Application previously established orientation relationship to another ebsd much smaller map of the same material

[syarmolenko]

This is very common and frequently appearing problem. I have established OR from good quality and relatively big martensite map, but I need to work with large number of small maps from the same material and sample that are small for reconstruction from itself. I need to estimate does they have parent grain boundaries and roughly which orientations of parent austenite there. I am looking for simplified solution function like newParentEBSD=jobRebuild(newEBSD, oldjob), where is oldjob - is job variable from big map of the same material and newEBSD is small map that need to be recalculated pixel-by-pixel into parent orientations w/o optimization step. I guess it was already done by someone because it is very common task.

[Tijmenvermeij]

I'm not sure what you're exactly after, but it seems like you are under the impression that determining the OR makes it possible to resolve all parent grains without a new reconstruction, which is not true. An accurate OR (for your material) is very useful to get good reconstructions, but a reconstruction is still necessary, even for smaller maps.

What you can do is perform your full reconstruction on a large dataset (including optimization of OR), and then use that OR for reconstruction of a smaller dataset, something like:

% extract OR from oldjob
OR = job.p2c;
% assign old p2c to new job
newJob.p2c = OR;

And then you can proceed with the reconstruction of the small dataset