On 9/24/05, Curtis L. Olson [EMAIL PROTECTED] wrote:
One thing we'd like to do that wouldn't be too technically difficult
would be to get a 2nd receiver on the same channel as the aircraft but
keep it on the ground. Pipe the servo outputs from the ground based
receiver into a little PIC board
Eric Sorton wrote:
Hi Curt,
FMA Direct FS8 Receiver has serial output which can be used with their
Windows software to view the current position of the control outputs.
If they provide the protocol (or if it can be reverse engineered), you
could simply read the output of the receiver
Arnt Karlsen wrote:
..ahem, the big guys use opening shock damper rings to keep chute loads
safe throughout the speed range, these rings use the chute opening loads
to slow the chute opening. ;o)
Except that I heard a story recently about a guy that got himself into a
bad high speed
, 2005 12:12 PM
Subject: Re: [Flightgear-devel] Crash carnage
Arnt Karlsen wrote:
..ahem, the big guys use opening shock damper rings to keep chute loads
safe throughout the speed range, these rings use the chute opening loads
to slow the chute opening. ;o)
Except that I heard a story
On Sun, 25 Sep 2005 14:12:13 -0500, Curtis wrote in message
[EMAIL PROTECTED]:
Arnt Karlsen wrote:
..ahem, the big guys use opening shock damper rings to keep chute
loads safe throughout the speed range, these rings use the chute
opening loads to slow the chute opening. ;o)
This is somewhat off topic, but in the spirit of open source I'd like to
share the tragedies as well as the triumphs ...
http://www.flightgear.org/~curt/Models/Special/Rascal110_1/
This is part of a university project I'm helping out with. We have a
backup plane and our expensive
On Saturday 24 Sep 2005 16:28, Curtis L. Olson wrote:
This is somewhat off topic, but in the spirit of open source
I'd like to share the tragedies as well as the triumphs ...
http://www.flightgear.org/~curt/Models/Special/Rascal110_1/
This is part of a university project I'm helping out
On Saturday 24 September 2005 16:28, Curtis L. Olson wrote:
This is somewhat off topic, but in the spirit of open source I'd like to
share the tragedies as well as the triumphs ...
http://www.flightgear.org/~curt/Models/Special/Rascal110_1/
This is part of a university project I'm helping
On Saturday 24 September 2005 20:07, Curtis L. Olson wrote:
It's definitely an interesting thought. Anyone know what size parachute
a person would need to gentle let down about 15 lbs (7kg)? Many R/C
receivers have a failsafe mode so you can trigger the servos to go to
preset locations in
On Saturday 24 September 2005 16:28, Curtis L. Olson wrote:
This is somewhat off topic, but in the spirit of open source I'd like to
share the tragedies as well as the triumphs ...
http://www.flightgear.org/~curt/Models/Special/Rascal110_1/
This is part of a university project I'm helping
Dave Martin wrote:
Just done some more reading of your page and incident analysis; I was just
thinking that a useful tool would be a couple of camcorders. (and a friend to
operate one of them).
If you set one up on a tripod looking at the transmitter, you could at least
see what control
Le samedi 11 juin 2005 22:07 +, Martin Spott a crit :
Gerard Robin wrote:
Sorry ,I probably, missed something but i have no access to CVS
respective changelog entry,
http://baron.flightgear.org/pipermail/flightgear-cvslogs/
Look at the recent changes made by Erik,
Dave Culp wrote:
Just checked in a JSBSim.hxx and JSBSim.cxx to JSBSim CVS that makes crash
handling user-configurable. The default behavior is the current
subterranean flying behavior. If the user sets the property
/sim/pause-on-crash to true, then the sim will pause on crash, which is the
Le jeudi 09 juin 2005 20:52 -0500, Dave Culp a crit :
As for the /fdm/jsbsim property cloning problem, this has been around for
some time now. Any reset of FlightGear while using a JSBSim aircraft will
cause another /fdm/jsbsim node to be created. I've tried stopping that but
have had
Le vendredi 10 juin 2005 12:33 +0200, Gerard ROBIN a crit :
Le jeudi 09 juin 2005 20:52 -0500, Dave Culp a crit :
As for the /fdm/jsbsim property cloning problem, this has been around for
some time now. Any reset of FlightGear while using a JSBSim aircraft will
cause another
Erik Hofman wrote:
Dave Culp wrote:
If the user sets the property /sim/pause-on-crash to true, then
the sim will pause on crash, which is the same behavior Yasim has,
so this should be the default for FlightGear. If the user sets the
property /sim/reset-on-crash to true, then the sim
Message transfr
De: Gerard Robin [EMAIL PROTECTED]
: [EMAIL PROTECTED]
Objet: Re: [Jsbsim-devel] crash handling options for JSBSim in
FlightGear
Date: Fri, 10 Jun 2005 23:13:21 +0200
Le vendredi 10 juin 2005 14:59 -0500, Dave Culp a crit :
It seems like I misunderstood
Nobody wants subterranean flying. This will make the crash handling much
cleaner. We can make pause the default behavior and reset the optional
behavior, based on a property reset-on-crash.
