AirPressureSensor Class Reference

AirPressure Sensor Class. More...

#include <AirPressureSensor.hh>

Public Member Functions
	AirPressureSensor ()
	constructor
virtual	~AirPressureSensor ()
	destructor
virtual bool	HasConnections () const override
	Check if there are any subscribers.
virtual bool	Init () override
	Initialize values in the sensor.
virtual bool	Load (const sdf::Sensor &_sdf) override
	Load the sensor based on data from an sdf::Sensor object.
virtual bool	Load (sdf::ElementPtr _sdf) override
	Load the sensor with SDF parameters.
double	ReferenceAltitude () const
	Get the vertical reference altitude.
void	SetReferenceAltitude (double _reference)
	Set the reference altitude.
virtual bool	Update (const std::chrono::steady_clock::duration &_now) override
	Update the sensor and generate data.
virtual bool	Update (const std::chrono::steady_clock::duration &_now)=0
	Force the sensor to generate data.
bool	Update (const std::chrono::steady_clock::duration &_now, const bool _force)
	Update the sensor.
Public Member Functions inherited from Sensor
virtual	~Sensor ()
	destructor
void	AddSequence (gz::msgs::Header *_msg, const std::string &_seqKey="default")
	Add a sequence number to a gz::msgs::Header. This function can be called by a sensor that wants to add a sequence number to a sensor message in order to have improved accountability for generated sensor data.
bool	EnableMetrics () const
	Get flag state for enabling performance metrics publication.
std::string	FrameId () const
	FrameId.
bool	HasPendingTrigger () const
	Whether the sensor has a pending trigger.
SensorId	Id () const
	Get the sensor's ID.
bool	IsActive () const
	Get whether the sensor is enabled or not.
bool	IsTriggered () const
	Whether the sensor trigger mode is enabled.
std::string	Name () const
	Get name.
std::chrono::steady_clock::duration	NextDataUpdateTime () const
	Return the next time the sensor will generate data.
std::string	Parent () const
	Get parent link of the sensor.
gz::math::Pose3d	Pose () const
	Get the current pose.
void	PublishMetrics (const std::chrono::duration< double > &_now)
	Publishes information about the performance of the sensor. This method is called by Update().
sdf::ElementPtr	SDF () const
	Get the SDF used to load this sensor.
void	SetActive (bool _active)
	Enable or disable the sensor. Disabled sensors will not generate or publish data unless Update is called with the '_force' argument set to true.
void	SetEnableMetrics (bool _enableMetrics)
	Set flag to enable publishing performance metrics.
void	SetFrameId (const std::string &_frameId)
	Set Frame ID of the sensor.
void	SetNextDataUpdateTime (const std::chrono::steady_clock::duration &_time)
	Manually set the next time the sensor will generate data Useful for accomodating jumps backwards in time as well as specifying updates for non-uniformly updating sensors.
virtual void	SetParent (const std::string &_parent)
	Set the parent of the sensor.
void	SetPose (const gz::math::Pose3d &_pose)
	Update the pose of the sensor.
bool	SetTopic (const std::string &_topic)
	Set topic where sensor data is published.
bool	SetTriggered (bool _triggered, const std::string &_triggerTopic="")
	Enable or disable triggered mode. In this mode,.
void	SetUpdateRate (const double _hz)
	Set the update rate of the sensor. An update rate of zero means that the sensor is updated every cycle. It's zero by default.
std::string	Topic () const
	Get topic where sensor data is published.
bool	Update (const std::chrono::steady_clock::duration &_now, const bool _force)
	Update the sensor.
double	UpdateRate () const
	Get the update rate of the sensor.

Additional Inherited Members
Protected Member Functions inherited from Sensor
	Sensor ()
	constructor

Detailed Description

AirPressure Sensor Class.

A sensor that reports air pressure readings.

Constructor & Destructor Documentation

AirPressureSensor()

AirPressureSensor

(

)

constructor

~AirPressureSensor()

virtual ~AirPressureSensor ( )

virtual

destructor

Member Function Documentation

HasConnections()

virtual bool HasConnections ( ) const

overridevirtual

Check if there are any subscribers.

Returns

True if there are subscribers, false otherwise

Reimplemented from Sensor.

Init()

virtual bool Init ( )

overridevirtual

Initialize values in the sensor.

Returns

True on success

Reimplemented from Sensor.

Load() [1/2]

virtual bool Load ( const sdf::Sensor &  _sdf )

overridevirtual

Load the sensor based on data from an sdf::Sensor object.

Parameters

[in]

_sdf

SDF Sensor parameters.

Returns

true if loading was successful

Reimplemented from Sensor.

Load() [2/2]

virtual bool Load ( sdf::ElementPtr  _sdf )

overridevirtual

Load the sensor with SDF parameters.

Parameters

[in]

_sdf

SDF Sensor parameters.

Returns

true if loading was successful

Reimplemented from Sensor.

ReferenceAltitude()

double ReferenceAltitude

(

)

const

Get the vertical reference altitude.

Returns

Verical reference position in meters

SetReferenceAltitude()

void SetReferenceAltitude

(

double

_reference

)

Set the reference altitude.

Parameters

[in]

_reference

Verical reference position in meters

Update() [1/3]

virtual bool Update ( const std::chrono::steady_clock::duration &  _now )

overridevirtual

Update the sensor and generate data.

Parameters

[in]

_now

The current time

Returns

true if the update was successfull

Implements Sensor.

Update() [2/3]

virtual bool Update ( const std::chrono::steady_clock::duration &  _now )

virtual

Force the sensor to generate data.

This method must be overridden by sensors. Subclasses should not not make a decision about whether or not they need to update. The Sensor class will make sure Update() is called at the correct time.

If a subclass wants to have a variable update rate it should call SetUpdateRate().

A subclass should return false if there was an error while updating

Parameters

[in]

_now

The current time

Returns

true if the update was successfull

See also

SetUpdateRate()

Implements Sensor.

Update() [3/3]

bool Update	(	const std::chrono::steady_clock::duration &	_now,
		const bool	_force
	)

Update the sensor.

This is called by the manager, and is responsible for determining if this sensor needs to generate data at this time. If so, the subclasses' Update() method will be called.

Parameters

[in]	_now	The current time
[in]	_force	Force the update to happen even if it's not time

Returns

True if the update was performed (_force was true or _now >= next_update_time or sensor had a pending trigger) and the sensor's bool Sensor::Update(std::chrono::steady_clock::time_point) function returned true. False otherwise.

Remarks

If forced the NextUpdateTime() will be unchanged.

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

• AirPressureSensor.hh