private void Read()
{
_isReading = !_isReading;
Task.Factory.StartNew(() =>
{
_timeStamp = DateTime.Now;
Values1.Clear();
Values2.Clear();
Values3.Clear();
while (_isReading)
{
Thread.Sleep(100);
var newItems = GetNext(1);
Values1.AddRange(newItems.Select(x => x.Series1Lecture));
Values2.AddRange(newItems.Select(x => x.Series2Lecture));
Values3.AddRange(newItems.Select(x => x.Series3Lecture));
if (_refreshAxis)
{
var lastPoint = Values3.DefaultIfEmpty(new LecturePoint()).Last().TimeSpan;
To = lastPoint.Ticks;
From = lastPoint.Ticks - TimeSpan.FromSeconds(10).Ticks;
}
}
});
}
/// <summary>
/// process dec data
/// </summary>
/// <param name="entry"></param>
private void ProcessValues2(MonitorEntry entry)
{
var date = entry.Datetime.ToLocalTime();
var point = new PointModel {
DateTime = date, Value = 0, Set = ChartValueSet.Values2
};
var msg = entry.Message.Split(',');
double.TryParse(msg[2], out var steps);
if (IsZeroBased)
{
var zero = Conversions.Deg2ArcSec(90) * decStepsPerSecond;
steps -= zero;
}
switch (Scale)
{
case ChartScale.Degrees:
point.Value = Conversions.ArcSec2Deg(steps / decStepsPerSecond);
break;
case ChartScale.Arcsecs:
point.Value = steps / decStepsPerSecond;
break;
case ChartScale.Steps:
point.Value = steps;
break;
default:
return;
}
if (IsLogging)
{
ChartLogging.LogPoint(BaseLogName, ChartType.Plot, point);
}
Values2.Add(point);
if (Values2.Count > MaxPoints)
{
Values2.RemoveAt(0);
}
var item = TitleItems.FirstOrDefault(x => x.TitleName == Values2Title);
if (item == null)
{
return;
}
item.Value = point.Value;
}
private void button2_Click(object sender, RoutedEventArgs e) //wykres
{
Values1.Clear();
Values2.Clear();
Chart1.Update();
N = Convert.ToInt32(tb1.Text);
A = Convert.ToDouble(tb2.Text);
P = Convert.ToDouble(tb3.Text);
if ((N == 0 && A == 0) || (N == 0 && P == 0) || (A == 0 && P == 0) || (A == 0 && P == 0 && N == 0))
{
MessageBox.Show("Wprowadzone dane nie są odpowiedniego formatu.", "Zły format danych wejściowych");
}
else if (N != 0 && A != 0 && P != 0)
{
MessageBox.Show("Jedno pole powinno zostać puste.", "Zły format danych wejściowych");
}
else if (P == 0) //wykres P(A=const,N)
{
N2 = Convert.ToInt32(tb5.Text);
if (N >= N2)
{
MessageBox.Show("Podany przedział liczbowy nie istnieje.", "Zły format danych wejściowych");
}
OsY.Title = "P(A,N)";
OsX.Title = "N";
SepY.Step = 0.1;
SepX.Step = (int)(N2 / 22) + 1;
DrawChart(1, CalculateNseries(N, N2), CalculatePseries(A, N, N2));
DataContext = this;
}
else if (N == 0) // wykres N(P=const, A)
{
A2 = Convert.ToDouble(tb6.Text);
if (A >= A2)
{
MessageBox.Show("Podany przedział liczbowy nie istnieje.", "Zły format danych wejściowych");
}
OsY.Title = "N(P,A)";
OsX.Title = "A";
SepY.Step = 1;
SepX.Step = 0.5;
DrawChart(2, CalculateAseries(A, A2, P), CalculateNseriesY(CalculateAseries(A, A2, P), P));
DataContext = this;
}
}
public void DrawChart(int series_index, List <double> xvalues, List <double> yvalues)
{
if (series_index == 1)
{
for (int i = 0; i < xvalues.Count(); i++)
{
Values1.Add(new ObservablePoint {
X = xvalues[i], Y = yvalues[i]
});
}
}
if (series_index == 2)
{
for (int i = 0; i < xvalues.Count(); i++)
{
Values2.Add(new ObservablePoint {
X = xvalues[i], Y = yvalues[i]
});
}
}
}
public ChartsViewModel()
{
#region 趋势图
var r = new Random();
for (int i = 0; i < 20; i++)
{
Values1.Add(new ObservableValue(r.Next(0, 20)));
}
for (int i = 0; i < 20; i++)
{
Values2.Add(new ObservableValue(r.Next(0, 20)));
}
#endregion
#region 饼图
Func <ChartPoint, string> f = cp => { return($"值:{cp.Y},{cp.Participation.ToString("f2")}%"); };
PieDataList = new SeriesCollection
{
new PieSeries
{
Title = "饼1",
Values = new ChartValues <ObservableValue> {
new ObservableValue(4)
},
DataLabels = true,
LabelPoint = f
},
new PieSeries
{
Title = "饼2",
Values = new ChartValues <ObservableValue> {
new ObservableValue(3)
},
DataLabels = true,
LabelPoint = f,
FontSize = 18
},
new PieSeries
{
Title = "饼3",
Values = new ChartValues <ObservableValue> {
new ObservableValue(8)
},
DataLabels = true,
LabelPoint = f
},
};
#endregion
#region 柱状图
SeriesCollection = new SeriesCollection
{
new ColumnSeries
{
Title = "2015",
FontSize = 33,
Values = new ChartValues <double> {
10.1245, 50.1245, 39.1245, 50, 78, 99
},
}
};
SeriesCollection.Add(new ColumnSeries
{
Title = "2016",
Values = new ChartValues <double> {
11.1245, 56, 42.1245
},
});
SeriesCollection[1].Values.Add(48d);
SeriesCollection[0].Values.Add(49d);
Labels = new[] { "柱1", "柱2", "柱3", "柱4", "柱5", "柱6", "柱7", "柱8", };
//y轴值转为整数
Formatter = value => value.ToString("f0");
#endregion
}
