diff --git a/demos/chartviewer/charts/axis/barcategoryaxisxlogy.cpp b/demos/chartviewer/charts/axis/barcategoryaxisxlogy.cpp
new file mode 100644
index 0000000..bd65654
--- /dev/null
+++ b/demos/chartviewer/charts/axis/barcategoryaxisxlogy.cpp
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "charts.h"
+#include "qchart.h"
+#include "qbarseries.h"
+#include "qbarset.h"
+#include "qlogvalueaxis.h"
+#include "qbarcategoryaxis.h"
+
+class BarCategoryAxisXLogY: public Chart
+{
+public:
+    QString name() { return "AxisX"; }
+    QString category()  { return QObject::tr("Axis"); }
+    QString subCategory() { return "BarCategoryAxis"; }
+
+    QChart *createChart(const DataTable &table)
+    {
+        QChart *chart = new QChart();
+        chart->setTitle(" BarCateogry X , LogValue Y");
+
+        QString name("Series ");
+        QBarSeries *series = new QBarSeries(chart);
+        QLogValueAxis *logvalueaxis = new QLogValueAxis();
+        logvalueaxis->setBase(2);
+        QBarCategoryAxis *barcategory = new QBarCategoryAxis();
+        for (int i(0); i < table.count(); i++) {
+            QBarSet *set = new QBarSet("Bar set " + QString::number(i));
+            foreach (Data data, table[i])
+                *set << data.first.y();
+            series->append(set);
+        }
+        chart->addSeries(series);
+
+        int count = series->barSets().first()->count();
+
+
+        for (int i = 0; i < count; i++) {
+            barcategory->append("BarSet " + QString::number(i));
+        }
+
+        chart->setAxisY(logvalueaxis, series);
+        chart->setAxisX(barcategory, series);
+
+        return chart;
+    }
+};
+
+class BarCategoryAxisXLogYTitle: public BarCategoryAxisXLogY
+{
+    QString name() { return "AxisX Title"; }
+    QChart *createChart(const DataTable &table)
+    {
+        QChart *chart = BarCategoryAxisXLogY::createChart(table);
+        chart->axisX()->setTitleText("Axis X");
+        chart->axisY()->setTitleText("Axis Y");
+        chart->setTitle(" BarCateogry X , LogValue Y, title");
+        return chart;
+    }
+};
+
+DECLARE_CHART(BarCategoryAxisXLogY);
+DECLARE_CHART(BarCategoryAxisXLogYTitle);
diff --git a/demos/chartviewer/charts/axis/barcategoryaxisylogx.cpp b/demos/chartviewer/charts/axis/barcategoryaxisylogx.cpp
new file mode 100644
index 0000000..3b76b46
--- /dev/null
+++ b/demos/chartviewer/charts/axis/barcategoryaxisylogx.cpp
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "charts.h"
+#include "qchart.h"
+#include "qhorizontalbarseries.h"
+#include "qbarset.h"
+#include "qlogvalueaxis.h"
+#include "qbarcategoryaxis.h"
+
+class BarCategoryAxisYLogX: public Chart
+{
+public:
+    QString name() { return "AxisY"; }
+    QString category()  { return QObject::tr("Axis"); }
+    QString subCategory() { return "BarCategoryAxis"; }
+
+    QChart *createChart(const DataTable &table)
+    {
+        QChart *chart = new QChart();
+        chart->setTitle(" LogValue X , BarCateogry Y");
+
+        QString name("Series ");
+        QHorizontalBarSeries *series = new QHorizontalBarSeries(chart);
+        QLogValueAxis *logvalueaxis = new QLogValueAxis();
+        logvalueaxis->setBase(2);
+        QBarCategoryAxis *barcategory = new QBarCategoryAxis();
+        for (int i(0); i < table.count(); i++) {
+            QBarSet *set = new QBarSet("Bar set " + QString::number(i));
+            foreach (Data data, table[i])
+                *set << data.first.y();
+            series->append(set);
+        }
+        chart->addSeries(series);
+
+        int count = series->barSets().first()->count();
+
+
+        for (int i = 0; i < count; i++) {
+            barcategory->append("BarSet " + QString::number(i));
+        }
+
+        chart->setAxisX(logvalueaxis, series);
+        chart->setAxisY(barcategory, series);
+
+        return chart;
+    }
+};
+
+class BarCategoryAxisYLogXTitle: public BarCategoryAxisYLogX
+{
+    QString name() { return "AxisX Title"; }
+    QChart *createChart(const DataTable &table)
+    {
+        QChart *chart = BarCategoryAxisYLogX::createChart(table);
+        chart->axisX()->setTitleText("Axis X");
+        chart->axisY()->setTitleText("Axis Y");
+        chart->setTitle(" LogValue X , BarCateogry Y, title");
+        return chart;
+    }
+};
+
+DECLARE_CHART(BarCategoryAxisYLogX);
+DECLARE_CHART(BarCategoryAxisYLogXTitle);
diff --git a/demos/chartviewer/charts/axis/logvalueaxisx.cpp b/demos/chartviewer/charts/axis/logvalueaxisx.cpp
new file mode 100644
index 0000000..ec59df8
--- /dev/null
+++ b/demos/chartviewer/charts/axis/logvalueaxisx.cpp
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "charts.h"
+#include "qchart.h"
+#include "qlineseries.h"
+#include "qlogvalueaxis.h"
+#include "qcategoryaxis.h"
+
+class LogValueAxisX: public Chart
