[osg-users] [vpb] geographic to geocentric coordinate transformation

[Elias Tarasov]

Hello, Christian!
Yes, it helped me very much!
The code you posted works, and i also managed to add external FDM engine to calculate and getting data for cessna. Also, i added camera that moved behind cessna and now get a nice view of moving aeroplane, which position and orientation are defined by external physic engine and attached to geocentric coordinates.

Though i still have a problems of how to define the up vector (it seems like eye and center are with respect to ECEF, but the up is somehow with respect to my screen? ). 

But anyway, now thanks to you help i have a room for experiments.

Thank you!

Cheers,
Elias

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http://forum.openscenegraph.org/viewtopic.php?p=64135#64135