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Telnet usage: Difference between revisions
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FG has a low bandwidth "command" (aka telnet) interface where you can interactively (or automatically via an external program) examine and modify just about any internal variable in the sim. This gives you a great capability to do external scripting, external operater gui's, etc. For instance, if you have your own GUI for operating the sim and want to use it to set weather conditions, you can leverage the FG telnet interface to have your own program remotely configure the environmental settings in all your FG based visual channels. | FG has a low bandwidth "command" (aka telnet) interface where you can interactively (or automatically via an external program) examine and modify just about any internal variable in the sim. This gives you a great capability to do external scripting, external operater gui's, etc. For instance, if you have your own GUI for operating the sim and want to use it to set weather conditions, you can leverage the FG telnet interface to have your own program remotely configure the environmental settings in all your FG based visual channels. | ||
For | Many things (view parameters, weather, time of day, etc.) are configurable via the property system. For things like weather and view selection which don't change rapidly, you can send over new property values using the "telnet" interface. For things that could change rapidly (like view position/orientation) you probably want to blast over udp packets at 60hz or whatever your screen refresh rate. | ||
The --props= option can be used to accept property configuration changes (things like weather effects and time of day.) You can use this interface to read/write individual properties. You could set up a separate gui configured to know the ip addresses of all the slaves so it could update them appropriately to make a change. For the time of day, this presupposes that all the computer clocks are pretty closely in sync ... then you can send the same time offset to them (in seconds) so they all can display the same time of day effects. | |||
FlightGear can be configured to act like a telnet or even an http "server". It can watch a port for incoming connections and respond appropriately, these built-in daemons support multiple connections. | FlightGear can be configured to act like a telnet or even an http "server". It can watch a port for incoming connections and respond appropriately, these built-in daemons support multiple connections. | ||