public DemoDataViewModel()
{
this.ItemsSourceList = new ObservableCollection <SomePointList>();
var first = new SomePointList(0);
for (int i = 0; i < 30; i++)
{
var v = i / 1.0;
var y = Math.Abs(v) < 1e-10 ? 1 : Math.Sin(v) / v;
var pt = new SomePoint(v, y);
first.DataList.Add(pt);
}
this.ItemsSourceList.Add(first);
for (int i = 1; i < 3; i++)
{
var list = new SomePointList(i);
double yOffset = i * 0.5;
foreach (var item in first.DataList)
{
list.DataList.Add(new SomePoint(item.t, item.Y + yOffset));
}
ItemsSourceList.Add(list);
}
}
private SomePoint GetPoint(int i, double yOffset)
{
var v = i / 1.0;
var y = Math.Abs(v) < 1e-10 ? 1 : Math.Sin(v) / v;
var pt = new SomePoint(v, y + 0.25 + yOffset);
return(pt);
}
private void RefreshData()
{
this.ItemsSourceList.Clear();
var list = new SomePointList(0);
for (int i = 0; i < this.SelectedDataSize; i++)
{
var v = i / 100.0;
var y = Math.Abs(v) < 1e-10 ? 1 : Math.Sin(v) / v;
var pt = new SomePoint(v, y);
list.DataList.Add(pt);
}
this.ItemsSourceList.Add(list);
OnSelectedScatterTemplateTypeUpdated();
UpdateScatterVisible();
}
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
if (item == null)
{
return(null);
}
SomePoint pt = (SomePoint)item;
int i = (int)pt.t;
if (i % 2 == 0)
{
return(DataTemplate1);
}
return(DataTemplate0);
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null)
{
return(null);
}
SomePoint pt = (SomePoint)value;
int i = (int)pt.t;
int j = (int)pt.Y;
if (i % 2 == 0 && j % 2 == 0)
{
return(Brushes.Red);
}
return(Brushes.LightSeaGreen);
}