Dear Freesurfer developers,
I am trying to replicate mris_divide_parcellation for mne-python (https://github.com/mne-tools/mne-python/pull/1085). I think I am doing the same as the MRISdivideAnnotationUnit function (https://github.com/neurodebian/freesurfer/blob/master/utils/annotation.c#L47...), but the result still looks different. Could someone point out how exactly the split is done, and if there are any steps in addition to the function? Are there any measures that are taken when the split would result in two disconnected regions belonging to the same label? And what surface is the split performed on (I would assume that would be “white”)?
Thank you!
Christian