Re: [Flightgear-devel] patch: don't warn if a sound is clipped, was Re: For the - Author of Concorde - Continued (Email in Unicode format)

2007-05-29 Thread Erik Hofman
Maik Justus wrote:
 Hi,
 the enclosed patch would do the thing (but maybe SG_DEBUG would be 
 better, it's really only a debug message, the user need not to be warned 
 about this).

Indeed and that's what the warning is for; the author should fix the 
sound configuration file.

Erik

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Re: [Flightgear-devel] OT: RL Flexwing Microlight General Skills Test (aka checkride)

2007-05-29 Thread Stuart Buchanan

--- Ralf Gerlich wrote:
 Hi there!
 
 Congratulations, Stuart, and I wish you many great flights and happy
 landings!

Thanks - and to you too.

  Finally - Ralf - good luck with your test!
 
 Hm, I should have posted at least a quick note ;-)
 
 I already have passed my practical exam about one month ago but I just
 didn't have the time yet to write about it. I will make up for that when
 I come home from my conference at the end of the week.

Congratulations! I look forward to reading about it.

 I also have started training for the national PPL (PPL-N), which in
 Germany allows you to fly single-engine planes with MTOW up to 750kg at
 day and within Germany. The club has a DA20 Katana for that, which costs
 only slightly more in the hour than our microlights.
 
 As owner of a license for aerodynamically controlled microlights in
 Germany you need only 7 hours of practice (incl. 10 solo takeoffs and -
 hopefully - landings), a theoretical exam and another practical exam til
 you have the PPL-N.
 
 With another 15 hours and another theoretical exam (IIRC no practical)
 you can call yourself owner of a full-blown JAR PPL-A. So currently I am
 21 hours, two theoretical and one practical exam away from being a
 real SEP-pilot ;-)

That's very impressive, and sounds like a great way to head towards your
JAR PPL. I don't think we have such an easy migration up the weight
classes here in the U.K. - at best I think I would get 10 hours credit. 





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Re: [Flightgear-devel] strange behavior of 0.9.11-pre1

2007-05-29 Thread Ladislav Michnovič
2007/5/28, Pigeon [EMAIL PROTECTED]:
  If I changed the view
  strange  overlaying triangles were visible on the sky. Does anybody
  similar problems?

 A while ago a few of us has come to a conclusion that it only
 happens with the nvidia driver. Those weird triangles appear when a FG
 menu is on the screen at the same time.

 Last time some of us confirmed the issue went away with the latest
 nvidia driver (9755). However with FG-plib cvs (as of yesterday) I'm
 still seeing this glitch with 9755. Haven't tried FG-osg yet.

Well, the screenshot was made on PCI-Ex 7300 card with Nvidia 9755
binary driver.

Regards Ladislav.

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Re: [Flightgear-devel] strange behavior of 0.9.11-pre1

2007-05-29 Thread Nick Warne
On Tuesday 29 May 2007 09:46:52 Ladislav Michnovič wrote:
 2007/5/28, Pigeon [EMAIL PROTECTED]:
   If I changed the view
   strange  overlaying triangles were visible on the sky. Does anybody
   similar problems?
 
  A while ago a few of us has come to a conclusion that it only
  happens with the nvidia driver. Those weird triangles appear when a FG
  menu is on the screen at the same time.
 
  Last time some of us confirmed the issue went away with the latest
  nvidia driver (9755). However with FG-plib cvs (as of yesterday) I'm
  still seeing this glitch with 9755. Haven't tried FG-osg yet.

 Well, the screenshot was made on PCI-Ex 7300 card with Nvidia 9755
 binary driver.

 Regards Ladislav.

If I remember rightly, I had this issue in plib once, and I found it was 
caused by a render option - but I cannot remember which one.  Try turning 
on/off the sky/cloud rendering options.

Nick



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Re: [Flightgear-devel] 3d Scenery Palm Tree

2007-05-29 Thread Roberto Inzerillo
I'm done with those palm trees. There are three available now; enough to 
get some variation inside the scenery when needed.

