[C#/WINFORM] Bitmap 클래스 : 스크롤 가능한 육각형 몽타주 비트맵 사용하기

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TestProject.zip

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▶ HexagonHelper.cs

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

namespace TestProject
{
    /// <summary>
    /// 육각형 헬퍼
    /// </summary>
    public static class HexagonHelper
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Static
        //////////////////////////////////////////////////////////////////////////////// Public

        #region 육각형 너비 구하기 - GetHexgonWidth(height)

        /// <summary>
        /// 육각형 너비 구하기
        /// </summary>
        /// <param name="height">높이</param>
        /// <returns>육각형 너비</returns>
        public static float GetHexgonWidth(float height)
        {
            return (float)(4 * (height / 2 / Math.Sqrt(3)));
        }

        #endregion
        #region 육각형 인덱스 설정하기 - SetHexgonIndex(x, y, height, row, column)

        /// <summary>
        /// 육각형 인덱스 설정하기
        /// </summary>
        /// <param name="x">X</param>
        /// <param name="y">Y</param>
        /// <param name="height">육각형 높이</param>
        /// <param name="row">행</param>
        /// <param name="column">열</param>
        public static void SetHexgonIndex(float x, float y, float height, out int row, out int column)
        {
            float width = GetHexgonWidth(height);

            column = (int)(x / (width * 0.75f));

            if(column % 2 == 0)
            {
                row = (int)Math.Floor(y / height);
            }
            else
            {
                row = (int)Math.Floor((y - height / 2) / height);
            }

            float testX = column * width * 0.75f;
            float testY = row * height;
 
            if(column % 2 != 0)
            {
                testY += height / 2;
            }

            bool isAbove = false;
            bool isBelow = false;

            float deltaX = x - testX;

            if(deltaX < width / 4)
            {
                float deltaY = y - (testY + height / 2);

                if(deltaX < 0.001)
                {
                    if(deltaY < 0)
                    {
                        isAbove = true;
                    }

                    if(deltaY > 0)
                    {
                        isBelow = true;
                    }
                }
                else if(deltaY < 0)
                {
                    if(-deltaY / deltaX > Math.Sqrt(3))
                    {
                        isAbove = true;
                    }
                }
                else
                {
                    if(deltaY / deltaX > Math.Sqrt(3))
                    {
                        isBelow = true;
                    }
                }
            }

            if(isAbove)
            {
                if(column % 2 == 0)
                {
                    row--;
                }

                column--;
            }
            else if(isBelow)
            {
                if(column % 2 != 0)
                {
                    row++;
                }

                column--;
            }
        }

        #endregion
        #region 포인트 배열 구하기 - GetPointArray(height, row, column, minimumX, minimumY)

        /// <summary>
        /// 포인트 배열 구하기
        /// </summary>
        /// <param name="height">육각형 높이</param>
        /// <param name="row">행</param>
        /// <param name="column">열</param>
        /// <param name="minimumX">최소 X</param>
        /// <param name="minimumY">최소 Y</param>
        /// <returns>포인트 배열</returns>
        public static PointF[] GetPointArray(float height, float row, float column, float minimumX, float minimumY)
        {
            float width = GetHexgonWidth(height);

            float y = height / 2;
            float x = 0;

            y += row * height;

            if(column % 2 != 0)
            {
                y += height / 2;
            }

            x += column * (width * 0.75f);

            return new PointF[]
            {
                new PointF(minimumX + x                , minimumY + y             ),
                new PointF(minimumX + x + width * 0.25f, minimumY + y - height / 2),
                new PointF(minimumX + x + width * 0.75f, minimumY + y - height / 2),
                new PointF(minimumX + x + width        , minimumY + y             ),
                new PointF(minimumX + x + width * 0.75f, minimumY + y + height / 2),
                new PointF(minimumX + x + width * 0.25f, minimumY + y + height / 2)
            };
        }

        #endregion
        #region 육각형 그리드 그리기 - DrawHexgonGrid(graphics, pen, minimumX, maximumX, minimumY, maximumY, height)

