public void Ring(Math.Dot2 dot)
{
Path path;
GeometryGroup group = new GeometryGroup();
path = new Path();
path.Fill = Brushes.Brown;
path.StrokeThickness = 1;
group.Children.Add(new EllipseGeometry(dot.toPoint(), 5, 5));
group.Children.Add(new EllipseGeometry(dot.toPoint(), 3, 3));
path.Data = group;
graph.Children.Add(path);
}
public void Dot(Math.Dot2 dot)
{
Path path;
path = new Path();
path.Stroke = Brushes.Black;
path.Fill = Brushes.Black;
path.StrokeThickness = 1;
path.Data = new EllipseGeometry(dot.toPoint(), 3, 3);
graph.Children.Add(path);
}