In case someone needs them, simply point the browser to:
http://www.laubfrosch.it/fgfs/3d/palms_screenshot.jpg
http://www.laubfrosch.it/fgfs/3d/palm_01.zip
http://www.laubfrosch.it/fgfs/3d/palm_02.zip
http://www.laubfrosch.it/fgfs/3d/palm_03.zip

Roberto

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Re: [Flightgear-devel] For the - Author of Concorde - VIDEO of actual errors - Continued

2007-05-29 Thread gh.robin
On Tue 29 May 2007 04:59, Forums Virgin Net wrote:
 04/ Further:

 As promised here is a video showing how the control surfaces act in
 oposition to the commands sent to them!

 Download Link
 http://files.ww.com/files/33558.html (Web Browser Interface)
 http://files.ww.com/getfile.html/33558/1932104765/Concorde0911-error.divx.a
vi (Download Video to HD)

SNIP
 OpenAL error (AL_INVALID_VALUE): bind_source (alGenSources)
 Failed to generate audio source.
 OpenAL error (AL_INVALID_VALUE): bind_source (alGenSources)
 Failed to generate audio source.
 Chat [Aerotro] client 'mpdummy' has left

 OpenAL error (AL_INVALID_VALUE): bind_source (alGenSources)
 Failed to generate audio source.

 Regards, Aerotro



That good demonstrative Video, makes me to ask two opened questions and 
remarks

Don't we have some main modifications regarding the autopilot , from 0.9.10 to 
0.9.11 pre1, which could explain that strange behaviour ?
I did noticed mainly some malfunctions of the autopilot when using FG cvs HEAD 
branch, though seemed working when using PRE_OSG_PLIB_20061029, which don't 
mean it is fully working on that branch

We have had  modifications and improvements regarding Nasal, from 0.9.10 to 
0.9.11 pre1 
Concorde is using a lot of Nasal scripts.
Does not these differences could explain that strange behaviour?
That video shows that we have inconsistencies in the data when operating to 
land.

Regards


-- 
Gérard


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[Flightgear-devel] odd files in FG-data

2007-05-29 Thread Ladislav Michnovič
Hello.
Are these files forgotten in the tarball or do they have any purpose?

data/Aircraft/A-10/Nasal/.#A-10.nas.1.8
data/Aircraft/Citation-Bravo/.#Bravo-set.xml.1.4
data/Aircraft/Citation-Bravo/.#Bravo-set.xml.1.5
data/Aircraft/Citation-Bravo/.#Bravo-set.xml.1.6
data/Aircraft/Citation-Bravo/.#Bravo-set.xml.1.7
data/Nasal/.#lead_target.nas.1.1
data/Nasal/.#lead_target.nas.1.3
data/Nasal/.#lead_target.nas.1.5
data/Nasal/.#track_target.nas.1.3
data/gui/dialogs/.#rendering.xml.1.21

and especially these

data/Aircraft/A-10/Models/*.bak

Regards Ladislav.

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Re: [Flightgear-devel] strange behavior of 0.9.11-pre1

2007-05-29 Thread Ladislav Michnovič
2007/5/29, Nick Warne [EMAIL PROTECTED]:
 If I remember rightly, I had this issue in plib once, and I found it was
 caused by a render option - but I cannot remember which one.  Try turning
 on/off the sky/cloud rendering options.

 Nick

If I turn off 3D clouds rendering option, these artifacts are shown
for a second and then they disappear. But they are still visible for a
while when changing the view.

Regards Ladislav.

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Re: [Flightgear-devel] strange behavior of 0.9.11-pre1

2007-05-29 Thread gh.robin
On Tue 29 May 2007 10:46, Ladislav Michnovič wrote:
 2007/5/28, Pigeon [EMAIL PROTECTED]:
   If I changed the view
   strange  overlaying triangles were visible on the sky. Does anybody
   similar problems?
 
  A while ago a few of us has come to a conclusion that it only
  happens with the nvidia driver. Those weird triangles appear when a FG
  menu is on the screen at the same time.
 
  Last time some of us confirmed the issue went away with the latest
  nvidia driver (9755). However with FG-plib cvs (as of yesterday) I'm
  still seeing this glitch with 9755. Haven't tried FG-osg yet.

 Well, the screenshot was made on PCI-Ex 7300 card with Nvidia 9755
 binary driver.

 Regards Ladislav.


Hello,

That strange behavior, is not new to me , i have it since .may be 8 
month , === only  when using Menu.