        /// <summary>
        /// 육각형 그리드 그리기
        /// </summary>
        /// <param name="graphics">그래픽스</param>
        /// <param name="pen">펜</param>
        /// <param name="minimumX">최소 X</param>
        /// <param name="maximumX">최대 X</param>
        /// <param name="minimumY">최소 Y</param>
        /// <param name="maximumY">최대 Y</param>
        /// <param name="height">육각형 높이</param>
        public static void DrawHexgonGrid(Graphics graphics, Pen pen, float minimumX, float maximumX, float minimumY, float maximumY, float height)
        {
            for(int row = 0; ; row++)
            {
                PointF[] pointArray = HexagonHelper.GetPointArray(height, row, 0, minimumX, minimumY);

                if(pointArray[4].Y > maximumY)
                {
                    break;
                }

                for(int column = 0; ; column++)
                {
                    pointArray = HexagonHelper.GetPointArray(height, row, column, minimumX, minimumX);

                    if(pointArray[3].X > maximumX)
                    {
                        break;
                    }

                    if(pointArray[4].Y <= maximumY)
                    {
                        graphics.DrawPolygon(pen, pointArray);
                    }
                }
            }
        }

        #endregion
        #region 다각형 내에서 이미지 그리기 - DrawImageInPolygon(graphcis, pointArray, image)

        /// <summary>
        /// 다각형 내에서 이미지 그리기
        /// </summary>
        /// <param name="graphcis">그래픽스</param>
        /// <param name="pointArray">포인트 배열</param>
        /// <param name="image">이미지</param>
        public static void DrawImageInPolygon(Graphics graphcis, PointF[] pointArray, Image image)
        {
            float minimumX;
            float maximumX;
            float minimumY;
            float maximumY;

            SetPolygonBoundRectangle(pointArray, out minimumX, out maximumX, out minimumY, out maximumY);

            float width   = maximumX - minimumX;
            float height  = maximumY - minimumY;
            float centerX = (minimumX + maximumX) / 2f;
            float centerY = (minimumY + maximumY) / 2f;

            float scaleX = width / image.Width;
            float scaleY = height / image.Height;
            float scale  = Math.Max(scaleX, scaleY);

            float scaledWdth   = image.Width  * scale;
            float scaledHeight = image.Height * scale;
            float radiusX      = scaledWdth   / 2f;
            float radiusY      = scaledHeight / 2f;

            RectangleF sourceRectangle = new RectangleF(0, 0, image.Width, image.Height);

            PointF[] targetPointArray =
            {
                new PointF(centerX - radiusX,  centerY - radiusY),
                new PointF(centerX + radiusX,  centerY - radiusY),
                new PointF(centerX - radiusX,  centerY + radiusY)
            };

            GraphicsPath graphicsPath = new GraphicsPath();

            graphicsPath.AddPolygon(pointArray);

            GraphicsState graphicsState = graphcis.Save();

            graphcis.SetClip(graphicsPath);

            graphcis.DrawImage(image, targetPointArray, sourceRectangle, GraphicsUnit.Pixel);

            graphcis.Restore(graphicsState);
        }

        #endregion

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

        #region 다각형 테두리 사각형 설정하기 - SetPolygonBoundRectangle(pointArray, minimumX, maximumX, minimumY, maximumY)

        /// <summary>
        /// 다각형 테두리 사각형 설정하기
        /// </summary>
        /// <param name="pointArray">포인트 배열</param>
        /// <param name="minimumX">최소 X</param>
        /// <param name="maximumX">최대 X</param>
        /// <param name="minimumY">최소 Y</param>
        /// <param name="maximumY">최대 Y</param>
        private static void SetPolygonBoundRectangle(PointF[] pointArray, out float minimumX, out float maximumX, out float minimumY, out float maximumY)
        {
            minimumX = pointArray[0].X;
            maximumX = minimumX;
            minimumY = pointArray[0].Y;
            maximumY = minimumY;

            foreach(PointF point in pointArray)
            {
                if(minimumX > point.X)
                {
                    minimumX = point.X;
                }

                if(maximumX < point.X)
                {
                    maximumX = point.X;
                }

                if(minimumY > point.Y)
                {
                    minimumY = point.Y;
                }

                if(maximumY < point.Y)
                {
                    maximumY = point.Y;
                }
            }
        }

