void UpdateChannel()
{
int i, j;
_mplayer.Close();
_throughputGraph.BeginUpdate();
_throughputSeries.SamplesSingle = _throughputdata[_selectChannelIndex];
_rmsSeries.SamplesSingle = _rmsData[_selectChannelIndex];
_throughputGraph.ViewXY.ZoomToFit();
_throughputGraph.EndUpdate();
_tfGraph.BeginUpdate();
_tfdata = new double[_dataFileNode.NFrame][];
float[] curdata = new float[_dataFileNode.Nfft];
float[] fdata = null;
int curind = 0;
for (i = 0; i < _dataFileNode.NFrame; i++)
{
Array.Copy(_throughputdata[_selectChannelIndex], curind, curdata, 0, _dataFileNode.Nfft);
curind += _dataFileNode.FrameDN;
spectrumCalculator.PowerSpectrum(curdata, out fdata);
_tfdata[i] = new double[flen];
for (j = 0; j < flen; j++)
{
_tfdata[i][j] = 20 * Math.Log10(fdata[j + fstarti]) + _aweightdb[j];
}
}
_tfSeries.SetValuesData(_tfdata, IntensityGridValuesDataOrder.ColumnsRows);
_tfGraph.ViewXY.ZoomToFit();
_tfGraph.EndUpdate();
oldiColIndex = -1;
verticalCursor_PositionChanged(null, new PositionChangedEventArgs()
{
NewValue = _tfgraph_verticalCursor.ValueAtXAxis
});
}
/// <summary>
/// 构造
/// </summary>
/// <param name="parentControl">父控件</param>
/// <param name="verticalScrolling">是否可以垂直滚动</param>
/// <param name="resolution">分辨率</param>
/// <param name="timeStepMs"></param>
/// <param name="timeRangeLengthSec"></param>
/// <param name="freqMin">最小频率</param>
/// <param name="freqMax">最大频率</param>
/// <param name="title">频谱仪标题(未使用)</param>
/// <param name="toneColor"></param>
public SpectrogramViewXYIntensity(Panel parentControl, bool verticalScrolling,
int resolution, double timeStepMs, double timeRangeLengthSec,
double freqMin, double freqMax, string title, Color toneColor)
{
_parentControl = parentControl;
double dDefaultYMax = 7000000;
double dAxisTimeScaleMin = timeStepMs / 1000.0 - timeRangeLengthSec;
double dAxisTimeScaleMax = 0;
m_dStepTime = timeStepMs / 1000.0;
m_dTimeRangeLengthSec = timeRangeLengthSec;
//Create chart
LightningChartUltimate chart = new LightningChartUltimate();
_chart = chart;
_chart.VerticalAlignment = VerticalAlignment.Top;
_chart.HorizontalAlignment = HorizontalAlignment.Left;
m_bIsHorizontalScrolling = !verticalScrolling;
chart.BeginUpdate();
parentControl.Children.Add(chart);
_chart.ChartBackground.Color = ChartTools.CalcGradient(toneColor, Colors.Black, 65);
_chart.ChartBackground.GradientDirection = 0;
_chart.ChartBackground.GradientFill = GradientFill.Cylindrical;
chart.ChartName = "Spectrogram chart";
chart.ViewXY.XAxes = ViewXY.CreateDefaultXAxes();
chart.ViewXY.YAxes = ViewXY.CreateDefaultYAxes();
chart.Title.Visible = false;
chart.Title.Font = new WpfFont("Segoe UI", 13, true, false);
chart.Title.Offset.SetValues(0, 20);
chart.ViewXY.ZoomPanOptions.RightMouseButtonAction = MouseButtonAction.None;
chart.ViewXY.ZoomPanOptions.LeftMouseButtonAction = MouseButtonAction.None;
chart.ViewXY.ZoomPanOptions.MouseWheelZooming = MouseWheelZooming.Off;
//Disable automatic axis layouts
chart.ViewXY.AxisLayout.AutoAdjustMargins = false;
chart.ViewXY.AxisLayout.XAxisAutoPlacement = XAxisAutoPlacement.Off;
chart.ViewXY.AxisLayout.YAxisAutoPlacement = YAxisAutoPlacement.Off;
chart.ViewXY.AxisLayout.XAxisTitleAutoPlacement = false;
chart.ViewXY.AxisLayout.YAxisTitleAutoPlacement = false;
chart.ViewXY.Margins = new Thickness(60, 10, 15, 50);
if (m_bIsHorizontalScrolling)
