/// <summary>
/// </summary>
public void RestoreLocation()
{
if (markedLocation != Location.Unknown)
{
location.CopyFrom(markedLocation);
}
}
/// <summary>
/// </summary>
public void MarkLocation()
{
if (markedLocation == Location.Unknown)
{
markedLocation = new Location(location);
}
else
{
markedLocation.CopyFrom(location);
}
}