        #endregion
    }
}

 

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▶ Hexagon.cs

using System.Drawing;
using System.IO;

namespace TestProject
{
    /// <summary>
    /// 육각형
    /// </summary>
    public class Hexagon
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region Field

        /// <summary>
        /// 행
        /// </summary>
        public int Row;
        
        /// <summary>
        /// 열
        /// </summary>
        public int Column;

        /// <summary>
        /// 비트맵
        /// </summary>
        public Bitmap Bitmap;

        /// <summary>
        /// 파일 경로
        /// </summary>
        public string FilePath;

        #endregion

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

        #region 생성자 - Hexagon(row, column, bitmap, filePath)

        /// <summary>
        /// 생성자
        /// </summary>
        /// <param name="row">행</param>
        /// <param name="column">열</param>
        /// <param name="bitmap">비트맵</param>
        /// <param name="filePath">파일 경로</param>
        public Hexagon(int row, int column, Bitmap bitmap, string filePath)
        {
            Row    = row;
            Column = column;
            Bitmap = bitmap;

            FileInfo fileInfo = new FileInfo(filePath);

            FilePath = fileInfo.Name;
        }

        #endregion
    }
}

 

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▶ MainForm.cs

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.IO;
using System.Windows.Forms;

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

        #region Field

        /// <summary>
        /// 육각형 높이
        /// </summary>
        private float hexgonHeight = 200;

        /// <summary>
        /// 테두리 두께
        /// </summary>
        private float borderThickness = 5;
 
        /// <summary>
        /// 육각형 리스트
        /// </summary>
        private List<Hexagon> hexagonList = new List<Hexagon>();

        /// <summary>
        /// 행 수
        /// </summary>
        private int rowCount = 1;
        
        /// <summary>
        /// 열 수
        /// </summary>
        private int columnCount = 1;

        /// <summary>
        /// 비트맵
        /// </summary>
        private Bitmap bitmap = null;

        #endregion

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

        #region 생성자 - MainForm()

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

            this.openMenuItem.Click                 += openMenuItem_Click;
            this.saveAsMenuItem.Click               += saveAsMenuItem_Click;
            this.exitMenuItem.Click                 += exitMenuItem_Click;
            this.hexagonHeightTextBox.TextChanged   += hexagonHeightTextBox_TextChanged;
            this.borderThicknessTextBox.TextChanged += hexagonHeightTextBox_TextChanged;
            this.borderColorPictureBox.Click        += borderColorPictureBox_Click;
            this.backgroundColorPictureBox.Click    += backgroundColorPictureBox_Click;
            this.createButton.Click                 += createButton_Click;
            this.pictureBox.MouseMove               += pictureBox_MouseMove;
            this.pictureBox.MouseClick              += pictureBox_MouseClick;
        }

        #endregion

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

        #region 디렉토리에서 파일 열기 메뉴 항목 클릭시 처리하기 - openMenuItem_Click(sender, e)

        /// <summary>
        /// 디렉토리에서 파일 열기 메뉴 항목 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void openMenuItem_Click(object sender, EventArgs e)
        {
            if(this.openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                FileInfo fileInfo1 = new FileInfo(this.openFileDialog1.FileName);

                DirectoryInfo directoryInfo = fileInfo1.Directory;

