我需要在面板中绘制10000点，而不会阻止UI

Question

我需要在面板中绘制10000点而不会阻止UI。我正在使用C＃。目前，我正在面板涂料活动中进行绘图。我该怎么做，而无需阻止UI。我已经尝试在单独的线程上进行"绘画"，但未能成功

private void Panel1Paint(object sender, PaintEventArgs paintEventArgs)
    {
        var g = paintEventArgs.Graphics;
        g.DrawLine(new Pen(Color.Black),
                   new Point(0, panel1.Width / 2),
                   new Point(panel1.Height, panel1.Width / 2));
        g.DrawLine(new Pen(Color.Black),
                   new Point(panel1.Width / 2, 0),
                   new Point(panel1.Width / 2, panel1.Height));
        for (int i = 0; i < centres.Length; i++)
        {
            g.FillEllipse(new SolidBrush(colors[i]), centres[i].X, centres[i].Y, 10, 10);
            Console.Out.WriteLine(centres[i].ToCart());
        }
        for (int i = 0; i < 10000; i++)
        {
            int zona = r.Next(0, 3);
            double p_gauss, p_rand;
            int new_x;
            int new_y;
            do
            {
                new_x = r.Next(0, 400);
                p_gauss = Gauss(new_x, centres[zona].X, s[zona].X);
                p_rand = r.NextDouble();
            } while (p_gauss < p_rand);
            do
            {
                new_y = r.Next(0, 400);
                p_gauss = Gauss(new_y, centres[zona].Y, s[zona].Y);
                p_rand = r.NextDouble();
            } while (p_gauss < p_rand);
            g.DrawEllipse(new Pen(colors[zona], 2), new_x, new_y, 1, 1);
        }
    }

Answer 1

在线程中在位图上进行绘画。使成品位图可用于您的表格，并让油漆事件一次绘制整个位图。