FIX: vertices

examples/inverse/plot_time_frequency_mixed_norm_inverse.py

@@ -94,7 +94,7 @@
                       subjects_dir=subjects_dir, mode='orthoview',
                       idx='amplitude')
 
-# # Plot dipole locations of all dipoles with MRI slices
+# # Plot dipole locations of all dipoles with MRI slices:
 # for dip in dipoles:
 #     plot_dipole_locations(dip, forward['mri_head_t'], 'sample',
 #                           subjects_dir=subjects_dir, mode='orthoview',

mne/viz/_3d.py

@@ -1904,11 +1904,11 @@ def _plot_stc(stc, subject, surface, hemi, colormap, time_label,
         "volume_options": volume_options,
         "verbose": False,
     }
-    for hi, hemi in enumerate(hemis):
+    for hemi in hemis:
         if isinstance(stc, _BaseVolSourceEstimate):  # no surf data
             break
-        vertices = stc.vertices[hi]
-        if len(stc.vertices[hi]) == 0:  # no surf data for the given hemi
+        vertices = stc.vertices[0 if hemi == 'lh' else 1]
+        if len(vertices) == 0:  # no surf data for the given hemi
             continue  # no data
         use_kwargs = kwargs.copy()
         use_kwargs.update(hemi=hemi)

mne/viz/_brain/tests/test_brain.py

@@ -278,6 +278,12 @@ def test_single_hemi(hemi, renderer_interactive, brain_gc):
         subjects_dir=subjects_dir, hemi='both', size=300)
     brain.close()
 
+    # test skipping when len(vertices) == 0
+    stc.vertices[1 - idx] = np.array([])
+    brain = stc.plot(
+        subjects_dir=subjects_dir, hemi=hemi, size=300)
+    brain.close()
+
 
 @testing.requires_testing_data
 @pytest.mark.slowtest