Re: [Flightgear-devel] Problems with Reset
Jon Stockill said: On Thu, 1 Apr 2004, Jim Wilson wrote: In either case the aircraft is a little too high off the pavement on restart and crashes. I'll take a look later today or tomorrow unless someone else gets to it first. I've had problems like this just *starting* the sim with the fokker 50 100. They just flip over on their backs. It's almost like there's no contact point on the wingtips to stop them falling over if they don't balance perfectly on the wheels. That may be related, but I'm not sure. AFAIK those are not completed flight models. Best, Jim ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Problems with Reset
Jim Wilson wrote: Jon Stockill said: On Thu, 1 Apr 2004, Jim Wilson wrote: In either case the aircraft is a little too high off the pavement on restart and crashes. I'll take a look later today or tomorrow unless someone else gets to it first. I've had problems like this just *starting* the sim with the fokker 50 100. They just flip over on their backs. It's almost like there's no contact point on the wingtips to stop them falling over if they don't balance perfectly on the wheels. That may be related, but I'm not sure. AFAIK those are not completed flight models. These are flight models as generated by aeromatic and hence quite complete. Although they are not fine tuned (and therefore may contain problems like a wrong balance). Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Problems with Reset
Erik Hofman said: Jim Wilson wrote: Jon Stockill said: On Thu, 1 Apr 2004, Jim Wilson wrote: In either case the aircraft is a little too high off the pavement on restart and crashes. I'll take a look later today or tomorrow unless someone else gets to it first. I've had problems like this just *starting* the sim with the fokker 50 100. They just flip over on their backs. It's almost like there's no contact point on the wingtips to stop them falling over if they don't balance perfectly on the wheels. That may be related, but I'm not sure. AFAIK those are not completed flight models. These are flight models as generated by aeromatic and hence quite complete. Although they are not fine tuned (and therefore may contain problems like a wrong balance). Yeah that's what I meant ;-) Best, Jim ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Problems with Reset
On Thu, 1 Apr 2004, Jim Wilson wrote: In either case the aircraft is a little too high off the pavement on restart and crashes. I'll take a look later today or tomorrow unless someone else gets to it first. I've had problems like this just *starting* the sim with the fokker 50 100. They just flip over on their backs. It's almost like there's no contact point on the wingtips to stop them falling over if they don't balance perfectly on the wheels. -- Jon Stockill [EMAIL PROTECTED] ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Problems with Reset
On Thursday 01 Apr 2004 2:42 pm, Marcio Shimoda wrote: Hi! After few seconds of flight, I crashed the airplane (c172-3d). Then I did reset FG, but when it restarted, the airplane appeared upside-down and pointed to the end of track. Somebody has the same problem? Marcio Yes, I do. It's not often that I use the reset (I have it mapped to the 'safed' button on the top of my Saitek X45: http://www.saitek.com/uk/images/product/pcp/x45.jpg ) but it does just as you say. If you switch to an external view *really fast* after resetting, you can see the plane tumbling down in a short fall; I have the impression that it starts with the nose pointing vertically upwards, but I can't switch views *that* fast! I'm using CVS checked out on March 20th - time for an update! Regards Jonathan ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Problems with Reset
Jonathan Richards said: On Thursday 01 Apr 2004 2:42 pm, Marcio Shimoda wrote: Hi! After few seconds of flight, I crashed the airplane (c172-3d). Then I did reset FG, but when it restarted, the airplane appeared upside-down and pointed to the end of track. Somebody has the same problem? Marcio Yes, I do. It's not often that I use the reset (I have it mapped to the 'safed' button on the top of my Saitek X45: http://www.saitek.com/uk/images/product/pcp/x45.jpg ) but it does just as you say. If you switch to an external view *really fast* after resetting, you can see the plane tumbling down in a short fall; I have the impression that it starts with the nose pointing vertically upwards, but I can't switch views *that* fast! I'm using CVS checked out on March 20th - time for an update! The reset is probably picking up the wrong elevation to reset to. There are a couple of things that could cause this. Usually it has been either getting the units getting screwed up (meters for feet) or the elevation being saved earlier is not the correct one for the airport (i.e. the save is happening too soon). In either case the aircraft is a little too high off the pavement on restart and crashes. I'll take a look later today or tomorrow unless someone else gets to it first. Best, Jim ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Problems with Reset
On Thursday 01 Apr 2004 8:38 pm, Jim Wilson wrote: Jonathan Richards said: On Thursday 01 Apr 2004 2:42 pm, Marcio Shimoda wrote: Hi! After few seconds of flight, I crashed the airplane (c172-3d). Then I did reset FG, but when it restarted, the airplane appeared upside-down and pointed to the end of track. Somebody has the same problem? Marcio Yes, I do. snip The reset is probably picking up the wrong elevation to reset to. There are a couple of things that could cause this. Usually it has been either getting the units getting screwed up (meters for feet) or the elevation being saved earlier is not the correct one for the airport (i.e. the save is happening too soon). In either case the aircraft is a little too high off the pavement on restart and crashes. I'll take a look later today or tomorrow unless someone else gets to it first. Jim I have just checked out new cvs versions of everything, and recompiled. Neither the reset function, nor the menu option 'Location | Position Aircraft (on ground) work properly. The reset button is bound to old-reinit-dialog (src/GUI/menubar.cxx) and starts the c172-3d off with a rapid forward somersaulting rotation some feet above the ground; I have time to complete three-quarters of a turn before crashing through the tarmac. The Location dialog is less predictable but the outcome's never good :¬/ menubar.cxx is liberally provided with FIXME comments and refers to Deprecated wrappers, but I don't think that can be relevant ...? I have pored over src/Main/fg_commands.cxx (which is, I guess, where the reinitialization is done - can you tell I'm out of my depth?) but I can't see why the re-initialization should have a different outcome to the first initialization - it's just re-reading the presets, AFAICS. Jonathan ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Problems with Reset
Jonathan Richards said: I have pored over src/Main/fg_commands.cxx (which is, I guess, where the reinitialization is done - can you tell I'm out of my depth?) but I can't see why the re-initialization should have a different outcome to the first initialization - it's just re-reading the presets, AFAICS. Of course it shouldn't, that's why it is a bug. :-) I think this reinit is done in fg_init.cxx. In order to understand what I described you'll need to follow up on ground elevation and how that is initialized. It ends up being used to position the aircraft. The two newer FDM's will do the ground triming quite well if the initial aircraft altitude is reasonably close to the ground elevationbut if the aircraft is something like 150ft in the air at start, it'll usually dive and/or flip on its way to the ground. Best, Jim ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
