Qt Positioning QML 类型

概述

The identifying string for this module is QtPositioning . To use the QML from this module, include the following import statement in the QML file:

import QtPositioning 6.5
					

Positioning QML Concepts

Position information can come from a variety of sources including satellites, Wi-Fi, text files and so on. The position is described by the latitude, longitude, and the altitude in meters. For more information, see the Wikipedia page on Geographic Coordinates .

The QML position is stored in a coordinate which contains the latitude, longitude and altitude of the device. The 定位 contains this coordinate and adds an address, and also has a bounding box which defines the recommended viewing region when displaying the location.

Now that the device has a position, with regular updates the API can determine the speed and heading of the device. It can also define a box-shaped or circular region that triggers notifications when the device either leaves or enters that region.

More detailed information on retrieving the current position can be found under Location Positioning via QML .

基本类型

coordinate Type represents and stores a geographic position
geoSatelliteInfo Type represents basic information about a satellite
geocircle Type represents a circular geographic area
geopath Type represents a geographic path
geopolygon Type represents a geographic polygon
georectangle Type represents a rectangular geographic area
geoshape A geoshape type represents an abstract geographic area

Alphabetical Listing of All QML Types

地址 QML type represents a specific location as a street address
CoordinateAnimation A PropertyAnimation for geo coordinate properties
定位 Type holds location data
PluginParameter Type describes a parameter for a position plugin
Position Type holds positional data at a particular point in time, such as coordinate (longitude, latitude, altitude) and speed
PositionSource Type provides the device's current position
QtPositioning Global object provides useful functions for working with location-based types in QML
SatelliteSource The satellite information
coordinate Type represents and stores a geographic position
geoSatelliteInfo Type represents basic information about a satellite
geocircle Type represents a circular geographic area
geopath Type represents a geographic path
geopolygon Type represents a geographic polygon
georectangle Type represents a rectangular geographic area
geoshape A geoshape type represents an abstract geographic area