From e9f0839352b7dad3d2c23e4f3a95e7ac418fed86 Mon Sep 17 00:00:00 2001
From: Thomas A Caswell <tcaswell@gmail.com>
Date: Sun, 16 Nov 2014 14:14:32 -0500
Subject: [PATCH 1/2] BUG : fix #3805
Enusure that norm.v{min,max} are not `None` before expanding
them to ensure that 0 < vmax-vmin.
---
lib/matplotlib/colorbar.py | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/lib/matplotlib/colorbar.py b/lib/matplotlib/colorbar.py
index 6862105bc36e..2cc294ed4c40 100644
--- a/lib/matplotlib/colorbar.py
+++ b/lib/matplotlib/colorbar.py
@@ -653,12 +653,14 @@ def _process_values(self, b=None):
self._values = v
return
else:
- self.norm.vmin, self.norm.vmax = mtrans.nonsingular(self.norm.vmin,
- self.norm.vmax,
- expander=0.1)
if not self.norm.scaled():
self.norm.vmin = 0
self.norm.vmax = 1
+
+ self.norm.vmin, self.norm.vmax = mtrans.nonsingular(self.norm.vmin,
+ self.norm.vmax,
+ expander=0.1)
+
b = self.norm.inverse(self._uniform_y(self.cmap.N + 1))
if self._extend_lower():
b[0] = b[0] - 1
From 661db3f26154179b04c9270909c498fbcd7e61cf Mon Sep 17 00:00:00 2001
From: Thomas A Caswell <tcaswell@gmail.com>
Date: Sun, 16 Nov 2014 14:23:40 -0500
Subject: [PATCH 2/2] TST : added ColorbarBase smoketest
---
lib/matplotlib/tests/test_colorbar.py | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/lib/matplotlib/tests/test_colorbar.py b/lib/matplotlib/tests/test_colorbar.py
index 0d8194a78253..8cd60e18dd52 100644
--- a/lib/matplotlib/tests/test_colorbar.py
+++ b/lib/matplotlib/tests/test_colorbar.py
@@ -246,6 +246,13 @@ def test_remove_from_figure_no_gridspec():
_test_remove_from_figure(False)
+@cleanup
+def test_colorbarbase():
+ # smoke test from #3805
+ ax = plt.gca()
+ ColorbarBase(ax, plt.cm.bone)
+
+
if __name__ == '__main__':
import nose
nose.runmodule(argv=['-s', '--with-doctest'], exit=False)