7800 GS AGP card with Nvidia 9755 driver.

--geometry=1800x145

That happen with any FG configuration , shadow no shadow , clouds 3D no clouds 
3D , 

I never caught the attention on it , i should have to  :)

Regards

-- 
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Re: [Flightgear-devel] strange behavior of 0.9.11-pre1

2007-05-29 Thread gh.robin
On Tue 29 May 2007 14:33, gh.robin wrote:
 On Tue 29 May 2007 10:46, Ladislav Michnovič wrote:
  2007/5/28, Pigeon [EMAIL PROTECTED]:
If I changed the view
strange  overlaying triangles were visible on the sky. Does anybody
similar problems?
  
   A while ago a few of us has come to a conclusion that it only
   happens with the nvidia driver. Those weird triangles appear when a FG
   menu is on the screen at the same time.
  
   Last time some of us confirmed the issue went away with the latest
   nvidia driver (9755). However with FG-plib cvs (as of yesterday) I'm
   still seeing this glitch with 9755. Haven't tried FG-osg yet.
 
  Well, the screenshot was made on PCI-Ex 7300 card with Nvidia 9755
  binary driver.
 
  Regards Ladislav.

 Hello,

 

 --geometry=1800x1450=  only to repare one mistake  , versus my 
previous mail

 Regards

-- 
Gérard


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[Flightgear-devel] A new GPL model is coming = Transport twin boom aircraft Nord 2502

2007-05-29 Thread gh.robin



Hello ,

A transport aircraft model is under construction, by the next days a first 
alpha version  will be available.
That aircraft is the Nord 2502 here is the link on Wikipedia which gives a 
descriptions of the real ones
  french  http://fr.wikipedia.org/wiki/Nord_2501
  english http://en.wikipedia.org/wiki/Nord_Noratlas

and snapshots of the model 

http://perso.orange.fr/GRTux/Noratlas-FG-pic1.jpg
http://perso.orange.fr/GRTux/Noratlas-FG-pic2.jpg
http://perso.orange.fr/GRTux/Noratlas-FG-pic3.jpg
http://perso.orange.fr/GRTux/Noratlas-FG-pic4.jpg

Regards


-- 
Gérard


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Re: [Flightgear-devel] odd files in FG-data

2007-05-29 Thread Curtis Olson

Hi, thanks for catching these.  I will clean them up for the next
pre-release.

Curt.


On 5/29/07, Ladislav Michnovič wrote:


Hello.
Are these files forgotten in the tarball or do they have any purpose?

data/Aircraft/A-10/Nasal/.#A-10.nas.1.8
data/Aircraft/Citation-Bravo/.#Bravo-set.xml.1.4
data/Aircraft/Citation-Bravo/.#Bravo-set.xml.1.5
data/Aircraft/Citation-Bravo/.#Bravo-set.xml.1.6
data/Aircraft/Citation-Bravo/.#Bravo-set.xml.1.7
data/Nasal/.#lead_target.nas.1.1
data/Nasal/.#lead_target.nas.1.3
data/Nasal/.#lead_target.nas.1.5
data/Nasal/.#track_target.nas.1.3
data/gui/dialogs/.#rendering.xml.1.21

and especially these

data/Aircraft/A-10/Models/*.bak

Regards Ladislav.

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Re: [Flightgear-devel] strange behavior of 0.9.11-pre1

2007-05-29 Thread Curtis Olson

On 5/29/07, gh.robin wrote:


--geometry=1800x1450=  only to repare one mistake  , versus my
previous mail



I can add one more bit of information.  I have seen these visual artificacts
with the default menu coloring scheme.  If you switch to the alternative
menu/gui style (Shift-F11?) then these artifcacts go away ... so maybe we
are inadvertently leaving some sort of alpha blend mode on after drawing the
menus which is messing up the sky which is the first thing drawn in the next
frame???

Curt.
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Re: [Flightgear-devel] 3d Scenery Palm Tree

2007-05-29 Thread Curtis Olson

Hi Roberto,

I have added these to cvs.  They won't immediately be included in the
scenery, but they are now available in the 3d model library for scenery
designers to use.

Thanks,

Curt.


On 5/29/07, Roberto Inzerillo wrote:


I'm done with those palm trees. There are three available now; enough to
get some variation inside the scenery when needed.

