[Jsbsim-devel] short term problem

[Jaye B. <jay...@gm...>]

What I have is a large simulation environment that is responsible for clock
management and integration of many different types of components operating
within a mixed discrete event/continuous time execution model. I would like
to control the execution of JSBSim at the base rate of my sim clock. I can
see how to do this with stick and rudder inputs. What I would really like,
is to command the autopilot directly, instead of commanding cockpit control
inputs. The scripting facility seems to be one path toward that sort of
integration. Basically, I would like to periodically change the course of
the a/c (waypoint navigation) with a script but I want the state of the a/c
to update to the current time only...unlike the many scripting examples
contained in the distro. These scripts make complete runs.

One solution I came up with is

1. Script contains a single action.
2. Set the action to run for dt seconds
3. Store the appropriate output in a temp file
4. Use that temp file as the initialization file
5. Increment the clock
6.  Lather, rinse, repeat

This seems fairly inefficient to me, requiring JSBSim to reset itself for
every dt.

I would like to run the Cessna example in this fashion for a demo to my
customers by Tuesday where they will decide on the fixed wing 6dof they will
use. Is there an easier way to do this? Will my proposed method work?

Thanks in advance.

-- 
Wm. Jaye Bass
Torch Technologies
office phone: 256-876-4895