Re: [Flightgear-devel] tied properties in the context of subscriptions.

[Patrick C. <pat...@gm...>]

As I read through the post and responses, I'm wondering if any of the sets
of copied properties are ad-hoc interfaces or adapters between one part of
the simulation and another.

-p

On Sun, Jul 2, 2023 at 1:24 PM Alan Teeder <ajt...@v-...> wrote:

> There are two main methods used to use JSBSim properties with Flightgear.
>
> 1. Using  /fdm/jsbsim
>
> Internally JSBSim has its own property tree. In this case being discussed
> alpha-deg and beta-deg have the  JSBSim properties  aero/alpha-deg and
> aero/beta-deg.
>
> All JSBSim properties are mapped to Flightgear as /fdm/jsbsim/xxxxxxx
>
> The Flightgear property names are  /fdm/jsbsim/alpha-deg and
> /fdm/jsbsim/beta-deg.
>
>
> 2. Tied Properties
>
> Many, but not all,  JSBsim properties are also tied to Flightgear
> properties. My guess is that this was done for YASim comparability.
>
> Hence we also see /orientation/alpha-deg and /orientation/beta-deg in the
> Flightgear property tree.
>
> When running Flightgear  /orientation/alpha-deg is updated.,
> but/orientation/beta-deg is not . This is probably a bug.
>
> Unfortunately there does not seem to be documentation showing the tied
> property mapping.
>
> For more info see  https://forum.flightgear.org/viewtopic.php?f=49&t=36436
> . You need to scroll down a bit as the topic immediately went off subject,
> but got back to it at
> https://forum.flightgear.org/viewtopic.php?f=49&t=36436#p35551
> <https://forum.flightgear.org/viewtopic.php?f=49&t=36436#p355513>
>
> Alan
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