Safer handling of the minimum positive value in log locators.

mdboom · mdboom · commit 0dcb21f8f9ee · 2010-10-12T19:13:09.000Z
svn path=/branches/v1_0_maint/; revision=8749
diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py
@@ -1244,7 +1244,7 @@ def __call__(self):
 
         if vmin <= 0.0:
             vmin = self.axis.get_minpos()
-            if vmin <= 0.0:
+            if vmin <= 0.0 or not np.isfinite(vmin):
                 raise ValueError(
                     "Data has no positive values, and therefore can not be log-scaled.")
 
@@ -1292,7 +1292,7 @@ def view_limits(self, vmin, vmax):
 
         minpos = self.axis.get_minpos()
 
-        if minpos<=0:
+        if minpos<=0 or not np.isfinite(minpos):
             raise ValueError(
                 "Data has no positive values, and therefore can not be log-scaled.")
 
