private void Point3DTo2DButton_OnClick(object sender, RoutedEventArgs e)
{
Point screenPosition = _selectedCamera.Point3DTo2D(new Point3D(0, 0, 0));
MessageBox.Show(string.Format(System.Globalization.CultureInfo.InvariantCulture,
"Calling:\r\nPoint3DTo2D(new Point3D(0, 0, 0)):\r\n\r\nResult:\r\nscreenPosition: {0:0.0}",
screenPosition));
}