Backport PR #11002: Fix logic error in ScalarMappable.to_rgba

efiring · MeeseeksDev[bot] · commit 790c21098765 · 2018-04-09T21:06:43.000Z
diff --git a/lib/matplotlib/cm.py b/lib/matplotlib/cm.py
@@ -252,7 +252,7 @@ def to_rgba(self, x, alpha=None, bytes=False, norm=True):
                 else:
                     raise ValueError("third dimension must be 3 or 4")
                 if xx.dtype.kind == 'f':
-                    if norm and xx.max() > 1 or xx.min() < 0:
+                    if norm and (xx.max() > 1 or xx.min() < 0):
                         raise ValueError("Floating point image RGB values "
                                          "must be in the 0..1 range.")
                     if bytes:
