Re: [Flightgear-devel] AI flights...

2007-03-09 Thread Dene

 By the way , I've also enabled the Victoria ferries , nice addition . I 
 added a screenshot to my webpage of one leaving Port Angeles... I'll 
 probably add a Vancouver route too 

   
Aww...com'on Syd...what's the URL?...since I can't see Vivians 
enhancements to the Picton ferries I would like to see the BC ones.
;-)
Dene
NZWN

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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread Jon S. Berndt
 Is there a way to check which changes were applied between the time it did
 work and the time it didn't?

 Jon

It sort of seems like the starter doesn't have enough power to start the
engine.

Jon


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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread Jon S. Berndt
 It sort of seems like the starter doesn't have enough power to start the
 engine.

 Jon

OK, I adjusted the starter - not sure if that's correct, but it seemed to
start the engine. This is the diff with what's in JSBSim CVS:

-- start --

RCS file: /cvsroot/jsbsim/JSBSim/src/models/propulsion/FGPiston.cpp,v
retrieving revision 1.9
diff -r1.9 FGPiston.cpp
201c201
   StarterHP = sqrt(MaxHP) * 0.2;
---
   StarterHP = sqrt(MaxHP) * 0.4;
583c583
 HP = StarterHP + ((480 - RPM) / 10.0);
---
 HP = StarterHP + ((480 - RPM) / 8.0);
596c596
   //cout  Power =   HP  '\n';
---
 //  cout  Power =   HPRPM =   RPMRunning =  
RunningCranking =   Cranking  endl;

-- end --

Maybe this will help.

Jon


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Re: [Flightgear-devel] AI flights...

2007-03-09 Thread Martin Spott
sydsandy wrote:

 A new scenery rebuild on the way ?

To my knowledge nobody mentioned this. Certainly there _will_ be a
scenery rebuild some day, but I don't know of any fixed date,

Martin.
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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread Jon S. Berndt
 OK, I adjusted the starter - not sure if that's correct, but it seemed to
 start the engine. This is the diff with what's in JSBSim CVS:

Strange thing about the an-2 is that now I can get the engine to generate
thrust, but it never develops a velocity - never accelerates.

Jon


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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread AJ MacLeod
On Friday 09 March 2007 13:15, Jon S. Berndt wrote:
  OK, I adjusted the starter - not sure if that's correct, but it seemed to
  start the engine. This is the diff with what's in JSBSim CVS:
 Strange thing about the an-2 is that now I can get the engine to generate
 thrust, but it never develops a velocity - never accelerates.

Hi Jon,

Yeah, this was kind of what we were talking about :-)

The engine started OK before (at least here) - it's just that the a/c would'nt 
drag itself even an inch forwards.  It did fly when it was committed first - 
unfortunately we don't have a definite idea of when it stopped working.

Cheers,

AJ

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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread Martin Spott
AJ MacLeod wrote:

 The engine started OK before (at least here) - it's just that the a/c 
 would'nt 
 drag itself even an inch forwards.  It did fly when it was committed first - 
 unfortunately we don't have a definite idea of when it stopped working.

Did anyone bother browsing the changes to FDM/JSBSim ?

Martin.
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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread Jon S. Berndt
 Hi Jon,
 
 Yeah, this was kind of what we were talking about :-)
 

Oops.  OK, are there problems with any other propeller aircraft?

Jon


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[Flightgear-devel] Placing objects with UFO

2007-03-09 Thread Didier Fabert
Hi all,

is there a possibility to rotate objects (i can only place and translate them 
by the UFO feature).

thanks in advance

didier.

-- 
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KFreeFlight project : A FlightGear GUI-Frontend designed for KDE users
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Re: [Flightgear-devel] Placing objects with UFO

2007-03-09 Thread sydsandy
Didier Fabert wrote:
 Hi all,

 is there a possibility to rotate objects (i can only place and translate them 
 by the UFO feature).

 thanks in advance

 didier.

   
Hi Didier, hit the TAB button , that brings up a menu for adjusting 
position, heading , etc...
Cheers,
Syd

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[Flightgear-devel] Scenery rebuild...

2007-03-09 Thread sydsandy

Martin Spott wrote:

sydsandy wrote:

  

A new scenery rebuild on the way ?



