45 setConnection( connection );
47 mLastNmeaPosition.lat = nmea_degree2radian( 0.0 );
48 mLastNmeaPosition.lon = nmea_degree2radian( 0.0 );
50 mAcquisitionTimer = std::unique_ptr<QTimer>(
new QTimer(
this ) );
51 mAcquisitionTimer->setSingleShot(
true );
55 connect( mAcquisitionTimer.get(), &QTimer::timeout,
56 this, &QgsGpsLogger::switchAcquisition );
92 mTransformContext = context;
99 return mTransformContext;
104 return mDistanceCalculator;
109 return mCaptureListWgs84;
115 const QVector< QgsPoint > captureListWgs84 =
currentTrack();
118 error = tr(
"Creating a line feature requires a track with at least two vertices." );
123 error = tr(
"Creating a polygon feature requires a track with at least three vertices." );
129 switch ( geometryType )
155 std::unique_ptr<QgsLineString> ringWgs84(
new QgsLineString( captureListWgs84 ) );
157 ringWgs84->dropZValue();
159 ringWgs84->dropMValue();
170 std::unique_ptr<QgsPolygon> polygon(
new QgsPolygon() );
171 polygon->setExteriorRing( ringWgs84.release() );
190 return mLastGpsPositionWgs84;
195 return mLastElevation;
207 const bool trackWasEmpty = mCaptureListWgs84.isEmpty();
208 mCaptureListWgs84.clear();
210 mTrackStartTime = QDateTime();
212 if ( !trackWasEmpty )
220 int acquisitionInterval = 0;
244 mTimeStampSpec = Qt::TimeSpec::LocalTime;
248 mTimeStampSpec = Qt::TimeSpec::UTC;
252 mTimeStampSpec = Qt::TimeSpec::TimeZone;
258 mAcquisitionInterval = acquisitionInterval * 1000;
259 if ( mAcquisitionTimer->isActive() )
260 mAcquisitionTimer->stop();
261 mAcquisitionEnabled =
true;
268 QVector<QgsPointXY> points;
277 QgsDebugError( QStringLiteral(
"An error occurred while calculating length" ) );
284 if ( mCaptureListWgs84.empty() )
294 QgsDebugError( QStringLiteral(
"An error occurred while calculating length" ) );
319 return mConnection->currentGPSInformation().componentValue( component );
341 QgsDebugError( QStringLiteral(
"An error occurred while calculating length" ) );
346 return mPreviousTrackPointTime.isValid() ?
static_cast< double >( mPreviousTrackPointTime.msecsTo(
lastTimestamp() ) ) / 1000 : QVariant();
351void QgsGpsLogger::switchAcquisition()
353 if ( mAcquisitionInterval > 0 )
355 if ( mAcquisitionEnabled )
356 mAcquisitionTimer->start( mAcquisitionInterval );
359 mAcquisitionTimer->start( mAcquisitionInterval / 10 );
361 mAcquisitionEnabled = !mAcquisitionEnabled;
370 const bool validFlag = info.
isValid();
372 nmeaPOS newNmeaPosition;
377 newNmeaPosition.lat = nmea_degree2radian( info.
latitude );
378 newNmeaPosition.lon = nmea_degree2radian( info.
longitude );
386 switch ( mMValueComponent )
402 mLastMValue = value.isValid() ? info.
componentValue( mMValueComponent ).toDouble() : std::numeric_limits< double >::quiet_NaN();
407 mLastMValue =
static_cast< double >( info.
utcDateTime.toMSecsSinceEpoch() );
423 newLocationWgs84 = mLastGpsPositionWgs84;
424 newNmeaPosition = mLastNmeaPosition;
425 newAlt = mLastElevation;
427 if ( !mAcquisitionEnabled || ( nmea_distance( &newNmeaPosition, &mLastNmeaPosition ) < mDistanceThreshold ) )
430 newLocationWgs84 = mLastGpsPositionWgs84;
433 if ( validFlag && mAcquisitionEnabled )
440 if ( mLastGpsPositionWgs84 != newLocationWgs84 )
442 mLastGpsPositionWgs84 = newLocationWgs84;
443 mLastNmeaPosition = newNmeaPosition;
444 mLastElevation = newAlt;
446 if ( mAutomaticallyAddTrackVertices )
455 mPreviousTrackPoint = mLastGpsPositionWgs84;
460 QgsPoint pointWgs84 =
QgsPoint( mLastGpsPositionWgs84.
x(), mLastGpsPositionWgs84.
