public ChartVM()
{
this.DisplayName = "Chart";
_ChartSeries = new ChartSeries("Readings");
LoadReadings();
_RollingSeries = new RollingSeries(_ChartSeries, 1000, 60);
_Series.Add(_RollingSeries.Rolled);
MainVM.Instance.MainModel.Log.CollectionChanged += Log_CollectionChanged;
}
public RollingSeries(ChartSeries source, int max, int step)
{
_Source = source;
Max = max;
Step = step;
Rolled = new ChartSeries(_Source.Name);
_Source.Points.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler(Points_CollectionChanged);
Roll();
}
ChartSeries CreateSeries(int count)
{
ChartSeries series = new ChartSeries("Test");
for (int i = 0; i < count; i++)
{
series.AddPoint(i, i);
}
return series;
}
public void LineChartControlSeriesTest5()
{
LineChartControl target = new LineChartControl();
ObservableCollection<ChartSeries> coll = new ObservableCollection<ChartSeries>();
ChartSeries cs = new ChartSeries("La Palma");
cs.AddPoint(555, 888);
coll.Add(cs);
cs = new ChartSeries("Lanzarote");
cs.AddPoint(18, 4);
cs.AddPoint(19, 3);
coll.Add(cs);
target.Series = coll;
Assert.AreEqual(1, target.Chart.Series["La Palma"].Points.Count);
Assert.AreEqual(2, target.Chart.Series["Lanzarote"].Points.Count);
Assert.AreEqual(555, target.Chart.Series["La Palma"].Points[0].XValue);
Assert.AreEqual(18, target.Chart.Series["Lanzarote"].Points[0].XValue);
target.Dispose();
}
public void LineChartControlSeriesTest4()
{
LineChartControl target = new LineChartControl();
ObservableCollection<ChartSeries> coll = new ObservableCollection<ChartSeries>();
ChartSeries cs = new ChartSeries("La Palma");
coll.Add(cs);
cs.AddPoint(0.644, 2);
cs.AddPoint(2, 4);
cs.AddPoint(5, 10);
cs.AddPoint(20, 42);
target.Series = coll;
Assert.AreEqual(4, target.Chart.Series["La Palma"].Points.Count);
Assert.AreEqual(0.644, target.Chart.Series["La Palma"].Points[0].XValue);
Assert.AreEqual(42, target.Chart.Series["La Palma"].Points[3].YValues[0]);
target.Dispose();
}
public void LineChartControlBindingTest7()
{
LineChartControl target = new LineChartControl();
ObservableCollection<ChartSeries> coll = new ObservableCollection<ChartSeries>();
target.Series = coll;
ChartSeries cs = new ChartSeries("Benidorm");
coll.Add(cs);
for (int i = 0; i < 100; i++)
{
cs.AddPoint(i, i * 2);
}
Assert.AreEqual(100, target.Chart.Series["Benidorm"].Points.Count);
cs.Points.Clear();
Assert.AreEqual(0, target.Chart.Series["Benidorm"].Points.Count);
target.Dispose();
}
private void ResetPoints(ChartSeries chartSeries, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
this.Chart.Series[chartSeries.Name].Points.Clear();
AddPoints(chartSeries);
}
private void RemovePoints(ChartSeries chartSeries, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
int startIndex = e.OldStartingIndex;
int endIndex = startIndex + e.OldItems.Count - 1;
for (; endIndex >= startIndex; endIndex--)
{
this.Chart.Series[chartSeries.Name].Points.RemoveAt(endIndex);
}
}
private void RemoveChartSeries(ChartSeries chartSeries)
{
chartSeries.Points.CollectionChanged -= new System.Collections.Specialized.NotifyCollectionChangedEventHandler(Points_CollectionChanged);
Series series = this.Chart.Series[chartSeries.Name];
this.Chart.Series.Remove(series);
series.Dispose();
}
private void AddPoints(ChartSeries chartSeries, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
foreach (var p in e.NewItems)
{
KeyValuePair<double, double> value = (KeyValuePair<double, double>)p;
this.Chart.Series[chartSeries.Name].Points.AddXY(value.Key, value.Value);
}
}
private void AddPoints(ChartSeries chartSeries)
{
foreach (var p in chartSeries.Points)
{
this.Chart.Series[chartSeries.Name].Points.AddXY(p.Key, p.Value);
}
}
private void AddChartSeries(ChartSeries chartSeries)
{
AddSeries(chartSeries.Name);
AddPoints(chartSeries);
chartSeries.Points.CollectionChanged += new System.Collections.Specialized.NotifyCollectionChangedEventHandler(Points_CollectionChanged);
}
