FIX: fix up savefig dpi if scaled for screen

tacaswell · tacaswell · commit 9e34497306d6 · 2017-04-10T16:04:47.000-04:00
If `_original_dpi` is tacked on to the figure instance by a backend
canvas use that for 'figure' dpi instead of the dpi scaled for the
screen.
diff --git a/lib/matplotlib/backend_bases.py b/lib/matplotlib/backend_bases.py
@@ -2157,7 +2157,7 @@ def print_figure(self, filename, dpi=None, facecolor=None, edgecolor=None,
             dpi = rcParams['savefig.dpi']
 
         if dpi == 'figure':
-            dpi = self.figure.dpi
+            dpi = getattr(self.figure, '_orginal_dpi', self.figure.dpi)
 
         if facecolor is None:
             facecolor = rcParams['savefig.facecolor']
