Read historical .hpts mne-c files.
The filepath of .hpts file.
Unit of the positions. Defaults to ‘mm’.
DigMontage
The montage.
See also
Notes
The hpts format digitzer data file may contain comment lines starting with the pound sign (#) and data lines of the form:
<*category*> <*identifier*> <*x/mm*> <*y/mm*> <*z/mm*>
where:
<*category*>
defines the type of points. Allowed categories are: hpi
,
cardinal
(fiducial), eeg
, and extra
corresponding to
head-position indicator coil locations, cardinal landmarks, EEG
electrode locations, and additional head surface points,
respectively.
<*identifier*>
identifies the point. The identifiers are usually sequential numbers. For cardinal landmarks, 1 = left auricular point, 2 = nasion, and 3 = right auricular point. For EEG electrodes, identifier = 0 signifies the reference electrode.
<*x/mm*> , <*y/mm*> , <*z/mm*>
Location of the point, usually in the head coordinate system in millimeters. If your points are in [m] then unit parameter can be changed.
For example:
cardinal 2 -5.6729 -12.3873 -30.3671
cardinal 1 -37.6782 -10.4957 91.5228
cardinal 3 -131.3127 9.3976 -22.2363
hpi 1 -30.4493 -11.8450 83.3601
hpi 2 -122.5353 9.2232 -28.6828
hpi 3 -6.8518 -47.0697 -37.0829
hpi 4 7.3744 -50.6297 -12.1376
hpi 5 -33.4264 -43.7352 -57.7756
eeg FP1 3.8676 -77.0439 -13.0212
eeg FP2 -31.9297 -70.6852 -57.4881
eeg F7 -6.1042 -68.2969 45.4939
...