[Flightgear-devel] Re: CVS: data/Nasal gui.nas,1.35,1.36
* Melchior Franz -- Thursday 25 May 2006 20:31:
Log Message:
the harrier triggers a Nasal bug: continue doesn't execute the for
loop's reinitialization part. We have to do that manually for now, or
get caught in an endless loop, until fgfs has mercy and segfaults.
- if(cap == nil or cap 1) { continue; }
+ if(cap == nil or cap 1) { i+=1; continue; }
For the record: I couldn't confirm this claim in a minimal test. There
continue worked as advertized. Don't know yet what's wrong here in the
Fuel Payload dialog. It definitely used to work, and definitely crashed
with the harrier. This is a temporary workaround. I'll investigate ...
(It's a known bug, though, that continue and break don't work in
foreach and forindex. :-)
m.
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Re: [Flightgear-devel] small VMAP1 demo
Martin Spott wrote: Arnt Karlsen wrote: On Thu, 25 May 2006 09:27:01 + (UTC), Martin wrote in message I think I'll start with a 2x2 degree shapefile set for KOSH, so if someone would build a scenery tile from that ..url and approx eta? It depends - I suggest to do it yourself if you're in hurry. Otherwise please wait until you read the respective announcement. Sorry, no VMAP1 data available for the Great Lakes region, at least not for the part where KOSH is located, Martin. -- Unix _IS_ user friendly - it's just selective about who its friends are ! -- --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] Tides in FlightGear?
Hi! Something important I have been missing in FG when flying over the North Sea is the effect of tides, i.e. the areas close to the coast falling dry at low tide. I realize that there are not many parts of the world where a low tide causes the sea to recede significantly, but in the Wadden Sea and at the Atlantic coast of France around Mt. St. Michel this is quite dramatic and certainly noticeable from the air. Now as far as I understand the FG scenery, the surface that represents the sea is fixed at the mean sea level. So what I have been thinking, would it be possible to put a few mud-colored rectangles on top of the sea level plane that grow and shrink (by morphing linearly between a low tide and a high tide size) according to tide? Or could the FG rendering engine be told to somehow texture the mudflats differently from the sea, so that no extra objects would be required? Of course the tide calculations would not be required to be extremely accurate à la xtide -- the hour angle of the Moon would probably be quite sufficient as a broad indication of tide. Martin
Re: [Flightgear-devel] Tides in FlightGear?
Martin Doege wrote: Of course the tide calculations would not be required to be extremely accurate à la xtide -- the hour angle of the Moon would probably be quite sufficient as a broad indication of tide. It would have to be slightly more than just that. At the very least, you'd need a delay-factor for the local hour-angle of the moon. Also an amplitude-factor. Even then, you'd sometimes get the tide happening about an hour displaced from reality due to the loss of the solar tide. If you added a simple solar tide (i.e a delay factor for the local solar hour-angle and a solar-tide amplitude-factor) then you'd probably be getting a pretty good rough approximation for a given area. Good enough for a flight-sim, certainly. It would also better model those areas of the world where the solar tide dominates and there's only one significant tide per day. Steve --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid7521bid$8729dat1642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] small VMAP1 demo
Martin Spott wrote: Sorry, no VMAP1 data available for the Great Lakes region, at least not for the part where KOSH is located, Here's an overview: ftp://ftp.ihg.uni-duisburg.de/GIS/GISData/NIMA/VMAP1/vmap1_coverage_west.gif As far as I was able to determine, KOSH ist located in the empty corner between the tiles 17 and 23, west of Lake Michigan, Martin. -- Unix _IS_ user friendly - it's just selective about who its friends are ! -- --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] Google earth mapping for fgfs scenery
Hi all! I'm figuring out how to extract google earth imagery to map the current scenery in FGFS. Would it be posible? What about license issues? Anyone knows how can affect this to the fgfs license. Thank you. -- Gonzalo Aguilar Delgado - Ingeniero en Informática [ Seguridad Medios de pago ] --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid7521bid$8729dat1642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] F-14 anyone?
