private void UpdateFFTDataSeries(int[] fftValues)
{
WvlLogger.Log(LogType.TraceAll, "UpdateFFTDataSeries()");
var xArray = new int[fftValues.Length];
for (int i = 0; i < fftValues.Length; i++)
{
xArray[i] = i;
}
try
{
if (fftDataSeries.Count == 0)
{
fftDataSeries.Append(xArray, fftValues);
WvlLogger.Log(LogType.TraceValues, "UpdateSamplesDataSeries() - xarray : " + xArray.Length.ToString() + " - fftValues : " + fftValues.Sum().ToString());
}
else
{
fftDataSeries.UpdateRangeYAt(0, fftValues);
WvlLogger.Log(LogType.TraceValues, "UpdateSamplesDataSeries() - 0 - fftValues : " + fftValues.Sum().ToString());
}
}
catch (Exception e)
{
WvlLogger.Log(LogType.TraceExceptions, "UpdateFFTDataSeries() - exception : " + e.ToString());
}
}
void ConfigureCADisplayLinkForFFT()
{
displayLink = CADisplayLink.Create(() =>
{
var arraysCount = arraysToPickUp;
arraysToPickUp = 0;
for (int j = 0; j < arraysCount; j++)
{
int[] yArray;
samplesQueue.TryDequeue(out yArray);
if (yArray == null)
{
return;
}
var xArray = new int[yArray.Length];
for (int i = 0; i < yArray.Length; i++)
{
xArray[i] = i;
}
if (surfaceDataSeries.XValues.Count == 0)
{
surfaceDataSeries.Append(xArray, yArray);
}
else
{
surfaceDataSeries.UpdateRangeYAt(0, yArray);
}
}
Control.InvalidateElement();
});
displayLink.AddToRunLoop(NSRunLoop.Main, NSRunLoopMode.Common);
}
private void UpdateFFTDataSeries(XYDataSeries <int, int> dataSeries)
{
var xArray = new int[dataSeries.YValues.Length];
for (int i = 0; i < dataSeries.YValues.Length; i++)
{
xArray[i] = i;
}
if (fftDataSeries.Count == 0)
{
fftDataSeries.Append(xArray, dataSeries.YValues);
}
else
{
fftDataSeries.UpdateRangeYAt(0, dataSeries.YValues);
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
// Get our chart from the layout resource,
var chart = FindViewById <SciChartSurface>(Resource.Id.Chart);
// Create a numeric X axis
var xAxis = new NumericAxis(this)
{
AxisTitle = "Number of Samples (per Series)"
};
// Create a numeric Y axis
var yAxis = new NumericAxis(this)
{
AxisTitle = "Value",
VisibleRange = new DoubleRange(-1, 1)
};
// Add xAxis to the XAxes collection of the chart
chart.XAxes.Add(xAxis);
// Add yAxis to the YAxes collection of the chart
chart.YAxes.Add(yAxis);
// Create XyDataSeries to host data for our chart
var lineData = new XyDataSeries <double, double>()
{
SeriesName = "Sin(x)"
};
var scatterData = new XyDataSeries <double, double>()
{
SeriesName = "Cos(x)"
};
// Append data which should be drawn
for (var i = 0; i < 1000; i++)
{
lineData.Append(i, Math.Sin(i * 0.1));
scatterData.Append(i, Math.Cos(i * 0.1));
}
double phase = 0;
var timer = new Timer(30)
{
AutoReset = true
};
var lineBuffer = new DoubleValues(1000);
var scatterBuffer = new DoubleValues(1000);
// Update on each tick of timer
timer.Elapsed += (s, e) =>
{
lineBuffer.Clear();
scatterBuffer.Clear();
for (int i = 0; i < 1000; i++)
{
lineBuffer.Add(Math.Sin(i * 0.1 + phase));
scatterBuffer.Add(Math.Cos(i * 0.1 + phase));
}
using (chart.SuspendUpdates())
{
lineData.UpdateRangeYAt(0, lineBuffer);
scatterData.UpdateRangeYAt(0, scatterBuffer);
}
phase += 0.01;
};
timer.Start();
var lineSeries = new FastLineRenderableSeries()
{
DataSeries = lineData,
StrokeStyle = new SolidPenStyle(Color.LightBlue, 2)
};
// Create scatter series with data appended into scatterData
var scatterSeries = new XyScatterRenderableSeries()
{
DataSeries = scatterData,
PointMarker = new EllipsePointMarker()
{
Width = 10,
Height = 10,
StrokeStyle = new SolidPenStyle(Color.Green, 2),
FillStyle = new SolidBrushStyle(Color.LightBlue)
}
};
// Add the renderable series to the RenderableSeries collection of the chart
chart.RenderableSeries.Add(lineSeries);
chart.RenderableSeries.Add(scatterSeries);
// Create interactivity modifiers
var pinchZoomModifier = new PinchZoomModifier();
pinchZoomModifier.SetReceiveHandledEvents(true);
var zoomPanModifier = new ZoomPanModifier();
zoomPanModifier.SetReceiveHandledEvents(true);
var zoomExtentsModifier = new ZoomExtentsModifier();
zoomExtentsModifier.SetReceiveHandledEvents(true);
var yAxisDragModifier = new YAxisDragModifier();
yAxisDragModifier.SetReceiveHandledEvents(true);
// Create and configure legend
var legendModifier = new LegendModifier(this);
legendModifier.SetLegendPosition(GravityFlags.Bottom | GravityFlags.CenterHorizontal, 10);
legendModifier.SetOrientation(Orientation.Horizontal);
// Create RolloverModifier to show tooltips
var rolloverModifier = new RolloverModifier();
rolloverModifier.SetReceiveHandledEvents(true);
// Create modifier group from declared modifiers
var modifiers = new ModifierGroup(pinchZoomModifier, zoomPanModifier, zoomExtentsModifier, yAxisDragModifier, rolloverModifier, legendModifier);
// Add the interactions to the ChartModifiers collection of the chart
chart.ChartModifiers.Add(modifiers);
}