Everyone agreed on this?
Dave
In that case the float are contact
Just checked in a JSBSim.hxx and JSBSim.cxx to JSBSim CVS that makes crash
handling user-configurable. The default behavior is the current
subterranean flying behavior. If the user sets the property
/sim/pause-on-crash to true, then the sim will pause on crash, which is the
same behavior
We should probably come up
with some kind of standard way for the FDM to signal to the rest of
the simulator that it has detected a collision and stopped.
I agree it's time for crash detection and handling. I just added a basic
version to my OV-10 sim (can't have public users wallowing
Dave Culp wrote:
One decision to make is what the handler should do once a crash is
detected. I have it calling the reinit code in order to reset the
sim to the starting position (below), while others may prefer to
have the sim close after a crash, or perhaps display a crash-splash
screen
If you want to do push-mode handling with an FGCommand and make it
settable by the user, you can have the command call (or be) a Nasal
script that can be assigned by the user (e.g. globals.crashHandler =
myFunction). Or have it indirect through another FGCommand binding
found in the property
I mistakenly specified both --vor and --ndb (I meant to say --adf
instead of --ndb), and got a segfault on the startup, even
before the splash screen.
fgfs --prop:/environment/params/real-world-weather-fetch=true \
--prop:/environment/params/control-fdm-atmosphere=true \
This should now be fixed.
Cheers - Dave
___
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i haven't been able to use flightgear for the past couple of days as
it crashes in FGAIPlane::Update(double) (actually it doesn't quite
crash, the sim just freezes and i have to kill it from the command
prompt). this is the gdb backtrace:
0x080d49fe in FGAIPlane::Update(double) (this=0xd4dee98,
Martin Koller [EMAIL PROTECTED] wrote:
I just downloaded version 0.9.2 and compiled and installed everything on my
Linux Suse 8.0.
On the first start I get a Segmentation fault, and looking in gdb I see:
I attached a 'Build' script that I use for my daily build from CVS. Although
it is
As usual, I forgot the attachment
#!/bin/sh
#
# Please set ${FG_ROOT} appropriately. You will need a 'FlightGear/' directory
# set to ${FG_ROOT} and a 'src/' directory one level up.
#
FG_ROOT_SRC=${FG_ROOT}/../src
#
DO_LNDIR=true
#
NUMPROCS=`grep ^processor /proc/cpuinfo | wc -l`
if [ -z
Hi all,
I just downloaded version 0.9.2 and compiled and installed everything on my
Linux Suse 8.0.
On the first start I get a Segmentation fault, and looking in gdb I see:
Is it normal that the total variable is ZERO ?
Initializing scenery subsystem
Program received signal SIGSEGV,
i was flying the a4 trying to dodge buildings when i crashed into one
of them. the problem is i was some distance away from it as you can
see from the picture at http://caliban.lbl.gov/a4_crash.pnm (it's a
1600x1200 picture so it might be pretty large). so either the crash
code is wrong, or the
Alex Romosan writes:
i was flying the a4 trying to dodge buildings when i crashed into one
of them. the problem is i was some distance away from it as you can
see from the picture at http://caliban.lbl.gov/a4_crash.pnm (it's a
1600x1200 picture so it might be pretty large). so either the
On Thursday 18 July 2002 7:43 pm, David Megginson wrote:
Alex Romosan writes:
i was flying the a4 trying to dodge buildings when i crashed into one
of them. the problem is i was some distance away from it as you can
see from the picture at http://caliban.lbl.gov/a4_crash.pnm (it's a
Curtis L. Olson writes:
David Megginson writes:
Alex Romosan writes:
i was flying the a4 trying to dodge buildings when i
crashed into one
of them. the problem is i was some distance away from it
as you can
see from the picture at
http://caliban.lbl.gov/a4_crash.pnm (it's a
Norman Vine writes:
Hopefully once we get 'reset' working again developers will test 'reset'
before submitting their changes in the future so we don't repeat this
quagmire
It's a little more complicated than that. The original reset was a
simple kludge that worked fine for a simple
David Megginson writes:
Norman Vine writes:
Hopefully once we get 'reset' working again developers will test 'reset'
before submitting their changes in the future so we don't repeat this
quagmire
It's a little more complicated than that. The original reset was a
simple kludge that
David Megginson [EMAIL PROTECTED] said:
Curt has mentioned that there are ordering dependencies, especially
around rendering, that we have to be careful not to break. We should
be able to get those automatically, as long as we add the subsystems
to the vector in the right order.