3D model is now finished (well mostly since I intend to add the refuelling probe and boarding ladder) Now to the textures and animation (alas the latter is going to be tough particularly for the gear !) have a look at avsim forum for latest renders and ingame shots --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] F-14 anyone?
flying.toaster wrote: have a look at avsim forum for latest renders and ingame shots Hey, your F-14 looks really 'harmless' with the wings swept forward :-) I'm happily looking forward to see this famous aircraft being part of FlightGear. Cheers, Martin. P.S.: For all those users that don't visit the AVSIM forum regularly it's a bit difficult to identify your posting. Here's the direct link for other poor fellows like me: http://forums.avsim.net/dcboard.php?az=show_mesgforum=198topic_id=1757mesg_id=1805 -- Unix _IS_ user friendly - it's just selective about who its friends are ! -- --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Tides in FlightGear?
It would have to be slightly more than just that. At the very least, you'd need a delay-factor for the local hour-angle of the moon. Also anamplitude-factor.Even then, you'd sometimes get the tide happening about an hourdisplaced from reality due to the loss of the solar tide. If you added a simple solar tide (i.e a delay factor for the local solar hour-angle anda solar-tide amplitude-factor) then you'd probably be getting a prettygood rough approximation for a given area. Good enough for a flight-sim, certainly. Yes, some kind of tide delay factor, preferably one that can vary from place to place, as well as solar and lunar tidal amplitudes (from hour angle and distance) would probably be required to get something roughly accurate. However, calculating the tide for a given coordinate is probably the lesser problem here (one can use xtide's output for reference, etc.) My main issue is whether the visualization of the tidal effects can somehow be done with e.g. a Nasal script (good) or by extensively modifying the FG engine itself (not so good, since the FG/SimGear source code is pretty abstract and not very well-commented IMHO) It would also better model those areas of the world where the solar tidedominates I thought the lunar tide is always dominant and the solar tide just adds to it during spring tide. Or have I misunderstood you there? Martin
Re: [Flightgear-devel] Tides in FlightGear?
Curtis L. Olson wrote: The trick maybe to find a good sea floor elevation database that is reasonably compatible with SRTM, and mesh the two data sets seamlessly. http://www.ngdc.noaa.gov/mgg/bathymetry/relief.html has an interesting survey on bathymetric data. But I don't think we need a realistic simulation of the effect for use in Flightgear, changing colours according to the tidal changes should be sufficient. This could be done by declaring respective areas of the ocean as tideland and moving the shoreline proportionally to the time that has passed since the last hig- or low-tides. Still someone would have to develop a schema to calculate the tides Martin. -- Unix _IS_ user friendly - it's just selective about who its friends are ! -- --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] small VMAP1 demo
On Fri, 26 May 2006 13:04:10 + (UTC), Martin wrote in message [EMAIL PROTECTED]: Martin Spott wrote: Sorry, no VMAP1 data available for the Great Lakes region, at least not for the part where KOSH is located, Here's an overview: ftp://ftp.ihg.uni-duisburg.de/GIS/GISData/NIMA/VMAP1/vmap1_coverage_west.gif As far as I was able to determine, KOSH ist located in the empty ..yup, FG puts you at 43d59.488m N and 88d32.931m W on the east end of RWY 27 by default. corner between the tiles 17 and 23, west of Lake Michigan, ..ok, that leaves draping satellite etc shots around it an option. Parking 7000 planes there, I see a parked plane texture as the only viable option, or my framerates will drop waaay down. I remember seeing something here about that by Jon S. -- ..med vennlig hilsen = with Kind Regards from Arnt... ;o) ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Tides in FlightGear?
Martin Spott wrote: The triangles don't have to be changed at all because in our Scenery the tidal area is part of the ocean. The idea was about changing nothing but the colour, Ok, so you are only talking about areas that are marked explicitly as tidal areas in our land use/land cover data base, and then they would be either at full tide or no tide ... that's probably simpler to manage. Curt. --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Tides in FlightGear?
