Hi Joe, that is an overlay for a surface, not a surface itself. It just has a value for each vertex. A surface has geometry and neighborhood info. Try using MRIread.m instead. doug

On 7/14/13 3:57 PM, Joseph Dien wrote:

I've been trying to use the read_surf.m Matlab function included in the Matlab folder of 5.3.0 on a Mac under Matlab 2013a.

...

...

[vertex_coords, faces] = read_surf('fmcpr.sm5.fsaverage.lh.nii');

Undefined function or variable "vertex_coords".

Error in read_surf (line 77) vertex_coords = reshape(vertex_coords, 3, vnum)' ;

It looks as though the reason is that the "magic number" evaluates as:

6029568

which does not match either of the numbers it is looking for (which denote triangle and quad files).

Does that mean that current surface files have a different format and this function needs to be updated accordingly?

Anyway, is there some way I can load surface files into Matlab?

I looked through the fsfast Matlab functions but it wasn't clear to me if one of them would do.

The best candidate seemed to be fast_read_curv.m but it yielded too many numbers so I'm thinking a curvature file is something different.

Thanks!

Joe

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Joseph Dien, Senior Research Scientist University of Maryland

E-mail: jdien07@mac.com mailto:jdien07@mac.com Phone: 202-297-8117 http://joedien.com//

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