■ Axis 클래스의 SetMinMax 메소드를 사용해 등각 축을 설정하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Runtime.InteropServices; using System.Windows.Forms; using Steema.TeeChart; using Steema.TeeChart.Drawing; using Steema.TeeChart.Styles; using Steema.TeeChart.Themes; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 장치 정보 구하기 - GetDeviceCaps(deviceContextHandle, index) /// <summary> /// 장치 정보 구하기 /// </summary> /// <param name="deviceContextHandle">디바이스 컨텍스트 핸들</param> /// <param name="index">인덱스</param> /// <returns>장치 정보</returns> [DllImport("gdi32")] private static extern int GetDeviceCaps(IntPtr deviceContextHandle, int index); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 수평 크기 (밀리미터 단위) /// </summary> private const short HORZSIZE = 4; /// <summary> /// 수직 크기 (밀리미터 단위) /// </summary> private const short VERTSIZE = 6; /// <summary> /// 라인 /// </summary> private Line line; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); Text = "Axis 클래스 : SetMinMax 메소드를 사용해 등각 축 설정하기"; Theme.ApplyChartTheme(typeof(ReportTheme), this.tChart.Chart); this.tChart.Panel.Pen = new ChartPen(Color.Black); this.tChart.Axes.Left.Grid.Style = DashStyle.Solid; this.tChart.Axes.Left.Grid.Color = Color.Black; this.tChart.Axes.Left.Increment = 50.0; this.tChart.Axes.Left.Labels.Separation = 0; this.tChart.Axes.Bottom.AxisPen.Visible = false; this.tChart.Axes.Bottom.Grid.Style = DashStyle.Solid; this.tChart.Axes.Bottom.Grid.Color = Color.Black; this.tChart.Axes.Bottom.Increment = 50.0; this.tChart.Axes.Bottom.Labels.Separation = 0; this.tChart.Axes.Right.Grid.Style = DashStyle.Solid; this.tChart.Axes.Right.Grid.Color = Color.Black; this.tChart.Axes.Right.Increment = 50.0; this.tChart.Axes.Right.Labels.Separation = 0; this.tChart.Axes.Right.Visible = true; this.tChart.Axes.Top.Visible = false; this.tChart.Legend.Visible = false; this.line = new Line(this.tChart.Chart); this.line.Pointer.Color = Color.White; this.line.Pointer.Visible = true; this.setIsometricAxisButton.Click += setIsometricAxisButton_Click; this.tChart.Zoomed += tChart_Zoomed; this.tChart.UndoneZoom += tChart_UndoneZoom; Random random = new Random(); for(int i = 1; i <= 100; i++) { this.line.Add(i, random.Next(1, 100)); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 등각 축 설정하기 버튼 클릭시 처리하기 - setIsometricAxisButton_Click(sender, e) /// <summary> /// 등각 축 설정하기 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void setIsometricAxisButton_Click(object sender, EventArgs e) { SetIsometricAxis(this.line); } #endregion #region TChart 확대시 처리하기 - tChart_Zoomed(sender, e) /// <summary> /// TChart 확대시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void tChart_Zoomed(object sender, EventArgs e) { SetIsometricAxis(this.line); } #endregion #region TChart 확대 취소시 처리하기 - tChart_UndoneZoom(sender, e) /// <summary> /// TChart 확대 취소시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void tChart_UndoneZoom(object sender, EventArgs e) { SetIsometricAxis(this.line); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 등각 축 설정하기 - SetIsometricAxis(horizontalAxis, verticalAxis) /// <summary> /// 등각 축 설정하기 /// </summary> /// <param name="horizontalAxis">수평 축</param> /// <param name="verticalAxis">수직 축</param> private void SetIsometricAxis(Axis horizontalAxis, Axis verticalAxis) { if((verticalAxis.Chart.Width > 0) && (verticalAxis.Chart.Height > 0)) { double xRange = horizontalAxis.Maximum - horizontalAxis.Minimum; double yRange = verticalAxis.Maximum - verticalAxis.Minimum; double temporaryX = xRange / (double)verticalAxis.Chart.Width; double temporaryY = yRange / (double)verticalAxis.Chart.Height; Screen screen = Screen.FromControl(this); Graphics graphics = Graphics.FromHwnd(Handle); IntPtr deviceContextHandle = graphics.GetHdc(); double xyscreen = GetDeviceCaps(deviceContextHandle, HORZSIZE) * screen.Bounds.Height; xyscreen /= (double)GetDeviceCaps(deviceContextHandle, VERTSIZE) * screen.Bounds.Width; graphics.ReleaseHdc(deviceContextHandle); graphics.Dispose(); temporaryY *= xyscreen; double offset; if(temporaryX > temporaryY) { if(temporaryY != 0.0) { offset = 0.5 * (yRange * temporaryX / temporaryY - yRange); verticalAxis.SetMinMax(verticalAxis.Minimum - offset, verticalAxis.Maximum + offset); } } else if(temporaryX < temporaryY) { if(temporaryX != 0.0) { offset = 0.5 * (xRange * temporaryY / temporaryX - xRange); horizontalAxis.SetMinMax(horizontalAxis.Minimum - offset, horizontalAxis.Maximum+offset); } } } } #endregion #region 등각 축 설정하기 - SetIsometricAxis(series) /// <summary> /// 등각 축 설정하기 /// </summary> /// <param name="series">시리즈</param> private void SetIsometricAxis(Series series) { SetIsometricAxis(series.GetHorizAxis, series.GetVertAxis); } #endregion } } |
