Convenient set of tools to read GPS position and accuracy. More...

#include <qgsquickpositionkit.h>

Inheritance diagram for QgsQuickPositionKit:

Signals
double	accuracyChanged () const
	GPS horizontal accuracy in accuracyUnits, -1 if not available. More...

Q_INVOKABLE QString	accuracyUnitsChanged () const
	GPS horizontal accuracy units - meters (constant) More...

double	directionChanged () const
	GPS direction, bearing in degrees clockwise from north to direction of travel. More...

void	hasPositionChanged ()
	hasPosition changed More...

void	isSimulatedChanged ()
	GPS position and accuracy is simulated (not real from GPS sensor). More...

void	mapSettingsChanged ()
	Associated map settings. More...

void	positionChanged ()
	GPS position in WGS84 coords. More...

void	projectedPositionChanged ()
	GPS position in map coords. More...

double	screenAccuracyChanged () const
	Screen horizontal accuracy, 2 if not available or resolution is too small. More...

void	screenPositionChanged ()
	GPS position in device coords (pixels). More...

void	simulatePositionLongLatRadChanged (QVector< double > simulatePositionLongLatRad)
	Uses of GPS and simulated position and sets its parameters. More...

void	sourceChanged ()
	Emitted when the internal source of GPS location data has been replaced. More...

Public Member Functions
	QgsQuickPositionKit (QObject *parent=nullptr)
	Creates new position kit. More...

double	accuracy () const
	GPS horizontal accuracy in accuracyUnits, -1 if not available. More...

QgsUnitTypes::DistanceUnit	accuracyUnits () const
	GPS horizontal accuracy units - meters (constant) More...

double	direction () const
	GPS direction, bearing in degrees clockwise from north to direction of travel. More...

bool	hasPosition () const
	GPS position in WGS84 coords. More...

bool	isSimulated () const
	GPS position and accuracy is simulated (not real from GPS sensor). More...

QgsQuickMapSettings *	mapSettings () const
	Associated map settings. More...

QgsPoint	position () const
	GPS position in WGS84 coords. More...

Q_INVOKABLE QgsCoordinateReferenceSystem	positionCRS () const
	Coordinate reference system of position - WGS84 (constant) More...

QgsPoint	projectedPosition () const
	GPS position in map coords. More...

double	screenAccuracy () const
	Screen horizontal accuracy, 2 if not available or resolution is too small. More...

QPointF	screenPosition () const
	GPS position in device coords (pixels). More...

void	setMapSettings (QgsQuickMapSettings *mapSettings)
	Associated map settings. More...

void	setSimulatePositionLongLatRad (const QVector< double > &simulatePositionLongLatRad)
	Uses of GPS and simulated position and sets its parameters. More...

QVector< double >	simulatePositionLongLatRad () const
	Uses of GPS and simulated position and sets its parameters. More...

QGeoPositionInfoSource *	source () const
	Returns pointer to the internal QGeoPositionInfoSource object used to receive GPS location. More...

Q_INVOKABLE void	useGpsLocation ()
	Use real GPS source (not simulated) More...

Q_INVOKABLE void	useSimulatedLocation (double longitude, double latitude, double radius)
	Use simulated GPS source. More...

Properties
double	accuracy
	GPS horizontal accuracy in accuracyUnits, -1 if not available. More...

double	direction
	GPS direction, bearing in degrees clockwise from north to direction of travel. More...

bool	hasPosition
	GPS position is available (position property is a valid number). More...

bool	isSimulated
	GPS position and accuracy is simulated (not real from GPS sensor). More...

QgsQuickMapSettings	mapSettings
	Associated map settings. More...

QgsPoint	position
	GPS position in WGS84 coords. More...

QgsPoint	projectedPosition
	GPS position in map coords. More...

double	screenAccuracy
	Screen horizontal accuracy, 2 if not available or resolution is too small. More...

QPointF	screenPosition
	GPS position in device coords (pixels). More...

QVector< double >	simulatePositionLongLatRad
	Uses of GPS and simulated position and sets its parameters. More...

