Hello,

I am using mri_surf2surf and would like to use the vertex map method nnf ("neighest neighbor, forward only") which according to the --help description exists and avoids multiple source vertices to be mapped and averaged onto a single target vertex (crucial to my analysis here). However, when I run this the output suggests that it is running the nnfr (neighest-neighbor forward and reverse) method.

Is this a bug or am I misinterpreting the console output?

This is the command and output:

/usr/local/freesurfer/dev/bin/mri_surf2surf --srcsubject 994273 --sval 994273/Results/Orientations/lh_SSangle_depth00_rfMRI_REST1_LR.mgz --trgsubject fsaverage --mapmethod nnf --o lh_SSangle_depth00_rfMRI_REST1_LR_inFSAv.mgz --hemi lh

sysname Linux
machine x86_64
user     omv4
srcsubject = 994273
srcval     = 994273/Results/Orientations/lh_SSangle_depth00_rfMRI_REST1_LR.mgz
srctype    =
trgsubject = fsaverage
trgval     = lh_SSangle_depth00_rfMRI_REST1_LR_inFSAv.mgz
trgtype    =
srcsurfreg = sphere.reg
trgsurfreg = sphere.reg
srchemi    = lh
trghemi    = lh
frame      = 0
fwhm-in    = 0
fwhm-out   = 0
label-src = (null)
label-trg = (null)
OKToRevFaceOrder = 1
UseDualHemi = 0
Reading source surface reg /cluster/olivia/Data/994273/T1w/994273/surf/lh.sphere.reg
Loading source data
Reading target surface reg /cluster/olivia/Data/994273/T1w/fsaverage/surf/lh.sphere.reg
Done
Using surf2surf_nnfr()
Mapping Source Volume onto Source Subject Surface
surf2surf_nnfr: building source hash (res=16).
Surf2Surf: Forward Loop (163842)

Surf2Surf: Dividing by number of hits (163842)
INFO: nSrcLost = 26240
nTrg121 = 163842, nTrgMulti = 0, MnTrgMultiHits = 0
nSrc121 = 78298, nSrcLost = 26240, nSrcMulti = 62974, MnSrcMultiHits = 1.3584
Saving target data
Saving to lh_SSangle_depth00_rfMRI_REST1_LR_inFSAv.mgz

I'd appreciate any suggestions.

Thanks

Olivia