private IEnumerable <KeyValuePair <int, T> > IndexData(SeriesConfiguration <T> config)
{
var f = config.Chart.ZoomingAxis == AxisTags.X
? config.XValueMapper
: config.YValueMapper;
var isObservable = typeof(IObservableChartPoint).IsAssignableFrom(typeof(T));
var i = 0;
foreach (var t in this)
{
if (isObservable)
{
var observable = t as IObservableChartPoint;
if (observable != null)
{
observable.PointChanged -= ObservableOnPointChanged;
observable.PointChanged += ObservableOnPointChanged;
}
}
//I think this config.chart.from and config.chart.to is not anymor useful
//this is causing an issue with double.nan values.
//becase double.nan is not in the range chart.From-chart.To
//for now this is disabled and will be rivewed with Highperformance Release
//var pulled = f(t, i);
//if (pulled >= config.Chart.From && pulled <= config.Chart.To)
yield return(new KeyValuePair <int, T>(i, t));
i++;
}
}
private IEnumerable <KeyValuePair <int, T> > IndexData(SeriesConfiguration <T> config)
{
var f = config.Chart.ZoomingAxis == AxisTags.X
? config.XValueMapper
: config.YValueMapper;
var isObservalbe = typeof(IObservableChartPoint).IsAssignableFrom(typeof(T));
var i = 0;
foreach (var t in this)
{
// this is why you only use IObservalbe if really needed,
// or when you have a small amouth of points
if (isObservalbe)
{
var observable = t as IObservableChartPoint;
if (observable != null)
{
observable.ValueChanged += ObservableOnValueChanged;
}
}
if (f(t, i) >= config.Chart.From && f(t, i) <= config.Chart.To)
{
yield return(new KeyValuePair <int, T>(i, t));
}
i++;
}
}
public SeriesCollection()
{
Configuration = new SeriesConfiguration <double>().X((v, i) => i).Y(v => v);
CollectionChanged += (sender, args) =>
{
if (args.NewItems != null)
{
foreach (var series in args.NewItems.Cast <Series>())
{
series.Collection = this;
}
}
};
}
public SeriesCollection Setup <T>(SeriesConfiguration <T> config)
{
Configuration = config;
return(this);
}