In case someone needs them, simply point the browser to:
http://www.laubfrosch.it/fgfs/3d/palms_screenshot.jpg
http://www.laubfrosch.it/fgfs/3d/palm_01.zip
http://www.laubfrosch.it/fgfs/3d/palm_02.zip
http://www.laubfrosch.it/fgfs/3d/palm_03.zip

Roberto

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Re: [Flightgear-devel] A new GPL model is coming = Transport twin boomaircraft Nord 2502

2007-05-29 Thread gh.robin
On Tue 29 May 2007 15:55, Berndt, Jon S wrote:
  Hello ,
 
  A transport aircraft model is under construction, by the next
  days a first alpha version  will be available.
  That aircraft is the Nord 2502 here is the link on Wikipedia
  which gives a descriptions of the real ones
french  http://fr.wikipedia.org/wiki/Nord_2501
english http://en.wikipedia.org/wiki/Nord_Noratlas
 
  and snapshots of the model
 
  http://perso.orange.fr/GRTux/Noratlas-FG-pic1.jpg
  http://perso.orange.fr/GRTux/Noratlas-FG-pic2.jpg
  http://perso.orange.fr/GRTux/Noratlas-FG-pic3.jpg
  http://perso.orange.fr/GRTux/Noratlas-FG-pic4.jpg
 
  Regards
 
  --
  Gérard

 Very nice.

 Jon

Thanks, Jon

And may be an historic precision is necessary 
 the snapshot with parachuter was for the fun, because 2502 which is a mixted   
propulsion , piston engine and turbojets  was only in use for civilian 
transports.
Only the 2501 without turbojets was used for military transports.

Who can more can less , so, from that 2502 i will be able to offer a 2501 
for the same price  :)

Regards

-- 
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Re: [Flightgear-devel] patch: don't warn if a sound is clipped, was Re: For the - Author of Concorde - Continued (Email in Unicode format)

2007-05-29 Thread Curtis Olson

On 5/29/07, Erik Hofman wrote:


Maik Justus wrote:
 Hi,
 the enclosed patch would do the thing (but maybe SG_DEBUG would be
 better, it's really only a debug message, the user need not to be warned
 about this).

Indeed and that's what the warning is for; the author should fix the
sound configuration file.



Hi Maik,

I do see your point, these scrolling warnings slow down FlightGear and are
annoying.  But I'm more with Erik on this one.  These warnings indicate
there is a serious problem in how the author configured the sound effects
for their model and they are not getting the audio output that they
expected.  Ideally the aircraft author would fix the sound effects
configuration so the results are in the allowable range.

Curt.
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Re: [Flightgear-devel] patch: don't warn if a soun d is clipped,was Re: For the - Author of Conco rde - Continued (Email inUnicode format)

2007-05-29 Thread Roy Vegard Ovesen
On Tuesday 29 May 2007 10:22, Erik Hofman wrote:

 Indeed and that's what the warning is for; the author should fix the
 sound configuration file.

I added beeping from the KAP140 and I see that that sound gets clipped. Here's 
a diff for the C172p sound configuration file. Please apply.


-- 
Roy Vegard Ovesen
Index: c172-sound.xml
===
RCS file: /var/cvs/FlightGear-0.9/data/Aircraft/c172p/c172-sound.xml,v
retrieving revision 1.2
diff -p -u -r1.2 c172-sound.xml
--- c172-sound.xml	26 Apr 2007 18:04:55 -	1.2
+++ c172-sound.xml	29 May 2007 15:21:00 -
@@ -241,11 +241,8 @@
condition
 property/autopilot/KAP140/annunciators/beep/state/property
/condition
-   volume
-offset0.5/offset
-   /volume
   /kap140beep
 
 /fx
- 
+
 /PropertyList
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Re: [Flightgear-devel] patch: don't warn if a sound is clipped, was Re: For the - Author of Concorde - Continued (Email inUnicode format)

2007-05-29 Thread Curtis Olson

On 5/29/07, Roy Vegard Ovesen wrote:


On Tuesday 29 May 2007 10:22, Erik Hofman wrote:

 Indeed and that's what the warning is for; the author should fix the
 sound configuration file.

I added beeping from the KAP140 and I see that that sound gets clipped.
Here's
a diff for the C172p sound configuration file. Please apply.



Ok, thanks, every little bit helps.