To my knowledge nobody mentioned this. Certainly there _will_ be a
scenery rebuild some day, but I don't know of any fixed date,

Martin.
  



Oh , I was referring to this 


You need to rebuild only the tiles wich have boundaries with the airport 
aera to see in FlightGear the result of taxidraw design. Doing so can 
add some small glitches at the boundary of the new tiles and the old 
ones, but don't wory the whole scenery will be rebuilt for the next release.


Good luck Syd  ;) 


Alexis





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Re: [Flightgear-devel] Scenery rebuild...

2007-03-09 Thread Martin Spott
sydsandy wrote:
 Martin Spott wrote:
  sydsandy wrote:

  A new scenery rebuild on the way ?
  
 
  To my knowledge nobody mentioned this. Certainly there _will_ be a
  scenery rebuild some day, but I don't know of any fixed date,

 Oh , I was referring to this 

 [...], but don't wory the whole scenery will be rebuilt for the next release.

Yup, but this doesn't say that the rebuild is alread on the way.

Sorry - I hope we'll get there better sooner than later. Several (few)
people are preparing for providing regular updates to the scenery,
basing on the most recent airport, landcover and elevation data. This
is still in preparation phase, though. Please don't ask for an ETA,

Martin.
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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread Erik Hofman
Jon S. Berndt wrote:
 Hi Jon,

 Yeah, this was kind of what we were talking about :-)

 
 Oops.  OK, are there problems with any other propeller aircraft?

It shouldn't be, I testes a lot of aircraft before committing the code. 
Could be the AN-2 slipped my attention though.

Erik


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Re: [Flightgear-devel] [Fwd: FSweekend 2007]

2007-03-09 Thread Robin van Steenbergen
Martin Spott schreef:
 Yep, same formula, but with improvements in the details. :-)
   

 More beer ?  :-)
   Martin.
   

For the least part. But I think I will be manninng our own Project 
Learjet stand this year. I'll be sure to drop by.

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Re: [Flightgear-devel] Textranslate Step and Scroll

2007-03-09 Thread Jim Wilson
Hi Everybody,


Just to clarify, I wrote the textranslate and texrotate animations (they are 
animations) 
while doing the displays for the 747.  They are for sliding and rotating 
texture mappings 
on an 3D object, and have nothing per se to do with digits.  The first problem 
I was trying 
to solve was sliding the ASI and Altitude tapes on the PFD.  Then it was the 
rose animation.

The problem of producing the alpha and digital displays (it was never about 
numbers) had been dogging me, and in the end I never got around to really 
solving the issue.  It just so happend that I was able to use the texture 
translation for placing numeric values by creating a texture that had a bunch 
of digits and sliding it around.  By adding the step parameter I was able to 
make it either scroll smoothly like the altitude value or just snap the digit 
in place as on most digital displays.  IIRC the IAS display also has a sort of 
odometer drum behavior even though it is a flat electronic display.  Note 
that the animations were also used for displaying some alphanumeric NAV data.

Essentially, I'm saying that Andy was right.  Also, there really was no 
intention to handle fractional numeric values or digits for that matter.  It 
just happened that other modelers picked up on the technique, as there was no 
other method available,  and it went quite a bit farther than was ever intended.

In that context, the addition of the bias tag doesn't really make a whole lot 
of sense, but if it helps someone out, that's fine.  These functions are a 
useful way to do all kinds of things with sliding and rotating textures,  but 
they are a very cumbersome way of doing  alphanumeric data displays.


Best,

Jim


 -Original Message-
 From: Ron Jensen [EMAIL PROTECTED]
 Sent: Friday, 9. Feb 2007 21:34 -0500
 To: FlightGear developers discussions flightgear-devel@lists.sourceforge.net
 Subject: Re: [Flightgear-devel] Textranslate Step and Scroll
 
 On Fri, 2007-02-09 at 14:00 -0500, John Denker wrote:
 
  I come to slightly different conclusions.  The main point of
  difference is that I think it would be better to change the
  code to establish a reasonable default scroll value, rather
  than rampaging through all the existing instruments to add
  scroll statements.
  
  Here's my reasoning, followed by my more-detailed conclusions:
  
  1) First of all, the whole apply_mod() concept is delightful if
  we are trying to implement an analog drum type of readout, such
  as used on tach-hour meters, Hobbs-hour meters, and automobile
  odometers in the pre-electronic age.
 
