David Megginson wrote:## Advertising

I've thought of a simpler way to approach this problem. Let's say

that I have a plane and the three Euler angles of rotation, phi,

theta, and psi (roll, pitch, and yaw). Given those three angles, I'd

like to determine which direction around the z axis is most directly

uphill and how steep the hill is.

Hmmm, that's a good mind bender ... I'm still thinking ... linear algebra was *sooo* long ago ... :-)

Hmmm, that's a good mind bender ... I'm still thinking ... linear algebra was *sooo* long ago ... :-)

Curt.

-- Curtis Olson http://www.flightgear.org/~curt HumanFIRST Program http://www.humanfirst.umn.edu/ FlightGear Project http://www.flightgear.org Unique text: 2f585eeea02e2c79d7b1d8c4963bae2d

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