                List<FileInfo> fileInfoList = new List<FileInfo>();

                foreach(FileInfo fileInfo2 in directoryInfo.GetFiles())
                {
                    string fileExtension = fileInfo2.Extension.ToLower().Replace(".", "");

                    if
                    (
                        (fileExtension == "bmp" ) ||
                        (fileExtension == "png" ) ||
                        (fileExtension == "jpg" ) ||
                        (fileExtension == "jpeg") ||
                        (fileExtension == "gif" ) ||
                        (fileExtension == "tiff")
                    )
                    {
                        fileInfoList.Add(fileInfo2);
                    }
                }

                int rowCount    = (int)Math.Sqrt(fileInfoList.Count);
                int columnCount = rowCount;

                if(rowCount * columnCount < fileInfoList.Count)
                {
                    columnCount++;
                }

                if(rowCount * columnCount < fileInfoList.Count)
                {
                    rowCount++;
                }

                this.hexagonList = new List<Hexagon>();

                int index = 0;

                for(int row = 0; row < rowCount; row++)
                {
                    for(int column = 0; column < columnCount; column++)
                    {
                        string name     = fileInfoList[index].Name;
                        string filePath = fileInfoList[index].FullName;

                        Bitmap bitmap = LoadBitmap(filePath);

                        this.hexagonList.Add(new Hexagon(row, column, bitmap, name));

                        index++;

                        if(index >= fileInfoList.Count)
                        {
                            break;
                        }
                    }

                    if(index >= fileInfoList.Count)
                    {
                        break;
                    }
                }

                MakeGrid();
            }
        }

        #endregion
        #region 다른 이름으로 저장 메뉴 항목 클릭시 처리하기 - saveAsMenuItem_Click(sender, e)

        /// <summary>
        /// 다른 이름으로 저장 메뉴 항목 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void saveAsMenuItem_Click(object sender, EventArgs e)
        {
            if(this.saveFileDialog.ShowDialog() == DialogResult.OK)
            {
                SaveImage(this.bitmap, this.saveFileDialog.FileName);
            }
        }

        #endregion
        #region 종료 메뉴 항목 클릭시 처리하기 - exitMenuItem_Click(sender, e)

        /// <summary>
        /// 종료 메뉴 항목 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void exitMenuItem_Click(object sender, EventArgs e)
        {
            Close();
        }

        #endregion
        #region 육각형 높이 텍스트 박스 텍스트 변경시 처리하기 - hexagonHeightTextBox_TextChanged(sender, e)

        /// <summary>
        /// 육각형 높이 텍스트 박스 텍스트 변경시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void hexagonHeightTextBox_TextChanged(object sender, EventArgs e)
        {
            float height;
            float thickness;

            if(!float.TryParse(this.hexagonHeightTextBox.Text, out height) || height < 10)
            {
                return;
            }

            if(!float.TryParse(this.borderThicknessTextBox.Text, out thickness))
            {
                return;
            }

            this.hexgonHeight    = height;
            this.borderThickness = thickness;

            this.pictureBox.Refresh();
        }

        #endregion
        #region 테두리 색상 픽처 박스 클릭시 처리하기 - borderColorPictureBox_Click(sender, e)

        /// <summary>
        /// 테두리 색상 픽처 박스 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void borderColorPictureBox_Click(object sender, EventArgs e)
        {
            this.colorDialog.Color = this.borderColorPictureBox.BackColor;

            if(this.colorDialog.ShowDialog() == DialogResult.OK)
            {
                this.borderColorPictureBox.BackColor = this.colorDialog.Color;

                this.pictureBox.Refresh();
            }
        }

        #endregion
        #region 배경 색상 픽처 박스 클릭시 처리하기 - backgroundColorPictureBox_Click(sender, e)

        /// <summary>
        /// 배경 색상 픽처 박스 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void backgroundColorPictureBox_Click(object sender, EventArgs e)
        {
            this.colorDialog.Color = this.backgroundColorPictureBox.BackColor;

            if(this.colorDialog.ShowDialog() == DialogResult.OK)
            {
                this.backgroundColorPictureBox.BackColor = this.colorDialog.Color;

                this.pictureBox.Refresh();
            }
        }

        #endregion
        #region 생성 버튼 클릭시 처리하기 - createButton_Click(sender, e)

        /// <summary>
        /// 생성 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void createButton_Click(object sender, EventArgs e)
        {
            MakeGrid();

            this.pictureBox.Visible = true;
        }

        #endregion
        #region 픽처 박스 마우스 이동시 처리하기 - pictureBox_MouseMove(sender, e)

