Marble::GeoDataTrack

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Marble::GeoDataTrack Class Reference

#include <GeoDataTrack.h>

Inheritance diagram for Marble::GeoDataTrack:

Public Member Functions

 GeoDataTrack (const GeoDataTrack &other)
 
void addPoint (const QDateTime &when, const GeoDataCoordinates &coord)
 
void appendAltitude (qreal altitude)
 
void appendCoordinates (const GeoDataCoordinates &coord)
 
void appendWhen (const QDateTime &when)
 
void clear ()
 
GeoDataCoordinates coordinatesAt (const QDateTime &when) const
 
GeoDataCoordinates coordinatesAt (int index) const
 
QVector< GeoDataCoordinatescoordinatesList () const
 
GeoDataGeometrycopy () const override
 
const GeoDataExtendedDataextendedData () const
 
GeoDataExtendedDataextendedData ()
 
QDateTime firstWhen () const
 
EnumGeometryId geometryId () const override
 
bool interpolate () const
 
QDateTime lastWhen () const
 
const GeoDataLatLonAltBoxlatLonAltBox () const override
 
const GeoDataLineStringlineString () const
 
const char * nodeType () const override
 
bool operator!= (const GeoDataTrack &other) const
 
GeoDataTrackoperator= (const GeoDataTrack &other)
 
bool operator== (const GeoDataTrack &other) const
 
void pack (QDataStream &stream) const override
 
void removeAfter (const QDateTime &when)
 
void removeBefore (const QDateTime &when)
 
void setExtendedData (const GeoDataExtendedData &extendedData)
 
void setInterpolate (bool on)
 
int size () const
 
void unpack (QDataStream &stream) override
 
QVector< QDateTimewhenList () const
 
- Public Member Functions inherited from Marble::GeoDataGeometry
AltitudeMode altitudeMode () const
 
void detach ()
 
bool extrude () const
 
bool operator!= (const GeoDataGeometry &other) const
 
bool operator== (const GeoDataGeometry &other) const
 
void pack (QDataStream &stream) const override
 
void setAltitudeMode (const AltitudeMode altitudeMode)
 
void setExtrude (bool extrude)
 
void unpack (QDataStream &stream) override
 
- Public Member Functions inherited from Marble::GeoDataObject
 GeoDataObject (const GeoDataObject &)
 
QString id () const
 
GeoDataObjectoperator= (const GeoDataObject &)
 
void pack (QDataStream &stream) const override
 
const GeoDataObjectparent () const
 
GeoDataObjectparent ()
 
QString resolvePath (const QString &relativePath) const
 
void setId (const QString &value)
 
void setParent (GeoDataObject *parent)
 
void setTargetId (const QString &value)
 
QString targetId () const
 
void unpack (QDataStream &steam) override
 

Additional Inherited Members

- Protected Member Functions inherited from Marble::GeoDataGeometry
 GeoDataGeometry (GeoDataGeometryPrivate *priv)
 
 GeoDataGeometry (const GeoDataGeometry &other)
 
bool equals (const GeoDataGeometry &other) const
 
GeoDataGeometryoperator= (const GeoDataGeometry &other)
 
- Protected Member Functions inherited from Marble::GeoDataObject
virtual bool equals (const GeoDataObject &other) const
 
- Protected Attributes inherited from Marble::GeoDataGeometry
GeoDataGeometryPrivate * d_ptr
 

Detailed Description

A geometry for tracking objects made of (time, coordinates) pairs.

GeoDataTrack implements the Track tag defined in Google's extension of the Open Geospatial Consortium standard KML 2.2 at https://developers.google.com/kml/documentation/kmlreference#gxtrack .

A track is made of points, each point has a coordinates and a time value associated with the coordinates. New points can be added using the addPoint() method. The coordinates of the tracked object at a particular time can be found using coordinatesAt(), you can specify if interpolation should be used using the setInterpolate() function.

By default, a LineString that passes through every coordinates in the track is drawn. You can customize it by changing the GeoDataLineStyle, for example if the GeoDataTrack is the geometry of feature, you can disable the line drawing with:

feature->style()->lineStyle().setPenStyle( Qt::NoPen );

For convenience, the methods appendCoordinates() and appendWhen() are provided. They let you add points by specifying their coordinates and time value separately. When N calls to one of these methods are followed by N calls to the other, the first coordinates will be matched with the first time value, the second coordinates with the second time value, etc. This follows the way "coord" and "when" tags inside the Track tag should be parsed.