Curt.
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Re: [Flightgear-devel] RL Flexwing Microlight General Skills

2007-05-29 Thread Sid Boyce
From: Stuart Buchanan [EMAIL PROTECTED]
Subject: [Flightgear-devel] OT: RL Flexwing Microlight General Skills
Test(aka checkride)
To: FlightGear Dev flightgear-devel@lists.sourceforge.net
Message-ID: [EMAIL PROTECTED]
Content-Type: text/plain; charset=ascii

  Hi All,
 
  In the tradition of mentioning milestones on the way to a pilot's 
 license, I thought I'd mention that I passed my final test for my 
 microlight license on Saturday - the General Skills Test. I think this 
 is the equivalent of the U.S. check-ride - an examination of your 
flying  skills you have to pass before you can get your license.
 
  Since going solo at the beginning of March, I had been very lucky 
with  the weather and managed to get lots of flying in - up to 5 hours 
per week. Having my own aircraft helped a lot, as I could do some solo 
 flight anytime, as long as an instructor was at the airfield.
 
  As well as lots of circuit training, I also had to complete two solo 
 cross-countries, which I did on two consecutive days. Both flights 
were to small private grass strips which really brought home the 
advantage of flying a microlight. I can land and take-off on a 300m 
strip no problem, and less than smooth surfaces are merely inconvenient 
rather than out-right dangerous. While I'm certain that GA aircraft can 
and do use such strips I think the required skill level is much higher.
 
  So, by early May I was just about ready for my test. The airstrip I 
 fly from is quite small, and while some GA aircraft visit, in general 
 it is microlight only. In contrast, my test took place at Perth 
 airport, a much larger airport with much more GA traffic and requiring 
 radio. To add to the challenge, I was to take it in a much larger 
 microlight (if that isn't a contradiction in terms) that I hadn't 
flown before.
 
  Unfortunately, the good weather I had enjoyed didn't last. My 
original test date was cancelled due to the weather, and when I finally 
I came to do my test I had only had one revision lesson - two weeks before!

 The examiner (also an instructor) took me up for a 30 minute 
 familiarization flight, to get used to the aircraft, airport and get 
 rid of some of my nerves. This was great and really helped my calm 
down and treat the following flight like any other. We then had a break 
 while he examined my friend (who also passed) and before long I was 
 once again strapping in and going through the pre-startup checks.

  My normal instructor is quite talkative, so there was quite a 
contrast with the examiner who naturally is not going to be leading you 
by the hand through the various maneuvers. Conditions were quite 
thermally - at one point we were keeping a constant altitude with the 
engine at idle - which meant that judging level flight was quite 
challenging. This at least meant the some of my minor altitude 
deviations were lost in the general noise.
 
 The upper airwork went pretty well, steep turns, unusuall attitudes, 
 emergency landings. The only tricky part was a stall, as this 
 particular model simply wouldn't do so without some fairly high 
nose-up pitch. At one point I had the bar right up against the front 
strut and all that was happening was we were slowly descending - not 
even a mush. However, this was a known trait of this particular model 
(my own aircraft stalls more easily), and once I got the nose up high 
enough, down it went and I recovered no problem.
 
 Airwork completel, I was given instructions to head back to the 
 airport. What airport? I couldn't see it anywhere. The examiner 
 realized almost immediately that I hadn't found it and queried if I 
 knew where I was going. Declaring oneself lost is an immediate 
failure, so I said I knew where it was, but hadn't spotted it yet... I 
 double-checked the map, and spent a very anxious 5 minutes heading 
 (hopefully) towards it, before finally spotting it. As is often the 
 case, I was looking in the right direction, but not the right distance 
 - it was further away than I expected, due to the tailwind we had and 
 the higher airspeed of the aircraft (65mph vs 48mph).
 
 Once back in the circuit, we had some fun and games with engine 
 failures all over the place, all of which went smoothly, culminating 
in an immediate engine failure takeoff which I put back on the runway 
with plenty of room to spare. As we taxied back to the hangar those 
 wonderful words - Your flying good - I'm going to pass you.
 
  I still have 25 minutes of flying to do to meet the minimum 
 requirements before I can send away for my license, but for the first 
 time I'll be flying without an objective in mind, or some specific 
 airwork to practise. I think I'll take a flight along the coast and 
 look at the Bass Rock and Tantallon Casle. Both modeled in the global 
 scenery database BTW - take off from Edinburgh Airport (EGPH) or East 
 Fortune (EG32) and head East along the coast.
 
