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  2. Comparison of GIS vector file formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_GIS_vector...

    Spatial Data File – high-performance geodatabase format, native to MapGuide (by Autodesk) TIGER – Topologically Integrated Geographic Encoding and Referencing; Vector Product Format – National Geospatial-Intelligence Agency (NGA)'s format of vectored data for large geographic databases

  3. Comparison of geographic information systems software

    en.wikipedia.org/wiki/Comparison_of_geographic...

    This is a comparison of notable GIS software. To be included on this list, the software must have a linked existing article. The selection of GIS software is a non-trivial task typically undertaken at project commencement. The use of appropriate selection criteria and methodology can be critical to a project's success, with considerations including outlay costs, ease of use, data and system ...

  4. QGIS - Wikipedia

    en.wikipedia.org/wiki/QGIS

    QGIS supports shapefiles, personal geodatabases, dxf, MapInfo, PostGIS, and other industry-standard formats. [5] Web services, including Web Map Service and Web Feature Service, are also supported to allow use of data from external sources. [6] QGIS integrates with other open-source GIS packages, including PostGIS, GRASS GIS, SAGA GIS, and ...

  5. 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.

  6. 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 ]

  7. Georelational data model - Wikipedia

    en.wikipedia.org/wiki/Georelational_data_model

    Shapefile (Esri 1992–present) As the GIS industry grew to incorporate more casual users, the inherent complexity of the coverage data structure became a concern. When Esri released ArcView GIS 2.0 in 1992, it introduced the new shapefile format for vector data. This was a much simpler data model, eliminating features such as topology, but was ...

  8. US looking into reported detention of American-Iranian ... - AOL

    www.aol.com/us-looking-reported-detention...

    An American-Iranian journalist who once worked for a US-funded broadcaster is believed to have been detained in Iran, according to his former employer and multiple press freedom groups.

  9. GIS file format - Wikipedia

    en.wikipedia.org/wiki/GIS_file_format

    A GIS file format is a standard for encoding geographical information into a computer file, as a specialized type of file format for use in geographic information systems (GIS) and other geospatial applications.