Search results
Results from the WOW.Com Content Network
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.
This was most common from the 1970s through the early 1990s, because GIS software developers had to invent their own geometry data structures, but incorporated existing relational database file formats for the attributes. For example, the Esri Shapefile format includes the .dbf file from the DOS dBase software.
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 )
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.
JSON5 ("JSON5 Data Interchange Format") is an extension of JSON syntax that, just like JSON, is also valid JavaScript syntax. The specification was started in 2012 and finished in 2018 with version 1.0.0. [ 62 ]
The syntax and semantic of the CRS parameter, separated by a semicolon, is described at section 8.3 of RFC 5870. Examples: The Washington Monument's location expressed with UTM-zone 18N and its standard ID: geo:323482,4306480;crs=EPSG:32618;u=20; A geo URI for a hypothetical lunar CRS created in 2011 might be:
Use GeoJSON data directly; Use a combination of data sources together (direct GeoJSON, external data from Wikimedia Commons and external data from OpenStreetMap) Have more options for directly styling data (data from Commons will inherit the styling specified in the .map page) Include multiple pieces of external data from Wikimedia Commons