From 0d74131edd6afe311a6a73cd458956059763a99e Mon Sep 17 00:00:00 2001
From: Anton Lashkov <lenton_91@mail.ru>
Date: Sat, 29 Aug 2015 11:24:51 +0400
Subject: [PATCH] SpeedPlotView: fix render graphs with zero speed

---
 src/gui/properties/speedplotview.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gui/properties/speedplotview.cpp b/src/gui/properties/speedplotview.cpp
index 8b2dc956d..059908e95 100644
--- a/src/gui/properties/speedplotview.cpp
+++ b/src/gui/properties/speedplotview.cpp
@@ -194,7 +194,7 @@ void SpeedPlotView::paintEvent(QPaintEvent *)
     // draw graphs
     rect.adjust(3, 0, 0, 0); // Need, else graphs cross left gridline
 
-    double y_multiplier = rect.height() / max_y;
+    double y_multiplier = (max_y == 0.0) ? 0.0 : rect.height() / max_y;
     double x_tick_size = double(rect.width()) / m_viewablePointsCount;
 
     for (QMap<GraphID, QQueue<double> >::const_iterator it = m_yData.begin(); it != m_yData.end(); ++it) {