QGeoPositionInfoSource	source
	Internal source of GPS location data. More...

Detailed Description

Convenient set of tools to read GPS position and accuracy.

Also, if one can use use_simulated_location to specify simulated position. Simulated position source generates random points in circles around the selected point and radius. Real GPS position is not used in this mode.

Note: QML Type: PositionKit

Since: QGIS 3.4

Definition at line 40 of file qgsquickpositionkit.h.

Constructor & Destructor Documentation

◆ QgsQuickPositionKit()

QgsQuickPositionKit::QgsQuickPositionKit ( QObject * parent = nullptr )

explicit

Creates new position kit.

Definition at line 26 of file qgsquickpositionkit.cpp.

Member Function Documentation

◆ accuracy()

double QgsQuickPositionKit::accuracy ( ) const

GPS horizontal accuracy in accuracyUnits, -1 if not available.

This is a readonly property.

◆ accuracyChanged

double QgsQuickPositionKit::accuracyChanged ( ) const

signal

GPS horizontal accuracy in accuracyUnits, -1 if not available.

This is a readonly property.

◆ accuracyUnits()

QgsUnitTypes::DistanceUnit QgsQuickPositionKit::accuracyUnits ( ) const

GPS horizontal accuracy units - meters (constant)

Definition at line 302 of file qgsquickpositionkit.cpp.

◆ accuracyUnitsChanged

Q_INVOKABLE QString QgsQuickPositionKit::accuracyUnitsChanged ( ) const

signal

GPS horizontal accuracy units - meters (constant)

◆ direction()

double QgsQuickPositionKit::direction ( ) const

GPS direction, bearing in degrees clockwise from north to direction of travel.

-1 if not available

This is a readonly property.

◆ directionChanged

double QgsQuickPositionKit::directionChanged ( ) const

signal

GPS direction, bearing in degrees clockwise from north to direction of travel.

-1 if not available

This is a readonly property.

◆ hasPosition()

bool QgsQuickPositionKit::hasPosition ( ) const

GPS position in WGS84 coords.

This is a readonly property.

◆ hasPositionChanged

void QgsQuickPositionKit::hasPositionChanged ( )

signal

hasPosition changed

◆ isSimulated()

bool QgsQuickPositionKit::isSimulated ( ) const

GPS position and accuracy is simulated (not real from GPS sensor).

Default false (use real GPS)

This is a readonly property. To change to simulated position, see QgsQuickPositionKit::simulatePositionLongLatRad

◆ isSimulatedChanged

void QgsQuickPositionKit::isSimulatedChanged ( )

signal

GPS position and accuracy is simulated (not real from GPS sensor).

Default false (use real GPS)

This is a readonly property. To change to simulated position, see QgsQuickPositionKit::simulatePositionLongLatRad

◆ mapSettings()

QgsQuickMapSettings* QgsQuickPositionKit::mapSettings ( ) const

Associated map settings.

Should be initialized before the first use from mapcanvas map settings.

This is a readonly property.

◆ mapSettingsChanged

void QgsQuickPositionKit::mapSettingsChanged ( )

signal

Associated map settings.

Should be initialized before the first use from mapcanvas map settings.

This is a readonly property.

◆ position()

QgsPoint QgsQuickPositionKit::position ( ) const

GPS position in WGS84 coords.

This is a readonly property.

◆ positionChanged

void QgsQuickPositionKit::positionChanged ( )

signal

GPS position in WGS84 coords.

This is a readonly property.

◆ positionCRS()

QgsCoordinateReferenceSystem QgsQuickPositionKit::positionCRS ( ) const

Coordinate reference system of position - WGS84 (constant)

Definition at line 277 of file qgsquickpositionkit.cpp.

◆ projectedPosition()

QgsPoint QgsQuickPositionKit::projectedPosition ( ) const

GPS position in map coords.

This is a readonly property.

◆ projectedPositionChanged

void QgsQuickPositionKit::projectedPositionChanged ( )

signal

GPS position in map coords.