The
Curtis L. Olson writes:
David, I'm looking for help on this one since it's seems to be very
much wrapped up in the property system and environment manager and
cloud layers.
This problem seems to be very complicated.
Agreed. I've managed to patch things up in my local copy so that it
David Megginson writes:
Curtis L. Olson writes:
David, I'm looking for help on this one since it's seems to be very
much wrapped up in the property system and environment manager and
cloud layers.
This problem seems to be very complicated.
Agreed.
Remember that reset has
always
Norman Vine [EMAIL PROTECTED] said:
Hopefully once we get 'reset' working again developers will test 'reset'
before submitting their changes in the future so we don't repeat this
quagmire
Maybe that should be part of a minimum test before something is commited to cvs?
Actually my most
Jim Wilson writes:
Curtis L. Olson [EMAIL PROTECTED] said:
Has anyone tried to debug the Reset menu crash?
Yes, right after the cloud layer changes went in it started. David knows
about it. Comment out the cloud layer config in preferences.xml and the
problem goes away (but you have
Curtis L. Olson writes:
Jim Wilson writes:
Curtis L. Olson [EMAIL PROTECTED] said:
Has anyone tried to debug the Reset menu crash?
Yes, right after the cloud layer changes went in it started. David knows
about it. Comment out the cloud layer config in preferences.xml and the
Jim Wilson writes:
Yes, right after the cloud layer changes went in it started. David
knows about it. Comment out the cloud layer config in
preferences.xml and the problem goes away (but you have no clouds).
It appears there's something that isn't getting cleaned up in the
simgear code.
Curtis L. Olson [EMAIL PROTECTED] said:
At the start of the program we save a copy of the property tree. As
part of restoring the initial state we copy back this saved property
tree to the current/master property tree. Because of callbacks
(functions tied to property reads and writes)
Curtis L. Olson [EMAIL PROTECTED] said:
Has anyone tried to debug the Reset menu crash?
Yes, right after the cloud layer changes went in it started. David knows
about it. Comment out the cloud layer config in preferences.xml and the
problem goes away (but you have no clouds). It appears
Curtis L. Olson writes:
Has anyone tried to debug the Reset menu crash?
Yep, but no joy.
This is a bug we shouldn't let sit around very long. The longer it
sits, the harder it will be to track down.
FWIW:
It is curious that 'goto airport' seems to still work
Norman
Curtis L. Olson wrote:
Has anyone tried to debug the Reset menu crash? I've been looking
at it for an hour and am just going in circles. Half the time I get a
segfault with no backtrace ...
I don't remember what a malloc segfault exactly
means, but I seem to recall that it probably means
Tony Peden writes:
OK, I've figured out what the problem is.
At intialization both the altitude and runway altitude are set:
Start common FDM init
...initializing position...
FGJSBsim::set_Longitude: -2.0444
FGJSBsim::set_Latitude: 0.572695
cur alt (ft) = 0
FGJSBsim::set_Altitude:
Question: Who's responsibility is it (or should it be) to set the
runway elevation inside of FGInterface?
JSBSIm does fine on its own by using a runway elevation (or scenery elevation,
or whatever) of zero - assuming sea level operations only, for now. JSBSim
defaults to sea level in
[EMAIL PROTECTED] writes:
Question: Who's responsibility is it (or should it be) to set the
runway elevation inside of FGInterface?
JSBSIm does fine on its own by using a runway elevation (or scenery
elevation, or whatever) of zero - assuming sea level operations
only, for now. JSBSim
I didn't mean to evoke a defensive response.
[That's just how I write, sometimes. I wasn't being defensive - though it
came across that way - just argumentative. :-)]
The question is, who should be updating the values inside of
FGInterface (which are really inside the JSBSim class since
We should also investigate why FlightGear is
reporting one elevation
initially and then amending it to something else
later ... there's
something not quite right there either. That
investigation isn't
going to happen though before 0.7.9.
