黑马之前，点在线上的判断

最新推荐文章于 2023-04-06 23:33:18 发布

zj_alex

最新推荐文章于 2023-04-06 23:33:18 发布

阅读量532

点赞数

CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/zj_alex/article/details/8646753

public double[] JudgeLine(Point pnt,Point[] pts)//在线上进行判断
        {
            double[] results = new double[pts.Length];

            for (int i = 0; i < pts.Length;i++)
            {
                for (int j = i + 1; j <= pts.Length; j++)
                {
                    
                    if (Math.Abs( j - i) > 1) { break; }//进行不重复的判断，1.2,2.3,1,3
                    if (j == pts.Length)
                    {
                        j = 0;
                    }

                    double SE = (Math.Sqrt(((Math.Abs(pts[i].X - pts[j].X)) * (Math.Abs(pts[i].X - pts[j].X))) + ((Math.Abs(pts[i].Y - pts[j].Y)) * (Math.Abs(pts[i].Y - pts[j].Y)))));
                    double xS = (Math.Sqrt(((Math.Abs(pnt.X - pts[i].X)) * (Math.Abs(pnt.X - pts[i].X))) + ((Math.Abs(pnt.Y - pts[i].Y)) * (Math.Abs(pnt.Y - pts[i].Y)))));
                    double xE = (Math.Sqrt(((Math.Abs(pnt.X - pts[j].X)) * (Math.Abs(pnt.X - pts[j].X))) + ((Math.Abs(pnt.Y - pts[j].Y)) * (Math.Abs(pnt.Y - pts[j].Y)))));
                    double result = xS + xE - SE;
                    results[i] = result;
                    if (j == 0)
                    { break; }
                    
                }
                
            }
            return results;
        }

http://blog.youkuaiyun.com/zj_alex/article/details/8646724 一个简单的winform程序