Hi surfers:

I was trying to convert a volume dataset from PET to fs surface template. The command I used is the following:

mri_vol2surf --src pet2t1.mgz --srcreg register.dat --hemi rh --o ./sig-rh.mgh --out_type mgh --float2int round --trgsubject ico --icoorder 7

The output file here is .mgh format. I also tried paint format. However, I was not able overlay the surface file (.mgh or .w) using freesufer. Is there anythign wrong with the command line?

Here is the the output log:

**************************************************
IcoOrder = 7, nIcoVtxs = 163842
srcvol = pet2t1.mgz
srcreg = register.dat
srcregold = 0
srcwarp unspecified
surf = white
hemi = rh
trgsubject = ico
surfreg = sphere.reg
interp = nearest
float2int = round
GetProjMax = 0
INFO: float2int code = 0
Done loading volume
Reading surface /project/ADNI/PET/127_S_1210X1a_63646/127_S_1210X1a_63646/surf/rh.white
Done reading source surface
Mapping Source Volume onto Source Subject Surface
 1 0 0 0
vol2surf_linear: nhits = 152282/152282
Done mapping volume to surface
Number of source voxels hit = 94326
Reading source surface registration 
  /project/ADNI/PET/127_S_1210X1a_63646/127_S_1210X1a_63646/surf/rh.sphere.reg
Done loading source registration surface
Reading icosahedron, order = 7, radius = 100
   Reading icosahedron /pkg/brainmap/freesurfer/lib/bem/ic7.tri
Done loading target registration surface
Mapping Surfaces (127_S_1210X1a_63646 -> ico)
surf2surf_nnfr: building source hash (res=16).
Surf2Surf: Forward Loop (163842)

surf2surf_nnfr: building target hash (res=16).
Surf2Surf: Reverse Loop (152282)
Reverse Loop had 34160 hits
Surf2Surf: Dividing by number of hits (163842)
INFO: nSrcLost = 0
Done mapping surfaces
nSrc121 = 116454, nSrcLost =     0, nSrcMulti = 35828, MnSrcMultiHits = 2.2761
nTrg121 = 138122, nTrgMulti = 25720, MnTrgMultiHits = 2.32815
Reshaping 6 (nvertices = 163842)
Writing to ./sig-rh.mgh
Dim: 27307 1 6
**************************************************

Thanks
Jing Ming
Northwestern University