This, it seems to me, is the root cause of the
Curtis L. Olson writes:
The question is, who should be updating the values inside of
FGInterface (which are really inside the JSBSim class since JSBSim
inherits from FGInterface.) This is what JSBSim is using for runway
elevation and is what is not getting updated when starting at KMYF.
Curtis L. Olson wrote:
JSBSim properly handles updating the runway/ground elevation most of
the time, but here is at least one situation where it doesn't. YASim
doesn't handle this at all (but Andy's the new kid so we can cut him
some slack.) :-)
Uh, stupid question: where do I stick
Andy Ross writes:
Curtis L. Olson wrote:
JSBSim properly handles updating the runway/ground elevation most of
the time, but here is at least one situation where it doesn't. YASim
doesn't handle this at all (but Andy's the new kid so we can cut him
some slack.) :-)
Uh, stupid
Curtis L. Olson wrote:
Andy Ross wrote:
Uh, stupid question: where do I stick the number? I can't imagine
this is difficult to fix.
Should be a breeze.
Essentially you are assuming that the runway elevation field in the
FGInterface structure is getting updated externally by
I think that does the trick, thank!
Curt.
Andy Ross writes:
Curtis L. Olson wrote:
Andy Ross wrote:
Uh, stupid question: where do I stick the number? I can't imagine
this is difficult to fix.
Should be a breeze.
Essentially you are assuming that the runway elevation
On Thu, 2002-02-14 at 09:09, Alex Perry wrote:
The current CVS hangs for me when ground started at KMYF, yet is fine at KSFO.
Immediate crash. It's a long way to commute, could we fix that sometime?
I've sent a fix off to Curt for this.
___
The current CVS hangs for me when ground started at KMYF, yet is fine at KSFO.
Immediate crash. It's a long way to commute, could we fix that sometime?
___
Flightgear-devel mailing list
[EMAIL PROTECTED]
Alex Perry writes:
The current CVS hangs for me when ground started at KMYF, yet is fine at KSFO.
Immediate crash. It's a long way to commute, could we fix that sometime?
Hmmm, I can verify this same problem here too. With fgfs
--airport-id=KMYF :
- Flightgear starts up.
- The JSBSim
So it appears that at least for KMYF, JSBSim and FlightGear are having
a very strong disagreement over the elevation of the ground, and
neither is willing to budge. Sounds like two typical flightgear
developers. :-)
Yep :-) This is _very_ similar to what I've been experiencing with 0.7.8
Ok, there is something really strange here, probably because things
were changed without a proper understanding of how everything worked
together. My mind is fryed at the moment looking at this stuff.
JSBSim seems to be doing the right thing *except* for at KMYF.
Whatever it was I said to
Curtis L. Olson wrote:
Ok, looking further, it appears that nothing, no place, no where is
setting the runway elevation any more ... it get's initialized at
startup, but then never is updated as the aircraft moves.
Ah, which explains why I've never seen this. I only ever bother
testing in
David Megginson writes:
Hmmm, If I start at KSAN and taxi to KMYF, JSBSim seems happy with
the ground elevation and everything jives with where FGFS thinks the
ground is. The problem seems to be somehow at startup/init time.
Very strange and confusing ... I don't see any
On Thu, 2002-02-14 at 09:09, Alex Perry wrote:
The current CVS hangs for me when ground started at KMYF, yet is fine at KSFO.
Immediate crash. It's a long way to commute, could we fix that sometime?
It looks to me like there are at least a couple of problems.
1) the altitude is initially set
Curtis L. Olson writes:
If you're using Emacs, try
M-x cvs-examine
and then enter the root directory for the base package when propted.
Use 'x' to clear any warning messages, etc., then see what's left.
Interesting tool. In Debian anyway, make sure you have the
On Wed, 2002-01-23 at 19:40, Jim Wilson wrote:
James,
I rebuilt again from CVS tonight (2nd time this week) and no problems. When I
do it I do a full rebuild including all the config and makefiles (even if I
think it might not be necessary).
This is a gcc2.95.2/glibc2.1 system for what
James,
I rebuilt again from CVS tonight (2nd time this week) and no problems. When I
do it I do a full rebuild including all the config and makefiles (even if I
think it might not be necessary).
This is a gcc2.95.2/glibc2.1 system for what thats worth. Ran default just as
you did and it loads
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