 Agree.
 
  2) In contrast, the apply_mod() concept is conspicuously unhelpful
  for digital readouts.
  
2a) For one thing, for an N-digit readout, it requires the user to
 write nearly the same code N times in the .xml file.  This is
 laborious and error-prone at coding time, and inefficient at
 runtime.
 
 Agree. 
 
 I doubt apply_mod() was ever intended for digital readouts.
 I suspect it was just pressed into service without much thought.
 Most particularly, I suspect it was never intended to be used
 with a zero scroll value.
  
 The scroll value is the answer to a question that should never
 get asked in the context of a digital display.
  
 Treating the kx165 display as an animation problem is absurd.
 You can animate a mechanical drum display.  You don't animate
 the digits in a digital display.
 
 Agree.
 
2b) Secondly, it would be very hard to make the apply_mod() code
 numerically stable, except for integers as noted below.
  
 The fundamental problem is that it makes decisions on individual
 digits in isolation.  Rounding decisions concerning the Nth digit
 are made in ignorance of decisions concerning lower-order digits.
 This is a deep-seated problem in the design.
 
 This is the point of my introduction of a bias, or pre-apply_mod offset.
 If offset and factor were applied before apply_mod this function would
 be more user-friendly.  It allows the designer to make the rounding
 decision.  It may not be in the familiar format of %0.2f but
 bias0.005/bias, but it acomplishes the same thing.
 
  3) The apply_mod() code works fine for integers.  One way to make
  the currently-broken instruments work correctly would be to rewrite
  them to use integer kHz rather than fractional MHz.
  
  Note that 0.1 cannot be represented exactly in IEEE floating point.
  You are stuck with this fact;  there is nothing you can do about
  it.  According to my desk calculator,
  1 - .1 - .1 - .1 - .1 - .1 - .1 - .1 - .1 - .1 - .1 =  1.38778e-16
  
  In contrast, reasonable-sized integers can be represented exactly.
  
  4) Converting a number to a decimal numeral is a Comp Sci 101
  homework problem.  The solution in apply_mod() is emphatically not
  the textbook solution.
 
 I was going to lecture you on the issues with IEEE floating point
 representation, but decided we both probably had 

Re: [Flightgear-devel] Scenery rebuild...

2007-03-09 Thread sydsandy
Martin Spott wrote:
 sydsandy wrote:
   
 Martin Spott wrote:
 
 sydsandy wrote:
   

   
 A new scenery rebuild on the way ?
 
 
 To my knowledge nobody mentioned this. Certainly there _will_ be a
 scenery rebuild some day, but I don't know of any fixed date,
   

   
 Oh , I was referring to this 

 [...], but don't wory the whole scenery will be rebuilt for the next release.
 

 Yup, but this doesn't say that the rebuild is alread on the way.

 Sorry - I hope we'll get there better sooner than later. Several (few)
 people are preparing for providing regular updates to the scenery,
 basing on the most recent airport, landcover and elevation data. This
 is still in preparation phase, though. Please don't ask for an ETA,
   
Martin.

I wasn't asking for an ETA , and didn't mean soon, I didn't realize the 
current scenery was going to be rebuilt at all... guess I should watch 
my wording :).Just hoping that I didn't have to mess with Terragear , 
wishful thinking.
Oh well 
I would like to fix the Canada airports with the latest Aerodrome charts 
, but I hear it could take a while if submitting to Xplane . but 
then I suppose the scenery has to be regenerated anyway ...
I checked the custom scenery page and there seemed to be some issues 
there , so I'm not sure what direction to go 
Cheers,
Syd

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Re: [Flightgear-devel] Scenery rebuild...

2007-03-09 Thread Martin Spott
Hi Syd,

sydsandy wrote:

 I wasn't asking for an ETA , and didn't mean soon, I didn't realize the 
 current scenery was going to be rebuilt at all...

