Hi,

As stated, I am using the particle analyser function in BoneJ. I am fitting particles with best-fit ellipsoids and I am interested in how these ellipsoids are oriented in space. One of the options allows me to keep track of the unit vectors of this ellipsoid. I am confused as to how they are displayed in results.

The documentation says that the corresponding output is a list of six vectors the following way: V00 - V22: elements of the 3×3 rotation matrix of the best-fit ellipsoid. I do not know what a 3×3 rotation matrix is. I suspect that this set of vectors that describe the Major axis, intermediate axis, and minor axis respectively, however this isn’t clear from the documentation.