Hi,

I have a question about using mris_convert to convert .asc to .mgh. I have a .mgh file I made with mri_vol2surf (target subject as fsaverage). I convert it to .asc using this command:

mris_convert -c 010.onerun.space.intval.lh.fsave.mgh /home/ecooper/subjects/fsaverage/surf/lh.white lh.010mg2txt.asc

then I try to convert it from .asc to .mgh using this command:

mris_convert -c lh.010mg2txt.asc /home/ecooper/subjects/fsaverage/surf/lh.white lh.010mg2txt2mg.mgh

but when I try to load the new .mgh (lh.010mg2txt2mg.mgh) in tksurfer as an overlay:

tksurfer fsaverage lh inflated &

I get this error:

% Loading tal xfm file /home/ecooper/subjects/fsaverage/surf/../mri/transforms/talairach.xfm MRIalloc: could not allocate 443 slices Cannot allocate memory

From the documentation of mris_convert, it seems that

lh.010mg2txt2mg.mgh should be identical to the original .mgh (010.onerun.space.intval.lh.fsave.mgh). Is mris_convert unable to convert .asc to .mgh? Or is there something wrong with my commands?

Thanks for your time! Emily