如何正确更新图表值？(实时)

Question

我最近遇到了一个名为LiveChart的工具,并决定对其进行测试.

不幸的是,我一直在弄清楚如何实时更新图表值.我很确定这是一个干净而正确的方法,但我无法找到它.

我希望能够通过private void或按钮更新值.

在我的代码中,我正在用ToolStripMenu测试它.

[码]:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using LiveCharts;
using LiveCharts.WinForms;
using LiveCharts.Wpf;
using PokeShowdown_AccStats_T.Properties;
using LiveCharts.Defaults;

namespace PokeShowdown_AccStats_T
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            //int val1 = int.Parse(Settings.Default.Value1);

            var value1 = new ObservableValue(3);
            var value2 = new ObservableValue(7);
            var value3 = new ObservableValue(10);
            var value4 = new ObservableValue(2);

            //value1.Value = 5;

            cartesianChart1.Series.Add(new LineSeries 
            {
                Values = new ChartValues<ObservableValue> { value1, value2, value3, value4 },
                StrokeThickness = 4,
                StrokeDashArray = new System.Windows.Media.DoubleCollection(20),
                Stroke = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(107, 185, 69)),
                Fill = System.Windows.Media.Brushes.Transparent,
                LineSmoothness = 0,
                PointGeometry = null
            });



            cartesianChart1.Background = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(34, 46, 49));

            cartesianChart1.AxisX.Add(new Axis
            {
                IsMerged = true,
                Separator = new Separator
                {
                    StrokeThickness = 1,
                    StrokeDashArray = new System.Windows.Media.DoubleCollection(2),
                    Stroke = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(64, 79, 86))
                }
            });
            cartesianChart1.AxisY.Add(new Axis
            {
                IsMerged = true,
                Separator = new Separator
                {
                    StrokeThickness = 1.5,
                    StrokeDashArray = new System.Windows.Media.DoubleCollection(4),
                    Stroke = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(64, 79, 86))
                }
            });
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void changeValue1ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Settings.Default.Value1 = "10";
            Settings.Default.Save();
            this.Text = Settings.Default.Value1;

        }

        private void changeValue1To3ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Settings.Default.Value1 = "3";
            Settings.Default.Save();
            this.Text = Settings.Default.Value1;

        }
    }
}

Answer 1

Live-Charts试图保持简单.逻辑是使用您需要绘制的类型的通用集合,然后像添加/删除或更新此集合中的任何元素一样简单,那么您的图表将会更新.

要回答您的问题,您通常需要:

public partial class Form1 : Form
{
    private ObservableValue value1;

    public Form1()
    {
        InitializeComponent();

        //int val1 = int.Parse(Settings.Default.Value1);

        value1 = new ObservableValue(3);
        //...

        cartesianChart1.Series.Add(new LineSeries 
        {
            Values = new ChartValues<ObservableValue> { value1, ... },
        });
    }

    private void changeValue1ToolStripMenuItem_Click(object sender, EventArgs e)
    {
        value1.Value = 10;
        Settings.Default.Value1 = "10";
        Settings.Default.Save();
        this.Text = Settings.Default.Value1;

    }
}

然后该库将处理动画和更新