Re: [Flightgear-devel] Scenery
Matthew Law wrote: That's pretty good scenery! Is that straight from TerraGear or ripped from the MS Scenery add-ons? As I understand it it's a commercial CD containing satellite images of the UK, but processed with TerraGear to match FlightGear's own scenery format. Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Fix for compilation error in panel.cxx: `truncf' undeclared
Eric L Hathaway wrote: To compile FlightGear from a clean CVS checkout (with plib and SimGear are already installed), I run a little script that issues the following commands: export CFLAGS=-Wall -O3 -fomit-frame-pointer -ffast-math \ -funroll-loops -march=athlon export CXXFLAGS=-Wall -O3 -fomit-frame-pointer -ffast-math \ -funroll-loops -march=athlon export INSTALL=/usr/bin/install -cCp ./autogen.sh ./configure --with-threads make Just a word of caution, the -ffast-math option may result in inaccurate results and especially for the scenery it can result it white lines between textured tiles. I've used something similar for IRIX and decided mathematics is a key point for flight simulators and should not be optimized (except for some small predetermined areas). Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Fix for compilation error in panel.cxx: `truncf' undeclared
Hi, [autoconf problems with truncf] If I look into config.log, I find the lines configure:9991: checking for truncf configure:10041: gcc -o conftest -O2 -march=athlon -msse -mfpmath=sse -I/home/flightgear/sw/include -I/usr/X1 1R6/include -L/home/flightgear/sw/lib -L/usr/X11R6/lib conftest.c -ldl -lm -lglut -lGLU -lGL -lXmu -lXt -lS M -lICE -lXi -lXext -lX11 -ldl -lm 5 configure:10044: $? = 0 configure:10047: test -s conftest configure:10050: $? = 0 configure:10061: result: yes for the truncf check on my machine. What I see here is gcc not g++. I would guess that this will make the difference. So moving the test for truncf in between this AC_LANG_PUSH(C++) ... AC_LANG_POP lines might help. I think that most of these functions which are tested using the C compiler will actually be used in C++ code. So moving more of these functions out of the line AC_CHECK_FUNCS( many functions ... truncf ) might be a good idea. So, at final, does the attached patch help? Of course autogen.sh and configure have to be executed past patching. Greetings Mathias -- Mathias Fröhlich, email: [EMAIL PROTECTED] --- configure.ac.orig 2004-01-29 10:07:23.496868234 +0100 +++ configure.ac 2004-01-29 10:07:52.072834221 +0100 @@ -427,6 +427,8 @@ fi AM_CONDITIONAL(ENABLE_JPEG_SERVER, test x$ac_cv_header_simgear_screen_jpgfactory_hxx = xyes) +AC_CHECK_FUNCS( [ \ + truncf ] ) AC_LANG_POP dnl Check for system installed zlib @@ -465,7 +467,7 @@ AC_CHECK_FUNCS( [ \ ftime gettimeofday timegm memcpy bcopy mktime strstr rand mkfifo \ random drand48 setitimer getitimer signal GetLocalTime rint getrusage \ - truncf ] ) + ] ) LIBS=$old_LIBS AM_CONFIG_HEADER(src/Include/config.h) ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Scenery
As I understand it it's a commercial CD containing satellite images of the UK, but processed with TerraGear to match FlightGear's own scenery format. Maybe the simscreens postings should credit the source and acknowledge the copyright? Mally --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.572 / Virus Database: 362 - Release Date: 27/01/04 ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] New autopilot
On Thu, 29 Jan 2004 01:45:18 -, Jim Wilson [EMAIL PROTECTED] wrote: But to go back to the C172 example, does anyone actually understand how this issue is handled in a cessna autopilot or any of the others that might be installed in a 172? Will it stall the aircraft? Or...hmmm...trying to remember... does the 172 even have an AP for the pitch axis? A quick browse to the Cessna web site reveals that the C172 can be delivered with the KAP 140 Two Axis w/Altitude preselect Autopilot from Bendix/King. I just downloaded the Pilot's Guide from this link: http://www.n612sp.com/KAP%20140%20AUTOPILOT.pdf After browsing through this document, it is my understanding that the autopilot will stall the aircraft because it has no input telling it speed or angle-of-attack. I think Pilot's Guides could be waluable references when we begin to implement real world autopilots. -- Roy Vegard Ovesen ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] New autopilot
On Thu, 29 Jan 2004 11:40:38 +0100, Roy Vegard Ovesen [EMAIL PROTECTED] wrote: I just downloaded the Pilot's Guide from this link: http://www.n612sp.com/KAP%20140%20AUTOPILOT.pdf It seems that this pdf file does not contain the entire document. For the complete document use this link: http://bkweb01.ais.honeywell.com/static/bk_club/pilotguides/techpubs/006-18034-_0.pdf -- Roy Vegard Ovesen ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
