public AccelerationChart()
        {
            m_values = new List<Value>();

            m_series = new List<Series>();
            m_series.Add(new Series("accel X", UIElement.ToColor(0x88000000)));
            m_series.Add(new Series("accel Y", UIElement.ToColor(0x88555555)));
            m_series.Add(new Series("accel Z", UIElement.ToColor(0x88aaaaaa)));

            m_axisValues = new AxisValueProvider();
            m_axisLabels = new AxisLabelProvider();
        }