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Principles of geolocation using GPS. Geopositioning is the process of determining or estimating the geographic position of an object or a person. [1]Geopositioning yields a set of geographic coordinates (such as latitude and longitude) in a given map datum; positions may also be expressed as a bearing and range from a known landmark.
If geolocation software maps IP addresses associated with an entire county or territory to a particular location, such as the geographic center of the territory, this can cause considerable problems for the people who happen to live there, as law enforcement authorities and others may mistakenly assume any crimes or other misconduct associated with the IP address to originate from that ...
Centamap – launched in 1999, Centamap is built using data from the Hong Kong Government; GeoInfo Map [1] – a geospatial information service provided by the Hong Kong Special Administrative Region (HKSAR) Government.
What3words (stylized as what3words) is a proprietary geocode system designed to identify any location on the surface of Earth with a resolution of about 3 metres (9.8 ft). It is owned by What3words Limited, based in London, England.
The W3C Geolocation API is also supported by Opera Mobile 10.1 – available for Android and Symbian devices (S60 generations 3 & 5) since 24 November 2010. [9] Browsers initially allowed access to the API in insecure contexts, but in the context of Secure Contexts, [ 10 ] browsers, e.g., Chrome, [ 11 ] now generally require a secure connection.
OpenStreetMap was created by Steve Coast in response to the Ordnance Survey, the United Kingdom's national mapping agency, failing to release its data to the public under free licences in 2004. Initially, maps were created only via GPS traces , but it was quickly populated by importing public domain geographical data such as the U.S. TIGER and ...
Reverse geocoding is the process of converting a location as described by geographic coordinates (latitude, longitude) to a human-readable address or place name. It is the opposite of forward geocoding (often referred to as address geocoding or simply "geocoding"), hence the term reverse.
The use of basic (lower-precision) Galileo services is free and open to everyone. A fully encrypted higher-precision service is available for free to government-authorized users. [12] [13] Galileo is also to provide a new global search and rescue (SAR) function as part of the MEOSAR system.