private void Chart_OnSubscribeIndicatorElement(ChartIndicatorElement element, CandleSeries series, IIndicator indicator)
{
_dataThreadActions.Add(() =>
{
var oldReset = Chart.DisableIndicatorReset;
try
{
Chart.DisableIndicatorReset = true;
indicator.Reset();
}
finally
{
Chart.DisableIndicatorReset = oldReset;
}
var chartData = new ChartDrawData();
foreach (var candle in _allCandles.CachedValues)
{
chartData.Group(candle.OpenTime).Add(element, indicator.Process(candle));
}
Chart.Reset(new[] { element });
Chart.Draw(chartData);
_indicators[element] = indicator;
});
}
public static void SetChartViewModelIndicatorPaneData(IList <Candle> candles, ChartViewModel cvm, IIndicator indicator)
{
indicator.Reset();
var indicatorDataSeries = new XyDataSeries <DateTime, double>();
for (var i = 0; i < candles.Count; i++)
{
var time = new DateTime(candles[i].CloseTimeTicks, DateTimeKind.Utc).ToLocalTime();
var v = indicator.Process(candles[i]);
indicatorDataSeries.Append(time, v.IsFormed ? v.Value : float.NaN);
}
indicatorDataSeries.SeriesName = indicator.Name;
var indicatorPaneVm = cvm.ChartPaneViewModels.Count > 1 ? cvm.ChartPaneViewModels[1] : null;
if (indicatorPaneVm == null)
{
var indicatorPane = new ChartPaneViewModel(cvm, cvm.ViewportManager)
{
IsFirstChartPane = false,
IsLastChartPane = true,
YAxisTextFormatting = "0.0000"
};
indicatorPane.ChartSeriesViewModels.Add(new ChartSeriesViewModel(indicatorDataSeries, new FastLineRenderableSeries
{
AntiAliasing = false,
SeriesColor = Colors.DarkBlue,
StrokeThickness = 2
}));
cvm.ChartPaneViewModels.Add(indicatorPane);
}
else
{
indicatorPaneVm.ChartSeriesViewModels.Clear();
var fastLineRenderableSeries = new FastLineRenderableSeries
{
AntiAliasing = false,
SeriesColor = Colors.DarkBlue,
StrokeThickness = 2
};
indicatorPaneVm.ChartSeriesViewModels.Add(new ChartSeriesViewModel(indicatorDataSeries, fastLineRenderableSeries));
}
}