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  2. Web Mercator projection - Wikipedia

    en.wikipedia.org/wiki/Web_Mercator_projection

    The standard style for OpenStreetMap, like most Web maps, uses the Web Mercator projection. Web Mercator, Google Web Mercator, Spherical Mercator, WGS 84 Web Mercator [1] or WGS 84/Pseudo-Mercator is a variant of the Mercator map projection and is the de facto standard for Web mapping applications. It rose to prominence when Google Maps adopted ...

  3. List of satellite map images with missing or unclear data

    en.wikipedia.org/wiki/List_of_satellite_map...

    Blurred intentionally on Bing Maps. [15] Rendered in lower resolution on Google Maps and Mapquest. Heliport [16] in El Ejido: Spain: Square blurred on Google and Bing. Visible e.g. in HERE WeGo and Yandex.

  4. Geography Markup Language - Wikipedia

    en.wikipedia.org/wiki/Geography_Markup_Language

    A Point Profile for applications with point geometric data but without the need for the full GML grammar; A GML Simple Features profile supporting vector feature requests and transactions, e.g. with a WFS; A GML profile for GMLJP2 (GML in JPEG 2000); A GML profile for RSS. Profiles are distinct from application schemas.

  5. Shapefile - Wikipedia

    en.wikipedia.org/wiki/Shapefile

    The shapefile format is a geospatial vector data format for geographic information system (GIS) software.It is developed and regulated by Esri as a mostly open specification for data interoperability among Esri and other GIS software products. [1]

  6. QGIS - Wikipedia

    en.wikipedia.org/wiki/QGIS

    QGIS is a geographic information system (GIS) software that is free and open-source. [2] QGIS supports Windows, macOS, and Linux. [3] It supports viewing, editing, printing, and analysis of geospatial data in a range of data formats.

  7. OpenStreetMap - Wikipedia

    en.wikipedia.org/wiki/OpenStreetMap

    Locator maps on Wikipedia and Wikivoyage articles for cities and points of interest are powered by a MediaWiki extension and the OSM-based Wikimedia Maps service. [95] The locator maps on Craigslist , [ 96 ] Facebook , [ 97 ] Flickr , [ 98 ] Foursquare City Guide , [ 99 ] Gurtam 's Wialon, [ 100 ] and Snapchat [ 101 ] are also powered by OSM.

  8. Vincenty's formulae - Wikipedia

    en.wikipedia.org/wiki/Vincenty's_formulae

    Vincenty's formulae are two related iterative methods used in geodesy to calculate the distance between two points on the surface of a spheroid, developed by Thaddeus Vincenty (1975a). They are based on the assumption that the figure of the Earth is an oblate spheroid, and hence are more accurate than methods that assume a spherical Earth, such ...

  9. Geohash - Wikipedia

    en.wikipedia.org/wiki/Geohash

    This search will retrieve all points in the z-order curve between the two corners, which can be far too many points. This method also breaks down at the 180 meridians and the poles. Solr uses a filter list of prefixes, by computing the prefixes of the nearest squares close to the geohash [1] .

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