This is a readonly property.

◆ screenAccuracy()

double QgsQuickPositionKit::screenAccuracy ( ) const

Screen horizontal accuracy, 2 if not available or resolution is too small.

This is a readonly property.

◆ screenAccuracyChanged

double QgsQuickPositionKit::screenAccuracyChanged ( ) const

signal

Screen horizontal accuracy, 2 if not available or resolution is too small.

This is a readonly property.

◆ screenPosition()

QPointF QgsQuickPositionKit::screenPosition ( ) const

GPS position in device coords (pixels).

This is a readonly property.

◆ screenPositionChanged

void QgsQuickPositionKit::screenPositionChanged ( )

signal

GPS position in device coords (pixels).

This is a readonly property.

◆ setMapSettings()

void QgsQuickPositionKit::setMapSettings ( QgsQuickMapSettings * mapSettings )

Associated map settings.

Should be initialized before the first use from mapcanvas map settings.

This is a readonly property.

Definition at line 317 of file qgsquickpositionkit.cpp.

◆ setSimulatePositionLongLatRad()

void QgsQuickPositionKit::setSimulatePositionLongLatRad ( const QVector< double > & simulatePositionLongLatRad )

Uses of GPS and simulated position and sets its parameters.

Vector containing longitude, latitude and radius (meters) of simulated position e.g. [-97.36, 36.93, 2] If empty vector is assigned, GPS source will be used.

From QML context, also functions useSimulatedLocation() or useGpsLocation() could be used instead

Definition at line 271 of file qgsquickpositionkit.cpp.

◆ simulatePositionLongLatRad()

QVector<double> QgsQuickPositionKit::simulatePositionLongLatRad ( ) const

Uses of GPS and simulated position and sets its parameters.

Vector containing longitude, latitude and radius (meters) of simulated position e.g. [-97.36, 36.93, 2] If empty vector is assigned, GPS source will be used.

From QML context, also functions useSimulatedLocation() or useGpsLocation() could be used instead

◆ simulatePositionLongLatRadChanged

void QgsQuickPositionKit::simulatePositionLongLatRadChanged ( QVector< double > simulatePositionLongLatRad )

signal

Uses of GPS and simulated position and sets its parameters.

Vector containing longitude, latitude and radius (meters) of simulated position e.g. [-97.36, 36.93, 2] If empty vector is assigned, GPS source will be used.

From QML context, also functions useSimulatedLocation() or useGpsLocation() could be used instead

◆ source()

QGeoPositionInfoSource* QgsQuickPositionKit::source ( ) const

Returns pointer to the internal QGeoPositionInfoSource object used to receive GPS location.

Note: The returned pointer is only valid until sourceChanged() signal is emitted

◆ sourceChanged

void QgsQuickPositionKit::sourceChanged ( )

signal

Emitted when the internal source of GPS location data has been replaced.

◆ useGpsLocation()

void QgsQuickPositionKit::useGpsLocation ( )

Use real GPS source (not simulated)

Definition at line 100 of file qgsquickpositionkit.cpp.

◆ useSimulatedLocation()

void QgsQuickPositionKit::useSimulatedLocation	(	double	longitude,
		double	latitude,
		double	radius
	)

Use simulated GPS source.

Simulated GPS source emulates point on circle around defined point in specified radius

We do not want to have the origin point as property We basically want to set it once based on project/map cente and keep it that way regardless of mapsettings change (e.g. zoom etc)

Parameters

longitude	longitude of the centre of the emulated points
latitude	latitude of the centre of the emulated points
radius	distance of emulated points from the centre (in degrees WSG84)

Definition at line 67 of file qgsquickpositionkit.cpp.

Property Documentation

◆ accuracy

double QgsQuickPositionKit::accuracy

read

GPS horizontal accuracy in accuracyUnits, -1 if not available.

This is a readonly property.

Definition at line 77 of file qgsquickpositionkit.h.

