■ UserControl 클래스를 사용해 등고선 차트 컨트롤을 만드는 방법을 보여준다.
▶ ContourChartControl.cs
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using System.Collections.Generic; using System.Drawing; using System.Windows.Forms; namespace TestProject; /// <summary> /// 등고선 차트 컨트롤 /// </summary> public partial class ContourChartControl : UserControl { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 레벨 배열 /// </summary> private float[] levelArray; /// <summary> /// 색상 배열 /// </summary> private Color[] colorArray; /// <summary> /// 데이터 배열 /// </summary> private float[,] valueArray; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - ContourChartControl() /// <summary> /// 생성자 /// </summary> public ContourChartControl() { InitializeComponent(); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 데이터 설정하기 - SetData(levelArray, colorArray, valueArray) /// <summary> /// 데이터 설정하기 /// </summary> /// <param name="levelArray">레벨 배열</param> /// <param name="colorArray">색상 배열</param> /// <param name="valueArray">값 배열</param> public void SetData(float[] levelArray, Color[] colorArray, float[,] valueArray) { this.levelArray = levelArray; this.colorArray = colorArray; this.valueArray = valueArray; Invalidate(); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 페인트 처리하기 - OnPaint(e) /// <summary> /// 페인트 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); if(this.valueArray == null || this.levelArray == null || this.colorArray == null) { return; } DrawContour(e.Graphics); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 포인트 스케일 설정하기 - ScalePoint(sourcePoint) /// <summary> /// 포인트 스케일 설정하기 /// </summary> /// <param name="sourcePoint">소스 포인트</param> /// <returns>스케일 포인트</returns> private PointF ScalePoint(PointF sourcePoint) { return new PointF(sourcePoint.X * Width / (valueArray.GetLength(0) - 1), Height - sourcePoint.Y * Height / (valueArray.GetLength(1) - 1)); } #endregion #region 등고선 셀 그리기 - DrawContourCell(graphics, x, y, valueArray, lowLevel, highLevel, color) /// <summary> /// 등고선 셀 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="x">X</param> /// <param name="y">Y</param> /// <param name="valueArray">값 배열</param> /// <param name="lowLevel">하한 레벨</param> /// <param name="highLevel">상한 레벨</param> /// <param name="color">색상</param> private void DrawContourCell(Graphics graphics, int x, int y, float[] valueArray, float lowLevel, float highLevel, Color color) { List<PointF> pointList = new List<PointF>(); for(int i = 0; i < 4; i++) { int j = (i + 1) % 4; if((valueArray[i] < lowLevel && valueArray[j] >= lowLevel) || (valueArray[i] >= lowLevel && valueArray[j] < lowLevel)) { float t = (lowLevel - valueArray[i]) / (valueArray[j] - valueArray[i]); pointList.Add ( new PointF ( x + (i % 2) + t * ((j % 2) - (i % 2)), y + (i / 2) + t * ((j / 2) - (i / 2)) ) ); } } if(pointList.Count == 2) { using(Pen pen = new Pen(color, 1)) { graphics.DrawLine(pen, ScalePoint(pointList[0]), ScalePoint(pointList[1])); } } } #endregion #region 등고선 그리기 - DrawContour(graphics) /// <summary> /// 등고선 그리기 /// </summary> /// <param name="graphics">그래픽스</param> private void DrawContour(Graphics graphics) { int width = this.valueArray.GetLength(0); int height = this.valueArray.GetLength(1); for(int x = 0; x < width - 1; x++) { for(int y = 0; y < height - 1; y++) { float[] cellValueArray = new float[] { valueArray[x , y ], valueArray[x + 1, y ], valueArray[x + 1, y + 1], valueArray[x , y + 1] }; for(int i = 0; i < this.levelArray.Length - 1; i++) { DrawContourCell(graphics, x, y, cellValueArray, this.levelArray[i], this.levelArray[i + 1], this.colorArray[i]); } } } } #endregion } |
▶ MainForm.cs
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using System; using System.Drawing; using System.Windows.Forms; namespace TestProject; /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); float[] levelArray = { 0f, 0.2f, 0.4f, 0.6f, 0.8f, 1f }; Color[] colorArray = { Color.Blue, Color.Green, Color.Yellow, Color.Orange, Color.Red }; float[,] valueArray = GetValueArray(); contourChartControl.SetData(levelArray, colorArray, valueArray); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 값 배열 구하기 - GetValueArray() /// <summary> /// 값 배열 구하기 /// </summary> /// <returns>값 배열</returns> public float[,] GetValueArray() { int width = this.contourChartControl.Width; int height = this.contourChartControl.Height; float[,] valueArray = new float[width, height]; for(int x = 0; x < width; x++) { for(int y = 0; y < height; y++) { float xNormalized = (float)x / width * 10; float yNormalized = (float)y / height * 10; valueArray[x, y] = (float)(Math.Sin(xNormalized) * Math.Cos(yNormalized) + Math.Cos(xNormalized * 0.5f) * Math.Sin(yNormalized * 0.5f)); valueArray[x, y] = (valueArray[x, y] + 1) / 2; } } return valueArray; } #endregion } |
