public void DownSampledTimeSeries()
{
var random = new Random();
ChartView chartView = new ChartView();
var startTime = DateTime.Now;
DateTime[] times = Enumerable.Range(1, 1000).Select(i => startTime.AddSeconds(i)).ToArray();
double[] y = Enumerable.Range(1000, 1000).Select(i => Convert.ToDouble(random.Next(100))).ToArray();
var pointSeries = new Points();
var lineSeries = new Points();
TChart chart = chartView.TeeChart;
chart.Series.Add(pointSeries);
chart.Series.Add(lineSeries);
for (int i = 0; i < 1000; i++)
{
pointSeries.Add(times[i], y[i]);
}
pointSeries.Active = false;
lineSeries.DataSource = pointSeries;
lineSeries.Function = new DownSampling(chart.Chart)
{
DisplayedPointCount = 4000, Method = DownSamplingMethod.Max
};
lineSeries.CheckDataSource();
chart.Zoomed += delegate
{
lineSeries.CheckDataSource();
};
WindowsFormsTestHelper.ShowModal(chartView);
}