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using FlyADBase;
using GalaSoft.MvvmLight.Command;
using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Forms.DataVisualization.Charting;
namespace Flyad7_WPF
{
public class GridAdvVm : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
public bool HasGridAdv { get; set; }
public RelayCommand SaveCmd { get; private set; }
public RelayCommand LoadCmd { get; private set; }
public RelayCommand CalAdLagCmd { get; private set; }
Chart chart3 = null;
FlyAD7 flyad;
int timeGridAdvIndex = 0;
List<IEnumerable<GridAdvUnit>> gridAdvUnits = new List<IEnumerable<GridAdvUnit>>();
public GridAdvVm(FlyAD7 flyad)
{
SaveCmd = new RelayCommand(Save);
LoadCmd = new RelayCommand(Load);
CalAdLagCmd = new RelayCommand(CalAdLag);
this.flyad = flyad;
flyad.TimeGridAdvEvent += flyad_TimeGridAdvEvent;
}
public void Init(Chart chart)
{
this.chart3 = chart;
}
#region timeGridAdv
private async void flyad_TimeGridAdvEvent(object sender, TimeGridAdvEventArgs e)
{
if (chart3 == null)
return;
if (!HasGridAdv)
return;
if (gridAdvUnits == null)
gridAdvUnits = new List<IEnumerable<GridAdvUnit>>();
gridAdvUnits.Add(e.Data);
await Task.Factory.StartNew(() =>
{
//画图
DrawGridAdv(gridAdvUnits.Last());
while (gridAdvUnits.Count > chart3.Series.Count())
gridAdvUnits.RemoveAt(0);
if (gridAdvUnits.Count() >= 2)
{
CurrR = CalGridAdvR(gridAdvUnits[gridAdvUnits.Count() - 1], gridAdvUnits[gridAdvUnits.Count() - 2], 0);
}
});
}
void DrawGridAdv(IEnumerable<GridAdvUnit> units, int adLag = 0)
{
if (chart3 == null)
return;
flyad.ToGrid(units, out int[] datas, adLag);
//画图
timeGridAdvIndex++;
if (timeGridAdvIndex >= chart3.Series.Count())
timeGridAdvIndex = 0;
App.Current.Dispatcher.Invoke(() =>
{
System.Windows.Forms.DataVisualization.Charting.Series series = chart3.Series[timeGridAdvIndex];
series.Points.Clear();
int gridLen = flyad.PosLen / flyad.PosOfGrid;
for (int i = 0; i < datas.Length; i++)
{
int pos = i * flyad.PosOfGrid;
int ad = datas[i];
series.Points.AddXY(pos, ad);
if (ad == Misc.MyBase.NULL_VALUE)
series.Points[i].IsEmpty = true;
}
chart3.ChartAreas[0].AxisX.Minimum = 0;
chart3.ChartAreas[0].AxisX.Maximum = flyad.PosLen;
});
}
//计算相关性
public int BestAdLag { get; private set; }
public double BestR { get; private set; }
public double CurrR { get; private set; }
public double ProgressOfAdLag { get; private set; }
public double ProgressOfR { get; private set; }
double CalGridAdvR(IEnumerable<GridAdvUnit> units1, IEnumerable<GridAdvUnit> units2, int adLag)
{
flyad.ToGrid(units1, out int[] datas1, adLag);
flyad.ToGrid(units2, out int[] datas2, adLag);
return Misc.MyMath.Correl(datas1, datas2);
}
void CalAdLag(IEnumerable<GridAdvUnit> units1, IEnumerable<GridAdvUnit> units2, int adLag, int range, double targetR, out int bestAdLag, out double bestR)
{
int step = range / 5;
if (step < 0)
step = 1;
List<AdLagAndR> rList = new List<AdLagAndR>();
for (int i = 0; i < range; i += step)
{
int _adLag = adLag - i;
double _r = CalGridAdvR(units1, units2, _adLag);
rList.Add(new AdLagAndR() { AdLag = _adLag, R = _r });
ProgressOfAdLag = _adLag;
ProgressOfR = _r;
}
for (int i = step; i < range; i += step)
{
int _adLag = adLag + i;
double _r = CalGridAdvR(units1, units2, _adLag);
rList.Add(new AdLagAndR() { AdLag = _adLag, R = _r });
ProgressOfAdLag = _adLag;
ProgressOfR = _r;
}
double maxR = rList.Max(lr => lr.R);
adLag = rList.Find(_lr => _lr.R == maxR).AdLag;
if (step == 1)
{
//已经是最小查找步进
bestAdLag = adLag;
bestR = maxR;
return;
}
if (maxR >= targetR)
{
//找到了
bestAdLag = adLag;
bestR = maxR;
return;
}
//缩小范围,继续找
range = step * 2;
CalAdLag(units1, units2, adLag, range, targetR, out bestAdLag, out bestR);
}
class AdLagAndR
{
public int AdLag;
public double R;
}
private void Save()
{
string strDesktopPath = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
string path = System.IO.Path.Combine(strDesktopPath, $"{DateTime.Now.ToString("yyyyMMdd_HHmmss")}.json");
string json = Newtonsoft.Json.JsonConvert.SerializeObject(gridAdvUnits);
File.WriteAllText(path, json);
MessageBox.Show($"成功保存到 {path}");
}
private async void Load()
{
string strDesktopPath = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.DefaultExt = ".json";
openFileDialog.Filter = "json文件|*.json";
openFileDialog.InitialDirectory = strDesktopPath;
if (openFileDialog.ShowDialog() != true)
return;
string path = openFileDialog.FileName;
string json = File.ReadAllText(path);
try
{
gridAdvUnits = Newtonsoft.Json.JsonConvert.DeserializeObject<List<IEnumerable<GridAdvUnit>>>(json);
}
catch (Exception ex)
{
MessageBox.Show($"读取失败 {ex}");
return;
}
if (gridAdvUnits == null)
{
gridAdvUnits = new List<IEnumerable<GridAdvUnit>>();
MessageBox.Show($"读取失败 没有数据");
}
else
{
await Task.Factory.StartNew(() =>
{
foreach (var units in gridAdvUnits)
{
DrawGridAdv(units);
}
if (gridAdvUnits.Count > chart3.Series.Count())
gridAdvUnits.RemoveAt(0);
if (gridAdvUnits.Count() >= 2)
{
CurrR = CalGridAdvR(gridAdvUnits[gridAdvUnits.Count() - 1], gridAdvUnits[gridAdvUnits.Count() - 2], 0);
}
});
MessageBox.Show($"读取成功");
}
}
private async void CalAdLag()
{
if (gridAdvUnits.Count() < 2)
{
MessageBox.Show("数量小于2次");
return;
}
int bestAdLag = 0;
double bestR = -1;
await Task.Factory.StartNew(() => {
CalAdLag(gridAdvUnits[gridAdvUnits.Count() - 1], gridAdvUnits[gridAdvUnits.Count() - 2],
0, (int)(1000 / 1.28), 0.99, out bestAdLag, out bestR);
});
BestAdLag = bestAdLag;
BestR = bestR;
await Task.Factory.StartNew(() => {
DrawGridAdv(gridAdvUnits[gridAdvUnits.Count() - 1], BestAdLag);
DrawGridAdv(gridAdvUnits[gridAdvUnits.Count() - 2], BestAdLag);
});
MessageBox.Show($"计算完成 最佳滞后={BestAdLag}");
}
#endregion
}
}