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Hi Colleagues,
How can I determine the orientation angles (theta) of the particle at (x,y,z) in order to calculate the rotation matrix?
Best regards
Hi,
I'm not sure I fully get what you're after, but if you want the angle (and axis) of rotation from a given orientation matrix (that EDEM provides) then I'd recommend a look at :
https://en.wikipedia.org/wiki/Rotation_matrix
specifically the section: "Conversion from rotation matrix to axis-angle"
Richard
