/// <summary>
/// 线圈所在外包矩形的形心
/// </summary>
/// <returns></returns>
static public Vector2d Center(this Polygon2d polygon2d)
{
double wight = 0;
double height = 0;
return(polygon2d.Center(ref wight, ref height));
}
/// <summary>
/// 线圈所在外包矩形
/// </summary>
/// <returns></returns>
static public Polygon2d BoundingRectangle(this Polygon2d polygon2d)
{
//【】下方注释方法的时间需要进行测试
//Box2d box2D = polygon2d.MinimalBoundingBox(double epsilon)
double wight = 0;
double height = 0;
Vector2d center = polygon2d.Center(ref wight, ref height);
return(Polygon2d.MakeRectangle(center, wight, height));
}