/// <summary>
/// Constructor
/// </summary>
/// <param name="position">The position the arrow points to.</param>
/// <param name="angle">angle of arrow with respect to x axis.</param>
public ArrowItem(PointD position, double angle)
{
to_ = position;
angle_ = -angle;
Init();
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="marker">The marker to place on the chart.</param>
/// <param name="point">The world position of the marker</param>
public MarkerItem(Marker marker, PointD point)
{
marker_ = marker;
x_ = point.X;
y_ = point.Y;
}
/// <summary>
/// Default constructor :
/// text = ""
/// angle = 45 degrees anticlockwise from horizontal.
/// </summary>
/// <param name="position">The position the arrow points to.</param>
public ArrowItem(PointD position)
{
to_ = position;
Init();
}
/// <summary>
/// Constructs a square marker at the (world) point point.
/// </summary>
/// <param name="point">the world position at which to place the marker</param>
public MarkerItem(PointD point)
{
marker_ = new Marker(Marker.MarkerType.Square);
x_ = point.X;
y_ = point.Y;
}