RE: [Flightgear-devel] HTTPD Refresh Option Suggestion

2005-08-03 Thread Alberico, James F
Hi, all.

Please consider whether this would be a worthwhile addition.

I'm using a little trick to get the HTTPD browser window to update
periodically.  In this case, the interval is hardcoded to 1 sec.  A
further _important_ step would be to have the content value be
configurable.  A large number, say 36000, would be a good default.

This is from httpd.cxx.  My change is between the comments. 

...
response += TITLEFlightGear - ;
response += request;
response += /TITLE;
response += getTerminator();

// Inserted code
response += META http-equiv=\refresh\ content=\1\;
response += getTerminator();
// End Inserted code

response += /HEAD;
response += getTerminator();
...

Note that a short interval is very obnoxious, if one intends on using
the browser to _change_ property values.  The refresh is most useful for
observation purposes.  With a moderate (say 10 sec) interval,
interesting things happen if one does input a change and leave that
window open.  :-)

Best,

Jim A

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RE: [Flightgear-devel] another http suggestion

2005-08-03 Thread Alberico, James F
snip 

 
 I was thinking the other day that a huge win would be to put 
 the update fields in the view of the parent node. Each leaf 
 node displayed could not only show the current value, but 
 also have its own form to update that value. It would really 
 reduce mouse clicks, and you would never have to look at a 
 page with only one value in it, which I consider a huge waste 
 of screen real estate.
 
 I suppose I should try to implement that, when I get some time.
 
 Josh
 

FWIW, I think that's a great idea.

The ability to change all position values (lat/lon/alt), for example, at
once with one click would be especially valuable.

Thanks,

Jim A

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RE: [Flightgear-devel] OpenAL for CygWin

2005-07-20 Thread Alberico, James F
 From: Jon Berndt [mailto:[EMAIL PROTECTED] 

 
  I have placed a compiled tarball of yesterdays OpenAL CVS files @ 
  http://www.vso.cape.com/~nhv/files/cygwin/cyg_openAL.tgz
 
  you might want to test these against the current FGFS 
 before blindly 
  overwriting your currrent installation
 
 Is this distribution modified for use with CygWin as 
 discussed in this thread recently?
 Namely, the _WIN32 - WIN32 issue, as well as the #define MVC?
 

I grabbed Norman Vine's tarball and have finally put sound into a Cygwin
build.  I noticed that there are still two instances of _WIN32 in the
headers:  One is in alu.h, and one is in alut.h.  

For example, in alu.h
...
#ifdef _WIN32
#define ALUAPI
#define ALUAPIENTRY __cdecl
...

I don't know if these are intentional or by oversight.  My first success
was after changing the _WIN32 to WIN32 in those places.  However, I
cannot conclude that change was necessary due to other oversights along
the way on my part.  For example, one must make sure the openal32.dll
used by fgfs.exe is the one distributed in Norman's tarball!  Other
OpenAL versions cause a runtime error.  I was stuck on that one for
awhile.  :-)

Thanks, everyone.

Jim



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RE: [Flightgear-devel] Attaching Views to Other Objects

2005-06-29 Thread Alberico, James F



-Original Message-
From:  Jim Wilson [mailto:[EMAIL PROTECTED]


Hope this helps.

Best regards,

Jim

Yes it does, Jim.   Thanks.

I'll see what I can make happen.

Jim A.




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RE: [Flightgear-devel] Last Driver NVIDIA 7667:==approach lightingrabbit DO NOT Conflict with Graphic Card

2005-06-28 Thread Alberico, James F
 Gerard Robin wrote:
 
  I am Just Ending the test of the last NVIDIA driver 7667 
 june-22 The 
 slowness in FG with VASI as vanished.
 That new driver seems right when working with existing OpenGL 
 functionalities used by FG.
 I just notice a global speed a bit less than before (7664, without 
 VASI).
 Good NEWS. 
   
 
 
 That's great news, thanks for checking this out and reporting back.
 

Tried latest NVidia driver for Quadro Fx 3400.  Better, but still a
problem with VASI/PAPI.

Sitting at KFSO:
7184  8-10 fps with VASI
75 fps without VASI

7718 15-18 fps with VASI
75 fps without VASI

The without VASI is with Gerard's fix that comments out one line.
All cases run with enhanced lighting turned off.

BTW, this is on WinXP.

Jim


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[Flightgear-devel] Attaching Views to Other Objects

2005-06-28 Thread Alberico, James F
Hi,

I'm trying to track down how I can attach a view to another object in
the sim, particularly for a multiplayer aircraft other than the ownship.
I would like to switch to the viewpoint of each of the other guys in
the virtual world.

As documented at http://flightgear.org/Docs/fgfs-viewer-howto.html :


Syntax for the eye position is: 
from-model type=booltrue or false/from-model
from-model-idx type=intmodelnumber/from-model-idx
Syntax for the target or at position used in views of type lookat is: 
at-model type=booltrue or false/at-model
at-model-idx type=intmodelnumber/at-model-idx
-

But I can't find out where the modelnumber comes from, or what it
really means.  All the examples use zero, so I've assumed that was the
ownship.