[Flightgear-devel] Airport lighting
Hi, Is it true that apron/platform/hardstand lights should be red instead of blue? If so, wouldn't that be a good indication at scenery generation? Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
[Flightgear-devel] Re: Scenery
That's pretty good scenery! Is that straight from TerraGear or ripped from the MS Scenery add-ons? Some info here: http://baron.flightgear.org/pipermail/terragear-devel/2004-January/000859.html http://baron.flightgear.org/pipermail/flightgear-users/2004-January/006927.html Had just slightly improved this method after advice from Curt on how to stop the tile edges cutting into inclines. But have had loss of fat on my hardrive (linked to powercut I think). If anyone knows of a good file recovery solution that will work with reiser fs would like to recover contents of drive. Off topic I know, but it is all my flight / terragear stuff ! as well as the rest. Mat ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
RE: [Flightgear-devel] Airport lighting
Hi Eric Erik Hofman writes Hi, Is it true that apron/platform/hardstand lights should be red instead of blue? If we are talking about area lighting I would think yellow to light orange If so, wouldn't that be a good indication at scenery generation? Erik Cheers Innis _ Hot chart ringtones and polyphonics. Go to http://ninemsn.com.au/mobilemania/default.asp ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
RE: [Flightgear-devel] [OT] Ventura publisher (really old)
These sites http://filext.com/ http://www.icdatamaster.com/ may help you identify what the files are, but it appears that they give no hints as to the internal format. You might get that once you know what it is though. They are also useful sites to see whether your extension of choice is already in use. Richard -Original Message- From: Curtis L. Olson [mailto:[EMAIL PROTECTED] snip I'm seeing extensions like .WP and .WS which is probably text in word perfect and word star formats. I'm also seeing extentions like .CAP .CHP .CIF .VGR .CHP .STY .GEM and .PLT snip ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Airport lighting
Innis Cunningham wrote: Hi Eric Erik Hofman writes Hi, Is it true that apron/platform/hardstand lights should be red instead of blue? If we are talking about area lighting I would think yellow to light orange. I meant the edge lighting (just like the taxiway edge lights are blue). Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Scenery
Mally wrote: As I understand it it's a commercial CD containing satellite images of the UK, but processed with TerraGear to match FlightGear's own scenery format. Maybe the simscreens postings should credit the source and acknowledge the copyright? At least mentioning that it uses textures based on a commercial product would have been nice. Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
mat churchill wrote: Had just slightly improved this method after advice from Curt on how to stop the tile edges cutting into inclines. But have had loss of fat on my hardrive (linked to powercut I think). If anyone knows of a good file recovery solution that will work with reiser fs would like to recover contents of drive. Off topic I know, but it is all my flight / terragear stuff ! as well as the rest. A good journaling file system like RiserFS would never lose (actually 99.995% of the time, and even then just very small portions of the) data. If it didn't recover after startup then there might me a larger problem with your hardware. Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
[Flightgear-devel] Re: Scenery
* Erik Hofman -- Thursday 29 January 2004 13:57: A good journaling file system like RiserFS would never lose (actually 99.995% of the time, and even then just very small portions of the) data. Any reason why you don't recommend XFS instead? :-] m. ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
I'm interested in how you did this as I thought of extracting the files from the MS FS VFR scenery discs I have and somehow stitching it together for use in FGFS..? In theory you should be able to get at the data as Reiser should still be able to give you everything since the last time it wrote the journal file. Maybe you have a disk controller issue or the drive is caput? All the best, Matt. On 11:14 Thu 29 Jan, mat churchill wrote: Had just slightly improved this method after advice from Curt on how to stop the tile edges cutting into inclines. But have had loss of fat on my hardrive (linked to powercut I think). If anyone knows of a good file recovery solution that will work with reiser fs would like to recover contents of drive. Off topic I know, but it is all my flight / terragear stuff ! as well as the rest. Mat ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] [OT] Ventura publisher (really old)
