商朝の単位制による時計のソースコードです

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Takaku.ShangUnit;

namespace ClockShangUnit
{
   public partial class Form1 : Form
   {
       public Form1()
       {
           InitializeComponent();
       }

       ShangDateTime T;

       private void Form1_Shown(object sender, EventArgs e)
       {
           Refresh();
       }

       private void timer1_Tick(object sender, EventArgs e)
       {
           Refresh();
       }

       void Refresh()
       {
           T = new ShangDateTime(DateTime.Now);

           textBox1.Text = T.Year.ToString() + "年" + T.Month.ToString() + "月" + T.Day.ToString() + "日 [" + ((int)T.DayOfShangWeek).ToString() + "]";
           textBox2.Text = T.Hour.ToString("D2") + ":" + T.Minute.ToString("D2") + ":" + T.Second.ToString("D2") + "." + T.Millisecond.ToString("D3");

           pictureBox1.Refresh();
       }

       private void pictureBox1_Resize(object sender, EventArgs e)
       {
           Refresh();
       }

       private void pictureBox1_Paint(object sender, PaintEventArgs e)
       {
           Graphics g = e.Graphics;

           int size = Math.Min(pictureBox1.Width, pictureBox1.Height);
           g.DrawEllipse(new Pen(Color.Black, 2.0f), pictureBox1.Width / 2 - size / 2 + 10, pictureBox1.Height / 2 - size / 2 + 10, size - 20, size - 20);

           Point center = new Point(pictureBox1.Width / 2, pictureBox1.Height / 2);
           int _size = size - 20;

           for (int i = 0; i < 100; i++)
           {
               float r = (float)((i / 100.0) * (Math.PI * 2));

               if (i % 10 != 0)
               {
                   Point p = new Point((int)(Math.Sin(r) * (_size * 0.95 / 2)), (int)(Math.Cos(r) * (_size * 0.95 / 2)));
                   g.DrawRectangle(Pens.Black, p.X + center.X, -p.Y + center.Y, 1, 1);
               }
               else
               {
                   Point p = new Point((int)(Math.Sin(r) * (_size * 0.95 / 2)), (int)(Math.Cos(r) * (_size * 0.95 / 2)));
                   Point p_ = new Point((int)(Math.Sin(r) * (_size * 0.85 / 2)), (int)(Math.Cos(r) * (_size * 0.85 / 2)));
                   g.DrawLine(new Pen(Color.Black, 2.0f), new Point(p.X + center.X, -p.Y + center.Y), new Point(p_.X + center.X, -p_.Y + center.Y));
               }
           }

           float rHourHand = (float)(((T.Hour * 10000 + T.Minute * 100 + T.Second) / 100000.0) * (Math.PI * 2));
           Point hourHand = new Point((int)(Math.Sin(rHourHand) * (_size * 0.6 / 2)), (int)(Math.Cos(rHourHand) * (_size * 0.6 / 2)));
           g.DrawLine(new Pen(Color.Black, 2.0f), center, new Point(hourHand.X + center.X, - hourHand.Y + center.Y));

           float rMinuteHand = (float)(((T.Minute * 100 + T.Second) / 10000.0) * (Math.PI * 2));
           Point minuteHand = new Point((int)(Math.Sin(rMinuteHand) * (_size * 0.8 / 2)), (int)(Math.Cos(rMinuteHand) * (_size * 0.8 / 2)));
           g.DrawLine(new Pen(Color.Black, 2.0f), center, new Point(minuteHand.X + center.X, -minuteHand.Y + center.Y));

           float rSecondHand = (float)(((T.Second * 1000 + T.Millisecond) / 100000.0) * (Math.PI * 2));
           Point secondHand = new Point((int)(Math.Sin(rSecondHand) * (_size * 0.8 / 2)), (int)(Math.Cos(rSecondHand) * (_size * 0.8 / 2)));
           g.DrawLine(new Pen(Color.Red, 1.0f), center, new Point(secondHand.X + center.X, -secondHand.Y + center.Y));
       }
   }
}