在旋转后的GraphicsPath中获取最左边的点

using System;
using System.Drawing;
using System.Drawing.Drawing2D;

public class Program
{
    public static void Main()
    {
        // 创建GraphicsPath对象并添加路径
        GraphicsPath path = new GraphicsPath();
        path.AddRectangle(new Rectangle(50, 50, 100, 100));

        // 创建旋转矩阵
        Matrix matrix = new Matrix();
        matrix.Rotate(45); // 以45度进行旋转

        // 对路径进行旋转
        path.Transform(matrix);

        // 遍历路径中的所有点，找到最左边的点
        PointF leftmostPoint = FindLeftmostPoint(path);

        // 输出最左边的点的坐标
        Console.WriteLine("Leftmost Point: ({0}, {1})", leftmostPoint.X, leftmostPoint.Y);

        // 绘制最左边的点
        using (Bitmap bitmap = new Bitmap(200, 200))
        using (Graphics graphics = Graphics.FromImage(bitmap))
        {
            graphics.Clear(Color.White);
            graphics.DrawEllipse(Pens.Red, leftmostPoint.X - 2, leftmostPoint.Y - 2, 4, 4);
            bitmap.Save("leftmost_point.png");
        }
    }

    // 找到路径中最左边的点
    public static PointF FindLeftmostPoint(GraphicsPath path)
    {
        PointF leftmostPoint = PointF.Empty;
        float leftmostX = float.MaxValue;

        foreach (PointF point in path.PathPoints)
        {
            if (point.X < leftmostX)
            {
                leftmostX = point.X;
                leftmostPoint = point;
            }
        }

        return leftmostPoint;
    }
}