y(), mLastElevation );
462 if ( mStoreAttributeInMValues )
467 const bool trackWasEmpty = mCaptureListWgs84.empty();
468 mCaptureListWgs84.push_back( pointWgs84 );
481 return mAutomaticallyAddTrackVertices;
486 mAutomaticallyAddTrackVertices = enabled;
491 if ( !mLastTime.isValid() )
494 QDateTime time = mLastTime;
497 time.setTimeSpec( Qt::UTC );
499 if ( mApplyLeapSettings && mLeapSeconds != 0 )
501 time = time.addSecs( mLeapSeconds );
504 if ( mTimeStampSpec != Qt::TimeSpec::OffsetFromUTC )
505 time = time.toTimeSpec( mTimeStampSpec );
507 if ( mTimeStampSpec == Qt::TimeSpec::TimeZone )
510 const QTimeZone destTz( mTimeZone.toUtf8() );
511 if ( destTz.isValid() )
513 time = time.toTimeZone( destTz );
516 else if ( mTimeStampSpec == Qt::TimeSpec::LocalTime )
518 time = time.toLocalTime();
520 else if ( mTimeStampSpec == Qt::TimeSpec::OffsetFromUTC )
522 time = time.toOffsetFromUtc( mOffsetFromUtc );
524 else if ( mTimeStampSpec == Qt::TimeSpec::UTC )
534 return mTrackStartTime;
GpsInformationComponent
GPS information component.
@ TrackStartTime
Timestamp at start of current track (available from QgsGpsLogger class only)
@ GroundSpeed
Ground speed.
@ TrackTimeSinceLastPoint
Time since last recorded location (available from QgsGpsLogger class only)
@ Pdop
Dilution of precision.
@ TrackEndTime
Timestamp at end (current point) of current track (available from QgsGpsLogger class only)
@ Altitude
Altitude/elevation above or below the mean sea level.
@ TrackDistanceFromStart
Direct distance from first vertex in current GPS track to last vertex (available from QgsGpsLogger cl...
@ TotalTrackLength
Total distance of current GPS track (available from QgsGpsLogger class only)
@ Hdop
Horizontal dilution of precision.
@ EllipsoidAltitude
Altitude/elevation above or below the WGS-84 Earth ellipsoid.
@ Bearing
Bearing measured in degrees clockwise from true north to the direction of travel.
@ Vdop
Vertical dilution of precision.
@ GeoidalSeparation
Geoidal separation, the difference between the WGS-84 Earth ellipsoid and mean-sea-level (geoid),...
@ VerticalAccuracy
Vertical accuracy in meters.
@ Location
2D location (latitude/longitude), as a QgsPointXY value
@ TrackDistanceSinceLastPoint
Distance since last recorded location (available from QgsGpsLogger class only)
@ HorizontalAccuracy
Horizontal accuracy in meters.
@ SatellitesUsed
Count of satellites used in obtaining the fix.
GeometryType
The geometry types are used to group Qgis::WkbType in a coarse way.
WkbType
The WKB type describes the number of dimensions a geometry has.
virtual bool addMValue(double mValue=0)=0
Adds a measure to the geometry, initialized to a preset value.
This class represents a coordinate reference system (CRS).
Contains information about the context in which a coordinate transform is executed.
Custom exception class for Coordinate Reference System related exceptions.
A general purpose distance and area calculator, capable of performing ellipsoid based calculations.
double measureLine(const QVector< QgsPointXY > &points) const
Measures the length of a line with multiple segments.
void setSourceCrs(const QgsCoordinateReferenceSystem &crs, const QgsCoordinateTransformContext &context)
Sets source spatial reference system crs.
bool setEllipsoid(const QString &ellipsoid)
Sets the ellipsoid by its acronym.
A geometry is the spatial representation of a feature.
QgsAbstractGeometry * get()
Returns a modifiable (non-const) reference to the underlying abstract geometry primitive.
static QgsGeometry fromPointXY(const QgsPointXY &point)
Creates a new geometry from a QgsPointXY object.
bool convertToMultiType()
Converts single type geometry into multitype geometry e.g.
static void convertPointList(const QVector< QgsPointXY > &input, QgsPointSequence &output)
Upgrades a point list from QgsPointXY to QgsPoint.
Abstract base class for connection to a GPS device.
static const QgsSettingsEntryEnumFlag< Qt::TimeSpec > * settingsGpsTimeStampSpecification
Settings entry time specification for GPS time stamps.
static const QgsSettingsEntryString * settingsGpsTimeStampTimeZone
Settings entry GPS time stamp time zone.
static const QgsSettingsEntryBool * settingGpsApplyLeapSecondsCorrection
Settings entry GPS apply leap seconds correction.
static const QgsSettingsEntryInteger * settingGpsLeapSeconds
Settings entry GPS leap seconds correction amount (in seconds)
static const QgsSettingsEntryInteger * settingsGpsTimeStampOffsetFromUtc
Settings entry GPS time offset from UTC in seconds.
static const QgsSettingsEntryInteger * settingGpsAcquisitionInterval
Settings entry GPS track point acquisition interval.
static const QgsSettingsEntryDouble * settingGpsDistanceThreshold
Settings entry GPS track point distance threshold.
void stateChanged(const QgsGpsInformation &info)
Emitted whenever the GPS state is changed.
