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diff --git a/tests/manual/galaxy/galaxydata.h b/tests/manual/galaxy/galaxydata.h
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+/******************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Data Visualization module.
+**
+** $QT_BEGIN_LICENSE:COMM$
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** $QT_END_LICENSE$
+**
+******************************************************************************/
+
+#ifndef SCATTERDATAMODIFIER_H
+#define SCATTERDATAMODIFIER_H
+
+#include "star.h"
+
+#include <QtDataVisualization/q3dscatter.h>
+#include <QtDataVisualization/qabstract3dseries.h>
+#include <QtGui/QFont>
+#include <QtWidgets/QSlider>
+#include <QtWidgets/QLabel>
+
+using namespace QtDataVisualization;
+
+class GalaxyData : public QObject
+{
+    Q_OBJECT
+public:
+    explicit GalaxyData(Q3DScatter *scatter,
+                        qreal rad = 13000,
+                        qreal radCore = 4000.0,
+                        qreal deltaAng = 0.0004,
+                        qreal ex1 = 0.9,
+                        qreal ex2 = 0.9);
+    ~GalaxyData();
+
+    qreal getExcentricity(qreal r) const;
+    qreal getAngularOffset(qreal rad) const;
+
+    void radiusGalaxyChanged(int value);
+    void radiusCoreChanged(int value);
+    void angleOffsetChanged(int value);
+    void eccentricityInnerChanged(int value);
+    void eccentricityOuterChanged(int value);
+    void resetValues();
+    void setFilteredEnabled(bool enabled);
+    void setStaticEnabled(bool enabled);
+    void setStarsVisible(bool enabled);
+    void setDustVisible(bool enabled);
+    void setH2Visible(bool enabled);
+    inline void setSliders(QSlider *rg,
+                           QSlider *rc,
+                           QSlider *ao,
+                           QSlider *ei,
+                           QSlider *eo) {
+        m_radiusGalaxySlider = rg;
+        m_radiusCoreSlider = rc;
+        m_angleOffsetSlider = ao;
+        m_eccentricityInnerSlider = ei;
+        m_eccentricityOuterSlider = eo;
+    }
+    void setFpsLabel(QLabel *fpsLabel) { m_fpsLabel = fpsLabel; }
+    void handleFpsChange(qreal fps);
+
+private:
+    void createGalaxy();
+    void checkMinMax(const Star &star);
+    void createNormalDataView();
+    void createFilteredView();
+    void createSeries();
+    qreal value;
+
+private:
+    Q3DScatter *m_graph;
+    QScatter3DSeries *m_normalSeries;
+    QScatter3DSeries *m_dustSeries;
+    QScatter3DSeries *m_H2Series;
+    QScatter3DSeries *m_filteredSeries;
+    Star *m_pStars;
+    Star *m_pDust;
+    Star *m_pH2;
+
+    qreal m_elEx1;          // Excentricity of the innermost ellipse
+    qreal m_elEx2;          // Excentricity of the outermost ellipse
+
+    qreal m_angleOffset;    // Angular offset per parsec
+
+    qreal m_radCore;        // Radius of the inner core
+    qreal m_radGalaxy;      // Radius of the galaxy
+    qreal m_radFarField;    // The radius after which all density waves must have circular shape
+
+    QSlider *m_radiusGalaxySlider;
+    QSlider *m_radiusCoreSlider;
+    QSlider *m_angleOffsetSlider;
+    QSlider *m_eccentricityInnerSlider;
+    QSlider *m_eccentricityOuterSlider;
+    QLabel *m_fpsLabel;
+
+    qreal m_minx;
+    qreal m_maxx;
+    qreal m_miny;
+    qreal m_maxy;
+    int m_range;
+    bool m_filtered;
+};
+
+#endif