You can use something like mri_surf2surf --s subject --src-area midsurf --hemi --trgval lh.area.midsurf run with --help to get examples
On 5/14/2019 10:42 AM, Bruce Fischl wrote: Hi Tim
not sure about area (Doug might have something), but for curvature you can do:
mris_curvature -w lh.area.midgray
this will create mean (*.H) and Gaussian (*.K) curvature files. You might add a bit of smoothing with e.g. -a 5, which is what we do by default when we create the [lr]h.curv files. If we don't have something for area I'll put something together for you and you can grab it from dev
cheers Bruce
On Tue, 14 May 2019, Tim Schäfer wrote:
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Dear list,
I have created a custom surface at 50% thickness between the white and pial for my subjects (`mris_expand -thickness lh.white 0.5 lh.graymid`).
Is there a way to compute measures like curv and area for this surface using FreeSurfer tools?
An example to clarify: I would like to get a file named lh.area.midgray for my new midgray surface, just like I have lh.area and lh.area.pial for the white and pial surfaces, respectively.
I have checked the recon-all devtable [1] and it looks like `mris_make_surfaces` is used to compute these measures. But it is not clear to me whether I could use it for a custom surface as well (and if so, how).
Best,
Tim
[1] https://surfer.nmr.mgh.harvard.edu/fswiki/ReconAllTableStableV6.0
-- Dr. Tim Schäfer Postdoc Computational Neuroimaging Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
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