Suggestions from comments (#313)

src/ansys/dpf/post/post_utility.py

@@ -165,8 +165,8 @@ def load_simulation(
         except Exception as e:
             warnings.warn(
                 Warning(
-                    "Physics type is defaulting to 'mechanical'. Specify the physics type",
-                    "keyword if it is invalid.",
+                    "Physics type is defaulting to 'mechanical'. Specify 'simulation_type' "
+                    "keyword if you want to use another type."
                 )
             )
             physics_type = _PhysicsType.mechanical
@@ -175,8 +175,8 @@ def load_simulation(
         except Exception as e:
             warnings.warn(
                 Warning(
-                    "Analysis type is defaulting to 'static'. Specify the analysis"
-                    "type keyword if it is invalid."
+                    "Analysis type is set to 'static' as default. Specify the 'simulation_type' "
+                    "keyword if you want to use another type."
                 )
             )
             analysis_type = _AnalysisType.static
@@ -219,7 +219,8 @@ def load_simulation(
     else:
         raise ValueError(
             f"Simulation type '{simulation_type}' is not a recognized simulation type."
-            f" Please use ansys.dpf.common.AvailableSimulationTypes."
+            f" Please use ansys.dpf.post.common.AvailableSimulationTypes or instantiate one of the"
+            f" available Simulation sub-classes directly."
         )
 
 

src/ansys/dpf/post/selection.py

@@ -58,7 +58,7 @@ def __init__(self, server: Union[BaseServer, None] = None):
         self._selection = Workflow(server=self._server)
 
     def select_time_freq_indices(self, time_freq_indices: List[int]) -> None:
-        """Select time frequency sets by their indices (0 based).
+        """Select time frequency sets by their indices (zero-based indexing).
 
         Parameters
         ----------
@@ -69,7 +69,7 @@ def select_time_freq_indices(self, time_freq_indices: List[int]) -> None:
         self.select_time_freq_sets(time_freq_sets)
 
     def select_time_freq_sets(self, time_freq_sets: List[int]) -> None:
-        """Select time frequency sets by their cumulative sets (1 based).
+        """Select time frequency sets by their cumulative sets (one-based indexing).
 
         Parameters
         ----------
@@ -84,7 +84,7 @@ def select_time_freq_sets(self, time_freq_sets: List[int]) -> None:
         self._selection.set_output_name(_WfNames.scoping, op.outputs.any)
 
     def select_load_steps(self, load_steps: List[int]) -> None:
-        """Select a list of load steps (1 based).
+        """Select a list of load steps (one-based indexing).
 
         Parameters
         ----------
@@ -117,7 +117,7 @@ def select_with_scoping(self, scoping: Scoping):
     def select_time_freq_values(
         self, time_freq_values: Union[List[float], ndarray, Field]
     ) -> None:
-        """Select time frequency sets by their values (1 based).
+        """Select time frequency sets by their values (one-based indexing).
 
         Parameters
         ----------
@@ -473,7 +473,7 @@ def spatial_selection(self, value: SpatialSelection):
         self._spatial_selection = value
 
     def select_time_freq_indices(self, time_freq_indices: List[int]) -> None:
-        """Select time frequency sets by their indices (0 based).
+        """Select time frequency sets by their indices (zero-based indexing).
 
         Parameters
         ----------
@@ -482,14 +482,16 @@ def select_time_freq_indices(self, time_freq_indices: List[int]) -> None:
         """
         self._time_freq_selection.select_time_freq_indices(time_freq_indices)
 
-    def select_time_freq_sets(self, time_freq_sets: List[int]) -> None:
-        """Select time frequency sets by their cumulative sets (1 based).
+    def select_time_freq_sets(self, time_freq_sets: Union[List[int], int]) -> None:
+        """Select time frequency sets by their cumulative sets (one-based indexing).
 
         Parameters
         ----------
         time_freq_sets:
             Time/freq sets to select.
         """
+        if isinstance(time_freq_sets, int):
+            time_freq_sets = [time_freq_sets]
         self._time_freq_selection.select_time_freq_sets(time_freq_sets)
 
     def select_time_freq_values(

src/ansys/dpf/post/simulation.py

@@ -204,15 +204,16 @@ def plot(
         the loads, and the boundary conditions currently defined.
         Each representation can be deactivated with its respective boolean argument.
 
