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  2. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    This is a list of GIS data sources (including some geoportals) that provide information sets that can be used in geographic information systems (GIS) and spatial databases for purposes of geospatial analysis and cartographic mapping. This list categorizes the sources of interest.

  3. Wikipedia : WikiProject U.S. Roads/Maps task force/Tutorial

    en.wikipedia.org/wiki/Wikipedia:WikiProject_U.S...

    However, while a shapefile encodes the coordinates as binary data, KML is expressed as textual XML data, which is easier to parse and edit. KML files are supported by many mapping applications, such as Google Earth , and can be reused by many people outside the project for a variety of purposes.

  4. OpenStreetMap - Wikipedia

    en.wikipedia.org/wiki/OpenStreetMap

    OpenStreetMap (abbreviated OSM) is a free, open map database updated and maintained by a community of volunteers via open collaboration. [4] Contributors collect data from surveys, trace from aerial photo imagery or satellite imagery, and import from other freely licensed geodata sources.

  5. Geographic data and information - Wikipedia

    en.wikipedia.org/wiki/Geographic_data_and...

    Geographic data and information are the subject of a number of overlapping fields of study, mainly: Geocomputation; Geographic information science. Geographic information science and technology; Geoinformatics; Geomatics; Geovisualization "Geospatial technology" may refer to any of "geomatics", "geomatics", or "geographic information technology."

  6. Zillow - Wikipedia

    en.wikipedia.org/wiki/Zillow

    Zillow Group, Inc., or simply Zillow, is an American tech real-estate marketplace company that was founded in 2006 [4] by co-executive chairmen Rich Barton [5] and Lloyd Frink, former Microsoft executives and founders of Microsoft spin-off Expedia; Spencer Rascoff, a co-founder of Hotwire.com; David Beitel, Zillow's current chief technology officer; and Kristin Acker, Zillow's current ...

  7. 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]

  8. Geographic information system - Wikipedia

    en.wikipedia.org/wiki/Geographic_Information_System

    This house number is interpolated from a range assigned to that road segment. If the user clicks at the midpoint of a segment that starts with address 1 and ends with 100, the returned value will be somewhere near 50. Note that reverse geocoding does not return actual addresses, only estimates of what should be there based on the predetermined ...

  9. Google Earth - Wikipedia

    en.wikipedia.org/wiki/Google_Earth

    Google Earth is a web and computer program that renders a 3D representation of Earth based primarily on satellite imagery.The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles.