public RLOSViewModel()
{
SurfaceOffset = 0.0;
MinDistance = 0.0;
MaxDistance = 1000;
LeftHorizontalFOV = 0.0;
RightHorizontalFOV = 360.0;
BottomVerticalFOV = -90.0;
TopVerticalFOV = 90.0;
ShowNonVisibleData = false;
RunCount = 1;
IsClearEnabled = false;
IsOkEnabled = false;
IsCancelEnabled = false;
DisplayProgressBar = Visibility.Hidden;
// commands
SubmitCommand = new RelayCommand(OnSubmitCommand);
ClearGraphicsCommand = new RelayCommand(OnClearCommand);
CancelCommand = new RelayCommand(OnCancelCommand);
}