Hi, Torsten,
Thanks.
This helped me.
Since, with the fdm, the target is to identify the real time status of the
terrain under, with snow-norm or with rain-norm and the target is to
calculate the aircraft behavior against these parameters, If my
understanding , about your idea, is right , it is better to use the newer
properties /environment/barbaz.
Thus, we don't mind if the values are fictive, coming from the user local
customized weather, or real, coming from metar, or an intermediate value,
due to the time-based interpolation controller, we only mind to use the
ground simulation real time value at the aircraft simulation real time
position.
Doing that, i guess will avoid any difference in between , the visual on
screen , and the calculated ground reaction.
2010/12/21 Torsten Dreyer tors...@t3r.de
Hi,
I just notice some modifications about the snow and rain norm property,
which seems to be exposed twice.
One place, in the /environment directory , which is new; and an other
place in the /environment/metar directory , which is the old usable
place.
I am maintaining a lot of Aircraft, which are using these property ( snow
and rain norm ) within the Aircraft JSBSIM FDM, ground reaction related.
My question:
right now, which place i must refer to ? the old one
/environment/metar/rain or the new one /environment/rain or
both, depending on , real weather in use, yes or no
Won't it be better to get it exposed only once.
The idea behind splitting these is to have the properties
/environment/metar/foobar
represent the weather as reported in the corresponding METAR and the
properties
/environment/barbaz
represent the weather at you current position. These two are not
necessarily
the same. Currently, the values flow from /environment/metar to
/environment
with the time-based interpolation controller in
$FGDATA/Environment/metarinterpolator.xml or any other environment
controller,
like the Local-Weather system from Thorsten Renk.
Currently under development is to have more than one METAR report and be
able
to have lateral interpolation together with timed interpolation. These
reports
will live under /environment/metar[0], /environment/metar[1], etc. probably
ordered by distance to current position.
For the time being, you should be safe using snow and rain from
/environment/metar but in the long run, you might have to think about which
property to use: current position or at a certain airport.
Hope this helps
Torsten
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