/// <summary>
/// Draws the polyline.
/// </summary>
/// <param name="canvas">The canvas.</param>
/// <param name="pointList">The point list.</param>
private void drawPolyline(Canvas canvas, List <Point> pointList)
{
Polyline polyline = new Polyline();
polyline.StrokeDashArray = ChartControl.GetShapePattern(this.ChartStyle.StrokePattern);
polyline.Stroke = this.ChartStyle.Stroke;
polyline.StrokeThickness = this.ChartStyle.StrokeThickness;
polyline.Points = new PointCollection(pointList);
canvas.Children.Add(polyline);
}
/// <summary>
/// Draws the impulses.
/// </summary>
/// <param name="canvas">The canvas.</param>
/// <param name="pointList">The point list.</param>
private void drawImpulses(Canvas canvas, List <Point> pointList)
{
Point origin = this.normalizedOriginPoint;
foreach (Point point in pointList)
{
Line impuls = new Line();
impuls.StrokeDashArray = ChartControl.GetShapePattern(this.ChartStyle.StrokePattern);
impuls.Stroke = this.ChartStyle.Stroke;
impuls.StrokeThickness = this.ChartStyle.StrokeThickness;
impuls.X1 = point.X;
impuls.Y1 = origin.Y;
impuls.X2 = point.X;
impuls.Y2 = point.Y;
canvas.Children.Add(impuls);
}
}
/// <summary>
/// Draws the steps.
/// </summary>
/// <param name="canvas">The canvas.</param>
/// <param name="pointList">The point list.</param>
private void drawSteps(Canvas canvas, List <Point> pointList)
{
Polyline stepsPolyline = new Polyline();
stepsPolyline.StrokeDashArray = ChartControl.GetShapePattern(this.ChartStyle.StrokePattern);
stepsPolyline.Stroke = this.ChartStyle.Stroke;
stepsPolyline.StrokeThickness = this.ChartStyle.StrokeThickness;
double previousYValue = double.NaN;
foreach (Point point in pointList)
{
if (!double.IsNaN(previousYValue))
{
Point stepPoint = new Point(point.X, (double)previousYValue);
stepsPolyline.Points.Add(stepPoint);
}
stepsPolyline.Points.Add(point);
previousYValue = point.Y;
}
canvas.Children.Add(stepsPolyline);
}
/// <summary>
/// Sets the legend.
/// </summary>
public void SetLegend()
{
int seriesCount = this.chartControl.DataCollection.Count;
if (!chartControl.IsLegend || seriesCount == 0)
{
return;
}
string[] seriesNames = getSeriesNames();
double legendWidth = 0;
double legendHeight = 0;
TextBlock textBlock = new TextBlock();
Size size = new Size();
for (int i = 0; i < seriesNames.Length; i++)
{
textBlock.Text = seriesNames[i];
textBlock.Measure(new Size(Double.PositiveInfinity, Double.PositiveInfinity));
size = textBlock.DesiredSize;
if (legendWidth < size.Width)
{
legendWidth = size.Width;
}
}
legendWidth += 50;
legendHeight = 17 * seriesCount;
double sx = 6;
double sy = 0;
double textHeight = size.Height;
double lineLength = 34;
Rectangle legendRect = new Rectangle();
legendRect.Stroke = Brushes.Black;
legendRect.Fill = Brushes.White;
legendRect.Width = legendWidth;
legendRect.Height = legendHeight;
if (this.chartControl.IsLegendBorder)
{
this.chartControl.legendCanvas.Children.Add(legendRect);
}
Canvas.SetZIndex(this.chartControl.legendCanvas, 10);
int n = 1;
foreach (DataSeries dataSeries in this.chartControl.DataCollection)
{
double xSymbol = sx + lineLength / 2;
double xText = 2 * sx + lineLength;
double yText = n * sy + (2 * n - 1) * textHeight / 2;
Line line = new Line();
line.Stroke = dataSeries.ChartStyle.Stroke;
line.StrokeThickness = dataSeries.ChartStyle.StrokeThickness;
line.StrokeDashArray = ChartControl.GetShapePattern(dataSeries.ChartStyle.StrokePattern);
line.X1 = sx;
line.Y1 = yText;
line.X2 = sx + lineLength;
line.Y2 = yText;
if (dataSeries.ChartStyle.DrawType != DrawType.None)
{
this.chartControl.legendCanvas.Children.Add(line);
}
Point point = new Point(0.5 * (line.X2 - line.X1 + dataSeries.ChartStyle.SymbolSize) + 1, line.Y1);
SymbolType symbol = dataSeries.ChartStyle.SymbolType;
if (symbol == SymbolType.Bar)
{
symbol = SymbolType.Box;
}
dataSeries.AddSymbol(symbol, this.chartControl.legendCanvas, point);
textBlock = new TextBlock();
textBlock.Text = seriesNames[n - 1];
this.chartControl.legendCanvas.Children.Add(textBlock);
Canvas.SetTop(textBlock, yText - size.Height / 2);
Canvas.SetLeft(textBlock, xText);
n++;
}
this.chartControl.legendCanvas.Width = legendRect.Width;
this.chartControl.legendCanvas.Height = legendRect.Height;
setLegendPosition(this.chartControl.chartCanvas, legendRect);
}