Hi AFNI team,

I'm trying to project volume datasets to surface space using 3dVol2Surf and the project coordinates are shifted (on the y axis) for some reason. Please see the attached figure. In this figure, I used a different way for projection by letting suma and afni talk to each other, but the coordinates are shifted in the same way with 3dVol2surf. I use the following commands:

3dVol2Surf \
-spec std.141.TacFreqEnc01_lh.spec \
-surf_A smoothwm \
-surf_B pial \
-sv TacFreqEnc01_SurfVol.nii \
-grid_parent ${lname}+orig. \ # the data I want to project
-map_func mode \
-f_steps 10 \
-f_index nodes \
-out_niml TacFreqEnc01_${lname}_lh.niml.dset

Is there something I did wrong? I've tried redo the surf model, using raw anat files for the -sv option but all didn't help...

Thanks!

--Lingyan