Re: [Flightgear-devel] aircraft search
On Saturday 17 July 2010 13:46, James Turner wrote: [snip] You will need an up-to-date SimGear (which includes the new simgear::Dir helper), and please let me know if you see any problems with aircraft -set loading; they're going to be apparent very quickly, since locating the -set.xml file happens really early in the startup process. Hello James, Certainly does seem quicker but aircraft are shown as whatever-set.xml. Would it be possible to remove the -set.xml from the listed output? Martin. -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] Control System Pics
Hi, A while back a few folks asked for some pics on the control loading system I was working on. Finally a little time to post a few pics see http://www.flickr.com/photos/flyr15/ Currently working on the PID and control algorithms and some code in FG to compute neutral elevator/stick position. Once that is working up to spec will post some movies of the system in action. also plan to replace the air compressor with a quiet ( ~35dB ) Jun-aire unit. The CFM is quite modest so should be able to get by with a fairly small unit; something on the order of a 3-4 gallon supply tank @ 230psi. The control system itself runs at 15psi for the pitch and 30psi for the roll channel. The ITVs have a range up to 130psi and are programmable and scalable. Interface is a USB to d-to-a converter (0-5Vdc) to set the actuator pressures. No numbers on duty cycle for the compressor just yet, but at 35dB the noise should be tolerable when it fires up ( can always move it to the next room and add an intermediate supply tank ;-) )-- guessing around a 25 minute duty cycle under load. Regards John W -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] weather conditions and winds aloft not working correctly..
Ok, quick test with a new pull and it seems like heading and speeds are working for the layers now. The temperatures don't seem to be taking though, same setup as previous and I was below zero celcius before reaching 9000 feet and already nearly 9 below celcius at 12000 feet. Not sure about other settings, dewpoint, turbulence, etc, didn't play with those yet. I did notice altimeter wasn't coinciding with the input valuesthough to be honest I'm not sure I fully understand how the altimeter values are supposed work over altitude, temperature, etc changes...in flightgear or real life. Hmm - the temperature thing is a tricky one. There were some updates to the temperature/density calculations some time ago, so setting temperature at altitude don't give the expected result anymore. I'll think about it, but it will take some time to come up with a reasonable solution. For the time being, entering temperature into the dialog box is broken. The only way to set a temperature is by setting /environment/temperature-sea- level-degc which calculates the temperature at altitude based on ICAO standard atmosphere. Torsten -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] weather conditions and winds aloft not working correctly..
For the time being, entering temperature into the dialog box is broken. The only way to set a temperature is by setting /environment/temperature-sea- level-degc which calculates the temperature at altitude based on ICAO standard atmosphere. That's a little disappointing. Hopefully a better way to do things can be found as from what I can see the calculated temperatures are nowhere close to actual aloft data. Anyway, thanks a bunch for working on this, weather is a very important part of aviation and flight planning so anything that can be fixed or improved is always good. On a side note...is there a way to retrieve a list of airports within a certain distance of a position from nasal? cheers! -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] Cloud Rendering and threading
A paper from Intel that may be useful for those interested about clouds. It's also a good reference about how threading may help in this topic... Dynamic Volumetric Cloud Rendering for Games on Multi-Core Platforms http://a676.g.akamaitech.net/f/676/773/1d/images.delivery.net/cm50content/intel/software/e-alert2/dynamic_vol_cloud_010710_r2. Regards, Pablo J. Rogina -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Cloud Rendering and threading
Looks like it is based on the work of Mark Harris which was used for the initial set of 3D cloud rendering in FG. (See his Phd thesis for more details.) Multi-core CPUs are becoming the norm, might be worth a second look. John On Sun, 2010-07-18 at 22:47 -0300, Pablo Rogina wrote: A paper from Intel that may be useful for those interested about clouds. It's also a good reference about how threading may help in this topic... Dynamic Volumetric Cloud Rendering for Games on Multi-Core Platforms http://a676.g.akamaitech.net/f/676/773/1d/images.delivery.net/cm50content/intel/software/e-alert2/dynamic_vol_cloud_010710_r2. Regards, Pablo J. Rogina -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
