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[1] [2] ARINC 424 specifies a 132-byte fixed-length record format. Each record consists of one piece of navigation information such as an airport, heliport, runway, waypoints, navaids, airways, arrival routes, and departure routes. [3]
A GPX file's main components include waypoints, routes, and tracks: A waypoint (wptType) consists of the WGS 84 (GPS) coordinates of a point and possibly other descriptive information. A route (rteType) is an ordered list of routepoints (or waypoints representing a series of significant turn or stage points) leading to a destination. [ 3 ]
KML files are very often distributed as KMZ files, which are zipped KML files with a .kmz extension. The contents of a KMZ file are a single root KML document and optionally any overlays, images, icons, and COLLADA 3D models referenced in the KML including network-linked KML files. The root KML document by convention is a file named "doc.kml ...
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.
The restricted random waypoint models the trajectory of a mobile user in a connected domain . Given a sequence of locations M 0 , M 1 , . . . {\displaystyle M_{0},M_{1},...} in A {\displaystyle A} , called waypoints, the trajectory of the mobile is defined by traveling from one waypoint M n {\displaystyle M_{n}} to the next M n + 1 ...
Wikiloc is a website, launched in 2006, [2] [3] [4] containing GPS trails and waypoints that members have uploaded. [3] This mashup shows the routes in frames showing Google Maps (with the possibility to show the layers of World Relief Map (maps-for-free.com), OpenStreetMap, the related OpenCycleMap, USGS Imagery Topo Base Map and USGS Topo Base Map).
The size of both .shp and .dbf component files cannot exceed 2 GB (or 2 31 bytes) — around 70 million point features at best. [6] The maximum number of feature for other geometry types varies depending on the number of vertices used. The attribute database format for the .dbf component file is based on an older dBase standard.
Waypoints may be a simple named point in space or may be associated with existing navigational aids, intersections, or fixes. A waypoint is most often used to indicate a change in direction, speed, or altitude along the desired path. Aviation RNAV procedures make use of both fly-over and fly-by waypoints. A fly-over waypoint is a waypoint that ...