All of the properties originally set by the FGSteam module in the /steam property hierarchy have now been replaced by individual instrumentation modules. The /steam property branch, along with src/Cockpit/steam.[ch]xx, will soon be disappearing from FlightGear.
I'd like to take a moment to thank Alex Perry for the original FGSteam module, from which I've stolen most of the hard code for the new instrumentation stuff. Alex did an outstanding job on FGSteam, giving FlightGear remarkably realistic instrument behaviour compared to commercial sims I've tried like FS98, FLY!, and Elite. He is the one who has been urging me to dump FGSteam now, but I still wanted to acknowledge how important that module has been to FlightGear. Here are the original steam properties that will soon be disappearing: /steam/airspeed-kt /steam/altitude-ft /steam/altimeter-datum-mb /steam/turn-rate /steam/slip-skid /steam/vertical-speed-fps /steam/gyro-compass-deg /steam/gyro-compass-error-deg /steam/mag-compass-deg Here are the new instrumentation properties that replace them: /instrumentation/airspeed-indicator/serviceable /instrumentation/airspeed-indicator/indicated-speed-kt /instrumentation/attitude-indicator/serviceable /instrumentation/attitude-indicator/horizon-offset-deg /instrumentation/attitude-indicator/indicated-pitch-deg /instrumentation/attitude-indicator/indicated-roll-deg /instrumentation/altimeter/serviceable /instrumentation/altimeter/setting-inhg /instrumentation/altimeter/indicated-altitude-ft /instrumentation/turn-indicator/serviceable /instrumentation/turn-indicator/spin /instrumentation/turn-indicator/indicated-turn-rate /instrumentation/slip-skid-ball/serviceable /instrumentation/slip-skid-ball/indicated-slip-skid /instrumentation/heading-indicator/serviceable /instrumentation/heading-indicator/spin /instrumentation/heading-indicator/offset-deg /instrumentation/heading-indicator/indicated-heading-deg /instrumentation/vertical-speed-indicator/serviceable /instrumentation/vertical-speed-indicator/indicated-speed-fpm /instrumentation/magnetic-compass/serviceable /instrumentation/magnetic-compass/indicated-heading-deg Note that every instrument has a "serviceable" property; if you set that to 'false', the instrument will stop functioning; it will also stop working, or start working improperly, if there is a failure in one of the systems it depends on (such as the static or vacuum system). The gyros all have a 'spin' property, from 0.0 (stationary) to 1.0 (spinning full speed). This way, you can start the plane mid-flight without having to watch the gyros spin up again. Please everyone (especially Alex) give all of these a good workout before I remove steam.[ch]xx from the CVS repository. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
