override
	Overwrites the name identifier under which the output will be logged. More...

void	SocketStatusOutput (const std::string &out_str)
	Outputs a status thru the socket. More...

Public Member Functions inherited from FGOutputType
	FGOutputType (FGFDMExec *fdmex)
	Constructor (implement the FGModel interface). More...

	~FGOutputType () override
	Destructor.

void	Disable (void)
	Disables the output generation.

void	Enable (void)
	Enables the output generation.

virtual const std::string &	GetOutputName (void) const
	Get the name identifier to which the output will be directed. More...

double	GetRateHz (void) const
	Get the output rate in Hz for this output.

bool	InitModel (void) override
	Init the output model according to its configitation.

bool	Load (Element *el) override
	Init the output directives from an XML file (implement the FGModel interface). More...

bool	Run (void)
	Executes the output directives (implement the FGModel interface). More...

void	SetIdx (unsigned int idx)
	Set the idx for this output instance. More...

void	SetOutputProperties (std::vector< FGPropertyNode_ptr > &outputProperties)
	Set the list of properties that should be output for this output instance. More...

void	SetRateHz (double rtHz)
	Set the output rate for this output instances. More...

virtual void	SetStartNewOutput (void)
	Reset the output prior to a restart of the simulation. More...

void	SetSubSystems (int subSystems)
	Set the activated subsystems for this output instance. More...

bool	Toggle (void)
	Toggles the output generation. More...

Public Member Functions inherited from FGModel
	FGModel (FGFDMExec *)
	Constructor.

	~FGModel () override
	Destructor.

virtual SGPath	FindFullPathName (const SGPath &path) const

FGFDMExec *	GetExec (void)

const std::string &	GetName (void)

unsigned int	GetRate (void)
	Get the output rate for the model in frames.

virtual bool	Run (bool Holding)
	Runs the model; called by the Executive. More...

void	SetPropertyManager (FGPropertyManager *fgpm)

void	SetRate (unsigned int tt)
	Set the ouput rate for the model in frames.

Public Member Functions inherited from FGModelFunctions
std::string	GetFunctionStrings (const std::string &delimeter) const
	Gets the strings for the current set of functions. More...

std::string	GetFunctionValues (const std::string &delimeter) const
	Gets the function values. More...

FGFunction *	GetPreFunction (const std::string &name)
	Get one of the "pre" function. More...

bool	Load (Element el, FGFDMExec fdmex, std::string prefix="")

void	PostLoad (Element el, FGFDMExec fdmex, std::string prefix="")

void	PreLoad (Element el, FGFDMExec fdmex, std::string prefix="")

void	RunPostFunctions (void)

void	RunPreFunctions (void)

Public Member Functions inherited from FGJSBBase
	FGJSBBase ()
	Constructor for FGJSBBase.

virtual	~FGJSBBase ()
	Destructor for FGJSBBase.

void	PutMessage (const Message &msg)
	Places a Message structure on the Message queue. More...

void	PutMessage (const std::string &text)
	Creates a message with the given text and places it on the queue. More...

void	PutMessage (const std::string &text, bool bVal)
	Creates a message with the given text and boolean value and places it on the queue. More...

void	PutMessage (const std::string &text, int iVal)
	Creates a message with the given text and integer value and places it on the queue. More...

void	PutMessage (const std::string &text, double dVal)
	Creates a message with the given text and double value and places it on the queue. More...

int	SomeMessages (void) const
	Reads the message on the queue (but does not delete it). More...

void	ProcessMessage (void)
	Reads the message on the queue and removes it from the queue. More...

Message *	ProcessNextMessage (void)
	Reads the next message on the queue and removes it from the queue. More...

void	disableHighLighting (void)
	Disables highlighting in the console output.

Protected Member Functions
virtual void	PrintHeaders (void)

Protected Member Functions inherited from FGOutputType
void	Debug (int from) override

Protected Member Functions inherited from FGModel
bool	Upload (Element *el, bool preLoad)
	Uploads this model in memory. More...

Protected Attributes
int	precision

FGfdmSocket *	socket

std::string	SockName

unsigned int	SockPort

FGfdmSocket::ProtocolType	SockProtocol

Protected Attributes inherited from FGOutputType
FGAccelerations *	Accelerations

FGAerodynamics *	Aerodynamics

FGAircraft *	Aircraft

FGAtmosphere *	Atmosphere

FGAuxiliary *	Auxiliary

FGBuoyantForces *	BuoyantForces

bool	enabled

FGExternalReactions *	ExternalReactions

FGFCS *	FCS

FGGroundReactions *	GroundReactions

FGMassBalance *	MassBalance

std::vector< std::string >	OutputCaptions

unsigned int	OutputIdx

std::vector< FGPropertyValue * >	OutputParameters

FGPropagate *	Propagate

FGPropulsion *	Propulsion

int	SubSystems

FGWinds *	Winds

Protected Attributes inherited from FGModel
unsigned int	exe_ctr

FGFDMExec *	FDMExec

std::string	Name

FGPropertyManager *	PropertyManager

unsigned int	rate

Protected Attributes inherited from FGModelFunctions
FGPropertyReader	LocalProperties

std::vector< FGFunction * >	PostFunctions

std::vector< FGFunction * >	PreFunctions

Additional Inherited Members
Public Types inherited from FGOutputType
enum	eSubSystems { ssSimulation = 1, ssAerosurfaces = 2, ssRates = 4, ssVelocities = 8, ssForces = 16, ssMoments = 32, ssAtmosphere = 64, ssMassProps = 128, ssAeroFunctions = 256, ssPropagate = 512, ssGroundReactions = 1024, ssFCS = 2048, ssPropulsion = 4096 }
	Subsystem types for specifying which will be output in the FDM data logging. More...

