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  2. Geospatial PDF - Wikipedia

    en.wikipedia.org/wiki/Geospatial_PDF

    The popularity of geographic information systems (GIS) and geospatial technology amongst its users has increased the need to share information. [2] However, an obstacle to sharing geospatial data can sometimes be the large file sizes or that the end recipient does not have the appropriate software or reader.

  3. 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. Since the 1970s, dozens of formats have been created based on various data models for various purposes

  4. 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.

  5. GeoPDF - Wikipedia

    en.wikipedia.org/wiki/GeoPDF

    GeoPDF products use geospatial PDF as a container for maps, imagery, and other data used to deliver an enhanced user experience in TerraGo applications. However, GeoPDF products conform to published specifications including both the OGC best practice for PDF georegistration as well as Adobe's proposed geospatial extensions to ISO 32000, making ...

  6. Geographic information system software - Wikipedia

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

    The software component of a traditional geographic information system is expected to provide a wide range of functions for handling spatial data: [11]: 16 Data management, including the creation, editing, and storage of geographic data, as well as transformations such as changing coordinate systems and converting between raster and vector models.

  7. Geographic information system - Wikipedia

    en.wikipedia.org/wiki/Geographic_Information_System

    Geographic information system (GIS) is a commonly used tool for environmental management, modelling and planning. As simply defined by Michael Goodchild, GIS is as "a computer system for handling geographic information in a digital form". [66] In recent years it has played an integral role in participatory, collaborative and open data philosophies.

  8. Data model (GIS) - Wikipedia

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

    Because the world is much more complex than can be represented in a computer, all geospatial data are incomplete approximations of the world. [9] Thus, most geospatial data models encode some form of strategy for collecting a finite sample of an often infinite domain, and a structure to organize the sample in such a way as to enable interpolation of the nature of the unsampled portion.

  9. Shapefile - Wikipedia

    en.wikipedia.org/wiki/Shapefile

    .qix — an alternative quadtree spatial index used by MapServer and GDAL/OGR software {content-type: x-gis/x-shapefile} In each of the .shp, .shx, and .dbf files, the shapes in each file correspond to each other in sequence (i.e., the first record in the .shp file corresponds to the first record in the .shx and .dbf files, etc.).