Try using --projfrac 0.5 (halfway into the ribbon). --projfrac 1 samples
at the pial, and it may be that you don't have any voxels there. Still,
one would expect a few hits. Also, the paint (w) format is pretty old.
Consider using mgh format or gifti.
doug
On 1/16/13 9:55 AM, Rouhollah Abdollahi wrote:
Dear Freesurfer,
I have created a ribbon in high resolution like 0.5 x 0.5 x 0.5 mm^3
I selected some of those voxel in the high-res ribbon file.
Then I wanted to create a paint file out of volume in that resolution
on white or pial.
I used the tkregister to register the high-res ribbon file to anatomy.
then I used
"mri_vol2surf --src seeg_in_ribbon.nii --src_type t1 --srcreg
register3.dat --hemi rh --projfrac 1 --out ./seeg_in_ribbon_surface.w
--out_type paint --surf pial"
to project the volume on surface! but unfortunately I did not get any
hits!
I already know I should get some vertices but nothing is there!?
INFO: output format is paint
srcvol = seeg_in_ribbon.nii
srctype = t1
srcreg = register3.dat
srcregold = 0
srcwarp unspecified
surf = pial
hemi = rh
ProjFrac = 1
thickness = thickness
reshape = 0
interp = nearest
float2int = round
GetProjMax = 0
INFO: float2int code = 0
Done loading volume
Reading surface /data/local/PROJECT/subj1/surf/rh.pial
Done reading source surface
Reading thickness /data/local/PROJECT/subj1/surf/rh.thickness
Done
Mapping Source Volume onto Source Subject Surface
1 1 1 1
using old
Done mapping volume to surface
Number of source voxels hit = 122086
Warning: all vertex values are zero
--
Best Regards
Rouhollah Abdollahi
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