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local: preamble displays others servers browsers downloads end
Crossfeed 'feeds' on packets from the flightgear multiplayer server, fgms which in turn gets packets from FlightGear, a free flight simulation program. fgms is a multiplayer network, so when the 'multiplayer' commmand is added when running 'fgfs', the aircraft movements are transmitted to a multiplayer server, and crossfeed 'feeds' on these multiplayer packets, and offers the currrent list of active fliers on a http port, like flights. This JSON data can be displayed in various forms.
And, as for a long time now, such displays are caught up in the ever ongoing, perhaps forever Browser Wars ;=((
The simplest 2D display is using OSM is map-test.
WARNING: THIS DOES NOT WORK IN ALL BROWSERS
A very interesting 3D display, if it works!, using three.js and WebGL is globe.html
WARNING: AS ABOVE THIS DOES NOT WORK IN ALL BROWSERS
This presently does not use 'crossfeed' data, but could - mpmap01.flightgear.org - It uses another feature of the fgms servers, and that is they support a telnet port, where all the current active 'fliers' on the FlightGear multiplayer network will be reported. I call this 'telnet bashing' ;=)) But it works well...
A list of the currently active fgms servers is mpserver16.flightgear.org. It shows all the fgms servers, and their status. A similar diaplay of fgms status can be seen at mpmap01.flightgear.org/mpstatus/. Or the first, pigeond.net/flightgear/mpstatus/, but on the last check does NOT show all the current servers. Again different browsers yield different results, unfortunately!
In an ideal world ALL web browsers should do the same thing. Very unfortunately this is NOT the case. Microsoft Internet Explorer, IE, while one of the most ubiquitous browser, often FAILS to keep up with the latest web development. If it FAILS, try google chrome or firefox as other FREE alternatives
The full (FOSS) SOURCE of 'crossfeed', license GNU GPL v2.0, can be downloaded from crossfeed. The build from the source uses CMake, so should build in any OS. But since crossfeed depends on the fgms server, which in turn depends on flightgear it has a dependence on the flightgear utility library simgear. Do it would be normal to first build flightgear, progress to the fgms server, and then tackle crossfeed.
cf/index.html - 20130227