**S_KW)
###############################################################################
# Force sources to fit to the surface of the brain
###############################################################################
# First, we force sources to fit to the white matter of the brain. Then, we use
# the talaich ROI to identify which sources belong to the left or right
# hemisphere and color them accordingly
# Define the Brain and Source objects
s_obj_fit = SourceObj('Fit', xyz, symbol='diamond')
b_obj_fit = BrainObj('white', translucent=True)
# Get the vertices of the brain object and force sources to fit to those
# vertices
b_obj_vert = b_obj_fit.vertices
s_obj_fit.fit_to_vertices(b_obj_vert)
# Analyse source's anatomical location using the Talairach atlas
df_tal = s_obj_fit.analyse_sources(roi_obj='talairach')
# Color sources accordingly to the hemisphere (left='purple', right='yellow')
s_obj_fit.color_sources(analysis=df_tal,
color_by='hemisphere',
roi_to_color={
'Left': 'purple',
'Right': 'yellow'
})
# Finally, add those objects to the scene
sc.add_to_subplot(s_obj_fit,
row=3,
col=1,
title="Force sources to fit to the\nsurface of the brain")
sc.add_to_subplot(b_obj_fit, row=3, col=1, use_this_cam=True)
title='Display sources in left hemisphere', **S_KW)
###############################################################################
# Force sources to fit to the surface of the brain
###############################################################################
# First, we force sources to fit to the white matter of the brain. Then, we use
# the talaich ROI to identify which sources belong to the left or right
# hemisphere and color them accordingly
# Define the Brain and Source objects
s_obj_fit = SourceObj('Fit', xyz, symbol='diamond')
b_obj_fit = BrainObj('white', translucent=True)
# Get the vertices of the brain object and force sources to fit to those
# vertices
b_obj_vert = b_obj_fit.vertices
s_obj_fit.fit_to_vertices(b_obj_vert)
# Analyse source's anatomical location using the Talairach atlas
df_tal = s_obj_fit.analyse_sources(roi_obj='talairach')
# Color sources accordingly to the hemisphere (left='purple', right='yellow')
s_obj_fit.color_sources(analysis=df_tal, color_by='hemisphere',
roi_to_color={'Left': 'purple', 'Right': 'yellow'})
# Finally, add those objects to the scene
sc.add_to_subplot(s_obj_fit, row=3, col=1,
title="Force sources to fit to the\nsurface of the brain")
sc.add_to_subplot(b_obj_fit, row=3, col=1, use_this_cam=True)
###############################################################################
# Display only sources inside the brain
###############################################################################
# In this little example, we illustrate how to only display sources inside the
# brain
"""
s_obj_left = SourceObj('S_left', xyz, color='#ab4642')
s_obj_left.set_visible_sources('left')
sc.add_to_subplot(s_obj_left, row=2, col=0,
title='Display sources in left hemisphere')
"""Create a sphere using VisPy
"""
sphere = create_sphere(rows=100, cols=100, radius=50)
sphere_vertices = sphere.get_vertices()
"""Force sources to fit on the vertices of the sphere. Then, we color sources
according to the hemisphere (left=purple, right=yellow)
"""
s_obj_fit = SourceObj('Fit', xyz, symbol='diamond')
s_obj_fit.fit_to_vertices(sphere_vertices)
df_tal = s_obj_fit.analyse_sources(roi_obj='talairach')
s_obj_fit.color_sources(analysis=df_tal, color_by='hemisphere',
roi_to_color={'Left': 'purple', 'Right': 'yellow'})
sc.add_to_subplot(s_obj_fit, row=2, col=1,
title="Force sources to fit on a sphere")
"""Use the same sphere to display only sources that are inside
"""
s_obj_inside = SourceObj('In', xyz, symbol='cross', color='firebrick')
s_obj_inside.set_visible_sources('inside', sphere_vertices)
sc.add_to_subplot(s_obj_inside, row=2, col=2,
title='Display only sources inside a sphere')
"""If you need, you can link the rotation off all cameras but this can
considerably slow down visualization updates