Re: [Flightgear-devel] Proposal: Move airplanes to an SVN repository
Hi, Currently I do not even have a working fg on my machine, but I continue to peek at the flightgear-devel list occasionally. Today I saw this discussion of moving the aircraft directories to individual SVN repos instead of git. My experience with both svn and git is both minimal and old, and I may be misinterpreting what the problem is that needs solving. However, if you're going to consider creating separate repos in SVN for each aircraft, when everything else has been converted to git now, perhaps you should consider instead using fossil, which is very git-like in some ways (clone,push,pull) but also like a traditional centralized VCS in some other ways. In particular, fossil's repository is a single, sqlite file. Although cloning is the normal method for copying it, you can copy that file just fine (as long as no one else is updating it at that instant) and it works fine. Afterwards, updating a local repo, using pull, involves an rsync-like protocol so it's fast. Fossil repositories can be converted to/from git repositories with a one-liner. (However I don't know how you would isolate, say, just the c172p directory from all the rest of the stuff in git.) If anyone thinks this might be relevant, just take a look at https://www.fossil-scm.org/index.html/doc/trunk/www/index.wiki This is a living instance of a fossil repository, BTW: the fossil binary, statically-linked except for libz, is ~900KB. Yet it includes a simple wiki, a *very* nice issue-tracking system, and a tiny web-server(!). Normally a developer interacts with fossil from the commandline, but the built-in web-server makes *exploring* what is in the repository, as well as creating bug reports and some documentation, a joy. Just for fun, and understanding that this would have to be done properly by someone with access to the full git repo with all its history, I yum-installed FlightGear-data on my Fedora system, and then did cp -r /usr/share/FlightGear/Aircraft /tmp and created Fossil repos for each of the included directories: shrdlu tmp $ ls Aircraft 777-200 bo105 dhc2 Generic j3cub ufo A6M2 c172p Dragonfly Instruments SenecaII UIUC b1900d CitationX f-14b Instruments-3d sopwithCamel ZLT-NT shrdlu tmp $ mkdir Repos shrdlu tmp $ cd Aircraft shrdlu Aircraft $ for i in * do echo $i: fossil new ../Repos/$i.fossil cd $i fossil open ../../Repos/$i.fossil fossil add . fossil commit -m Initial checkin fossil close cd .. done #Five times it paused to ask a question like this: # ./Models/Liveries/KLM.xml contains CR/NL line endings; commit anyhow (yes/no/all)?all #Otherwise it would have taken perhaps 30 seconds for all 18 repositories, #on my 5-year-old machine. shrdlu Aircraft $ cd .. shrdlu tmp $ du -sh Aircraft 12M Aircraft/777-200 4.5MAircraft/A6M2 6.0MAircraft/b1900d 3.0MAircraft/bo105 17M Aircraft/c172p 5.8MAircraft/CitationX 5.9MAircraft/dhc2 1.6MAircraft/Dragonfly 23M Aircraft/f-14b 816KAircraft/Generic 14M Aircraft/Instruments 11M Aircraft/Instruments-3d 1.1MAircraft/j3cub 6.6MAircraft/SenecaII 22M Aircraft/sopwithCamel 216KAircraft/ufo 8.2MAircraft/UIUC 4.1MAircraft/ZLT-NT shrdlu tmp $ ls -lh Repos total 68M -rw-r--r-- 1 dns dns 7.5M Jun 25 13:43 777-200.fossil -rw-r--r-- 1 dns dns 1.6M Jun 25 13:43 A6M2.fossil -rw-r--r-- 1 dns dns 3.3M Jun 25 13:43 b1900d.fossil -rw-r--r-- 1 dns dns 1.4M Jun 25 13:43 bo105.fossil -rw-r--r-- 1 dns dns 11M Jun 25 13:43 c172p.fossil -rw-r--r-- 1 dns dns 3.4M Jun 25 13:43 CitationX.fossil -rw-r--r-- 1 dns dns 3.2M Jun 25 13:43 dhc2.fossil -rw-r--r-- 1 dns dns 836K Jun 25 13:43 Dragonfly.fossil -rw-r--r-- 1 dns dns 11M Jun 25 13:44 f-14b.fossil -rw-r--r-- 1 dns dns 464K Jun 25 13:44 Generic.fossil -rw-r--r-- 1 dns dns 3.9M Jun 25 13:44 Instruments-3d.fossil -rw-r--r-- 1 dns dns 5.4M Jun 25 13:44 Instruments.fossil -rw-r--r-- 1 dns dns 457K Jun 25 13:44 j3cub.fossil -rw-r--r-- 1 dns dns 2.4M Jun 25 13:44 SenecaII.fossil -rw-r--r-- 1 dns dns 8.7M Jun 25 13:44 sopwithCamel.fossil -rw-r--r-- 1 dns dns 96K Jun 25 13:44 ufo.fossil -rw-r--r-- 1 dns dns 2.8M Jun 25 13:44 UIUC.fossil -rw-r--r-- 1 dns dns 1.4M Jun 25 13:44 ZLT-NT.fossil shrdlu tmp $ file Repos/777-200.fossil Repos/777-200.fossil: SQLite 3.x database shrdlu tmp $ du -sh Aircraft Repos 144MAircraft 68M Repos shrdlu tmp $ Of course this is equivalent to just the tip of the git repository. Fossil uses deltas for versions internally, so it ought to be competitive on the full history, but only an experiment will prove that. Perhaps this is of some interest. If not, just ignore me. david. -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of
Re: [Flightgear-devel] High Priority: fixing the Great Lakes...
