Consider using external quaternion library about defdap HOT 3 CLOSED

I'm not completely against this but it will be a lot of work to move over to an external library and probably need restructuring of a lot of the project.

I generally only use the quaternion objects for calculations including a few orientations, where the inefficiency of python doesn't really matter. Any calculations including all the orientations in a grain or map, for example, have been manually vectorised using arrays containing the components of all the quaternions (see Quat.calcSymEqvs or ebsd.Map.findBoundaries) and I don't think you'll see much of a performance improvement over those (but I'm happy to be proved wrong).

from defdap.

OK - i'll have a more detailed look after file writers.

from defdap.

This is way too much work to move over. Now I look carefully there is loads of logic in the Quat class. Silly Peter.

from defdap.