// Called when the AppendDataCommand is invoked via button click on the view
private void AppendData()
{
var newData = _dataSource.GetRandomWalkSeries(50);
_dataSeries0.Append(newData.XData, newData.YData);
ViewportManager.ZoomExtents();
}
public BindToDataSeriesSetViewModel()
{
ViewportManager = new DefaultViewportManager();
// Create a DataSeriesSet
_dataSeries0 = new XyDataSeries <double, double>();
// Create a single data-series
_dataSource = new RandomWalkGenerator();
var data = _dataSource.GetRandomWalkSeries(1000);
// Append data to series.
_dataSeries0.Append(data.XData, data.YData);
}
public TradeOverlayExampleViewModel()
{
// Create some data to show on the chart
_chartDataSeries = new XyDataSeries <DateTime, double>();
_chartDataSeries.SeriesName = "CL FUT JUN15 2013";
// Get some price data, trades
List <Trade> trades;
List <NewsEvent> newsEvents;
var priceData = DataManager.Instance.GetRandomTrades(out trades, out newsEvents);
// Buffer above and append all in one go to avoid multiple recalculations of series range
_chartDataSeries.Append(priceData.TimeData, priceData.CloseData);
// Create annotations
TradeAnnotations = CreateAnnotations(trades, newsEvents);
_chartDataSeries.InvalidateParentSurface(RangeMode.ZoomToFit);
}