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  2. A software capable to read coordinate reference systems in WKT 2 format can also read many (but not all) equivalent systems in WKT 1 format. [9] Some caveats exist, notably the removal of the TOWGS84 element [10] which is replaced by the BOUNDCRS element.

  3. GeoJSON - Wikipedia

    en.wikipedia.org/wiki/GeoJSON

    GeoJSON [1] is an open standard format designed for representing simple geographical features, along with their non-spatial attributes.It is based on the JSON format.. The features include points (therefore addresses and locations), line strings (therefore streets, highways and boundaries), polygons (countries, provinces, tracts of land), and multi-part collections of these types.

  4. Wikipedia : Graphics Lab/Resources/QGIS/Get ready

    en.wikipedia.org/.../Resources/QGIS/Get_ready

    Made using GIS data 'ETOPO1', QGis, this QGis tutorial, Inkscape, and the Wikipedia map conventions. Late Spring and Autumn Period, 5th centry BCE, before the breakup of Jin and the Qin move into Sichuan. QGis (full name: Quantum GIS) is a GPL license, cross-platform (Windows, Linux, Mac), and

  5. Geography Markup Language - Wikipedia

    en.wikipedia.org/wiki/Geography_Markup_Language

    The subset tool can generate profiles for many other reasons as well. Listing the elements and attributes to include in the resultant profile schema and running the tool results in a single profile schema file containing only the user-specified items and all of the element, attribute and type declarations on which the specified items depend.

  6. R-tree - Wikipedia

    en.wikipedia.org/wiki/R-tree

    Simple example of an R-tree for 2D rectangles Visualization of an R*-tree for 3D points using ELKI (the cubes are directory pages). R-trees are tree data structures used for spatial access methods, i.e., for indexing multi-dimensional information such as geographical coordinates, rectangles or polygons.

  7. Wikipedia:Obtaining geographic coordinates - Wikipedia

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

    Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude for the location. User interface in English language. Mapcoordinates: Map to coordinates: Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude and Elevation for the location. User interface in German language. NASA World Wind ...

  8. 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.

  9. Georeferencing - Wikipedia

    en.wikipedia.org/wiki/Georeferencing

    Graphical view of the affine transformation. The registration of an image to a geographic space is essentially the transformation from an input coordinate system (the inherent coordinates of pixels in the images based on row and column number) to an output coordinate system, a spatial reference system of the user's choice, such as the geographic coordinate system or a particular Universal ...