Re: [Flightgear-devel] [Jsbsim-devel] AI Carrier with Aircraft, and the last JSBSim version

2008-08-25 Thread gerard robin
On lun 25 août 2008, Jon S. Berndt wrote:
  Hi Gerard,
 
  I think the ultimate solution would be for FlightGear to move this code
  out of the FDM's and into the FDM interface class.
 
  Dave

 I firmly agree: determining carrier location and orientation should not be
 an FDM specific function. This needs to be more configurable from the
 FlightGear side, so any FDM can take that information and do with it what
 it needs to to do cat/hook ops.

 Jon



YES, the problem won't be  technical, but mainly a policy problem.

Since that feature is included into YASim , I fear  the answer (again, i got 
it..),  for model which want carrier features, YASim  answer the 
request  :).

I hope that the prize to do it,  will not be too high.

Cheers



-- 
Gérard
http://pagesperso-orange.fr/GRTux/

J'ai décidé d'être heureux parce que c'est bon pour la santé. 
Voltaire 


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[Flightgear-devel] [Jsbsim-devel] AI Carrier with Aircraft, and the last JSBSim version

2008-08-24 Thread gerard robin
Hello,

There is,  into the recent FDM JSBSim update, a new huge feature  with is 
the External_Forces, this gives us, a lot of new facilities for model 
development, like mooring rope, chutes, catapults, hook, mules  and so on.
Each external_force can be defined BODY or LOCAL.

Working on an Aircraft (Crusader) with Carrier (Foch) I am looking for the 
right solution to get the positions of the  Carrier with its components 
catapults and wires.

Into FG source, we can find some code which gives, regarding the AI, the 
positions., global x-y-z, and lat lon.   I have found it  for Carrier and 
Tankers (very useful for refuel), and probably there for any AI models.  
However there is nothing  regarding the Carriers components, catapults and 
wires positions.
Into YASim the positions of each component, catapults and wires positions are 
calculated.

In order to get these data into the JSB FDM, the crude  solution could be, to 
include the yasim calculation part into JSBSim.

I feel that won't be the more elegant solution, and i am not sure that Jon 
would agree on it.  :)

Though, i am not aware, about the FG source organisation, i dare that 
question:

Won't it be possible to calculate and to give on request ( when we are close 
to a  Carrier ) these data.
I mean, the cats and wires positions ?

I guess, if we had these values it should be possible to process them into 
JSBsim 
in order to get an achieved Carrier Landing/takeOFF simulation.
At least , easier for Jon to include that simulation into JSBSim.

I can be wrong, it could be many other better approach

Cheers


-- 
Gérard
http://pagesperso-orange.fr/GRTux/

J'ai décidé d'être heureux parce que c'est bon pour la santé. 
Voltaire 


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