QGeoCircle Class
The QGeoCircle class defines a circular geographic area. More...
Header: | #include <QGeoCircle> |
qmake: | QT += positioning |
Since: | Qt 5.2 |
Inherits: | QGeoShape |
Properties
- 3 properties inherited from QGeoShape
Public Functions
QGeoCircle() | |
QGeoCircle(const QGeoCoordinate & center, qreal radius = -1.0) | |
QGeoCircle(const QGeoCircle & other) | |
QGeoCircle(const QGeoShape & other) | |
~QGeoCircle() | |
QGeoCoordinate | center() const |
qreal | radius() const |
void | setCenter(const QGeoCoordinate & center) |
void | setRadius(qreal radius) |
QString | toString() const |
void | translate(double degreesLatitude, double degreesLongitude) |
QGeoCircle | translated(double degreesLatitude, double degreesLongitude) const |
bool | operator!=(const QGeoCircle & other) const |
QGeoCircle & | operator=(const QGeoCircle & other) |
bool | operator==(const QGeoCircle & other) const |
- 10 public functions inherited from QGeoShape
Detailed Description
The QGeoCircle class defines a circular geographic area.
The circle is defined in terms of a QGeoCoordinate which specifies the center of the circle and a qreal which specifies the radius of the circle in meters.
The circle is considered invalid if the center coordinate is invalid or if the radius is less than zero.
This class is a Q_GADGET since Qt 5.5. It can be directly used from C++ and QML.
Property Documentation
center : QGeoCoordinate
This property holds this property holds the center coordinate for the geo circle.
The circle is considered invalid if this property contains an invalid coordinate.
A default constructed QGeoCircle uses an invalid QGeoCoordinate as center.
While this property is introduced in Qt 5.5, the related accessor functions exist since the first version of this class.
This property was introduced in Qt 5.5.
Access functions:
QGeoCoordinate | center() const |
void | setCenter(const QGeoCoordinate & center) |
radius : qreal
This property holds this property holds the circle radius in meters.
The circle is considered invalid if this property is negative.
By default, the radius is initialized with -1
.
While this property is introduced in Qt 5.5, the related accessor functions exist since the first version of this class.
This property was introduced in Qt 5.5.
Access functions:
qreal | radius() const |
void | setRadius(qreal radius) |
Member Function Documentation
QGeoCircle::QGeoCircle()
Constructs a new, invalid geo circle.
QGeoCircle::QGeoCircle(const QGeoCoordinate & center, qreal radius = -1.0)
Constructs a new geo circle centered at center and with a radius of radius meters.
QGeoCircle::QGeoCircle(const QGeoCircle & other)
Constructs a new geo circle from the contents of other.
QGeoCircle::QGeoCircle(const QGeoShape & other)
Constructs a new geo circle from the contents of other.
QGeoCircle::~QGeoCircle()
Destroys this geo circle.
QString QGeoCircle::toString() const
Returns the geo circle properties as a string.
This function was introduced in Qt 5.5.
void QGeoCircle::translate(double degreesLatitude, double degreesLongitude)
Translates this geo circle by degreesLatitude northwards and degreesLongitude eastwards.
Negative values of degreesLatitude and degreesLongitude correspond to southward and westward translation respectively.
QGeoCircle QGeoCircle::translated(double degreesLatitude, double degreesLongitude) const
Returns a copy of this geo circle translated by degreesLatitude northwards and degreesLongitude eastwards.
Negative values of degreesLatitude and degreesLongitude correspond to southward and westward translation respectively.
See also translate().
bool QGeoCircle::operator!=(const QGeoCircle & other) const
Returns whether this geo circle is not equal to other.
QGeoCircle & QGeoCircle::operator=(const QGeoCircle & other)
Assigns other to this geo circle and returns a reference to this geo circle.
bool QGeoCircle::operator==(const QGeoCircle & other) const
Returns whether this geo circle is equal to other.