一点A绕着B点旋转X度后的新坐标。

1. /// <summary>
   
2.        /// 获取A点绕B点旋转P度后的新坐标
   
3.        /// </summary>
   
4.        /// <param name="Angle">角度</param>
   
5.        /// <param name="CirPoint">圆心坐标</param>
   
6.        /// <param name="MovePoint">移动点的坐标</param>
   
7.        /// <param name="FlagInt">顺时针：1(默认)  逆时针:-1</param>
   
8.        /// <returns></returns>
   
9.        public static Point GetNewPoint(double Angle, Point CirPoint, Point MovePoint, int FlagInt = 1)
   
10.        {
    
11.            //将角度转换成弧度
    
12.            double Rage2 = Convert.ToDouble(Angle) / 180 * Math.PI;
    
13.            //计算新坐标X
    
14.            int newx = (int)((MovePoint.X - CirPoint.X) * Math.Cos(Rage2 * FlagInt) - (MovePoint.Y - CirPoint.Y) * Math.Sin(Rage2 * FlagInt));
    
15.            //计算新坐标Y
    
16.            int newy = (int)((MovePoint.Y - CirPoint.Y) * Math.Cos(Rage2 * FlagInt) + (MovePoint.X - CirPoint.X) * Math.Sin(Rage2 * FlagInt));
    
17.            //计算新坐标
    
18.            Point newpoint = new Point(CirPoint.X + newx, CirPoint.Y + newy);
    
19.            //返回新坐标
    
20.            return newpoint;
    
21.        }

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一点A绕着B点旋转X度后的新坐标。

1. /// <summary>
   
2.        /// 获取A点绕B点旋转P度后的新坐标
   
3.        /// </summary>
   
4.        /// <param name="Angle">角度</param>
   
5.        /// <param name="CirPoint">圆心坐标</param>
   
6.        /// <param name="MovePoint">移动点的坐标</param>
   
7.        /// <param name="FlagInt">顺时针：1(默认)  逆时针:-1</param>
   
8.        /// <returns></returns>
   
9.        public static Point GetNewPoint(double Angle, Point CirPoint, Point MovePoint, int FlagInt = 1)
   
10.        {
    
11.            //将角度转换成弧度
    
12.            double Rage2 = Convert.ToDouble(Angle) / 180 * Math.PI;
    
13.            //计算新坐标X
    
14.            int newx = (int)((MovePoint.X - CirPoint.X) * Math.Cos(Rage2 * FlagInt) - (MovePoint.Y - CirPoint.Y) * Math.Sin(Rage2 * FlagInt));
    
15.            //计算新坐标Y
    
16.            int newy = (int)((MovePoint.Y - CirPoint.Y) * Math.Cos(Rage2 * FlagInt) + (MovePoint.X - CirPoint.X) * Math.Sin(Rage2 * FlagInt));
    
17.            //计算新坐标
    
18.            Point newpoint = new Point(CirPoint.X + newx, CirPoint.Y + newy);
    
19.            //返回新坐标
    
20.            return newpoint;
    
21.        }

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