Public Types inherited from FGJSBBase
enum	{ eL = 1, eM, eN }
	Moments L, M, N.

enum	{ eP = 1, eQ, eR }
	Rates P, Q, R.

enum	{ eU = 1, eV, eW }
	Velocities U, V, W.

enum	{ eX = 1, eY, eZ }
	Positions X, Y, Z.

enum	{ ePhi = 1, eTht, ePsi }
	Euler angles Phi, Theta, Psi.

enum	{ eDrag = 1, eSide, eLift }
	Stability axis forces, Drag, Side force, Lift.

enum	{ eRoll = 1, ePitch, eYaw }
	Local frame orientation Roll, Pitch, Yaw.

enum	{ eNorth = 1, eEast, eDown }
	Local frame position North, East, Down.

enum	{ eLat = 1, eLong, eRad }
	Locations Radius, Latitude, Longitude.

enum	{ inNone = 0, inDegrees, inRadians, inMeters, inFeet }
	Conversion specifiers.

Static Public Member Functions inherited from FGJSBBase
static const std::string &	GetVersion (void)
	Returns the version number of JSBSim. More...

static constexpr double	KelvinToFahrenheit (double kelvin)
	Converts from degrees Kelvin to degrees Fahrenheit. More...

static constexpr double	CelsiusToRankine (double celsius)
	Converts from degrees Celsius to degrees Rankine. More...

static constexpr double	RankineToCelsius (double rankine)
	Converts from degrees Rankine to degrees Celsius. More...

static constexpr double	KelvinToRankine (double kelvin)
	Converts from degrees Kelvin to degrees Rankine. More...

static constexpr double	RankineToKelvin (double rankine)
	Converts from degrees Rankine to degrees Kelvin. More...

static constexpr double	FahrenheitToCelsius (double fahrenheit)
	Converts from degrees Fahrenheit to degrees Celsius. More...

static constexpr double	CelsiusToFahrenheit (double celsius)
	Converts from degrees Celsius to degrees Fahrenheit. More...

static constexpr double	CelsiusToKelvin (double celsius)
	Converts from degrees Celsius to degrees Kelvin. More...

static constexpr double	KelvinToCelsius (double kelvin)
	Converts from degrees Kelvin to degrees Celsius. More...

static constexpr double	FeetToMeters (double measure)
	Converts from feet to meters. More...

static double	PitotTotalPressure (double mach, double p)
	Compute the total pressure in front of the Pitot tube. More...

static double	MachFromImpactPressure (double qc, double p)
	Compute the Mach number from the differential pressure (qc) and the static pressure. More...

static double	VcalibratedFromMach (double mach, double p)
	Calculate the calibrated airspeed from the Mach number. More...

static double	MachFromVcalibrated (double vcas, double p)
	Calculate the Mach number from the calibrated airspeed.Based on the formulas in the US Air Force Aircraft Performance Flight Testing Manual (AFFTC-TIH-99-01). More...

static bool	EqualToRoundoff (double a, double b)
	Finite precision comparison. More...

static bool	EqualToRoundoff (float a, float b)
	Finite precision comparison. More...

static bool	EqualToRoundoff (float a, double b)
	Finite precision comparison. More...

static bool	EqualToRoundoff (double a, float b)
	Finite precision comparison. More...

static constexpr double	Constrain (double min, double value, double max)
	Constrain a value between a minimum and a maximum value.

static constexpr double	sign (double num)

static double	GaussianRandomNumber (void)

Public Attributes inherited from FGOutputType
enum JSBSim::FGOutputType::eSubSystems	subsystems

Static Public Attributes inherited from FGJSBBase
static char	highint [5] = {27, '[', '1', 'm', '\0' }
	highlights text

static char	halfint [5] = {27, '[', '2', 'm', '\0' }
	low intensity text

static char	normint [6] = {27, '[', '2', '2', 'm', '\0' }
	normal intensity text

static char	reset [5] = {27, '[', '0', 'm', '\0' }
	resets text properties

static char	underon [5] = {27, '[', '4', 'm', '\0' }
	underlines text

static char	underoff [6] = {27, '[', '2', '4', 'm', '\0' }
	underline off

static char	fgblue [6] = {27, '[', '3', '4', 'm', '\0' }
	blue text

static char	fgcyan [6] = {27, '[', '3', '6', 'm', '\0' }
	cyan text

static char	fgred [6] = {27, '[', '3', '1', 'm', '\0' }
	red text

static char	fggreen [6] = {27, '[', '3', '2', 'm', '\0' }
	green text

static char	fgdef [6] = {27, '[', '3', '9', 'm', '\0' }
	default text

static short	debug_lvl = 1

Static Protected Member Functions inherited from FGJSBBase
static std::string	CreateIndexedPropertyName (const std::string &Property, int index)

