如何在面板上绘制这张照片 [英] how to draw this picture on a panel

问题描述

好的我想在面板上尝试这张照片：

ok I am trying to this picture on a panel :

现在它有1- 8但是用户可以添加更多类似

right now it has 1-8 but the user can add more like 

1-20或只需1-4。

1-20 or just do 1-4 .

这里是我的代码：

  int start_X = Cube_Panel.Width / 16;
            int start_Y = Cube_Panel.Height / 16;
            int X = start_X;
            int Y = start_Y;
            for (int i = 0; i < 9; i++)
            {
                e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
                e.Graphics.FillEllipse(Brushes.Green, new Rectangle(X, Y, 25, 25));

                X = (int) (X + Math.Cos(180 ) - 50) ;
                Y = (int)(Y + Math.Sin(180 ) + 50); 
            }
           
            Graphics l = e.Graphics;
            Pen p = new Pen(Color.Gray, 5);
            l.DrawEllipse(p,start_X, start_Y, 200, 200);
            l.Dispose();

但它无效...

我做错了什么？

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