        /// <summary>
        /// 픽처 박스 마우스 이동시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void pictureBox_MouseMove(object sender, MouseEventArgs e)
        {
            int row;
            int column;

            HexagonHelper.SetHexgonIndex(e.X, e.Y, this.hexgonHeight, out row, out column);

            int index = FindHexagon(row, column);

            string indexString = "(" + row.ToString() + ", " + column.ToString() + ")";

            if(index < 0)
            {
                Text = $"Bitmap 클래스 : 스크롤 가능한 육각형 몽타주 비트맵 사용하기 : {indexString}";
            }
            else
            {
                string name = this.hexagonList[index].FilePath;

                int position = name.IndexOf('.');

                Text = $"{indexString} {name.Substring(0, position)}";
            }
        }

        #endregion
        #region 픽처 박스 마우스 클릭시 처리하기 - pictureBox_MouseClick(sender, e)

        /// <summary>
        /// 픽처 박스 마우스 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void pictureBox_MouseClick(object sender, MouseEventArgs e)
        {
            int row;
            int column;

            HexagonHelper.SetHexgonIndex(e.X, e.Y, this.hexgonHeight, out row, out column);

            RemoveHexagon(row, column);

            if(this.openFileDialog2.ShowDialog() == DialogResult.OK)
            {
                Bitmap bitmap = LoadBitmap(openFileDialog2.FileName);

                this.hexagonList.Add(new Hexagon(row, column, bitmap, openFileDialog2.FileName));
            }

            MakeGrid();
        }

        #endregion

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

        #region 비트맵 로드하기 - LoadBitmap(filePath)

        /// <summary>
        /// 비트맵 로드하기
        /// </summary>
        /// <param name="filePath">파일 경로</param>
        /// <returns>비트맵</returns>
        private Bitmap LoadBitmap(string filePath)
        {
            using(Bitmap bitmap = new Bitmap(filePath))
            {
                return new Bitmap(bitmap);
            }
        }

        #endregion
        #region 그리드 테두리 사각형 찾기 - FindGridBoundRectangle(maximumX, maximumY)

        /// <summary>
        /// 그리드 테두리 사각형 찾기
        /// </summary>
        /// <param name="maximumX">최대 X</param>
        /// <param name="maximumY">최대 Y</param>
        private void FindGridBoundRectangle(out float maximumX, out float maximumY)
        {
            maximumX = 0;
            maximumY = 0;

            float minimumX = this.borderThickness / 2f;

            PointF[] pointArray;

            pointArray = HexagonHelper.GetPointArray
            (
                this.hexgonHeight,
                this.rowCount - 1,
                this.columnCount - 1,
                minimumX,
                minimumX
            );

            if(maximumX < pointArray[3].X)
            {
                maximumX = pointArray[3].X;
            }

            if(maximumY < pointArray[4].Y)
            {
                maximumY = pointArray[4].Y;
            }

            pointArray = HexagonHelper.GetPointArray
            (
                this.hexgonHeight,
                this.rowCount - 1,
                this.columnCount - 1,
                minimumX,
                minimumX
            );

            if(maximumX < pointArray[3].X)
            {
                maximumX = pointArray[3].X;
            }

            if(maximumY < pointArray[4].Y)
            {
                maximumY = pointArray[4].Y;
            }

            maximumX += minimumX;
            maximumY += minimumX;
        }

        #endregion
        #region 그리드 그리기 - DrawGrid(graphics, maximumX, maximumY)

        /// <summary>
        /// 그리드 그리기
        /// </summary>
        /// <param name="graphics">그래픽스</param>
        /// <param name="maximumX">최대 X</param>
        /// <param name="maximumY">최대 Y</param>
        private void DrawGrid(Graphics graphics, int maximumX, int maximumY)
        {
            graphics.Clear(this.backgroundColorPictureBox.BackColor);

            graphics.SmoothingMode = SmoothingMode.AntiAlias;

            float minimumX = this.borderThickness / 2f;

            foreach(Hexagon hexagon in this.hexagonList)
            {
                PointF[] pointArray = HexagonHelper.GetPointArray
                (
                    this.hexgonHeight,
                    hexagon.Row,
                    hexagon.Column,
                    minimumX,
                    minimumX
                );

                if(pointArray[3].X > maximumX)
                {
                    continue;
                }

                if(pointArray[4].Y > maximumY)
                {
                    continue;
                }