Curtis L. Olson wrote: Martin Spott wrote: The triangles don't have to be changed at all because in our Scenery the tidal area is part of the ocean. The idea was about changing nothing but the colour, Ok, so you are only talking about areas that are marked explicitly as tidal areas in our land use/land cover data base, and then they would be either at full tide or no tide ... that's probably simpler to manage. Curt. I like the idea. Having some real-life experience flying over the wadden area that Martin (Doege) referred to, I can tell that the low tide areas can be very scenic. A change in texture would indeed suffice, because the elevation differences are almost negligable. Cheers, Durk --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] Google earth mapping for fgfs scenery
On Fri, 26 May 2006 18:28:44 +0200, Mark wrote in message [EMAIL PROTECTED]: I don't know if it's possible, but as far as license issues - that's the show stopper. However, if you are still interested, take a look at NASA's Worldwind, which is comparable to Google-earth. All of their imagery is definately in the public domain and using this would be possible. http://worldwind.arc.nasa.gov/ ..and it requires Wintendo 2000 or XP. Yeehaw. ..I can still use screenshots from it for for the AirVenture(.org) scenery that I and Dene has started building for the next FGLive cd or dvd, the most important part is the 4 entry routes from Ripon past Fisk to KOSH, then the area around KOSH up north to Madison KMSN and down south to Fond du Lac KFDL. ..it's all covered in http://airventure.org/2006/flying/notam06.pdf and http://airventure.org/atc/ and diverges in significant ways from normal procedures and last years procedures and every years procedures, so no need for polar bear fur to mess up nobly, cherio! ;o) Gonzalo Aguilar Delgado wrote: Hi all! I'm figuring out how to extract google earth imagery to map the current scenery in FGFS. Would it be posible? What about license issues? Anyone knows how can affect this to the fgfs license. Thank you. -- ..med vennlig hilsen = with Kind Regards from Arnt... ;o) ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Flightgear wiki
Martin Spott wrote: [EMAIL PROTECTED] wrote: Thoughts / comments ? I don't want to discourage you, FlightGear needs every helping hand. BUT it might be a bit counterproductive if everyone creates their own FlightGear wiki. Before starting a new one you probably should have contacted the maintainer of the other wiki to discuss how to proceed (or are you actually the maintainer of the other wiki ?). I thought the idea behind a wiki is to avoid spreading information over dozends of sites by enabling everyone to contribute to _one_ wiki that covers a certain topic. The whole idea is being foiled if numerous wikies are being run in order to 'serve' FlightGear users. Regards, Martin. Good thoughts - I agree one wiki will do, I'm just trying to make the case for a better wiki than the current one. Judging from the lack of response, I'm guessing there aren't many strong (any at all) opinions on the matter and this idea may just fall through the cracks. Does anyone see advantages to the current seedwiki site that I'm overlooking? Does anyone know who is the maintainer of the current wiki? Simon --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid=107521bid=248729dat=121642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Tides in FlightGear?
Ok, so you are only talking about areas that are marked explicitly as tidal areas in our land use/land cover data base, and then they would be either at full tide or no tide ... that's probably simpler to manage. The idea was more like a linear transition between the high and low tide patterns. Only having the scenery flip-flop between two states is probably better than nothing at all but not perfect either (e.g., around Mont Saint Michel, the rising water has a horizonal speed of up to 1 m/s, so you can watch its movement easily!). If the low tide pattern is already marked in the land cover database as such, the only problem is calculating the horizontal shapes of the water as it rises (or falls). If the bathymetry is unknown, perhaps the horizontal patterns can be faked by using a 2D cellular automaton. The rules just have to set up so that the water rushes back into the narrower areas (where the water is supposedly deeper) first and when it falls, retreats from those areas last. The CA could be running in FG and occasionally update the sea / mud status of a randomly selected tile that is both close to the water and within the visible range. Martin --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnkkid7521bid$8729dat1642 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
