My parent grain construction is making parent grain outside of the indexed region

[Nabila-Ali-4432]

I have an .ang file containing FCC Fe and body-centered cubic (BCC) regions. I want to remove all other phases and then reconstruct the parent BCC phases, considering FCC Fe as the child phase. However, the parent phase is being reconstructed in the non-indexed zones. I wasn’t able to attach the .ang file, so I have attached the dataset in .docx format instead.

I’m interested in reconstructing the parent BCC phase using the orientation relationship (OR):

BCC {011} || FCC {111}
BCC <1 -3 3> || FCC <2 1 -3>

with a tolerance angle of 5°.

I have also attached the code I am currently using in .docx format. Please let me know what you think and whether there are any issues with my approach.

Thanks!

GitHub code.docx
Scan1 aligned_Cu_Removed_CI_0.1.docx