Base class for objects which log incoming GPS data.
static const QgsSettingsEntryBool * settingsGpsStoreAttributeInMValues
Settings entry for whether storing GPS attributes as geometry M values should be enabled.
virtual void setTransformContext(const QgsCoordinateTransformContext &context)
Sets the coordinate transform context to be used when transforming GPS coordinates.
void stateChanged(const QgsGpsInformation &info)
Emitted whenever the associated GPS device state is changed.
static const QgsSettingsEntryEnumFlag< Qgis::GpsInformationComponent > * settingsGpsMValueComponent
Settings entry dictating which GPS attribute should be stored in geometry M values.
double lastElevation() const
Returns the last recorded elevation the device.
static const QgsSettingsEntryInteger * settingsTimeStampFormat
QgsCoordinateReferenceSystem mWgs84CRS
WGS84 coordinate reference system.
static const QgsSettingsEntryInteger * settingsLeapSecondsCorrection
int mBlockGpsStateChanged
Used to pause logging of incoming GPS messages.
static const QgsSettingsEntryBool * settingsApplyLeapSeconds
QgsGeometry currentGeometry(Qgis::WkbType type, QString &error) const
Returns the current logged GPS positions as a geometry of the specified type.
const QgsDistanceArea & distanceArea() const
Returns the distance area calculator which should be used for calculating distances associated with t...
QVector< QgsPoint > currentTrack() const
Returns the recorded points in the current track.
bool automaticallyAddTrackVertices() const
Returns true if track vertices will be automatically added whenever the GPS position is changed.
void trackIsEmptyChanged(bool isEmpty)
Emitted whenever the current track changes from being empty to non-empty or vice versa.
QDateTime trackStartTime() const
Returns the timestamp at which the current track was started.
static const QgsSettingsEntryDouble * settingsDistanceThreshold
void updateGpsSettings()
Should be called whenever the QGIS GPS settings are changed.
void trackReset()
Emitted whenever the current track is reset.
void resetTrack()
Resets the current track, discarding all recorded points.
QDateTime lastTimestamp() const
Returns the last recorded timestamp from the device.
void setAutomaticallyAddTrackVertices(bool enabled)
Sets whether track vertices will be automatically added whenever the GPS position is changed.
void addTrackVertex()
Adds a track vertex at the current GPS location.
double lastMValue() const
Returns the last recorded value corresponding to the QgsGpsLogger::settingsGpsMValueComponent setting...
double trackDistanceFromStart() const
Returns the direct length from the first vertex in the track to the last (in meters).
QgsCoordinateTransformContext transformContext() const
Returns the coordinate transform context to be used when transforming GPS coordinates.
void setConnection(QgsGpsConnection *connection)
Sets the associated GPS connection.
void distanceAreaChanged()
Emitted whenever the distance area used to calculate track distances is changed.
QgsGpsConnection * connection()
Returns the associated GPS connection.
static const QgsSettingsEntryString * settingsTimestampTimeZone
double totalTrackLength() const
Returns the total length of the current digitized track (in meters).
void setEllipsoid(const QString &ellipsoid)
Sets the ellipsoid which will be used for calculating distances in the log.
static const QgsSettingsEntryInteger * settingsAcquisitionInterval
QVariant componentValue(Qgis::GpsInformationComponent component) const
Returns the value of the corresponding GPS information component.
void trackVertexAdded(const QgsPoint &vertex)
Emitted whenever a new vertex is added to the track.
QgsPointXY lastPosition() const
Returns the last recorded position of the device.
Line string geometry type, with support for z-dimension and m-values.
A class to represent a 2D point.
bool isEmpty() const
Returns true if the geometry is empty.
Point geometry type, with support for z-dimension and m-values.
bool addMValue(double mValue=0) override
Adds a measure to the geometry, initialized to a preset value.
T value(const QString &dynamicKeyPart=QString()) const
Returns settings value.
A boolean settings entry.
A template class for enum and flag settings entry.
An integer settings entry.
QgsSettingsTree holds the tree structure for the settings in QGIS core.
static QgsSettingsTreeNode * sTreeGps
static Qgis::GeometryType geometryType(Qgis::WkbType type)
Returns the geometry type for a WKB type, e.g., both MultiPolygon and CurvePolygon would have a Polyg...
static bool isMultiType(Qgis::WkbType type)
Returns true if the WKB type is a multi type.
static bool hasZ(Qgis::WkbType type)
Tests whether a WKB type contains the z-dimension.
static bool hasM(Qgis::WkbType type)
Tests whether a WKB type contains m values.
#define BUILTIN_UNREACHABLE
#define QgsDebugError(str)