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"""
.. _ex-eeg-on-scalp:
=================================
Plotting EEG sensors on the scalp
=================================
In this example, digitized EEG sensor locations are shown on the scalp.
"""
# Author: Eric Larson <larson.eric.d@gmail.com>
#
# License: BSD-3-Clause
# Copyright the MNE-Python contributors.
# %%
import mne
from mne.viz import plot_alignment, set_3d_view
print(__doc__)
data_path = mne.datasets.sample.data_path()
subjects_dir = data_path / "subjects"
meg_path = data_path / "MEG" / "sample"
trans = mne.read_trans(meg_path / "sample_audvis_raw-trans.fif")
raw = mne.io.read_raw_fif(meg_path / "sample_audvis_raw.fif")
# Plot electrode locations on scalp
fig = plot_alignment(
raw.info,
trans,
subject="sample",
dig=False,
eeg=["original", "projected"],
meg=[],
coord_frame="head",
subjects_dir=subjects_dir,
)
# Set viewing angle
set_3d_view(figure=fig, azimuth=135, elevation=80)
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