public DownsamplerSeries(PlotDownsampler owner, XYAxisSeries series, IObservable <List <DataPoint> > pointsSouce)
{
Series = series;
PointsSouce = pointsSouce;
Owner = owner;
RawPoints = new List <DataPoint>();
pointsSouce.ObserveOnDispatcher().Subscribe(p => OnNewPoints(p));
}
private static Extent CreateExtentFor(XYAxisSeries chartData)
{
return(new Extent
(
chartData.MinX,
chartData.MaxX,
chartData.MinY,
chartData.MaxY
));
}
public void AddSeries(XYAxisSeries series, IObservable <List <DataPoint> > points)
{
var record = new DownsamplerSeries(this, series, points);
Series.Add(series, record);
}
protected void UpdateXySeries(XYAxisSeries series, IPointSeries points)
{
series.Title = points.Label;
}
public XYAxisSeries BuildXYSeries(PlotMetric metric, IList <Datapoint> dataPoints, XYAxisSeries series)
{
series.Title = metric.GetTitle();
DateTime startTime = dataPoints.Min(x => x.Timestamp).ToUniversalTime();
DateTime endTime = dataPoints.Max(x => x.Timestamp).ToUniversalTime();
IDictionary <DateTime, double> points = metric.GetIncrements(startTime, endTime).ToDictionary(x => x, y => double.NaN);
foreach (var dataPoint in dataPoints)
{
DateTime timestamp = dataPoint.Timestamp.ToUniversalTime();
if (!points.ContainsKey(timestamp))
{
throw new InvalidOperationException($"Generated time slice array doesn't contain {timestamp}");
}
points[timestamp] = dataPoint.StatisticTypeValue(metric.StatisticType);
}
series.ItemsSource = points.Select(x => DateTimeAxis.CreateDataPoint(x.Key, x.Value));
return(series);
}