 For those who might be interested in getting their microlight 

Re: [Flightgear-devel] [Flightgear-cvslogs]

2007-05-29 Thread Martin Spott
gh.robin wrote:

 May be Martin could include it in the FG osg cvs.

Others have CVS write access to the source code. I don't - and I don't
want to,

Martin.
-- 
 Unix _IS_ user friendly - it's just selective about who its friends are !
--

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[Flightgear-devel] FlightGear-0.9.11-pre1 Stopwatch nasal error

2007-05-29 Thread Nathaniel Homier
For FlightGear-0.9.11-pre1

I get this error opening the stopwatch but not using using and closing 
it.  Open stopwatch but don't use it just close it.  I hope this helps 
with the upcoming release.

[EMAIL PROTECTED]:~$ fgfs
   Model Author:  Unknown
   Creation Date: 2002-01-01
   Version:   $Id: c172p.xml,v 1.18 2007-01-15 12:50:45 ehofman Exp $
   Description:   Cessna C-172
Initializing Nasal Electrical System
power up
Nasal runtime error: props.setDoubleValue() with non-number
   at /home/nate/data/Nasal/props.nas, line 26
   called from: __dlg:stopwatch-dialog, line 2

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Re: [Flightgear-devel] [Flightgear-cvslogs]

2007-05-29 Thread gh.robin
On Tue 29 May 2007 18:52, Martin Spott wrote:
 gh.robin wrote:
  May be Martin could include it in the FG osg cvs.

 Others have CVS write access to the source code. I don't - and I don't
 want to,

   Martin.


Oh sorry Martin,  i did no know,

but like we can say 'We loan only to rich persons  :)

this a translation from French , i hope it can be understood in English

Regards 
-- 
Gérard


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[Flightgear-devel] Groundspeed and MP radar

2007-05-29 Thread syd sandy
Hi all , 
I would like to add a groundspeed property to the autopilot route manager ... 
the calculations are already done in the source code , I would just like to 
output that to a property for the Primus 1000 FMS mode.GPS has an indicated 
-groundspeed , but I would prefer to use the route-manager for this ... any 
objections /suggestions ?
Im also trying to do a 2d radar panel , using the radar x-shift and y-shift , 
which of coarse need scaling ... can scaling use a property ? Ive had no luck 
so far...  
 
syd  sandy [EMAIL PROTECTED]

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[Flightgear-devel] Fresh A-6 Intruder snapshot with Terrain Clearance Radar

2007-05-29 Thread alexis bory
hi all,

I just uploaded a tarball of the current A-6 developpement:

   http://croo.murgl.org/fgfs/A-6A/A-6E.20070529.tgz

The Terrain Clearance Radar is a brand new feature in FGFS.
Actually setting a range  1.5 mile makes FGFS crash when using OSG, but 
the feature is usable and interesting anyway.

I have to think about some details before asking to commit this snap 
shoot. At the beginning I planned to model an A6-E and now I discover 
that I'm modeling an A-6A (if we take in account which features were 
available in each type of A-6).

Please read README.news, there are, at its beginning, a few words about 
the radar display controls.


Cheers,

Alexis

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Re: [Flightgear-devel] Groundspeed and MP radar

2007-05-29 Thread alexis bory
syd  sandy a e'crit :
  Hi all , I would like to add a groundspeed property to the autopilot
  route manager ... the calculations are already done in the source
  code , I would just like to output that to a property for the Primus
  1000 FMS mode.GPS has an indicated -groundspeed , but I would prefer
  to use the route-manager for this ... any objections /suggestions ?

Why not in /velocities ?


(I used a Nasal to get a ground speed, I'll be happy to get ride of it :)

Alexis


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[Flightgear-devel] A-6 Terrain Clearance Radar

2007-05-29 Thread alexis bory
Useful : a page of the pilots manual explainig how works this particular 
mode:

http://croo.murgl.org/fgfs/A-6A/img/tc.jpg

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Re: [Flightgear-devel] Groundspeed and MP radar

2007-05-29 Thread syd sandy
On Tue, 29 May 2007 22:49:44 +0200
alexis bory [EMAIL PROTECTED] wrote:

 syd  sandy a e'crit :
   Hi all , I would like to add a groundspeed property to the autopilot
   route manager ... the calculations are already done in the source
   code , I would just like to output that to a property for the Primus
   1000 FMS mode.GPS has an indicated -groundspeed , but I would prefer
   to use the route-manager for this ... any objections /suggestions ?
 
