Re: [Flightgear-devel] Helipad thresholds

[Florent R. <f.r...@fr...>]

Hi,

James Turner <ja...@fl...> wrote:

> In *principle* (modulo any bugs) custom apt.dat can add or replace runway data
> from the base apt.dat; I can’t recall if removing runways is possible.

I think it is, because for a given airport, the first apt.dat snippet
found in $FG_SCENERY order that has data for this airport provides *all*
the data for said airport:

  https://sourceforge.net/p/flightgear/flightgear/ci/next/tree/src/Airports/apt_loader.cxx#l163

IOW, if data for the same airport is found in later apt.dat snippets, it
is ignored (skipAirport is true in these cases).

>> That said, if there is a default threshold.xml for the airport, will that
>> supercede my custom apt.dat?
>
>
> Yes, I think right now the scenery overlay XML files are always processed, so
> this might cause some troubles. Unless we have a way to suppress loading the
> XML files when using a custom apt.dat, and I would need to dig into the code
> further, to answer that.

I believe there is no such way: I probably didn't know about
*.threshold.xml files yet (and *.twr.xml, *.ils.xml...) when I added the
possibility of gathering apt.dat data from scenery folders.

Regards

-- 
Florent