内容

• Geoservice Provider Classes
• Maps and Navigation Classes
• Places Classes
• Geoservices and Positioning Plugin Classes

Qt Location C++ API

The Location API provides a library for mapping, navigation and place information.

The Qt Location API provides the developer with a set of functions to interact with maps, navigational data and places of interest. This is particularly useful when associated with current position information which can be retrieved via the QtPositioning 模块。

With the Maps API we can associate a 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.

Maps and Navigation	Displaying maps and finding routes.
Places	Searching for and managing points of interest.
Geoservices Plugin Implementation	Implement new geoservices and positioning plugins.

Geoservice Provider Classes

QGeoServiceProvider

Aggregates access to services which provide geographical information

Maps and Navigation Classes

Currently it is not possible to interact with maps data via C++. The only available interface is the Maps and Navigation (QML) API.

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

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
QPlaceProposedSearchResult	Represents a search result containing a proposed search
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
QPlaceResult	Represents a search result containing a place
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	The base class for search results
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
QGeoAddress	表示 QGeoLocation 的地址
QGeoLocation	Represents basic information about a location

Geoservices and Positioning Plugin Classes

QGeoCodingManagerEngine	Interface and convenience methods to implementers of QGeoServiceProvider plugins who want to provide support for geocoding operations
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
QPlaceManagerEngine	Interface for implementers of QGeoServiceProvider plugins who want to provide access to place functionality