Search results
Results From The WOW.Com Content Network
Well-known text representation of coordinate reference systems (WKT or WKT-CRS) is a text markup language for representing spatial reference systems and transformations between spatial reference systems. The formats were originally defined by the Open Geospatial Consortium (OGC) and described in their Simple Feature Access [1] and Well-known ...
OpenStreetMap (abbreviated OSM) is a free, open geographic database updated and maintained by a community of volunteers via open collaboration. Contributors collect data from surveys, trace from aerial photo imagery or satellite imagery, and also import from other freely licensed geodata sources.
Web Mercator, Google Web Mercator, Spherical Mercator, WGS 84 Web Mercator[1] or WGS 84/Pseudo-Mercator is a variant of the Mercator map projection and is the de facto standard for Web mapping applications. It rose to prominence when Google Maps adopted it in 2005. [2] It is used by virtually all major online map providers, including Google ...
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. The formats were originally defined by the Open Geospatial ...
OpenStreetMap Foundation. Paid for by various individuals and companies. HERE: Apple: Yandex: Data Feature Google Maps Bing Maps MapQuest Mapy.cz OpenStreetMap Here WeGo Apple Maps Yandex Maps; Age of satellite imagery 1–3 years [dubious – discuss] 1–3 years [citation needed] 1–4 years No 1–3 years 1–3 years 1–4 years Map data ...
t. e. EPSG Geodetic Parameter Dataset (also EPSG registry) is a public registry of geodetic datums, spatial reference systems, Earth ellipsoids, coordinate transformations and related units of measurement, originated by a member of the European Petroleum Survey Group (EPSG) in 1985. Each entity is assigned an EPSG code between 1024 and 32767 ...
Apple Maps - covers the whole country. Bing Maps – covers the whole country. Google Maps - covers the whole country. Libre Map Project. MapQuest - covers the whole country. The National Map by the United States Geological Survey. Roadtrippers - covers the whole country. TerraServer-USA - covers the whole country.
Align the map to the area you want to edit. Click 'Edit' by the website banner. Now you should see the 'Add Feature' options at the top, with buttons for 'Point', 'Line', and 'Area'. Click 'Area'. You can now start to form a shape, clicking on each corner, adjusting the edges of the shape as needed.