7/2/2004 SSCC/NIMH 18
Mapping data: Volume ˆ Surface
¥Use 3dVol2Surf to map individual subject data onto each surface
ÐExample: Mapping functional data onto surface, with thresholding
Ð3dVol2Surf -spec lh.spec\
Ð-sv SurfVol_AlndExp+orig\
Ð-grid_parent DataVol+orig\
Ð-cmask '-a DataVol+orig[3] -expr step(a-72)'  \
Р -map_func ave \
Ð-oom_value -999.9\
Ð-out_1D DataSurf.1D.dset
ÐWritten by Rick Reynolds
¥-spec: SUMA spec file containing surface(s) to be used in mapping. 3dVol2Surf uses one or two surfaces for the mapping. Surfaces must have MappingRef = SAME
¥-sv: Surface Volume used to align surface to data
¥-grid_parent: AFNI volume containing data to be mapped. DataVol contains 4 sub-bricks with the last one being the threshold.
¥-cmask: Option for masking data in DataVol. Threshold value was 72
¥-map_func: Method for handling multiple voxel to one node mapping
¥-oom_value -999.9 : Assign -999.9 to nodes that fall in inactivated voxels 
¥-out_1D: Output file

ÐUse Ðhelp option for detailed help (~500 lines)