Warning

This section contains snippets that were automatically translated from C++ to Python and may contain errors.

Interfaces between C++ and QML Code in Qt Positioning

Describes the methods used to exchange position data between C++ and QML code.

Overview

Qt Positioning utilizes two methods to simplify exchange of position data between C++ and QML code.

Direct mapping

Qt Positioning allow you to pass the following value types from QML to C++, and vice versa:

C++ Class	QML Value Type
QGeoCircle	geoCircle
QGeoCoordinate	geoCoordinate
QGeoPath	geoPath
QGeoPolygon	geoPolygon
QGeoRectangle	geoRectangle
QGeoSatelliteInfo	geoSatelliteInfo
QGeoShape	geoShape

QVariant Based integration

This section provides information on how to integrate QGeoAddress and QGeoLocation .

Address - QGeoAddress

The Address.address property is used to provide an interface between C++ and QML code. First a pointer to an Address object must be obtained from C++, then the property() and setProperty() functions must be used to get and set the address property.

The following piece of code gets the QGeoAddress object from C++:

geoAddress = qmlObject.property("address").value<QGeoAddress>()

The following piece of code sets the address property of the QML object based on a QGeoAddress object from C++:

qmlObject.setProperty("address", QVariant.fromValue(geoAddress))

Location - QGeoLocation

The Location.location property is used to provide an interface between C++ and QML code. First a pointer to a Location object must be obtained from C++, then the property() and setProperty() functions must be used to get and set the location property.

The following piece of code gets the QGeoLocation object from C++:

geoLocation = qmlObject.property("location").value<QGeoLocation>()

The following piece of code sets the location property of the QML object based on a QGeoLocation object from C++:

qmlObject.setProperty("location", QVariant.fromValue(geoLocation))