W3cubDocs

/Qt 5.13

QGeoShape Class

The QGeoShape class defines a geographic area. More...

Header: #include <QGeoShape>
qmake: QT += positioning
Since: Qt 5.2
Inherited By:

QGeoCircle, QGeoPath, QGeoPolygon, and QGeoRectangle

This class was introduced in Qt 5.2.

Public Types

enum ShapeType { UnknownType, RectangleType, CircleType, PathType, PolygonType }

Properties

Public Functions

QGeoShape(const QGeoShape &other)
QGeoShape()
QGeoShape & operator=(const QGeoShape &other)
~QGeoShape()
QGeoRectangle boundingGeoRectangle() const
QGeoCoordinate center() const
bool contains(const QGeoCoordinate &coordinate) const
bool isEmpty() const
bool isValid() const
QString toString() const
QGeoShape::ShapeType type() const
bool operator!=(const QGeoShape &other) const
bool operator==(const QGeoShape &other) const

Detailed Description

This class is the base class for classes which specify a geographic area.

For the sake of consistency, subclasses should describe the specific details of the associated areas in terms of QGeoCoordinate instances and distances in meters.

This class is a Q_GADGET since Qt 5.5. It can be directly used from C++ and QML.

Member Type Documentation

enum QGeoShape::ShapeType

Describes the type of the shape.

Constant Value Description
QGeoShape::UnknownType 0 A shape of unknown type
QGeoShape::RectangleType 1 A rectangular shape
QGeoShape::CircleType 2 A circular shape
QGeoShape::PathType 3 A path type
QGeoShape::PolygonType 4 A polygon type

Property Documentation

isEmpty : const bool

This property defines whether this geo shape is empty.

An empty geo shape is a region which has a geometrical area of 0.

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:

bool isEmpty() const

isValid : const bool

This property holds the validity of the geo shape.

A geo shape is considered to be invalid if some of the data that is required to unambiguously describe the geo shape has not been set or has been set to an unsuitable value depending on the subclass of this object. The default constructed objects of this type are invalid.

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:

bool isValid() const

type : const ShapeType

This property holds the type of this geo shape.

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:

QGeoShape::ShapeType type() const

Member Function Documentation

QGeoShape::QGeoShape(const QGeoShape &other)

Constructs a new geo shape which is a copy of other.

QGeoShape::QGeoShape()

Constructs a new invalid geo shape of UnknownType.

QGeoShape &QGeoShape::operator=(const QGeoShape &other)

Assigns other to this geo shape and returns a reference to this geo shape.

QGeoShape::~QGeoShape()

Destroys this geo shape.

QGeoRectangle QGeoShape::boundingGeoRectangle() const

Returns a QGeoRectangle representing the geographical bounding rectangle of the geo shape, that defines the latitudinal/longitudinal bounds of the geo shape.

This function was introduced in Qt 5.9.

Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.

QGeoCoordinate QGeoShape::center() const

Returns the coordinate located at the geometric center of the geo shape.

This function was introduced in Qt 5.5.

Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.

bool QGeoShape::contains(const QGeoCoordinate &coordinate) const

Returns whether the coordinate coordinate is contained within this geo shape.

Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.

bool QGeoShape::isEmpty() const

Returns whether this geo shape is empty.

An empty geo shape is a region which has a geometrical area of 0.

Note: Getter function for property isEmpty.

bool QGeoShape::isValid() const

Returns whether this geo shape is valid.

Note: Getter function for property isValid.

QString QGeoShape::toString() const

Returns a string representation of this geo shape.

This function was introduced in Qt 5.5.

Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.

QGeoShape::ShapeType QGeoShape::type() const

Returns the type of this geo shape.

Note: Getter function for property type.

bool QGeoShape::operator!=(const QGeoShape &other) const

Returns true if the other geo shape is not equivalent to this geo shape, otherwise returns false.

bool QGeoShape::operator==(const QGeoShape &other) const

Returns true if the other geo shape is equivalent to this geo shape, otherwise returns false.

© The Qt Company Ltd
Licensed under the GNU Free Documentation License, Version 1.3.
https://doc.qt.io/qt-5.13/qgeoshape.html