Add ability to extract rotation angles from rotation matrices. Fix rotations around multiple axes. #978
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Version 6.10.0.
This PR adds the ability to extract rotations around the X, Y, and Z axes via the new
calcfrom
keyword of therotate
command:This allows users to e.g. extract rotations around each axis from rotation matrices generated by the
rms
command.This PR also fixes a bug in the
rotate
command where rotations were incorrect if attempting to rotate around more than 1 axis (i.e. rotation around X is ok, but rotation around XY would give incorrect results).Also adds tests and updates the manual entry.