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rcassani/dummy_fs_wfile.m

Created May 16, 2023 14:46
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Create dummy (empty) FreeSurfer weight (`.w`) file
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dummy_fs_wfile.m
% Write empty FreeSurfer wfile
fileFullPath = '~/Desktop/dummy_rh.w';
% Create binary big-endian file
fid = fopen(fileFullPath, 'wb', 'b');
% Int16 for Latency
fwrite(fid, 0, 'int16');
% Count of vertex-value pairs to follow (3-bytes)
fwrite(fid, [0, 0, 0], 'uchar') ;
% Close file
fclose(fid);
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Format specification: http://www.grahamwideman.com/gw/brain/fs/surfacefileformats.htm#WFile
wfile reader: https://github.com/freesurfer/freesurfer/blob/dev/matlab/read_wfile.m
Related Brainstorm forum post: https://neuroimage.usc.edu/forums/t//40241

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