Hi freesurfers,

I'm looking at the flattened fsaverage surface and trying to figure out
how to select a number of vertices that all lie on the same line.
I would like to make this an automatic process so I'm trying to figure out
how the RAS coordinates of these vertices relate to each other. I plan to
then make a label file in which these vertices are listed.

Please let me know if you have any insight into how this might be done.

Thanks,

Cesar Echavarria