The Qt Location API helps you create viable mapping solutions using the data available from some of the popular location services.
Qt Location API 能够：
To load the Qt Location module, add the following statement to your .qml files
import QtPositioning 5.12 import QtLocation 5.12
The QtLocation QML module depends on the QtPositioning QML module. Therefore every QML application that imports the QtLocation QML module must always import the QtPositioning module as well.
For C++ projects include the header appropriate for the current use case, for example applications using routes may use
#include <QGeoRoute>
.pro 文件应有 location 添加关键词
QT += location
The API is split into sub-modules, which provide QML and C++ interfaces for specific purposes. They focus mainly on Map and Place information. The required position data can be retrieved using the QtPositioning 模块。
The Places submodule is the natural complement to Positioning, providing a source of geographical data about Places of Interest (POI). Besides the source information, the API provides information about the location, size, and other related information about a POI. The Places API can also retrieve images, reviews, and other content related to a place.
| Places introduction: | for QML | for C++ |
The module provides the QML and C++ alternatives for maps and navigation. The C++ alternative provides utility classes to get geocoding (finding a geographic coordinate from a street address) and navigation (including driving and walking directions) information, whereas its QML counterpart provides UI components to render the information.
| Maps and Navigation introduction: | for QML | for C++ |
The following are lists of the classes and UI components provided by the module, with example applications to demonstrate their usage:
| QML API Reference | Full list of QML components in the Qt Location API |
| C++ API Reference by domain | Full list of C++ classes and methods of the Qt Location APIs sorted by domain |
| C++ API Reference | Full list of C++ classes and methods of the Qt Location APIs |
| Example Apps | Examples demonstrating use of the Qt Location APIs |
| Maps and Navigation Tutorial | Tutorial introducing the QML Maps Types |
Information about plugins, important notes on their usage, parameters that can be provided to influence their behavior.
| Qt Location Esri Plugin | Uses Esri for location services. |
| Qt Location HERE Plugin | Uses the relevant services provided by HERE. |
| Qt Location Items Overlay Plugin | Provides an empty map intended to be used as background for an overlay layers for map items. |
| Qt Location Mapbox GL 插件 | Uses Mapbox GL for location services. |
| Qt Location Mapbox Plugin | Uses Mapbox for location services. |
| Qt Location 开放式街道地图插件 | Uses Open Street Map and related services. |
For systems integrators and distributors, information related to making Qt Location available for a new platform.
| GeoServices | Information about the Qt Location GeoServices plugins |
| Places | Information for places backend implementors |
| API 变化 | Information about QML API changes since 5.4 |
Qt Location 在商业许可下是可用的来自 Qt 公司 。此外，它是可用的根据 GNU LGPL (次一般公共许可) 第 3 版 ，或 GNU GPL (一般公共许可) 第 2 版 。见 Qt 许可 进一步了解细节。
此外，Qt Location 潜在包含的第 3 方模块遵循下列准许许可：
| Boost | Boost 软件许可 1.0 |
| CSS 颜色剖析器 | MIT 许可 |
| Clip2Tri Polygon Triangulation Library | MIT 许可 |
| Clipper Polygon Clipping Library, version 6.4.0 | Boost 软件许可 1.0 |
| Earcut | ISC 许可 |
| Earcut 多边形三角测量库 | ISC 许可 |
| Mapbox GL Native | BSD 2 条款简化许可 |
| Poly2Tri Polygon Triangulation Library | BSD 3 条款新 (或修订) 许可 |
| RapidJSON | MIT 许可 |
| Vector Tile Library | ISC 许可 |
| Wagyu Geometry Processing Library | MIT 许可 |
| cURL 剖析日期 | MIT 许可 |
| geojson-cpp | ISC 许可 |
| geojson-vt-cpp | ISC 许可 |
| geometry.hpp | ISC 许可 |
| kdbush.hpp | ISC 许可 |
| libc++ | MIT and UIUC (BSD-like) |
| nunicode | MIT 许可 |
| polylabel | ISC 许可 |
| protozero | BSD 2 条款简化许可 |
| shelf-pack-cpp | ISC 许可 |
| supercluster.hpp | ISC 许可 |
| tao_tuple | MIT 许可 |
| unique_resource | Boost 软件许可 1.0 |
| variant | BSD 3 条款新 (或修订) 许可 |