/// <summary>
/// 如果向量表示点的坐标，计算这个点和指定参数点之间的距离
/// </summary>
/// <param name="vec">指定点</param>
/// <returns></returns>
public float DistanceOf(Vector2L vec)
{
float x1 = (float)System.Math.Pow(X - vec.X, 2);
float x2 = (float)System.Math.Pow(Y - vec.Y, 2);
return((float)System.Math.Pow(x1 + x2, 0.5d));
}
public override bool Equals(object obj)
{
if (!(obj is Vector2L))
{
return(false);
}
Vector2L v2 = (Vector2L)obj;
return(X == v2.X && Y == v2.Y);
}
/// <summary>
/// 向量减法
/// </summary>
/// <param name="vec"></param>
/// <returns></returns>
public Vector2L RED(Vector2L vec)
{
return(new Vector2L(X - vec.X, Y - vec.Y));
}
/// <summary>
/// 向量加法
/// </summary>
/// <param name="vec"></param>
/// <returns></returns>
public Vector2L ADD(Vector2L vec)
{
return(new Vector2L(X + vec.X, Y + vec.Y));
}