feat: Implement close for PyvistaQT

Author: AlejandroFernandezLuces

src/ansys/tools/visualization_interface/backends/pyvista/pyvista.py

@@ -600,3 +600,7 @@ def plot(self, plottable_object: Any, name_filter: str = None, **plotting_option
         else:
             self.pv_interface.plot(plottable_object, name_filter, **plotting_options)
 
+    def close(self):
+        """Close the plotter for PyVistaQT."""
+        if self._use_qt:
+            self.pv_interface.scene.close()

src/ansys/tools/visualization_interface/backends/pyvista/pyvista_interface.py

@@ -29,7 +29,6 @@
 import pyvistaqt
 
 import ansys.tools.visualization_interface as viz_interface
-from ansys.tools.visualization_interface import DOCUMENTATION_BUILD
 from ansys.tools.visualization_interface.types.edge_plot import EdgePlot
 from ansys.tools.visualization_interface.types.mesh_object_plot import MeshObjectPlot
 from ansys.tools.visualization_interface.utils.clip_plane import ClipPlane
@@ -110,7 +109,8 @@ def __init__(
 
         # Show the XY plane
         self._show_plane = show_plane
-        if (not DOCUMENTATION_BUILD) or (DOCUMENTATION_BUILD and not use_qt):
+        # if (not DOCUMENTATION_BUILD) or (DOCUMENTATION_BUILD and not use_qt) or (TESTING_MODE and not use_qt):
+        if not use_qt:
             self.scene.add_axes(interactive=False)
 
         # objects to actors mapping

src/ansys/tools/visualization_interface/plotter.py

@@ -81,4 +81,4 @@ def show(
             screenshot=screenshot,
             name_filter=name_filter,
             **plotting_options
-            )
+        )

tests/test_generic_plotter.py

@@ -51,7 +51,8 @@ def test_plotter_pyvistaqt():
     pl = Plotter(backend=qt_backend)
     sphere = pv.Sphere()
     pl.plot(sphere)
-    pl.show()
+    # PyVista QT show() breaks PyTest, so we avoid it.
+    qt_backend.close()
 
 
 def test_plotter_add_mb():