public static void SetChartViewModelPriceData(IList <Candle> candles, ChartViewModel cvm)
{
var priceDataSeries = new OhlcDataSeries <DateTime, double>();
var xvalues = new List <DateTime>();
var openValues = new List <double>();
var highValues = new List <double>();
var lowValues = new List <double>();
var closeValues = new List <double>();
var atr = new AverageTrueRange();
for (var i = 0; i < candles.Count; i++)
{
var time = new DateTime(candles[i].CloseTimeTicks, DateTimeKind.Utc).ToLocalTime();
xvalues.Add(time);
openValues.Add((double)candles[i].OpenBid);
highValues.Add((double)candles[i].HighBid);
lowValues.Add((double)candles[i].LowBid);
closeValues.Add((double)candles[i].CloseBid);
}
priceDataSeries.Append(xvalues, openValues, highValues, lowValues, closeValues);
priceDataSeries.SeriesName = "Price";
var pricePaneVm = cvm.ChartPaneViewModels.Count > 0 ? cvm.ChartPaneViewModels[0] : null;
var atrPaneVm = cvm.ChartPaneViewModels.Count > 1 ? cvm.ChartPaneViewModels[1] : null;
if (pricePaneVm == null)
{
pricePaneVm = new ChartPaneViewModel(cvm, cvm.ViewportManager)
{
IsFirstChartPane = true,
IsLastChartPane = false
};
var series = new FastCandlestickRenderableSeries {
AntiAliasing = false
};
series.SetValue(FilteringLegendModifier.IncludeSeriesProperty, false);
series.SeriesColor = Colors.DarkBlue;
pricePaneVm.ChartSeriesViewModels.Add(new ChartSeriesViewModel(priceDataSeries, series));
cvm.ChartPaneViewModels.Add(pricePaneVm);
}
else
{
pricePaneVm.ChartSeriesViewModels.Clear();
var renderableSeries = new FastCandlestickRenderableSeries {
AntiAliasing = false
};
renderableSeries.SetValue(FilteringLegendModifier.IncludeSeriesProperty, false);
pricePaneVm.ChartSeriesViewModels.Add(new ChartSeriesViewModel(priceDataSeries, renderableSeries));
}
}
public static void AddIndicator(ChartPaneViewModel paneViewModel, string market, IIndicator indicator, Color color, Timeframe timeframe, IList <Candle> candles, bool showInLegend = true)
{
var series = CreateIndicatorSeries(market, indicator, color, timeframe, candles);
var renderableSeries = new FastLineRenderableSeries
{
AntiAliasing = false,
SeriesColor = color,
StrokeThickness = 2
};
renderableSeries.SetValue(FilteringLegendModifier.IncludeSeriesProperty, showInLegend);
paneViewModel.ChartSeriesViewModels.Add(new ChartSeriesViewModel(series, renderableSeries));
}
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));
}
}
