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  2. Restrictions on geographic data in China - Wikipedia

    en.wikipedia.org/wiki/Restrictions_on_geographic...

    Google uses GCJ-02 data for the street map, but does not shift the satellite imagery layer, which continues to use WGS-84 coordinates, [45] with the benefit that WGS-84 positions can still be overlaid correctly on the satellite image (but not the street map). Google Earth also uses WGS-84 to display the satellite imagery. [46]

  3. 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.

  4. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    SoilGrids1km is a collection of updatable soil property and class maps of the world at a resolution of 1 km produced using state-of-the-art model-based statistical methods. Presents estimates (means and 90% confidence intervals) for pH, texture (sa, si, cl), organic carbon and more for 6 depth layers up to 2 m depth. Harmonized World Soil Database

  5. Wikipedia : Graphics Lab/Resources/GIS sources and palettes

    en.wikipedia.org/wiki/Wikipedia:Graphics_Lab/...

    To use the QGis palettes, simply copy-paste the code into a text document, then save as PALETTENAME.qml. Then, in QGis and while working on a layer : QGis > Layer > Properties > Load a style > [browse, select the .qml file, load] > Apply. It is advised to create a specific '/Mapcolors' folder to store these .qml files.

  6. Keyhole Markup Language - Wikipedia

    en.wikipedia.org/wiki/Keyhole_Markup_Language

    It was created by Keyhole, Inc, which was acquired by Google in 2004. KML became an international standard of the Open Geospatial Consortium in 2008. [1] [2] Google Earth was the first program able to view and graphically edit KML files, but KML support is now available in many GIS software applications, such as Marble, [3] QGIS, [4] and ArcGIS ...

  7. Web Map Service - Wikipedia

    en.wikipedia.org/wiki/Web_Map_Service

    GetFeatureInfo – if a layer is marked as 'queryable' then you can request data about a coordinate of the map image. DescribeLayer – returns the feature types of the specified layer or layers, which can be further described using WFS or WCS requests. This request is dependent on the Styled Layer Descriptor (SLD) Profile of WMS. [12]

  8. Data model (GIS) - Wikipedia

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

    For example, a data model for a city would include a list of data layers to be included (e.g., roads, buildings, parcels, zoning), with each being specified with the type of generic spatial data model being used (e.g. raster or vector), choices of parameters such as coordinate system, and its attribute columns.

  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.