[C#/WINFORM] 시어핀스키 가스켓(Sierpinski Gasket) 그리기

TestProject.zip

다운로드

▶ MainForm.cs

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : Form
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>
        /// 코너 포인트 리스트
        /// </summary>
        private List<PointF> cornerPointList;

        /// <summary>
        /// 마지막 포인트
        /// </summary>
        private PointF lastPoint;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainForm()
        {
            InitializeComponent();

            #region 이벤트를 설정한다.

            Load            += Form_Load;
            Resize          += Form_Resize;
            this.timer.Tick += timer_Tick;

            #endregion
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 폼 로드시 처리하기 - Form_Load(sender, e)

        /// <summary>
        /// 폼 로드시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void Form_Load(object sender, EventArgs e)
        {
            DefineCorner();
        }

        #endregion
        #region 폼 크기 조정시 처리하기 - Form_Resize(sender, e)

        /// <summary>
        /// 폼 크기 조정시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void Form_Resize(object sender, EventArgs e)
        {
            DefineCorner();

            using(Graphics graphics = CreateGraphics())
            {
                graphics.Clear(BackColor);
            }
        }

        #endregion
        #region 타이머 틱 처리하기 - timer_Tick(sender, e)

        /// <summary>
        /// 타이머 틱 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void timer_Tick(object sender, EventArgs e)
        {
            Random random = new Random();

            using(Graphics graphics = CreateGraphics())
            {
                foreach(PointF cornerPoint in this.cornerPointList)
                {
                    graphics.FillEllipse(Brushes.White, cornerPoint.X - 2, cornerPoint.Y - 2, 4, 4);

                    graphics.DrawEllipse(Pens.Blue, cornerPoint.X - 2, cornerPoint.Y - 2, 4, 4);
                }

                for(int i = 1; i <= 1000; i++)
                {
                    int j = random.Next(0, 3);

                    this.lastPoint = new PointF
                    (
                        (this.lastPoint.X + this.cornerPointList[j].X) / 2,
                        (this.lastPoint.Y + this.cornerPointList[j].Y) / 2
                    );

                    graphics.DrawLine
                    (
                        Pens.Red,
                        this.lastPoint.X,
                        this.lastPoint.Y,
                        this.lastPoint.X + 1,
                        this.lastPoint.Y + 1
                    );
                }
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 코너 정의하기 - DefineCorner()

        /// <summary>
        /// 코너 정의하기
        /// </summary>
        private void DefineCorner()
        {
            this.cornerPointList = new List<PointF>();

            this.cornerPointList.Add(new PointF(ClientSize.Width / 2, 10));
            this.cornerPointList.Add(new PointF(10, ClientSize.Height - 10));
            this.cornerPointList.Add(new PointF(ClientSize.Width - 10, ClientSize.Height - 10));

            this.lastPoint = this.cornerPointList[0];
        }

        #endregion
    }
}