                HexagonHelper.DrawImageInPolygon
                (
                    graphics,
                    HexagonHelper.GetPointArray
                    (
                        this.hexgonHeight,
                        hexagon.Row,
                        hexagon.Column,
                        minimumX,
                        minimumX
                    ),
                    hexagon.Bitmap
                );
            }

            using(Pen pen = new Pen(this.borderColorPictureBox.BackColor, this.borderThickness))
            {
                HexagonHelper.DrawHexgonGrid
                (
                    graphics,
                    pen,
                    minimumX,
                    maximumX,
                    minimumX,
                    maximumY,
                    this.hexgonHeight
                );
            }
        }

        #endregion
        #region 그리드 만들기 - MakeGrid()

        /// <summary>
        /// 그리드 만들기
        /// </summary>
        private void MakeGrid()
        {
            if(!int.TryParse(this.rowCountTextBox.Text, out this.rowCount))
            {
                return;
            }

            if(!int.TryParse(this.columnCountTextBox.Text, out this.columnCount))
            {
                return;
            }

            float maximumX;
            float maximumY;

            FindGridBoundRectangle(out maximumX, out maximumY);

            int width  = (int)maximumX + 1;
            int height = (int)maximumY + 1;

            this.bitmap = new Bitmap(width, height);

            using(Graphics graphics = Graphics.FromImage(this.bitmap))
            {
                DrawGrid(graphics, width, height);
            }

            this.pictureBox.Image = this.bitmap;

            this.saveAsMenuItem.Enabled = true;
        }

        #endregion
        #region 이미지 저장하기 - SaveImage(image, filePath)

        /// <summary>
        /// 이미지 저장하기
        /// </summary>
        /// <param name="image">이미지</param>
        /// <param name="filePath">파일 경로</param>
        private void SaveImage(Image image, string filePath)
        {
            string fileExtension = Path.GetExtension(filePath);

            switch(fileExtension.ToLower())
            {
                case ".bmp"  : image.Save(filePath, ImageFormat.Bmp ); break;
                case ".exif" : image.Save(filePath, ImageFormat.Exif); break;
                case ".gif"  : image.Save(filePath, ImageFormat.Gif ); break;
                case ".jpg"  :
                case ".jpeg" : image.Save(filePath, ImageFormat.Jpeg); break;
                case ".png"  : image.Save(filePath, ImageFormat.Png ); break;
                case ".tif"  :
                case ".tiff" : image.Save(filePath, ImageFormat.Tiff); break;
                default      : throw new NotSupportedException($"알 수 없는 파일 확장자 : {fileExtension}");
            }
        }

        #endregion
        #region 육각형 찾기 - FindHexagon(row, column)

        /// <summary>
        /// 육각형 찾기
        /// </summary>
        /// <param name="row">행</param>
        /// <param name="column">열</param>
        /// <returns>인덱스</returns>
        private int FindHexagon(int row, int column)
        {
            for (int i = this.hexagonList.Count - 1; i >= 0; i--)
            {
                if((this.hexagonList[i].Row == row) && (this.hexagonList[i].Column == column))
                {
                        return i;
                }
            }

            return -1;
        }

        #endregion
        #region 육각형 제거하기 - RemoveHexagon(row, column)

        /// <summary>
        /// 육각형 제거하기
        /// </summary>
        /// <param name="row">행</param>
        /// <param name="column">열</param>
        private void RemoveHexagon(int row, int column)
        {
            int index = FindHexagon(row,column);

            if(index >= 0)
            {
                this.hexagonList.RemoveAt(index);
            }
        }

        #endregion
    }
}

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