Re: [Flightgear-devel] RFD: FlightGear and the changing state of air navigation

[geneb <ge...@de...>]

On Mon, 3 Jul 2017, Heiko Schulz via Flightgear-devel wrote:

>>> Speaking for the Shuttle, that has very little to do with canvas as such.
>>> There are 11 MDUs on the Shuttle flightdeck, and the way the Shuttle 
> avionics works,
>>> they typically display close to a hundred values each, so that's of the 
> order of ~1000 different parameters that need to be simulated,
>>> fetched and displayed _per update cycle_ (and yeah, most parameters you 
> see are really simulated and not just unchanging text).
>>> If you compare that with showing ~30 different parameters for a simple GA 
> craft, it's naively ~30 times slower for obvious reasons....
>
> I'm aware of that the Space Shuttle is one of the most complex machines ever 
> built, and you simulate a whole lot of it.
> But don't underestimate the complexity of todays avionics for GA!
>
This may help folks understand what the G1000 is all about.
http://static.garmincdn.com/pumac/190-00498-07_0A_Web.pdf
Writing a G1000 isn't that hard.  Writing a *feature complete* G1000 is a 
metric f***ton of work. ;)

> And that's the point:
> Canvas is more than some happy little SVG-objects, which must be drawn- those 
> happy little drawn SVG-Objects must be driven somehow, and that's done by 
> nasal. And those fancy nasal-scripts must simulate or use properties, so that 
> we get those features mentioned above - and all this together costs.
>
> Heiko

Heiko, what video card are you using?

g.

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