From 33e4a9e21307cc2c2235a838f002a1c961de66a7 Mon Sep 17 00:00:00 2001
From: Luke Campagnola <luke.campagnola@gmail.com>
Date: Sun, 5 Jan 2014 14:40:56 -0500
Subject: [PATCH] Fix: prevent divide-by-zero in AxisItem
---
CHANGELOG | 2 +-
pyqtgraph/graphicsItems/AxisItem.py | 3 +--
2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/CHANGELOG b/CHANGELOG
index e9ab5d7d..1457e9f6 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -38,7 +38,7 @@ pyqtgraph-0.9.9 [unreleased]
- fixed PlotCurveItem generating exceptions when data has length=0
- fixed ImageView.setImage only working once
- PolyLineROI.setPen() now changes the pen of its segments as well
-
+ - Prevent divide-by-zero in AxisItem
pyqtgraph-0.9.8 2013-11-24
diff --git a/pyqtgraph/graphicsItems/AxisItem.py b/pyqtgraph/graphicsItems/AxisItem.py
index 425fdd93..0ddd02a8 100644
--- a/pyqtgraph/graphicsItems/AxisItem.py
+++ b/pyqtgraph/graphicsItems/AxisItem.py
@@ -458,8 +458,7 @@ class AxisItem(GraphicsWidget):
return []
## decide optimal minor tick spacing in pixels (this is just aesthetics)
- pixelSpacing = size / np.log(size)
- optimalTickCount = max(2., size / pixelSpacing)
+ optimalTickCount = max(2., np.log(size))
## optimal minor tick spacing
optimalSpacing = dif / optimalTickCount
--
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