I've looked through the code and docs, and searched many of the
mailing-list archives, but haven't found any examples or explanations
yet.  A idea of how to use this for models in general, followed by
understanding the implications and current capabilities for multiplayer
otherships would be great.

Any help would be appreciated, even references to archived discussions.
Thanks!

Jim


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RE: [Flightgear-devel] Main Airports Conflict withGraphic Card6600GT !!!

2005-06-22 Thread Alberico, James F
 -Original Message-
 From: Gerard ROBIN [mailto:[EMAIL PROTECTED] 
 Sent: Wednesday, June 08, 2005 1:50 PM
 To: FlightGear developers discussions
 Subject: Re: [Flightgear-devel] Main Airports Conflict 
 withGraphic Card6600GT !!!

  The hardware is able to do it, with the old driver 6229 it can. 
 But the average performance is less, because that driver  
 does not suit to these new GPU with GPL 2. May be a bug in 
 the last NVIDIA driver. 
 I could explain the problem if i was more accurate about GL 
 and that light animation.
  
 --
 Gerard
 
 

For what it's worth, additional info on this thread:

I saw the same bad performance on an Fx 3400 with new driver.  I was not
able to find any properties or run options to alleviate the problem (10
fps or less, when looking at an airfield -- running with enhanced
lighting OFF).

Gerard's fix (comment out the call to get_vasi_lights_root()) worked
great.  All is smooth now.  Thanks, Gerard!

Jim


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[Flightgear-devel] RE: Re: Scenery size constraints

2005-05-27 Thread Alberico, James F
Melchior Franz wrote:

I'm sure he meant boeing.com (hey, Stacie was first!). Now with
Boeing and
Sikorsky on board, where is EADS/Airbus? Come on! We know you are here!
And 
Fokker!? And *cough* Diamond *cough* ...  ;-)

If this community keeps up the excellent work, I'm sure everyone will
jump aboard sooner or later!!

Jim


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RE: RE: [Flightgear-devel] Scenery size constraints

2005-05-26 Thread Alberico, James F
Erik Hofman wrote:

Harald JOHNSEN wrote:
 Alberico, James F wrote:
 
 Hi,

 I have been tracking down the cause of an FGFS access violation that

 occurs when attempting to use 1-arcsec scenery data for a tile 
 generated in TerraGear to have 4 nodes.  Granted, this may be 
 extremely ambitious from a performance standpoint, and may prove to 
 be completely infeasible.  However, I am very interested in knowing 
 the current limits and pushing hard on them.

Hi Jim,

It good to see some big names showing up on the list. This might give 
the project a boost to get to the next level.

You certainly mean Harald, not me, unless you are commenting on the ugly
format of my name here.  :-)

 What I think I've learned so far from debugging:
...
...

At this point Curtis is the one who is most involved in these things.
He 
is attending  the  MathWorks International Aerospace and Defense 
Conference 2005 and will be back tomorrow. It might be best to send him

a private copy of your mail also.

That's a good idea.  Thanks.

Harald JOHNSEN wrote:
 I think that the only side effect will be that your new binary will
be
 incompatible with current scenario files,
 perhaps that changing short to unsigned short could be enought.

Erik Hofman wrote:
Curtis already mentioned he wanted to change the layout of the tiles 
which probably breaks backward compatibility. So if it would be 
necessary this change could be adopted as well.

Thanks, Harald and Erik.  An unsigned short for that item would help me
for my specific purpose.  Curt and others can determine which direction
to take the project.  A key question will be whether 65k or even 32k
nodes far exceeds any reasonable performance expectations for the
foreseeable future.

Jim  

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[Flightgear-devel] Scenery size constraints

2005-05-25 Thread Alberico, James F
Hi,

I have been tracking down the cause of an FGFS access violation that
occurs when attempting to use 1-arcsec scenery data for a tile generated
in TerraGear to have 4 nodes.  Granted, this may be extremely
ambitious from a performance standpoint, and may prove to be completely
infeasible.  However, I am very interested in knowing the current limits
and pushing hard on them.

What I think I've learned so far from debugging:
1.)  The FGFS FGBinObj reads with no errors.
2.)  The access violation occurs during leaf generation.
3.)  The breakage occurs shortly after the texture coordinate index
exceeds the max value of a short (32767) and goes negative.
4.)  The symbols (e.g., tris_tc) that carry the read-in indices are of
type int
5.)   Examination of the TerraGear bin writes, and the FGFS reads reveal
the indices are stored as short types.
6.)   So, my conclusion is the scenery of the 1-arcsec tile is limited
to 32767 nodes.  (or maybe polygons?) And, 
TerraGear will truncate any index above that when writing to the binary
file.

I'm a newbie to TerraGear/FGFS details, so please correct me if I'm
wrong about any of this.

I would appreciate any comments on what mess might result from any
attempt to store/read ints, rather than shorts, to expand the scenery
resolution.  From a performance standpoint, the capacity of the short
type may far exceed anything practical at the present time.  Comments on
that aspect are welcome, too.

Thanks!!

Jim

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