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  2. MrSID - Wikipedia

    en.wikipedia.org/wiki/MrSID

    MrSID (pronounced Mister Sid) is an acronym that stands for multiresolution seamless image database.It is a file format (filename extension.sid) developed and patented [2] [3] by LizardTech (in October 2018 absorbed into Extensis) [4] for encoding of georeferenced raster graphics, such as orthophotos.

  3. Comparison of GIS vector file formats - Wikipedia

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

    Shapefile – open, hybrid vector data format using SHP, SHX and DBF files (by ESRI) Spatial Data File – high-performance geodatabase format, native to MapGuide (by Autodesk ) TIGER – Topologically Integrated Geographic Encoding and Referencing

  4. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    Government ArcGIS server addresses: Curated list of 3,500+ ArcGIS server addresses from federal to local. Updated once per week. Bad links fixed or flagged. NOAA Big Data Project: NOAA generates tens of terabytes of data a day from satellites, radars, ships, weather models, and other sources. While these data are publicly available, it is ...

  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. GIS file format - Wikipedia

    en.wikipedia.org/wiki/GIS_file_format

    Digital elevation model, map (image), and vector data. Like any digital image, raster GIS data is based on a regular tessellation of space into a rectangular grid of rows and columns of cells (also known as pixels), with each cell having a measured value stored.

  7. ArcGIS - Wikipedia

    en.wikipedia.org/wiki/ArcGIS

    ArcGIS 9 was released in May 2004, which included ArcGIS Server and ArcGIS Engine for developers. [39] The ArcGIS 9 release includes a geoprocessing environment that allows execution of traditional GIS processing tools (such as clipping, overlay, and spatial analysis) interactively or from any scripting language that supports COM standards.

  8. Data model (GIS) - Wikipedia

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

    In a manner similar to that shown in figure 11, the stack-unit's occurrence (the map unit's outcrop), geometry (the map unit's boundaries), and descriptors (the physical properties of the geologic units included in the stack-unit) are managed as they are for a typical 2-D geologic map. [31] Raster-based stacked surfaces depict the surface of ...

  9. Geographic information system - Wikipedia

    en.wikipedia.org/wiki/Geographic_Information_System

    Scanning a map results in raster data that could be further processed to produce vector data. When data is captured, the user should consider if the data should be captured with either a relative accuracy or absolute accuracy, since this could not only influence how information will be interpreted but also the cost of data capture.