Ah, certainly it will, but in the past this didn't happen too often.
We're trying to 'fix' that 

 I would like to fix the Canada airports with the latest Aerodrome charts 
 , but I hear it could take a while if submitting to Xplane . but 
 then I suppose the scenery has to be regenerated anyway ...
 I checked the custom scenery page and there seemed to be some issues 
 there , so I'm not sure what direction to go 

Which are the issues you encounter with the custom-scenery pages ? I
know the're getting a new layout these days and are - as most web pages
- a bit behind. Still they remain 'valid'.
Submitting airports to Robin's airport database has been pretty smooth
for me in the past. Yet it appears to me that it takes Robin some time
to get used to your name  ;-)

In the future we're trying to provide updates to the scenery if airport
layouts and/or other stuff has changed. Please make sure you don't
violate any copyright when taking aiport layouts from aerodrome charts.
I have The Bottlang at home an I'm pretty sure the copyright
prohibits creating FlightGear airfields from these charts.

Martin.
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Re: [Flightgear-devel] Scenery rebuild...

2007-03-09 Thread sydsandy
HI guys , I didn't think about the possible copyright issues with 
aerodrome charts , as I simply use them as a background in TaxiDraw to 
realign and correct existing mistakes . I'll look into that right away 
before I do anymore repairs
Concerning Terragear , I suspect its a dependancy error , I get:
coverage,hxx:54: error: extra qualification 'VpfCoverage::' on member 
'VpfCoverage'
Im using Xubuntu 6.10 (debian based) ...

As far as the custom scenery page , I saw  a notice that the current 
scenery couldnt be used in Flightgear so downloads were suspended for 
now  or something to that effect .
Anyway , back to work (on Flightgear ):)
Cheers,
Syd

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Re: [Flightgear-devel] Scenery rebuild...

2007-03-09 Thread Didier Fabert
Le Saturday 10 March 2007 02:18:15 sydsandy, vous avez écrit :
 HI guys , I didn't think about the possible copyright issues with
 aerodrome charts , as I simply use them as a background in TaxiDraw to
 realign and correct existing mistakes . I'll look into that right away
 before I do anymore repairs
 Concerning Terragear , I suspect its a dependancy error , I get:
 coverage,hxx:54: error: extra qualification 'VpfCoverage::' on member
 'VpfCoverage'
 Im using Xubuntu 6.10 (debian based) ...

 As far as the custom scenery page , I saw  a notice that the current
 scenery couldnt be used in Flightgear so downloads were suspended for
 now  or something to that effect .
 Anyway , back to work (on Flightgear ):)
 Cheers,
 Syd

simple
in the source/src/Lib/vpf/coverage.hxx replace
-  VpfCoverage::VpfCoverage (const VpfCoverage coverage);
+  VpfCoverage (const VpfCoverage coverage);

now it should working

didier.
-- 
Didier Fabert
[EMAIL PROTECTED]
KFreeFlight project : A FlightGear GUI-Frontend designed for KDE users
http://kfreeflight.sourceforge.net

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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread Bill Galbraith
 

 To me , the last JSBSim FG CVS update is right, I can start 
 and fly every propeller Aircraft,  but the An2 which does not 
 take off (not enough power to take off) , it can fly only if 
 we launch it from altitude  (enough power to fly).

Do the props have pitch to them? Do you have to set condition levers?

Bill


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Re: [Flightgear-devel] Textranslate Step and Scroll

2007-03-09 Thread Ron Jensen
On Fri, 2007-03-09 at 15:18 -0500, Jim Wilson wrote:
 Hi Everybody,
 
 
 Just to clarify, I wrote the textranslate and texrotate animations (they are 
 animations) 
 while doing the displays for the 747.  They are for sliding and rotating 
 texture mappings 
 on an 3D object, and have nothing per se to do with digits.  The first 
 problem I was trying 
 to solve was sliding the ASI and Altitude tapes on the PFD.  Then it was the 
 rose animation.
 
 The problem of producing the alpha and digital displays (it was never
 about numbers) had been dogging me, and in the end I never got
 around to really solving the issue.  It just so happend that I was
 able to use the texture translation for placing numeric values by
 creating a texture that had a bunch of digits and sliding it around.
 By adding the step parameter I was able to make it either scroll
 smoothly like the altitude value or just snap the digit in place as on
 most digital displays.  IIRC the IAS display also has a sort of
 odometer drum behavior even though it is a flat electronic display.
 Note that the animations were also used for displaying some
 alphanumeric NAV data.
 
