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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.
Well-known text (WKT) is a text markup language for representing vector geometry objects. A binary equivalent, known as well-known binary (WKB), is used to transfer and store the same information in a more compact form convenient for computer processing but that is not human-readable.
Run the query, then click 'Export' in the toolbar and select the 'copy' part of 'download/copy as GeoJSON' In Wikimedia Commons, create a page in the Data: namespace with the .map extension, like Data:COTA10.map; When you create the page, replace the 'Data' placeholder (including the two brackets) with the GeoJSON you copied.
While JSON provides a syntactic framework for data interchange, unambiguous data interchange also requires agreement between producer and consumer on the semantics of specific use of the JSON syntax. [25] One example of where such an agreement is necessary is the serialization of data types that are not part of the JSON standard, for example ...
GeoJSON – open, lightweight format based on JSON, used by many open source GIS packages GeoMedia – Microsoft Access based format for spatial vector storage (by Intergraph ) ISFC – MicroStation based CAD solution attaching vector elements to a relational Microsoft Access database (by Intergraph )
data stored in GeoJSON format on Wikipedia or Commons; line/polygon features in OpenStreetMap. coordinates, either supplied or from Wikidata; raw GeoJSON, preferably transcluded from another page; Note: If you have a very large/slow map, you should use the mapframe extension tag directly instead of this template, as was done in Special:Diff ...
Leaflet's onEachFeature is quite handy when dealing with, for example, geojson data. The function contains two parameters: "feature" and "layer". "feature" allows us to access each object inside the geojson and "layer" allows us to add popups, tooltips etc. An example in javascript is given below:
GeoJSON map data cannot be directly uploaded and stored in the File namespace. While map data should usually be stored on Commons (see mw:Help:Map data), until August 2018 only CC0 licences were not allowed. Because of this former restriction, this process was set up so that data with licences compatible with Wikipedia's CC-BY-SA-3.0 licencing ...