Does xvector in mtex refer to the sample coordinate system or the acquisition surface coordinate system?

[xiu-shen]

SF_array(i) = slipSystems(i).SchmidFactor(inv(ori) * xvector);

Does xvector refer to the sample coordinate system or the acquisition surface coordinate system?

[ralfHielscher]

In MTEX both reference frames are assumed to be the same, see EBSDReferenceFrame

Ralf.

[xiu-shen]

I've gone through it and what I understand is that xvector refers to the space coordinate system x

[ralfHielscher]

And how do you think, one can specify a position at the acquisition surface coordinate system?