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diff --git a/src/datavisualization/data/qscatterdataitem.cpp b/src/datavisualization/data/qscatterdataitem.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2013 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 QtDataVisualization module.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise 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
+**
+****************************************************************************/
+
+#include "qscatterdataitem_p.h"
+
+QT_DATAVISUALIZATION_BEGIN_NAMESPACE
+
+/*!
+ * \class QScatterDataItem
+ * \inmodule QtDataVisualization
+ * \brief The QScatterDataItem class provides a container for resolved data to be added to scatter
+ * graphs.
+ * \since 1.0.0
+ *
+ * A QScatterDataItem holds data for a single rendered item in a scatter graph.
+ * Scatter data proxies parse data into QScatterDataItem instances for visualizing.
+ *
+ * \sa QScatterDataProxy, {Qt Data Visualization 3D C++ Classes}
+ */
+
+/*!
+ * Constructs QScatterDataItem.
+ */
+QScatterDataItem::QScatterDataItem()
+    : d_ptr(0) // private data doesn't exist by default (optimization)
+
+{
+}
+
+/*!
+ * Constructs QScatterDataItem with \a position.
+ */
+QScatterDataItem::QScatterDataItem(const QVector3D &position)
+    : d_ptr(0),
+      m_position(position)
+{
+}
+
+/*!
+ * Constructs a copy of \a other.
+ */
+QScatterDataItem::QScatterDataItem(const QScatterDataItem &other)
+{
+    operator=(other);
+}
+
+/*!
+ * Destroys QScatterDataItem.
+ */
+QScatterDataItem::~QScatterDataItem()
+{
+}
+
+/*!
+ *  Assigns a copy of \a other to this object.
+ */
+QScatterDataItem &QScatterDataItem::operator=(const QScatterDataItem &other)
+{
+    m_position = other.m_position;
+    //m_size = other.m_size;
+
+    if (other.d_ptr)
+        createExtraData();
+    else
+        d_ptr = 0;
+    // TODO set extra data
+
+    return *this;
+}
+
+/*!
+ * Sets \a position to this data item.
+ */
+void QScatterDataItem::setPosition(const QVector3D &position)
+{
+    m_position = position;
+}
+
+/*!
+ * \return position of this data item.
+ */
+QVector3D QScatterDataItem::position() const
+{
+    return m_position;
+}
+
+//void QScatterDataItem::setSize(qreal size)
+//{
+//    m_size = size;
+//}
+
+//const qreal &QScatterDataItem::size() const
+//{
+//    return m_size;
+//}
+
+/*!
+ * \internal
+ */
+void QScatterDataItem::createExtraData()
+{
+    if (!d_ptr)
+        d_ptr = new QScatterDataItemPrivate;
+}
+
+QScatterDataItemPrivate::QScatterDataItemPrivate()
+{
+}
+
+QScatterDataItemPrivate::~QScatterDataItemPrivate()
+{
+}
+
+QT_DATAVISUALIZATION_END_NAMESPACE