[FieldTrip] mesh realignment

[Dr N.E. Adams]

Dear Fieldtrip Community

I would like to align two brain meshes and I can't figure out how.
Specifically, I would like to align a MEG-coregistered segmented brain 
mesh that has been normalized (mesh_brain) to an atlas cortical mesh 
(mesh_atlas). The two meshes, in this example, are about 20mm off 
alignment with each other in the rostral-caudal dimensnion in the 
attached images and I'd like to correct for this sort of alignment 
issue.

Can I do this with ft_volumerealign()? If I can, I can't figure out the 
settings.

Attempted workaround:
I tried using icp() to get the affine to tranform one to the other, but 
I do not know how to then apply this affine to meshes rather than 
volumes, nor if this has worked. I tried converting the mesh to a 
volume, but this was only partially successful and I'm unclear how to 
convert it back. Thinking this was a rabbit-hole I thought there must be 
an easier solution. Anyone know?

Thank you in advance for you help
Natalie Adams
-------------- next part --------------
A non-text attachment was scrubbed...
Name: mesh_atlas.JPG
Type: image/jpeg
Size: 19417 bytes
Desc: not available
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20200413/b0f82a8e/attachment.jpe>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: mesh_brain.JPG
Type: image/jpeg
Size: 25956 bytes
Desc: not available
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20200413/b0f82a8e/attachment-0001.jpe>