Hi Curt, A quick glance in the bookcase and I see the manual is there. That's a good sign since the manuals usually get trashed before the disks. AFAIK the best bet is going to be trying to get a postscript file out of an installed copy of ventura for each document. Then at least you can read it into something else. Let me know if it is worth looking. We don't need it so I'll just send what I have. BTW the disks are probably 5 1/4. Best, Jim ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
[Flightgear-devel] BUG: Fog disappears when looking towards sun
There seems to be a problem with the fogging on my machine (Linux, NVidia card). When the sun is in, or just out of, the field of view, the fog disappears and visibility is perfect. This is most easily seen by starting at dawn or dusk, and with a low visibility (eg 5000), climb to about 1000ft agl and look or fly around, but happens with the default visibility as well, and I have seen it briefly at noon, but can't reliably reproduce it at noon. Cheers - Dave ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] BUG: Fog disappears when looking towards sun
David Luff wrote: There seems to be a problem with the fogging on my machine (Linux, NVidia card). When the sun is in, or just out of, the field of view, the fog disappears and visibility is perfect. This is most easily seen by starting at dawn or dusk, and with a low visibility (eg 5000), climb to about 1000ft agl and look or fly around, but happens with the default visibility as well, and I have seen it briefly at noon, but can't reliably reproduce it at noon. Hi Erik. :-) I'm seeing this too after a recent cvs update. Must have something to do with the sun pre/post draw call back functions. Thanks, Curt. -- Curtis Olson HumanFIRST Program FlightGear Project Twin Citiescurt 'at' me.umn.edu curt 'at' flightgear.org Minnesota http://www.flightgear.org/~curt http://www.flightgear.org ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Airport lighting
From: Erik Hofman [EMAIL PROTECTED] Innis Cunningham wrote: Erik Hofman writes Is it true that apron/platform/hardstand lights should be red instead of blue? If we are talking about area lighting I would think yellow to light orange. I meant the edge lighting (just like the taxiway edge lights are blue). In the U.S., the rule is as follows. It is either similar or identical to the ICAO rules because other airports have lighting looking similar. Edge lighting that is at ground level is blue, both for taxiways and aprons. However, unusual truncation of those areas, as often occurs for construction, is in red and is often brighter because they normally use the same light bulbs and a different filter (and lightbulbs have more red than blue). Similarly, permanent obstructions such as walls, that are risks to be hit with wings rather than the edge of the area for use by the wheels, will have red obstruction lights on them. Blue edge lights are then omitted. Finally, permanenent lighting is often recessed into the tarmac. For lights stuck on obstructions/construction, this is not done. When a long way away, and standing at ground level, the recessed lights can be invisible so you can only see the ramp edge indication if it coincides with something that needs a red non-recessed light. ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] BUG: Fog disappears when looking towards sun
Curtis L. Olson wrote: David Luff wrote: There seems to be a problem with the fogging on my machine (Linux, NVidia card). When the sun is in, or just out of, the field of view, the fog disappears and visibility is perfect. This is most easily seen by starting at dawn or dusk, and with a low visibility (eg 5000), climb to about 1000ft agl and look or fly around, but happens with the default visibility as well, and I have seen it briefly at noon, but can't reliably reproduce it at noon. Hi Erik. :-) I'm seeing this too after a recent cvs update. Must have something to do with the sun pre/post draw call back functions. Erik commented out the NVidia hack in the sun post draw some days ago. It seems there is still the bug in the NVidia driver where the glPush/PopAttrib doesn't restore the fog density. -Fred ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] [OT] Ventura publisher (really old)