Definition at line 50 of file GeoDataTrack.h.

Member Function Documentation

void Marble::GeoDataTrack::addPoint ( const QDateTime when,
const GeoDataCoordinates coord 
)

Add a new point with coordinates coord associated with the time value when.

Definition at line 219 of file GeoDataTrack.cpp.

void Marble::GeoDataTrack::appendAltitude ( qreal  altitude)

Add altitude information to the last appended coordinates.

Definition at line 247 of file GeoDataTrack.cpp.

void Marble::GeoDataTrack::appendCoordinates ( const GeoDataCoordinates coord)

Add the coordinates part for a new point.

See this class description for more information.

See also
appendWhen

Definition at line 237 of file GeoDataTrack.cpp.

void Marble::GeoDataTrack::appendWhen ( const QDateTime when)

Add the time value part for a new point.

See this class description for more information.

See also
appendCoordinates

Definition at line 262 of file GeoDataTrack.cpp.

void Marble::GeoDataTrack::clear ( )

Remove all the points contained in the track.

Definition at line 270 of file GeoDataTrack.cpp.

GeoDataCoordinates Marble::GeoDataTrack::coordinatesAt ( const QDateTime when) const

If interpolate() is true, return the coordinates interpolated from the time values before and after when, otherwise return the coordinates of the point with the closest time value less than or equal to when.

See also
interpolate

Definition at line 158 of file GeoDataTrack.cpp.

GeoDataCoordinates Marble::GeoDataTrack::coordinatesAt ( int  index) const

Return coordinates at specified index.

This is useful when the track contains coordinates without time information.

Definition at line 213 of file GeoDataTrack.cpp.

QVector< GeoDataCoordinates > Marble::GeoDataTrack::coordinatesList ( ) const

Returns the coordinates of all the points in the map, sorted by their time value.

Definition at line 146 of file GeoDataTrack.cpp.

const GeoDataExtendedData & Marble::GeoDataTrack::extendedData ( ) const

Return the ExtendedData assigned to the feature.

Definition at line 332 of file GeoDataTrack.cpp.

QDateTime Marble::GeoDataTrack::firstWhen ( ) const

Return the time value of the first point in the track, or an invalid QDateTime if the track is empty.

Definition at line 124 of file GeoDataTrack.cpp.

bool Marble::GeoDataTrack::interpolate ( ) const

Returns true if coordinatesAt() should use interpolation, false otherwise.

The default is false.

See also
setInterpolate, coordinatesAt

Definition at line 110 of file GeoDataTrack.cpp.

QDateTime Marble::GeoDataTrack::lastWhen ( ) const

Return the time value of the last point in the track, or an invalid QDateTime if the track is empty.

Definition at line 135 of file GeoDataTrack.cpp.

const GeoDataLineString * Marble::GeoDataTrack::lineString ( ) const

Return the GeoDataLineString representing the current track.

Definition at line 313 of file GeoDataTrack.cpp.

const char * Marble::GeoDataTrack::nodeType ( ) const
overridevirtual

Provides type information for downcasting a GeoNode.

Implements Marble::GeoNode.

Definition at line 71 of file GeoDataTrack.cpp.

bool Marble::GeoDataTrack::operator== ( const GeoDataTrack other) const

: Equality operators.

Definition at line 87 of file GeoDataTrack.cpp.

void Marble::GeoDataTrack::removeAfter ( const QDateTime when)

Remove all points from the track whose time value is greater than when.

Definition at line 297 of file GeoDataTrack.cpp.

void Marble::GeoDataTrack::removeBefore ( const QDateTime when)

Remove all points from the track whose time value is less than when.

Definition at line 280 of file GeoDataTrack.cpp.

void Marble::GeoDataTrack::setExtendedData ( const GeoDataExtendedData extendedData)

Sets the ExtendedData of the feature.

Parameters
extendedDatathe new ExtendedData to be used.

Definition at line 338 of file GeoDataTrack.cpp.

void Marble::GeoDataTrack::setInterpolate ( bool  on)

Set whether coordinatesAt() should use interpolation.

See also
interpolate, coordinatesAt

Definition at line 116 of file GeoDataTrack.cpp.

int Marble::GeoDataTrack::size ( ) const

Returns the number of points in the track.

Definition at line 104 of file GeoDataTrack.cpp.

QVector< QDateTime > Marble::GeoDataTrack::whenList ( ) const

Returns the time value of all the points in the map, in chronological order.

Since
0.26.0

Definition at line 152 of file GeoDataTrack.cpp.


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