Qt Location C++ API

The Location API provides a library for location positioning, mapping and navigation.

The Qt Location API provides the developer with a set of functions for determining the current location and using that information with maps and places of interest.

Positioning information can be sourced from GPS satellites or a stream of data using NMEA formatted text. Once a position is acquired we can monitor the updated position to see if it moves into or out of a given region. With the Maps API we can associate the position with a map in various formats supplied by a backend. Then the Places API could be used to populate places on the Map or even specify the current position as a place of interest and associate it with an icon, contact details and other information.

The following table provides links to more detailed information on sections of the Qt Location C++ API.

Location Positioning	Retrieving information about the current position.
Maps and Navigation	Displaying maps and finding routes.
Places	Searching for and managing points of interest.

Positioning Classes

QGeoAddress	Represents an address of a QGeoLocation
QGeoAreaMonitor	Enables the detection of proximity changes for a specified set of coordinates
QGeoBoundingArea	Defines a geographic area
QGeoBoundingBox	Defines a rectangular geographic area
QGeoBoundingCircle	Defines a circular geographic area
QGeoCoordinate	Defines a geographical position on the surface of the Earth
QGeoLocation	Represents basic information about a location
QGeoPositionInfo	Contains information gathered on a global position, direction and velocity at a particular point in time
QGeoPositionInfoSource	Abstract base class for the distribution of positional updates
QGeoSatelliteInfo	Contains basic information about a satellite
QGeoSatelliteInfoSource	Abstract base class for the distribution of satellite information updates
QNmeaPositionInfoSource	Positional information using a NMEA data source

Maps and Navigation Classes

QGeoServiceProvider

Aggregates access to services which provide geographical information

QGeoMappingManager

Support for displaying and interacting with maps

QGeoCameraCapabilities	Describes the limitations on camera settings imposed by a mapping plugin
QGeoMappingManagerEngine
QGeoPositionInfoSourceFactory	Factory class used as the plugin interface for external providers of positioning data
QGeoRoutingManagerEngine	Interface and convenience methods to implementers of QGeoServiceProvider plugins who want to provide access to geographic routing information
QGeoServiceProviderFactory	Factory class used as the plugin interface for services related to geographical information
QGeoTiledMapReply	Manages a tile fetch operation started by an instance of QGeoTiledManagerEngine
QGeocodingManagerEngine	Interface and convenience methods to implementers of QGeoServiceProvider plugins who want to provide support for geocoding operations
QPlaceManagerEngine	Interface for implementers of QGeoServiceProvider plugins who want to provide access to place functionality

QGeoManeuver	Represents the information relevant to the point at which two QGeoRouteSegments meet
QGeoRoute	Represents a route between two points
QGeoRouteReply	Manages an operation started by an instance of QGeoRoutingManager
QGeoRouteRequest	Represents the parameters and restrictions which define a request for routing information
QGeoRouteSegment	Represents a segment of a route
QGeoRoutingManager	Support for geographic routing operations

QGeocodeReply	Manages an operation started by an instance of QGeocodingManager
QGeocodingManager	Support for geocoding operations

Places Classes

QGeoAddress	Represents an address of a QGeoLocation
QGeoLocation	Represents basic information about a location
QPlace	Represents a set of data about a place
QPlaceAttribute	Represents generic attribute information about a place
QPlaceCategory	Represents a category that a QPlace can be associated with
QPlaceContactDetail	Represents a contact detail such as a phone number or website url
QPlaceContent	Serves as the base class for rich content types
QPlaceContentReply	Manages a content retrieval operation started by an instance of QPlaceManager
QPlaceContentRequest	Represents the parameters of a content request
QPlaceDetailsReply	Manages a place details fetch operation started by an instance of QPlaceManager
QPlaceEditorial	Represents a publisher's article describing a place
QPlaceIcon	Represents an icon
QPlaceIdReply	Manages operations which return an identifier such as saving and removal operations of places and categories
QPlaceImage	Represents a reference to an image
QPlaceManager	The interface which allows clients to access places stored in a particular backend
QPlaceManagerEngine	Interface for implementers of QGeoServiceProvider plugins who want to provide access to place functionality
QPlaceMatchReply	Manages a place matching operation started by an instance of QPlaceManager
QPlaceMatchRequest	Used to find places from one manager that match those from another. It represents a set of request parameters
QPlaceRatings	Holds rating information about a place
QPlaceReply	Manages an operation started by an instance of QPlaceManager and serves as a base class for more specialized replies
QPlaceReview	Represents a review of a place
QPlaceSearchReply	Manages a place search operation started by an instance of QPlaceManager
QPlaceSearchRequest	Represents the set of parameters for a search request
QPlaceSearchResult	Represents a search result
QPlaceSearchSuggestionReply	Manages a search suggestion operation started by an instance of QPlaceManager
QPlaceSupplier	Represents a supplier of a place or content associated with a place
QPlaceUser	Represents an individual user

Qt Location Module

The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation.

Documentation sources may be obtained from www.qt-project.org.

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