Curtis L. Olson [EMAIL PROTECTED] wrote: I have some really old, as in ancient ventura publishing files that I'd be interesting at cracking open and at least extracting out the important stuff in order to convert to some more modern tool. I have an old Ventura Publisher 3.0 for Windows - it this might help, Martin. -- Unix _IS_ user friendly - it's just selective about who its friends are ! -- ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] BUG: Fog disappears when looking towards sun
Frederic BOUVIER wrote: Curtis L. Olson wrote: David Luff wrote: There seems to be a problem with the fogging on my machine (Linux, NVidia card). When the sun is in, or just out of, the field of view, the fog disappears and visibility is perfect. This is most easily seen by starting at dawn or dusk, and with a low visibility (eg 5000), climb to about 1000ft agl and look or fly around, but happens with the default visibility as well, and I have seen it briefly at noon, but can't reliably reproduce it at noon. Hi Erik. :-) I'm seeing this too after a recent cvs update. Must have something to do with the sun pre/post draw call back functions. Erik commented out the NVidia hack in the sun post draw some days ago. It seems there is still the bug in the NVidia driver where the glPush/PopAttrib doesn't restore the fog density. Okay, I'll restore that work around. Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Airport lighting
Alex Perry wrote: In the U.S., the rule is as follows. It is either similar or identical to the ICAO rules because other airports have lighting looking similar. Edge lighting that is at ground level is blue, both for taxiways and aprons. However, unusual truncation of those areas, as often occurs for construction, is in red and is often brighter because they normally use the same light bulbs and a different filter (and lightbulbs have more red than blue). Similarly, permanent obstructions such as walls, that are risks to be hit with wings rather than the edge of the area for use by the wheels, will have red obstruction lights on them. Blue edge lights are then omitted. Finally, permanenent lighting is often recessed into the tarmac. For lights stuck on obstructions/construction, this is not done. When a long way away, and standing at ground level, the recessed lights can be invisible so you can only see the ramp edge indication if it coincides with something that needs a red non-recessed light. Ah, I see. I read somewhere that aprons would use red edge lights, but searching further didn't provide enough evidence that that was right. Thanks for the explanation. I'll use blue apron lights for modified airports. Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Scenery
On Thu, 2004-01-29 at 08:44, Erik Hofman wrote: Matthew Law wrote: That's pretty good scenery! Is that straight from TerraGear or ripped from the MS Scenery add-ons? As I understand it it's a commercial CD containing satellite images of the UK, but processed with TerraGear to match FlightGear's own scenery format. I forget the name of the CD, but I've seen these in a games shop recently. The do the entire UK as several sets, and also the major airports in high detail. I didn't know if they'd work with fgfs, I might invest in a copy now. I believe it was something to do with the millenium mapping project (some of the photographing flights were flown from my home airport - a couple minutes away from my parents house). Chris ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
mat churchill wrote: That's pretty good scenery! Is that straight from TerraGear or ripped from the MS Scenery add-ons? Some info here: http://baron.flightgear.org/pipermail/terragear-devel/2004-January/000859.html http://baron.flightgear.org/pipermail/flightgear-users/2004-January/006927.html Does anyone know where one can obtain images of this quality for the southwestern U.S.? Not necessarily free but reasonably cheap... -- Russ Conway's Law: The structure of a system tends to mirror the structure of the group producing it. -- Mel Conway Datamation (1968) ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
Russell Suter wrote: mat churchill wrote: That's pretty good scenery! Is that straight from TerraGear or ripped from the MS Scenery add-ons? Some info here: http://baron.flightgear.org/pipermail/terragear-devel/2004-January/000859.h tml http://baron.flightgear.org/pipermail/flightgear-users/2004-January/006927. html Does anyone know where one can obtain images of this quality for the southwestern U.S.? Not necessarily free but reasonably cheap... I once been a Terraserver subscriber. I was allowed to download everything i want at full resolution for a short period of time. I have now the bay area at 1m resolution in color. You are not allowed to redistribute images but derived work is yours. -Fred ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
