/// <summary>
/// Initializes a new instance of the <see cref="Move"/> class, with an "old" position that
/// corresponds to it's current position.
/// </summary>
/// <param name="feature">The point feature that is being moved.</param>
internal Move(PointFeature feature)
{
m_Feature = feature;
m_OldPosition = new PointGeometry(feature.PointGeometry);
}
/// <summary>
/// Creates new <c>SpanInfo</c> with everything set to null.
/// </summary>
internal SpanInfo()
{
m_Distance = null;
m_Feature = null;
m_Switches = LegItemFlag.Null;
}