Force autoscaling immediately after setting a scale.

anntzer · anntzer · commit 35e30d005b06 · 2019-09-13T12:12:20.000+02:00
diff --git a/lib/matplotlib/axes/_base.py b/lib/matplotlib/axes/_base.py
@@ -3252,7 +3252,6 @@ def set_xscale(self, value, **kwargs):
             - `matplotlib.scale.SymmetricalLogScale`
             - `matplotlib.scale.LogitScale`
 
-
         Notes
         -----
         By default, Matplotlib supports the above mentioned scales.
@@ -3265,7 +3264,9 @@ def set_xscale(self, value, **kwargs):
             ax.xaxis._set_scale(value, **kwargs)
             ax._update_transScale()
             ax.stale = True
-        self._request_autoscale_view(scaley=False)
+        # Force autoscaling now, to take advantage of the scale locator's
+        # nonsingular() before it possibly gets swapped out by the user.
+        self.autoscale_view(scaley=False)
 
     @cbook._make_keyword_only("3.2", "minor")
     def get_xticks(self, minor=False):
@@ -3637,7 +3638,6 @@ def set_yscale(self, value, **kwargs):
             - `matplotlib.scale.SymmetricalLogScale`
             - `matplotlib.scale.LogitScale`
 
-
         Notes
         -----
         By default, Matplotlib supports the above mentioned scales.
@@ -3650,7 +3650,9 @@ def set_yscale(self, value, **kwargs):
             ax.yaxis._set_scale(value, **kwargs)
             ax._update_transScale()
             ax.stale = True
-        self._request_autoscale_view(scalex=False)
+        # Force autoscaling now, to take advantage of the scale locator's
+        # nonsingular() before it possibly gets swapped out by the user.
+        self.autoscale_view(scalex=False)
 
     @cbook._make_keyword_only("3.2", "minor")
     def get_yticks(self, minor=False):
diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py
@@ -2173,6 +2173,7 @@ def test_log_scales():
 def test_log_scales_no_data():
     _, ax = plt.subplots()
     ax.set(xscale="log", yscale="log")
+    ax.xaxis.set_major_locator(mticker.MultipleLocator(1))
     assert ax.get_xlim() == ax.get_ylim() == (1, 10)
 
 
