External Email - Use Caution The registration registers the meshes, but it does not alter the number of vertices in them. There is no 1-to-1 correspondence between the vertices of the 2 meshes.
May I ask why you need this? What do you want to achieve? Tim > On May 11, 2020 at 2:11 PM Ian <ian@mode7.games> wrote: > > > External Email - Use Caution > > I'm just going to try this again, but this time with a different command: > > mris_apply_reg --src-xyz > /usr/local/freesurfer/subjects/fsaverage/surf/lh.white --trg > /home/ian/lh_reg.white --streg > /usr/local/freesurfer/subjects/fsaverage/surf/lh.sphere.reg > /obd-fs/proc/my_subject/freesurfer/surf/lh.sphere.reg" > > This gives me the same issue - fsaverage/surf/lh.white has 300k+ points > in it, and the output of this command has fewer than half that. > > I do not understand what kind of registration would reduce the number of > points. What is the relationship between the first point in --src_xyz > file and the first point in the output registered file? If I halved the > number of points in the input, would I expect the output to be half the > size? Or less? > > I'm sure there's a simple explanation that I don't have my head around > just yet - thank you for your patience. > > Ian > > > On 07/05/2020 22:45, Douglas N. Greve wrote: > > Isn't that what you got from the mri_surf2surf command? > > > > On 5/7/2020 3:08 PM, Ian Hardingham wrote: > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- Dr. Tim Schäfer Postdoc Computational Neuroimaging Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer