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Support to string digititization type #8

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Support to string digititization type #8

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0ef3b94
updated to handle string type digitization
neurosignal Oct 10, 2025
76698b3
updated to read tags for string type digitization
neurosignal Oct 10, 2025
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20 changes: 20 additions & 0 deletions external/mne/fiff_read_meas_info.m
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,10 @@
% License : BSD 3-clause
%
%
% Revision 1.15 2025/06/30 10:10:30
% Improved to handle string type digitization, especially in the new FIFF
% data by MEGIN
%
% Revision 1.14 2009/03/31 01:12:30 msh
% Improved ID handling
%
Expand Down Expand Up @@ -214,6 +218,22 @@
p = p + 1;
tag = fiff_read_tag(fid,pos);
dig(p) = tag.data;
elseif kind == FIFF.FIFF_DIG_STRING % added to address updated FIFF format (2024-25)
tag = fiff_read_tag(fid,pos);
if length(tag.data.r)>3
assert(mod(length(tag.data.r), 3) == 0,...
'length of vector tag.data.r must be 3*(no. of points in a string)')
rr = reshape(tag.data.r, 3, []);
for pp = 1:(length(tag.data.r)/3)
p = p + 1;
tag_data_pp = tag.data;
tag_data_pp.r = rr(:,pp);
dig(p) = tag_data_pp;
end
else
p = p + 1;
dig(p) = tag.data;
end
else
if kind == FIFF.FIFF_MNE_COORD_FRAME
tag = fiff_read_tag(fid,pos);
Expand Down
10 changes: 10 additions & 0 deletions external/mne/fiff_read_tag.m
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,10 @@
% License : BSD 3-clause
%
%
% Revision 1.17 2025/06/30 10:10:30
% Added to read string type digitization, especially in the new FIFF
% data by MEGIN
%
% Revision 1.16 2008/11/17 15:07:00 msh
% Added reading of short, unsigned short, and unsigned int data
%
Expand Down Expand Up @@ -278,6 +282,12 @@
tag.data.ident = fread(fid,1,'int32=>int32');
tag.data.r = fread(fid,3,'single=>single');
tag.data.coord_frame = 0;
case FIFF.FIFFT_DIG_STRING_STRUCT
tag.data.kind = fread(fid,1,'int32=>int32');
tag.data.ident = fread(fid,1,'int32=>int32');
npts = fread(fid,1,'int32=>int32');
tag.data.r = fread(fid,npts*3,'single=>single');
tag.data.coord_frame = 0;
case FIFF.FIFFT_COORD_TRANS_STRUCT
tag.data.from = fread(fid,1,'int32=>int32');
tag.data.to = fread(fid,1,'int32=>int32');
Expand Down