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-rw-r--r--tracker-pt/ftnoir_tracker_pt.cpp11
1 files changed, 7 insertions, 4 deletions
diff --git a/tracker-pt/ftnoir_tracker_pt.cpp b/tracker-pt/ftnoir_tracker_pt.cpp
index 97404ec4..c3b6c6e3 100644
--- a/tracker-pt/ftnoir_tracker_pt.cpp
+++ b/tracker-pt/ftnoir_tracker_pt.cpp
@@ -171,10 +171,13 @@ void Tracker_PT::data(double *data)
const vec3& t = X_GH.t;
// extract rotation angles
- double alpha, beta, gamma;
- beta = atan2( (double)-R(2,0), (double)sqrt(R(2,1)*R(2,1) + R(2,2)*R(2,2)) );
- alpha = atan2( (double)R(1,0), (double)R(0,0) );
- gamma = atan2( (double)R(2,1), (double)R(2,2) );
+ auto r00 = (double)R(0, 0);
+ auto r10 = (double)R(1,0), r20 = (double)R(2,0);
+ auto r21 = (double)R(2,1), r22 = (double)R(2,2);
+
+ double beta = atan2(-r20, sqrt(r21*r21 + r22*r22));
+ double alpha = atan2(r10, r00);
+ double gamma = atan2(r21, r22);
constexpr double rad2deg = 180/M_PI;