-        Args:
-            mesh:
-                Whether to plot the mesh representation.
-            constructed_geometries:
-                Whether to plot the constructed geometries.
-            loads:
-                Whether to plot the loads.
-            boundary_conditions:
-                Whether to plot the boundary conditions.
+        Parameters
+        ----------
+        mesh:
+            Whether to plot the mesh representation.
+        constructed_geometries:
+            Whether to plot the constructed geometries.
+        loads:
+            Whether to plot the loads.
+        boundary_conditions:
+            Whether to plot the boundary conditions.
 
         Returns
         -------
@@ -238,7 +239,7 @@ def plot(
         plt.show_figure()
 
     @property
-    def active_selection(self) -> Selection:
+    def active_selection(self) -> Union[Selection, None]:
         """Active selection used by default for result queries.
 
         Returns a :object:`ansys.dpf.post.selection.Selection` object.
@@ -249,13 +250,14 @@ def active_selection(self) -> Selection:
         >>> from ansys.dpf.post import examples
         >>> simulation = post.load_simulation(examples.static_rst)
         >>> selection = post.selection.Selection()
-        >>> simulation.activate_selection(selection=selection)
+        >>> simulation.active_selection = selection
         >>> print(simulation.active_selection) # doctest: +NORMALIZE_WHITESPACE +ELLIPSIS
         <ansys.dpf.post.selection.Selection object at ...>
         """
         return self._active_selection
 
-    def activate_selection(self, selection: Selection):
+    @active_selection.setter
+    def active_selection(self, selection: Union[Selection, None]):
         """Sets a selection as active on the simulation.
 
         Activating a given selection on a simulation means it is used
@@ -267,11 +269,14 @@ def activate_selection(self, selection: Selection):
         >>> from ansys.dpf.post import examples
         >>> simulation = post.load_simulation(examples.static_rst)
         >>> selection = post.selection.Selection()
-        >>> simulation.activate_selection(selection=selection)
+        >>> simulation.active_selection = selection
         >>> print(simulation.active_selection) # doctest: +NORMALIZE_WHITESPACE +ELLIPSIS
         <ansys.dpf.post.selection.Selection object at ...>
         """
-        self._active_selection = selection
+        if selection is not None:
+            self._active_selection = selection
+        else:
+            self.deactivate_selection()
 
     def deactivate_selection(self):
         """Deactivate the currently active selection.
@@ -282,7 +287,7 @@ def deactivate_selection(self):
         >>> from ansys.dpf.post import examples
         >>> simulation = post.load_simulation(examples.static_rst)
         >>> selection = post.selection.Selection()
-        >>> simulation.activate_selection(selection=selection)
+        >>> simulation.active_selection = selection
         >>> print(simulation.active_selection) # doctest: +NORMALIZE_WHITESPACE +ELLIPSIS
         <ansys.dpf.post.selection.Selection object at ...>
         >>> simulation.deactivate_selection()
@@ -360,7 +365,8 @@ def _build_components(self, base_name, components, component_names):
             for comp in components:
                 if not (isinstance(comp, str) or isinstance(comp, int)):
                     raise ValueError(
-                        "Argument 'components' can only contain integers and/or strings."
+                        "Argument 'components' can only contain integers and/or strings.\n"
+                        f"The provided component '{comp}' is not valid."
                     )
                 if isinstance(comp, int):
                     comp = str(comp)
@@ -611,8 +617,6 @@ def _build_selection(
                 dpf.time_freq_scoping_factory.scoping_on_all_time_freqs(self._model)
             )
         elif set_ids is not None:
-            if isinstance(set_ids, int):
-                set_ids = [set_ids]
             selection.select_time_freq_sets(time_freq_sets=set_ids)
 
         elif times is not None:

tests/test_simulation.py

@@ -64,7 +64,7 @@ def test_simulation_named_selections(static_simulation):
 def test_simulation_active_selection(static_simulation):
     assert static_simulation.active_selection is None
     selection = post.selection.Selection()
-    static_simulation.activate_selection(selection=selection)
+    static_simulation.active_selection = selection
     assert static_simulation.active_selection == selection
     static_simulation.deactivate_selection()
     assert static_simulation.active_selection is None