Josh > > Vivian Meazza wrote: > > Hi, > > > > In the course of developing the KC135, I noticed that parts of the > autopilot > > function do not work in that model, copied from the B737 - the bits > > described as vor/loc and app. Investigation showed that the cause was > simple > > - in JSBSim a jet ac does not have vacuum system. No vacuum - no Heading > > Indicator - no Heading Indicator - no vor/loc etc. So quick as a flash > I > > rustled up an electrically driven one. Simple solution? Wrong: when I > tried > > to implement a dedicated instrument.xml configuration for the KC135, > using > > the new Heading Indicator, the old one was still present (and still > > inoperative). This is caused by xmlauto.cxx initiating before > > instrumentmgr.xml, and creating the unnecessary nodes which it needs. So > I > > changed the initiation order. But by this time I realised that the > simple > > Heading Indicator we have is not what would be fitted to a KC135, or > indeed > > any jet ac since the '50s onward. We need what I would call a flux gate > > compass (you might know a more modern term). This is more or less just > the > > property orientation/heading-magnetic-deg, but I thought that, for > > completeness a proper flux gate instrument electrically driven etc, > would be > > nice. So I coded up one, and amended xmlauto.cxx so that it uses > whichever > > sort is configured and does not generate spurious ones. > > > > Can't you just supply whatever property regarding the vacuum system that > the instrument is looking for? >
Why would I want to do that when a proper solution is to hand? It's only a handful of lines of code to fix this, and I've already written them. Vivian _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
