FIX: Include 0 when checking lognorm vmin

greglucas · greglucas · commit 6b3738e7d1b5 · 2021-06-22T21:01:41.000-06:00
Change vmin check to less than or equal to 0 rather than strictly
less than.
diff --git a/lib/matplotlib/image.py b/lib/matplotlib/image.py
@@ -533,7 +533,7 @@ def _make_image(self, A, in_bbox, out_bbox, clip_bbox, magnification=1.0,
                 # that may have moved input values in/out of range
                 s_vmin, s_vmax = vrange
                 if isinstance(self.norm, mcolors.LogNorm):
-                    if s_vmin < 0:
+                    if s_vmin <= 0:
                         s_vmin = max(s_vmin, np.finfo(scaled_dtype).eps)
                 with cbook._setattr_cm(self.norm,
                                        vmin=s_vmin,
