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"""
============================================
Reading BEM surfaces from a forward solution
============================================
"""
# Author: Alexandre Gramfort <alexandre.gramfort@telecom-paristech.fr>
#
# License: BSD (3-clause)
print(__doc__)
import mne
from mne.datasets import sample
data_path = sample.data_path()
fname = data_path + '/subjects/sample/bem/sample-5120-5120-5120-bem-sol.fif'
surfaces = mne.read_bem_surfaces(fname, add_geom=True)
print("Number of surfaces : %d" % len(surfaces))
###############################################################################
# Show result
head_col = (0.95, 0.83, 0.83) # light pink
skull_col = (0.91, 0.89, 0.67)
brain_col = (0.67, 0.89, 0.91) # light blue
colors = [head_col, skull_col, brain_col]
# 3D source space
try:
from enthought.mayavi import mlab
except:
from mayavi import mlab
mlab.figure(size=(600, 600), bgcolor=(0, 0, 0))
for c, surf in zip(colors, surfaces):
points = surf['rr']
faces = surf['tris']
mlab.triangular_mesh(points[:, 0], points[:, 1], points[:, 2], faces,
color=c, opacity=0.3)
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