From 7fe5e4e686da17e5b19fb13ddf4e51d1c63121ea Mon Sep 17 00:00:00 2001 From: Rob Harrigan Date: Sat, 30 Dec 2017 09:27:42 -0600 Subject: [PATCH 1/2] prevent subticks from being added to zero decade --- lib/matplotlib/ticker.py | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py index dc133370e567..c91e78b6ae85 100644 --- a/lib/matplotlib/ticker.py +++ b/lib/matplotlib/ticker.py @@ -2346,7 +2346,10 @@ def get_log_range(lo, hi): if len(subs) > 1 or subs[0] != 1.0: ticklocs = [] for decade in decades: - ticklocs.extend(subs * decade) + if decade == 0: + ticklocs.append(decade) + else: + ticklocs.extend(subs * decade) else: ticklocs = decades From e9af134acbecb3727bc95e5050b8a9db66bd223f Mon Sep 17 00:00:00 2001 From: Rob Harrigan Date: Tue, 2 Jan 2018 07:56:51 -0600 Subject: [PATCH 2/2] adding test for SymLogNorm single zero fix --- lib/matplotlib/tests/test_colors.py | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/lib/matplotlib/tests/test_colors.py b/lib/matplotlib/tests/test_colors.py index b269157c05b5..7f67d0694fc2 100644 --- a/lib/matplotlib/tests/test_colors.py +++ b/lib/matplotlib/tests/test_colors.py @@ -247,6 +247,18 @@ def test_SymLogNorm_colorbar(): plt.close(fig) +def test_SymLogNorm_single_zero(): + """ + Test SymLogNorm to ensure it is not adding sub-ticks to zero label + """ + fig = plt.figure() + norm = mcolors.SymLogNorm(1e-5, vmin=-1, vmax=1) + cbar = mcolorbar.ColorbarBase(fig.add_subplot(111), norm=norm) + ticks = cbar.get_ticks() + assert sum(ticks == 0) == 1 + plt.close(fig) + + def _inverse_tester(norm_instance, vals): """ Checks if the inverse of the given normalization is working. pFad - Phonifier reborn

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