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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.
Figure 1: Features and their respective attributes in a map database. Maps are stored as graphs, or two dimensional arrays of objects with attributes of location and category, where some common categories include parks, roads, cities, and the like. A map database represents a road network along with associated features.
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.
Vector data can be displayed as vector graphics used on traditional maps, whereas raster data will appear as an image that may have a blocky appearance for object boundaries. (depending on the resolution of the raster file). Vector data can be easier to register, scale, and re-project, which can simplify combining vector layers from different ...
ViaMichelin - World maps, city maps, driving directions, Michelin-starred restaurants, hotel booking, traffic news and weather forecast with ViaMichelin. Germany "Geoportal.de", by the Federal Agency for Cartography and Geodesy (BKG). Hong Kong. Centamap – launched in 1999, Centamap is built using data from the Hong Kong Government
Data mappings can be done in a variety of ways using procedural code, creating XSLT transforms or by using graphical mapping tools that automatically generate executable transformation programs. These are graphical tools that allow a user to "draw" lines from fields in one set of data to fields in another.
Google Maps' location tracking is regarded by some as a threat to users' privacy, with Dylan Tweney of VentureBeat writing in August 2014 that "Google is probably logging your location, step by step, via Google Maps", and linked users to Google's location history map, which "lets you see the path you've traced for any given day that your ...
Customer to Business: Using a customer address list, specialized software can frame the map that shows a customer's location in relation to the business, and connects the two using a pre-existing street database. Multiple Location: Like the single location locator map, a GIS package is not required, though it also can be useful in quickly ...