Hi Jihoon,

You can just use read_surf.m, e.g.

[vertices, faces] = read_surf('lh.sphere.reg');

The vertices is a N x 3 matrix. Row 1 corresponds to vertex 1, etc.

--Thomas

On Wed, Mar 14, 2012 at 12:23 PM, Ji hoon Oh <ojihoon@gmail.com> wrote:
> Dear FreeSurfer,
>
> Hi,
>
> I have a label with vertex index, RAS and overlay values, and want to add
> spherical coordinates to them as presented in tksurfer.
>
> I found following archives that are related to this question, but I couldn't
> find any vertex index (number) information in a sphere.reg file.
> (http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg00627.html)
>
> I converted ?h.sphere.reg file into ?h.sphere.reg.asc
> using mris_convert command, and imported it to MATLAB using read_asc.m file
> (without face data).
> They had [x,y,z] coordinates in columns, but did not provide vertex index
> information.
>
> I wonder if there is a way to read the vertex index from a sphere.reg file,
> or there are other methods that read both vertex index and spherical
> coordinates.
>
> Thank you,
> Jihoon Oh
>
>
> --
> ---------------------------------------------------------------
> Jihoon Oh, M.D.
> Ph.D. candidate, Bio and Brain Engineering
> Korea Advanced Institute for Science and Technology (KAIST)
> E-mail: ojihoon@gmail.com
> ---------------------------------------------------------------
>

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