source: branches/HeuristicLab.Problems.GrammaticalOptimization/DynamicDataDisplay/PointMarkers/TrianglePointMarker.cs @ 12503

using System.Windows;
using System.Windows.Media;

namespace Microsoft.Research.DynamicDataDisplay.PointMarkers
{
    /// <summary>Class that renders triangular marker at every point of graph</summary>
  public class TrianglePointMarker : ShapePointMarker {
    public override void Render(DrawingContext dc, Point screenPoint) {
      Point pt0 = Point.Add(screenPoint, new Vector(-Size / 2, -Size / 2));
      Point pt1 = Point.Add(screenPoint, new Vector(0, Size / 2));
      Point pt2 = Point.Add(screenPoint, new Vector(Size / 2, -Size / 2));
      
      StreamGeometry streamGeom = new StreamGeometry();
      using (var context = streamGeom.Open()) {
        context.BeginFigure(pt0, true, true);
        context.LineTo(pt1, true, true);
        context.LineTo(pt2, true, true);
      }
      dc.DrawGeometry(Fill, Pen, streamGeom);
    }
  }
}