I once been a Terraserver subscriber. I was allowed to download everything i want at full resolution for a short period of time. I have now the bay area at 1m resolution in color. You are not allowed to redistribute images but derived work is yours. -Fred ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.572 / Virus Database: 362 - Release Date: 27/01/04 ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
Fred I once been a Terraserver subscriber. I was allowed to download everything i want at full resolution for a short period of time. I have now the bay area at 1m resolution in color. You are not allowed to redistribute images but derived work is yours. Derived work in a GIS context would usually refer to taking vector road lines off the images or something similar. I very much doubt if you could pass photographic scenery off as anything other than redistributing the images themselves. I'd be interested to know what the actual license agreement was - there's very little about this on the terraserver web site. Mally --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.572 / Virus Database: 362 - Release Date: 27/01/04 ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
Frederic Bouvier wrote: Russell Suter wrote: mat churchill wrote: That's pretty good scenery! Is that straight from TerraGear or ripped from the MS Scenery add-ons? Some info here: http://baron.flightgear.org/pipermail/terragear-devel/2004-January/000859.h tml http://baron.flightgear.org/pipermail/flightgear-users/2004-January/006927. html Does anyone know where one can obtain images of this quality for the southwestern U.S.? Not necessarily free but reasonably cheap... I once been a Terraserver subscriber. I was allowed to download everything i want at full resolution for a short period of time. I have now the bay area at 1m resolution in color. You are not allowed to redistribute images but derived work is yours. I'm not planning on redistributing the work. The work would be for a client of mine who is trying to upgrade their simulator's visual database... Thanks, I'll look at that... -- Russ Conway's Law: The structure of a system tends to mirror the structure of the group producing it. -- Mel Conway Datamation (1968) ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
Russ I'm not planning on redistributing the work. The work would be for a client of mine who is trying to upgrade their simulator's visual database... Are you sure that doesn't count as redistributing? Mally --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.572 / Virus Database: 362 - Release Date: 27/01/04 ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
The ones I have are from www.visualflight.co.uk and are about 20GBP per region. I bought the regions aroung my airfield to help with VFR practice in MSFS but I'd like to see them in FGFS much more :-) An extension script to rip these into FG for people who have purchased the images would be useful... I believe they are taken from an aircraft at about 5000ft so the detail is much better than sat images. I don't know of anything in the US done in a similar way though. All the best, Matt. On 13:15 Thu 29 Jan, Russell Suter wrote: Does anyone know where one can obtain images of this quality for the southwestern U.S.? Not necessarily free but reasonably cheap... ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
On 1/29/04 at 10:05 PM Frederic Bouvier wrote: I once been a Terraserver subscriber. I was allowed to download everything i want at full resolution for a short period of time. I have now the bay area at 1m resolution in color. You are not allowed to redistribute images but derived work is yours. Last time I looked at the terraserver-usa site (different from terraserver.com) they had free USGS color images of the Seattle area at 0.5m (I think) resolution, and stated that further US urban areas were to be added. I would be very surprised if you really could freely redistribute derived work from any non-USGS commercial images unless the original images were clearly non-recoverable from said work, and photographic scenery by its nature would tend to preclude that. I would welcome being proved wrong though :-) Cheers - Dave ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
