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■ 힐버트 곡선(Hilbert Curve) 그리기

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TestProject.zip


MainForm.cs

 

 

using System;

using System.Drawing;

using System.Drawing.Drawing2D;

using System.Drawing.Text;

using System.Windows.Forms;

 

namespace TestProject

{

    /// <summary>

    /// 메인 폼

    /// </summary>

    public partial class MainForm : Form

    {

        //////////////////////////////////////////////////////////////////////////////////////////////////// Field

        ////////////////////////////////////////////////////////////////////////////////////////// Private

 

        #region Field

 

        /// <summary>

        /// 갱신 여부

        /// </summary>

        private bool refresh;

 

        /// <summary>

        /// 마지막 X

        /// </summary>

        private float lastX;

        

        /// <summary>

        /// 마지막 Y

        /// </summary>

        private float lastY;

 

        /// <summary>

        /// 비트맵

        /// </summary>

        private Bitmap bitmap;

 

        /// <summary>

        /// 난수 발생기

        /// </summary>

        private Random random;

 

        #endregion

 

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

        ////////////////////////////////////////////////////////////////////////////////////////// Public

 

        #region 생성자 - MainForm()

 

        /// <summary>

        /// 생성자

        /// </summary>

        public MainForm()

        {

            InitializeComponent();

 

            this.random = new Random(DateTime.Now.Millisecond);

        }

 

        #endregion

 

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method

        ////////////////////////////////////////////////////////////////////////////////////////// Private

        //////////////////////////////////////////////////////////////////////////////// Event

 

        #region 그리기 버튼 클릭시 처리하기 - drawButton_Click(sender, e)

 

        /// <summary>

        /// 그리기 버튼 클릭시 처리하기

        /// </summary>

        /// <param name="sender">이벤트 발생자</param>

        /// <param name="e">이벤트 인자</param>

        private void drawButton_Click(object sender, EventArgs e)

        {

            int depth = int.Parse(this.depthTextBox.Text);

 

            if(depth > 8)

            {

                DialogResult result = MessageBox.Show

                (

                    "깊이가 길면 그리는 시간이 오래 걸릴 수 있습니다(여하튼 대부분 검은 색이 됩니다). 계속 하시겠습니까?",

                    "확인",

                    MessageBoxButtons.YesNo,

                    MessageBoxIcon.Question

                );

 

                if(result == DialogResult.No)

                {

                    return;

                }

            }

 

            Cursor = Cursors.WaitCursor;

 

            Application.DoEvents();

 

            this.refresh = this.refreshCheckBox.Checked;

 

            float totalLength;

            float startX;

            float startY;

            float startLength;

 

            if(this.canvasPictureBox.ClientSize.Height < this.canvasPictureBox.ClientSize.Width)

            {

                totalLength = (float)(0.9 * this.canvasPictureBox.ClientSize.Height);

            }

            else

            {

                totalLength = (float)(0.9 * this.canvasPictureBox.ClientSize.Width);

            }

 

            startX = (this.canvasPictureBox.ClientSize.Width  - totalLength) / 2;

            startY = (this.canvasPictureBox.ClientSize.Height - totalLength) / 2;

 

            startLength = (float)(totalLength / (Math.Pow(2, depth) - 1));

 

            this.bitmap = new Bitmap(this.canvasPictureBox.ClientSize.Width, this.canvasPictureBox.ClientSize.Height);

 

            this.canvasPictureBox.Image = this.bitmap;

 

            using(Graphics graphics = Graphics.FromImage(bitmap))

            {

                graphics.InterpolationMode  = InterpolationMode.HighQualityBicubic;

                graphics.CompositingQuality = CompositingQuality.HighQuality;

                graphics.SmoothingMode      = SmoothingMode.HighQuality;

                graphics.TextRenderingHint  = TextRenderingHint.ClearTypeGridFit;

                graphics.PixelOffsetMode    = PixelOffsetMode.HighQuality;

 

                graphics.Clear(Color.White);

 

                this.lastX = (int)startX;

                this.lastY = (int)startY;

 

                DrawHilbertCurve(graphics, depth, startLength, 0);

            }

 

            this.canvasPictureBox.Refresh();

 

            Cursor = Cursors.Default;

        }

 

        #endregion

 

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

 

        #region 선 그리기 - DrawLine(graphics, deltaX, deltaY)

 

        /// <summary>

        /// 선 그리기

        /// </summary>

        /// <param name="graphics">그래픽스</param>

        /// <param name="deltaX">델타 X</param>

        /// <param name="deltaY">델타 Y</param>

        private void DrawLine(Graphics graphics, float deltaX, float deltaY)

        {

            Pen pen = new Pen(Color.FromArgb(this.random.Next(255), this.random.Next(255), this.random.Next(255)), 2);

 

            graphics.DrawLine(pen, this.lastX, this.lastY, this.lastX + deltaX, this.lastY + deltaY);

 

            this.lastX = this.lastX + deltaX;

            this.lastY = this.lastY + deltaY;

        }

 

        #endregion

        #region 힐버트 곡선 그리기 - DrawHilbertCurve(graphics, depth, deltaX, deltaY)

 

        /// <summary>

        /// 힐버트 곡선 그리기

        /// </summary>

        /// <param name="graphics">그래픽스</param>

        /// <param name="depth">깊이</param>

        /// <param name="deltaX">델타 X</param>

        /// <param name="deltaY">델타 Y</param>

        private void DrawHilbertCurve(Graphics graphics, int depth, float deltaX, float deltaY)

        {

            if(depth > 1)

            {

                DrawHilbertCurve(graphics, depth - 1, deltaY, deltaX);

            }

 

            DrawLine(graphics, deltaX, deltaY);

 

            if(depth > 1)

            {

                DrawHilbertCurve(graphics, depth - 1, deltaX, deltaY);

            }

 

            DrawLine(graphics, deltaY, deltaX);

 

            if(depth > 1)

            {

                DrawHilbertCurve(graphics, depth - 1, deltaX, deltaY);

            }

 

            DrawLine(graphics, -deltaX, -deltaY);

 

            if(depth > 1)

            {

                DrawHilbertCurve(graphics, depth - 1, -deltaY, -deltaX);

            }

 

            if(this.refresh)

            {

                this.canvasPictureBox.Refresh();

            }

        }

 

        #endregion

    }

}

 

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Posted by 사용자 icodebroker

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