public void AddExponentialMovingAverage(ChartStyle cs)
{
foreach (DataSeriesMA ds in DataList)
{
ds.EMALineSeries.Stroke = ds.EMALineColor;
ds.EMALineSeries.StrokeThickness = ds.EMALineThickness;
double[] data = ds.ExponentialMovingAverage();
ds.EMALineSeries.Points.Clear();
for (int i = 0; i < data.Length; i++)
{
ds.EMALineSeries.Points.Add(cs.NormalizePoint(new Point(i + ds.NDays - 1, data[i])));
}
cs.ChartCanvas.Children.Add(ds.EMALineSeries);
}
}
private void AddChart()
{
if (dc.DataList.Count > 0)
{
cs = new ChartStyle();
cs.ChartCanvas = chartCanvas;
cs.TextCanvas = textCanvas;
cs.Xmin = -1;
cs.Xmax = ds.DataString.GetLength(1);
cs.XTick = 3;
cs.Ymin = double.Parse(txYmin.Text);
cs.Ymax = double.Parse(txYmax.Text);
cs.YTick = double.Parse(txYTick.Text);
cs.Title = "Stock Chart";
cs.AddChartStyle(tbTitle, tbXLabel, tbYLabel, ds);
dc.StockChartType = DataCollection.StockChartTypeEnum.HiLo;
dc.AddStockChart(cs);
}
}
public void AddStockChart(ChartStyle cs)
{
foreach (DataSeries ds in DataList)
{
double barWidth = cs.ChartCanvas.Width / (5 * ds.DataString.GetLength(1));
double d0 = cs.DateToDouble(ds.DataString[0, 0]);
double d1 = cs.DateToDouble(ds.DataString[0, 1]);
double[,] stockData = new double[ds.DataString.GetLength(0), ds.DataString.GetLength(1)];
for (int i = 0; i < ds.DataString.GetLength(1); i++)
{
for (int j = 1; j < stockData.GetLength(0); j++)
{
if (d0 > d1)
{
stockData[j, i] = Convert.ToDouble(ds.DataString[j, ds.DataString.GetLength(1) - 1 - i]);
}
else
{
stockData[j, i] = Convert.ToDouble(ds.DataString[j, i]);
}
}
}
for (int i = 0; i < ds.DataString.GetLength(1); i++)
{
Point ptHigh = cs.NormalizePoint(new Point(i, stockData[2, i]));
Point ptLow = cs.NormalizePoint(new Point(i, stockData[3, i]));
Point ptOpen = cs.NormalizePoint(new Point(i, stockData[1, i]));
Point ptClose = cs.NormalizePoint(new Point(i, stockData[4, i]));
Point ptOpen1 = new Point(ptOpen.X - barWidth, ptOpen.Y);
Point ptClose1 = new Point(ptClose.X + barWidth, ptClose.Y);
Point ptOpen2 = new Point(ptOpen.X + barWidth, ptOpen.Y);
Point ptClose2 = new Point(ptClose.X - barWidth, ptClose.Y);
switch (StockChartType)
{
case StockChartTypeEnum.Line: // Draw Line stock chart:
if (i > 0)
{
Point pt1 = cs.NormalizePoint(new Point(i - 1, stockData[4, i - 1]));
Point pt2 = cs.NormalizePoint(new Point(i, stockData[4, i]));
DrawLine(cs.ChartCanvas, pt1, pt2, ds.LineColor, ds.LineThickness);
}
break;
case StockChartTypeEnum.HiLo: // Draw Hi-Lo stock chart:
DrawLine(cs.ChartCanvas, ptLow, ptHigh, ds.LineColor, ds.LineThickness);
break;
case StockChartTypeEnum.HiLoOpenClose: // Draw Hi-Lo-Open-Close stock chart:
DrawLine(cs.ChartCanvas, ptLow, ptHigh, ds.LineColor, ds.LineThickness);
DrawLine(cs.ChartCanvas, ptOpen, ptOpen1, ds.LineColor, ds.LineThickness);
DrawLine(cs.ChartCanvas, ptClose, ptClose1, ds.LineColor, ds.LineThickness);
break;
case StockChartTypeEnum.Candle: // Draw candle stock chart:
DrawLine(cs.ChartCanvas, ptLow, ptHigh, ds.LineColor, ds.LineThickness);
Polygon plg = new Polygon();
plg.Stroke = ds.LineColor;
plg.StrokeThickness = ds.LineThickness;
Brush fillColor = ds.FillColor;
if (stockData[1, i] < stockData[4, i])
{
fillColor = Brushes.White;
}
plg.Fill = fillColor;
plg.Points.Add(ptOpen1);
plg.Points.Add(ptOpen2);
plg.Points.Add(ptClose1);
plg.Points.Add(ptClose2);
cs.ChartCanvas.Children.Add(plg);
break;
}
}
}
}
