[C#/WINFORM/SCOTTPLOT] 로그 스케일 사용하기

■ 로그 스케일을 사용하는 방법을 보여준다.

▶ MainForm.cs


using System;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;

using ScottPlot;
using ScottPlot.Plottable;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : Form
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

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

            Plot plot = new Plot(800, 600);

            double[] xValueArray = { 1 , 2   , 3    , 4      , 5       };
            double[] yValueArray = { 10, 2000, 50000, 1000000, 1500000 };

            double[] logYValueArray = yValueArray.Select(y => Math.Log10(y)).ToArray();

            ScatterPlot scatterPlot = plot.AddScatter(xValueArray, logYValueArray, lineWidth : 2, markerSize : 10);

            plot.XAxis.MajorGrid(true, Color.FromArgb(80, Color.Black));
            plot.YAxis.MajorGrid(true, Color.FromArgb(80, Color.Black));
            plot.YAxis.MinorGrid(true, Color.FromArgb(20, Color.Black));
            plot.YAxis.MinorLogScale(true);
            plot.YAxis.TickLabelFormat((double y) => Math.Pow(10, y).ToString("N0"));

            plot.SetAxisLimits(0, 6, 0, Math.Log10(10000000));

            this.formsPlot.Reset(plot);

            this.formsPlot.Refresh();
        }

        #endregion
    }
}

using System;

using System.Drawing;

using System.Linq;

using System.Windows.Forms;

using ScottPlot;

using ScottPlot.Plottable;

namespace TestProject

{

/// <summary>

/// 메인 폼

/// </summary>

public partial class MainForm : Form

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainForm()

/// <summary>

/// 생성자

/// </summary>

public MainForm()

{

InitializeComponent();

Plot plot = new Plot(800, 600);

double[] xValueArray = { 1 , 2 , 3 , 4 , 5 };

double[] yValueArray = { 10, 2000, 50000, 1000000, 1500000 };

double[] logYValueArray = yValueArray.Select(y => Math.Log10(y)).ToArray();

ScatterPlot scatterPlot = plot.AddScatter(xValueArray, logYValueArray, lineWidth : 2, markerSize : 10);

plot.XAxis.MajorGrid(true, Color.FromArgb(80, Color.Black));

plot.YAxis.MajorGrid(true, Color.FromArgb(80, Color.Black));

plot.YAxis.MinorGrid(true, Color.FromArgb(20, Color.Black));

plot.YAxis.MinorLogScale(true);

plot.YAxis.TickLabelFormat((double y) => Math.Pow(10, y).ToString("N0"));

plot.SetAxisLimits(0, 6, 0, Math.Log10(10000000));

this.formsPlot.Reset(plot);

this.formsPlot.Refresh();

}

#endregion

}

TestProject.zip