[TeeChart] Line 그리기 - ColorLine

차트에 특정 Value 값기준으로 직선을 긋는 로직입니다.

using Steema.TeeChart.Export;
using Steema.TeeChart.Styles;
using Steema.TeeChart.Tools;

namespace Win.TeeChartLegendClickTest
{
    public partial class ChartForm : Form
    {
        public ChartForm()
        {
            InitializeComponent();

            // Set SampleData
            for (int i = 0; i < 10; i++)
            {
                Points points = new Points(this.tChart.Chart);
                points.XValues.DateTime = true;

                points.FillSampleValues(20);
            }

            // X Custom Line
            ColorLine colorLinex = new ColorLine();
            colorLinex.AllowDrag = false;
            colorLinex.Pen.Color = Color.Black;
            colorLinex.Axis = this.tChart.Axes.Bottom;
            colorLinex.Pen.Style = Steema.TeeChart.Drawing.DashStyle.Solid;
            colorLinex.Pen.EndCap = Steema.TeeChart.Drawing.LineCap.Round;
            colorLinex.Pen.DashCap = Steema.TeeChart.Drawing.DashCap.Round;
            colorLinex.Value = DateTime.Now.AddDays(10).ToOADate();

            this.tChart.Tools.Add(colorLinex);

            // Y Custom Line
            ColorLine colorLiney = new ColorLine();
            colorLiney.AllowDrag = false;
            colorLiney.Pen.Color = Color.Black;
            colorLiney.Axis = this.tChart.Axes.Left;
            colorLiney.Pen.Style = Steema.TeeChart.Drawing.DashStyle.DashDot;
            colorLiney.Pen.EndCap = Steema.TeeChart.Drawing.LineCap.Round;
            colorLiney.Pen.DashCap = Steema.TeeChart.Drawing.DashCap.Round;
            colorLiney.Value = (this.tChart.Axes.Left.MinYValue + this.tChart.Axes.Left.MaxYValue) / 2;

            this.tChart.Tools.Add(colorLiney);
        }
    }
}

ColorLine 을 이용해 Value 값을 기준으로 선을 긋게 됩니다.

실행결과

[Source]
https://github.com/kei-soft/Win.TeeChartTest