Static Protected Attributes inherited from FGJSBBase
static Message	localMsg

static std::queue< Message >	Messages

static unsigned int	messageId = 0

static constexpr double	radtodeg = 180. / M_PI

static constexpr double	degtorad = M_PI / 180.

static constexpr double	hptoftlbssec = 550.0

static constexpr double	psftoinhg = 0.014138

static constexpr double	psftopa = 47.88

static constexpr double	ktstofps = 1.68781

static constexpr double	fpstokts = 1.0 / ktstofps

static constexpr double	inchtoft = 1.0/12.0

static constexpr double	fttom = 0.3048

static constexpr double	m3toft3 = 1.0/(fttomfttomfttom)

static constexpr double	in3tom3 = inchtoftinchtoftinchtoft/m3toft3

static constexpr double	inhgtopa = 3386.38

static constexpr double	slugtolb = 32.174049
	Note that definition of lbtoslug by the inverse of slugtolb and not to a different constant you can also get from some tables will make lbtoslug*slugtolb == 1 up to the magnitude of roundoff. More...

static constexpr double	lbtoslug = 1.0/slugtolb

static constexpr double	kgtolb = 2.20462

static constexpr double	kgtoslug = 0.06852168

static const std::string	needed_cfg_version = "2.0"

static const std::string	JSBSim_version = JSBSIM_VERSION " " __DATE__ " " __TIME__

static int	gaussian_random_number_phase = 0

Member Function Documentation

◆ InitModel()

bool InitModel ( void )

overridevirtual

Initializes the instance.

This method basically opens the socket to which outputs will be directed.

Returns: true if the execution succeeded.

Reimplemented from FGModel.

Definition at line 135 of file FGOutputSocket.cpp.

 {
   if (FGOutputType::InitModel()) {
     delete socket;
     socket = new FGfdmSocket(SockName, SockPort, SockProtocol, precision);
  
     if (socket == 0) return false;
     if (!socket->GetConnectStatus()) return false;
  
     PrintHeaders();
  
     return true;
   }
  
   return false;
 }

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◆ Load()

bool Load ( Element * el )

overridevirtual

Init the output directives from an XML file.

Parameters

element XML Element that is pointing to the output directives

Reimplemented from FGModel.

Definition at line 115 of file FGOutputSocket.cpp.

 {
   if (!FGOutputType::Load(el))
     return false;
  
   SetOutputName(el->GetAttributeValue("name") + ":" +
                 el->GetAttributeValue("protocol") + "/" +
                 el->GetAttributeValue("port"));
  
   // Check if output precision for doubles has been specified, default to 7 if not
   if(el->HasAttribute("precision"))
     precision = (int)el->GetAttributeValueAsNumber("precision");
   else
     precision = 7;
  
   return true;
 }

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◆ SetOutputName()

void SetOutputName ( const std::string & name )

overridevirtual

Overwrites the name identifier under which the output will be logged.

This method is taken into account if it is called before FGFDMExec::RunIC() otherwise it is ignored until the next call to SetStartNewOutput().

Parameters

name	new name in the form "hostname:port/proto" hostname could be an ip, port a numerical value and proto should be UDP or TCP (the default if omitted)

Reimplemented from FGOutputType.

Definition at line 83 of file FGOutputSocket.cpp.

 {
   // tokenize the output name
   size_t dot_pos = fname.find(':', 0);
   size_t slash_pos = fname.find('/', 0);
   
   string name = fname.substr(0, dot_pos);
   
   string proto = "TCP";
   if(dot_pos + 1 < slash_pos)
     proto = fname.substr(dot_pos + 1, slash_pos - dot_pos - 1);
   
   string port = "1138";
   if(slash_pos < string::npos)
     port = fname.substr(slash_pos + 1, string::npos);
   
   // set the model name
   Name = name + ":" + port + "/" + proto;
   
   // set the socket params
   SockName = name;
   
   SockPort = atoi(port.c_str());
   
   if (to_upper(proto) == "UDP")
     SockProtocol = FGfdmSocket::ptUDP;
   else // Default to TCP
     SockProtocol = FGfdmSocket::ptTCP;
 }

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◆ SocketStatusOutput()

void SocketStatusOutput ( const std::string & out_str )

Outputs a status thru the socket.

This method issues a message prepended by the string "<STATUS>" to the socket.

Parameters

out_str status message

Definition at line 392 of file FGOutputSocket.cpp.

 {
   string asciiData;
  
   if (socket == 0) return;
  
   socket->Clear();
   asciiData = string("<STATUS>") + out_str;
   socket->Append(asciiData.c_str());
   socket->Send();
 }

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

Detailed Description

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Member Function Documentation

◆ InitModel()

◆ Load()

◆ SetOutputName()

◆ SocketStatusOutput()