 Essentially, I'm saying that Andy was right.  Also, there really was
 no intention to handle fractional numeric values or digits for that
 matter.  It just happened that other modelers picked up on the
 technique, as there was no other method available,  and it went quite
 a bit farther than was ever intended.
 
 In that context, the addition of the bias tag doesn't really make a
 whole lot of sense, but if it helps someone out, that's fine.  These
 functions are a useful way to do all kinds of things with sliding and
 rotating textures,  but they are a very cumbersome way of doing
 alphanumeric data displays.
 
 
 Best,
 
 Jim

They are very cumbersome for alphanumerics, but they work.

In the step animation, offset and factor are applied post-step.  The
bias act as a pre-step offset.

So:
(step(Property)+offset)*factor

Becomes:
(step(Property+bias)+offset)*factor

I thought that might be a useful tag to have in the textranslate toolbag
as well as solving an immediate problem I had.  I also had in mind
adding a pre-step factor tag as well, but never did...  


That reminds me, I need to update models-howto to add the bias tag...

Thanks,

Ron




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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread Jon S. Berndt
 How many RPMS does the engine get when you try to start it?

 This should not be so hard. Did anyone personally ever fly this aircraft?

 Jon

If I set up the engine to look like this, the aircraft seems to fly:

piston_engine name=ASH-62IR
  minmp unit=INHG  6.0 /minmp
  maxmp unit=INHG 41.4 /maxmp
  displacement unit=IN3 1823.00 /displacement
  maxhp1800.00 /maxhp
  cycles 2.0 /cycles
  idlerpm 400.0 /idlerpm
  maxthrottle1.0 /maxthrottle
  minthrottle0.2 /minthrottle
/piston_engine

Obviously, the HP power level is wrong, but the piston engine model may not
be scaled well for larger engines.

Jon


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[Flightgear-devel] my screenshots

2007-03-09 Thread sydsandy
Aww...com'on Syd...what's the URL?...since I can't see Vivians 
enhancements to the Picton ferries I would like to see the BC ones.
 ;-) 
Dene
NZWN


Hi I tried to reply earlier , your emails get rejected by the server for some 
reason ,
anyway trying again ... my webpage is http://members/shaw.ca/sydadams


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Re: [Flightgear-devel] my screenshots

2007-03-09 Thread sydsandy
sydsandy wrote:
 Aww...com'on Syd...what's the URL?...since I can't see Vivians 
 enhancements to the Picton ferries I would like to see the BC ones.
  ;-) 
 Dene
 NZWN


 Hi I tried to reply earlier , your emails get rejected by the server for some 
 reason ,
 anyway trying again ... my webpage is http://members/shaw.ca/sydadams
   
oops , typo , thats http://members.shaw.ca/sydadams

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Re: [Flightgear-devel] Scenery rebuild...

2007-03-09 Thread Martin Spott
sydsandy wrote:

 Concerning Terragear , I suspect its a dependancy error , I get:
 coverage,hxx:54: error: extra qualification 'VpfCoverage::' on member 
 'VpfCoverage'

You don't have to use VPF coverage anymore. TerraGear in the current
state as in CVS, and I _guess_ this counts for the latest release as
well, can read the coverage from shapefiles. Shapefile covering the
whole globe is available here:

  ftp://ftp.ihg.uni-duisburg.de/FlightGear/TGShapes/

  as mentioned at:

  http://www.custom-scenery.org/

on the Landcover-DB pages.
If you don't want to download the complete packages then I'd provide a
smaller package to you of limited size - you just have to give me
lat/lon of the corners of the desired area   I remember Ralf
Gerlich already mentioned that procedure on this list just few days
ago.

 As far as the custom scenery page , I saw  a notice that the current 
 scenery couldnt be used in Flightgear so downloads were suspended for 
 now  or something to that effect .

Well, these comments belong to a certain context - you should read that
one as well,

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

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Re: [Flightgear-devel] An2 problems

2007-03-09 Thread Martin Spott
Jon S. Berndt wrote:

 This should not be so hard. Did anyone personally ever fly this aircraft?

BTW, there's been a thread of almost 60 postings on the AN-2, about
first or second week in November - that one was really hard to miss.
Things like hardcoded min rpm for piston engines in JSBSim had been
discussed there. Does nobody remember ?

Martin.
-- 
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