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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. Luciad - Wikipedia

    en.wikipedia.org/wiki/Luciad

    Luciad is one of several spin-offs of the KU Leuven. [10] Dr. Lode Missiaen worked as a senior scientist at the NATO C3 Agency in The Hague, the Netherlands after obtaining his doctorate at the KU Leuven in 1991. At NATO, he was responsible for the study, development, and application of modern software technologies in the field of Air Traffic ...

  4. 3D city model - Wikipedia

    en.wikipedia.org/wiki/3D_city_model

    The 3D model of Berlin allows viewers to look at the city as it is now, as it once was, and as the city might turn into in the future. A 3D city model is digital model of urban areas that represent terrain surfaces, sites, buildings, vegetation, infrastructure and landscape elements in three-dimensional scale as well as related objects (e.g., city furniture) belonging to urban areas.

  5. Geographic information system - Wikipedia

    en.wikipedia.org/wiki/Geographic_Information_System

    Basic GIS concept. A geographic information system (GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. [1] [2] Much of this often happens within a spatial database; however, this is not essential to meet the definition of a GIS. [1]

  6. 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 ...

  7. Geographic information system software - Wikipedia

    en.wikipedia.org/wiki/Geographic_information...

    A GIS software program is a computer program to support the use of a geographic information system, providing the ability to create, store, manage, query, analyze, and visualize geographic data, that is, data representing phenomena for which location is important.

  8. Data model (GIS) - Wikipedia

    en.wikipedia.org/wiki/Data_model_(GIS)

    Some of these were developed specifically for GIS, while others have been adopted from 3D computer graphics or computer-aided drafting (CAD). Height fields (also known as "2 1/2 dimensional surfaces") model three-dimensional phenomena by a single functional surface, in which elevation is a function of two-dimensional location, allowing it to be ...

  9. Canada Geographic Information System - Wikipedia

    en.wikipedia.org/wiki/Canada_Geographic...

    The Canada Geographic Information System (CGIS) was an early geographic information system (GIS) developed for the Government of Canada beginning in the early 1960s. CGIS was used to store geospatial data for the Canada Land Inventory and assisted in the development of regulatory procedures for land-use management and resource monitoring in Canada.