 Why not in /velocities ?
 
 
 (I used a Nasal to get a ground speed, I'll be happy to get ride of it :)
 
 Alexis

Well , Ive thought of that too .researching these things leads me to believe 
that in real life (I could be wrong),groundspeed is calculated using a nav 
signal as a reference point , so it is only accurate if you are flying directly 
toward that point...
But a /velocities/groundspeed could be used as a starting point ...  

-- 
syd  sandy [EMAIL PROTECTED]

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Re: [Flightgear-devel] Groundspeed and MP radar

2007-05-29 Thread John Denker
On 05/29/2007 08:06 PM, syd  sandy wrote:

   Well , Ive thought of that too .researching these things leads me to 
believe that in real life (I
   could be wrong),groundspeed is calculated using a nav signal as a 
reference point

That's not right.

Groundspeed is groundspeed.  There's only one proper definition of
groundspeed.

An _approximation_ to groundspeed in terms of the rate of slant range
made good to/from a navaid is sometimes encountered, for example in a
_DME_ unit.  This is considered a nonideality of the DME system, not
a redefinition of groundspeed.

This nonideality is never AFAIK exhibited by GPS or RADAR units.  Every
GPS and every RADAR I've ever seen or heard of, when asked to report
groundspeed, reports honest-to-goodness groundspeed, independent of any
route, independent of the relationship between the ground track and
this-or-that navaid.

, so it is only
accurate if you are flying directly toward that point... But a 
/velocities/groundspeed could be
used as a starting point ...

It takes only a couple of lines of nasal to calculate the groundspeed
in terms of the already-available properties.  Hint:
Aircraft/A-10/Nasal/aar.nas line 261
... so I don't understand what the discussion is about.

The Subject: line refers to groundspeed.  If you want to ask about
something else, perhaps about ETE or ETA at this-or-that station,
then the answer might become route-dependent.  (Different questions
have different answers!)


So:  If there's a problem here that needs solving, please describe
the problem more fully.



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Re: [Flightgear-devel] Groundspeed and MP radar

2007-05-29 Thread syd sandy
On Tue, 29 May 2007 21:36:55 -0400
John Denker [EMAIL PROTECTED] wrote:

 On 05/29/2007 08:06 PM, syd  sandy wrote:
 
Well , Ive thought of that too .researching these things leads me to 
 believe that in real life (I
could be wrong),groundspeed is calculated using a nav signal as a 
 reference point
 
 That's not right.
 
 Groundspeed is groundspeed.  There's only one proper definition of
 groundspeed.

did you miss the (I could be wrong )?;)
 
 An _approximation_ to groundspeed in terms of the rate of slant range
 made good to/from a navaid is sometimes encountered, for example in a
 _DME_ unit.  This is considered a nonideality of the DME system, not
 a redefinition of groundspeed.
 
 This nonideality is never AFAIK exhibited by GPS or RADAR units.  Every
 GPS and every RADAR I've ever seen or heard of, when asked to report
 groundspeed, reports honest-to-goodness groundspeed, independent of any
 route, independent of the relationship between the ground track and
 this-or-that navaid.
 
 , so it is only
 accurate if you are flying directly toward that point... But a 
 /velocities/groundspeed could be
 used as a starting point ...
 
 It takes only a couple of lines of nasal to calculate the groundspeed
 in terms of the already-available properties.  Hint:
 Aircraft/A-10/Nasal/aar.nas line 261
 ... so I don't understand what the discussion is about.

Well I wasnt trying to start a war here ,simply trying to get my Primus 1000 
system updated, but groundspeed is calculated in the source code , and since 
its been requested before , I thought it might be a good idea to show it in the 
property tree...
I just dont see a reason for redoing everything in nasal that's already done in 
the source code 
 
 The Subject: line refers to groundspeed.  If you want to ask about
 something else, perhaps about ETE or ETA at this-or-that station,
 then the answer might become route-dependent.  (Different questions
 have different answers!)
 
 
 So:  If there's a problem here that needs solving, please describe
 the problem more fully.

Like I said , it wasn't really a problem, it was a suggestion 
The only problem I see is the ai radar x-shift and y-shift that should REALLY 
be normalized to the radar range :)
Have a nice day ...
Cheers,
Syd 
 
 
 
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