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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
/*!
\qmlmodule QtLocation \QtVer
\title Qt Location QML Types
\ingroup qmlmodules
\brief Provides QML types for mapping and location information.
\section1 Overview
Provided that a position has been obtained, the Qt Location module
can add a \l{QtLocation::}{Map} with Places of Interest (POI) and
\l{QtLocation::Place}{Places}. The user can be made aware of nearby
features and related information, displayed on the map. These features
can be places of business, entertainment, and so on. They may include
paths, roads, or forms of transport, enabling navigation optimization
and assistance.
To perform navigation we need \l {route}s from start to destination.
These routes are made up of segments, where each \l {QtLocation::}
{routeSegment} can be considered a navigation subtask; for example,
"drive 100 meters", or "turn left". The beginning and end of each
segment is a \e waypoint, that is, one part of the journey.
A typical use case for the API is a user looking for a particular type of
place, such as a restaurant; the user enters a search string into the map
application and is presented with a list of results for restaurants
"near" the device. The application can then be used to navigate to the
chosen destination using a route that is optimized according to features
in the environment that may help or hinder the journey. The navigation then
proceeds with the user's progress monitored by means of the current
location.
In short, the main QML types and their roles are as follows:
\list
\li The \l [QML] Place instances hold information about the
destination and surrounding objects, including displayable
representations.
\li The \l [QML] Map enables the information contained in
\l [QML] {Place} objects to be displayed, panned, zoomed,
and so on.
\li The \l [QML] route is be determined by a \e plugin, with each
\l [QML] routeSegment holding the navigation instructions,
guided by the continuously updated current \l [QML] Location.
\endlist
\section2 Plugins
\l {Plugin}s supply the data required to calculate routes and navigation
instructions, and they are typically tied to a specific location-based
service. For example, a plugin may allow connecting to a service that
provides geocoding and routing information, which can be consumed by the
application.
There may be various GeoServices plugins for various tasks, with some
plugins providing more than one service. One QML \l Plugin instance must
be created for each GeoService plugin. Plugins are required for routing
and geocoding, maps, and places, however the default plugin handles all
four of these services. A plugin may require online access or it may
support on-board maps and data.
\note Plugins may not provide features such as paging or relevance hints.
\section2 Related Information
The following links provide more information about maps and places:
\table
\row
\li \l {Maps and Navigation (QML)}{Maps and Navigation}
\li Displaying maps and finding routes
\row
\li \l {QML Places API} {Places}
\li Searching for and managing points of interest
\endtable
\section1 Common QML Types
\annotatedlist qml-QtLocation5-common
\section1 Maps QML Types
\annotatedlist qml-QtLocation5-maps
\section1 Navigation and Routing QML Types
\annotatedlist qml-QtLocation5-routing
\section1 Geocoding QML Types
\annotatedlist qml-QtLocation5-geocoding
\section1 Places QML Types
\annotatedlist qml-QtLocation5-places
\section1 Alphabetical Listing of All QML Types
*/
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