I'm investigating the possibility of ripping out the horrible
undocumented <special-instrument> hack that the KLN89 uses, and using
the owner-drawn gauge that the weather radar uses instead in order to
render to a texture and become a "normal" instrument.
However, I've got a query about the od_gauge, currently wxRadarBg::init
contains this code snippet:
FGInstrumentMgr *imgr = (FGInstrumentMgr
*)globals->get_subsystem("instrumentation");
_odg = (FGODGauge *)imgr->get_subsystem("od_gauge");
_odg->setSize(512);
where it obtains a pointer to an FGODGauge class from the instrument
manager. This is the only point in the code where any instrument
obtains a pointer to the od_gauge.
My question is, is it safe for the KLN89 to also obtain a pointer to the
same FGODGauge instance in this manner and then use it, or does an extra
instance of FGODGauge have to be created first?
Cheers - Dave
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