+{
+public:
+    QString name() { return "LogValueAxisX"; }
+    QString category()  { return QObject::tr("Axis"); }
+    QString subCategory() { return QObject::tr("Log"); }
+
+    QChart *createChart(const DataTable &table)
+    {
+        QChart *chart = new QChart();
+        chart->setTitle("LogValue X , Value Y");
+
+        QString name("Series ");
+        int nameIndex = 0;
+        foreach (DataList list, table) {
+            QLineSeries *series = new QLineSeries(chart);
+            foreach (Data data, list)
+                series->append(data.first);
+            series->setName(name + QString::number(nameIndex));
+            nameIndex++;
+            chart->addSeries(series);
+        }
+
+        chart->createDefaultAxes();
+        QLogValueAxis *axis = new QLogValueAxis();
+        axis->setBase(1.2);
+        foreach (QAbstractSeries *series, chart->series())
+            chart->setAxisX(axis, series);
+
+        return chart;
+    }
+};
+
+class LogValueAxisTitleX: public LogValueAxisX
+{
+public:
+    QString name() { return "LogValueAxisXTitle"; }
+
+    QChart *createChart(const DataTable &table)
+    {
+        QChart *chart = LogValueAxisX::createChart(table);
+        chart->axisX()->setTitleText("Axis X");
+        chart->axisY()->setTitleText("Axis Y");
+        chart->setTitle("Log Value X , Value Y, title");
+        return chart;
+    }
+};
+
+DECLARE_CHART(LogValueAxisX);
+DECLARE_CHART(LogValueAxisTitleX);
diff --git a/demos/chartviewer/charts/axis/logvalueaxisy.cpp b/demos/chartviewer/charts/axis/logvalueaxisy.cpp
new file mode 100644
index 0000000..a434488
--- /dev/null
+++ b/demos/chartviewer/charts/axis/logvalueaxisy.cpp
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Commercial Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "charts.h"
+#include "qchart.h"
+#include "qlineseries.h"
+#include "qlogvalueaxis.h"
+#include "qcategoryaxis.h"
+
+class LogValueAxisY: public Chart
+{
+public:
+    QString name() { return "LogValueAxisY"; }
+    QString category()  { return QObject::tr("Axis"); }
+    QString subCategory() { return QObject::tr("Log"); }
+
+    QChart *createChart(const DataTable &table)
+    {
+        QChart *chart = new QChart();
+        chart->setTitle("Value X , LogValue Y");
+
+        QString name("Series ");
+        int nameIndex = 0;
+        foreach (DataList list, table) {
+            QLineSeries *series = new QLineSeries(chart);
+            foreach (Data data, list)
+                series->append(data.first);
+            series->setName(name + QString::number(nameIndex));
+            nameIndex++;
+            chart->addSeries(series);
+        }
+
+        chart->createDefaultAxes();
+        QLogValueAxis *axis = new QLogValueAxis();
+        axis->setBase(2);
+        foreach (QAbstractSeries *series, chart->series())
+            chart->setAxisY(axis, series);
+
+        return chart;
+    }
+};
+
+class LogValueAxisTitleY: public LogValueAxisY
+{
+public:
+    QString name() { return "LogValueAxisYTitle"; }
+
+    QChart *createChart(const DataTable &table)
+    {
+        QChart *chart = LogValueAxisY::createChart(table);
+        chart->axisX()->setTitleText("Axis X");
+        chart->axisY()->setTitleText("Axis Y");
+        chart->setTitle("Value X , Log Value Y, title");
+        return chart;
+    }
+};
+
+DECLARE_CHART(LogValueAxisY);
+DECLARE_CHART(LogValueAxisTitleY);
diff --git a/demos/chartviewer/charts/charts.pri b/demos/chartviewer/charts/charts.pri
index 88d455c..13321ef 100644
--- a/demos/chartviewer/charts/charts.pri
+++ b/demos/chartviewer/charts/charts.pri
@@ -15,9 +15,13 @@ SOURCES += \
     $$PWD/pieseries/piechart.cpp \
     $$PWD/pieseries/donutchart.cpp \
     $$PWD/axis/valueaxis.cpp \
+    $$PWD/axis/logvalueaxisx.cpp \
+    $$PWD/axis/logvalueaxisy.cpp \
     $$PWD/axis/categoryaxis.cpp \
     $$PWD/axis/barcategoryaxisx.cpp \
     $$PWD/axis/barcategoryaxisy.cpp \
+    $$PWD/axis/barcategoryaxisxlogy.cpp \
+    $$PWD/axis/barcategoryaxisylogx.cpp \
     $$PWD/multiaxis/multivalueaxis.cpp \
     $$PWD/multiaxis/multivalueaxis2.cpp \
     $$PWD/multiaxis/multivalueaxis3.cpp \
diff --git a/src/barchart/vertical/bar/barchartitem.cpp b/src/barchart/vertical/bar/barchartitem.cpp
index 2029d32..1ef0259 100644
--- a/src/barchart/vertical/bar/barchartitem.cpp
+++ b/src/barchart/vertical/bar/barchartitem.cpp
@@ -66,14 +66,14 @@ QVector<QRectF> BarChartItem::calculateLayout()
             layout.append(rect);
             bar->setPen(barSet->m_pen);
             bar->setBrush(barSet->m_brush);
-            if (qFuzzyCompare(rectHeight, 0))
+            if (qFuzzyIsNull(rectHeight))
                 bar->setVisible(false);
             else
                 bar->setVisible(barsVisible);
 