◆ direction

double QgsQuickPositionKit::direction

read

GPS direction, bearing in degrees clockwise from north to direction of travel.

-1 if not available

This is a readonly property.

Definition at line 91 of file qgsquickpositionkit.h.

◆ hasPosition

bool QgsQuickPositionKit::hasPosition

read

GPS position is available (position property is a valid number).

This is a readonly property.

Definition at line 70 of file qgsquickpositionkit.h.

◆ isSimulated

bool QgsQuickPositionKit::isSimulated

read

GPS position and accuracy is simulated (not real from GPS sensor).

Default false (use real GPS)

This is a readonly property. To change to simulated position, see QgsQuickPositionKit::simulatePositionLongLatRad

Definition at line 98 of file qgsquickpositionkit.h.

◆ mapSettings

QgsQuickMapSettings * QgsQuickPositionKit::mapSettings

readwrite

Associated map settings.

Should be initialized before the first use from mapcanvas map settings.

This is a readonly property.

Definition at line 105 of file qgsquickpositionkit.h.

◆ position

QgsPoint QgsQuickPositionKit::position

read

GPS position in WGS84 coords.

This is a readonly property.

Definition at line 49 of file qgsquickpositionkit.h.

◆ projectedPosition

QgsPoint QgsQuickPositionKit::projectedPosition

read

GPS position in map coords.

This is a readonly property.

Definition at line 56 of file qgsquickpositionkit.h.

◆ screenAccuracy

double QgsQuickPositionKit::screenAccuracy

read

Screen horizontal accuracy, 2 if not available or resolution is too small.

This is a readonly property.

Definition at line 84 of file qgsquickpositionkit.h.

◆ screenPosition

QPointF QgsQuickPositionKit::screenPosition

read

GPS position in device coords (pixels).

This is a readonly property.

Definition at line 63 of file qgsquickpositionkit.h.

◆ simulatePositionLongLatRad

QVector< double > QgsQuickPositionKit::simulatePositionLongLatRad

readwrite

Uses of GPS and simulated position and sets its parameters.

Vector containing longitude, latitude and radius (meters) of simulated position e.g. [-97.36, 36.93, 2] If empty vector is assigned, GPS source will be used.

From QML context, also functions useSimulatedLocation() or useGpsLocation() could be used instead

Definition at line 115 of file qgsquickpositionkit.h.

◆ source

QGeoPositionInfoSource * QgsQuickPositionKit::source

read

Internal source of GPS location data.

Allows start/stop of its services or access properties.

Definition at line 121 of file qgsquickpositionkit.h.

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

/tmp/buildd/qgis-3.8.0+99unstable/src/quickgui/qgsquickpositionkit.h
/tmp/buildd/qgis-3.8.0+99unstable/src/quickgui/qgsquickpositionkit.cpp

Signals

Public Member Functions

Properties

Detailed Description

Constructor & Destructor Documentation

◆ QgsQuickPositionKit()

Member Function Documentation

◆ accuracy()

◆ accuracyChanged

◆ accuracyUnits()

◆ accuracyUnitsChanged

◆ direction()

◆ directionChanged

◆ hasPosition()

◆ hasPositionChanged

◆ isSimulated()

◆ isSimulatedChanged

◆ mapSettings()

◆ mapSettingsChanged

◆ position()

◆ positionChanged

◆ positionCRS()

◆ projectedPosition()

◆ projectedPositionChanged

◆ screenAccuracy()

◆ screenAccuracyChanged

◆ screenPosition()

◆ screenPositionChanged

◆ setMapSettings()

◆ setSimulatePositionLongLatRad()

◆ simulatePositionLongLatRad()

◆ simulatePositionLongLatRadChanged

◆ source()

◆ sourceChanged

◆ useGpsLocation()

◆ useSimulatedLocation()

Property Documentation

◆ accuracy

◆ direction

◆ hasPosition

◆ isSimulated

◆ mapSettings

◆ position

◆ projectedPosition

◆ screenAccuracy

◆ screenPosition

◆ simulatePositionLongLatRad

◆ source