Small axislines.Axes cleanups.

anntzer · anntzer · commit 68266ef52a6e · 2023-04-27T11:34:41.000+02:00
- Deprecate the "callable axes" API, which is not present anywhere else
  nor documented nor tested.
- No need to set the transform on the GridlinesCollection;
  _set_artist_props takes care of that.
diff --git a/doc/api/next_api_changes/deprecations/25774-AL.rst b/doc/api/next_api_changes/deprecations/25774-AL.rst
@@ -0,0 +1,4 @@
+Callable axisartist Axes
+~~~~~~~~~~~~~~~~~~~~~~~~
+Calling an axisartist Axes to mean `~pyplot.axis` is deprecated; explicitly
+call the method instead.
diff --git a/lib/mpl_toolkits/axisartist/axislines.py b/lib/mpl_toolkits/axisartist/axislines.py
@@ -407,6 +407,7 @@ def get_gridlines(self, which="major", axis="both"):
 
 class Axes(maxes.Axes):
 
+    @_api.deprecated("3.8", alternative="ax.axis")
     def __call__(self, *args, **kwargs):
         return maxes.Axes.axis(self.axes, *args, **kwargs)
 
@@ -440,7 +441,7 @@ def clear(self):
 
         # Init gridlines before clear() as clear() calls grid().
         self.gridlines = gridlines = GridlinesCollection(
-            [], transform=self.transData,
+            [],
             colors=mpl.rcParams['grid.color'],
             linestyles=mpl.rcParams['grid.linestyle'],
             linewidths=mpl.rcParams['grid.linewidth'])