             QGraphicsSimpleTextItem *label = m_labels.at(itemIndex);
 
-            if (!qFuzzyCompare(barSet->value(category), 0))
+            if (!qFuzzyIsNull(barSet->value(category)))
                 label->setText(QString::number(barSet->value(category)));
             else
                 label->setText(QString(""));
diff --git a/src/barchart/vertical/percent/percentbarchartitem.cpp b/src/barchart/vertical/percent/percentbarchartitem.cpp
index 5d98b90..5690928 100644
--- a/src/barchart/vertical/percent/percentbarchartitem.cpp
+++ b/src/barchart/vertical/percent/percentbarchartitem.cpp
@@ -63,7 +63,7 @@ QVector<QRectF> PercentBarChartItem::calculateLayout()
             Bar *bar = m_bars.at(itemIndex);
             bar->setPen(barSet->m_pen);
             bar->setBrush(barSet->m_brush);
-            if (qFuzzyCompare(rectHeight, 0))
+            if (qFuzzyIsNull(rectHeight))
                 bar->setVisible(false);
             else
                 bar->setVisible(barsVisible);
@@ -73,7 +73,7 @@ QVector<QRectF> PercentBarChartItem::calculateLayout()
 
             QGraphicsSimpleTextItem *label = m_labels.at(itemIndex);
 
-            if (!qFuzzyCompare(m_series->d_func()->valueAt(set, category), 0)) {
+            if (!qFuzzyIsNull(m_series->d_func()->valueAt(set, category))) {
                 int p = m_series->d_func()->percentageAt(set, category) * 100;
                 QString vString(QString::number(p));
                 vString.truncate(3);
diff --git a/src/barchart/vertical/stacked/stackedbarchartitem.cpp b/src/barchart/vertical/stacked/stackedbarchartitem.cpp
index 73244cf..ccc6f6f 100644
--- a/src/barchart/vertical/stacked/stackedbarchartitem.cpp
+++ b/src/barchart/vertical/stacked/stackedbarchartitem.cpp
@@ -61,14 +61,14 @@ QVector<QRectF> StackedBarChartItem::calculateLayout()
             Bar *bar = m_bars.at(itemIndex);
             bar->setPen(barSet->m_pen);
             bar->setBrush(barSet->m_brush);
-            if (qFuzzyCompare(rectHeight, 0))
+            if (qFuzzyIsNull(rectHeight))
                 bar->setVisible(false);
             else
                 bar->setVisible(barsVisible);
 
             QGraphicsSimpleTextItem *label = m_labels.at(itemIndex);
 
-            if (!qFuzzyCompare(barSet->value(category), 0))
+            if (!qFuzzyIsNull(barSet->value(category)))
                 label->setText(QString::number(barSet->value(category)));
             else
                 label->setText(QString(""));