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Geoclue: The Geoinformation Service
===================================
Geoclue is a D-Bus geoinformation service. The goal of the Geoclue project
is to make creating location-aware applications as simple as possible.
Geoclue is Free Software, licensed under GNU GPLv2+.
Geoclue comprises the following functionalities :
- WiFi-based geolocation (accuracy: in meters)
- GPS(A) receivers (accuracy: in centimeters)
- GPS of other devices on the local network, e.g smartphones (accuracy:
in centimeters)
- 3G modems (accuracy: in kilometers, unless modem has GPS)
- GeoIP (accuracy: city-level)
- Static location source (reads location from a system-wide file)
WiFi-based geolocation makes use of
[Mozilla Location Service](https://wiki.mozilla.org/CloudServices/Location).
If geoclue is unable to find you, you can easily fix that by installing
and running a
[simple app](https://wiki.mozilla.org/CloudServices/Location#Contributing) on
your phone. For using phone GPS, you'll need to install the latest version of
[GeoclueShare app](https://github.com/ankitstarski/GeoclueShare/releases)
on your phone (currently, this is supported only on Android devices).
Geoclue was also used for (reverse-)geocoding but that functionality has
been dropped in favour of the
[geocode-glib library](http://ftp.gnome.org/pub/GNOME/sources/geocode-glib/).
# History
Geoclue was started during the GNOME Summit 2006 in Boston. At least
Keith Preston and Tuomas Kuosmanen can be blamed. There was a total rewrite
after version 0.9.
There was yet another rewrite that we call geoclue2. The first version to
introduce the re-write was version 1.99.
# Communication and Contribution
- Discussions take place on the
[GNOME Discourse](https://discourse.gnome.org/c/platform).
- The IRC chat for geoclue is on __#gnome-maps__ at irc.gimp.org .
- Issues are tracked on
[Gitlab](https://gitlab.freedesktop.org/geoclue/geoclue/issues).
# Get Source Code
The source code is available as a tar-ball and in a Git repository.
For latest release tarballs, use the `Download` option of Gitlab on the
[tag of your choice](https://gitlab.freedesktop.org/geoclue/geoclue/tags/).
Older (than 2.4.13) releases are available
[here](http://www.freedesktop.org/software/geoclue/releases/2.4/).
Git repository for Geoclue: https://gitlab.freedesktop.org/geoclue/geoclue
# Building Geoclue
The guidelines for building geoclue have been documented
[here](https://gitlab.freedesktop.org/geoclue/geoclue/blob/master/HACKING.md).
# Using Geoclue in an application
- __D-Bus API__: The documentation for using geoclue with D-Bus API is
[here](http://www.freedesktop.org/software/geoclue/docs/).
- __Libgeoclue API documentation__: The documentation is available
[here](https://www.freedesktop.org/software/geoclue/docs/libgeoclue/).
- __C user application__:
[Here](https://gitlab.freedesktop.org/geoclue/geoclue/blob/master/demo/where-am-i.c)
is an example showing a C application that uses
geoclue to locate its user.
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