public GraphViewModel(ICollection <KeyValuePair <int, double> > values0, ICollection <KeyValuePair <int, double> > values1, Brush stroke0, Brush stroke1, string title, string decorate, double min, double max, string xtext)
{
if (values0 != null && values0.Count > 0)
{
this.Values0 = new DoubleCollection();
foreach (var v0 in values0)
{
Values0.Add(v0.Value);
}
}
if (values1 != null && values1.Count > 0)
{
this.Values1 = new DoubleCollection();
foreach (var v1 in values1)
{
Values1.Add(v1.Value);
}
}
Stroke0 = stroke0;
Stroke1 = stroke1;
Title = title;
Decorate = decorate;
Minimum = min;
Maximum = max;
XText = xtext;
}
/// <summary>
/// Process ra data
/// </summary>
/// <param name="entry"></param>
private void ProcessValues1(MonitorEntry entry)
{
var date = entry.Datetime.ToLocalTime();
var point = new PointModel {
DateTime = date, Value = 0, Set = ChartValueSet.Values1
};
var msg = entry.Message.Split(',');
double.TryParse(msg[2], out var steps);
if (IsZeroBased)
{
var zero = Conversions.Deg2ArcSec(90.0) * raStepsPerSecond;
steps -= zero;
}
switch (Scale)
{
case ChartScale.Degrees:
point.Value = Conversions.ArcSec2Deg(steps / raStepsPerSecond);
break;
case ChartScale.Arcsecs:
point.Value = steps / raStepsPerSecond;
break;
case ChartScale.Steps:
point.Value = steps;
break;
default:
return;
}
if (IsLogging)
{
ChartLogging.LogPoint(BaseLogName, ChartType.Plot, point);
}
Values1.Add(point);
if (Values1.Count > MaxPoints)
{
Values1.RemoveAt(0);
}
var item = TitleItems.FirstOrDefault(x => x.TitleName == Values1Title);
if (item == null)
{
return;
}
item.Value = point.Value;
}
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
}