MAINT: Use radius keyword with PyVista tube (#13277)

Author: user27182

doc/changes/devel/13277.bugfix.rst

@@ -0,0 +1 @@
+Update :func:`mne.viz.plot_alignment` and related functions to support PyVista deprecation of positional arguments by :newcontrib:`user27182`.

doc/changes/names.inc

@@ -318,6 +318,7 @@
 .. _Toomas Erik Anijärv: https://www.toomaserikanijarv.com/
 .. _Tristan Stenner: https://github.com/tstenner/
 .. _Tziona NessAiver: https://github.com/TzionaN
+.. _user27182: https://github.com/user27182
 .. _Valerii Chirkov: https://github.com/vagechirkov
 .. _Velu Prabhakar Kumaravel: https://github.com/vpKumaravel
 .. _Victor Ferat: https://github.com/vferat

mne/viz/backends/_pyvista.py

@@ -594,7 +594,7 @@ def tube(
                 color = None
             else:
                 scalars = None
-            tube = line.tube(radius, n_sides=self.tube_n_sides)
+            tube = line.tube(radius=radius, n_sides=self.tube_n_sides)
             actor = _add_mesh(
                 plotter=self.plotter,
                 mesh=tube,