From 673bd507942b9bf5544d62564eaac321d0674100 2013-03-05 09:26:12
From: Miikka Heikkinen <miikka.heikkinen@digia.com>
Date: 2013-03-05 09:26:12
Subject: [PATCH] Added a note in docs about not plotting series with log axis

If a series contains zero on negative values along an attached
log dimension, the entire series will not be plotted. Documented
this fact.

Task-number: QTRD-1916

---

diff --git a/src/axis/logvalueaxis/qlogvalueaxis.cpp b/src/axis/logvalueaxis/qlogvalueaxis.cpp
index af7b9b2..b5083a9 100644
--- a/src/axis/logvalueaxis/qlogvalueaxis.cpp
+++ b/src/axis/logvalueaxis/qlogvalueaxis.cpp
@@ -31,12 +31,22 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
     \class QLogValueAxis
     \brief The QLogValueAxis class is used for manipulating chart's axis.
     \mainclass
+
+    \note If a QLogValueAxis is attached to a series with one or more points with
+    negative or zero values on the associated dimension, the series will not be
+    plotted at all. This is particularly relevant when XYModelMappers are used,
+    since empty cells in models typically contain zero values.
 */
 
 /*!
     \qmlclass LogValuesAxis QLogValueAxis
     \brief The LogValueAxis element is used for manipulating chart's axes
     \inherits AbstractAxis
+
+    \note If a LogValueAxis is attached to a series with one or more points with
+    negative or zero values on the associated dimension, the series will not be
+    plotted at all. This is particularly relevant when XYModelMappers are used,
+    since empty cells in models typically contain zero values.
 */
 
 /*!