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using LiveCharts;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace FLY.Thick.Base.UI.UiModule
{
public class FixGraphVmUt : INotifyPropertyChanged
{
#region 图表控制
public double YMax { get; set; } = double.NaN;
public double YMin { get; set; } = double.NaN;
public Func<double, string> XFormatter { get; set; }
public Func<double, string> YFormatter { get; set; }
public double XMax { get; set; } = double.NaN;
public ChartValues<double> Values { get; } = new ChartValues<double>();
#endregion
#region 界面统计值
/// <summary>
/// 平均值
/// </summary>
public double Average { get; set; }
/// <summary>
/// 最大值
/// </summary>
public double Max { get; set; }
/// <summary>
/// 最小值
/// </summary>
public double Min { get; set; }
/// <summary>
/// 3sigma
/// </summary>
public double Sigma3 { get; set; }
#endregion
#region 状态
public DateTime Time { get; set; }
public TimeSpan Interval { get; set; }
public double Intervalms { get; set; }
public int Mix { get; set; }
public bool IsPaused { get; set; }
#endregion
/// <summary>
/// 为了画图快，曲线只能显示最多1000个点
/// </summary>
const int TotalValueCountInView = 1000;
public FixGraphVmUt()
{
#region 与数据无关界面参数
XFormatter = (x) =>
{
int index = (int)x;
double s = Interval.TotalSeconds * index;
return $"{s:F1}s";
};
YFormatter = (y) => y.ToString("F1");
Interval = TimeSpan.FromTicks((long)(TimeSpan.TicksPerMillisecond * 1.28));
Intervalms = ((double)(Interval.Ticks)) / TimeSpan.TicksPerMillisecond;
#endregion
Random random = new Random();
List<double> values = new List<double>();
for (int i = 0; i < 1000; i++)
{
double v = (Math.Sin(i * Math.PI / 400.0) * 0.6) * 2 + 72 + (random.NextDouble() - 0.5) * 1;
values.Add(v);
}
Values.AddRange(values);
}
public event PropertyChangedEventHandler PropertyChanged;
}
}