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Merge commit 'refs/merge-requests/1578' of git://gitorious.org/fg/flightgear into yasimfixes

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Torsten Dreyer 2014-04-04 08:57:12 +02:00
commit efc5c32633
1 changed files with 4 additions and 2 deletions
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6
src/FDM/YASim/Surface.cpp
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@ -225,8 +225,10 @@ void Surface::calcForce(float* v, float rho, float* out, float* torque)
Math::add3(lwind, out, out);
// Reverse the incidence rotation to get back to surface
// coordinates.
out[2] -= incidence * out[0];
// coordinates. Since out[] is now the force vector and is
// roughly parallel with Z, the small-angle approximation
// must change its X component.
out[0] -= incidence * out[2];
// Convert back to external coordinates
Math::tmul33(_orient, out, out);