Using a misorientation vector in specimen reference frame #2169
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angus0997
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Hi Everyone,
I would like to define a misorientation vector, as used in this paper: https://doi.org/10.1107/S1600576719004035.
The misorientation vector should link two orientations in the specimen reference frame, and be used to convert the one orientation into the other. The norm of this vector should be the misorientation angle, and the direction of this vector should be the misorientation axis, in specimen coordinates.
Working in the crystal reference frame, we can do the following:
ori1=ebsd(1).orientations;
ori2=ebsd(2).orientations;
mori=inv(ori1)*ori2;
And now
mori
defines the misorientation in the crystal reference frame, and can be used to convert ori1 to ori 2:ori1*mori = ori2;
.Working in the specimen reference frame, we can do the following:
mori_axis = axis(ori1,ori2) % Misorientation axis in Specimen frame
mori_angle = angle(ori1,ori2)/degree % Corresponding misorientation angle
Now a misorientation vector can be defined:
mori_vec = mori_angle * mori_(axis)
My question is: How can this misorientation vector be used to convert ori1 to ori2?
Best,
Angus
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