private static void updateTrackballTransform(DependencyObject source, DependencyPropertyChangedEventArgs e)
{
try
{
//if (e.NewValue == e.OldValue)
// return;
bool update = false;
if (e.OldValue == null && e.NewValue != null)
{
update = true;
}
else if (e.NewValue != null && e.OldValue != null)
{
Matrix3D newM = (e.NewValue as Transform3D).Value;
Matrix3D oldM = (e.OldValue as Transform3D).Value;
if (!newM.Equals(oldM))
{
update = true;
}
}
if (update)
{
ViewControlCamera3D control = source as ViewControlCamera3D;
control.UpdateTrackball();
}
}
catch
{
}
}
private static void changeCameraType(DependencyObject source, DependencyPropertyChangedEventArgs e)
{
try
{
if (e.NewValue == e.OldValue)
{
return;
}
ViewControlCamera3D control = source as ViewControlCamera3D;
control.correctScale();
}
catch
{
}
}