using LiveCharts;//livecharts.net
using LiveCharts.Wpf;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace WpfApplication1
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public SeriesCollection seriesColloection { get; set; }//系列集合
AxesCollection axisx = new AxesCollection();
private double receivedData;
Task t;
public List<string> labels { get; set; }
public double[] yA = { 67,72,81,85,90,80,25};
public MainWindow()
{
InitializeComponent();
LineSeries lineA = new LineSeries();//一條折線
lineA.Title = "A";
lineA.LineSmoothness = 0;
lineA.PointGeometry = null;
labels = new List<string> { "2019/10/10", "2019/10/12", "2019/10/14", "2019/10/16", "2019/10/18", "2019/10/20" };//橫坐標數據
lineA.Values = new ChartValues<double>(yA);
seriesColloection = new SeriesCollection();
seriesColloection.Add(lineA);
this.lvcChart.lvcsub.Series = seriesColloection;
this.lvcChart.lvcsub.AxisX.Add(new Axis {Title="A",Labels= labels });
this.lvcChart.label1.Content = "Original";
}
public void onData_Received() {
t=Task.Run(()=>//從ThreadPool選一個可用的thread;沒有則新建一個
{
var fromRandom = new Random();
while (true)
{
Thread.Sleep(1000);//每隔半秒
receivedData = fromRandom.Next(-100,100);
this.Dispatcher.Invoke(()=> {//通過Dispatcher更新控件數據。UI線程之一Dispatcher負責控件相關的事件的處理
labels.Add(DateTime.Now.AddMilliseconds(100).ToString()); //更新X軸數據
labels.RemoveAt(0);
seriesColloection[0].Values.Add(receivedData);//更新Y軸數據
seriesColloection[0].Values.RemoveAt(0);
this.lvcChart.label1.Content = "Live";
});
}
});
}
private void button_Click(object sender, RoutedEventArgs e)
{
onData_Received();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
if (t != null)
{
t.Dispose();//異常
t = null;
GC.Collect();
}
}
}
}