Hi Doug,
thanks for the answer. This works great.
Franz
 
Am 18.10.2012 um 17:37 schrieb Douglas N Greve:

> Hi Franz, try mapping the xyz coordinates of the individual into 
> fsaverage6 (or fsaverage5 or lower) space. This should solve both of 
> your problems (I think).
> doug
> 
> 
> On 10/18/2012 07:53 AM, Franz Liem wrote:
>> Dear FS experts,
>> 
>> I would like to downsample a subject's white surface to arrive with a 
>> smaller number of vertices in order to feed the surface into FSL's surface 
>> tracking.
>> 
>> I tried to map the fsaverage6 onto the single subject:
>> mri_surf2surf --hemi lh --srcsubject fsaverage6 --sval-xyz white 
>> --trgsubject s01 --trgsurfval white.ico6 --tval-xyz --trgicoorder 6
>> 
>> If I load it into tksurfer, the surface now looks (as expected) much 
>> coarser. However, the number of vertices is still ~ 130k.
>> 
>> 
>> Furthermore, it would be great if vertex x would spatially correspond in all 
>> subjects.
>> 
>> Any advice is much appreciated,
>> Cheers, Franz
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>> 
>> 
> 
> -- 
> Douglas N. Greve, Ph.D.
> MGH-NMR Center
> gr...@nmr.mgh.harvard.edu
> Phone Number: 617-724-2358
> Fax: 617-726-7422
> 
> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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