■ CursorTool 클래스를 사용해 라인 시리즈를 보간하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Text; using System.Windows.Forms; using Steema.TeeChart.Drawing; using Steema.TeeChart.Styles; using Steema.TeeChart.Tools; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 커서 툴 /// </summary> private CursorTool cursorTool; /// <summary> /// 현재 X /// </summary> private double currentX; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); Text = "CursorTool 클래스 : 라인 시리즈 보간하기"; this.showMarkerCheckBox.Checked = true; this.tChart.Panel.Pen = new ChartPen(Color.Black); #region 라인을 추가한다. for(int i = 0; i < 3; i++) { Line line = new Line(); line.Pointer.HorizSize = 3; line.Pointer.VertSize = 3; line.Pointer.Visible = true; if(i == 0) { line.Pointer.Style = PointerStyles.Rectangle; } else if(i == 1) { line.Pointer.Style = PointerStyles.Circle; } else { line.Pointer.Style = PointerStyles.Triangle; } line.FillSampleValues(20); this.tChart.Series.Add(line); } #endregion #region 커서 툴을 설정한다. this.cursorTool = new CursorTool(); this.cursorTool.Pen.Style = DashStyle.Dash; this.cursorTool.Style = CursorToolStyles.Vertical; this.cursorTool.FollowMouse = true; this.tChart.Tools.Add(this.cursorTool); #endregion #region 이벤트를 설정한다. Load += Form_Load; this.cursorTool.Change += cursorTool_Change; this.tChart.AfterDraw += tChart_AfterDraw; #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) { cursorTool_Change(this.tChart, new CursorChangeEventArgs()); } #endregion #region 커서 툴 변경시 처리하기 - cursorTool_Change(sender, e) /// <summary> /// 커서 툴 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void cursorTool_Change(object sender, CursorChangeEventArgs e) { this.currentX = e.XValue; StringBuilder stringBuilder = new StringBuilder(); for(int i = 0; i < this.tChart.Series.Count; i++) { if(this.tChart.Series[i] is Custom) { stringBuilder.Append($"{this.tChart.Series[i].Title} : Y({e.XValue:0.00}) = "); stringBuilder.AppendLine($"{GetInterpolateValue(this.tChart.Series[i] as Custom, e.XValue):0.00}"); } } this.tChart.Header.Text = stringBuilder.ToString(); } #endregion #region TChart 그리기 후 처리하기 - tChart_AfterDraw(sender, graphics3D) /// <summary> /// TChart 그리기 후 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="graphics3D">그래픽스 3D</param> private void tChart_AfterDraw(object sender, Graphics3D graphics3D) { if(this.showMarkerCheckBox.Checked) { int xPixel = this.tChart.Axes.Bottom.CalcXPosValue(this.currentX); graphics3D.Brush.Visible = true; graphics3D.Brush.Solid = true; for(int i = 0; i < this.tChart.Series.Count; i++) { if(this.tChart.Series[i] is Custom) { int yPixel = this.tChart.Series[i].GetVertAxis.CalcYPosValue(GetInterpolateValue(this.tChart.Series[i] as Custom, this.currentX)); graphics3D.Brush.Color = this.tChart.Series[i].Color; graphics3D.Ellipse(new Rectangle(xPixel - 4, yPixel - 4, 8, 8)); } } } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 보간 값 구하기 - GetInterpolateValue(custom, firstIndex, lastIndex, xValue) /// <summary> /// 보간 값 구하기 /// </summary> /// <param name="custom">커스텀 시리즈</param> /// <param name="firstIndex">첫번째 인덱스</param> /// <param name="lastIndex">마지막 인덱스</param> /// <param name="xValue">X 값</param> /// <returns>보간 값</returns> private double GetInterpolateValue(Custom custom, int firstIndex, int lastIndex, double xValue) { int index; for(index = firstIndex; index <= lastIndex; index++) { if(index == -1 || custom.XValues.Value[index] > xValue) { break; } } if(index < 1) { index = 1; } else if(index >= custom.Count) { index = custom.Count -1; } double deltaX = custom.XValues[index] - custom.XValues[index - 1]; double deltaY = custom.YValues[index] - custom.YValues[index - 1]; if(deltaX != 0.0) { return deltaY * (xValue - custom.XValues[index - 1]) / deltaX + custom.YValues[index - 1]; } else { return 0.0; } } #endregion #region 보간 값 구하기 - GetInterpolateValue(custom, xValue) /// <summary> /// 보간 값 구하기 /// </summary> /// <param name="custom">커스텀 시리즈</param> /// <param name="xValue">X 값</param> /// <returns>보간 값</returns> private double GetInterpolateValue(Custom custom, double xValue) { return GetInterpolateValue(custom, custom.FirstVisibleIndex, custom.LastVisibleIndex, xValue); } #endregion } } |
