public void Focus()
{
var count = SelectedControlPoints.Count;
switch (count)
{
case 0:
// Focus on whole curve
ResetAxes();
break;
default:
Debug.Assert(SelectedCurve != null);
// Focus on the selection
var center = (WindowsPoint)(SelectedControlPoints
.Select(s => (WindowsVector?)(s as ControlPointViewModelBase)?.ActualPoint)
.Aggregate(new WindowsVector(), (c, s) => s.HasValue ? s.Value + c : c) / count);
SelectedCurve.XAxis?.Center(center);
SelectedCurve.YAxis?.Center(center);
break;
}
}