/// <summary>
/// 画弧
/// </summary>
/// <param name="canvas"></param>
/// <param name="pen"></param>
/// <param name="center"></param>
/// <param name="radius"></param>
/// <param name="beginangle"></param>
/// <param name="angle"></param>
public void DrawArc(ICanvas canvas, Pen pen, UnitPoint center, float radius, float beginangle, float angle)
{
m_canvas.DrawArc(canvas, pen, center, radius, beginangle, angle);
}