Mally wrote: Russ I'm not planning on redistributing the work. The work would be for a client of mine who is trying to upgrade their simulator's visual database... Are you sure that doesn't count as redistributing? Not if they buy the images and I simply provide the labor... -- Russ Conway's Law: The structure of a system tends to mirror the structure of the group producing it. -- Mel Conway Datamation (1968) ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Re: Scenery
On 1/29/04 at 10:08 PM Matthew Law wrote: The ones I have are from www.visualflight.co.uk and are about 20GBP per region. I bought the regions aroung my airfield to help with VFR practice in MSFS but I'd like to see them in FGFS much more :-) An extension script to rip these into FG for people who have purchased the images would be useful... If you look at the TerraGear list archives over the last few months there's a number of discussions on how to add small areas of photos to scenery. Larger areas would require support within FlightGear for scenery texture paging. It would be nice to know whether visualflight regard buying the MSFS scenery and converting it for personal FlightGear use as fair use or not. I'd be somewhat reluctant to write a specific conversion script otherwise. I believe they are taken from an aircraft at about 5000ft so the detail is much better than sat images. I don't know of anything in the US done in a similar way though. The whole of Massechucetts is available - Google massechucetts (sp?) orthophotography or similar and you'll find it. Free, but I'm not sure if GPL-compatable - non-commercial use only might be mentioned, but I can't remember clearly. Cheers - Dave ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] New autopilot
Jim Wilson wrote: But to go back to the C172 example, does anyone actually understand how this issue is handled in a cessna autopilot or any of the others that might be installed in a 172? Will it stall the aircraft? Or...hmmm...trying to remember... does the 172 even have an AP for the pitch axis? Hello, I can't give an exact matching case, but here is some info on a S-TEC System Twenty/System Thirty autopilot in a Piper Warrior II, a plane in the C172 class. The Twenty is a 1-axis AP, controlling the ailerons. Feedback to the controller is from the turn coordinator (with the AP built into the same case). There are 4 operating modes. One is a stabilizer, with a panel knob to control the pitch. With the knob centered, you have a wing leveler. Turning the knob left or right gives a controlled left or right bank, up to 90% of a standard rate turn. Mode 2 is heading hold, where the input is from the heading bug of the DG. It adjusts the bank to keep the bug centered. Modes 3 and 4 get input from the needle on the CDI, tracking to/from a VOR or following a localizer on an approach. Mode 3 is lower gain for a smoother ride when the VOR signal is a bit erratic. Mode 4 holds more actively as you would want on an approach. The model Thirty adds pitch control in the form of altitude hold. It uses an absolute pressure transducer for altitude sensing, and an accelerometer is mentioned but not discussed. You first stabilize at the desired altitude, and switch the pitch control on, which then maintains altitude. If the elevator servo runs out of capability, two lights signal the pilot to adjust the pitch trim up or down to get back into control range. No attempt is made to help on climb or descent, that would likely put it out of price range for these smaller single engine planes. -- Bill Earnest [EMAIL PROTECTED] Linux Powered Allentown, PA, USA Computers, like air conditioners, work poorly with Windows open. ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Airport lighting
Alex Perry wrote: Finally, permanenent lighting is often recessed into the tarmac. For lights stuck on obstructions/construction, this is not done. When a long way away, and standing at ground level, the recessed lights can be invisible so you can only see the ramp edge indication if it coincides with something that needs a red non-recessed light. Personally, I have not seen lighting recessed into the tarmac, though I realize that runway centreline lighting must be done that way. All the best, David (Back from a 4.1 hour flight from Boston to Ottawa with a brutal headwind and borderline severe turbulence most of the way.) ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] New autopilot
William Earnest wrote: I can't give an exact matching case, but here is some info on a S-TEC System Twenty/System Thirty autopilot in a Piper Warrior II, a plane in the C172 class. The STEC is currently the AP of choice for any light aircraft, whether shipped as a factory option or not. Lots of people retrofit older planes with them. All the best, David ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
