I've added the particle system to FlightGear. Unfortunatly, when the object it's
requires a vector that defines the cartesian coords into the world. I've watched into
code and I've found that the conversion from geodetic to cartesian coords it's done
a class defined by SimGear that I cannot use.
There's a way to get the cartesian coords of the airplane having the geodetic coords?
I've used the function "sgGeodToCart" but it doesn't works.
I can't do the same as the Ballistic object because the ssgaParticleSystem calculates
position of every particle using the coords given at the creation of the object.
Additionally, there's a way to load a texture without using the "sgLoad3DModel"
loads even an object)? The particles I've created are visible, but the texture,
the "ssgSimpleState" class, is missing.
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