private void AddChart()
{
cs = new ChartStyleGridlines();
cs.ChartCanvas = chartCanvas;
cs.TextCanvas = textCanvas;
cs.Title = "Sine and Cosine Chart";
cs.Xmin = 0;
cs.Xmax = 7;
cs.Ymin = -1.5;
cs.Ymax = 1.5;
cs.YTick = 0.5;
cs.GridlinePattern = ChartStyleGridlines.GridlinePatternEnum.Dot;
cs.GridlineColor = new SolidColorBrush(Colors.Black);
cs.AddChartStyle(tbTitle);
ds.LineColor = new SolidColorBrush(Colors.Blue);
ds.LineThickness = 1;
ds.SeriesName = "Sine";
for (int i = 0; i < 36; i++)
{
double x = i / 5.0;
double y = Math.Sin(x);
ds.LineSeries.Points.Add(new Point(x, y));
}
dc.DataList.Add(ds);
ds = new DataSeries();
ds.LineColor = new SolidColorBrush(Colors.Red);
ds.SeriesName = "Cosine";
ds.LinePattern = DataSeries.LinePatternEnum.DashDot;
ds.LineThickness = 2;
for (int i = 0; i < 36; i++)
{
double x = i / 5.0;
double y = Math.Cos(x);
ds.LineSeries.Points.Add(new Point(x, y));
}
dc.DataList.Add(ds);
ds = new DataSeries();
ds.LineColor = new SolidColorBrush(Colors.Green);
ds.SeriesName = "Sine^2";
ds.LinePattern = DataSeries.LinePatternEnum.Dot;
ds.LineThickness = 2;
for (int i = 0; i < 36; i++)
{
double x = i / 5.0;
double y = Math.Sin(x) * Math.Sin(x);
ds.LineSeries.Points.Add(new Point(x, y));
}
dc.DataList.Add(ds);
dc.AddLines(chartCanvas, cs);
lg.LegendCanvas = legendCanvas;
lg.IsLegend = true;
lg.IsBorder = true;
lg.AddLegend(cs, dc);
}
public void AddLegend(ChartStyleGridlines cs, DataCollection dc)
{
TextBlock tb = new TextBlock();
if (dc.DataList.Count < 1 || !IsLegend)
{
return;
}
int n = 0;
string[] legendLabels = new string[dc.DataList.Count];
foreach (DataSeries ds in dc.DataList)
{
legendLabels[n] = ds.SeriesName;
n++;
}
double legendWidth = 0;
Size size = new Size(0, 0);
for (int i = 0; i < legendLabels.Length; i++)
{
tb = new TextBlock();
tb.Text = legendLabels[i];
tb.Measure(new Size(Double.PositiveInfinity, Double.PositiveInfinity));
size = tb.DesiredSize;
if (legendWidth < size.Width)
{
legendWidth = size.Width;
}
}
legendWidth += 80;
legendCanvas.Width = legendWidth + 5;
double legendHeight = 30 * dc.DataList.Count;
double sx = 6;
double sy = 15;
double textHeight = size.Height;
double lineLength = 34;
Rectangle legendRect = new Rectangle();
legendRect.Stroke = new SolidColorBrush(Colors.Black);
legendRect.Width = legendWidth;
legendRect.Height = legendHeight;
if (IsLegend && IsBorder)
{
LegendCanvas.Children.Add(legendRect);
}
n = 1;
foreach (DataSeries ds in dc.DataList)
{
double xSymbol = sx + lineLength / 2;
double xText = 2 * sx + lineLength;
double yText = n * sy + (2 * n - 1) * textHeight / 2;
Line line = new Line();
AddLinePattern(line, ds);
line.X1 = sx;
line.Y1 = yText;
line.X2 = sx + lineLength;
line.Y2 = yText;
LegendCanvas.Children.Add(line);
tb = new TextBlock();
tb.FontSize = 15;
tb.Text = ds.SeriesName;
LegendCanvas.Children.Add(tb);
Canvas.SetTop(tb, yText - 15);
Canvas.SetLeft(tb, xText + 10);
n++;
}
}