Round the output of adjusted_figsize to avoid floating point roundoff error

Nathan Goldbaum · Nathan Goldbaum · commit 9b077f2b80ae · 2017-03-10T13:20:08.000-08:00
diff --git a/lib/matplotlib/animation.py b/lib/matplotlib/animation.py
@@ -23,6 +23,7 @@
 import six
 from six.moves import xrange, zip
 
+import numpy as np
 import os
 import platform
 import sys
@@ -62,8 +63,8 @@
 
 
 def adjusted_figsize(w, h, dpi, n):
-    wnew = int(w * dpi / n) * n / dpi
-    hnew = int(h * dpi / n) * n / dpi
+    wnew = np.round(int(w * dpi / n) * n / dpi)
+    hnew = np.round(int(h * dpi / n) * n / dpi)
     return wnew, hnew
 
 