{
chart.ViewXY.XAxes[0].ValueType = AxisValueType.Time;
chart.ViewXY.XAxes[0].Title.Text = "Time";
chart.ViewXY.XAxes[0].SetRange(dAxisTimeScaleMin, dAxisTimeScaleMax);
chart.ViewXY.YAxes[0].ValueType = AxisValueType.Number;
chart.ViewXY.YAxes[0].Title.Text = "Frequency(Hz)";
chart.ViewXY.YAxes[0].SetRange(freqMin, freqMax);
}
else
{
chart.ViewXY.XAxes[0].ValueType = AxisValueType.Number;
chart.ViewXY.XAxes[0].Title.Text = "Frequency(Hz)";
chart.ViewXY.XAxes[0].SetRange(freqMin, freqMax);
chart.ViewXY.YAxes[0].ValueType = AxisValueType.Time;
chart.ViewXY.YAxes[0].Title.Text = "Time";
chart.ViewXY.YAxes[0].SetRange(dAxisTimeScaleMin, dAxisTimeScaleMax);
}
m_dCurrentTime = dAxisTimeScaleMax;
Color color = Colors.White;
chart.ViewXY.XAxes[0].MinorDivTickStyle.Visible = false;
chart.ViewXY.XAxes[0].LabelsColor = Color.FromArgb(200, color.R, color.G, color.B);
chart.ViewXY.XAxes[0].MajorDivTickStyle.Color = Colors.Orange;
chart.ViewXY.XAxes[0].Title.Shadow.Style = TextShadowStyle.Off;
chart.ViewXY.XAxes[0].LabelsNumberFormat = "0";
chart.ViewXY.YAxes[0].MinorDivTickStyle.Visible = false;
chart.ViewXY.YAxes[0].LabelsColor = Color.FromArgb(200, color.R, color.G, color.B);
chart.ViewXY.YAxes[0].MajorDivTickStyle.Color = Colors.Orange;
chart.ViewXY.YAxes[0].Title.Shadow.Style = TextShadowStyle.Off;
chart.ViewXY.YAxes[0].LabelsNumberFormat = "0";
//Setup legend box
chart.ViewXY.LegendBoxes = ViewXY.CreateDefaultLegendBoxes();
chart.ViewXY.LegendBoxes[0].SeriesTitleColor = toneColor;
chart.ViewXY.LegendBoxes[0].ValueLabelColor = Colors.White;
chart.ViewXY.LegendBoxes[0].IntensityScales.ScaleBorderColor = Colors.White;
chart.ViewXY.LegendBoxes[0].Position = LegendBoxPositionXY.RightCenter;
chart.ViewXY.LegendBoxes[0].Layout = LegendBoxLayout.Vertical;
chart.ViewXY.LegendBoxes[0].Offset.SetValues(-20, 0);
chart.ViewXY.LegendBoxes[0].Fill.Style = RectFillStyle.None;
chart.ViewXY.LegendBoxes[0].Shadow.Visible = false;
chart.ViewXY.LegendBoxes[0].BorderWidth = 0;
chart.ViewXY.LegendBoxes[0].IntensityScales.ScaleSizeDim1 = 100;
chart.ViewXY.LegendBoxes[0].IntensityScales.ScaleSizeDim2 = 15;
chart.ViewXY.LegendBoxes[0].ShowCheckboxes = false;
chart.ViewXY.LegendBoxes[0].UnitsColor = Colors.Transparent;
chart.Name = "Spectrogram";
//Create grid
_grid = new IntensityGridSeries(chart.ViewXY, chart.ViewXY.XAxes[0], chart.ViewXY.YAxes[0]);
chart.ViewXY.IntensityGridSeries.Add(_grid);
m_iSizeTimeSlots = (int)Math.Round(timeRangeLengthSec / (timeStepMs / 1000.0));
m_iSizeResolution = resolution;
m_aFastData = new double[m_iSizeTimeSlots][];
for (int iTimeSlot = 0; iTimeSlot < m_iSizeTimeSlots; iTimeSlot++)
{
m_aFastData[iTimeSlot] = new double[m_iSizeResolution];
}
if (m_bIsHorizontalScrolling)
{
_grid.SetValuesData(m_aFastData, IntensityGridValuesDataOrder.ColumnsRows);
}
else
{
_grid.SetValuesData(m_aFastData, IntensityGridValuesDataOrder.RowsColumns);
}
_grid.Data = null;
_grid.SetRangesXY(chart.ViewXY.XAxes[0].Minimum, chart.ViewXY.XAxes[0].Maximum,
chart.ViewXY.YAxes[0].Minimum, chart.ViewXY.YAxes[0].Maximum);
_grid.ContourLineType = ContourLineTypeXY.None;
_grid.WireframeType = SurfaceWireframeType.None;
_grid.PixelRendering = true;
_grid.MouseInteraction = false;
_grid.ValueRangePalette = CreatePalette(_grid, dDefaultYMax);
_grid.Title.Text = "P(f)";
chart.EndUpdate();
}