On Sunday 2010-03-28 David Megginson wrote: Now, quite a few years later, the Great Lakes are still broken in our default scenery, and as a result, FlightGear looks ridiculous to any new user who comes and tries flying in near cities such as Toronto, Rochester, Buffalo, Cleveland, Detroit, Chicago, or Milwaukee. Sometimes pictures really *are* worth a thousand words. I think this is one of those times. I've put up on the Web (temporarily: they won't be there forever) three screen snaps: Please go to http://www.vex.net/~slocombe/fgfs-pics-of-CYTZ/ for pictures illustrating the problems of CYTZ (Toronto/City Centre), which is on an island in Lake Ontario just offshore from Toronto's downtown area. 1. cytz-from-08-apprch.png : CYTZ from the approach viewpoint of Runway 08 (08/26 is the principal runway of this extremely busy airport: Bombardier Dash8-Q400's take off or land about every 20 minutes, and in between that traffic Cessna 150's and 172's practise circuits or transit to/from Toronto's practice area to the East. I'm one of the student pilots these days. The fact that, in fgfs, the water is 240 feet below its real-world level is only a small part of the problem (in fact if that were the only problem one could just pretend one is practising landings on aircraft carriers). The terrain data, intersected by the water at its current level, makes the shoreline wildly wrong... 2. cytz-overhead-at-40Kft.png : This is taken with the UFO tool at 40,000 ft., looking straight down. 3. google-image-cytz.png : a snap of what Google has for a satellite shot, to compare with the previous shot. I'm not convinced that the terrain data that fgfs uses is sufficiently detailed to capture even the approximate shape of the Toronto Islands (what CYTZ is on the Western end of), let alone the Leslie Spit and docklands to the East. So I'm not sure how different this is going to look if the water-level were correct. But surely it would make a difference, and there are 700 miles of shoreline for Lake Ontario, and another 800 miles for Lake Erie: all of this would be affected by a fix. I presume the shoreline in the St. Lawrence River near Montreal must be seriously wrong too. BTW, Just For Kicks, I can fly *under* CYTZ. It doesn't seem to do me damage, and fgfs doesn't even crash! :-) Thanks everyone for the great achievement that fgfs is. It was fgfs that got me sufficiently enthused about flying to decide to get my PPL. David Slocombe Toronto Canada. -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Licensing and disclaimers for aircraft models
Why agonize over this, where obviously no one on this list is expert. Instead, why not write to h...@softwarefreedom.org or connect to #sflc on irc.freenode.net and ask the lawyers who offer the needed advice for free. See: http://www.softwarefreedom.org/services/ (Software Freedom Law Center) They are there to help us. the chairman of the SFLC is Prof. Eben Moglen, who has been the legal expert behind the GPL since the beginning. Jon, your correspondence with Boeing seems the right thing to send along. cheers, dns. -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] New c172p panel: getting ki227 needle to work
The new c172p aircraft is beautiful (thank you, Heiko!), but the panel is not quite finished. In particular, the needle on the ADF gauge (KI-227) does not function, and the card cannot be rotated. NDBs are still important in my part of the world (Canada) so I needed to get that needle to move. (I can live without the card rotation.) I finally found the XML file controlling this: Aircraft/c172p/Instruments/kr87-adf/ki227-00.xml . This file has section: animation typerotate/type object-nameKI227.needle/object-name property/instrumentation/kr-87/outputs/needle-deg/property axis x-1/x y0/y z0/z /axis /animation But, using the property browser dialog, I found that needle-deg has no value, although the frequencies are there and the KR-87 seems to be working fine otherwise. The property section for the ADF of the previous c172p is still there, and -- surprise! -- the property Instrumentation/adf/indicated-bearing-deg has the needed value. So replacing property/instrumentation/kr-87/outputs/needle-deg/property with property/instrumentation/adf/indicated-bearing-deg/property produces a working (relative bearing type) ADF gauge. I assume Heiko has further plans for the new c172p panel. However, this patch could be used if there is not enough time to carry them out before the impending new release... cheers, david. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
