Hi Ørjan,

yes, you can either use our matlab functions for reading surfaces, or use mris_convert with an output surface with an extension .asc to create an ascii file.

cheers Bruce

On Mon, 6 Dec 2010, [UTF-8] Ørjan Bergmann wrote:

Dear all

I am interested doing some visualization of my cortical FreeSurfer results in other software.

In order to do so I need to some information about how the cortical surface is defined. Usually these surfaces consists of a set of 3D coordinates which gives the position of the vertices (163842 in the case of fsaverage), and a set of triangle definitions which are 3 indices into the vertex data (see http://en.wikipedia.org/wiki/Triangle_mesh )

Is it possible for me to access the triangle and vertex information of the cortical surface of the fsaverage subject?

---

Sincerely Ørjan Bergmann, PhD Post. Doc. University of Oslo

Dear Ørjan,

With SUMA you can convert freesurfer's anatomically correct images to .ply format.

Uri

2010/12/6 Ørjan Bergmann orjan.bergmann@medisin.uio.no:

Dear all

I am interested doing some visualization of my cortical FreeSurfer results in other software.

In order to do so I need to some information about how the cortical surface is defined. Usually these surfaces consists of a set of 3D coordinates which gives the position of the vertices (163842 in the case of fsaverage), and a set of triangle definitions which are 3 indices into the vertex data (see http://en.wikipedia.org/wiki/Triangle_mesh )

Is it possible for me to access the triangle and vertex information of the cortical surface of the fsaverage subject?

---

Sincerely Ørjan Bergmann, PhD Post. Doc. University of Oslo

---

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