private void Viewport_PropertyChanged(object sender, ExtendedPropertyChangedEventArgs e)
{
if (e.PropertyName == "Visible")
{
DataRect currVisible = (DataRect)e.NewValue;
if (increasedVisible.Contains(currVisible))
{
var increasedSquare = increasedVisible.GetSquare();
if (increasedSquare > 0)
{
var squareRatio = increasedSquare / currVisible.GetSquare();
if (2 < squareRatio && squareRatio < 6)
{
// keeping old value of increasedVisible
return;
}
}
}
increasedVisible = currVisible.ZoomOutFromCenter(2.0);
chart.OnReset();
}
else if (e.PropertyName == "Output")
{
chart.OnReset();
}
}
