---------- Forwarded message ----------
From: fatma zribi <zribi.fa...@gmail.com>
Date: 2013/7/11
Subject: Re: How to use read_curv?
To: Bruce Fischl <fis...@nmr.mgh.harvard.edu>
i have used read_surf to read ?h.white data. Now i would like to use curv
and sulc file of FreeSurfer and extract the variance compared two one
template of the average of 80subjects. We hav'ent a method to go from curv
file to plot a mesh with matlab.
2013/7/11 Bruce Fischl <fis...@nmr.mgh.harvard.edu>
> sorry, I still don't understand what the issue is. read_surf will give you
> the surface geometry/topology, and read_curv will give you the scalar
> fields to display over them. You can use mri_surf2surf to map them into a
> common space (the fsaverage surface for example)
>
>
> cheers
> Bruce
> On Thu, 11 Jul 2013, fatma zribi wrote:
>
> Hi Bruce,
>>
>> I would like to use information about curv and sulc of a population and
>> plot
>> the variance with plot_mesh (variance presented in one brain)
>>
>> With best regards,
>>
>> Fatma
>>
>>
>> 2013/7/11 Bruce Fischl <fis...@nmr.mgh.harvard.edu>
>> Hi Fatma
>>
>> I don't understand your question. read_curv returns a scalar
>> field over the surface, not the surface itself, which is why it
>> is nvertices x 1. Use read_surf to read the surface topology in
>>
>> cheers
>> Bruce
>> On Thu, 11 Jul 2013, fatma zribi wrote:
>>
>> Dear Bruce,
>> Now i would like to use the function read_curv but I
>> have a problem of
>> dimension .. curv is a vector of [143704,1] and
>> vertices must be a matrix of
>> [3, 143704]
>>
>> Would you mind help me and send an exemple of the
>> use of the function wiht
>> the visualisation of the brain
>>
>> [curv, fnum] =
>> read_curv([SD_atlas.parms.**SUBJECTS_DIR '/'
>> SD_atlas.parms.SUBJECT '/surf/' SD_atlas.parms.hemi
>> '.curv']);
>>
>> white_sbjMesh.vertices = curv';
>> white_sbjMesh.faces=(fnum+1)'**;
>>
>> SD_white_remeshed{j}.vertices =
>> MARS_linearInterpolate(max_**mesh.vertices,
>> SD_sphere_sbjMesh, white_sbjMesh.vertices);
>>
>> SD_avg_mesh.vertices =
>> SD_avg_mesh.vertices+SD_white_**remeshed{j}.vertices;
>>
>> Thank you very much for your help
>>
>> with best regards,
>>
>> Fatma
>>
>>
>>
>>
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